What Is Automated Dispensing?

Automatic dispensing machine is a professional equipment instead of manual dispensing, which has a wide influence in the industry. In industrial production, many places need to use dispensing, such as integrated circuits, semiconductor packages, printed circuit boards, color LCD screens, electronic components (such as relays, speakers), electronic components, automotive parts, and so on. Traditional dispensing is achieved by manual operations by workers. Dispensing processes are becoming more and more demanding in industrial production. Traditional dispensing is performed manually by workers. With the rapid development of automation technology, manual dispensing has been far from meeting industrial requirements and is gradually being replaced by automatic dispensing machines. Automatic dispensers are widely used in industrial production, such as integrated circuits, printed circuit boards, electronic components, automotive parts, handbags, and packaging boxes. The application of automatic dispensing machine has greatly improved production efficiency, improved product quality, and can achieve some processes that manual dispensing cannot complete. To the extent of automation, the automatic dispenser can achieve three-axis linkage and intelligent work.

With the rapid development of automation technology, manual dispensing has been far from meeting industrial requirements. Manual dispensing has complex operation, slow speed, low accuracy, error-prone, and can not operate complex graphics, let alone achieve

The production of automatic dispensers dates back to the 1960s.

Automatic dispensing machine is to place a special glue in advance on the PCB board where the chip needs to be fixed to fix the chip components, and then pass through after curing

Automotive mechanical parts coating, cell phone button dispensing, cell phone battery packaging, laptop battery packaging, coil dispensing, PCB board

Silicone, EMI

1. Tubular rotary glue dispensing control; ordinary, digital

With the lightweight of handheld electronic products, the requirements for the core dispensing technology in the electronics industry are becoming higher and higher. In a series of industrial applications, such as high-power LED dispensing (ie SMD dispenser), or UV Dispensing / coating flexible circuit board Dispensing technology has also been further upgraded. The emergence of micro-injection technology for high-viscosity fluids is an obvious example. The principle of micro-injection of high-viscosity fluids is similar to the movement process of a pneumatic pump. The spray technology has been very successful in the application of UV curing adhesives (UV dispensing / spraying) to electronic devices.

Dispensing jet technology uses a piezo rod as an excitation component in a semi-closed cavity. This cavity is open for the dispensing supply of solder paste feed, and the supply line uses a rotary positive displacement pump (RPDP). When the material is pressed into the cavity, piezoelectric standing wave motion launches the material out of the nozzle as dimensionally stable droplets at a speed of up to 500 droplets per second.

Mechanical ejectors work in a unique way, introducing fluid into the material cavity at a relatively low pressure. Generally, the pressure of the filler under the chip is less than 0.1 mPa, and the pressure of low viscosity materials such as liquid crystal is about 0.01 mPa. A mechanical ejector creates pressure in a fluid by motion and ejects it. The droplets ejected are determined by the nozzle size, ball size, and bevel shape. The advantage of this technology is that high local pressure can be obtained at the nozzle position, which can eject those fluids with high viscosity. The disadvantage is that the nozzle size used is much larger than the piezoelectric or thermal inkjet technology. However, when spraying adhesives or dispensing other common materials for electronic packaging, such as under-chip fillers, epoxy resins, fluxes, surface-mount adhesives, and liquid crystals, mechanical dispensing sprayers have been very good application. Although this technology does not use a dispensing needle or a syringe barrel, almost every fluid material involved in the field of electronic assembly can be automatically dispensed by this technology ^[2] .