Hugh smith 3000tx3 vertical plate bending machine

HUGH smith VERTICAL PLATE BENDING MACHINE 3000t x 3 Hugh Smith Engineering A Division of Qualter Hall Co Ltd Maritime House Woodville Street Glasgow G51 2RQ Scotland UK Tel No HUGH SMITH ENGINEERING A Division of Qualter Hall Co Ltd Bending Capacity Chart Machine 860 mm Main Roller Diameter Yield Stress 25 35 50 25 35 50 25 35 50 K /mmZ Min. Inside Small Dia. Range mm Medium Dia. mm Large Dia. Range mm Dia. mm and above Plate Width Plate Thickness mm Contact Centres for above Thickness mm Page 2 of 15 HUGH SMITH ENGINEERING A Division of Qualter Hall Co Ltd NOTES ON CAPACITY TABLE The above plate thickness have been calculated using the maximum allowable load utilising the main roller, with the narrower plates raised towards the centre of the machine. Plates narrower than the full height of the machine can be formed at floor level but using a reduced load. The maximum load tonnes per metre apply to any cold form plate is:- Yield Strength kg/mm2 x 80. eg for 25 kg/mm2 yield strength material, maximum load per metre width = 25 x 80 = 2000 tonnes. A range of contact centres is available depending on the diameters to be formed; the wider centres would not be suitable for the smaller diameters Contact centres used in the table are typical for the diameter and thickness shown. By increasing or reducing the centres the plate thickness would alter respectively, although they should be kept as close as possible to minimize the end flat. ie thinner plates require smaller centres. The Contact Centres quoted above represent approx. 80 of those available at the specified diameters The approximate end flat is in the region of 30 - 40 of the contact centres used, this depends on such factors as material yield, plate thickness and springback etc. Effect of altering contact centres on plate thickness:- The new plate thickness will approximate to; t2 = t, x new contact centres/original centres. As a guide hot bending increases the cold bending thickness by a factor of two. Page 3 of 15 HUGH SMITH ENGINEERING A Division of Qualter Hall Co Ltd TECHNICAL SPECIFICATION Maximum force 3000 Tonnes Maximum plate width 3000 mm Standard main roller diameter 860 mm Minimum ınside diameter of formed cylinder 1030 mm Maximum stroke 450 mm Maximum daylight between main roller and beam 400 mm Maximum daylight between main roller and bending bars 250 mm Maximum thickness accommodated in machine 200 mm Maximum bending bar centres normal 1000 mm Minimum bending bar centres normal 400 mm Minimum bending bar centres reversed 240 mm Pressing speed 6 mm/sec Return speed 40 mm/sec Designed number of bending cycles 3 to 6/min Bending cycles based on beam stroke of 100 to 50 mm Plate speed per minute depending on feed length 600 to 1200 mm/min Plate bending capacity in cold state See above Chart Hydraulic Pump Motors 2 of 110 kW each Electrical Equipment suitable for 380/460 volts, 3 phase, 50/60 Hz Control Circuit Voltage 110/120 v AC Operating Circuit Voltage 24 v DC Machine dimensions Drawing 4735 Foundation dimensions Drawing 4735 B WEIGHT OF MACHINE Approx 123 Tonnes Page 4 of 15 HUGH SMITH ENGINEERING A Division of Qualter Hall Co Ltd VERTICAL PLATE BENDING MACHINE GENERAL DESCRIPTION The Vertical Plate Bending machine, manufactured in a range of powers and sizes, is primarily designed for producing cylinders and cones, from storage tanks and boilers, to penstocks, submarine hulls and thick walled pressure vessels. Particularly in the field of offshore construction numerous unique design features were developed to follow the trend for thicker, smaller diameter tubulars as water depths and climatic conditions became more demanding. Most importantly, due to particular features of the Hugh Smith design, any given capacity of vertical bending machine can form thicker material to smaller diameters than any other type of horizontal machine. The machine can also be used to straighten plates and form ninety degree flanging work, even forming hollow square tubes if required.

The machines range in capacity from bending force suitable for various widths of plate up to When the plate is entered in the machine it is positively held in a safe condition and no further cranage is required until the is completed. The lower edge of the is supported by running on an accurate floor which maintains alignment of the plate relative to the main at times. There is no requirement for expensive special support systems as required on forming. thickness variations do not cause the plate to during forming. Mill scale on the falls to the away from the and is not pressed into the surface, a particular advantage when hot. Setting of the edges to give minimum end flat can be quickly and accurately carried out and because the is brought to bear directly onto the plate, then into the position is possible to the effects of weld. After rolling up, the plate can easily be held by the machine to close the while is tack welded, or - after is desired. Since the machine works on the principle the plate is not being formed and fed through the machine, therefore, a high power is not required. fact, power is only required for approximately - 2 seconds per cycle, in a energy consumption. Whilst it would appear that the rate of feed per of the plate through the is slow when compared to horizontal, it should be out that the machine has the power to form a in one pass, as the necessary in the. Because the is a press-bend machine, it is simple to that the bend curvature is very accurately maintained even where or of variations occur. Page of 15 HUGH ENGINEERING A Division of Co Ltd The Main is dual purpose in that it provides the central surface of the 3 point bending, and also provides the means of the plate through the machine. Each size of machine is designed to accept size rollers to the forming of smaller. Rollers rated at any load down to of the machine can normally be fitted, and in circumstances even smaller rollers can be. The standard are from high alloy steel capable of thermal shock when hot is being performed. For special such as for use with very high, for the may be. This also to the material. The is mounted in large diameter bearing designed to take the tonnage of the under static. For feeding the through the the is rotated by and under level. The is driven by a high motor. The Rams, the within the beam, a friction grip against the main to the plate through the machine, the of the plate being on the provided. The Back is two cylinders is of deep box fabricated to withstand the force of the with the of deflection. The is located and into the and bottom. The Top and transmit the load reaction from the back to the bending journals and are of section quality steel. The is hinged such that the section can clear of the to allow removal of the. within the are low maintenance which the beam. The is of fabricated box construction and horizontally between the top and bottom. The is top and bottom to the in the ensuring that remains square to the fixed back and during Replaceable low strips are between the for long free but they can be replaced if necessary. The bending is through the from the back cylinders and its is serrated across its entire width to give a positive adjustable location for the two bending bars which the outer thrust surfaces of the three point bending. Page of 15 HUGH ENGINEERING A Division of Co Ltd The Bending Bars are with matching of giving a symmetrical about the centre in increments and are in position top and bottom by quick release fixing which allow simple for diameter work. The centre of the bending bars is effected by an electric motor driven system within the moving beam with hydraulic locking to the operator to alter the bending bar centres by push button control, even whilst the workplate is in the. The reciprocating beam also the four hydraulic Rams. By means of the roller on the of each ram, the is firmly pushed against the main to ensure that the plate is fed through the machine without giving a constant. These are also used to provide the stroke of the reciprocating during the normal cycle.

Two additional Return Rams are vertical support columns beam when the plate vicing feature is not being used, inserting or removing the plate from the machine. To limit the backward travel during the beam cycle and give the stroke necessary for the bending operation, the machine is fitted with a motorized adjustable Back Stop system. It is located at the top and bottom extremities of the beam and the operating mechanism is mounted on the beam. Its secondary function is to ensure that the beam is perpendicular and exactly to the main prior to the of each forward bending motion.

ROLLER SKATES Four roller skates are supplied with each machine. These skates are designed to accept a load of 5, 10 or 20 per skate, depending on the machine capacity. The upper roller of the skates is designed for square edge preparation. For J and double V preparations, special grooved rollers can be supplied on request, but it is usual for the user to make these rollers to suit their own requirements. The design of the skates permits the easy change of the top rollers. Page 7 of 15 HUGH SM1TH ENGINEERING A of Qualter Ha11 Co Ltd HYDRAULIC EQUIPMENT The hydraulic system used on this machine has been specially developed and improved upon many years of experience. The hydraulic equipment would be supplied by Bosch Rexroth, the world s leading supplier of high pressure hydraulic systems. High pressure, variable delivery, piston pumps are utilized to ensure high efficiency and long life. The hydraulic pumps and valves are contained in a single unit, base mounted adjacent to the machine. The pumps are driven directly by electric motors. The solenoid / pilot operated control valves are mounted on manifold blocks and controlled electrically. The use of block hydraulics reduces the number of pipe connections and the risk of oil leakage in the system and makes for easier maintenance. The unit is complete with plug-in test pressure connections at various points throughout the hydraulic circuit to facilitate fault finding. Tell-tale indicator lamps are visible on the outside of the unit to indicate when solenoids are activated. Main ram and servo oil pressure is indicated by gauges mounted on the hydraulic unit. The oil system is continuously cleaned by high efficiency replaceable element filters with warning lamp indication for replacement. Where necessary due to ambient conditions, an air blast cooler is fitted to maintain the hydraulic oil at a satisfactory temperature. Similarly, electric immersion heaters are fitted in the oil tank to maintain a satisfactory minimum temperature for starting in cold conditions. All hydraulic rams are ground; hard chrome plated forged steel, and operated within cylinders fitted with replaceable phosphor bronze liners. The main cylinders are sealed by high pressure multi-lipped type V ring packings split for ease of replacement. The other auxiliary cylinders utilize patent fluid seals. All rams are protected by efficient scraper rings within the glands. The hydraulic system is fully protected against any unintentional overload conditions which could damage the machine or interchangeable rollers. When smaller diameter interchangeable rollers are fitted, the load which may be applied is automatically reduced to ratings which will not over-stress or cause unacceptable deflection. The operating fluid for use in Hugh Smith machines is good quality hydraulic mineral oil between 37 or 46 grade, depending on the ambient temperature. We do not include for the of oil. Page 8 of 15 HUGH SM1TH ENGINEERING A of Qualter Hall Co Ltd ELECTRICAL EQUIPMENT Electric motors and control gear are supplied by first class UK or European manufacturers. Subject to agreement at time of order. electrical equipment made by specific manufacturers can be supplied, provided commercial conditions such as price and delivery permit. The equipment is designed for line voltage and frequency as required by the customer The control voltage for push-buttons is DC and for contactors, solenoids, shall be AC All limit switches have indicator lights. The main hydraulic pumps are driven by high efficiency, totally enclosed AC induction motors. in accordance with 1EC 34-5 protection standards and Class `F insulation to 1EC34-1 These motors are started on no- load by push button operated star delta starters with automatic sequence for multiple motors. The motors are protected by thermal and electro-magnetic overload breakers All electrical control gear is housed in a lockable steel enclosure to 55 protection standard which is mounted on the machine A 3 phase door interlocked circuit breaker is provided for the connection of incoming power. The electrical control circuits are so arranged that in the event of power failure or interruption the press cannot inadvertently restart or make any uncontrolled movements. Emergency stop buttons of the turn-to-release type are positioned on both sides of the machine in addition to one on the control desk and the integrity of the emergency system is continually monitored in compliance with recognized safety standards. CONTROL SYSTEM Complete control of the machine is effected from a portable desk type control console on the floor area adjacent to the machine. The console is mounted on wheels and connected to the electrical panel by an armored type trailing cable, thereby allowing operator mobility and unrestricted view of the working area. The face of the control console has an engraved legend plate with all operating features depicted in color-coded international sign language. An auxiliary pendant control station is fitted on the opposite side of the machine with selected duplicate controls to facilitate the edge setting operations. The machine has two basic modes of operation: - An Automatic Cycle mode in which the bend and feed cycle is repeated continually until a complete pass is performed, with the length of feed and amount of stroke being pre-selected by the operator and a Manual mode in which the beam stroke and feed movements are controlled by hold-to-run pushbuttons. The direction of movement of the plate through the machine can be in either direction for both modes of operation. Page 9 of 15 HUGH SMITH ENGINEERING A Division of Qualter Ha11 Co Ltd STANDARDS The machine has been designed to give a long and trouble-free life Ease of servicing had a strong influence on the design, use of materials and methods of manufacture. As far as possible the equipment has been designed to meet international standards. All constructional and manufacturing dimensions use the metric system All screw fasteners used have millimeter pitch All scales are graduated according to the metric system. The scales can be graduated to the inch system if requested at time of ordering. All motor and electrical switchgear components comply with the relevant BS and standards. Materials and construction methods employed in manufacture of machine are in accordance with recognized British standards. Paint Specification: - Shotblast to Swedish Standards / 1 coat - 50 microns dry film of ZINC RICH PRIMER 1 coat -. 100 microns dry film of MICACEOUS IRON OXIDE 1 coat - 50 microns dry film of 2 part EPOXY Finish Unless specified at time of ordering, the machine will be painted with high-performance epoxy paint finish in our standard color Other color can be supplied to suit Customer reasonable requirements. FOUNDATIONS We supply a certified foundation drawing for the customer to prepare foundations for the machine. Since the machine is a self-contained unit, it is only required to support the dead weight of the machine as no dynamic forces are transferred to the foundations. It is necessary to emphasize the need for accurately leveled steel floor plates around the working area of the machine, and suitable machined floor plates are quoted as an extra. It is important that the workplate is supported in such a fashion as to permit smooth and easy movement on the floor plates. Our price does not include foundation costs, nor the support beams for the machined floor plates. The machined floor plates are quoted extra. Page 10 of 15 HUGH SМІТH ENGINEERING A Division of Qualter Hall Co Ltd APPROXIMATE SHIPPING SPECIFICATION T X VERTICAL PLATE BENDING MACHINE Bottom Slab Top Slab rear Top Slab front Moving Beam Fixed Beam Roller Pump Unit Case Bundle of Columns Other Items Total Items 750T Interchangeable Roller Crane Bracket Crane Jib Crane Jib Crane Blocks Additional Total 1 Tonne = 2204 Pounds All dimensions in cros Page 11 of 15