I. Thông tin cơ bản về sản phẩm

Câu hỏi 1: What are the UV2‑3200 / 4700 UV Curing Machines?

A1: The UV2‑3200 / 4700 series are double‑sided UV curing machines specially designed for EVA/MODE shoe material molding. Both upper and lower layers are equipped with independent UV lamp systems, capable of irradiating both sides of the shoe material simultaneously, or independently controlled for single‑side irradiation. Particularly suitable for shoe materials requiring double‑side treatment, greatly improving production efficiency.

Q2: What are the main differences between UV2‑3200 and UV2‑4700?

A2：They belong to the same series with identical core functions and working principles. The main difference lies in machine length and irradiation area size. UV2‑3200 is a more compact model suitable for medium‑capacity lines; UV2‑4700 is an extended model with a longer irradiation zone, suitable for high‑volume, high‑speed continuous production. Specific selection should be based on line space, output requirements and workpiece dimensions. (Note: Refer to official specification sheets for detailed parameters.)

II. Các ngành công nghiệp và vật liệu áp dụng

Câu hỏi 3:What materials can UV2‑3200 / 4700 process and in what scenarios are they mainly used?

A3: Mainly used for molding and pre‑bonding treatment of EVA, MODE (mould midsole) and other shoe materials. UV irradiation triggers polymerization of the primer, increasing surface polarity and making the material easy to adhere. Particularly suitable for shoe material processes requiring double‑side irradiation, such as sports shoe midsoles and outsoles.

三. Working Principle & Features

Câu hỏi 4:What is the curing principle of UV2‑3200 / 4700?

A4:The UV primer is evenly wiped onto the shoe material surface. After drying, the material is fed into the UV irradiator. UV light from both upper and lower lamps splits the photoinitiator in the primer to generate free radicals, triggering polymerization and grafting polar groups onto the shoe material surface, thus increasing polarity and adhesion with glue for strong bonding.

Câu hỏi 5:  What are the outstanding features and advantages of UV2‑3200 / 4700?

A5:

1. Double‑sided irradiation: Independent upper and lower lamp systems can irradiate both sides simultaneously.

2. Independent control: Upper and lower layers can be turned on/off separately, also suitable for single‑side processes.

3. High output: Production capacity over 1,000 pairs per hour.

4. Labor saving: Traditional machines require two passes (one for each side); this machine completes double‑side treatment in a single pass.

5. Low‑temperature treatment: Special air duct design with good temperature control prevents deformation of EVA/MODE foamed materials.

6. Intelligent detection: Immediate alarm and faulty lamp position display when a lamp fails to light.

7. Independent high/low power control: Each lamp can be individually adjusted for flexible operation.

8. Fault protection: Warning light flashes and conveyor belt automatically stops when UV system fails.

四.Installation & Operation

Q6: What utility conditions are required for UV2‑3200 / 4700?

A6:Power supply: AC380V/50Hz/3Ph (refer to each model’s specification sheet for specific power). Exhaust: Must connect exhaust ducts to outdoors for both upper and lower lamp housings. Machine must be properly earthed. Installation environment should have good ventilation, no corrosive gases, and adequate clearance from walls for maintenance and heat dissipation. (Note: Refer to official manual for detailed installation requirements.)

Q7: What key precautions should be taken before operation?

A7:

• Verify rotation direction of both upper and lower exhaust/blower motors matches arrows.

• Ensure light shields and safety doors are properly closed to prevent UV leakage.

• Select single‑side or double‑side irradiation mode according to process requirements.

• Select high/low power mode according to material type (different colors have different heat absorption characteristics).

• Operators must wear UV‑protective goggles and avoid skin exposure to UV radiation.

• Wait for lamps to stabilize (approx. 2‑3 minutes) before starting production.

Q8:What should be noted when shutting down?

A8:Turn off all UV lamp switches first, then press stop switch. Both upper and lower exhaust fans will continue to run for approx. 6‑8 minutes to cool the lamps, then automatically cut off power. Do not cut off power directly while lamps are hot. Turn off the main circuit breaker when not used for extended periods.

五.Maintenance & Care

Q9: What are the daily maintenance items for UV2‑3200 / 4700?

A9:

• Per shift: Clean conveyor belt surface; check upper/lower light shields and door seals.

• Weekly: Wipe upper and lower lamp glass and reflectors with industrial alcohol.

• Monthly: Clean electrical control box dust; check all terminals.

• Quarterly: Clean exhaust/blower motor impellers; check exhaust duct unobstructed.

• Lamp replacement: When lamps reach end of life (typically 800‑1000 hours), replace lamps on corresponding level and clean reflectors.

• Note: Record usage hours for upper and lower lamp systems separately for maintenance management.

Q10:  What precautions should be taken when replacing lamps?

A10:

• Turn off main power and allow lamps on the relevant level to cool completely.

• Wear clean gloves; do not touch quartz glass with bare hands.

• If touched, wipe with alcohol gauze.

• Confirm correct lamp model and tighten terminal screws.

• Upper and lower lamps may have the same specifications, but note their positions during installation.

• Run a test after replacement to verify normal lighting and clear alarm status.

六.Troubleshooting

Q11: What to do if a lamp fails to light?

A11:

• Check control panel for faulty lamp position display (this machine has intelligent detection).

• Check power supply and fuses for the corresponding level.

• Inspect lamp for blackening, cracks or end‑of‑life.

• Check terminal connections at both ends.

• If a single lamp fails, it can be turned off and production may continue (single‑side mode) until repair.

• If all lamps on one level fail, check the level’s control system (contactors, ballasts, etc.).

Q12: How does the machine respond to UV system failure?

A12:This machine has an automatic protection function – when the UV system fails, the warning light flashes and the conveyor belt automatically stops, preventing untreated materials from entering the irradiation zone, ensuring product quality and equipment safety. The operator should check the fault indication, troubleshoot the cause, then reset and restart.

Q13: What to do if the conveyor belt stops or behaves abnormally?

A13:

• Check if emergency stop button is accidentally pressed.

• Check if UV system fault triggered auto‑stop (warning light flashing).

• Check conveyor motor power and control circuit.

• Check for material jamming on upper or lower level.

• Check speed controller.

• If motor overheated, restart after cooling.

七.Model Selection & Production‑line Matching

Q14: How to choose between UV2‑3200 and UV2‑4700?

A14:

• UV2‑3200: Shorter model, suitable for customers with limited line space and medium output requirements.

• UV2‑4700: Extended model with longer irradiation zone, suitable for high‑volume, high‑speed continuous production with output above 1,000 pairs per hour.
  It is recommended to evaluate based on line layout, daily target output, workpiece dimensions, etc. Consult the supplier for professional selection advice.

Q15: Which upstream/downstream equipment can UV2‑3200 / 4700 be matched with?

A15:This machine is typically placed after the UV primer application (wiping) station and before bonding/pressing equipment. It can be integrated with automatic coaters, pre‑dryers, laminating machines, bottom presses, conveyor systems, etc., to form a complete shoe material molding production line. Its double‑side irradiation capability effectively simplifies line layout and reduces repeated feeding.

八. New Special Features & Differentiated Advantages

Q16: What improvements do UV2‑3200 / 4700 offer over traditional double‑side irradiation solutions?

A16:

1. One‑pass double‑side treatment: Traditional solutions require two passes (one per side); this machine completes it in a single pass, saving labor and time.

2. Independent upper/lower control: Choose double‑side simultaneous irradiation or single‑side only, flexibly adapting to different product requirements.

3. Intelligent fault location: Immediate alarm with specific faulty lamp position display for quick troubleshooting and reduced downtime.

4. Individual high/low power control: Each lamp can be independently adjusted, adapting to different materials and colors (e.g., heat absorption differences between black and white materials).

5. Automatic safety protection: Conveyor belt auto‑stops upon UV system failure, preventing defective products and equipment damage.

Q17: What is the practical production value of the “new special features” of UV2‑3200 / 4700?

A17:

• Immediate alarm and fault lamp positioning: Quickly identify faulty lamps, reducing troubleshooting time and improving equipment availability.

• Individual high/low power control for each lamp: More flexible operation, precise adjustment according to material characteristics, ensuring consistent curing quality.

• Auto‑stop conveyor belt upon UV system failure: Prevents uncured materials from flowing into subsequent processes, avoiding batch rework or scrap, ensuring product quality.