JCT Machinery, produce chemical mixer since 2006.
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JCT Machinery, produce chemical mixer since 2006.
The molten glue flows to the cooling part through the pipe or the outlet, and is usually cooled and molded in the following ways:
1. Cooling Belt: Hot melt glue liquid is quickly cooled belt to form a thin layer of solid adhesive film. The cooling belt is usually a wide metal belt with cooling water or air cooling system. The solidification speed and thickness of the adhesive film are controlled by adjusting the belt speed and cooling temperature. The length and cooling effect of the cooling belt directly affect the quality of the hot melt glue particles.
2. Cooling Trough (Water Cooling Trough): When hot melt glue liquid passes through the cooling trough, the water flow will quickly cool the glue liquid to form a solid glue strip or block. The cooling medium of cooling trough can be water or liquid cooling oil. The specific medium to be used depends on the thermal stability of the hot melt glue and the production process requirements.
The cooled hot melt glue strips or hot melt glue blocks are fed into the cutting system and cut into granules. Common cutting methods are:
1. Water Ring Pelletizer: The cooled hot melt glue strips are cut into granules by a cutting machine. During the cutting process, a water ring or water flow is usually used to help the glue block cool quickly and form uniform granules.
2. Hot Knife Cutting: The cooled hot melt glue strips are cut into granules by a heated knife. This cutting method is suitable for relatively brittle glue blocks and can ensure the smoothness of the cutting edge.
3. Air Knife Cutter: The cooled glue strips are cut into granules by high-pressure airflow. This method can cut more efficiently and is suitable for large-scale production.
The cut hot melt glue granules are often screened by a vibrating screen or a rotary screen to remove granules that do not meet the specifications, such as particles that are too large or too small. The granules after screening are uniform in size and meet the production and use standards. The screening system usually consists of multiple screens and can perform multi-level screening to ensure the quality and size consistency of the final granules.
The final qualified hot melt glue granules will be sent to the packaging system through the discharge port. Common packaging methods include bagging, barreling, etc., and quantitative packaging machines can be set up according to production requirements to complete automatic packaging.
1. Melting Stage
Hot melt glue raw material is fed into a melting reactor or melting tank, heated to a suitable melting temperature, and a molten glue liquid is formed.
2. Forming and Cooling Stage
The molten glue liquid enters the cooling belt or cooling tank through a pipeline, gradually cools and solidifies into glue strips or blocks in the cooling system.
3. Cutting Stage
The solidified glue strips or blocks are cut by a cutting system and divided into granules of a specified size.
4. Screening Stage
The cut granules are screened and graded by a screening device to remove unqualified granules and ensure the uniformity of the granules.
5. Discharging and Packaging Stage
Qualified granules enter the packaging system through the discharging port for automatic metering and packaging.
We are professional mixing manufacturer, providing sigma mixer, reactor, dual shaft mixer, etc .
