Double component polyurethane resin metering injection equipment for pultrusion process, Jiunai Machinery ECO-IP series polyurethane injection machine

1、 Overview

The traditional pultrusion process uses manual glue mixing and an open glue groove to achieve the infiltration of reinforcing materials (glass fibers, carbon fibers, etc.) with resin. Under the action of traction, the resin impregnated reinforcing materials are formed, cured, and continuously produced through extrusion molds. In recent years, due to the improvement of environmental awareness, the emergence of new materials with stronger activity such as epoxy resin and polyurethane resin, as well as the pursuit of better product performance, quality, and higher production efficiency; Our company has collaborated with resin material manufacturers, extrusion traction line manufacturers, mold manufacturers, and numerous fiberglass production enterprises to develop the ECO-IP series of dual component resin injection machines for closed film pressure injection and extrusion processes.

The ECO-IP series dual component resin injection machine is mainly used for automatic metering, proportioning, mixing, and continuous quantitative feeding of epoxy resin, polyurethane, phenolic resin, and other dual component thermosetting resins in the composite material extrusion molding process. According to the traction speed and adhesive amount, the resin and curing agent are automatically proportioned, mixed, and continuously fed in real-time online. By mixing, the mixed adhesive is always kept fresh, with the fluidity of the mixture and the wettability with fibers. The ECO-IP series extrusion process dual component resin injection machine adopts PLC programming control, intelligent touch screen operation, and equipment operation is simple and easy to learn. Two storage tanks separately store two components of resin and curing agent adhesive; According to the performance and process requirements of the rubber material, a series of pre-treatments such as heating, cooling, and constant temperature control can be carried out on the rubber material in the material tank (low temperature in winter reduces the viscosity of the rubber material, making it more flowable; high temperature in summer suppresses its reaction activity), stirring (anti precipitation, uniform material temperature), vacuuming (vacuum defoaming, vacuum preservation of raw materials), and so on. Match suitable metering pumps according to the performance and process flow requirements of the adhesive, and the metering system uses servo motors to drive imported metering pumps to achieve resin and curing agent metering and continuous and stable feeding. A static mixing device with protection enables uniform mixing of resin and curing agent adhesive.This device hasWide range of discharge volume, stable discharge volume, ultra wide variable proportion, easy regulation, stable injection pressure, and other characteristics,Can be applied to production lines with dual component and different proportion requirements.

2、 Advantages of closed film pressure injection process

1. The investment in process improvement is not significant, and the original pultrusion traction line and mold can continue to be used. Only a dual component injection machine needs to be added and a closed injection box needs to be added at the front end of the mold (some products require integrated injection boxes and molds);

2. Compared to open immersion tanks, closed moldsThe injection process can effectively suppress the emission of VOC gas from resinReduce odor diffusion and be more environmentally friendly. Currently, some regions have planned to introduce documents prohibiting the production method of open material tanks;

3. Closed moldpressureGluingworkmanshipAvoiding adhesive materialslong-termContact with air, as well as contact with moisture and other substances in the air, can have a certain impact on product quality;

Closed film pressure injection processThe infiltration of fibers and resins is better, which cangreatlyIncrease the fiber content of the productReduce production;

4. The bottom of the traditional impregnation tank retains a certain amount of impregnation material for a long period of time, while the quantity is continuously measured during closed mold pressure injectionTo the groundInject glue into the glue box, and the glue inside the glue box is always fresh and maintains good fluidity;

fiveThe glue injection machine adopts PLC programming control, measurement system, and static mixing device, with online continuous automatic measurement, proportioning, and mixing. Simply set the proportion, flow rate and other parameters on the PLC touch screen, and the equipment will automatically mix and match, with high measurement accuracy and continuous and stable quantitative feeding, which is conducive to maintaining the consistency of the process and productTo avoid quality issues such as incorrect mixing ratio, uneven mixing, and excessive introduction of bubbles during manual mixing and weighing.

6. The glue injection machine is equipped with a pressure monitoring function, which automatically stops the glue injection when the pressure exceeds the set value; Automatically inject glue when the pressure is less than the set value. There is no need for personnel to be on duty to observe the amount of glue in the injection box. Traditional open immersion tanks require manual observation of the stock of glue in the tank at any time.

3、 The characteristics and characteristics of ECO-IP series pultrusion (winding) process dual component resin injection machines

oneAutomatic proportioning: The metering pump controls the glue output, achieving online and real-time mixing, ready to use and ready to use

twoMix evenlyProtected static mixing device with cycling function to achieve uniform material mixing

threerationServo motor drives high metering pump for glue supply, with metering accuracy error ≤ ± 1%

fourSave laborTraditional manual weighing, proportioning, and mixing processes are all automatically completed by equipment, greatly improving efficiency. One machine can replace 3-5 manual workers

fiveeconomize raw materials: Ready to use and ready to use, reducing the waste of raw materials caused by manual glue mixing

sixtemperature controlAccording to the resin of the process, heating (or constant temperature control for heating and cooling) can be configured, andAssisted by environmental temperature and humidity display, it is convenient for technical personnel to adjust in a timely manner,Continuous production of pultruded products.

sevenPressure monitoring:equipmentEquipped with pressure monitoring function, when the pressure exceeds the set value, the equipment automatically stops injecting glue;Automatically inject glue when the pressure is less than the set value. There is no need for personnel to observe the amount of glue in the injection box, and there is no need to worry about excessive glue overflow in the injection box.

eightMaterial quantity monitoring:Material tankEquipped with Teflon high and low liquid level display tubes (high pressure, non adhesive) andConvenient for operators to visually and accurately observe the remaining amount of rubber in the material barrel; It can also be equipped with high and low liquid level alarm functions.

nineVacuum loading:Optional vacuum pump for vacuum storage of the rubber material in the material tank, avoiding contact with air and extending the service life of the raw material; And can achieve vacuum negative pressure automatic feeding,Compared to the suction pump, it is moreThe cost of replacing the suction tube is very low.

tenRaw material filtration (pump body protection):Metering pumpfront endInstall a 2L buffer filter tank. On the one hand, it canIt has the function of filtering impurities in raw materials and preventing the pump body from getting stuck; On the other hand, when shutting down, simply close the feeding ball valve, vacuum and store the raw materials in the barrel, and quickly rinse the buffer tank, pump body, and pipeline with cleaning solvent. In addition, some small materials and additives can also be added to the buffer tank during sample preparation, avoiding the trouble of cleaning the entire material tank.

elevenCustomization:Optional high-pressure pump (plunger pump) and low (normal) pressure pump (gear pump, screw pump),Meet the requirements of low-pressure (high-pressure) injection molding processes for different products;It can also be the same asWhen adding two sets of pump bodies and controlling them separately, one machine can supply two pulling and squeezing leads with glue;In addition, pumps A and B can also be controlled separately, and this set of equipment is also suitable for single component resinsApplicable.

twelveEasy to maintain:Spray Teflon coating inside the stainless steel barrel, as well as scientific, reasonable, and minimalist pipeline and circuit design,Avoiding too many dead corners for later refueling and cleaning equipment.

thirteenImprove qualityAvoiding quality issues caused by manual weighing errors, uneven mixing, and other issues

fourteenAutomatic cleaning: Three stage one button high-pressure atomization automatic cleaning

fifteenEasy to operateThe "foolproof" intelligent operating system is simple and easy to learn, and ordinary people can learn it in 10 minutes without the need for hired technical personnel

sixteenTaiwan TechnologyOur technical team has 13 years of experience in the research and development and production of dual component fluid control equipment. We adhere to domestic and foreign suppliers for accessories, resulting in more stable machine performance

seventeenImproved after-sales serviceOne year, lifelong service, making customers worry free when purchasing machines

Dongguan Jiunai Machinery Co., Ltd. was founded in 2012 and is located in Sanhe Industrial Park, Xiagang Community, Chang'an Town, Dongguan City, Guangdong Province.

The company mainly operates dual component infusion equipment, automatic proportioning vacuum infusion equipment, and micro foaming equipment. The product is exported to Vietnam
India and other Southeast Asian regions!

Dongguan Jiunai Machinery Co., Ltd., formerly known as Taiwan Jiunai Machinery Co., Ltd., has 12 years of experience in the development and production of dual component fluid control equipment. The company has gathered R&D engineers and production management personnel who have been working in factories in Taiwan for many years, as well as several senior technical consultants and an after-sales team. Integrating product research and development, production, sales, and after-sales service. Multiple core technologies have been recognized and highly praised by multiple enterprises!

In addition, the company can also provide a complete set of technical solutions and 24-hour dedicated services, as well as the transformation, upgrading, and upgrading of imported equipment, according to the specific process requirements of customers.

Jiunairen adheres to the business philosophy of "honesty first, quality first, and thoughtful service", bearing in mind the mission of "liberating humanity with machines", and providing customers with excellent infusion equipment and thoughtful services!

And after-sales service commitment
1. With a one-year warranty and lifelong maintenance, our products undergo a series of strict quality tests before sale. After proper installation, normal operation and maintenance, they operate safely and reliably. The provided equipment meets the required specifications and performance in all aspects.
2. The customer service department has a 24-hour hotline telephone service, allowing users to receive timely technical support and services during the use of the equipment. For equipment malfunctions, our company strives to solve equipment problems for users within 24 hours.

Free training for on-site operators
After the installation and debugging of the equipment, our technical personnel will provide training to on-site operators, mainly focusing on the knowledge of installation, use, and maintenance, so that on-site operators can correctly operate the equipment and carry out daily maintenance and troubleshooting of common faults.