Injection Machine Spring Shut Off Nozzle Overview
The injection machine spring shut off nozzle is a revolutionary product that has transformed the plastic injection molding industry. This system is designed to improve the efficiency and accuracy of plastic injection molding processes by shut off the flow of plastic within the nozzle, preventing any excess material from leaking.
The injection machine spring shut off nozzle has numerous benefits, including reducing material waste, increasing productivity and improving the quality of the end product. The spring-loaded design of the nozzle ensures that it maintains a tight seal, reducing the need for manual intervention and making the injection molding process more automated and efficient.
In addition, the injection machine spring shut off nozzle is highly durable, making it ideal for high volume production processes. Its innovative design also reduces the likelihood of unwanted spillages and the subsequent costs associated with cleaning up messes.
Overall, the injection machine spring shut off nozzle provides a range of benefits that will revolutionize the process of plastic injection molding. It is an innovative and effective product that is set to become an essential part of the injection molding industry, driving greater efficiency, reduced costs, and improved quality.
How Does Injection Molding Machine Spring Shutoff Nozzle Works
The spring shut-off nozzle system works by controlling the flow of melted plastic material during the injection process. The nozzle is designed to allow the melted plastic material to flow into the mold cavity smoothly and evenly with injection pressure. Once injection finish and pressure drops to certain level, the nozzle will close automatically to seal the nozzle flow channel and prevent any excess flow of plastic material from entering the mold. This is achieved through the use of a spring-loaded mechanism which allows the nozzle to close automatically when a certain amount of pressure is applied. And during screw charging, it will still stay closed for prevent material leaking.
Benefit of Spring Loaded Shut Off Nozzle
1. Reduce material waste: The spring shut-off nozzle prevents excess material from dripping or leaking after the injection process is complete, which can reduce material waste and improve efficiency.
2. Improve part quality: The spring shut-off nozzle can help ensure that the injection process is consistent, resulting in parts with consistent dimensions, surface finishes, and other properties.
3. Increase production speed: By reducing the time needed for material to cool and solidify, the spring shut-off nozzle can increase the production speed of injection molding processes.
4. Reduce maintenance and downtime: The spring shut-off nozzle can prevent material from leaking into the mold cavity or onto the machine, reducing the frequency and cost of maintenance and downtime.
5. Improve safety: The spring shut-off nozzle can reduce the risk of leakage or spills, which can improve operator safety and reduce the likelihood of accidents or injuries.
Model Selection & Parameters of Spring Anti-leakage Nozzle
Spring Shut-off Nozzle mainly serves to solve the leakage of low viscosity thermoplastic injection process. The needle is drove by internal spring and keep shutting automatically and seal in nozzle tip, during injection process, the injection pressure forces the needle back to open the channel and ensure proper injection.
PARAMETER | RS-I | RS-II | RS-III | |
Max. Shot Weight (Ref.) | gram | 200 | 1000 | 5000 |
Max. Inj. Rate (Ref.) | cm3/sec | 300 | 700 | 1500 |
Max. Screw Size (Ref.) | mm | Φ40 | Φ70 | Φ120 |
Body Length (L1) | mm | 91 | 123 | 135/145 |
Outer Diameter (G) | mm | Φ45 | Φ47 | Φ60 |
Band Heater Size | mm | Φ45*40L | Φ47*60L | Φ60*70L |
Open Pressure (Ref.) | Bar | 280 | ||
Close Pressure (Ref.) | Bar | 100 | ||
Max. Inj. Pressure (Ref.) | Bar | 2500 | ||
Max. Temperature | °C | 380 | ||
REQUIRED MEASUREMENT FOR ORDERING | ||
C | Inlet Diameter | |
D | Centering Diameter | |
E | Connection Thread | |
H | Centering Length | |
L2 | Thread Length | |
F | Oriface (Max. RS-I/II 5mm, RS-III 8mm) | |
R | Tip Profile (Radius or Angle) | |
K | Inlet Angle (If important) | |
Troubleshooting for Injection Spring Nozzle
| Problem | Cause | Action |
| Leak at nozzle body | Nozzle and body not tightened | Tighten nozzle and body with proper torque |
| Nozzle doesnot fully open | Demage at sealing surface | Replace needle and spring |
| Melt MFI too high | Not suitable spring nozzle | |
| Nozzle doesnot fully close | Demage at sealing surface | Replace needle and spring |
| Foreign object stuck | Remove and clean nozzle |
Spring Nozzle Assembling & Operation
- Spring nozzle supplied are integrated one piece, directly replace former nozzle and thread tighten.
- Heat nozzle to proper processing temperature
- Operate melt polymer and purge all molten polymer till clean material comes out of nozzle
