Professional Plastic Pipe Fitting Mould Manufacturer With 20 Years Of Experience - Spark Mould
4 Cavities PVC Sink J Bend P Trap Mold
J Bend P Trap Mold Structure
The core of this j bend p trap mold is the core pulling action of the j bend arc segment. Its core is composed of a 1-to-2 Crank-Slider Mechanism. This special four-bar linkage mechanism drives the mold core to rotate through the extension and retraction of the hydraulic cylinder.
We designed a two-step separation for the core part of this J Bend P Trap mold. Because rotating the core 90 degrees is not enough to completely separate from the product. If the angle is increased, the core and the product will interfere with each other. Therefore, we designed two fixed points on the crank part. When the core rotates 90 degrees, the first fixed point is released. The crank rotates around the second fixed point, one end of the core will rise, and then separate from the product.
J Bend P Trap Mold Dynamic Simulation
As shown in the video. This J Bend P Trap Mold Crank-Slider Mechanism has 3 steps in total.
Step 1: The hydraulic cylinder first pulls the slider up a certain distance and pulls out the slider of the J Bend port;
Step 2: The rising slider is locked, driving the pull rod to rise. The pull rod pushes the slider groups on both sides to rotate 90 degrees;
Step 3: The first fixed point is released, and the pull rod continues to push the crank to rotate. The product is completely separated from the core.
4-Cavity PVC P Trap Molds: Efficiency Meets Precision
A 4-cavity P Trap mold is designed to maximize production efficiency by molding four units per cycle. This multi-cavity approach reduces manufacturing costs and cycle times, making it ideal for large-scale orders. Here’s what sets high-performance P Trap molds apart:
1. Advanced Mold Design
Flow Analysis: Optimized runner and gate systems ensure even material distribution across all cavities, minimizing defects like air pockets or warping.
Cooling Channels: Strategically placed cooling lines reduce cycle times by accelerating solidification of PVC.
Durable Steel Construction: Heat-treated tool steels (e.g., H13 or S136) enhance mold longevity, even under high-pressure injection molding conditions.
2. Consistency & Quality Control
4-cavity molds ensure uniform wall thickness and dimensional accuracy across all units, critical for leak-proof performance. Automated ejection systems further streamline production while protecting delicate J Bend structures.
3. Cost-Effective Scalability
By quadrupling output per cycle, manufacturers achieve faster ROI while maintaining tight tolerances (±0.02mm). This scalability is vital for meeting global demand for PVC sink traps.
Sink Plumbing Knowledge: Why P Trap Molds Matter in Sink Plumbing Systems
The sink trap (commonly a J Bend P Trap) is a U-shaped pipe under sinks that retains a small amount of water to block toxic gases and odors. Made from corrosion-resistant PVC, these traps are lightweight, affordable, and easy to install.
Key features of an effective J Bend P Trap include:
Smooth internal walls to prevent clogs.
Accurate bend angles for optimal water sealing.
Durable PVC material resistant to chemicals and temperature fluctuations.
Upgrade Your Production Line Today
Whether you are producing J-elbows, U-elbows or other P-trap systems, we can provide reasonable mold solutions for your products. Partner with a mold specialist to optimize your sink plumbing components and stay ahead in the competitive sanitaryware market.