Is a new product which integrated steel press machine advangtage of south china and north structure adopts the break up body and solves the issue of the rack fracture ,which has the characteristics of easy and cheap equipment construction, lovely appearance, straightforward operation, maintenance and method to finish the work of workstation is that the motor drives pinion and then pinion drives flywheel rotating with power releasing for the necessities of the equipment is mainly used in the precision forging of ferrous metals, nonferrous metals, refractory materials and different industries. In keeping with the invention every axial piston motor or each pair of axial piston motors respectively associated with a pinion has associated with it on the platform a controllable pump which is pushed by a respective electric motor and is reversible with respect to the fluid provide course. Enterprise Profile : We’re Manufacturers and suppliers of Power Press Piller Kind, Energy Press Two Station, Power Press two Gear, C Type Power Press, Friction Screw Presses, Down Stroke, Forging Press Up Stroke Steel Body, Pneumatic Clutch Press, Billet Shearing Machine, Heavy Responsibility Double Column Planner, Plano Miller, Plano Miller Cum Planner, Cone Pulley and many varieties of Industrial Machines. The stress applied at this moment is determined and given by the burden of the beam 3 plus the motion of the pistons 5 and 5′ (less the drive of the pistons sixteen” of help of the mould in case of use of the mirror type mould).
The invention relates to a screw press having a flywheel rotationally related to the spindle by way of a friction coupling and a spindle displaceable axially in a nut mounted within the upper cross member of the press frame, whereby the flywheel has exterior toothing to a width akin to the maximum press stroke plus the width of the driving pinion, a plurality of pinions participating within the said toothed rim are every driven by oil-hydraulic axial piston motors or by a pair of oil-hydraulic axial piston motors and the related upper and decrease axial piston motors along with the pinions are disposed on a platform surrounding the higher cross member of the press frame. three, lines 40 and forty one are consultant of the screw stroke, and contours 30, 31, 31′, 33, 34, 35, 36 and forty three are consultant of the stroke of beam three. In a high place 30 the beam three 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 burden of the beam 3 and the pressure of the pistons 5 and 5′. This new structure is based on the refractory forming characters, which is our firm developed based on SD20 Series Electric Screw Press for the refractory business. Shortly earlier than 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 remainder of the stroke of the spindle 9. When the rotational velocity is lowered the 4-method valve forty one is displaced from the remaining position to the best and the road 42a is related to a second stress-limiting valve 43. The stress which might be regulated by the strain-limiting valve forty three limits, by way of the strain-limiting valve forty two, the stress present in the pipeline 31 to the braking pressure required for braking the flywheel 17. Concerning the current urgent machines, the variety of strokes achieved between the washing phases of the moulds, is from 2 to 3 occasions as great. For the reason that electric motors are twice accelerated from relaxation to the required rotational speed and braked again during every operating cycle, correspondingly excessive present heat losses are unavoidable and in addition the idle power absorbed by the motor is disadvantageous. Experimentally, with a pressing machine in accordance with the current invention, it would be observed that the required power for the primary urgent operation, with predetermined lots of ceramic, might be fairly low, approximately 10-12,000 kg., in opposition to the 400,000 Kg of the second urgent operations, which is sort of completely different from the current urgent machines, which require about 50 to one hundred fifty tons for the first pressing step.
A flywheel and screw press for producing ceramic articles comprising, together, a base having an upper surface; a hard and fast head; support means supporting stated mounted head in fastened place upwardly spaced from stated higher floor of stated base; a movable beam situated within the area between mentioned higher floor and said fixed head and being guided on said assist means for motion towards and away from stated upper floor; mould means carried by mentioned base and provided with cavities open upwardly for receiving a cost of ceramic powder materials, punch means carried by said movable beam and designed to cooperate with said cavities for forming ceramic articles, a first pair of hydraulic piston means carried by said base and offered for imparting an upwardly directed thrust to said movable beam; a second pair of hydraulic piston means carried by stated fixed head and provided for imparting a downwardly directed thrust to mentioned movable beam, said first and second pair of hydraulic piston means cooperating for controlling the downward stroke of said movable beam for imparting to the powder in the cavities a smooth pre-compression causing a primary thickness discount of the powder mass and an appreciable expulsion of the air enclosed; a third pair of hydraulic piston means carried by mentioned fixed head and controlled for performing on the movable beam and performing the first compacting step after the tender pre-compression; a fourth pair of elastically compressible hydraulic piston means carried by said base and supplied with adjustable rod ends and capable of interfere with said movable beam when the latter is additional lowered during stated first compacting step for impressing to mentioned movable beam an upwardly directed thrust helping the elastic return of the compacted powder mass to lift mentioned movable beam immediately after stated first compacting step, allowing the expulsion of the remaining air; a flywheel disposed above said fastened head, a screw threadedly engaged to said flywheel and carried by stated mounted head; motor means provided for alternatively imparting to mentioned flywheel and screw rotation in a single and within the other path for lowering and raising stated flywheel and screw, and control means for controlling stated motor means to operate mentioned flywheel and screw within the reducing route in due time for impacting stated movable beam and performing a robust second and supreme compacting step of the powder material instantly after the elastic return of the powder material; and hydraulic circuit means for timely controlling and energizing all the pairs of mentioned hydraulic piston means, stated hydraulic circuit means, interconnecting all the pairs of mentioned hydraulic piston means.
Line 43 indicates the extraction of the pressed part by the mould as a result of piston commanded by the respective valves 63 and 64 in synchronism with the beam and the screw in a brand new up motion achieved by recognized command circuits. SD10-315 was the primary set Refractory Electrical Program-managed Screw Press for Refractory trade in China which was our company developped and produced, even the primary set on this planet. Shortly earlier than the impression of the upper half of the forging die, secured to the slide 7 upon the forging work-piece lying within the decrease half of the forging die, the lines 31 to the axial piston motor 26 are short-circuited, because the magnetically controlled 4-means valve forty one is moved from its relaxation position (as shown in FIG. This Friction Screw Press Down Stroke has been developed from finest grade metal. This machine is also appropriate for producing naushadar bricks and head refractory. Swap 23 energizes the valve 17 to disconnect the pilot of a test valve 22 and introduces oil at a strain of a hundred atmospheres into the chambers 15 and 15′ of dynamic oil accumulators 14, 14′ which can be hydraulically connected to pistons thirteen, thirteen’ as proven in FIGS. The torlence of controlling power of Electrical Screw Press is 0.2%, and the torlence of affect power is only 1%. The small portions of oil running off from the strain-limiting valves 42 and 43 and the 4-way valve 41 throughout the reversing and in addition as leaked oil are fed again once more into the closed circuit by a pump 45 pushed by a motor 44. A spring-centered, stress-controlled three-means valve 46 is provided to be able to make sure the feed stress required at the pump 27 and regulated by the strain-limiting valve 47. The three-method valve forty six is actuated in such a means that the respective low-stress facet of the closed circuit is related to the pressure-limiting valve forty seven, the feed pressure being maintained by the pump forty five. For cleansing and cooling the oil, the oil which has escaped from the circuit, is collected partly 32b of the tank 32, handed on after preliminary cleaning by sedimentation to part 32c of the tank 32, is fed by filters 50 and coolers fifty one by a pump forty nine driven by an electric motor forty eight and is stored in part 32a of the tank 32. Subsequently, instead of ending the primary pressing with the value of the urgent, the volume of oil at excessive stress could also be used. The electrical screw press is pushed by permanent magnet synchronous servo motor,and consist of mechanical pats similar to framework, flywheel, screw nut, the slider, lubricating mechanism, braking mechanism and electrical components resembling servo motor, electric management cabinet, operating button station.
4, by one axial piston motor 26. The axial piston motor 26 is fed by the oil pump 27 which is pushed by the electric motor 28. When the feed course of the pump 27 is reversed there may be also a change in the direction of rotation of the axial piston motor 26 which in one path of rotation effects the downward movement of the spindle 9 for the working stroke and within the other path of rotation results the upward movement of the spindle 9 in order to return to the starting place. Enterprise Profile : GRD Mechanical Works is likely one of the leading Producer & Supplier of All Sorts of Power Press, Friction Screw Press, Forging Press & Equipment Elements and many more. The time for such programs is determinable, by delaying the pressure phase of the pistons 2 and a couple of’ by means of the valves fifty five and 56. The flywheel and screw are movable from an higher position and a decrease position, the latter being the position whereby the second compacting step is carried out, the area from the higher and the lower place being such that the flywheel and the screw should rotate at a couple of flip for shifting from one to the opposite position. It is a part of the enterprise transformation of the scene graph, Disadvantage of Friction Disk Screw Press: Long transmission chain and excessive power loss. With the intention to scale back the structural expenditure and to increase the operational reliability, every axial piston motor or pair of axial piston motors related to a pinion has associated with it on the platform a controllable pump which is driven by a respective electric motor and is reversible with respect to the move path. button operation to complete the hearth bricks producing;no radial drive. Friction Screw Press(guide Double Disc Forging Press) , Find Full Details about Friction Screw Press(handbook Double Disc Forging Press),Friction Screw Press,Friction Forging Press,Guide Press from Metallic Forging Machinery Supplier or Manufacturer-Zhengzhou Timeway Machine Tool Co., Ltd. The step represented by line 31′ is the continuation of the down motion of the beam 3 after the conclusion of the section 31 of the braking, is the pressing until meeting the equilibrium level between the pressure utilized and the reaction power of the mass then pressed (at stage 37). The forging forces do not act on the machine frame but are sustained by the Ram. A pressostat 18 calibrated at 90 ambiance, energizes a valve 20 which feeds a multiplier 21 taking the required pressure to the oil, with this pressure being predetermined through a pressostat 19.