Suzhou Oushida Hot Melt Machinery Equipment Co., Ltd.

Oushida|What are the gluing methods of PUR hot melt adhesive machine?

Company Profile

Suzhou Oushida Hot Melt Adhesive Machinery Equipment Co., Ltd. is a high-tech enterprise specializing in the research and development, production, sales and technical consulting of hot melt adhesive intelligent spraying equipment.

There are two types of PUR hot melt glue machines, one is the melting cylinder type and the other is the pressure plate type. At present, the melting cylinder type PUR hot melt glue machine is basically outdated. The more popular one is the pressure plate type PUR hot melt glue machine. Today we are going to talk about the gluing method of the pressure plate type PUR hot melt glue machine.

First, let's understand the working principle of the pressure plate type PUR hot melt glue machine. The heating part of the pressure plate type PUR hot melt glue machine is an aluminum alloy heating plate. When in use, the heating plate is pressed into the glue barrel from top to bottom. The heating plate is located above the glue. When the heating plate is heated, only the upper layer of glue contacts the heating plate, so that it reaches the melting point and melts. The glue in the lower part of the glue barrel is not heated at this time. The amount needed during production is melted as much as needed to avoid aging and deterioration of the glue due to long-term heating. The glue is isolated from the air when melting glue:There is an O-ring seal between the heating plate and the inner wall of the glue barrel, so that the molten liquid glue will not come into contact with the air, ensuring the use conditions of PUR hot melt adhesive. The pressure plate is made of aluminum alloy precision casting and CNC precision processing. The outer surface of the heating plate is treated with DuPont Teflon deep penetration sintering, which has the advantages of high coating strength and not easy to fall off. The glue on the heating plate is very easy to remove, which can effectively prevent the carbonization of the glue, ensure the best glue quality, and reduce the blockage of the glue delivery system.The gluing method of the platen glue machine is determined by different adhesive materials and hot melt glue guns. During operation, the melted pur hot melt glue is stirred and pressed by the gear pump into the hot melt glue tube, and finally flows out through the hot melt glue gun to the bonded object. The same pur hot melt glue machine can achieve a variety of gluing methods by replacing different hot melt glue guns. The pur hot melt glue machine has a variety of gluing methods: rolling glue, dispensing glue, spraying glue, coating glue, etc.

1. Rolling glue usually uses roller grooves and strip guns. First, the glue flows into the roller groove, and the PUR hot melt glue in the roller groove is evenly rolled on the surface of the bonding object by the rotation of the roller. It is used in large-area gluing processes, such as fabric lamination and large-plate flat lamination;

2. The point glue method usually uses a strip glue gun or a point glue gun. The PUR hot melt glue is dotted on the bonded object according to a certain path. This gluing process is often used in electronic appliances, etc.;

3. The spray glue method usually uses a spiral spray gun and a fiber spray gun. The amount of glue sprayed by the spray gun is very small and very uniform. It is often used in small and irregular gluing processes, such as shoe soles, car interiors, etc.;

4. The gluing method usually uses a scraper gun. This gluing method requires a large amount of glue and is often used in fabric lamination, etc.

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