Introduction to the Composition and Control of Gluing Machine

The HOLS (Suzhou) glue dispenser is mainly composed of three main parts: the actuator, driving device, and control system, none of which is indispensable.

1、Executive agency

It mainly consists of two parts: a robotic arm and a torso. In order to cooperate with the operation of the robotic arm, the so-called linear hydraulic cylinder, swing hydraulic cylinder, electro-hydraulic pulse motor, servo hydraulic motor, AC servo motor, DC servo motor, and stepper motor are generally selected as execution mechanisms. The torso is the main part of the glue dispenser, including the installation of arms, power sources, and various brackets for actuators, all of which belong to the category of the torso

2、the driving device

The driving devices are mainly divided into four types, namely hydraulic drive, pneumatic drive, electrical drive, and mechanical drive. Among them, electric drive and pneumatic drive occupy about 90% of the market share of the entire glue filling machine, relying on advantages such as low glue consumption, convenient air supply, simple maintenance, and low price

3、Control System

In order to ensure simple, fast, and accurate dispensing operations, the control system 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

Control method for adhesive amount:
The control of adhesive amount is very important because it directly affects the quality of product adhesive points, etc. To accurately control the dispensing amount of the glue dispenser, it is necessary to first understand the two ways of dispensing

The first way to dispense glue is by applying a certain pressure to the glue, and the glue will be squeezed from the dispensing needle to the surface or inside of the product due to the pressure. The second approach is to set the dispensing time. The longer the dispensing time, the greater the dispensing amount, and vice versa

1: First, it is necessary to calculate the amount of glue applied to the dispensing product each time. The calculation method is to measure the volume of the product at the dispensing point, and the size of the volume is the amount of glue dropped each time

2: Knowing that the amount of glue dispensed cannot achieve the goal of precise dispensing, it is also necessary to control the amount of glue dispensed by the dispensing machine. Within a certain period of time, the amount of glue dispensed must be equal to the volume of the product dispensing point. If the set dispensing time is longer, the amount of glue dispensed will be greater

3: If liquid glue is used and has a certain fluidity, it is recommended to use a pneumatic glue dispenser. Because it has a suction function, after the first drop of glue is completed, the phenomenon of glue automatically flowing out can be prevented by air pressure suction, which can ensure the accuracy of glue output

4: If the glue used in the glue dispenser is relatively sticky and requires high accuracy, HOLS (Suzhou)'s editor suggests considering whether to use a screw valve or add a heating function to increase the fluidity of the glue.