Glue dispensing machine, also known as glue filling machine, glue dispensing machine, etc., is an automated equipment specialized in controlling fluids and applying, coating, and sealing liquids onto the surface or inside of products. Glue dispensing machines are mainly used in industries such as electronics, machinery, LCD, etc. They not only save labor costs, but also achieve automation and precision, effectively improving product quality.

The working principle of the dispensing machine:

The glue dispenser sends compressed air into the glue bottle (syringe) and presses the glue into the feed tube connected to the piston chamber. When the active cold outer dry strokes up, the piston chamber is filled with glue. When the piston pushes down the dispensing needle, the glue is pressed out from the nozzle. The amount of glue dripped is determined by the displacement of the piston, which can be manually adjusted or controlled in software. The dispensing machine is mainly composed of three major systems: the actuator, the driving device, and the control system. The actuator of the dispensing machine is mainly responsible for performing dispensing operations, and the driving mechanism can help the actuator achieve more precise and high-quality dispensing, which of course also depends on a scientifically reasonable control system. Below is a detailed introduction for everyone.

1、 Executing Agency

The actuator of the dispensing machine is mainly composed of two parts: the robotic arm and the torso. In order to cooperate with the operation of robotic arms, commonly used actuators include linear hydraulic cylinders, swing hydraulic cylinders, electro-hydraulic pulse motors, servo hydraulic motors, AC servo motors, DC servo motors, and stepper motors. The body of the dispensing machine is the main body of the dispensing machine, including the installation arm, power source, and various actuator brackets, all of which belong to the body category of the dispensing machine.

2、 Drive device

There are four main types of driving devices, namely hydraulic drive, pneumatic drive, electrical drive, and mechanical drive. Among them, the electric and pneumatic drives, with their advantages of low glue consumption, convenient gas source, simple maintenance, and low price, occupy about 90% of the entire dispensing machine market share.

3、 Control system

The last thing to say is the control system. In order to ensure that the dispensing operation is simpler, faster, and more precise. The control system of the dispensing machine is equipped with a motion control card, offline conversion board, handheld teaching box, serial port cable, interface cable, software dog, offline liquid product, offline keyboard, and thin code switch dispensing program. The advantage of this assembly is that the files are easy to download and the data management is convenient. Glue dispensing machines can be divided into two working modes:

1. Manual dispensing: The principle of using a manual dispensing machine to dispense glue on electronic products is simple and cost-effective. The disadvantage is that the dispensing efficiency is slow and it consumes a lot of labor.

2. Automatic dispensing: The principle of LCD dispensing machine is to use air pressure to push out the adhesive liquid within a set time. The instrument controls the drip time each time to ensure that the drip volume is the same. As long as the air pressure, time, and appropriate nozzle are adjusted, the drip volume can be easily changed each time, making it convenient and accurate. Glue dispensing machines have high speed and low sensitivity to adhesive viscosity, which can accelerate dispensing speed, improve dispensing environment, and enhance dispensing quality. They are indispensable production equipment in many industries. The dispensing machine has the flexibility of no fixed limit on the diameter of the adhesive dots, which can be adjusted through software. However, when dripping large adhesive dots, the screw rotation time is long, which will reduce the overall output of the machine. In addition, the viscosity and flow characteristics of the adhesive will affect its stability.