How To Choose The Dispensing Needle Of The Dispensing Machine
Jul 22, 2022
It can be selected according to the size of the glue point, which can be roughly divided into four steps; Fine point - the specification of the needle is too small will cause low pressure, short dispensing time; The size of the needle is too large, the air pressure is also relatively large, the dispensing time can be set according to requirements;
The glue viscosity is high - the pressure of the cone inclined needle is relatively large, and the dispensing time can be set according to the requirements;
Poor glue viscosity - the general use of needles is relatively small, the need for air pressure is relatively small, dispensing time can be set according to requirements.
Generally speaking, the selection of dispensing needles should be from small to large, the dispensing efficiency can be from fast to slow, and the air pressure setting is also from small to large. In particular, the glue with better fluidity can be selected first according to the thin needle, and finally gradually increase the pressure, the speed from fast to slow.
According to the special properties of glue, viscosity, and chemical properties to select:
UV glue: you can use amber syringes, white pistons and oblique needles to choose, of course, you can also use other types of needles on request, but also through custom to complete the required needle.
Quick drying glue: the glue with poor viscosity can be applied to safety piston and Teflon lined metal dispensing needles. For quick drying glue, it must be applied to taper inclined needles. If there is a special need, it can also be applied to PP needles.
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