Novel bag expanding and box packaging process

Abstract

The invention provides a novel bag expanding and box packaging process. The process comprises the steps that (1) a packaging bag is conveyed or placed on a vacuum conveying belt, and the packaging bagand the vacuum conveying belt are in synchronous transmission; (2) a bag pre-opening assembly opens a bag opening of the packaging bag to form an opening or a gap; (3) a bag expanding assembly entersthe pre-opening of the packaging bag to completely expand the bag opening of the packaging bag to be rectangular; and (4) a box pushing assembly pushes a packaging body into the packaging bag. The packaging bag is conveyed after being adsorbed and fixed through the vacuum conveying belt, the clamping structure of the packaging bag is simplified, and the packaging bag can be prevented from shifting in the conveying process; the packaging bag is pre-opened through the vacuum conveying belt and a bag pre-opening rotary arm, the step that a bag opening suction nozzle adsorbs the packaging bag isomitted, and the bag pre-opening rotary arm starts to reset while the bag is pre-opened; after a bag expanding piece stretches into the bag pre-opening, the packaging bag is expanded outwards, the bagclamping step of a bag opening film clamp is omitted, and the bag expanding procedure is simplified; and a box pushing mechanism is installed in a machine, the occupied space of the machine is reduced, and all structures in the machine are more compact.

Description

technical field [0001] The invention relates to the field of packaging and bag making, in particular to a novel bag-enlarging and box-packing process. Background technique [0002] In view of the existing bag expansion process, most of them use film clips to clamp and fix the packaging bags and then move them for transmission, or use conveyor belts for transmission. The former needs film clips to clamp and fix the packaging bags before transmission, while the latter lacks Fixing device, the packaging bag is easy to shift; in the subsequent bag opening process, after the bag opening nozzle opens the pre-opening of the packaging bag, the bag opening film clip is required to clamp and fix the packaging bag up and down, and the bag opening nozzle can be reset after the bag opening nozzle is reset. Open the bag; the main body of the push box mechanism is set outside the machine, and the internal structure of the machine is not compact enough, which increases the occupied space of...

AI Technical Summary

Problems solved by technology

[0002] In view of the existing bag expansion process, most of them use film clips to clamp and fix the packaging bags and then move them for transmission, or use conveyor belts for transmission. The former needs film clips to clamp and fix the packaging bags before transmission, while the latter lacks Fixing device, the packaging bag is easy to shift; in the subsequent bag opening process, after the bag opening nozzle opens the pre-opening of the packaging bag, the bag opening film clip is required to clamp and fix the packaging bag up and down, and the bag opening nozzle can be reset after the bag opening nozzle is reset. Open the bag; the main body of the push box mechanism is set outside the machine, and the internal structure of the machine is not compact enough, which increases the occupied space of the machine

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