What is the difference between a dispensing machine and a glue filling machine?

In the field of automation equipment, both dispensing machines and glue filling machines are common devices for fluid control, and they play an important role in many industries such as electronics, automobiles, and home appliances. However, many people are often confused when facing these two devices, and they don't know what the difference is. Shenzhen Xiaomao Automation Technology Co., Ltd., as a professional supplier of automation equipment, will analyze the differences between dispensing machines and glue filling machines in detail today.

Working principle and applicable glue
The dispensing machine mainly uses compressed air to press the glue into the feed pipe connected to the piston chamber. When the piston is in the upstroke, the piston chamber is filled with glue; when the piston pushes the glue needle downward, the glue is pressed out from the needle nozzle. It is suitable for various low-viscosity to medium-high-viscosity glues, such as instant glue, anaerobic glue, UV glue, etc., and performs well in handling glue with good fluidity.

The glue dispensing machine uses precision metering devices such as metering pumps or gear pumps to accurately measure the AB glue in a certain proportion, transport it to the mixing chamber for full mixing, and then pour the mixed glue into the product through the glue outlet. It is better at handling high-viscosity, two-component glues, such as epoxy resin glue and polyurethane glue, to ensure that the glue is evenly mixed and meet application scenarios with high glue performance requirements.

Glue output and precision
The glue dispensing machine usually has a relatively small glue output and high precision, and can achieve micro-dispensing operations. In some fields such as electronic component packaging and precision instrument manufacturing, which have extremely strict requirements for glue quantity control, the glue dispensing machine can accurately apply glue to the specified position to ensure the quality and performance of the product. For example, in the process of mobile phone chip packaging, the glue dispensing machine can accurately apply glue between the chip and the circuit board to play a role in fixing and insulating.

The glue dispensing machine has a large glue output and is mainly used for large-area encapsulation of products. Although its precision is slightly lower than that of the glue dispenser, the glue dispenser can efficiently complete the task in scenarios where large products are processed or a large amount of glue filling is required. For example, in the potting process of the power adapter, the glue dispenser can quickly fill the entire adapter shell with glue, which plays a role in waterproofing, moisture-proofing, dust-proofing and insulation.

Application scenarios
The application scenarios of the glue dispenser are very wide, covering multiple industries such as electronics, optoelectronics, medical, and automobiles. In the electronics industry, it is often used for PCB board dispensing, electronic component fixing, LED packaging, etc.; in the medical industry, it can be used for the assembly and sealing of medical devices. Due to its high precision and flexibility, the glue dispenser is suitable for production links with high requirements for product details.

The glue dispenser is more used in products that require overall potting, such as electronic components such as transformers, relays, capacitors, as well as some outdoor electronic equipment, automotive parts, etc. Through glue filling, the waterproof, moisture-proof, and shock-proof properties of the product can be improved, and the service life of the product can be extended. In some harsh environments with high requirements for product protection, the role of the glue dispenser is particularly prominent.

Equipment structure and operation
The structure of the dispensing machine is relatively simple, with a small size and small footprint, making it easy to move and install. The operation is also relatively simple. Generally, the dispensing parameters, such as dispensing time, glue output, dispensing speed, etc., can be set through the touch screen or control panel. The operator can get started after simple training.

Since the glue filling machine needs to handle the metering, mixing and filling of two-component glue, the equipment structure is relatively complex, usually including the glue supply system, metering system, mixing system, control system and other parts. The operation process is relatively complicated, and the operator needs to have certain professional knowledge and skills to ensure the accurate metering and uniform mixing of the glue.

In summary, there are obvious differences between the dispensing machine and the glue filling machine in terms of working principle, applicable glue, glue output and accuracy, application scenarios, equipment structure and operation. When choosing equipment, enterprises should make comprehensive considerations based on their own production needs, product characteristics and glue types. Xiaomao Automation has rich experience in the research and development and production of automation equipment, and can provide customers with professional dispensing machine and glue filling machine solutions to help enterprises improve production efficiency and product quality.