What are the differences between gluing machines and hot melt glue machines?Frequently Asked Questions
What are the differences between gluing machines and hot melt glue machines? Frequently Asked Questions
Hot melt glue machines are used in industries like packaging, construction, and automotive. They also serve as auxiliary equipment for packaging production and are a type of machine-assisted gluing equipment. While hot melt glue machines and glue sprayers are still the most commonly used, gluing machines are also used in applications like wallpaper wrapping. So, what are the differences between gluing machines and hot melt glue machines?
- Hot melt glue machines are mechanically used to melt hot melt glue, converting the solid hot melt into liquid glue. The glue can be applied to the product in various shapes, such as dots, strips, or mist. They have a wide range of applications, including automotive, packaging, and garment self-adhesive labeling. Gluing machines, on the other hand, are primarily used as auxiliary equipment in the production of cartons, leather goods, and footwear, primarily to complete the gluing process during the lamination process.
- A hot melt adhesive machine works by adding hot melt adhesive to a melting tank, melting the adhesive in a heated tank, heating the adhesive delivery hose and coating device, activating a pressurizing device to deliver adhesive, and then activating a coating device for spraying according to process requirements. A gluing machine, on the other hand, primarily uses hot melt adhesive in a reservoir, which is then passed through a hot melt adhesive carbon cloth laminating machine and then rotated by a roller. The material to be glued passes through this roller, where the hot melt adhesive on the roller is naturally and evenly applied to the material to be bonded.
- Using a hot melt adhesive machine poses certain safety risks. There are many things to be aware of when operating a hot melt adhesive machine. Improper operation or insufficient maintenance can easily lead to uneven adhesive spraying and stringing. A gluing machine, on the other hand, uses a roller to apply adhesive, which is simple to operate, even, and eco-friendly, without wasting glue. The glue is quickly and neatly cut off, and the hot melt adhesive gun can be controlled with a timing device for precise glue cutoff.
Hot melt adhesive machines are prone to some issues during use. These are common and are caused by the following factors:
- Using substandard melamine as the edge banding material releases substances that cause debonding. Some substandard PVC edge banding primers are incompatible with hot melt adhesive, causing friction when the two come into contact, leading to debonding.
- Oily veneer edge banding does not adhere to hot melt adhesive, and hot melt adhesive cannot be absorbed into the oil without a three-axis dispenser.
- The hot melt adhesive cools during the bonding process, preventing it from bonding after the temperature drops.
Reasons for hot melt adhesive cooling during the bonding process:
- The adhesive is heated too briefly during bonding, preventing it from reaching the bonding temperature.
- The operating temperature of the hot melt adhesive machine is set too low.
- Insufficient adhesive application can also cause this problem.
- The operating temperature of the hot melt adhesive machine is too low.