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Loveshaw Little David CF25 Operator's Manual

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LOVESHAW
Little David™ Case Sealer
CF25
Case Erector
Version: P – Valid from October, 2019
P/N: CF25-OM
Operator' s Manual

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  • Page 1 LOVESHAW Little David™ Case Sealer CF25 Case Erector Version: P – Valid from October, 2019 P/N: CF25-OM Operator’ s Manual...
  • Page 2 Little David™ CASE ERECTOR CF25 Operation Copyright  Loveshaw Loveshaw, Inc. 2206 Easton Turnpike, PO. Box 83 South Canaan, PA 18459 Tel: 1-800-962-2633 • 570-937-4921 Fax: 570-937-4016 www.loveshaw.com Loveshaw Europe Unit 1 Newton Park West Portway Industrial Estate Andover, Hampshire SP10 3SH...
  • Page 3 The information contained in this manual is correct and accurate at the time of its publication. LOVESHAW reserves the right to change or alter any information or technical specifications at any time and without notice. ©2016 LOVESHAW. All rights reserved Printed in the United States of...

  • Page 4: Table Of Contents

    TABLE OF CONTENTS Introduction Operating Safety Instructions Warnings Cautions Safety Devices Functional Testing Overview Case Sealer Sections Machine Specifications Installation Section 1: Placing the Machine Section 2: Important Considerations Theory of Operation Theory of Operation for Chain Drive Machines Theory of Operation for Belt Drive Machines Operating Procedures Set Up Procedure Loading the Hopper...
  • Page 5 Checking Solenoid Valves Checking PLC Inputs and Outputs Tape Cartridge and Taping Issues Troubleshooting Table Warranty Mechanical Drawings and Schematics Standard Universal Mechanical Drawings Standard Chain Drive Mechanical Drawings Standard Belt Drive Mechanical Drawings Special Options Mechanical Drawings Pneumatic Drawings and Schematics Standard Chain Drive Pneumatic Drawings Standard Belt Drive Pneumatic Drawings Electrical Drawings and Schematics...
  • Page 6 (This space is intentionally blank. Continue to next page.)

  • Page 7: Introduction

    Chapter INTRODUCTION hank you for purchasing the Little David™ case erector, the CF25. The CF25 is an automatic case erector and bottom sealer. The CF25 is a robust built 24/7 case erector constructed of quality materials, bearings, pneumatic and electrical components. All employees who will be required to operate and maintain the case erector must read this manual to ensure safe operation as well as proper set-up and maintenance throughout the life of the machine.

  • Page 8: Operating Safety

    Little David Case Erector functions best when maintained and used correctly. Observe the warnings and cautions below when using the Little David CF25 case sealer. Within this manual, on page 5, all safety labels are depicted with location and part numbers. If a safety, label is missing or not legible it must be replaced immediately.

  • Page 9: Warnings

    Warnings Warnings help prevent potential bodily injury. Warning: This machine is equipped with moving parts. Do not place hands in the machine when parts are moving. Always use a roller-type exit conveyor, and always remove boxes after they clear the exit end of the machine. Warning: Always disconnect all sources of energy to the machine before performing maintenance.

  • Page 10: Safety Devices Functional Testing

    Safety Devices Functional Testing It is necessary to test the functionality of the safety devices at regular time intervals. The safety emergency stop function must be tested daily before each and every shift of operation. The procedure for testing the emergency stop function is as follows: 1.

  • Page 12: Case Sealer Sections

    Chapter OVERVIEW Case Sealer Sections This manual covers several parts of the machine. The following diagram identifies the some key sections of the machine. Vertical Feed Assembly Hopper Assembly Box Opening Assembly Sled Assembly Main Drive Assembly Flap Folder Machine Guard Assembly Assembly Cartridge...

  • Page 13: Machine Specifications

    Machine Specifications Machine dimensions:  Height: 75.75”  Length : 75.13”  Width: 43.25”  Standard Discharge Height: 23”  Weight: 1100 lb. uncrated Electrical Requirements:  Standard Voltage: 120/1/60 with 15 amp dedicated service. Operating speed:  Cases per Minute: 10 for standard machines (up to 15 c.p.m. options available) Air Requirement ...
  • Page 14 Machine Options:  Spare Parts Kit  Special Electronics  Custom Color  Casters  Low Tape Alarm  Low Hopper Alarm  Box Jam Alarm  Leg Extensions  High Speed (12, 14, & 15)

  • Page 15: Installation

    INSTALLATION lways check for any signs that the machine may have been damaged before fully removing it from the shipping skid. If machine arrives damaged contact Loveshaw immediately to help in filing a claim with the shipping company. Exercise care when handling this machine, a sudden jolt or jar may cause serious damage.

  • Page 16: Section 2: Important Considerations

    Before starting the machine, load a new roll of tape on the cartridge and Step Five: thread the tape according to the arrows on the unit. Step Six: For proper start-up procedure, see the start-up procedure section of this manual. Section 2: Important Considerations •...

  • Page 17: Theory Of Operation

    Chapter THEORY OF OPERATION Theory of Operation for Chain Drive Machines he Machine E-Stop circuit is reset and the machine is started. All the cylinders go to their home position and the machine is ready to operate. Selector switch, SS1, is set to Automatic mode which will allow the machine to operate continuously.
  • Page 18 When Prox6 is triggered vacuum is applied to the cup on the box opening arm. Solenoid SV8 is energized. With the blank being held on both sides with vacuum cups, the opening arm is rotated back to its home position making cylinder proximity switch Prox5. Solenoid valve SV2 is de-energized. With the box open the minor flap folders rotate upwards closing he flaps.

  • Page 19: Theory Of Operation For Belt Drive Machines

    Theory of Operation for Belt Drive Machines o start the machine, all guard doors must be closed, with the E-Stop reset. All cylinders will travel to their home position. The downstream photo eye, PE1, must be clear for machine to run. With blanks properly loaded in the hopper, proximity switch, Prox7, will be made, allowing the operation sequence to continue.

  • Page 20: Operating Procedures

    Chapter OPERATING PROCEDURES Set Up Procedure Determine the length, width and height (with flaps up) of box in inches (see diagram). Important: Use scales and yellow pointers. Due to changes in design for continual improvement, the set-ups depicted in the steps below might not be exact, but similarities should exist.
  • Page 21 1) Hopper, Near Side – Set equal to width. Pointer and Scale Lock- handle 2.A) Hopper, Far Side – Use the blank (flat box) to set position. Leave 1/4” of extra room. 1/4” Gap Lock-handle...
  • Page 22 2.B) 3rd Vacuum Cup – Adjust to widest position possible without cup hitting vertical box guide. Tighten lock knobs securely. 3) Vertical Trolley Stop – Set equal to width. Tighten securely. Pointer and Scale Lock-handle...
  • Page 23 4) Box Opening Arm – set equal to width (arm in open position). Adjust vacuum cup to land in center of major panel. 5) Flap Folder – Set to length. Lock Handle Pointer and Scale...
  • Page 24 6) Lug Drive – Set to width. Pointer and Scale Crank Handle 7) Sled Height – set to erected box with top flaps up. Pointer and Scale Lock-knob 8) Run one box in step (manual) mode to verify settings.

  • Page 25: Loading The Hopper

    Loading the Hopper 1) Make sure the hopper is correctly set up based on the outside dimensions of the erected box. a. The blanks must be loaded with the major panel toward the operator side when facing the vacuum cups. If the blanks are not loaded this way the box will jam in the forming section.

  • Page 26: Sequence Of Operation

    Sequence of Operation 1) Initial condition of machine: hopper filled with blanks (boxes that are flat, as received). Emergency stop push button re-set, electrical and compressed air power turned on, machine mode selector switch turned on to run position, safety guards closed. 2) Depress the start push button.

  • Page 27: Shut-Down Procedure

    Shut-Down Procedure Control Stop: 1) Turn selector switch to test position. Wait until machine finishes processing box. 2) Depress emergency stop push button. Emergency Stop: 1) Depress emergency stop push button. 2) Remove any unmade or jammed boxes before restarting machine. (This space is intentionally blank.

  • Page 28: Maintenance

    Chapter MAINTENANCE Safety: NEVER perform any maintenance on the CF25 without first following your company’s LOCK OUT / TAG OUT procedures. Chain and Lug Drive Maintenance CF25 chain drive machines have a dual spring chain tensioner on either side of the main drive assembly. For the convenience of servicing the chain, the tensioned sprocket mounts were designed with a clearance hole, which aligns with a threaded hole on the main drive.
  • Page 29 Clearance Hole 5/16-18 x 3” Bolt Threaded Hole Figure 1. Inserting bolt into clearance hole. Figure 2. Tightening bolt to compress tensioner springs.

  • Page 30: Side Belt Drive Maintenance

    Side Belt Drive Maintenance CF25 belt drive machines are not self-tensioning. The following instructions will assist in the tensioning of the side belts, or replacing worn belts. 1. For ease of maintaining belt tension, the belt arm door allows convenient access to the tensioning block.
  • Page 31 Locking Screw Idler Pulley Tensioning Block Figure 4. Tensioning the idler pulley. (This space is intentionally blank. Continue to next page.)

  • Page 32: Cf25 Preventative Maintenance Schedule

    CF25 Preventative Maintenance Schedule Follow the PM chart below according to the specified time intervals to maintain and enhance machine functionality and longevity. Frequency: Weekly Monthly 1. Inspect air filter and drain. 2. Inspect and clear the vacuum generator and the (3) in-line vacuum filters.

  • Page 33: Spare Parts

    Spare Parts See Appendix C for a complete list of recommended spare parts. (This space is intentionally blank. Continue to next page.)

  • Page 34: Troubleshooting

    Chapter TROUBLESHOOTING Preliminary Checks Check that electrical or air power has not been disconnected. Check for leaking or disconnected airlines. Check electrical fuses for continuity. Using Test Mode to Troubleshoot Machine  Close all guard doors and make sure the emergency stop push button is not depressed. ...
  • Page 35  With the machine in the test mode, depress and hold an override button to determine if the valve is able to actuate the pneumatic device that it’s connected to.  Also check that the valve is receiving electrical power. There are indicator lights built into the coils of the valves to aide in trouble shooting.
  • Page 36 5) Vacuum hoses are clogged or 4) Inspect, repair, or replace damaged. vacuum generator. 5) Replace inline filter cartridges in vacuum system with clean, new cartridges; check vacuum hoses for clogs; replace hoses/fittings. 1) Check PLC output 4. It should be 1) Check suggested PLC inputs lit.
  • Page 37 5) There is a mechanical bind or jam. or jam. 6) The air flow controls are malfunctioning. 1) Check PROX 1 at rear of transfer 1) Check suggested PROX/PLC cylinder. It should be lit. inputs and outputs. 2) Check PLC input 2. It should be 2) Check air lines to solenoid 6;...
  • Page 38 1) Chain lugs are not square to each 1) See mechanical section to Box not square other. adjust lugs to be square. after taping. 2) Box squaring assembly is not 2) Adjust controls on box functioning properly. squaring assembly. Major flaps 1) Main drives are not properly set.
  • Page 39 Chapter WARRANTY For a detailed, up-to-date warranty, contact our customer service or view it on our website.
  • Page 40 Chapter MECHANICAL DRAWINGS AND SCHEMATICS Standard Universal Mechanical Drawings The drawings and schematics in this section represent the mechanical layouts common to all CF25 machines.
  • Page 48 Standard Chain Drive Mechanical Drawings The drawings and schematics in this section represent the mechanical layouts specific to standard, CF25, chain drive machines.
  • Page 51 THIS DRAWING AND SUBJECT MATTER THEREON IS THE EXCLUSIVE PROPERTY OF DWG NO SCALE = .3mm METRIC FINISH LOVESHAW-ITW AND IS TO BE TREATED BY YOU AS CONFIDENTIAL PRPRIETARY .XXX = .1mm INFORMATION. THIS DRAWING OR SUBJECT MATTER THEROF SHALL NOT BE CHECKED MATERIAL...
  • Page 52 THIS DRAWING AND SUBJECT MATTER THEREON IS THE EXCLUSIVE PROPERTY OF DWG NO SCALE METRIC = .3mm FINISH LOVESHAW-ITW AND IS TO BE TREATED BY YOU AS CONFIDENTIAL PRPRIETARY .XXX = .1mm INFORMATION. THIS DRAWING OR SUBJECT MATTER THEROF SHALL NOT BE MATERIAL CHECKED...
  • Page 64 Standard Belt Drive Mechanical Drawings The drawings and schematics in this section represent the mechanical layouts specific to standard, CF25, belt drive machines.
  • Page 67 THIS DRAWING AND SUBJECT MATTER THEREON IS THE EXCLUSIVE PROPERTY OF DWG NO SCALE = .3mm METRIC FINISH LOVESHAW-ITW AND IS TO BE TREATED BY YOU AS CONFIDENTIAL PRPRIETARY .XXX = .1mm INFORMATION. THIS DRAWING OR SUBJECT MATTER THEROF SHALL NOT BE CHECKED MATERIAL...
  • Page 68 THIS DRAWING AND SUBJECT MATTER THEREON IS THE EXCLUSIVE PROPERTY OF DWG NO SCALE METRIC = .3mm FINISH LOVESHAW-ITW AND IS TO BE TREATED BY YOU AS CONFIDENTIAL PRPRIETARY .XXX = .1mm INFORMATION. THIS DRAWING OR SUBJECT MATTER THEROF SHALL NOT BE MATERIAL CHECKED...
  • Page 76 Special Options Mechanical Drawings The drawings and schematics in this section represent the mechanical layouts of special options that can be custom ordered.
  • Page 77 Chapter PNEUMATIC DRAWINGS AND SCHEMATICS Standard Chain Drive Pneumatic Drawings The drawings and schematics in this section represent the pneumatic layouts specific to standard, CF25, chain drive machines.
  • Page 80 Standard Belt Drive Pneumatic Drawings The drawings and schematics in this section represent the pneumatic layouts specific to standard, CF25, belt drive machines.
  • Page 83 Chapter ELECTRICAL DRAWINGS AND SCHEMATICS Standard Universal Electrical Drawings The drawings and schematics in this section represent the electrical layouts common to all CF25 machines.
  • Page 84 AB MICRO830 Optional PLC: AB MICRO850 NOTE: Check the title block on panel assembly correlated to the specific machine before ordering replacement PLC. Contact Loveshaw Customer Service for assistance if necessary. (This space is intentionally blank. Continue to next page.)
  • Page 85 120 Volt, 60 Hz, Standard Chain Drive Electrical Drawings The drawings and schematics in this section represent the electrical layouts related specifically to standard, chain drive 120V rated machines.
  • Page 93 120 Volt, 60 Hz, Standard Belt Drive Electrical Drawings The drawings and schematics in this section represent the electrical layouts related specifically to standard, belt drive, 120V rated machines.
  • Page 102 240 Volt, 60 Hz, Non CE Compliant, Standard Chain Drive Electrical Drawings The drawings and schematics in this section represent the electrical layouts related specifically to standard, chain drive, 240V rated machines that are not CE compliant. NOTE: Not all machines are CE compliant – determine the specifications of the machine in order to reference the proper drawings and schematics within this manual.
  • Page 110 240 Volt, 60 Hz, Non CE Compliant, Standard Belt Drive Electrical Drawings The drawings and schematics in this section represent the electrical layouts related specifically to standard, belt drive, 240V rated machines that are not CE compliant. NOTE: Not all machines are CE compliant – determine the specifications of the machine in order to reference the proper drawings and schematics within this manual.
  • Page 111 240 Volt, 50 Hz, CE Compliant, Standard Chain Drive Electrical Drawings The drawings and schematics in this section represent the electrical layouts related specifically to standard, chain drive, 240V rated machines that are CE compliant. NOTE: Not all machines are CE compliant – determine the specifications of the machine in order to reference the proper drawings and schematics within this manual.
  • Page 120 240 Volt, 50 Hz, CE Compliant, Standard Belt Drive Electrical Drawings The drawings and schematics in this section represent the electrical layouts related specifically to standard, belt drive, 240V rated machines that are CE compliant. NOTE: Not all machines are CE compliant – determine the specifications of the machine in order to reference the proper drawings and schematics within this manual.
  • Page 121 230 Volt, 3 Phase, 60 Hz, Standard Chain Drive Electrical Drawings The drawings and schematics in this section represent the electrical layouts related specifically to standard, chain drive, 230V rated, 3 phase machines.
  • Page 122 230 Volt, 3 Phase, 60 Hz, Standard Belt Drive Electrical Drawings The drawings and schematics in this section represent the electrical layouts related specifically to standard, belt drive, 230V rated, 3 phase machines.
  • Page 123 460 Volt, 3 Phase, 60 Hz, Standard Belt Drive Electrical Drawings The drawings and schematics in this section represent the electrical layouts related specifically to standard, belt drive, 460V rated, 3 phase machines.
  • Page 124 460 Volt, 3 Phase, 60 Hz, Standard Belt Drive Electrical Drawings The drawings and schematics in this section represent the electrical layouts related specifically to standard, belt drive, 460V rated, 3 phase machines.
  • Page 139 Chapter APPENDICES Appendix A: Available Special Options BOX JAM DETECTION SENSOR: P/N: A219‐PF‐13 LOW TAPE DETECTION SENSOR: P/N: 303527 LOW HOPPER DETECTION SENSOR: P/N: 302575...
  • Page 140 Appendix B: B-LOC Instructions (This space is intentionally blank. Continue to next page.)
  • Page 141 INSTALLATION AND REMOVAL INSTRUCTIONS FOR 7. Reset torque wrench to speci¿ ed torque (M a ) and check all locking screws. B-LOC® KEYLESS BUSHING SERIES B109 No screw should turn at this point, otherwise repeat Step 6 for 1 or 2 more passes.
  • Page 142 Appendix C: Recommended Spare Parts List (This space is intentionally blank. Continue to next page.)
  • Page 143 KNURLED KNOB SPR-1059 EXTENSION SPRING HC-1045 RATCHET HANDLE N401-362 CYLINDER, VERTICAL FEEDER STANDARD (10 CPM) N401-363 CYLINDER, VERTICAL FEEDER HIGH SPEED (>10 CPM N402-133 SOL VAVLE N402-142 AIR PILOTED VALVE N669 AIR FILTER AIR A125SB-10-R FUSE A125SB-3-R FUSE A125SB-2/10- FUSE www.loveshaw.com...

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