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What is the double tube precision screw valve glue supply series

source：m.5songhua.com | Release time：2025年04月01日

The double tube precision screw valve glue supply series is a device used for correctly controlling the transportation and distribution of glue or fluids. The following introduces the working principle, structural composition, product characteristics, and application fields:
1. Working principle: Two independent servo motors are used to drive two precision screws to rotate, and the glue is quantitatively pushed out from their respective sealed chambers. The screw outputs a fixed volume of glue per rotation, independent of the viscosity of the glue, with a control accuracy of ± 1%. By controlling the speed, direction, and number of rotations of the motor, the output amount and ratio of adhesive A and B can be accurately controlled to achieve correct adhesive supply.
2. Structural composition
Valve body: It is usually made of high-strength and corrosion-resistant metal materials, such as stainless steel, to form a channel for the flow of glue. The interior is designed with high-precision chambers and channels to ensure smooth flow and correct control of glue.
Screw: It is a key component that drives glue, usually made of hard alloy or specially treated steel, with high-precision spiral shape and surface smoothness.
Drive device: mainly composed of servo motor, reducer, coupling, etc., it provides power for the rotation of the screw and can correctly control the speed and rotation angle of the screw.
Mixing tube: located at the outlet of the valve body, used to evenly mix A and B adhesives. Different types and lengths of mixing tubes can be selected according to different adhesive characteristics and mixing ratio requirements.
3. Product features
High precision measurement: It can achieve high-precision measurement and control of glue, with an output ratio error of A and B glue of ≤ 0.5%, ensuring the correctness of the glue mixing ratio.
Stable glue supply: The screw rotates at low speed to avoid shear heating or component separation caused by high-speed extrusion, overcoming the flow resistance of high viscosity glue and ensuring stable output.
Self cleaning function: The screw fits tightly with the cavity, creating negative pressure during suction, effectively preventing dripping and drawing, reducing glue waste and environmental pollution.
Flexible adjustment: The supply amount, speed, and mixing ratio of A and B adhesives can be flexibly adjusted according to different process requirements to adapt to various adhesives and application scenarios.
4. Application Fields
Electronic manufacturing: used for packaging, bonding, coating and other processes of electronic products such as mobile phones, computers, tablets, etc., such as chip packaging, circuit board bonding, screen assembly, etc.
Automotive manufacturing: Used for the correct application of sealants, structural adhesives, thermal conductive adhesives, etc. in the manufacturing process of automotive engines, transmissions, bodies, and other components, such as engine cylinder block sealing, body sheet metal bonding, battery pack sealing, etc.
Aerospace: Used in the manufacturing and maintenance of aircraft wings, fuselage, engines and other components, such as composite material bonding, fuel system sealing, electronic equipment sealing, etc.

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