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The difference between spraying glue and scraping glue of hot melt glue applicator
Mar 23 , 2023
There are many kinds of glue spraying methods for hot melt glue machines. Some industries need glue spraying effects, and some industries need glue scraping effects. These are all selected according to the customer's process requirements. The hot melt glue guns used for glue spraying and squeegeeing of hot melt glue machine equipment are different, see the picture below: Where is the specific diff...
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Hot melt adhesive carbonization causes and avoidance measures
Mar 30 , 2023
Everyone who uses a hot melt adhesive machine knows that there will be a layer of black material around the glue tank after the hot melt adhesive machine has been used for a long time. These are the carbides of the hot melt adhesive. How are these carbides formed? What should we do to avoid excessive carbides in hot melt adhesives? In fact, the generation of carbide mainly has the following points...
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How does the automatic hot melt glue machine work?
Apr 10 , 2023
The hot-melt adhesive system uses a glue pump to heat the turns adhesive into a liquid state and then establish a stable pressure and temperature. It is transported to the spray gun through the throat, and the opening of the nozzle is controlled by a solenoid valve, so that the hot-melt adhesive can be sprayed from the nozzle to the on paper for bonding purposes. How to choose a hot melt adhesive ...
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Why does the pressure of the hot melt adhesive machine become unstable during use
Oct 18 , 2023
Hot glue machines are widely used in various industries, and their unique advantages greatly facilitate production and bring huge profits to enterprises. All hot melt adhesives on the market today comply with national environmental protection requirements. There are many types of hot melt adhesives. Different types of hot melt adhesives are used according to different bonding requirements, and dif...
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Why is it not recommended to mix hot melt glue?
Nov 03 , 2023
Each adhesive has specific properties. Even if hot melt adhesives look the same, that doesn't mean they have the same chemical structure. 2 reasons why mixing is not recommended 1. Clogging of hoses and hot melt glue guns Suppose you change from a hot melt adhesive that is used at 150-170°C to one that is used at 130-150°C. What happens if you mix new hot melt glue into the old glue in the glue ta...
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What problems may occur during use of the hot melt glue box sealing machine?
Nov 16 , 2023
Hot melt glue carton sealing machine is an automatic or semi-automatic packaging equipment that is upgraded and transformed on the basis of packaging machine. It can automatically complete glue spraying, ear folding, sealing, etc. The hot melt glue box sealing machine uses an automatic glueing method to glue the folded sides of the carton. It is suitable for gluing a variety of carton sizes. It ha...
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Entering winter, you need to know about these operations of hot melt adhesive machines
Nov 20 , 2023
1.As the temperature gradually drops in winter, some customers have experienced poor adhesion, brittle hot melt adhesive, and degumming when using hot melt adhesive for production. What is the reason? Hot melt adhesive is sensitive to ambient temperature. Due to the cold temperatures in winter, the hot melt adhesive bonding process is cold, resulting in rapid solidification and hardening. Some glu...
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Factors affecting the glue coating effect of PUR hot melt glue machine
Jan 24 , 2024
PUR hot melt adhesive (Polyurethane Reactive) is a new type of one-component, solvent-free hot-melt structural adhesive. It is cured by moisture in the air and has excellent bonding strength and impact resistance after complete curing. It also has With excellent bonding strength, temperature resistance, chemical corrosion resistance and aging resistance, it has become the best adhesive for bonding...
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Why hot melt adhesive cools before bonding
Mar 26 , 2024
The hot melt adhesive cools before bonding. The reasons and solutions are as follows: (1) The use temperature of hot melt adhesive is low → increase the use temperature; (2) The opening distance is too long → reduce the opening distance; (3) The conveyor belt speed is too slow → increase the conveyor belt speed; (4) The amount of glue applied is not enough → increase the amount of glue applied; (5...
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