In the dual PC numerical control system, the CNC machining program is programmed according to the machined parts, and the user can modify it at any time. The main task of this module is to compile the NC machining program and calculate the tool radius compensation at the same time. In this way, it can be converted into a corresponding action of the numerical control actuator, and finally a qualified product is processed. CNC machining programs are generally in the form of source code, that is, stored in ASCII format, the purpose of which is to facilitate programming. The compiler first misidentifies the NC machining program, and the recognition types include syntax, G code instructions, and misrecognition of irregular characters. If there is an error, the error line number and the cause of the error should be indicated. The subsequent conversion work is performed only if the NC code is accurate. The key technology is the design of this module, construct a data structure stored optimum code, calls for an interpolation program loop. Generally, both structural arrays and structural chains are used. If the structure array mode is adopted, in order to satisfy the maximum file length, the memory length will be a waste when the file length is short. Thus, the best use of linked list structure, the structure having front and rear pointers. The dynamic application memory requirements of each code, and if not, then deleted dynamically, so as to achieve an optimal design. The control system needs to be sealed cabinet, all the control signals of industrial control using optical isolation, to avoid signal interference. The system can display all Chinese, full screen editor, NC code syntax errors automatically detects errors in real time and various operation Chinese prompt, simple, easy to process the surface of various shaped stone and the like. (Finish) Furniture edge sealing glue can be divided into three categories according to the different base materials:
HMPU (polyurethane) base material hot melt adhesive, it is a kind of hot melt adhesive with the best performance, and it is the guarantee of high quality sheet edge sealing. It is expensive and requires special usage.
The performance of furniture edge sealant
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EVA (ethylene-vinyl acetate copolymer resin) base material hot melt adhesive, this hot melt adhesive can be divided into two types with filler and without filler. Using EVA as the base material is the most common production technology for furniture edge sealing adhesives, and its main limitation is poor heat resistance. The ambient temperature of panel furniture sealed with EVA hot melt adhesive shall not be higher than 120°C;
POL YAMIDE (polyamide) based hot melt adhesive, this hot melt adhesive has good heat resistance and fast curing characteristics, the main disadvantage is that it is expensive.
1. Viscosity of furniture edge sealant
The viscosity of furniture edge sealing glue does not directly reflect the performance of the glue. In general, the higher the viscosity of the furniture edge sealant, the better its initial tack strength, but the worse the coating performance. Low-viscosity hot melt adhesives have a smaller amount of glue and better wetting properties. Some hot melt adhesives with low viscosity and fast curing speed may also have high initial tack strength.
2. Density of furniture edge sealing glue
The density of furniture edge sealant is generally 0.95-1.6g/cm3, and its density depends on the amount of filler.
3. Softening point and use temperature of furniture edge sealing glue
The softening point is an indicator of the heat resistance of the furniture edge sealant. The higher the softening point, the less likely the furniture edge sealant will melt. At the same time, softening point is also an important aspect to measure the temperature resistance of panel furniture.
4. The opening time of the furniture edge banding glue and the feeding speed of the edge banding machine
Furniture edge sealant is widely used in the market because of its solvent-free, water-resistant, and environmental-friendly features.
