Refractory Friction Screw Press
This Screw Press is also called Forging Presses or Screw Presses. The invention pertains to a screw press having a flywheel rotationally linked to the spindle by the use of a friction coupling and a spindle displaceable axially in a nut mounted within the upper cross member of the press body, wherein the flywheel has external toothing to a width corresponding to the utmost press stroke plus the width of the driving pinion, a plurality of pinions participating in 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 axial piston motors along with the pinions are disposed on a platform surrounding the higher cross member of the press frame. 3, traces forty and forty one are consultant of the screw stroke, and features 30, 31, 31′, 33, 34, 35, 36 and forty three are representative of the stroke of beam 3. In a excessive 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 ability of the pistons 9 and 9′ is such that it exceeds the burden of the beam 3 and the power of the pistons 5 and 5′. This new construction is predicated on the refractory forming characters, which is our firm developed based mostly on SD20 Series Electric Screw Press for the refractory industry. Shortly earlier than the tip of the downward stroke of the spindle 9 the rotational speed of the pump 27 and hence the rotational speed of the flywheel 17 and the spindle 9 are decreased to zero during the remainder of the stroke of the spindle 9. When the rotational speed is reduced the 4-approach valve forty one is displaced from the rest place to the appropriate and the road 42a is related to a second strain-limiting valve 43. The strain which might be regulated by the strain-limiting valve 43 limits, by means of the stress-limiting valve 42, the stress current within the pipeline 31 to the braking pressure required for braking the flywheel 17. Regarding the present pressing machines, the number of strokes achieved between the washing phases of the moulds, is from 2 to three instances as great. For the reason that electrical motors are twice accelerated from rest to the required rotational velocity and braked again throughout each working cycle, correspondingly high current heat losses are unavoidable and in addition the idle power absorbed by the motor is disadvantageous. Experimentally, with a urgent machine in accordance with the current invention, it will be noticed that the necessary power for the first urgent operation, with predetermined plenty of ceramic, will be fairly low, approximately 10-12,000 kg., against the 400,000 Kg of the second urgent operations, which is kind of different from the current pressing machines, which require about 50 to one hundred fifty tons for the primary pressing step.
Enterprise Profile : Krishan Merchandise is Serving the Machine tools Industry and is likely one of the pioneer Producers of ‘KRISHAN’ model Power presses, C- sort power presses, Pillar kind power presses, Friction screw presses and press brakes in Guide & Mechanical. A compact design and a rise in operational reliability are achieved if, every axial piston motor or every pair of axial piston motors which is associated with a pinion and the related reversible pump are disposed in a closed circuit which also contains the management means for feed pressure and a number of-stage stress controllable in a single stage as braking stress and which is connected to a refill pump. With a view to cut back the funding for production equipment, we are able to additionally make the modification from previous sort friction screw press to new electric screw press. Capability of forging hydraulic press we’ve made is as much as 50000 tons and up to 120 tons for manipulator and as much as 8 meters in diameter for ring rolling mill. No. three,359,608 chambers of the pistons 2, 2′ are fed by an illustrative circuit, which offers a controlled oil quantity at high pressure, or pressure regulation by a “pressostat” 18 or 19, proven 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 primary pressing operation is disposed coaxially reverse to the compacting piston or beam three on base seventy two, if the primary pressing component is a hydraulic piston. The thing of the invention is to reduce the structural cost of those screw presses at the same time as growing operational reliability. A screw press has a flywheel rotationally connected to the press spindle by way of a friction coupling. Each circuit can have related to it its own oil tank 32, or the circuits of one half of the press or all of the circuits can have a standard oil tank 32. The platform 25 is fashioned as a trough 33 with inside aspect walls 33i, outer side walls 33a and the base 33b, the trough 33 supporting all the oil hydraulic system and being adequately dimensioned to receive all of the oil current in the oil circuit. The highest countries of suppliers are India, China, from which the proportion of friction screw press machine provide is three%, ninety six% respectively. Double-disk friction screw press is a commonly used friction screw press which is broadly used for compression moulding of die forging, extrusion, scrap cut, bending, revision and refractory of ferrous and non-ferrous metallic.
Jinan Linteng Forging Machinery Co., Ltd. Level forty two is the one reached after the material has suffered the strain of the screw and represents the final disposition of the pressed mass. EPC-D numerical management electrical screw press adopt switched reluctance motor which is probably the most advanced and best suited for the die forging trade The motor with low speed and enormous beginning torque apply to the optimistic and adverse work.Due to this fact, the lifetime of the motor is extended and saves power.Electronic control system use PLC management with man-machine interface integration whereas realizing the automation of forging manufacturing with robotic or other automation gear connectionThe pinion are made from special metal, which solved the vulnerability problem of the bakelite gear without damaging gearwheel and extended the pinion life greater than 5 instances than bakelite gear;The screw and the flywheel undertake the spline connection, which improves the workpiece interchangeability. Enterprise Profile : Leading producer of Surface Grinder, Plano Miller, Planner Machine, Grinding and Milling Equipment, Machine Tools & Equipment and Friction Screw Press used for Refractories. Depending upon the tooling employed on a press, it meets completely different wants of Non-Ferrous, Metal, Brass, Aluminium stamping’s, Scorching Forgings and piercing operations. Friction screw press can be used in die forging, extruding, innovative, bending and correcting for nonferrous and ferrous metal and pressing and forming work of refractory materials as effectively. Furthermore, the regulation of the different phases amongst them, which is totally different from what would occur with the current machines, where the signalization of the primary and second urgent steps are associated one to the other. The point 102″ is the arrival level after the first cycle, with the traditional pressing machine. Thus, the overall strain time is 285 ms as compared to a minimal of 1,300 ms of the urgent machines. The third pair of hydraulic piston means are, in a most popular embodiment, single appearing hydraulic jacks 5, 5′, each having chamber crammed with oil at diminished strain through the decreasing movement of the movable beam three and energized with an sufficient excessive strain, for performing the primary comparting step. Enterprise Profile : We’re Producers and suppliers of; Forging Press Machine & Friction Screw Presses & Machine Tools, Down Stroke Machine and Up Stroke Machine.
Thus, in accordance with the invention, there’s provided a flywheel and screw press for producing ceramic articles comprising, in combination, a base seventy two having an higher surface; a set head seventy one; support means 73, 73 supporting mentioned fixed head seventy one in fixed place upwardly spaced from stated higher floor of stated base seventy two; a movable beam 3 positioned in the space between mentioned higher floor and mentioned mounted head 71 and being guided on said support means 73, seventy four for motion toward and away from mentioned upper surface; mould means carried by said base 71 and provided with cavities open upwardly for receiving a charge of ceramic powder materials, punch means carried by stated movable beam three and designed to cooperate with mentioned cavities for forming ceramic articles, a first pair of hydraulic piston means 9, 9′ carried by said base seventy two and supplied for imparting an upwardly directed thrust to said movable beam 3; a second pair of hydraulic piston means carried by said fastened head and supplied for imparting a downwardly directed thrust to stated movable beam three, mentioned first 9, 9′ and second 6, 6′ pair of hydraulic piston means cooperating for controlling the downward stroke of mentioned movable beam three for imparting to the powder in the cavities a tender pre-compression causing a primary thickness reduction of the powder mass and an appreciable expulsion of the air enclosed; a 3rd pair of hydraulic piston means 5, 5′ carried by said fastened head 7 and controlled for performing on the movable beam 3 and performing the primary compacting step after the soft pre-compression; a fourth pair of elastically compressible hydraulic piston means 13, thirteen’ carried by mentioned base 72 and provided with adjustable rod ends and in a position to intrude with stated movable beam three when the latter is additional lowered throughout mentioned first compacting step for impressing to stated movable beam three an upwardly directed thrust helping the elastic return of the compacted powder mass to lift mentioned movable beam three instantly after mentioned first compacting step, permitting the expulsion of the remaining air; a flywheel 7″ disposed above stated fastened warmth seventy one, a screw 7′ threadedly engaged to mentioned flywheel 7″ and carried by said mounted head 71; motor means 7 supplied 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 stated motor means 7 to operate stated flywheel and screw within the reducing direction in due time for impacting mentioned movable beam three and performing a strong second and ultimate compacting step of the powder material immediately after the elastical return of the powder materials; and hydraulic circuit means for well timed controlling and energizing all the pairs of mentioned hydraulic piston means, stated hydraulic circuit interconnecting all of the pairs of said hydraulic piston means.
A flywheel and screw press for compacting a ceramic powder features a base, a hard and fast press member disposed at a spaced location above the bottom, a beam movably situated in the house between the bottom and the fixed press member, and a plurality of hydraulic piston members mounted to the base and the fixed press member for variably controlling the compaction of the ceramic powder. The invention relates, on the whole, to ceramic physique presses and, extra particularly, to an improved flywheel and screw press for producing ceramic or refractory articles. Enterprise Profile : We’re Producers and suppliers of; Hydraulic Thread Rolling Machine, Thread Chopping Machine, Scaffolding Tie rod & Prob Machines, Forging & Friction Screw Presses, U Bolt Manufacturing Plants, Thread Roll Dies and Flat Die Thread Rolling Machine. Additionally, such a static stress press is good in look, price-efficient in power consumption and stable in efficiency. We’re Leading provider of Influence mill in our area Our minimum output capacity of Impact Mill begins from 5 TPH to 30 TPH We’ve served our Influence mill machines in more than 20 states in india together with Telenghana, Andra Pradesh, West Bengal, Chhatisgarh, Madhya Pradesh, Odisha and majorly Rajasthan We’ve got also put in many Refractory grinding items wherein Impression mill plays most necessary position for the aim of grinding Fly Ash Bricks , Slag and so forth Its most important application is for the purpose of grinding quartz, Slag, Sand Stoene, Gravel stone, Coal, Limestone etc. The power of the pistons 6 and 6′, nevertheless, is greater than the force of the pistons 9 and 9′. 2. A screw press as claimed in claim 1 whereby, mentioned piston motor means for every pinion comprises a pair of oil-hydraulic piston motors. I’m Interested to purchase “Screw Press Refractory”. Research demonstrates that the interval between the primary urgent step for the elimination of air and the final urgent step could also be very brief, shorter than those permitted by the current mechanical means. Presses of various energy shall have pistons with completely different diameters for different working pressures. Fifth piston means thirteen, thirteen’ are provided for exerting a power in a course reverse to the motion imparted by the third piston means 2, 2′ and set up an equilibrium of the forces performing on the beam. Deep Industrial Company, grew into probably the most celebrated names as a manufacturer of Power Presses, Plate Shearing Machines, Shiny Bars, and so forth.
The drive of the pistons thirteen, 13′ is predetermined by charging the dynamic oil accumulator 14 (with a sort of inert gas cost) with the strain of the oil dynamic circuit derived from the pump 18 limiting it and discharging it with the maximum pressure valve 16′. At present, the corporate’s products mainly include: Friction Screw Press;J53, J54 sequence of double disc friction screw press; J67, J93 sequence of refractory press; EP series of electrical screw press; MP sequence of hot forging press. The force applied during this phase is, due to this fact, regulated by a pressostat which commands (at the identical time with the timer and with the aim of disconnecting the intervening elements) the valves fifty six and 57, respectively, close the valves sixty one and sixty one’ of speedy discharge of the pistons 2 and 2′. We are leading industrial press machine supplier, specializing in production of top quality press machines for sale, provide producer price press machine and refractory brick press for consumers, contact us for prompting your order. The time duration of the prior phase 36 may be changed, by altering the moment of stroke of the flywheel, for instance, by a hard and fast sign connected to the ear plus a regulated timer, in such a way that the pressure of the screw reaches the worth when the air is taken out from the mass to be pressed, without unnecessary delays. In this situation, the screw spindle and the related flywheel perform to execute only the second comparting step and may be thrown from their highest position with a coordinate anticipation and using a diminished power motor in a position to impart the due kinetic energy in more than a complete turn of the flywheel instead of in a quarter flip. The lifting capacity is 200tons, and we can assemble collection press machine with nominal force from 160 tons to 8,000 tons Faithfulness, deploitation, innovation and good service is our fundamental managing principle. Business Profile : Manufacturers of Friction Screw Presses, Forging Press & Power Press. The management means for said motor means embody means capable of anticipate the beginning of the reducing displacement of the flywheel and screw in order that the second compacting step is carried out without delay immediately after the elastic return of the powder material. Friction Screw Press Down Stroke is manufactured utilizing excessive grade stainless-steel material which gives it a highly sturdy service life. The drive utilized to the mass during this final part is given by the load of the beam three plus the pressure of the pistons 5-5′, minus the drive exerted by the pistons 13 and thirteen’, which is contrary to the prior one, minus the eventual pistons 16″.
A pressured lubricating system will feed the lubricate oil into the closed screw-nut system via particular pipeline, and form an oil display between each touching parts to reduce the elements friction when press works. A plurality of pinions engaging within the said toothed rim are each pushed 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. three,359,608, issued to the current inventor, discloses a friction and screw press for the manufacture of ceramic articles. In keeping with the information show: data disparity, as a result of the double-disc friction press operation will exist when stealing hammer, lacking hammer phenomenon, the output might be floater than the CNC electrical screw press, however in line with the provisions of the corporate to suppress the hammer merchandise, Two kinds of pressure brick gear manufacturing are comparable. Furthermore, it’s attainable to manage the movement of the flywheel 7″ and screw 7′ by operating a hydraulic motor 7, having a relatively lowered dimension, put in on the beam 8 to move the screw 7 through a detachably coupled system which is hydraulically interconnected to pistons 9, 9′. Line 41 illustrates the return of the screw, which must be thrown in an up motion with a power of less value than that provided for the elastic return of the structure of the pressing machine. The stress exerted by the screw 7′ on the fabric may be predetermined in a precise manner, with the potential of utilizing restricted torque generators for the stroke of the flywheel, resembling hydraulic motors, electrical motors or friction motors with restricted torque comparatively to the motor used as much as this moment. In the course of the acceleration phases for the downward movement and the upward movement of the spindle 9 the electrical motor 28 operates with approximately fixed power and fixed rotational velocity which ensures a high degree of electrical effectivity of the motor 28. The constant motor energy is transformed and totally utilized by the oil pump 27 operating as a torque converter. Said circuit further comprising control means for controlling the pressure of the hydraulic fluid fed to mentioned motor means and a plurality of stress levels, one of mentioned levels being controllable as braking pressure for mentioned flywheel, and a refill pump means for returning leaked hydraulic fluid to mentioned circuit.
Line 43 signifies 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 movement achieved by identified command circuits. SD10-315 was the primary set Refractory Electric Program-managed Screw Press for Refractory business 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 strains 31 to the axial piston motor 26 are quick-circuited, because the magnetically controlled four-manner valve forty one is moved from its rest place (as shown in FIG. This Friction Screw Press Down Stroke has been developed from greatest 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 check 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 can be hydraulically linked to pistons 13, 13′ as proven in FIGS. The torlence of controlling vitality of Electric Screw Press is zero.2%, and the torlence of impact energy is only one%. The small quantities of oil operating off from the pressure-limiting valves 42 and forty three and the 4-means valve 41 in the course of the reversing and likewise as leaked oil are fed back again into the closed circuit by a pump 45 pushed by a motor 44. A spring-centered, strain-managed three-way valve 46 is supplied to be able to make sure the feed stress required at the pump 27 and controlled by the strain-limiting valve forty seven. The three-method valve 46 is actuated in such a manner that the respective low-stress aspect of the closed circuit is connected to the stress-limiting valve forty seven, the feed pressure being maintained by the pump 45. 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 cleaning by sedimentation to part 32c of the tank 32, is fed through filters 50 and coolers 51 by a pump forty nine driven by an electrical 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 volume of oil at excessive pressure could also be used. The electrical screw press is driven by permanent magnet synchronous servo motor,and encompass mechanical pats such as framework, flywheel, screw nut, the slider, lubricating mechanism, braking mechanism and electrical components akin to servo motor, electric management cupboard, operating button station.