Sterling AF-XXX Functional Description, Models Covered in This Manual, General Description

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Chapter 2: Functional Description

2-1 Models Covered in This Manual

This manual provides operation, installation, and maintenance instructions for 1 and 2 component additive feeders. Model numbers are listed on the serial tag. Make sure you know the model and serial number of your equipment before contacting the manufacturer for parts or service.

Our additive feeders are designed to precisely feed up to two components before being used in the injection molding, blow molding or extrusion processes. Additive Feeders are configured to meet the specific requirements stated by the Customer at the time of purchase.

2-2 General Description

Our additive feeder is a highly accurate unit designed to feed one or two additives into a stream of virgin plastic pellets prior to injection molding, blow molding, or extrusion. Such additives may include color, regrind, or other free-flowing pelletized or granular materials. The additive feeder may also be appropriate for other applications. Consult the manufacturer for additional information.

2-3 Standard Features

Mechanical Features

Transport Tube

•Stainless steel augers available in ½”, ¾”, 1”, 1-1/4” and 1-1/2” sizes

•Augers/insert assemblies are interchangeable without tools

•UHMW polyethylene auger insert is durable and easily cleaned

•Calibration hatch opens without tools

•Cleanout hatch below the flood zone opens without tools and allows the supply hopper to dump completely.

•Lightweight aluminum casting

Main Throat

•Low profile design adds only 6 inches to supply system headroom requirements

•Accommodates one or two additive feeders

•Sturdy steel construction with sight glasses to visually confirm proper operation

Supply Hopper

•1 or 2 cubic-foot capacity

•Design based on dynamic/static material flow characteristics

•Angled hopper geometry allows use with 60º machine supply hoppers

•Easy, fast, and complete cleanout

•Sight glasses give visual level indication

•Manual fill cover standard

Additive Feeders

Chapter 2: Functional Description

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Contents SF Series Additive Feeders Shipping Information Table of Contents Program Parameter Descriptions Safety Symbols Used in this Manual SafetyHow to Use This Manual Wear Safety Glasses and Work Gloves General Responsibility ResponsibilityRemember Operator ResponsibilityMaintenance Responsibility Additive Feeder Safety TagsReporting a Safety Defect Models Covered in This Manual Standard FeaturesMechanical Features Functional DescriptionOptions Electrical FeaturesController Features Safety Devices and Interlocks AccessoriesFail Safe Operation Safety Circuit StandardsSafety Device Lock-Outs Rigging and Placing the Additive Feeder InstallationSupply System Installation Uncrating the EquipmentControl Relay Connection Main Power ConnectionElectrical Connections Determining the Desired Feed Rate Setup Procedures110 100 Equipment Needed Calibration ProcedureProcedure Observed Feed Rates ExamplesShutting Down the Additive Feeder Initial Start-upPre-Startup Checks Starting Up the Additive FeederStart-up Timer ModuleUsed as a Cycle Override Safety Timer OperationElapsed Time Module Counter ModuleField Control Programming Injection Molding ApplicationsInjection Molding Control Relay ConnectionProgramming Step by Step Guide Resetting the Unit to Un-Programmed StateJP1 Program Enable Jumper Additive Feeders Operation Injection Mode Application Notes Extruder Tracking Control Extrusion ApplicationsExtruder Tracking Equation Extruder Tracking Installation and SetupValue Mode Running ModeParameter-Selection Mode Resetting the Unit to Un-Programmed State Minimum Input Pulse Rate Input Pulse Signal RequirementsExtruder Tracking Control Application Notes Minimum and Maximum Percent Setpoints Maximum Input Pulse RateDefining Program Parameters Program Parameter DescriptionsMode 1 Default to Zero Parameter 19 Power-up Value Parameter 35 Signal Input 2 S2 Input Configuration Parameter 36 Signal Input 2 S2 Setpoint Photocopy this page for your maintenance records MaintenancePreventative Maintenance Schedule Material Cleanout/Changeover Preventative MaintenanceInstalling Auger Assembly Corrective MaintenanceAuger Assembly Changeover Removing Auger AssemblyMotor Brush Replacement Introduction TroubleshootingProblem Possible cause Corrective action Problem Possible cause Corrective action Additive Feeders Troubleshooting Annex B Information Technical SpecificationsAppendix Additive Feeder Specifications and Overall Dimensions Drawings and DiagramsTypical Additive Feeder Controllers Exploded Assembly Drawing Parts List Spare Parts ListDetail # Part number Part/assembly description One Component Control Enclosure Parts Identification Credit Returns Safety Tag InformationWarranty Returns Returned Material PolicyCompany Logo Additive Feeder Identification Serial Number TagSterling, Inc Th Street New Berlin, WI Technical AssistanceWorksheet for Charting Feed Rates