Conveyor Hazards and Safety Overview
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Questions and Answers

What is the primary purpose of the guide rails in the conveyor system?

  • To hold bottles in place during transfer
  • To increase the speed of the conveyor
  • To prevent metal to glass contact (correct)
  • To detect the presence of bottles
  • What risk is associated with body parts coming into contact with the running equipment?

  • Risk of slipping on wet surfaces
  • Risk of burns from heated surfaces
  • Risk of getting cut or caught (correct)
  • Risk of electric shock
  • How does the parabolic curve of the guide rail benefit the bottle flow?

  • It allows for faster bottle speeds
  • It provides equal pressure at each point (correct)
  • It prevents bottle collisions
  • It reduces motor friction
  • What is the role of the frequency converter in the conveyor system?

    <p>To electronically control the speed of the conveyor</p> Signup and view all the answers

    Which of the following statements is true regarding lubrication on bottle conveyors?

    <p>It reduces friction between bottles and the steel chain</p> Signup and view all the answers

    What happens if there is metal to glass contact during the bottle transfer process?

    <p>Bottles can get scratched and scuffed</p> Signup and view all the answers

    What can cause jams and bottle locking in the conveyor system?

    <p>Excess pressure during bottle flow</p> Signup and view all the answers

    What is the major risk associated with bursting or falling bottles on the conveyor?

    <p>Very high risk of injury from broken glass</p> Signup and view all the answers

    What is the maximum allowable elongation for 20 rows in a chain conveyor system?

    <p>3%</p> Signup and view all the answers

    What should be assessed to determine unusual wear patterns on a chain?

    <p>The evenness of the chain</p> Signup and view all the answers

    When should the sprockets be replaced in a chain conveyor system?

    <p>Upon observing excessive wear</p> Signup and view all the answers

    What aspect of the chain conveyor system’s lubrication should be inspected?

    <p>The lubrication system's operational status</p> Signup and view all the answers

    What is the consequence of excessive wear on the top plates of chain conveyors?

    <p>They cannot exceed 50% of their original thickness</p> Signup and view all the answers

    Which of the following inspections is NOT associated with chain conveyor maintenance?

    <p>Measuring the output speed of the conveyor</p> Signup and view all the answers

    What does excessive clearance between chain links likely indicate?

    <p>Chain may be overloaded</p> Signup and view all the answers

    What parameters are crucial for the operation of an ECOPUSH system?

    <p>Start position, stroke, acceleration</p> Signup and view all the answers

    What is the consequence of insufficient lubrication on a chain conveyor?

    <p>Jams, fallen bottles, and overloaded motors</p> Signup and view all the answers

    What can excess chainlube result in when passing in front of the Empty Bottle Inspector?

    <p>Foam accumulation leading to bottle rejection</p> Signup and view all the answers

    What should be done when maximum elongation of the chain reaches 3%?

    <p>Shorten the flat-top chain</p> Signup and view all the answers

    When does foam from excess chainlube typically cause issues?

    <p>After the Labeller and during inspection</p> Signup and view all the answers

    What is the maximum length of 20 links of a new stainless steel chain?

    <p>762 mm</p> Signup and view all the answers

    What kind of inspections are required during the operation of a chain conveyor?

    <p>Regular inspections of chain and sprockets</p> Signup and view all the answers

    What diameter measurement is needed to maintain a chain conveyor?

    <p>Diameter of the drive sprocket</p> Signup and view all the answers

    Which of the following indicates that the chain needs to be replaced?

    <p>Elongation reaches more than 3%</p> Signup and view all the answers

    Study Notes

    Conveyor Hazards

    • High risk of cuts and body parts getting caught in conveyor systems.
    • Hazards include pressure from bursting/falling bottles, falling bottles, and contact with running equipment.

    Main Components

    • Key elements of the conveyor include guide rail, stainless steel frame, drive motor, and slat chain.

    Guide Rail Functionality

    • Prevents bottles from falling while guiding them without metal-to-glass contact to avoid scratches.
    • Essential for directing bottle flow without excess pressure to prevent jams.
    • Features a parabolic curve to gradually direct bottles to the next conveyor, ensuring equal pressure distribution.

    Transfer Mechanism

    • Utilizes a fixed-speed setup with a gear ratio adjusted by a frequency converter for electronically controlled speeds.

    Sensors and Detection

    • Includes "cloth hanger" sensors, photocells for bottle presence detection, and system responses for a full line.

    Lubrication System

    • Requires 1%-2% diluted liquid soap as lubricant on the conveyor chain to minimize friction.
    • Insufficient lubrication can lead to jams, motor overloads, and rejects due to foam accumulation, which may interfere with bottle inspection.

    Chain Conveyor Inspections

    • Regular inspection of chains, sprockets, and entire conveyor system is critical for preventing malfunctions and addressing issues proactively.
    • Essential inspection topics include checking chain sag, measuring elongation (maximum 3% elongation), and unusual wear patterns.

    Specific Inspection Guidelines

    • For stainless steel chains: replace if elongation exceeds 20 links = 784mm, with a new measurement of 20 links = 762mm.
    • For plastic chains: maximum elongation over 20 rows should not exceed 3% (from 508mm to 523mm).

    Wear and Clearance Checks

    • Monitor clearance between chain links, dead plates, and turntables, along with checking for excessive wear on top plates and sprockets.
    • Inspect for dirt buildup in sprocket tooth pockets and misalignment of flanged wheels.

    Lubrication and Operational Checks

    • Verify the lubrication system's function, the condition of curve glide strips, return rollers' rotation, and drive shaft bearings.
    • Assess the operational state of drive and reducer components for optimal performance.

    ECOPUSH Parameters

    • Essential parameters include start position, stroke, and acceleration for effective operation.

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    Description

    This quiz covers the hazards associated with conveyors, particularly focusing on the risks of cuts and injuries from falling bottles and contact with moving parts. It also reviews the main components of conveyor systems to ensure safety awareness and compliance.

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