When the fender is not working, the temperature of the glue tank must be reduced to about 150 °C. On the one hand, it can ensure that the hot melt glue does not produce carbonization at the operating temperature for a long period of time, and that the glue tank is kept clean, and it will not cause blockage of the glue supply system. And reduce heating performance; On the other hand, when working again, it can quickly heat up the plastic tank to the operating temperature. In addition, 2/3 of the glue must be maintained in the plastic tank, otherwise it will produce black charcoal around the plastic tank.
To regularly clean up the canister and coated roller, the excess carbon and residue around the canister will reduce the performance of the heating system and the rubber supply system.

If you want to remove the remaining glue in the plastic tank, you can put a T-shaped object into the glue before the sealing machine stops working and the glue is still in a melting state. When the glue is completely cooled, it is reheated. Since the glue on the bottom and around the plastic tank is first heated and melted, most of the remaining glue can be removed with T-shaped material. The residual gum is then cleaned with a 1:1 mixture of toluene and methylene chloride.

The quality of the sealing edge is affected by many factors, including equipment conditions, operating proficiency, raw material conditions, etc.. Generally, the following aspects should be noted:
1. The moisture content of solid wood sealing materials should not be too high. It should be stored in a cool and dry room. The base material requires no dust, and the optimal moisture content is 8-10 %.
2. Due to the fast sealing speed, adhesives must have good dispersion and permeability to the substrate under low pressure, and they must have good initial viscosity. They should be instantly glued and bonded under a short period of pressure. When using, care should be taken to ensure that the temperature of the hot melt glue is within the normal temperature range, and a long period of high temperature will make the glue score; Hot melt glue can not achieve good fluidity at low temperatures, and it must be used with good data provided by suppliers.
3. The amount of hot melt adhesive coating should be based on making the adhesive parts slightly extruded from the outside. It is too large and there is a black line at the sealing edge, which affects aesthetics; Too small, not enough bonding strength. In order to check whether the film is continuous, transparent hard PVC can be used to bring the test; It can also be used to seal the edge of the ordinary edge, and when the adhesive is not cooled, the edge belt can be torn off to test.

4. The indoor temperature must not be too low during processing. Generally, it should be above 15 °C. In particular, when the sealing band is thick, the flexibility will be insufficient. It is necessary to ensure that the preheating device works normally. If there is no preheating device, the sealing band can also be softened by means of hairdryer heating. The Fangfayouqi is suitable for curve sealing. There shall be no customs in the processing shop.
5. The quality of the sealing edge belt affects the sealing effect. The quality of the sealing edge belt seals the tight sealing edge of the product, and the quality of the sealing edge belt seals the gap at the sealing edge of the product. There is a clear black line. When the machine is repaired, it is easy to scratch traces on the surface. From the section of the thick edge belt, the middle of the adhesive surface should be slightly concave than the two sides. The sealing edge of the product sealed by the edge belt is more rigorous and has better results.
6. For the use of the front milling cutter device of the sealing machine, the quality of the semi-finished product to be sealed also affects the sealing effect. In order to prevent the product from breaking the edge, the general manufacturer will use an engraved saw(commonly known as a small saw blade) when cutting. The best effect after cutting is that the small saw blade can be seen at the section but can not feel it. When the small saw blade marks are too deep to seal the edge, a black line can be seen at the edge and even a gap can be seen. It is too shallow and explosive.

7. When sealing the edge with a thick sealing edge, the sealing machine press roller should be tightened to the best position. The most common problem is to press too tight. Since the sealing band is slightly longer than the workpiece, when the press roller presses the sealing band to grow out of the part, a vertical Yujin force is brought to the sealing edge. At this time, due to the incomplete curing of the adhesive, the adhesive strength is not high. The tail is easy to loosen and sticky.