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What are the characteristics of the double tube precision screw valve glue supply series
source：www.cnkaihui.com | Release time：2026年07月28日Volumetric measurement, accuracy not affected by glue supply pressure or glue viscosity
Single screw outputs a fixed volume per revolution; The adhesive output is only related to the rotation angle/speed of the motor. The fluctuation of upstream material bucket pressure, the increase and thinning of glue temperature, and the settling of fillers do not affect the total amount and proportion of glue discharged in a single operation; The measurement repeatability accuracy is generally within ± 1%.
Flexible and adjustable ratio, two independent drives
A/B are independently servo controlled, and the ratio can be adjusted by modifying the speed through the program. It supports a wide ratio range of 1:1 to 10:1, without the need to replace the valve body, cylinder, and plunger kit; Quickly switch between different models of AB adhesive production.
Support micro precision dispensing
The adhesive output can reach 0.001-0.005mL, suitable for filling micro solder joints, camera modules, chip packaging, and sealing small components; It can achieve fine lines, small dots, continuous glue application, and small arc trajectory glue supply.
2、 Fluid transport characteristics
Continuous and stable dispensing, low pulsation, and low shear
The screw sealed chamber slowly pushes the fluid without needle impact or instantaneous high-pressure impact; It is not easy to damage sensitive fillers such as thermal conductive fillers, glass fibers, and fluorescent powders, and will not cause powder agglomeration or gel denaturation.
Compatible with a wide range of viscosity
It is suitable for low viscosity epoxy, medium viscosity polyurethane, high viscosity silicone, thermal conductive gel, high filling structural adhesive; It can transport fillers and adhesives containing solid particles, alumina, and silica micro powder, and is not easy to block valves.
A. Two paths B are completely isolated before the mixing pipe
The two internal channels of the valve body are not connected to each other to prevent glue from solidifying inside the valve body; There will be no A/B reflux cross contamination during shutdown, greatly reducing the risk of internal solidification and scrapping of the valve body.
3、 Process functional design
Programmable electronic suction, solving wire drawing and glue dripping problems
Servo reversal achieves suction, with adjustable suction distance/speed program; Clean glue breakage, suitable for high-speed reciprocating motion glue coating and long trajectory continuous operation.
Flow rate is linearly controllable and supports dual modes of continuous adhesive application and quantitative dispensing
Quantitative mode: Set the number of rotations to equal the amount of glue dispensed in a single operation;
Continuous mode: Constant speed and uniform dispensing of glue, suitable for potting and long glue lines.
Strong automation compatibility
Supports pulse commands and Modbus communication, can directly interface with three-axis dispensing machines, six axis robots, and online assembly line PLCs; Can synchronously collect speed and flow data for production traceability.
4、 Structure and operation characteristics
Modular structure, with independent consumables for the stator and rotor
Quick disassembly and assembly of core wear parts (FFKM rubber stator, stainless steel rotor); Changing the adhesive type is convenient for cleaning, and some models support a quick flushing channel.
Lower upstream feed pressure requirement
The upstream material bucket is only used for feeding and replenishing materials, and does not require high pressure; The feed pressure is generally 0.2-0.6MPa to reduce the pressure risk of the pipeline.
Optional value-added configuration
Mixing tube water cooling module: reduces the temperature of the mixed adhesive and extends the operable time of AB adhesive;
Pressure monitoring: Real time monitoring of inlet and outlet glue pressure, with alarms for glue shortage and blockage;
Liquid level linkage and automatic compensation for ratio deviation.
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