Recently, many customers have reported that when packaging bags with concave-convex textures, ordinary suction cups often have problems with slipping bags and air leakage. As a front-line technician in a packaging machine factory, let's talk about how to optimize the selection and layout of suction cups for this type of special bag.
Let's look at the suction cup selection first - material and structure are the key
The surface of the concave-convex texture packaging bag is not as smooth as the smooth bag, and the traditional flat suction cup is prone to uneven force when adsorbing. After testing more than a dozen materials, our factory found that the silicone suction cup with a particle anti-slip coating has the best adsorption effect. This material not only has strong grip, but also fits the ups and downs of the concave and convex surface to reduce the probability of air leakage.
In addition, the suction cup structure must also be "adapted to local conditions". For example, for bags with deep textures, we will recommend customers to use bowl-shaped suction cups with auxiliary grooves, which can disperse the vacuum pressure; and for bags with shallow textures, corrugated edge suction cups can take into account both efficiency and cost.
Layout optimization - don't let the suction cups "fight alone"
After choosing the right suction cup model, the layout must also keep up. Last year, when we renovated the production line for a nut factory, we found that they originally arranged the suction cups evenly in a row, and as a result, wrinkles were always sucked out in the middle of the bag. Later, we switched to a flexible fixture layout of "center symmetry + edge reinforcement", so that the outer suction cups were equipped with two more sets than the middle, and the adsorption stability was directly improved by 40%.
Here is a little experience: before layout, use simulation software to run the suction distribution map, focusing on the highest and lowest points of the concave and convex surface. If adsorption fails frequently in a certain area, you can try to increase or decrease the number of suction cups or adjust the tilt angle.
Don't let down the chain in daily maintenance
No matter how good the suction cup is, it is afraid of wear and tear, especially when dealing with bags with rough textures. We recommend that customers check the edge of the suction cup every quarter. Once the anti-slip coating is found to be detached, it should be replaced immediately, otherwise the adsorption force will drop drastically. A customer who makes pet food followed the maintenance manual we provided, and the service life of the suction cup was extended from half a year to one and a half years.
Recently, our factory has also launched a vacuum suction cup customization service. Customers send sample bags, and we can replicate the matching suction cup set 1:1. Last month, we just helped a cosmetics factory solve the problem of grabbing lace packaging bags. The customer said that the current production capacity per minute is 15 bags more than before.
Summary: The core of the selection and layout of the suction cup for concave and convex texture packaging bags is "the right medicine for the right disease". From the anti-slip property of the material to the flexibility of the layout, every detail affects the packaging efficiency. Our factory has accumulated more than ten years of practical experience in this area. If you are also worried about special bag types, please feel free to talk to our technical team!
