Volumetric Cup Filling Machine for Roll Film Bags

I. Cost-Effective Filling Machine for Granular Materials

The volumetric cup filling machines for roll film bags are very common to see in the granular food production line. Because this type machine has unique working principle and excellent cost-effectiveness for numerous granular food products. This article will provide a comprehensive analysis of this equipment.

II. Overview of the Roll Film Bag Filling Machine

The volumetric cup filling machine is a vertical, automated, and intermittent packaging device. It combines the roll film bag making, granule material filling, bag sealing, code printing, etc functions into one device. The core advantage is the design of volumetric measuring cup, making it particularly suitable for packaging free-flowing, and uniformly sized solid materials.

III. Why Is It Called Volumetric Cup Type

The name of this device comes directly from its core measuring component and measuring principle.

Similar to the measuring cups we use in our kitchens to measure rice and flour, this machine contains one or more fixed or adjustable volume cups. The material measuring is not by weighing, but by a cup with a predetermined volume. Therefore, people call this measurement method volumetric measurement. Thus, the machine is volumetric cup type.

IV. Detailed Explanation of Working Principle

The volumetric cup type small bag filling machine operates smoothly and efficiently. Its core cup dosing principle ensures packaging speed and consistency.

Overall Workflow:

1. Vertical Sealing of Film Roll: The composite film roll is on the top of the machine. Start the program on the touch screen, the film automatically slides down, and the machine performs a vertical seal.

2. Horizontal Sealing of Bag Bottom: After sealing the left and right sides of the bag, the bottom of the bag enters the heat-sealing process. This facilitates the subsequent filling process.

3. Core Step: Measuring Cup Measurement and Filling

Filling Stage: Materials in the hopper at the top of the machine falls into the measuring cups rotating below through an agitator or natural flow, ensuring the measuring cups are filled.

Leveling Stage: An adjustable scraper or rotating brush removes excess material from the top of the measuring cups, ensuring precise and consistent material volume in each measuring cup. This is a crucial step in ensuring measurement accuracy.

Feeding Stage: When the filled and leveled measuring cup rotates or moves directly above the discharge port, the bottom of the cup opens (or is tilted), and the material is completely and quickly fed into the packaging bag below, which already has its bottom prepared.

4. Sealing and Cutting Completion: After filling, the horizontal sealing device operates again to seal the top of the bag, and the cutter separates the finished bag from the film tube.

V. Applicable Materials: Especially Suitable for Uniform Granules

Volumetric cups are not a panacea; they have specific requirements for materials, but they perform exceptionally well in suitable applications.

Regular and uniform particle size: For example, white sugar, monosodium glutamate, oatmeal, crystalline fructose, small nuts (such as sesame seeds, sunflower seeds), seeds, dried grains (such as millet, mung beans), solid beverage granules, etc.

Good flowability: The material should be able to smoothly fill the measuring cup under gravity and drain easily without sticking or bridging.

Stable density: Since it is a volumetric measurement, the bulk density of the material needs to remain stable to ensure the accuracy of the weight of each bag.

Not too light: This is a crucial point. For materials that are too light and easily generate dust(such as milk powder, protein powder, flavoring powder), the measuring cup easily generates a lot of dust during filling and leveling. They are more suitable for the weighing mode filling machine.

VI. Technical Parameters

VII. Summary and Recommendations

With the above introduction, we believe that you have a basic understanding of the volumetric cup filling machine now. If you are interested, please leave a message to contact us. We will first confirm your packaging requirements and then recommend a suitable model.