Operating Instructions
Contents
1. aR ESESESER 0 2 0 4 0 6 0 8 1 0 Material thickness mm allows optimum balancing of stroke cycle rate and mass Pneumatic feed unit type BV 50 40 BV 50 100 deviating dimensions in parentheses Supply line for Feed gripper can be holding gripper relocated through180 Supply line for Supply line for Holdingaripper can be feed gripper Adjustable advance i movement 1 ction A Guide roller t direction movement cushioning relocated through 180 Supply line for movement in direction B pivot connection Feed brace Clamping piston 38 Entry roller Fastening hole replaceable Clamping screw for pan arses Montes ee He can be tipped up D Plug screw stroke setting cap oe er Mn N TE PER Pa j N i TIL j i O N o sive i M idi uC pu re ee ee 30 abe Bozen OD FOr tue pub max co max 3565 max 535 oo max clamping bee t 358 538 noe 32 4 distance be 33201 The information given is liable to modification without notice VALVES ACCESSORIES 457570735 KUH2. I The control signal for valve 20 can be obtained linearly or rotary as required With linear pick up an adjustable control rail must be mounted on the press ram With press strokes over 15 mm only rotary signal pick up is possible In general the rotary type of signal pick up is to be preferred This usually allows one to avoid resetting of the control rail if tools are changed With both types of control the timing of the pulse output for the feed should be selected such that the rams have wiped off and the tape is freely located in the tool The feed should be completed no later than 30 after upper dead centre Example Pneumatic control Pushing normal case Pulling interchange C and D BV 50 40 100 Feed gripper BV 50 40 100 Pneumatic control control item Name 20 Air operated valve solenoid valve VL 8 7 s B 21 Roller lever valve R 3 4 MOC 3 14 only required with Solenoid valve Hand slide valve W 3 26 Pressure regulator LR 4 only with strip or iength stop only withlow pressure for feed Tools with catch pins Where cycling rate and ram stroke permit it is pos sible to momentarily exhaust the holding grippers with tools having catch pins locating pin pilots A solenoid valve type MOC 3 4 24 fitted in line B and operated by means of a cam disc and a limit switch exhausts the holding gripper as soon as the catch pin is inserted in order that the strip can b
3. 219283 FESTO PNEUMATIC Adelaide Athen Auckland Barcelona Bangkok BeloHorizonte Birmingham Bologna Bordeaux Brisbane Bruxelles Budapest Buenos AiresCampinas Cape Town Celje Delft Dublin Duncanville Durban Eibar Eindhoven Firenze Fukuroi G teborg Graz Guadalajara Helsinki Hong Kong stanbul akarta Joinville ohannesburg Kairo Karlskrona K benhavn Kuala Lumpur Leeds LilleLimaLisboaLocarno London Lyon Madrid MalmoManilaMelbourne Mexico City Milano Monterrey Nagoya City Nantes Oslo Padova Paris Perth PortElizabeth Porto Port Washington Porto Alegre Praha Pretoria Puerto Rico Quito Rexdale Ontario Rio d Janeiro Roma San Jose Sao Paulo Sarreguemines Seoul Singapore Sofia Stockholm Sydney Taipei Teheran Tokyo Valencia Warszawa Wien Yverdon Zurich Application For short strokes and fast working cycles e g on high speed presses in mass production in the pre cision electrical and watchmaking industries Feed units can be used to push in front of the tool or to pull behind the tool operating from right to left in each case Proper functioning is ensured in each mounting position Installation The housing of the feed unit has 4 fastening holes 10 and is attached on the press table with socket head cap screws to the tool or to an attachment angle It is advisable to attach the unit such that it can be ver tically adjusted in order that the strip entry can at all times be adjusted to the tool Material adjustment With strips less
4. e centered Hoiding gripper Electro pneum MLC 8 s B Hand slide valve W 3 4 30 Quick connector 31 Quick connector intermediate exhaust tape materialaaainst The solenoid valve Fig 2 item 20 obtains its reversal pulse from an electrical limit switch Reverse control if feed unit is to operate in the Opposing direction 1 Reversal of the feed direction and opposite start ing position of the slide interchange connections C and D 2 Reversal of feed direction with same starting posi tion of the slide interchange connections A and B 3 Reversed starting position of the slide with same feed direction interchange connections A and B and also C and D on the feed unit housing The grippers can be shifted through 180 such that the Opening is on the opposite side To do this the socket head cap screws 7 front side must be slackened Electro pneumatic control Pushing normal case Pulling interchange C and D Feed gripper res A ab Holding gripper e EB C Accessories Ite Name Pneum Electro pneum control control Distributor piece FR 4 4 ae ae oo 27 28 Ouick Ouantity connector TCK PK 6 Socket joint CK 1 4 PK 6 8 2 CK PK 4 a 4 leena Silencer Maintenance A service unit type FRC must befitted on the upstream side of the entire control system With this unit the compressed air is cleaned regulated to constant pres
5. sure 6 bar and provided with a fine oil mist for lubricating purposes The bearing bushes of the feed brace must be lubricated from time to time by means of lubricating nipple Il Technical data Diagram showing approximate values for max work ing cycles min at 6 bar working and control pressure Type BV_50 100 2033 a a ur u Material width max mm 50 450 N Feed infinitely variable mm 0 to 100 n Material thickness max mm 1 0 400 T i Feed force at 6 bar N 240 240 c i BV 50 40 Clamping force at 6 bar N 650 650 3507 N BV 50 100 Connection 1 ro 1 a 01 Bg Pressure range bar 3to6 3 to 6 Weight kg 3 7 4 4 e 250 IN 0 1kp 5 200 3 150 Permissible cross section diagram 100 jnd dl al eae Values for properly flattened material with non driven E Dane N reel up to 60 cycles min To achieve these values a Stroke mm driven reel must be used at higher cycling rates The attainable working cycles min depend on many factors mostly stroke and load In the diagram the 100 upper range for each type represents the attainable cycling freguency at low load and the lower range g 80 represents the attainable cycling freguency at high a aR eee Res load ae 3 pt To attain the upper limit time leading control is ad nl PH Harte o IHevso at 1 TT 11 A fitted advance movement cushioning arrangement S Hev 50 100 111
6. than 30 mm wide it must be ensured that the strip is guided over the centre of the clamp ing piston 18 and is aligned with the tool centre A Centre marking Operating Instructions for pneumatic feed units type BV 50 40 BV 50 100 marking groove on the clamping gripper indicates the centre of the clamping plate The guide rollers 1 are provided for lateral guidance and must be set to the appropriate strip width Make sure that they run freely With open clamping grippers it is possible to transport material which exceeds the width of the feed unit Feed setting Slacken clamping screws 8 turn set screw 4 until the distance between stop 5 and feed brace corre sponds to the desired feed length Retighten clamp ing screws Insert strip Close hand slide valve Figs 4 and 2 item 22 the unit is now exhausted insert strip reopen hand slide valve If strip or tape material is to be inserted against the length stop it is advisable to incorporate a further hand slide valve into line P 1 for exhausting the grip pers Figs 1 and 2 item 25 Item Name Guide roller Stroke setting Buffer plate Fastening screw Clamping screw for stroke setting Guide column Fastening hole Lubrication nipple Clamping piston replaceable p OSS0 40 a 4 4 1 To obtain the optimum cycling frequency the control line between valves 20 and 21 should not exceed two metres in the pneumatic control Fig
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