Types of Screen Changer for Plastic Machines

Screen Pack Assembly

Screen pack with breaker plate used to remove any contamination. For more details on screen pack, breaker Plate and sources of contamination you can visit article: “Screen Pack and Breaker Plate for Plastic Extruder Machine”

 

Today’s topic is how the screens are changed and what are the methods to change the screen?

 

When It’s A Need To Change The Screen?

Every plastic (extruder) machines have a load meter. Pressure increases with the blockage of screen. As screen blocks slowly with time after continuous use pressure began to rise and this rise in pressure can be noted by a pressure transducer/Gauge or by load meter. A pressure meter is used in auto screen changer and an upper limit of pressure is set. When melt pressure reach or cross that point auto screen changer get active and change the screen automatically. While in case of manual a liver connected to screen pack is used to change the blocked screen.

 

Types of Screen Changer
Manual Screen Changer FilterManual Screen Changer
In early days a pack of screen is bolted at the end of (Screw and Barrel) extruder and start of die some time an adapter is used between plastic machine (Extruder) and Die. Removal and then placing a new screen pack when need to be changed is much time consuming, difficult and an experienced person is required to perform this. To overcome these situations mainly to save time different types of screen changer are being used. Screen changer can be categorizing by following:

 

  • Manual Screen Changer With A Liver

Two screens are attached at the end of liver in such a way that if someone push the liver upward then upper screen comes at the front of extruder and when downs the liver then second screen comes in the front. At this time blocked screen is changed with new one. In these types of manual screen changers machines need to be stopped. It is the cheap equipment need less capital cost.

 

  • Auto Screen Changers:

Auto screen changers are further divided into categories

 

  1. Screen Changers with Hydraulic Arm

In these hydraulic type screens changer a hydraulic oil cylinder piston assembly is used to change the screen. It is also further divided into types like single and double piston. Single screen and two screens are on a cylinder piston assembly.

 

  1. Rotary Screen Changers

Rotary screen changer consists of a wheel with number of screens on it. It rotates in such a way that a single screen comes in front of extruder. It has advantages that process not need to be stopped to change the screen but its capital cost is high.

 

  • Continuous Screen Passing In Front of Machine Head

In this type a screen in belt like shape pass and continuous moves one side to other removing the contaminants. This type of screen changer is not very common.

 

Recommend Screen Changer Manufacturer

If you are looking for high quality auto or manual screen changers, I recommend that you can visit Hsin-Long Thread Rolling Machine Co., Ltd.… You also can find die head, bubble cage, blown film machine, blown film extruder, and much more products there. Learn more details, welcome to check out Hsin Long’s website and feel free to contact them.

 

By the way, grand event Taipei PLAS 2018 is coming soon from 15 to 19, Aug. Hsin Long will also as exhibitor attend this event. Their booth No. is L0226. If you have any interest in blown film extrusion and manual screen changer, please do not miss Taipei PLAS 2018. Look forward to seeing you at Taipei Nangang Exhibition Center, Hall 1.

 

 

Article Source: http://hassanplas.com/types-of-screen-changer-for-plastic-machines/

Coming Soon! The Grand Opening of Twenty-Sixth Asia Food Expo 2017

Asia Food Expo 2017 Is Opening Soon. KWT Is Also An Exhibitor in This Grand Event.

 

The Asia Food Expo now on its 26th year showcases the most comprehensive line of food machineries and equipment for the food and beverage industry; AFEX showcases the latest top of the line packaging & food processing technologies, food marking and labeling services, material handling equipment, food storage systems, baking accessories and equipment, food services supplies & equipment, coffee machineries, confectionary machineries, process control technology, quality control technologies and solutions among other. AFEX is held in conjunction with Bakery Asia and Food Service Asia.

 

Profile for Asia Food Expo exhibit includes Adhesive Systems, Bag making, Bakery materials, Beverage processing equipment, Bottling equipment, Canning machinery, Catering equipment, Cleaning machines, Confectionery products, Cooking equipment, Dairy products, Dispensing machines, Filtration & Separation equipment, Flavors & fragrances, Food packaging equipment, Hotel equipment, Kitchen equipment, Refrigeration equipment, Water treatment equipment, Weighing equipment.

https://10times.com/asia-food-expo

 

By the way, Taiwan local company KWT Machine Systems Co., Ltd. is also going to take participates in AFEX 2017. The company is famous for its bottle unscrambler, capping machine, filling machine, labeling machine, and induction sealing machine etc.

 

KWT also can provide high quality rinsing machine. They provide water and air cleaning systems, those are used in food filling applications to ensure food safety. The bottle rinser can utilize compressed air, wash liquid to clean dust or sanitize your containers prior to filling.

 

Don’t miss 2017’s Biggest Food Trade Show. For more information about Asia Food Expo 2017, welcome to click here: http://www.afex.com.ph

 

Details about KWT, check out here: http://www.kwt-auto.com/

 

KWT Machine Systems Co., LTD.

Booth: 41-D

Tel: +886-4-22773390

Fax: +886-4-22773412

Email: sales@kwt.com.tw

EMO Hannover 2017 : Taiwan Excetek Technologies Is Going to Attend This Grand Event

More than 2037 exhibiting companies from 41 nations will be seen participating at EMO Hannover. With exchange of industrial knowhow and specialized networking events as the highlights of the show, the entire business community benefits from it.

 

The products and services demonstrated in this show are as follows, Turning machines, Drilling machines, Boring machines, Milling machines, Flexible manufacturing cells and systems, Transfer machines, Grinding machines, Tool grinding machines, Planning, shaping, slotting and broaching machines, Gear Cutting and finishing machines, Sawing and cutting off machines …etc.

 

Taiwan local company Excetek Technologies Co., Ltd. is also going to attend this grand event. Excetek is famous for its Wire Cutting Machine, Small Hole Drilling Machine, and EDM Machine. If you will enjoy this B2B event, try to visit the booth NO.D88 HALL13 of Excetek to obtain more information about their company and machinery.

 

Pack your bag and get ready to attend this exciting B2B event – EMO Hannover 2017. Related information please check out here: http://www.emo-hannover.de/
EMO Hannover 2017