Blog
How can the gluing effect of a glue dispensing machine be improved?
Here is placeholder text for Heading 1 h1.
Release time:
2022-04-21
The main factors affecting the gluing performance of a dispensing machine include: needle size, dispensing volume, distance between the needle and the work surface, dispensing pressure, viscosity of the adhesive, curing temperature profile, adhesive temperature, air bubbles in the adhesive, and fluids requiring special settings. Therefore, according to He Lishi, the editor, improving the performance should also start from these aspects.
Impact Glue filling machine fills The main factors affecting adhesive performance include: needle size, amount of adhesive dispensed, distance between the needle and the work surface, dispensing pressure, viscosity of the adhesive, curing temperature profile, adhesive temperature, air bubbles in the adhesive, and fluids requiring special settings. Therefore, according to Heli Shi Bian Xiao, improving adhesive performance should also start from these aspects.
1: Selecting needles for different types of glue
Instant glue: Water-based instant glue uses a safe piston and a metal-lined needle. For thicker instant glues, a conical beveled needle is required; if flexibility is needed, a PP needle should be used.
UV glue: Use an amber-colored syringe with a white plunger and a beveled needle.
Light-curing adhesive: Use a black, opaque syringe to avoid light sensitivity.
Anaerobic adhesive: Use a 10-cc syringe and a white PE universal plunger.
Sealants and pastes: If the white piston experiences severe rebound, switch to a safety-type product and use a beveled needle.
2. The amount of adhesive typically recommended is half the diameter of the product spacing; this ensures sufficient adhesive for bonding components while avoiding waste. The duration of the application time determines the volume of adhesive dispensed, so it’s important to set the application time based on temperature and the specific characteristics of the adhesive.
Second, regarding the gluing pressure, excessively high pressure typically leads to glue overflow and excess glue usage. Conversely, if the pressure is too low, intermittent filling and glue leakage may occur, resulting in product defects. Therefore, it’s necessary to adjust the pressure based on factors such as ambient temperature and glue viscosity.
Third, in addition to factors inherent to the dispensing machine itself, the viscosity of the adhesive also directly affects the quality of the dispensing process.
If the viscosity is high, the glue dots will become smaller and may even form filaments. If the viscosity is low, the glue blobs will become larger, potentially leading to leakage from the product. The glue temperature should be maintained between 23°C and 25°C. Environmental factors can affect the viscosity of the glue. As the temperature drops, the viscosity increases, the glue flow rate slows down accordingly, and filament formation becomes more likely. The curing temperature profile for the glue is typically provided by the manufacturer. In practical operations, it’s best to cure the glue at as high a temperature as possible, ensuring that the cured glue has sufficient strength.
Four, Glue dispensing machine The needle typically used has an inner diameter approximately half the diameter of the encapsulation point. During the encapsulation process, the encapsulation needle should be selected based on the size of the product.
5. The distance between the needle and the work surface must be carefully controlled when applying adhesive. It’s important to note that different adhesive dispensing machines require different needles, and each needle has a specific stopping position. Therefore, before each job begins, you must calibrate the distance between the needle and the work surface—that is, perform Z-axis height calibration.
Finally, Li Shi Bianxiao would like to remind everyone that the glue must be free of air bubbles. Even small air bubbles can cause many products to become unglued. Each time you change the glue tube mid-process, be sure to completely purge any air from the joints to prevent this from happening. Glue dispensing machine There is a phenomenon of empty vehicles appearing.
Recommended News
The Shanghai Munich Exhibition has concluded successfully.
From March 20 to 22, 2024, the Shanghai Munich Exhibition was held in grand style, and Gao Kai was invited to participate in this event. During the exhibition, Gao Kai’s dispensing and coating equipment—boasting features such as high precision, high efficiency, and high stability—immediately became the center of attention, drawing numerous visitors to stop and watch. Attendees engaged in in-depth discussions with the technical staff and highly praised Gao Kai’s technological strength and market potential.
Project Kick-off Meeting: “Clarify Job Responsibilities and Implement Work Standards”
During the first decade of Gao Kai’s entrepreneurial journey, we achieved remarkable successes through pioneering innovation, weathering storms together, collaborating closely, and continuously improving. Now, as we enter our second “decade,” the importance of refined and standardized management has become increasingly evident. On the morning of March 14, Gao Kai Group held a kickoff meeting for the “Clarify Job Responsibilities and Implement Work Standards” project, attended by representatives from all business units and departments.
At the beginning of the annual meeting, General Manager Liu expressed his recognition and heartfelt gratitude for the tireless efforts and hard work of employee Gao Kai in 2023. He also encouraged everyone to bring forth their utmost enthusiasm and full vigor in 2024, continuing to strive hard and forge ahead with innovation to write a new chapter. Finally, we extend our warm New Year greetings and best wishes to all our guests and全体员工!
Investor Relations
Investor Relations
Partnering with Gao Kai
Jointly build a value platform
Official Public Account
Official Douyin
Address: No. 18, Changwu Middle Road, Wujin District, Changzhou City, Jiangsu Province
Phone:0519-89886095
Email:ir@gk-precision.com
Copyright © 2026 Jiangsu Gao Kai Precision Fluid Technology Co.,Ltd. All Rights Reserved.