Open Mouth Bagging Machine Buyer Guide (2021 Update)

What Is The Open-mouth Bagging Machine?

Open mouth bag machine

Bagging machines are such types of machines that help in packaging a variety of products. It includes all types of products, but these machines are best for cosmetic and pharmaceutical products. Many companies worldwide claim to provide the best service bagging machine, so kindly check and review before you opt for choosing a bagging machine.

Open-mouth bagging machines are the type of bagging machines that have an open mouth on them and are hence termed as open-mouth bagging machines.

Types of Available Bags

There are two kinds of bags that are quite in demand in bagging machines industries, and they are open mouth bags and valve bags.

open mouth bagging machine

The open-mouth bag is a straight tube bag with a seal at the bottom and no seal on the top. The packaged products are directly dumped or put into the bag under gravity and then stitched and packaged by an industrial sewing machine. The bag materials include woven bags, plastic bags, and paper bags. The open-mouth bag packaging technology is low, and the material needs to be sealed again after being filled, which requires a lot of labor costs. However, due to its low cost, it is also widely used in various industries.

Valve bag

In valve bags, there is an additional feature which is the presence of a valve. The top and bottom of the bag have been sewn, leaving only one feeding port (valve) for machine filling. The packaged products are loaded into the bag from the filling port under pneumatic or mechanical power. The valve bag packaging cost is high, and the packaging machine is also more expensive, but the weighing is very accurate, easy to stack. Because of the feature that does not need to be sealed again saves a lot of human resources and makes the production more efficient. In addition, the valve bag packaging is more beautiful. It also enhances the product image virtually.

Holding bag and Heat Sealing: After the material filling is completed, the bag mouth is clamped horizontally through the bag-holding conveying mechanism. The bag is horizontally conveyed to the guide entry mechanism, and the bag is conveyed to the heat sealing station for automatic heat sealing.

Open Mouth Bagging Machine Types

The packaging machines are naturally divided into valve bag packaging machines and open mouth bag packaging machines for different packaging bags.

Open Mouth Bag Packaging Machines

The open-mouth bag bagging machine is mainly used for automatic quantitative packaging of powder and granular materials. It is suitable for quantitative packaging of materials in sugar, salt, flour, grain, feed, chemical industry, and food industry. It is usually equipped with a sewing machine.

According to different materials and filling methods, packaging machines can be divided into the following three types.

  • Bottom-up filler bagging machine

The open-mouth bagging systems are specifically designed for the food, chemical, and pharmaceutical industries to bag powdery materials, for example, milk, whey, or lactose powders. The bagging system features our patented dust reduced, bottom-up filling technology, ensuring high accuracy during the filling process. After bag placement, the filling spout moves down the bag during the filling cycle. A minimum distance between the filling point of the vertical filling screw and the product in the bag is kept to minimize the dust emission and reduce the product aeration significantly. The vertical screw is frequency control driven, allowing all powdery products to be filled hygienically, accurately, and quickly. These bagging systems feature cost-effective designs, including bag transport with open-bag-top transport or bag transport with closed bag-top. The packing weight range: 10-50kg

  • Open mouth bagging machine

The open-mouth bagging systems are specifically designed for the food, chemical, and pharmaceutical industries to bag powdery materials, for example, milk, whey, or lactose powders. The bagging system features our patented dust reduced, bottom-up filling technology, ensuring high accuracy during the filling process. After bag placement, the filling spout moves down the bag during the filling cycle. A minimum distance between the filling point of the vertical filling screw and the product in the bag is kept to minimize the dust emission and reduce the product aeration significantly. The vertical screw is frequency control driven, allowing all powdery products to be filled hygienically, accurately, and quickly. These bagging systems feature cost-effective designs, including bag transport with open-bag-top transport or bag transport with closed bag-top. It has a Packing weight range of 10-50kg.

  • Semi-automatic packing machine

A semi-automatic quantitative packaging machine is a combination of mechanical and electronic products. It is equipped with three levels of pneumatic sluice type self-weight material dropping unit, suitable for packing production line with granule shape material, such as rice, white granulated sugar, feedstuff, plastic particles., etc., usually equipped with the sewing machine. It has a Packing weight range of 10-50kg.

Valve bag packaging machines

The valve bag packaging machine is an automatic quantitative packaging machine designed for various fine or ultra-fine powder materials with low bulk density, strong air affinity, and excellent or poor self-flow. It is mainly divided into impeller-type packaging, spiral, and pneumatic-type packaging.

The valve bag is divided into an outer valve bag and an inner valve bag. The principle of a sealing method is when a material is filled. The material will be squeezed from the inside to close the valve port to achieve sealing. The outer valve port is filled with the material later, it needs to be folded manually, and the inner valve bag is automatically sealed after the material is filled.

Working Process Of Automatic Bagging Machine

  1. Pre-place Empty Bags

Place 2~3 stacks of empty bags at the same time to provide bags for the packaging machine.

  1. Take an Empty bag

The bag sucking mechanism sucks the bottom of the bag with negative pressure, while the roller-up type bag transmission structure flattens the bag mouth and transmits it to the bag opening station.

  1. Open Empty bag

The bag opening mechanism simultaneously sucks the positive and negative sides of the bag mouth with negative pressure. The negative pressure sucks the bag mouth and lifts it, and then the “insert knives” structure located on both sides of the material discharge port is inserted into the bag mouth by shaft rotation and spread to both sides.

  1. Supply Empty bag

Transfer the empty bag to the bag clamping mechanism by lifting the knife arm to complete the bag supplying operation. The bag clamping mechanism clamps both sides of the bag to prevent dust from overflowing.

  1. Material Filling

The bag clamping detection device ensures the reliability of the bag supplied. After the detection is completed, the PLC will signal the automatic weighing unit, then the material in the weighing unit will be discharged into the packaging bag. During the filling process, perform bottom vibration operation. At the same time, through the external dust removal interface, the dust formed by the material is pumped away in the discharge process.

    6. Holding bag and Heat Sealing

After the material filling is completed, the bag mouth is clamped horizontally through the bag-holding conveying mechanism. The bag is horizontally conveyed to the guide entry mechanism, and the bag is conveyed to the heat sealing station for automatic heat sealing.

Open Mouth Bagging Machines for Sale

Open Mouth Bagging Machine

open mouth bagging machine

Conclusion

This article is an intricate description of open-mouth bagging machines that depict such packing machines’ ideal types. We also elaborated features of the types of machines which are the best example of open-mouth bagging machines.

Leave a Reply

Your email address will not be published.