Medical and Optical System Solution

System Introduction

 

Recent years has witnessed the innovation of plastic used in medical field that traditional materials can not achieve. The constant increasing medical charge drives the consumer to seek for more efficient way to lower the cost. Then disposable medical parts emerged to replace the disinfectant glass products and now they are widely used in medical field.

 

Generally, plastics used in medical field are PA, PET, PEEK, PLLA/PDLA and PC etc.

 

For the production of medical parts is specific, the requirements on processing equipments are restrictive. Normally the production of medical parts needs the injection molding equipments repeatedly, highly-stably and safely forms high-quality parts within a very short cycle time.

 

During medical parts production, any foreign materials and non-certified parts are prohibited from contacting; therefore the production must be taken place in clean rooms.

 

Shini Dominance

 

Low cost, stable operation and maintenance reduce the management risk of the equipments and enhance market competitiveness.
 

Customer-oriented design to come up with personalized solutions and reserve space for future expansion according to different requirements.

 

Control strength to combine independent control of each unit with centralized control of the whole units.

 

Rich experience in project and engineering management ensures the whole process from design to installation to put into service and lower the cost.

 

Conveying

 

During material conveying, pollution can only be caused by the contact equipment and air with material. The conveying equipment of Shini optical system adopts food grade stainless steel and the air entering into the system is filtered to meet the clean room requirements.

 

1.Pipeline is made of SUS304 stainless steel or glass, the special pipe coupler helps to achieve seamless connection;

 

 

2.Hose channel adopts PU pipe and copper wire connect to ensure no static electricity;

 

3.All pipelines meet the national GB/T14975-94 standard;

 

4.Each feeding unit equips with stainless steel shut-off valve ensures no impurities caused by friction, also there are cleaning process after each feed cycle;

 

5.With HEPA high-efficiency particulate absorbing filter, filtration precision can reach 0.3µm and filtration efficiency can reach 99.995%;

 

 

6.powder-removing hoppers SHR-CP are equipped to remove subtle powder and help to prevent stain in the molding of optical products.

 

 

Drying

 

1.Return air loop equips high- efficiency dust-separator to make sure the drying air can be fully filtered.

 

2.Drying system equips HEPA high- efficiency particulate absorbing filter to filter tiny dust of 0.3µm and filtration efficiency can reach 99.995%; 

 

3. All material contact surfaces adopt SUS304 stainless steel with polishing, together with the air-tight feeding system; the materials are protected from being polluted and moisture regain;

 

4.Hermetic two-stage conveying system can help reduce the heat loss and the risk of material moisture regain during the conveying of hot material or material after drying to the hopper located on the injection molding machines.

 

5.Real time monitoring of material level.

 

Storage

 

1.Storage tank made of SUS304 stainless steel with inner wall polished to protect material from being polluted;

 

 

2.Hermetic structure protects material from being polluted by the outside air;

 

3.Special air refill equipment installed at the discharge port to make material conveying more fluent;

 

4.When HEPA is not in the consideration of the customer’s, Shini also provide a simple filter with accuracy of 5µm for use.

 

Mould Temperature

 

Shini develop many kinds of mould temperature controller with heating temperature ranges from 95℃ to 300℃. Equipped with turbo pump, large flow pump, magnetic pump and micro computer controller, our mould temperature controllers can meet all the requirements of different plastics processing.

 

1.Controller adopts 3.2"LCD to visually display the operation;

 

2.Adopt P.I.D. temperature control system to maintain stable mould temperature at any time, control accuracy can reach ±0.5℃;

 

3.High-efficiency high-temperature pumps are optional to meet the requirements of precision mould and mould with small diameter molding cycle;

 

4.Optional RS485 communicating functions and display of mould temperature and return air temperature.

 

Cooling

 

Shini water chillers can achieve accurate control of temperature, flow and pressure, maximized its cooling effect. The cooling products of Sihni consist of air-cooled and water-cooled water chiller, cooling tower, pump and water tank. Based on the standard technology, Shini can provide customized solutions for its clients.

 

The R410A CFC-free refrigerant air-cooled environmental friendly water chiller meets the highest standard that the industry has to offer to protect the environment.

 

 

The newly launched SIIC chiller adopt refrigerant inverter compressor which can change the frequency according to load variation, thus adjust the refrigerating capacity to stabilize the chilled water at a certain temperature, the new chiller can save 15% power consumption than the traditional water chiller.

 

The inner pipeline of the chiller can specially equips with PVC pipes to deal with the low-quality water quality caused to the system performance.

 

The design and installation of the simple and rational pipeline make cooling system operate more stable and as well reduce operation cost for the customer.

 

Dosing

 

Shini volumetric doser SCM can be used to dose both crystallized and non-crystallized material with handling capacity ranges from 0.2 to 32kg/hr.
  

The speed of the dosing screw is accurately controlled by brushless motor and the dosage is precise.

 

The inner cooling cycle can help to avoid masterbatch melting and entering into the main stream; thus ensure the accuracy of the dosing.

 

Modularized installation structure with compulsory material cleaning function makes it easier to replace masterbatch.

 

The current operation mode can be recorded, unaffected by power failure so operation would be return to normal when power is on.

 

The molding cycle times can be set to add masterbatch to meet the dosing requirements.

 

If the precision masterbatch dosage requirements are important and precise, we recommend the customer to choose our gravimetric doser SGD which adopt loss-in-weight dosing method with handling capacity ranges from 0.04 to 32kg/hr.

 

 

Gravimetric Blender SGB

 

With handling capacity of 40~ 3,000kg/hr, Shini gravimetric blenders SGB offers models from 2~8 components.

 

Equipped with Ethernet port through which the production proportion data can be uploaded and product quality can be monitored. In addition, central monitoring can be realized through this port.

 

Automatic recalibration function helps to ensure the optimal proportioning accuracy after each gravimetric dosing.