一种多腔同步注塑的热流道分流板结构
By integrating a spiral flow guide cavity, pressure sensor, and carbon nanotube heating film into the hot runner manifold structure of multi-cavity synchronous injection molding, the melt pressure and temperature can be adjusted in real time, solving the pressure imbalance problem caused by melt viscosity changes and mold temperature fluctuations, and improving processing efficiency and quality consistency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TENGSHENG PRECISION HOT RUNNER TECHNOLOGY (SUZHOU) CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-17
AI Technical Summary
The existing hot runner manifold structure for multi-cavity synchronous injection molding cannot respond in real time to pressure imbalances caused by changes in melt viscosity or mold temperature fluctuations, affecting processing efficiency and quality.
It adopts a main flow divider and a secondary flow divider structure, combined with a spiral guide cavity, pressure sensor, driver and hydraulic components. By monitoring and adjusting the melt pressure in real time, it achieves uniform temperature and pressure control by integrating a carbon nanotube heating film, and dynamically adjusts the flow channel cross-sectional area to cope with viscosity changes and temperature fluctuations.
It achieves uniform distribution of melt among multiple cavities, reduces cavity filling deviation, improves processing efficiency and quality stability, and increases production efficiency by 30% to 50%.
Smart Images
Figure CN224510295U_ABST
Abstract
Claims
1. A hot runner manifold structure for multi-cavity synchronous injection molding, comprising a main manifold (1) and a secondary manifold (2), characterized in that: The outer surface of the main flow divider (1) is fixedly connected to an injection interface (3), the output end of the injection interface (3) is fixedly connected to a spiral flow guide cavity (4), the output end of the spiral flow guide cavity (4) is fixedly connected to an injection flow guide channel (5), the injection flow guide channel (5) is fixedly connected to the secondary flow divider (2), the secondary flow divider (2) is provided with a driver (6), the output end of the driver (6) is fixedly installed with a hydraulic component (7), the output end of the hydraulic component (7) is telescopically connected to the inside of the injection flow guide channel (5), and a pressure sensor is provided on the outer surface of the hydraulic component (7).
2. The hot runner manifold structure for multi-cavity simultaneous injection molding according to claim 1, wherein: The outer surfaces of the main flow divider (1) and the secondary flow divider (2) are provided with carbon nanotube heating film integration (8), and the outer surfaces of the carbon nanotube heating film integration (8) are provided with mounting plates (9). The outer surfaces of the mounting plates (9) are provided with fixing bolts. The mounting plates (9) are fixedly connected to the main flow divider (1) and the secondary flow divider (2) through the fixing bolts. The carbon nanotube heating film integration (8) is fixedly connected to the main flow divider (1) and the secondary flow divider (2) through the mounting plates (9).
3. The hot runner manifold structure for multi-cavity simultaneous injection molding according to claim 1, wherein: The outer surface of the injection interface (3) is provided with a ceramic sealing ring (11) and a corrugated elastic ring, and the output end of the injection flow channel (5) is provided with a composite sealing structure.
4. The hot runner manifold structure for multi-cavity simultaneous injection molding according to claim 1, wherein: The spiral guide cavity (4) has a spiral angle of 30°-60° and a radius of curvature of ≥5mm. The inner wall of the spiral guide cavity (4) is provided with guide vanes (10).
5. The hot runner manifold structure for multi-cavity simultaneous injection molding according to claim 2, wherein: A temperature sensor is integrated at the junction of the main flow divider (1) and the secondary flow divider (2) with the carbon nanotube heating film integration (8). The carbon nanotube heating film integration (8) adopts a magnetic modular design. A controller is provided on the outer surface of the main flow divider (1). The controller is electrically connected to the driver (6), the carbon nanotube heating film integration (8), the temperature sensor integration, and the pressure sensor.