This Screw Press is often known as Forging Presses or Screw Presses. A forced lubricating system will feed the lubricate oil into the closed screw-nut system by way of special pipeline, and form an oil screen between each touching parts to cut back the components friction when press works. A plurality of pinions participating in the mentioned toothed rim are each driven by an oil-hydraulic axial piston motor or by a pair of oil-hydraulic axial piston motors and the axial piston motors together with the pinions are disposed on a platform surrounding the upper cross member of the press body. No. 3,359,608, issued to the current inventor, discloses a friction and screw press for the manufacture of ceramic articles. According to the info show: knowledge disparity, as a result of the double-disc friction press operation will exist when stealing hammer, missing hammer phenomenon, the output will likely be floater than the CNC electric screw press, but in response to the provisions of the company to suppress the hammer merchandise, Two kinds of pressure brick equipment production are comparable. Moreover, it’s attainable to control the motion of the flywheel 7″ and screw 7′ by operating a hydraulic motor 7, having a relatively diminished dimension, installed on the beam 8 to maneuver the screw 7 by way of a detachably coupled system which is hydraulically interconnected to pistons 9, 9′. Line forty one illustrates the return of the screw, which must be thrown in an up motion with a power of much less worth than that provided for the elastic return of the structure of the pressing machine. The stress exerted by the screw 7′ on the material may be predetermined in an actual method, with the possibility of using limited torque turbines for the stroke of the flywheel, resembling hydraulic motors, electrical motors or friction motors with restricted torque relatively to the motor used as much as this second. During the acceleration phases for the downward motion and the upward motion of the spindle 9 the electric motor 28 operates with approximately fixed power and fixed rotational velocity which ensures a excessive diploma of electrical effectivity of the motor 28. The constant motor energy is converted and totally utilized by the oil pump 27 operating as a torque converter. Mentioned circuit further comprising control means for controlling the stress of the hydraulic fluid fed to mentioned motor means and a plurality of stress levels, one of said stages being controllable as braking strain for said flywheel, and a refill pump means for returning leaked hydraulic fluid to stated circuit.
Line forty three indicates the extraction of the pressed half by the mould due to the piston commanded by the respective valves sixty three and sixty four in synchronism with the beam and the screw in a new up movement achieved by recognized command circuits. SD10-315 was the primary set Refractory Electric Program-controlled Screw Press for Refractory industry in China which was our company developped and produced, even the primary set on the earth. Shortly before the influence of the higher 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 strains 31 to the axial piston motor 26 are short-circuited, as the magnetically managed 4-method valve 41 is moved from its rest place (as shown in FIG. This Friction Screw Press Down Stroke has been developed from finest grade steel. This machine can also be suitable for producing naushadar bricks and head refractory. Switch 23 energizes the valve 17 to disconnect the pilot of a verify valve 22 and introduces oil at a strain of one hundred atmospheres into the chambers 15 and 15′ of dynamic oil accumulators 14, 14′ which can be hydraulically connected to pistons 13, thirteen’ as proven in FIGS. The torlence of controlling power of Electric Screw Press is zero.2%, and the torlence of impression power is just one%. The small portions of oil running off from the stress-limiting valves 42 and 43 and the four-means valve forty one throughout the reversing and likewise as leaked oil are fed back once more into the closed circuit by a pump 45 driven by a motor forty four. A spring-centered, pressure-controlled three-approach valve 46 is offered so as to ensure the feed pressure required on the pump 27 and regulated by the pressure-limiting valve 47. The three-way valve forty six is actuated in such a way that the respective low-pressure facet of the closed circuit is related to the strain-limiting valve 47, the feed stress being maintained by the pump forty five. For cleaning and cooling the oil, the oil which has escaped from the circuit, is collected in part 32b of the tank 32, handed on after preliminary cleansing by sedimentation to part 32c of the tank 32, is fed by filters 50 and coolers fifty one by a pump 49 pushed by an electrical motor 48 and is stored partially 32a of the tank 32. Therefore, instead of ending the first pressing with the value of the pressing, the volume of oil at excessive pressure could also be used. The electrical screw press is driven by everlasting magnet synchronous servo motor,and include mechanical pats corresponding to framework, flywheel, screw nut, the slider, lubricating mechanism, braking mechanism and electric components resembling servo motor, electrical control cupboard, working button station.
1. A flywheel and screw press for producing ceramic articles comprising, in combination, a base having an upper surface; a hard and fast head; help means supporting mentioned fastened head in fixed place upwardly spaced from said upper floor of mentioned base; a movable beam located within the space between said higher floor and stated fastened head and being guided on mentioned assist means for motion towards and away from said higher floor; mould means carried by stated base and supplied with cavities open upwardly for receiving a charge of ceramic powder materials, punch means carried by mentioned movable beam and designed to cooperate with said cavities for forming ceramic articles, a first pair of hydraulic piston means carried by stated base and supplied for imparting an upwardly directed thrust to mentioned movable beam; a second pair of hydraulic piston means carried by stated fastened head and offered for imparting a downwardly directed thrust to stated movable beam, stated first and second pair of hydraulic piston means cooperating for controlling the downward stroke of stated movable beam 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 carried by stated fixed head and managed for appearing on the movable beam and performing the primary compacting step after the delicate pre-compression; a fourth pair of elastically compressible hydraulic piston means carried by said base and provided with adjustable rod ends and in a position to intrude with said movable beam when the latter is additional lowered throughout said first compacting step for impressing to mentioned movable beam an upwardly directed thrust serving to the elastic return of the compacted powder mass to raise stated movable beam instantly after stated first compacting step, permitting the expulsion of the remaining air; a flywheel disposed above stated fastened head, a screw threadedly engaged to said flywheel and carried by said mounted head; motor means supplied for alternatively imparting to mentioned flywheel and screw rotation in one and within the other path for lowering and elevating said flywheel and screw, and control means for controlling stated motor means to function mentioned flywheel and screw within the reducing path in due time for impacting stated movable beam and performing a powerful second and supreme compacting step of the powder material instantly after the elastic return of the powder material; and hydraulic circuit means for well timed controlling and energizing all the pairs of said hydraulic piston means, mentioned hydraulic circuit means, interconnecting all the pairs of said hydraulic piston means.
The pressure of the pistons 13, thirteen’ is predetermined by charging the dynamic oil accumulator 14 (with a sort of inert gas cost) with the pressure of the oil dynamic circuit derived from the pump 18 limiting it and discharging it with the maximum strain valve 16′. At current, the corporate’s merchandise mainly include: Friction Screw Press;J53, J54 sequence of double disc friction screw press; J67, J93 sequence of refractory press; EP sequence of electrical screw press; MP sequence of sizzling forging press. The force applied throughout this section is, therefore, regulated by a pressostat which commands (at the same time with the timer and with the purpose of disconnecting the intervening parts) the valves fifty six and fifty seven, respectively, shut the valves sixty one and 61′ of rapid discharge of the pistons 2 and a pair of’. We are leading industrial press machine supplier, specializing in production of high quality press machines for sale, supply producer worth press machine and refractory brick press for buyers, contact us for prompting your order. The time duration of the prior section 36 may be changed, by changing the moment of stroke of the flywheel, for example, by a fixed signal hooked up to the ear plus a regulated timer, in such a approach that the stress of the screw reaches the worth when the air is taken out from the mass to be pressed, without pointless delays. On this situation, the screw spindle and the related flywheel function to execute solely the second comparting step and could also be thrown from their highest place with a coordinate anticipation and utilizing a lowered power motor able to impart the due kinetic energy in more than a complete turn of the flywheel as an alternative of in 1 / 4 flip. The lifting capacity is 200tons, and we are able to assemble sequence press machine with nominal power from 160 tons to eight,000 tons Faithfulness, deploitation, innovation and good service is our primary managing precept. Business Profile : Producers of Friction Screw Presses, Forging Press & Energy Press. The control means for mentioned motor means embody means in a position to anticipate the beginning of the decreasing displacement of the flywheel and screw so that the second compacting step is performed immediately immediately after the elastic return of the powder materials. Friction Screw Press Down Stroke is manufactured utilizing high grade chrome steel materials which supplies it a extremely sturdy service life. The drive applied to the mass during this last part is given by the load of the beam 3 plus the stress of the pistons 5-5′, minus the force exerted by the pistons 13 and 13′, which is opposite to the prior one, minus the eventual pistons sixteen”.
To be able to provide the oil-hydraulic motors, an oil station is required which contains an electrical motor, oil pump, excessive-pressure accumulator and management gadgets as well as gadgets for filtering and cooling the oil, and which in addition to the press is disposed on the workplace ground, in a basement or on a scaffold and is connected to the oil-hydraulic motors by means of flexible high-strain ducts which compensate for the movements of the press. All pistons function at one hundred atm, roughly, as working pressure. 9, 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. The road portion 31 is the braked down motion to fulfill the mass to be pressed at filling (stage 32) with low velocity, as a way to keep away from 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 built-in 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 characteristics of easy and reasonable tools construction, beautiful appearance, straightforward operation, maintenance and methodology to complete the work of workstation is that the motor drives pinion after which pinion drives flywheel rotating with vitality releasing for the necessities of the gear is principally used within the precision forging of ferrous metals, nonferrous metals, refractory supplies and different industries. Based on the invention each axial piston motor or every pair of axial piston motors respectively associated with 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 fluid supply course. Business Profile : We are Manufacturers and suppliers of Energy Press Piller Kind, Energy Press Two Station, Power Press two Gear, C Kind Energy 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 lots of sorts of Industrial Machines. The pressure applied at this moment is decided and given by the weight of the beam three plus the action of the pistons 5 and 5′ (less the power of the pistons 16″ of help of the mould in case of use of the mirror kind mould).
Thus, in accordance with the invention, there may be offered a flywheel and screw press for producing ceramic articles comprising, together, a base 72 having an upper surface; a set head seventy one; support means 73, 73 supporting mentioned fixed head 71 in fixed place upwardly spaced from said upper surface of said base seventy two; a movable beam 3 situated in the space between mentioned higher surface and said mounted head 71 and being guided on said support means seventy three, 74 for movement toward and away from said higher surface; mould means carried by said base seventy one and supplied with cavities open upwardly for receiving a cost of ceramic powder materials, punch means carried by said 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 mentioned base 72 and offered for imparting an upwardly directed thrust to stated movable beam three; a second pair of hydraulic piston means carried by said fastened head and provided for imparting a downwardly directed thrust to said 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 three for imparting to the powder in the cavities a smooth pre-compression inflicting a first thickness reduction of the powder mass and an appreciable expulsion of the air enclosed; a third pair of hydraulic piston means 5, 5′ carried by mentioned fixed head 7 and controlled for acting on the movable beam 3 and performing the primary compacting step after the smooth pre-compression; a fourth pair of elastically compressible hydraulic piston means 13, thirteen’ carried by said base seventy two and supplied with adjustable rod ends and capable of intervene with stated movable beam 3 when the latter is further lowered throughout 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 raise mentioned movable beam three instantly after said first compacting step, allowing the expulsion of the remaining air; a flywheel 7″ disposed above said fastened heat 71, a screw 7′ threadedly engaged to said flywheel 7″ and carried by stated fixed head 71; motor means 7 provided for alternatively imparting to said flywheel 7″ and screw 7′ rotation in one and within the different path for lowering and raising flywheel and screw, and management means for controlling said motor means 7 to operate said flywheel and screw in the decreasing course in due time for impacting stated movable beam 3 and performing a strong second and supreme 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 of the pairs of mentioned hydraulic piston means, stated hydraulic circuit interconnecting all of the pairs of said hydraulic piston means.
Enterprise Profile : Krishan Products is Serving the Machine tools Trade and is likely one of the pioneer Manufacturers of ‘KRISHAN’ brand Power presses, C- type power presses, Pillar sort power presses, Friction screw presses and press brakes in Handbook & Mechanical. A compact design and a rise in operational reliability are achieved if, each axial piston motor or each pair of axial piston motors which is associated with a pinion and the associated reversible pump are disposed in a closed circuit which additionally accommodates the control means for feed stress and a number of-stage stress controllable in a single stage as braking stress and which is related to a refill pump. With a purpose to cut back the investment for manufacturing equipment, we can additionally make the modification from outdated kind friction screw press to new electrical screw press. Capacity of forging hydraulic press we have made is up to 50000 tons and up to 120 tons for manipulator and up to eight meters in diameter for ring rolling mill. No. three,359,608 chambers of the pistons 2, 2′ are fed by an illustrative circuit, which provides a managed oil volume at excessive pressure, or strain regulation through a “pressostat” 18 or 19, shown in FIG. Double disk friction screw press中文雙盤摩擦壓力機，點擊查查權威綫上辭典詳細解釋double disk friction screw press的中文翻譯，double disk friction screw press的發音，音標，用法和例句等。 The element of the first pressing operation is disposed coaxially reverse to the compacting piston or beam three on base 72, if the primary pressing ingredient is a hydraulic piston. The thing of the invention is to reduce the structural price of these screw presses concurrently growing operational reliability. A screw press has a flywheel rotationally related to the press spindle by the use of a friction coupling. Every circuit can have related to it its own oil tank 32, or the circuits of 1 half of the press or all the circuits can have a common oil tank 32. The platform 25 is formed as a trough 33 with internal aspect partitions 33i, outer facet partitions 33a and the bottom 33b, the trough 33 supporting your complete oil hydraulic system and being adequately dimensioned to obtain all the oil present within the oil circuit. The top nations of suppliers are India, China, from which the share of friction screw press machine provide is three%, 96% respectively. Double-disk friction screw press is a commonly used friction screw press which is extensively used for compression moulding of die forging, extrusion, scrap minimize, bending, revision and refractory of ferrous and non-ferrous steel.
Line forty three indicates the extraction of the pressed part by the mould because of the piston commanded by the respective valves sixty three and 64 in synchronism with the beam and the screw in a brand new up movement achieved by identified command circuits. SD10-315 was the first set Refractory Electrical Program-managed Screw Press for Refractory industry in China which was our firm developped and produced, even the primary set on the earth. Shortly earlier than the impact of the higher half of the forging die, secured to the slide 7 upon the forging work-piece mendacity 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-method valve forty one is moved from its relaxation place (as shown in FIG. This Friction Screw Press Down Stroke has been developed from finest grade metal. This machine can be appropriate for producing naushadar bricks and head refractory. Change 23 energizes the valve 17 to disconnect the pilot of a test valve 22 and introduces oil at a pressure of 100 atmospheres into the chambers 15 and 15′ of dynamic oil accumulators 14, 14′ which may be hydraulically connected to pistons thirteen, 13′ as proven in FIGS. The torlence of controlling vitality of Electrical Screw Press is zero.2%, and the torlence of influence power is just one%. The small portions of oil operating off from the pressure-limiting valves forty two and forty three and the four-approach valve forty one through the reversing and likewise as leaked oil are fed again once more into the closed circuit by a pump forty five pushed by a motor forty four. A spring-centered, strain-managed three-manner valve forty six is supplied with a view to make sure the feed strain required at the pump 27 and controlled by the pressure-limiting valve forty seven. The three-method valve 46 is actuated in such a manner that the respective low-stress side of the closed circuit is related to the pressure-limiting valve forty seven, the feed stress being maintained by the pump 45. For cleansing and cooling the oil, the oil which has escaped from the circuit, is collected partially 32b of the tank 32, handed on after preliminary cleaning by sedimentation to half 32c of the tank 32, is fed through filters 50 and coolers fifty one by a pump forty nine pushed by an electric motor forty eight and is stored in part 32a of the tank 32. Due to this fact, instead of ending the first pressing with the value of the pressing, the quantity of oil at high stress may be used. The electrical screw press is pushed by everlasting magnet synchronous servo motor,and consist of mechanical pats akin to framework, flywheel, screw nut, the slider, lubricating mechanism, braking mechanism and electric parts comparable to servo motor, electrical management cupboard, working button station.
The torque to be utilized necessitates correspondingly large and heavy motors which, other than the fact that they have an unfavorable ratio of torque to second of inertia, result in the structural drawback that the spindle along with the flywheel and toothed rim must be mounted axially non-displaceably in the higher cross member of the press frame and the spindle nut have to be mounted within the slide of the press, and this leads to unfavorable exposure of the spindle to stress and torsion. The inclined portion 34 represents the second compression given by the motion of the pistons 2 and a pair of’, or the effect of the oil stress of the oil coming into through the valve fifty five, commanded by the pilot 56 which is pushed by a signal operate depending on the position of the beam 3 throughout the down movement. The advantage of static stress kind press machine is its static stress screw-nuts and the static pressure bearing. All the technical indicators and efficiency of the EPC-D electrical screw press produced by Qingdao Wantai Machine Software Technology Co. Ltd. No. three,359,608, a primary and second compacting step were performed by a screw spindle, in order that a lot of the pressing cycle time was consumed by the displacement of the screw spindle. 164 friction screw press machine products are supplied on the market by suppliers on , of which punching machines accounts for 19%, hydraulic press accounts for 4%, and filter press gear accounts for 1%. A wide variety of friction screw press machine choices can be found to you, There are 149 suppliers who sells friction screw press machine on , mainly positioned in Asia. three. The pinions 23 are mounted in bearing blocks 24 which are supported by a platform 25 which surrounds the higher cross member three of the press body 1. Each pinion 23 is driven by two axial piston motors, an axial piston motor 26o disposed above the pinion and an axial piston motor 26u disposed under the pinion 23. The width of the toothed rim 22 is such that throughout the full stroke of the spindle 9 executed by the toothed rim 22 the pinions 23 are at all times in complete engagement with the exterior toothing of the rim 22. Subsidy Mortgage Effectively as Screw Press forgingMachine Mortgage obtainable on all type of Industrial Tasks. 2, line one hundred indicates the trail of the beam three and the road one hundred and one the paths of the screw 7′ during the step of putting the press 70 into operation. 7 presses the final discharge line fifty one of the hydraulic circuit. Screw presses, which are preferably used as drop-forging machines on account of their design benefits, are restricted in their influence power by friction wheel drive (friction screw presses), and due to this fact screw presses with an affect power of from forty MN (Meganewtons) are often provided, and screw presses with an influence of from 80 MN are usually provided, with a gearwheel drive, for which function the flywheel has external toothing and has motor-pushed pinions participating in its toothed rim.
Moreover, the sum of the times inherent to the primary and second urgent step impeded discount of the interval of a complete compacting cycle; and, the interval was at all times higher than three seconds. In accordance with the exemplary embodiment an axial piston motor 26 (mounted displacement motor) and an axial piston pump 27 (variable displacement pump), i.e. axial piston machines, are offered as these are probably the most suitable. During the fast up movement of beam 3 as a result of pistons 9 and 9′, the oil retained within the pistons 2 and a couple of’ is compelled to exit through the valves sixty one 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 velocity of the spindle desired in every case and which determines the delivery of the pump 27 at a continuing rotational velocity of the electrical motor 28. A piston-cylinder association, which is acted upon, by means of the management 36, by a pump 39 driven by an electric motor 38 along side a pressure accumulator forty, acts as the actuating drive 37. Pistons 9, 9′ may be mounted on base seventy two for operative engagement of the plungers thereof with beam 3 for the return stroke of the beam 3 after the urgent cycle, and the ensuing emptying of the chambers associated with the two pistons 2, 2′. Disadvantages of Friction Disk Screw Press: long transmission chain and high power consumption, extra quick-wear components,not accurate controlling and labor-intensive, noisy, unsafe, etc. The press, with easy in construction, massive energy, low noise, long life, secure and dependable in operation, handy service and so forth, will be extensively used in aviation, auto, tractor, instrument manufacturing, textiles equipment industries and so on. Refractory Recycling Crusher refractory value of installation in uaecement Basalt Crusher CELL CRUSHER Cellular Crusher concrete recycling; crushing tools; coal mining tools; sand making machine; about refractory cost of installation in uaecement. Double-disk Friction Screw Press In Uganda. In accordance with the current invention, if there isn’t a inversion of the flywheel between the first and second urgent operation, there is less wear and a minor use of vitality to function the press. This automated electrical screw press is a a number of purposeful fire bricks molding machine. This advantageously means that the torque applied to the flywheel may be thrown by a motor instantly and coaxially mounted on the flywheel, and not by a disc friction system.