This Screw Press is often known as Forging Presses or Screw Presses. Enterprise Profile : Jinan Linteng Forging Machinery Co., Ltd. Get information of suppliers, producers, exporters, traders of Friction Screw Press for purchasing in India. Certainly, in the first compacting step, the flywheel needed to be thrown at high pace to cut back the time of its vertical stroke and in addition, instantly braked earlier than the affect to reduce its pressure. The invention, nonetheless, shouldn’t be restricted to those axial piston machines, but appropriate oil pumps and oil motors of different design may also be used. Although the benefit, of lowered price and higher reliability are achieved at the cost of a better electrical motor drive capability, for the reason that substantial load compensation made doable by the hydraulic accumulator in the case of the previous sort of drive with a central oil provide is absent, the electrical disadvantages (particularly high load peaks, additional installations for limiting them, idle power of the motors) and the structural drawback of the spindle bearing in the case of a purely electrical drive are avoided, and with respect to the operational reliability in the case of the oil-hydraulic drive any disadvantage as a consequence of provision of additional hydraulic components (oil pumps and management means for every oil motor or pair of oil motors associated with a pinion) is more than compensated by the absence of the excessive-strain oil ducts, in particular of the flexible portions compensating the actions of the press. Mentioned pressostat 19, when energized, determines the tip of the HP (excessive pressure) step, deenergizing the valves 20 and 17. Our ultra precision automatic press machine has the traits of simple structure, adjustable pressure, high diploma of automation and productiveness. In summary the operation of the inventive press makes use of first piston means 9, 9′ to move the beam upwardly or retract the beam from the base, second piston means 5, 5′ for shifting the beam downwardly toward the base into its working place, and third piston means 2, 2′ for exerting an extra downward drive on the beam to move the beam towards the bottom and compress the ceramic powder to launch air therefrom. Our press can save about 50% energy than friction press, so it could possibly cut down large value. Enterprise Profile : We are Manufacturers and suppliers of; Forging Presses, Friction Screw Press, Press Power Presses, Power Press Pillar Kind, Energy Press C Sort. To be able to produce one superior and energy saving Screw Press for refractory business, Mr. Tian Jiangtao, the president of our company devoted to research and develop this new form Electrical Screw Press, which was the revolution of refractory equipment, stated by Mr. Xu Dianli, the Cheif Secretary of China Refractory Association.
Jinan Linteng Forging Equipment Co., Ltd. Degree forty two is the one reached after the material has suffered the strain of the screw and represents the ultimate disposition of the pressed mass. EPC-D numerical management electric screw press undertake switched reluctance motor which is essentially the most superior and best suited for the die forging industry The motor with low velocity and large starting torque apply to the constructive and unfavourable work.Therefore, the lifetime of the motor is extended and saves vitality.Electronic control system use PLC control with man-machine interface integration whereas realizing the automation of forging manufacturing with robot or different automation equipment connectionThe pinion are made of particular metal, which solved the vulnerability problem of the bakelite gear without damaging gearwheel and extended the pinion life greater than 5 times than bakelite gear;The screw and the flywheel adopt the spline connection, which improves the workpiece interchangeability. Business Profile : Main producer of Floor Grinder, Plano Miller, Planner Machine, Grinding and Milling Equipment, Machine Instruments & Accessories and Friction Screw Press used for Refractories. Depending upon the tooling employed on a press, it meets totally different needs of Non-Ferrous, Metal, Brass, Aluminium stamping’s, Scorching Forgings and piercing operations. Friction screw press can be used in die forging, extruding, leading edge, bending and correcting for nonferrous and ferrous steel and urgent and forming work of refractory material as properly. Furthermore, the regulation of the different phases amongst them, which is totally different from what would occur with the present machines, the place the signalization of the first and second pressing steps are associated one to the other. The point 102″ is the arrival point after the primary cycle, with the normal pressing machine. Thus, the entire strain time is 285 ms as compared to a minimum of 1,300 ms of the pressing machines. The third pair of hydraulic piston means are, in a most well-liked embodiment, single acting hydraulic jacks 5, 5′, each one having chamber crammed with oil at decreased stress throughout the reducing movement of the movable beam 3 and energized with an sufficient high stress, for performing the first comparting step. Business Profile : We’re Manufacturers and suppliers of; Forging Press Machine & Friction Screw Presses & Machine Instruments, Down Stroke Machine and Up Stroke Machine.
Thus, in accordance with the invention, there’s supplied a flywheel and screw press for producing ceramic articles comprising, in combination, a base 72 having an higher floor; a set head seventy one; help means seventy three, seventy three supporting mentioned mounted head 71 in fixed place upwardly spaced from stated upper floor of mentioned base seventy two; a movable beam three positioned within the house between stated higher surface and mentioned fastened head seventy one and being guided on mentioned help means 73, 74 for motion towards and away from said upper surface; mould means carried by said base 71 and supplied with cavities open upwardly for receiving a cost of ceramic powder material, punch means carried by mentioned movable beam 3 and designed to cooperate with said cavities for forming ceramic articles, a first pair of hydraulic piston means 9, 9′ carried by mentioned base seventy two and supplied for imparting an upwardly directed thrust to mentioned movable beam 3; a second pair of hydraulic piston means carried by stated mounted head and offered for imparting a downwardly directed thrust to said movable beam three, said first 9, 9′ and second 6, 6′ pair of hydraulic piston means cooperating for controlling the downward stroke of stated movable beam 3 for imparting to the powder in the cavities a tender pre-compression causing a first thickness discount of the powder mass and an considerable expulsion of the air enclosed; a third pair of hydraulic piston means 5, 5′ carried by mentioned fastened head 7 and controlled for appearing on the movable beam 3 and performing the first compacting step after the soft pre-compression; a fourth pair of elastically compressible hydraulic piston means 13, 13′ carried by said base 72 and supplied with adjustable rod ends and capable of intrude with stated movable beam 3 when the latter is further lowered throughout mentioned first compacting step for impressing to stated movable beam three an upwardly directed thrust serving to the elastic return of the compacted powder mass to boost mentioned movable beam 3 immediately after mentioned first compacting step, permitting the expulsion of the remaining air; a flywheel 7″ disposed above said fastened warmth seventy one, a screw 7′ threadedly engaged to said flywheel 7″ and carried by said fixed head 71; motor means 7 offered for alternatively imparting to stated flywheel 7″ and screw 7′ rotation in one and in the other route for lowering and elevating flywheel and screw, and management means for controlling said motor means 7 to operate stated flywheel and screw within the decreasing route in due time for impacting stated movable beam 3 and performing a powerful second and supreme compacting step of the powder materials immediately after the elastical return of the powder materials; and hydraulic circuit means for well timed controlling and energizing all of the pairs of said hydraulic piston means, stated hydraulic circuit interconnecting all the pairs of mentioned hydraulic piston means.
The invention pertains to a screw press having a flywheel rotationally linked to the spindle by way of a friction coupling and a spindle displaceable axially in a nut mounted within the higher cross member of the press body, wherein the flywheel has external toothing to a width comparable to the utmost press stroke plus the width of the driving pinion, a plurality of pinions partaking in the stated toothed rim are each pushed by oil-hydraulic axial piston motors or by a pair of oil-hydraulic axial piston motors and the axial piston motors along with the pinions are disposed on a platform surrounding the upper cross member of the press frame. three, traces 40 and forty one are representative of the screw stroke, and lines 30, 31, 31′, 33, 34, 35, 36 and 43 are representative of the stroke of beam three. In a high position 30 the beam 3 is supported by the pistons 9 and 9′ in opposition to the adjustable plunger heads 6″ and 6′” of the pistons 6 and 6′. The facility of the pistons 9 and 9′ is such that it exceeds the weight of the beam 3 and the drive of the pistons 5 and 5′. This new structure is predicated on the refractory forming characters, which is our company developed primarily based on SD20 Collection Electric Screw Press for the refractory trade. Shortly before the tip of the downward stroke of the spindle 9 the rotational pace of the pump 27 and hence the rotational speed of the flywheel 17 and the spindle 9 are lowered to zero during the rest of the stroke of the spindle 9. When the rotational speed is decreased the four-way valve 41 is displaced from the remaining position to the fitting and the road 42a is connected to a second stress-limiting valve 43. The pressure which will be regulated by the strain-limiting valve 43 limits, by the use of the strain-limiting valve 42, the stress present in the pipeline 31 to the braking stress required for braking the flywheel 17. Concerning the current pressing machines, the variety of strokes achieved between the washing phases of the moulds, is from 2 to 3 occasions as great. Because the electric motors are twice accelerated from relaxation to the required rotational velocity and braked again throughout every working cycle, correspondingly excessive current heat losses are unavoidable and in addition the idle energy absorbed by the motor is disadvantageous. Experimentally, with a urgent machine in accordance with the current invention, it would be observed that the mandatory power for the first urgent operation, with predetermined masses of ceramic, will be quite low, approximately 10-12,000 kg., in opposition to the 400,000 Kg of the second pressing operations, which is quite completely different from the present pressing machines, which require about 50 to a hundred and fifty tons for the first urgent step.