Why choose us
2 components dispensing machine vacuum pump for dispenser glue machine meter mix dispenser
Daheng AB Potting machine helps AB compounds offer superior protection for electronic circuits industry
Daheng Universal equipment is widely works for epoxies, silicones and polyurethane compounds , we configure different functions for the features of different compound to meet up with the production purposes .
Epoxies, silicones and polyurethane are among the most frequently used potting compounds. These can be applied to PCBs,PCBA,capacitors,power electronics, LED lighting, sensors, and more. Some of the desired properties include good adhesion,excellent electrical insulation, thermal stability, super chemical resistance, low shrinkage upon curing, an appropriate coefficient of thermal expansion (CTE), and suitable viscosity for the specific application. Formulations can be blended to provide a balance of these and other properties through careful selection of resin, agent, and fillers.
Epoxies, silicones and polyurethane are commonly used with fillers to lower shrinkage, enhance dimension stability, and improve abrasion resistance. The use of fillers is the critical factor for obtaining thermal conductivity while retaining electrical resistance.
Besides ,the liquid potting material must flow easily so that it completely covers the component, leaving no voids. If air becomes trapped in the housing, the moisture it contains may cause corrosion - eventually leading to component or product failure.
Daheng equipment with pre-heat functions that helps the pre-heat the AB compound in tank in advance to keep a good flow-ability.Good liquidity helps resin flow into product easily and evenly.
Daheng machine with tank stirring vacuum degas functions ,which can help compounds to remove air bubble easily and arrived the good potting status .
Removing air bubbles is very important.Vacuum degassing remains a critical processing step. The best technique for vacuum degassing is referred to as "bumping degas" which is alternately pulling and relaxing a vacuum in 30- to 60-second cycles.
Product Parameters
Machine Congigurations
Introduction :
1. Working Mode: controlled by PLC module and MCGS touch screen.
2.High precision valve: high speed, glue off clean, no glue drawing, no dropping. 3. Core metering pump specially design for different material from low to high viscosities. 4. Mix glue A & B more evenly; no more or no less for agent B.
Working principle :
Compound materials A & B are kept in two tanks separately. There are two sets of metering pumps inside the machine for metering A and B resin by setting ratio, draining out material individually from tank A & B. Liquid A & B mix with each other in the mixer pipe and dispensed out according to the programmable data.
Tank system technology:
1. Stainless panel vacuum pressure tank which can bear negative pressure of inner tank . 2. Tank with motor stirrer that prevent the glue from sediment and keep the potting material in constant temperature. 3 Tank with top/ high /low liquid sensors that ensure alarm warning when liquid higher or lower the setting level . 4 Tank with vacuum degas (degas time can be set through touch screen), so the material can be re-feeding through vacuum negative pressure . 5 Tank with pressure releasing ball valve ; the bottom of tank reserved back-flow connector and river closure ball valve.
6 Tank with heater which can preheat materials to assure good flowability . 7 Tank with artificial feeding mouth that can be added glue appropriately by hand . 8 Tank with silica-dryer which can prevent material especially PU from crystallization .
D&H Pump technology
1. Two cylinder plunger pumps work by durable motors. 2.The biggest flow volume :24g/s,Repetition accuracy:0.2g. 3.Also Suitable for high viscosity glue: 50cps~35000cps. 4. Suitable for big flow dispensing or slight flow dispensing. 5. Suitable for frequent start and stop dispensing. 6. Anti-wear, Anti-corrosion, super long life time.
Valve technology
1. Two cylinder plunger pumps work by durable motors. 2.The biggest flow volume :24g/s,Repetition accuracy:0.2g. 3.Also Suitable for high viscosity glue: 50cps~35000cps. 4. Suitable for big flow dispensing or slight flow dispensing. 5. Suitable for frequent start and stop dispensing. 6. Anti-wear, Anti-corrosion, super long life time.
PLC operation Controlling System
1 Dispensing volume is controlled by the speed of pump's motors ; Glue speed adjustable within the speed range .
2 Machine with detecting function that detect the speed and running time of pumps to ensure the ratio reliability.
3 Adjustable gluing-out volume make sure glue A/B dispense out at the same time from glue valve to get better glue mixing effect .
4 Machine with gel resistance calculator , which prevent the mixture curing inside .
5 You can set single gluing-out and steady gluing-out function to meet up with your different process requirement .
6 Whole machine system and function is controlled by Panasonic PLC and MGCS touch screen .
7 Reserved PLC communication interface, which easy connecting with outside device .
8 Equipped with a safety lock to prevent staff from wrong operation .
|
ITEM
|
Parameter
|
|
Mixing ratio
|
1:1--10:1 adjustable
|
|
Working range
|
Can be customized
|
|
Displacement speed
|
300mm/s(speed)
|
|
Out-glue speed
|
1-12g/s per single pump
|
|
Accuracy
|
±2%(output volume)±2%(mixing)
|
|
tolerance
|
≤0.2mm
|
|
Flow control
|
Digital input
|
|
Program memory
|
99pcs-999pcs
|
|
Motion trail
|
Dot , line ,curve ,circle
|
|
Automatic controlling system
|
Touch screen (to achieve program programming, modification, storage and so on
|
|
Out-glue control system
|
AB glue back suction valve, achieve AB glue independent operation
|
|
Programmatically
|
Tech programming/or computer systems (Micro software Windows 7,Windows10 optional)
|
|
Mixing method
|
dynamic mixing
|
|
Power supply
|
220V/50Hz/1500W without heating
|
|
Air source
|
0.5-0.8Mpa
|
|
Viscosity range
|
50-20000cps
|
|
A tank
|
10L 25L 40L stainless tank(optional)
|
|
B tank
|
10L 25L 40L stainless tank(optional)
|
|
Others
|
AB tank ,A pump,AB pipeline heating function
|
Daheng Two component dispensing potting dosing system ,electronic potting and casting system ;
Epoxy resin electronic products machinery vacuum casting machine pu glue machine automatic ab glue machine adhesive machines
We Daheng Automation specialize in different types of potting and dispensing system. No matter what your resin application requirements look like: we can do most of them in our fully equipped lab. We can handle 1- and 2-component polyurethanes, epoxies, acrylics, silicones, temperature, humidity and UV curing materials. They can be from low- to high-viscosity, filled or unfilled and even high abrasive for thermal conductivity.
More machine types and designs to suits for different application processes requirements
XYY meter mix movable system (Automatic gluing dispensing machine )
More machine serious are for your optional
Our equipment are designed to mix and dispense adhesives accurately and apply resin to filteraccurately by 3-axis dispensing robot.
Some machines dispense only one mix ratio, while our machine can cover a range of ratios.
The filter manufacturer can quickly recoups the investment through using our equipment , since the high productivity can savings the cost for bulk production.
Applications:
1. Potting &Casting: electronics componnets , PCB board, Capacitor, power supply, transformer, ignition coil,reverse sensor, circuit board, filter products ,underwater parts, electronic ballast ,aviation parts, aerospace ...
2. Dispensing&Dosing: LED strip , led lamp , led bulb , aluminum,led screen , display module ,medical parts,medical liquid
filling ....
3. Bonding&doming: LCD screen ,LOCA bonding,ABS plastic,different types of stickers , badge , keychains , souvenirs ,arts , photo frame , and other arts graphics....
Our machine solutions suitable for all kinds of epoxies , pu ,epoxies fluids for different application , anyindustials products
that needs to apply fluids can use our machine to get good performance .
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 of A and B component separately.
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 dispensing 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 ?
Staff Training
Seller is responsible to provide machine's training including installation, debugging, maintenance to assured customer can totally use the operation skills and well acknowledge maintenance of machine .
Maintenance Service
2.1Seller provide one year warranty period and support free maintenance service during warranty . Software upgrade service is provided for a long life time.
2.2 In case parts of the machine become broken within the warranty because of non-artificial factors, we send you part
replacement free, buyer pay for the shipment. Double-liquid valve should be bought at its cost price.
2.3If the parts of the machine become broken past warranty , the parts replacement should be shouldered by buyer.
Common troubles and solutions:
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 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 .
Introduction of Guangzhou Daheng Automation Equipment Co.,Ltd
D&H is a company who has its own core tech and provides professional glue controlling solutions in the industry.
In 2006 we developed the patent-"double cylinder plunger pump",the glue dispensing machine with such a pump type was launched into the market successfully.This patent design becomes the heart of a new generation of metering device.The new design leads the liquid controlling device into a direction of high filling,high precision ,high crystallization,high output speed and production line.
In 2015 we deveoloped the core patent-"Intelligent Gluing",the first intelligent glue dispenser in the world was launched into the market.The new generation machine will achieve calculation,communication,remote-control and self-management;push forward the development of the intelligent equipment and intelligent factory.
With over 20 patents our machines are widely applied in the industry like LED,lighting,automobile,the electronics,power
supply,capacitor,transformer,circuit...
We are headed in Guangzhou China,built branches in Shenzhen,Beijing,Shanghai,Xiamen,Chongqing,Zhongshan...;We also cooperated with customers from over 30 countries such as Germany,the USA,South Korea,Russia,India...We are becoming lading among our conpetitors in the industry.
We believe in "Success Comes from Details,Innovation Improves the Future".We provide our customers the service support 24h*7days,monthly training-up,software-upgrade,keeping improvement and making us more perfect.
We are searching for the agents and cooperative partners from different countries,hoping,with you together,to provide the best adhesive control solutions for the customers in the world.
){kind=link}