Glue Dispenser

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What is glue dispensing machine

Glue dispenser , we also call coating machine ,glue potting machine and so on . It is a flow controlling system .The automatic glue dispensing machine dispense or coat the glue on the surface or internal of the products which can be 3D/4D track . The functions including accurately positioning ,precision glue controlling ,no drawing , without leakage and so on . Glue dispense main widely use for dot , line , arc , circle track to accurately dispense glue,oil paint or other liquid to each product .

Glue dispenser suitable for fluids as follow : Solvents ,adhesives,oil paint,chemical materials,solid gum ,silicon , EMI conducting resin ,UV glue, AB glue, quick-drying glue, epoxy glue, polyurethane adhesive, sealant, hot glue, red glue, solder paste, acrylic adhesive, adhesive wear, crystal glue, glue, horn glue, instant glue, rubber, paint, enamel paint, lacquer, printing ink, paint.

Fully automatic glue dispenser SZD-400

Glue dispenser working principle

1.Please put the glue into cylinder and cover with adapter ,then fixed it on the fixture.

2.Editing programs base on tracking of the products and save it .

3.Setting the gum productivity base on product and storage the parameter .

4.Select the program and test the glue for sample production, if no problem , you can start batch production .

Glue dispenser mainly including one compressed air source , one main compressed air channel, one assistant compressed air channel , one glue gun and one timing controller . Main compressed air channel set in turn with pressure regulating valve ,pressure meter ,three-port valve which end is connecting with compressed air source and the other end is connecting with flexible pipe . The assistant compressed air channel which is connected with compressed air source set in turn with governor valve and branch pipe which is connecting to atmosphere ,those lead to the branch pipe with negative pressure. In addition , The piston glue gun makes the viscose extrusion from the needles with the help of pneumatic drive and accurate control of timing controller . Meanwhile , negative pressure back to the suction and make the glue gun without any residual drawing .

Two questions before purchase

1.What’s type of glue do you use ? What’s the base characteristic ?

A)One-component or two-component (A&B glue);

B)What is the AB ratio if two-component.

C) What’s the viscosity and density .

D)How long does it start to curing , and what is the completely curing time .

E)What’s the packing of the glue .

2.What’s the glue process technological requirement ?

A)What is the glue accuracy with each product ?

B)What’s the purpose of gluing ? Filling , sealing ,paste,insulation, moisture proof ?

C)How to glue the product .

1、1.Application for optional

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2、Glue type for optional

Glass glue dispense Solder paste glue dispenser Quick-dry glue dispenser UV glue dispenser Silicon glue dispenser Epoxy resin glue dispenser Double-liquid glue dispenser Single fluid dispensing machine 502 glue dispenser Peristaltic glue dispenser

3、Glue process for optional

Manual operation glue dispenser Simple glue dispenser Table glue dispenser Fully automatic glue dispenser Semi-automatic glue dispenser Glue dispenser Line Fully automatic energy saving lamp glue T8 Tube glue dispenser Digital glue dispenser High precision glue dispenser Circle glue dispenser Quantitative glue dispenser Multi-head glue dispenser Two-head glue dispenser Four-Axis glue dispenser Three-Axis glue dispenser

4、Cost-effective for optional(Cost from high to low :)

Glue dispenser Line> Fully automatic glue dispenser> Semi-automatic glue dispenser> Manual operation glue dispenser

Speed from fast to slow:multi-heads glue dispenser > two heads glue dispenser >single head glue dispenser

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Common troubles and solutionsMore

The most common trouble of glue dispenser is the valve . We list the effective solutions as follow:
  • 1.Glue dispenser always drops

    Drops always happened when valve closed . The reason may be low concentration of glue , big air-pressure or large diameter of needles.

    Narrow needles will effect the flow of the liquid and cause back pressure . It will lead to dropping when the valve closed . Too narrow needles will effect the drainage of air when valve start to work, but it can be solved if change suitable needles .

    Conical needles with less back pressure and liquid flow smoothly .

    It is better to drainage of the air advance or use no-foam glue or deaeration to avoid the air cause dropping after valve closed .

  • 2.Glue dispensing not evenly

    The problem cause mainly because of the storage flow pressure tank or air pressure is not stable.

    Inlet pressure regulating table should be set lower 10-15psi than factory minimum pressure . The pressure in pressure tank should be set upper than the middle pressure of regulating table . It should be avoided to use the pressure lower than the middle pressure of regulating table .

    Control pressure of rubber valve at least higher than 60psi to assured glue evenly .

    We should check the glue output speed at last . The glue is uneven if the time less than 15/1000s , the output speed more longer , the glue dispensing will be more stable .

  • 3.Slow flow velocity

    It should be changed the pipe from 1/4 to 3/8 if the flow velocity too slowly .

    The pipe is the shorter the better if no requirement .

  • 4.Air in the fluid

    Excessive fluid pressure and short valve opening time may lead to the air infiltration liquid . We can use the conical needles and reduce fluid pressure .

  • 5. Instant glue (quick adhesive) blocking in valve connector and pipes.

    This problem is caused by heavy moisture and recycle instant glue . We should make sure to use new instant glue and wash the pipes with dry acetone . Make sure air dry and add filter between plant air pressure and valve .

  • 6.UV glue (UV curing glue )

    Make sure to use black pipeline.

    Don’t add new UV glue to old UV glue in pressure tank , we should drain off the old UV glue before pouring new UV glue into pressure tank because the UV glue will produce bubble after a period of time and lead to glue dispensing unevenly .

  • 7.Needles

    Normally , it may cause air problem if the needle less than NO.20 . It is better to use large steel needles or conical needles to avoid to use winding needles or teflon needles

  • 8. Epoxy cleaning

    It is better to use storage pressure cylinder of methybenzene toluene to self-cleaning one time for each shift . The more frequently cleaning the better .

Glue machine accessories

  • SyringeSyringe
  • Stainless needleStainless needle
  • Plastic base with metal needlePlastic base with metal needle
  • Teflon needleTeflon needle
  • AdapterAdapter
  • Dynamic mixing tubeDynamic mixing tube
  • Static mixing tubeStatic mixing tube
  • Dynamic twin liquids valveDynamic twin liquids valve
  • Static twin liquids valveStatic twin liquids valve
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