According to its technology strength and experience in auxiliary equipment field, Dingyuan can meet all kinds of demands from plastics conveying, dehumidifying and drying; mold heating and cooling; recycling to color management. Adopt intelligent energy-saving control technology to monitor the material processing, Dingyuan can provide different solutions according to different requirements from the customers.
Cooling System
The chiller of Dingyuan can provide accuracy control of temperature, flow and pressure, cooling effects can be played to the limit. Chillers can be divides into two types, water-cooled and air-cooled. There are other parts of the cooling system, such as cooling tower, pump and water tank. Based on the standard equipment and technology, Dingyuan can come up with individual solutions to meet different kinds of requirements.
Automatic Conveying & Feeding System
All material contact surfaces and filtering devices of the plastic material conveying system are made of stainless steel to ensure that the PET material will not be contaminated during the conveying process.
The flexible air supply adjustment system can avoid stringing and dust caused by different conveying conditions by adjusting the conveying speed.
For the high-temperature transportation of PET, Dingyuan specially proposed a solution with water cooling function to reduce the risk of high-temperature material transportation.
Closed-loop two-stage conveying system. For material transportation in the hopper of the injection molding machine, Dingyuan can greatly reduce the risk of heat dissipation and material rewetting.
Drying System
In PET preform system, drying becomes the most critical step which must be seriously taken and the moisture in the material must be removed at a reasonable temperature.
Dingyuan dehumidifying dryer can provide dew-point of -40℃ or even lower. Also it can achieve constant detection of all the parameters and stabilize the dew-point.
Dew-point of traditional dehumidifiers can not be set and the machines are working full-loaded. However, the humidity requirements of PET material processing are always rigorous. Therefore, the dew-point must be set and controlled properly. Differ from traditional dehumidifier, the new Dingyuan model combines the settable dew-point together with the regenerating control greatly saves the energy.
Color Dosing System
DY-CD model of Dingyuan is suitable for masterbatch particles both crystallized and non-crystallized with output within 0.2~32kg/hr. If the masterbatch proportion and precision is demanding, DY-GD model is suggested which adopt loss-in-weight calculation with output within 0.04~32kg/hr.
The inner cooling water system can prevent masterbatch from falling into the PET main stream and melting. Thus ensures accurate dosage. Molding cycles of adding masterbatch can be set to meet the requirements of micro weight measuring.
Gravimetric Blender
With gravimetric sensor and material level switch, the special gravimetric blender designed for high temperature material is suitable for PET crystallized materials.
Ethernet interface attached to the controller works together with the relevant software, material proportion data (max. output, actual output, proportioning accuracy) can be transmitted to control product quality. Recalibration will be automatically started after each weighing to ensure optimal proportion accuracy. Regrinds auto compensation function available. Aberration compensation can be automatically calculated based on the discharge amount of material.
Special bridge-breaking structure and discharge way are used to meet all the requirement of sheet material dosing and at the same time ensure the continuity of the operation.
PET Crystallizer
Dingyuan PET crystallizer is specially designed for the homogeneous crystallization as well overcoming glass transition temperature. Also it can avoid material bonding and bridging. With models from DY-SH160U to DY-SH1600U, the hopper capacity ranges from 160 to 1,600 liters.
The material level switch can help adjust the running mode of both the crystallizer and the feeding device based on the actual material level it detects. Adopt accurate temperature detection system and rotary valve equipped at the material discharge port to ensure constant crystallization and avoid material degradation.
