Friction press, screw press with friction drive, is more widely used in the equipment manufacturing business. In accordance with the invention, there is offered a flywheel and screw press for producing ceramic articles comprising, together, a base having an upper floor, a hard and fast head, assist means supporting the fixed head in mounted position upwardly spaced from the higher surface of the base, a movable beam situated in the space between the higher surface and the mounted head and being guided on assist means for movement towards and away from the higher floor, mold means carried by the base and provided with cavities open upwardly for receiving a cost of ceramic powder material, punch means carried by the movable beam and designed to cooperate with the cavities for forming ceramic articles, a first pair of hydraulic piston means carried by the base and provided for imparting an upwardly directed thrust to the movable beam, a second pair of hydraulic piston means carried by the fixed head and offered for imparting a downwardly directed thrust to the movable beam, the first pair and the second pair of hydraulic piston means cooperating for controlling the downward stroke of the movable beam for imparting to the powder in the cavities a tender precompression inflicting a primary thickness reduction of the powder mass and an considerable expulsion of the air enclosed therein, a third pair of hydraulic piston means carried by the fastened head and managed for appearing on the movable beam and performing the primary compacting step after the soft precompression, a fourth pair of elastically compressible hydraulic piston means carried by the bottom and provided with adjustable rod ends and capable of interfere with the movable beam when the latter is additional lowered during the first compacting step for impressing to the movable beam an upwardly directed thrust serving to the elastic return of the compacted powder mass to boost the movable beam instantly after the primary compacting step, permitting the expulsion of the remaining air, a flywheel disposed above the fastened head, a screw threadably engaged to the flywheel and carried by the fastened head, motor means offered for alternatively imparting to the flywheel and the screw rotation in a single and in the other direction for lowering and elevating the flywheel and screw, and management means for controlling the motor means to operate the flywheel and screw in the reducing direction in due time for impacting the movable beam and performing a strong second and ultimate compacting step of the powder materials immediately after the elastic return of the powder material, and hydraulic circuit means for timely controlling and driving all the pairs of the hydraulic piston means, the hydraulic circuit means interconnecting all the pairs of the hydraulic piston means.
Thus, in accordance with the invention, there may be provided a flywheel and screw press for producing ceramic articles comprising, together, a base 72 having an upper floor; a set head seventy one; help means 73, 73 supporting mentioned fixed head 71 in fixed position upwardly spaced from mentioned higher floor of mentioned base 72; a movable beam three situated in the area between mentioned upper surface and mentioned mounted head seventy one and being guided on said support means seventy three, seventy four for movement towards and away from mentioned upper surface; mould means carried by said base seventy one and supplied with cavities open upwardly for receiving a charge of ceramic powder material, punch means carried by mentioned movable beam 3 and designed to cooperate with said cavities for forming ceramic articles, a primary pair of hydraulic piston means 9, 9′ carried by mentioned base seventy two and provided for imparting an upwardly directed thrust to mentioned movable beam 3; a second pair of hydraulic piston means carried by said fastened head and offered for imparting a downwardly directed thrust to mentioned movable beam three, mentioned 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 inflicting a first thickness discount of the powder mass and an appreciable expulsion of the air enclosed; a 3rd pair of hydraulic piston means 5, 5′ carried by said fixed head 7 and controlled for appearing on the movable beam three and performing the first compacting step after the smooth pre-compression; a fourth pair of elastically compressible hydraulic piston means thirteen, 13′ carried by mentioned base 72 and provided with adjustable rod ends and in a position to interfere with said movable beam 3 when the latter is further lowered during said first compacting step for impressing to said movable beam 3 an upwardly directed thrust serving to the elastic return of the compacted powder mass to lift said movable beam three immediately after stated first compacting step, allowing the expulsion of the remaining air; a flywheel 7″ disposed above mentioned mounted warmth seventy one, a screw 7′ threadedly engaged to said flywheel 7″ and carried by mentioned fixed head seventy one; motor means 7 offered for alternatively imparting to said flywheel 7″ and screw 7′ rotation in one and within the other direction for lowering and raising flywheel and screw, and control means for controlling mentioned motor means 7 to function mentioned flywheel and screw within the reducing course in due time for impacting mentioned movable beam 3 and performing a strong second and supreme compacting step of the powder material instantly after the elastical return of the powder materials; and hydraulic circuit means for well timed controlling and energizing all of the pairs of stated hydraulic piston means, mentioned hydraulic circuit interconnecting all of the pairs of said hydraulic piston means.
Moreover, the sum of the occasions inherent to the primary and second pressing step impeded reduction of the period of a whole compacting cycle; and, the period was all the time higher than three seconds. In response to the exemplary embodiment an axial piston motor 26 (fastened displacement motor) and an axial piston pump 27 (variable displacement pump), i.e. axial piston machines, are supplied as these are probably the most appropriate. In the course of the fast up movement of beam 3 due to the pistons 9 and 9′, the oil retained within the pistons 2 and a pair of’ is forced to exit by the valves 61 and 61′ (FIGS. For the working stroke and the return stroke of the spindle 9 the extent of pivoting is restricted to a pivot angle which corresponds to the rotational pace of the spindle desired in every case and which determines the supply of the pump 27 at a relentless rotational velocity of the electrical motor 28. A piston-cylinder arrangement, which is acted upon, by means of the control 36, by a pump 39 pushed by an electrical motor 38 together with a stress accumulator forty, acts as the actuating drive 37. Pistons 9, 9′ could also be mounted on base seventy two for operative engagement of the plungers thereof with beam three for the return stroke of the beam three after the pressing cycle, and the ensuing emptying of the chambers related to the two pistons 2, 2′. Disadvantages of Friction Disk Screw Press: lengthy transmission chain and excessive energy consumption, more quick-put on parts,not correct controlling and labor-intensive, noisy, unsafe, and so forth. The press, with easy in structure, large vitality, low noise, long life, safe and reliable in operation, handy service and many others, can be extensively utilized in aviation, auto, tractor, instrument manufacturing, textiles equipment industries and so on. Refractory Recycling Crusher refractory cost of installation in uaecement Basalt Crusher MOBILE CRUSHER Cell Crusher concrete recycling; crushing tools; coal mining equipment; sand making machine; about refractory cost of installation in uaecement. Double-disk Friction Screw Press In Uganda. In accordance with the present invention, if there isn’t any inversion of the flywheel between the first and second urgent operation, there is less wear and a minor use of energy to operate the press. This computerized electrical screw press is a multiple practical hearth bricks molding machine. This advantageously implies that the torque utilized to the flywheel may be thrown by a motor immediately and coaxially mounted on the flywheel, and not by a disc friction system.
Enterprise Profile : Jinan Linteng Forging Machinery Co., Ltd. Get data of suppliers, producers, exporters, merchants of Friction Screw Press for getting in India. Certainly, in the first compacting step, the flywheel needed to be thrown at excessive velocity to cut back the time of its vertical stroke and likewise, immediately braked before the impact to scale back its stress. The invention, however, is not restricted to those axial piston machines, but appropriate oil pumps and oil motors of different design will also be used. Although the advantage, of lowered value and larger reliability are achieved at the cost of a higher electric motor drive capacity, since the substantial load compensation made possible by the hydraulic accumulator within the case of the previous kind of drive with a central oil provide is absent, the electrical disadvantages (specifically excessive load peaks, further installations for limiting them, idle power of the motors) and the structural disadvantage of the spindle bearing within the case of a purely electrical drive are averted, and with respect to the operational reliability within the case of the oil-hydraulic drive any drawback resulting from provision of additional hydraulic elements (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-pressure oil ducts, particularly of the versatile parts compensating the movements of the press. Stated pressostat 19, when energized, determines the top of the HP (high strain) step, deenergizing the valves 20 and 17. Our extremely precision computerized press machine has the characteristics of simple structure, adjustable pressure, high degree of automation and productiveness. In summary the operation of the ingenious press utilizes first piston means 9, 9′ to move the beam upwardly or retract the beam from the base, second piston means 5, 5′ for moving the beam downwardly toward the bottom into its working position, and third piston means 2, 2′ for exerting an additional downward power on the beam to maneuver the beam toward the base and compress the ceramic powder to release air therefrom. Our press can save about 50% power than friction press, so it could lower down giant price. Business Profile : We’re Manufacturers and suppliers of; Forging Presses, Friction Screw Press, Press Energy Presses, Energy Press Pillar Kind, Power Press C Sort. With the intention to produce one advanced and energy saving Screw Press for refractory business, Mr. Tian Jiangtao, the president of our firm devoted to analysis and develop this new kind Electric Screw Press, which was the revolution of refractory gear, said by Mr. Xu Dianli, the Cheif Secretary of China Refractory Association.
Line forty three indicates the extraction of the pressed half by the mould because of the piston commanded by the respective valves 63 and 64 in synchronism with the beam and the screw in a new up movement achieved by known command circuits. SD10-315 was the primary set Refractory Electric Program-managed Screw Press for Refractory industry in China which was our company developped and produced, even the primary set in the world. Shortly before the influence of the upper half of the forging die, secured to the slide 7 upon the forging work-piece lying in the decrease half of the forging die, the traces 31 to the axial piston motor 26 are quick-circuited, because the magnetically managed 4-approach valve forty one is moved from its rest position (as shown in FIG. This Friction Screw Press Down Stroke has been developed from best grade metal. This machine can also be appropriate for producing naushadar bricks and head refractory. Switch 23 energizes the valve 17 to disconnect the pilot of a examine valve 22 and introduces oil at a pressure of one hundred atmospheres into the chambers 15 and 15′ of dynamic oil accumulators 14, 14′ which may be hydraulically related to pistons 13, thirteen’ as shown in FIGS. The torlence of controlling vitality of Electric Screw Press is 0.2%, and the torlence of influence power is just one%. The small quantities of oil working off from the stress-limiting valves forty two and forty three and the four-approach valve 41 during the reversing and likewise as leaked oil are fed again again into the closed circuit by a pump 45 pushed by a motor 44. A spring-centered, stress-managed three-way valve forty six is provided so as to ensure the feed pressure required at the pump 27 and controlled by the stress-limiting valve 47. The three-manner valve 46 is actuated in such a approach that the respective low-strain aspect of the closed circuit is linked to the stress-limiting valve forty seven, the feed stress being maintained by the pump 45. For cleaning and cooling the oil, the oil which has escaped from the circuit, is collected partly 32b of the tank 32, passed on after preliminary cleansing by sedimentation to half 32c of the tank 32, is fed by filters 50 and coolers 51 by a pump 49 pushed by an electric motor 48 and is stored partly 32a of the tank 32. Due to this fact, instead of ending the primary pressing with the worth of the pressing, the quantity of oil at excessive pressure could also be used. The electric screw press is driven by permanent magnet synchronous servo motor,and consist of mechanical pats equivalent to framework, flywheel, screw nut, the slider, lubricating mechanism, braking mechanism and electric elements akin to servo motor, electrical management cupboard, working button station.