How to test the opening performance of fruit glass can

Abstract: canned packaging is an effective method for long-term preservation of fruits, which plays an important role in daily life In this paper, focusing on the problem of can opening performance that consumers are generally concerned about, using Labthink Languang njy-20 torque meter to test the rotating torque needed to open the fruit can sample, and introducing the basic process of the test, the testing principle of the equipment, the equipment parameters and other contents in detail, the enterprise can refer to when testing the opening performance of unscrewing bottle cap packaging Key words: fruit can, glass bottle, unscrewing bottle cap, opening performance, rotating torque, opening force, torque meter 1 Zui of meaning fruit can originated in France and was developed to extend the shelf life of fruit The specific processing process is: after processing the fresh fruit, put it into the packaging container, and then through the sealing high temperature sterilization, exhaust, sealing, cooling and other processes, reduce the microbial content, so as to obtain the fresh-keeping food with extended shelf life, and maintain the appearance and nutrition of the fruit well The packaging materials commonly used for canned fruits are tinplate, glass, etc Figure 1 The common fruit can packaging "the delicious can lid is hard to open" is for the glass can with the unscrewing metal bottle lid This sentence fully illustrates the trouble caused by the hard opening of the fruit can lid to the consumers The reason why the canned fruit in glass bottle is not easy to open is that in the production process of can, in order to improve the quality guarantee effect, exhaust treatment is often carried out before the cover is sealed, so the internal pressure of the sealed package is lower than the external atmospheric pressure, so the phenomenon that the can cover is not easy to open appears However, in the production process, due to the different exhaust degree, the different cold and hot degree of the contents when sealing, or the improper control of the sealing process, the existence of quality defects in glass bottles and bottle caps and other factors, the opening force of fruit cans will be different, and even the opening force will be too large, seriously affecting the consumption of consumers, or the opening force is too small, resulting in poor sealing of cans and other problems Question Therefore, it is an effective measure to strengthen the detection of the opening performance of glass can to improve the product quality 2 At present, the testing process of this paper is based on ASTM d2063 test method for measuring the torque retention of spiral cover of packaging At present, there is no test standard for rotating torque of metal cover of glass bottle can in China 3 Test sample can of fruit in a certain brand of glass bottle 4 In this paper, njy-20 torque meter developed by Jinan Languang mechanical and Electrical Technology Co., Ltd was used to test the torque value of canned fruit in glass bottles Fig 2 njy-20 torque meter 4.1 test principle uses the phase difference sensor equipped with torsion angle to realize the monitoring of the electric signal of the elastic shaft when the sample is tested by the strain bridge test method, so as to test the opening torque value or the locking value of the bottle cap 4.2 scope of application: bottled container: it is applicable to the torque value test of the bottle cap locking and opening of bottled drugs and food, such as medicine bottle, beverage bottle, etc Hose packaging products: it is applicable to the torque value test of locking and opening the cap of hose packaging food, medicine, cosmetics, etc., such as eyedropper, hand cream, shoe polish (threaded connection), etc Extended application: applicable to the torque value test of nut and bolt locking and opening, or the torque value test of thermos bottle and thermos cup (threaded connection) cap locking and opening Standard: This equipment can meet many national and international standards, such as GB / T 17876, ASTM D 2063, ASTM d3198, ASTM d3474, BB / T 0025, BB / T 0034, etc 4.3 the equipment parameter torque specifications are 20 nm, 40 nm and 50 nm, the accuracy is level 1, and the system resolution is 0.001 nm Clamping range 5 mm to 170 mm (diameter) Provide double test mode of opening force and locking force The peak value of measurement is kept automatically to ensure that the test results are recorded accurately The intelligent configuration of overload protection, automatic zero clearing and fault prompt ensures the operation safety of users The system adopts microcomputer control, LCD screen and PVC operation panel, which is convenient for users to check the test data and results quickly and intuitively Support Lystem TM laboratory data sharing system, and manage test reports and test results in a unified way 5 During the test (1) turn on the power switch of the test equipment, set the test mode as "opening torque", number of samples and other parameter information (2) Clamp the test sample onto the test equipment (3) Click the test option, and loosen the sample bottle cap by hand The equipment automatically records the Zui large torque value in the process of loosening the bottle cap, which is the rotation torque of the sample Fig 3 test process of sample Fig 6 test results rotation torque of three canned fruit glass bottles was tested in this test, with test results of 4.289 nm, 4.273 nm and 4.311 nm respectively 7 Conclusion the value of rotating torque has an important influence on the sealing performance and the convenience of using the unscrewing bottle cap In this paper, nly-20 torque meter is used as the testing equipment to test the rotating torque value of the fruit can glass bottle packaging The equipment is simple to operate, and the test results have good repeatability and high precision Jinan Languang mechanical and Electrical Technology Co., Ltd is a high-tech enterprise specializing in the research and development of packaging testing equipment It has always been committed to providing professional, packaging testing equipment and timely and thoughtful packaging testing services for customers around the world The testing equipment and services available cover many industries such as food, daily chemical, medicine and medical equipment, automobile, health care products, and so on You can log in Jinan Languang company to check or call directly for consultation The more you understand, the more you trust! 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