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Author: Smartweigh–Multihead Weighter
How do automatic bag filling and sealing machines work? Nowadays, automatic bag filling and sealing machines are becoming more and more popular because of their simplicity, ease of use and beautiful finished products. Whether you're new to packaging machinery or considering adding pre-made pouch packaging to your product line, you'll probably be interested in how these machines operate. Let me introduce to you how the automatic filling machine works! Introduction to the automatic bag filling and sealing machine The bag filling and sealing machine can be designed in an in-line or rotating layout.
Simplified Rotary Automatic Bag Wrapper Grabs preformed bags, fills and seals product at a speed of 200 bags per minute. This process involves moving bags in intermittent rotation to different "stations" placed in a circular arrangement. Each workstation performs different packaging tasks.
There are usually 6 to 10 workstations, with 8 being the most popular configuration. The automatic bag filling machine can also be designed as single lane, two lanes or four lanes, this is how the bag packing process works: 1. Bagging Prefabricated bags are manually loaded into the bag box at the front of the automatic bag packing machine by the operator middle. Bags are conveyed to the machine by bag feed rollers.
2. Grip the bag When the proximity sensor detects the bag, the vacuum bag loader picks up the bag and transfers it to a set of grippers that will travel to different "stations" as the bag travels around the rotary packaging machine when fixing it. On models of the bag-optimized filling and sealing machine, these grippers can support up to 10kg continuously. For heavier pouches, a continuous bag support can be added.
3. Optional printing/embossing If printing or embossing is required, place the equipment on this workstation. The bagging and sealing machine can use both thermal and inkjet printers. The printer can place the desired date/batch code on the bag.
The embossed option puts a raised date/batch code into the bag seal. 4. Zip or open bag detection If the bag has a zipper closure, the vacuum suction cup will open the lower part of the pre-formed bag, and the opening claw will grab the top side of the bag. The open jaws split outward to open the top of the bag, and the prefabricated bag is inflated by a blower.
If the bag does not have a zipper, the vacuum pad will still open the bottom of the bag, but will only engage the blower. There are two sensors near the bottom of the bag to detect the presence of the bag. If no bag is detected, the fill and seal station will not engage.
If there is a bag but it is not placed correctly, the bag will not be filled and sealed, but will remain on the rotating equipment until the next cycle. 5. Bags The product is usually dropped from the bag funnel into the bag by the multi-head scale. For powder products, use an auger filler.
For liquid bag filling machines, the product is pumped into the bag through a liquid filler with a nozzle. Filling equipment is responsible for correctly measuring and releasing discrete quantities of product to be dripped into each pre-made bag. 6. Product settlement or other options Sometimes, loose contents need to settle to the bottom of the bag before sealing.
This workstation does the trick with a gentle shake of the pre-made bags. Other options for this station include: 7. Bag sealing and deflation The remaining air is squeezed out of the bag by two deflation parts prior to sealing. The heat seal closes on the upper part of the bag.
Using heat, pressure and time, the sealant layers of the preformed bag are bonded together to form a strong seam.
Author: Smartweigh–Multihead Weighter Manufacturers
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