Composite packaging bag forming method and positioning device
A composite packaging bag and molding method technology, applied in the field of packaging bags, can solve the problems of destroying the structure of the organ side, unqualified products, large position errors of the organ side, etc.
Active Publication Date: 2018-02-23
KINDERWAY PACKAGING XIAMEN CO LTD
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Problems solved by technology
Because the positioning of the second and third photoelectric eyes in this traditional positioning method is based on the cursor on the upper film, and the organ side is heat-bonded with the lower film, so that the organ side will be in contact with the lower film during the heat-sealing process. The upper film produces a large position error, and even damages the structure of the organ side, which is likely to cause unqualified products
Method used
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Embodiment Construction
[0015] Such as figure 1 As shown, the composite packaging bag 10 is composed of an upper film 101 , a lower film 102 and an accordion edge 103 . The bellows 103 is connected between the upper membrane 101 and the lower membrane 102 .
[0016] Such as Figure 2-Figure 4 As shown, the positioning device for the composite packaging bag on the composite packaging bag making machine includes an organ edge ironing machine 1, an organ edge feeding device 2, a PE film ironing press 3, a tractor 4 and a first photoelectric eye 5. The second photoelectric eye 6, the third photoelectric eye 7 and the frame 8, etc. The organ side hot press 1, the organ side feeding device 2, the PE film hot press 3, and the tractor 4 are arranged in sequence according to the process flow. The first photoelectric eye 5 is installed on the frame 8 and is located at the end of the organ side feeding device 2 and below the organ edge strip material 40; the second photoelectric eye 6 is installed on the fra...
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The invention discloses a molding method of a composite packaging bag and a positioning device thereof, including the steps of feeding, positioning the bellows side, heat sealing the bellows and the lower film, spot ironing the upper film and the lower film, heat sealing the upper film and the lower film, punching and the like . Because the second and third photoelectric eyes of the present invention use the lower film cursor as the positioning reference, the bellows are heat-bonded with the lower film, so that the position error produced by the upper film and the lower film will not affect the relative position of the bellows and the upper film , will not damage the overall structure of the packaging bag, but will only affect the position error of the pattern on the upper film (that is, the pattern on the upper film and the pattern on the lower film will be misaligned, and this misalignment is within the tolerance range), so that The good rate of the product of the present invention is higher.
Description
technical field [0001] The invention relates to the field of packaging bags, in particular to a forming method and a positioning device for a composite packaging bag. Background technique [0002] With the rapid development of the national economy and the continuous increase in the output value of industrial and agricultural production, the use of packaging bags is becoming more and more extensive. There are more and more structures and shapes of packaging bags. Various composite packaging bags have appeared on the market. To meet the needs of production and life. The traditional composite packaging bag production method includes feeding, heat sealing, punching (notch) and other processes. In this traditional production method, there are three positioning references provided by three photoelectric eyes. The first photoelectric eye is located on the organ The end of the side feeding device, below the side material of the organ, is based on the side material of the organ; the...
Claims
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IPC IPC(8): B31B70/04B31B70/64B31B70/20B31B160/10B31B50/02B31B50/64
Inventor 郭建新蔡华庚
Owner KINDERWAY PACKAGING XIAMEN CO LTD