The importance of compound pressure of Hydraulic Die Cutting Machine
Hydraulic Die Cutting Machine composite pressure is too large or uneven pressure at both ends of the composite roll, will cause the composite film surface wrinkles, composite wrinkles at the formation of empty tunnels, affecting the finished product fastness.
(1) to improve the amount of glue, Hydraulic Die Cutting Machine too little coating or part of the substrate surface is not coated with adhesive, will lead to composite when the two base is difficult to fit. We can use the deeper web of the anilox roller, or by increasing the rubber roller pressure and reduce the scraper and the anilox roller contact pressure to increase the amount of substrate surface coating. For some plastic film substrate, can be carried out before the corona treatment, so that the surface of wool HP, thereby enhancing the ability of the substrate to absorb adhesives, so that the amount of surface coating increased.
(2) the choice of the appropriate drying temperature is too high or too low, Hydraulic Die Cutting Machine will affect the composite film adhesion fastness. When the coating substrate is dried, the heating temperature is too high or after high temperature cooking, the surface layer of the adhesive is carbonized, thereby destroying the adhesive capacity of the adhesive. Drying temperature is too low manufacturers information, the adhesive curing is not complete, the viscosity of the adhesive is poor, composite is not strong and after a period of time, the composite film is easy to form bubbles, destruction of the composite quality of the product. Of course, we can choose high temperature and resistance to cooking good adhesive digital printing presses to meet the high temperature drying, such as the use of polyurethane adhesive.
(3) the appropriate increase in composite pressure, Hydraulic Die Cutting Machine composite pressure is too large or uneven pressure at both ends of the composite roll, will cause the composite film surface wrinkles, composite wrinkles formed after the empty tunnel, affecting the finished product fastness. Appropriate increase in composite pressure is beneficial to improve the composite adhesive force. In addition, in order to improve the bonding effect of composite film and quality dairy packaging, to try to avoid foreign matter, dust and other debris attached to the adhesive or composite substrate surface. Concluding remarks operation, we must carefully observe the production process of the various problems and failures, the rational use of the above methods to troubleshoot. When there are multiple problems or failures, the use of a single method may not be able to take into account, this time should be avoided.
Hydraulic cutting machine installation safety matters
1, the installation of Hydraulic Die Cutting Machine, you must connect a correct and effective ground wire. Any equipment that uses high-voltage equipment requires a ground wire. When the ground wire is not used, it is still possible to form a voltage conductor and the risk of electric shock when there is an insulator-protected component on any Hydraulic Die Cutting Machine.
2, according to the Hydraulic Die Cutting Machine and its subsidiary peripheral equipment required to check the use of power lines, and insulation protection is in line with the provisions of the wire load must be higher than the rated power of Hydraulic Die Cutting Machine.
3, to ensure that the outside world connected to the Hydraulic Die Cutting Machine voltage is in line with the Hydraulic Die Cutting Machine itself, such as single-phase 220v voltage standard Hydraulic Die Cutting Machine equipment if the use of 380V power supply will damage the Hydraulic Die Cutting Machine spraying equipment, such as single 220v voltage standard Hydraulic Die Cutting Machine equipment If you use less than 220V power supply, can not achieve the equipment design performance, may also damage the Hydraulic Die Cutting Machine, wiring should ensure that the power cord is properly connected to the outside of the broken electrical position The
4, to ensure that the Hydraulic Die Cutting Machine in the specified voltage operation, if the voltage used is different from the specified, may cause the Hydraulic Die Cutting Machine was burned.