All pistons function at one hundred atm, approximately, as working stress. The step represented by line 30 represents the quick lowering down stroke path of the beam three on account of its personal weight and the action of the pistons 5 and 5′ when the discharge of the pistons 9 and 9′ is commanded by the valves 8-12 and 10 screw type press. The line portion 31 is the braked down motion to meet the mass to be pressed at filling (degree 32) with low velocity, so as to avoid the expulsion of the ceramic powder from the casting mould and a violent contact between the punches and the moulds, in the case of mirror moulds (nonpentrating). Is a new product which integrated screw press advangtage of south china and north construction adopts the break up body and solves the issue of the rack fracture ,which has the traits of easy and reasonable equipment construction, lovely appearance, easy operation, maintenance and method to finish the work of workstation is that the motor drives pinion after which pinion drives flywheel rotating with power releasing for the requirements of the equipment is especially used in the precision forging of ferrous metals, nonferrous metals, refractory supplies and other industries. In accordance with the invention each axial piston motor or each pair of axial piston motors respectively related to a pinion has related to it on the platform a controllable pump which is driven by a respective electric motor and is reversible with respect to the fluid supply course. Enterprise Profile : We’re Producers and suppliers of Power Press Piller Sort, Energy Press Two Station, Power Press two Gear, C Kind Power Press, Friction Screw Presses, Down Stroke, Forging Press Up Stroke Steel Physique, Pneumatic Clutch Press, Billet Shearing Machine, Heavy Responsibility Double Column Planner, Plano Miller, Plano Miller Cum Planner, Cone Pulley and plenty of sorts of Industrial Machines. The stress applied at this moment is set and given by the load of the beam 3 plus the motion of the pistons 5 and 5′ (less the force of the pistons 16″ of support of the mould in case of use of the mirror type mould).
Thus, in accordance with the invention, there’s offered a flywheel and screw press for producing ceramic articles comprising, in combination, a base seventy two having an higher surface; a hard and fast head seventy one; help means seventy three, 73 supporting mentioned fixed head seventy one in fastened position upwardly spaced from said upper surface of mentioned base 72; a movable beam three situated in the house between said upper surface and mentioned fixed head seventy one and being guided on stated help means seventy three, seventy four for movement toward and away from stated higher floor; mould means carried by mentioned base 71 and supplied with cavities open upwardly for receiving a cost of ceramic powder materials, punch means carried by mentioned movable beam three and designed to cooperate with mentioned cavities for forming ceramic articles, a primary pair of hydraulic piston means 9, 9′ carried by stated 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 mentioned mounted head and supplied for imparting a downwardly directed thrust to stated movable beam 3, mentioned first 9, 9′ and second 6, 6′ pair of hydraulic piston means cooperating for controlling the downward stroke of mentioned movable beam 3 for imparting to the powder in the cavities a tender pre-compression causing a first thickness reduction of the powder mass and an considerable expulsion of the air enclosed; a third pair of hydraulic piston means 5, 5′ carried by said mounted head 7 and controlled for appearing on the movable beam three and performing the first compacting step after the tender pre-compression; a fourth pair of elastically compressible hydraulic piston means thirteen, thirteen’ carried by said base 72 and provided with adjustable rod ends and in a position to intrude with mentioned movable beam 3 when the latter is further lowered during stated first compacting step for impressing to mentioned movable beam 3 an upwardly directed thrust serving to the elastic return of the compacted powder mass to raise mentioned movable beam 3 instantly after said first compacting step, permitting the expulsion of the remaining air; a flywheel 7″ disposed above stated fixed heat seventy one, a screw 7′ threadedly engaged to stated flywheel 7″ and carried by said mounted head seventy one; motor means 7 supplied for alternatively imparting to said flywheel 7″ and screw 7′ rotation in a single and within the different direction for lowering and raising flywheel and screw, and control means for controlling said motor means 7 to operate stated flywheel and screw within the lowering course in due time for impacting mentioned movable beam three and performing a powerful second and ultimate compacting step of the powder materials immediately after the elastical return of the powder materials; and hydraulic circuit means for timely controlling and energizing all the pairs of said hydraulic piston means, said hydraulic circuit interconnecting all the pairs of mentioned hydraulic piston means.
In accordance with the invention, there may be offered a flywheel and screw press for producing ceramic articles comprising, together, a base having an upper floor, a hard and fast head, support means supporting the mounted head in fixed place upwardly spaced from the higher floor of the base, a movable beam positioned within the space between the higher surface and the mounted head and being guided on help means for motion toward and away from the upper floor, mould means carried by the bottom and provided with cavities open upwardly for receiving a cost of ceramic powder materials, 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 offered 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 mushy precompression inflicting a primary thickness discount of the powder mass and an considerable expulsion of the air enclosed therein, a third pair of hydraulic piston means carried by the fixed head and controlled for performing on the movable beam and performing the primary compacting step after the smooth precompression, a fourth pair of elastically compressible hydraulic piston means carried by the base and supplied with adjustable rod ends and able to intrude 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 lift the movable beam instantly after the primary compacting step, allowing the expulsion of the remaining air, a flywheel disposed above the mounted head, a screw threadably engaged to the flywheel and carried by the mounted head, motor means supplied for alternatively imparting to the flywheel and the screw rotation in a single and within the different path for reducing and elevating the flywheel and screw, and control means for controlling the motor means to operate the flywheel and screw within the decreasing path in due time for impacting the movable beam and performing a robust second and ultimate compacting step of the powder materials instantly after the elastic return of the powder materials, and hydraulic circuit means for timely controlling and driving all of the pairs of the hydraulic piston means, the hydraulic circuit means interconnecting the entire pairs of the hydraulic piston means.
A flywheel and screw press for compacting a ceramic powder includes a base, a fixed press member disposed at a spaced location above the bottom, a beam movably situated in the area between the base and the mounted press member, and a plurality of hydraulic piston members mounted to the bottom and the fixed press member for variably controlling the compaction of the ceramic powder. The invention relates, usually, to ceramic physique presses and, more significantly, to an improved flywheel and screw press for producing ceramic or refractory articles. Business Profile : We’re Manufacturers and suppliers of; Hydraulic Thread Rolling Machine, Thread Slicing Machine, Scaffolding Tie rod & Prob Machines, Forging & Friction Screw Presses, U Bolt Manufacturing Plants, Thread Roll Dies and Flat Die Thread Rolling Machine. Additionally, this type of static pressure press is nice in look, cost-efficient in energy consumption and stable in efficiency. We’re Leading supplier of Affect mill in our area Our minimum output capability of Impression Mill begins from 5 TPH to 30 TPH We’ve got served our Impression mill machines in more than 20 states in india together with Telenghana, Andra Pradesh, West Bengal, Chhatisgarh, Madhya Pradesh, Odisha and majorly Rajasthan We have now also installed many Refractory grinding units wherein Impact mill plays most important position for the purpose of grinding Fly Ash Bricks , Slag and so forth Its predominant software is for the purpose of grinding quartz, Slag, Sand Stoene, Gravel stone, Coal, Limestone and so forth. The power of the pistons 6 and 6′, nonetheless, is greater than the power of the pistons 9 and 9′. 2. A screw press as claimed in claim 1 whereby, stated piston motor means for every pinion comprises a pair of oil-hydraulic piston motors. I’m Involved to purchase “Screw Press Refractory”. Analysis demonstrates that the interval between the primary urgent step for the elimination of air and the ultimate pressing step could also be very quick, shorter than the ones permitted by the present mechanical means. Presses of various energy shall have pistons with different diameters for various working pressures. Fifth piston means 13, 13′ are supplied for exerting a pressure in a route opposite to the motion imparted by the third piston means 2, 2′ and set up an equilibrium of the forces acting on the beam. Deep Industrial Corporation, grew into one of the vital celebrated names as a manufacturer of Energy Presses, Plate Shearing Machines, Vivid Bars, and many others.
The invention pertains to a screw press having a flywheel rotationally related to the spindle by means of a friction coupling and a spindle displaceable axially in a nut mounted in the upper cross member of the press body, whereby the flywheel has external toothing to a width similar to the utmost press stroke plus the width of the driving pinion, a plurality of pinions engaging in the mentioned 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 higher cross member of the press body. 3, lines 40 and 41 are consultant of the screw stroke, and lines 30, 31, 31′, 33, 34, 35, 36 and forty three are representative of the stroke of beam three. In a high place 30 the beam 3 is supported by the pistons 9 and 9′ against the adjustable plunger heads 6″ and 6′” of the pistons 6 and 6′. The ability of the pistons 9 and 9′ is such that it exceeds the weight of the beam 3 and the force of the pistons 5 and 5′. This new structure is based on the refractory forming characters, which is our company developed based mostly on SD20 Collection Electrical Screw Press for the refractory trade. Shortly before the end of the downward stroke of the spindle 9 the rotational speed of the pump 27 and therefore the rotational speed of the flywheel 17 and the spindle 9 are lowered to zero throughout the remainder of the stroke of the spindle 9. When the rotational pace is diminished the four-way valve 41 is displaced from the rest place to the correct and the road 42a is connected to a second strain-limiting valve 43. The pressure which could be regulated by the strain-limiting valve forty three limits, by the use of the pressure-limiting valve 42, the strain current within the pipeline 31 to the braking stress required for braking the flywheel 17. Concerning the present urgent machines, the number of strokes achieved between the washing phases of the moulds, is from 2 to three times as great. Because the electrical motors are twice accelerated from rest to the required rotational pace and braked once more during every working cycle, correspondingly excessive present heat losses are unavoidable and also the idle power absorbed by the motor is disadvantageous. Experimentally, with a pressing machine in accordance with the current invention, it would be noticed that the mandatory energy for the primary pressing operation, with predetermined plenty of ceramic, can be quite low, approximately 10-12,000 kg., in opposition to the 400,000 Kg of the second pressing operations, which is quite different from the present urgent machines, which require about 50 to a hundred and fifty tons for the first pressing step.
Line 43 indicates the extraction of the pressed half 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 identified command circuits. SD10-315 was the primary set Refractory Electrical Program-managed Screw Press for Refractory trade in China which was our firm developped and produced, even the primary set on the planet. Shortly earlier than the impact of the upper half of the forging die, secured to the slide 7 upon the forging work-piece mendacity in the decrease half of the forging die, the traces 31 to the axial piston motor 26 are brief-circuited, as the magnetically managed 4-manner valve forty one is moved from its rest position (as proven in FIG. This Friction Screw Press Down Stroke has been developed from best grade steel. This machine can be appropriate for producing naushadar bricks and head refractory. Change 23 energizes the valve 17 to disconnect the pilot of a examine valve 22 and introduces oil at a stress of 100 atmospheres into the chambers 15 and 15′ of dynamic oil accumulators 14, 14′ which may be hydraulically connected to pistons 13, 13′ as shown in FIGS. The torlence of controlling energy of Electric Screw Press is 0.2%, and the torlence of influence energy is only 1%. The small quantities of oil running off from the pressure-limiting valves forty two and forty three and the four-approach valve 41 during the reversing and likewise as leaked oil are fed back once more into the closed circuit by a pump 45 pushed by a motor 44. A spring-centered, stress-managed three-method valve 46 is offered in order to ensure the feed strain required on the pump 27 and regulated by the pressure-limiting valve forty seven. The three-manner valve forty six is actuated in such a method that the respective low-strain facet of the closed circuit is linked to the strain-limiting valve 47, the feed strain being maintained by the pump forty five. 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 part 32c of the tank 32, is fed through filters 50 and coolers fifty one by a pump 49 driven by an electric motor 48 and is stored partly 32a of the tank 32. Due to this fact, as an alternative of ending the first urgent with the worth of the pressing, the amount 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 resembling framework, flywheel, screw nut, the slider, lubricating mechanism, braking mechanism and electric parts corresponding to servo motor, electric control cupboard, working button station.
In order to provide the oil-hydraulic motors, an oil station is required which comprises an electric motor, oil pump, high-pressure accumulator and control units in addition to gadgets for filtering and cooling the oil, and which along with the press is disposed on the office flooring, in a basement or on a scaffold and is linked to the oil-hydraulic motors by the use of versatile excessive-stress ducts which compensate for the actions of the press. All pistons function at 100 atm, roughly, as working pressure. 9, the step represented by line 30 represents the fast lowering down stroke path of the beam three because of its personal weight and the motion of the pistons 5 and 5′ when the discharge of the pistons 9 and 9′ is commanded by the valves eight-12 and 10. The line portion 31 is the braked down motion to satisfy the mass to be pressed at filling (level 32) with low speed, to be able to avoid the expulsion of the ceramic powder from the casting mould and a violent contact between the punches and the moulds, within the case of mirror moulds (nonpentrating). Is a new product which integrated screw press advangtage of south china and north structure adopts the break up body and solves the problem of the rack fracture ,which has the characteristics of straightforward and affordable tools construction, stunning appearance, easy operation, upkeep and methodology to finish the work of workstation is that the motor drives pinion after which pinion drives flywheel rotating with vitality releasing for the requirements of the equipment is mainly used within the precision forging of ferrous metals, nonferrous metals, refractory supplies and different industries. According to the invention every axial piston motor or every pair of axial piston motors respectively related to a pinion has related to it on the platform a controllable pump which is pushed by a respective electric motor and is reversible with respect to the fluid supply path. Enterprise Profile : We are Producers and suppliers of Energy Press Piller Sort, Energy Press Two Station, Power Press two Gear, C Type Power Press, Friction Screw Presses, Down Stroke, Forging Press Up Stroke Metal Physique, Pneumatic Clutch Press, Billet Shearing Machine, Heavy Responsibility Double Column Planner, Plano Miller, Plano Miller Cum Planner, Cone Pulley and plenty of forms of Industrial Machines. The pressure applied at this moment is set and given by the weight of the beam three plus the motion of the pistons 5 and 5′ (much less the force of the pistons 16″ of support of the mould in case of use of the mirror sort mould).