What are the manufacturing processes and applications of paper tubes?

1, information paper cutting

Determine the sandpipe paper with uniform thickness, low moisture content and smooth appearance as the main paper, and select impregnated paper as the face paper; According to the specifications and sizes required for manufacturing high-end paper tubes in Dongguan, the paper with large rolls of sand tube paper and large rolls of paper are put into a slitter to be slit, and the paper tape with the required size is obtained.

2. Coil

Winding the bonded paper tape into a tube shape on a movable pipe winder; .

3. Rough cutting

Put the high-grade paper tube in Dongguan on the paper tube coated with resin, pass through the air dryer at a uniform speed, and roughly cut it into paper tube sections with a certain length;

Step 4: Fine cutting

The extruded paper tube is roughly cut according to the required specifications, and the end face of the cut paper tube is chamfered, coated, treated and packaged to complete the production of high-grade paper tube with seamless appearance.

5, paper tube drying

Put the roughly cut paper tube into the drying room and dry it in sections until the water content of the paper tube is lower than 10%.

6. Stick the paper tape with glue

The method comprise that following step of: sequentially overlapping a plurality of layers of slotted main pap tapes and tissue tapes from top to bottom, and placing the layers on a paper tape gluing machine in parallel, and uniformly coating a layer of special glue for paper tubes on the upper surfaces of the main paper tapes and tissue tapes;

7. Extrusion molding

Arranging the dried paper tube sections and cooling them to room temperature, then putting them into a molding die preheated to 150-280℃ one by one for internal extrusion molding, so as to fully cure the resin coated on the outer surface of the paper tube; The molding temperature of the mold is 150-280℃

8, groove details processing

Put the surface paper tape into the beveling machine and bevel the details on both sides of the paper tape.