Automatic Bagging Machines

One of our manufacturers recently designed and implemented an automated robot depalletizer and bag dump station for a customer in the chemical industry. The system involves a robot depalletizer that unstacks 50 lb. bags of chemical powders from a shipping pallet located to the left and right side of the robot.  The bags are picked up 3 at a time and placed 1 at a time on a conveyor that transports them to an inclined belt conveyor that discharges them into automatic bag dump station. In this article, we’ll provide an overview of the system, explain how the robotic depalletizer system works using a vision system, and outline the features and benefits of the system.

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These valve bag filling machines are used to fill 50 Lb. paper valve bags with different types of high-quality silica sand.  After filling, bags are conveyed to an automatic palletizer that stacks the bags on a pallet.

This type of silica sand is a high-quality round and sub-round silica sand with mesh sizes ranging between 8×16 and 100.  It has many uses including:

• turf sand used for infill to protect artificial turf and increase its life expectancy
• roofing sand for specialty roofing tiles, flooring titles, and colored grout
• building and industrial sands as an ideal base for construction, concrete, bricks, foundry, and flooring
• water filtration sand used in wells, filters, and other water fixtures
• glass sand for large quantity glass production
• oil and gas hydraulic fracturing sand

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Lot / batch code and date printed on bottom part of bag after passing print head

This inkjet code printer was put to the test in an animal feed and minerals packaging line. Multi-wall open mouth paper bags, filled with animal feed are sewn shut.  Then, they pass in front of the code printer on a conveyor before robotic palletizing. As each bag passes the code printer, a lot code and date are printed on the bottom part of the bag.  Each of these unique codes helps to identify when the batch of product was produced and packaged.

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The video below shows a pallet stacking robot stacking 50 lb. paper valve bags onto a pallet located on the floor per the programmed bag placement design.  This robot was added to an existing bag filling system to reduce labor costs and increase automation.

Watch a Video:

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This automated bagging machine uses a high-speed net weigher and bag placer to package free-flowing products into stand up pouches or doypacks.

Stand up pouch being filled with specialty dog food

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The automatic bag placer machine picks up, hangs, and clamps an empty open mouth bag onto a bagger before product is discharged into a bag.  Up to 20 bags per minute are possible and it works with both new / existing net weigh and gross weigh bagging scales.  With this type of automation, one full-time operator can be removed from the bagging system.

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This machine automatically reforms or prepares the top of flat, pillow type open mouth bags and guides them into the infeed of a high-speed bag closer or sewing machine.

Bag moves through a bag top reformer before sewing

This type of automation can eliminate the need for an operator to manually guide a filled bag into a bag closing system.  It can handle production rates up to 15 bags per minute and typically comes with an automatic bag placer.

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Automatic pallet dispenser, slip sheet applicator, and robot stack zone conveyor (System 1)

When speed and bagging rate is important, automating the dispensing of pallets and slip sheets helps to reduce labor requirements for feeding shipping pallets into an automated palletizing system with a robot.

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This commercial equipment is used for repackaging bulk dry goods stored in bulk bags, bins, totes, pro boxes, 40-50Lb bags, and more into small bags, pouches, and containers.

Examples of free-flowing bulk dry goods to repackage or re-bag would be food products such as rice, nuts, coffee beans, sprinkles, pasta, beans, candy, seeds, dog food, and cat food as well as products such as feed pellets, wood pellets, and plastic pellets.

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This packaging and palletizing line fills craft paper bags with 25, 40, or 50 lbs. of livestock minerals and supplements.  It includes a hopper, net weigh bag filling machine, high-speed bag sewing system, and robotic palletizer with 2 bag stack zones.  It replaced an existing bag filling and packaging line at the feed service company that has been in business since 1946.

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End-of-line robot picking up 100 lb. bag of minerals using a bag gripper tool

A contract packaging company recently added an end-of-line robot to their existing valve bag filling system.  The new robotic palletizing system includes bag handling and robotic pick conveyors, a used Fanuc robotic arm that has been reconditioned with a bag gripper tool, and an automated pallet and slip sheet dispenser.

With the added palletizing automation, the entire system is now able to fill and stack 100 lb. paper valve bags at a rate of 10-12 bags/minute.  The company can also quickly swap out settings to fill and stack 50 lb. valve bags at a rate of 15-16 bags/minute.

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Use an automated bagging system to fill boxes and baler bags with small pre-packaged, form fill and seal (FFS) bags or pouches containing products such as grains, sugar, flour, salt, powders, and more.  This type of automation can enhance your end of line packaging and provide a more convenient way to ship and handle smaller bags together as a stackable unit.

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Automatic bagging systems for pouches, open mouth bags, and valve bags

Automatic bagging systems are typically used to fill and seal bags and pouches containing 1-110 lbs. of product.  The systems can be categorized by the types of bags or pouches being filled.

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