Working method of sachet dropping machines

On automated packaging production lines, sachet inserters are very important auxiliary equipment. They are mainly used to accurately insert small packaged items such as desiccants, oxygen absorbers, cards, and instruction leaflets into product packaging bags, making them an indispensable part of achieving automated packaging. Today, let's briefly introduce how sachet inserters work.

There are many types of sachet inserters. Classified by working method, common types include rotary sachet inserters, reciprocating sachet inserters, and vacuum adsorption sachet inserters. The working principles of different types of sachet inserters are slightly different, but their core function is the same—to accurately insert small packaged items into designated positions.

Rotary sachet inserters are one of the most common types. The equipment has a turntable with multiple hoppers, each holding one small package to be inserted. During operation, the turntable rotates at a constant speed. When a hopper reaches the insertion position, the insertion mechanism opens, and the small package falls into the packaging bag below under gravity. This type of sachet inserter has a simple structure, runs stably, and operates relatively fast, inserting anywhere from a few dozen to over a hundred packages per minute.

Reciprocating sachet inserters achieve insertion through reciprocating motion. The equipment has an insertion arm that first picks up a small package from the hopper, then moves to the insertion position to drop it into the packaging bag, and returns to pick up the next one. This type of sachet inserter offers high insertion precision and is suitable for occasions with relatively strict positioning requirements.

Vacuum adsorption sachet inserters use vacuum suction to pick up and place small packages. The equipment has a vacuum cup that first suctions onto the small package, then moves to the insertion position and releases the vacuum, allowing the small package to fall. This type of sachet inserter is suitable for relatively thin and light small packages, such as cards and instruction leaflets.

Modern sachet inserters are mostly equipped with intelligent detection systems that can automatically detect whether insertion has occurred and whether it was successful. If issues such as missed insertion or over-insertion occur, the equipment automatically alerts and can even automatically reject non-conforming products, ensuring packaging quality.

Sachet inserters have a wide range of applications and are used in food, pharmaceutical, daily chemical, electronics, and other industries. For example, desiccants and oxygen absorbers in food packaging bags, instruction leaflets in medicine boxes, warranty cards in electronic products, and more can all be inserted using sachet inserters. With the continuous improvement of automation levels, the role of sachet inserters will become increasingly important.