The invention pertains to a screw press

The invention pertains to a screw press having a flywheel rotationally connected to the spindle by means of a friction screw type press coupling and a spindle displaceable axially in a nut mounted in the higher cross member of the press frame, wherein the flywheel has exterior toothing to a width corresponding to the utmost press stroke plus the width of the driving pinion, a plurality of pinions participating in the stated toothed rim are each 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 upper cross member of the press frame. three, traces 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′ against 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 three and the pressure of the pistons 5 and 5′. This new construction is predicated on the refractory forming characters, which is our firm developed based on SD20 Collection Electrical Screw Press for the refractory industry. Shortly earlier than the tip of the downward stroke of the spindle 9 the rotational pace of the pump 27 and therefore the rotational velocity of the flywheel 17 and the spindle 9 are decreased to zero throughout the remainder of the stroke of the spindle 9. When the rotational speed is decreased the four-manner valve forty one is displaced from the rest place to the best and the road 42a is related to a second pressure-limiting valve forty three. The stress which could be regulated by the pressure-limiting valve 43 limits, by the use of the pressure-limiting valve forty two, the pressure current within the pipeline 31 to the braking strain required for braking the flywheel 17. Relating to the present pressing machines, the number of strokes achieved between the washing phases of the moulds, is from 2 to 3 times as great. For the reason that electric motors are twice accelerated from relaxation to the required rotational velocity and braked once more throughout every working cycle, correspondingly high present warmth 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 might be observed that the required power for the primary pressing operation, with predetermined masses of ceramic, may be quite low, roughly 10-12,000 kg., against the four hundred,000 Kg of the second pressing operations, which is sort of different from the current urgent machines, which require about 50 to one hundred fifty tons for the primary pressing step.

Jinan Linteng Forging Machinery Co., Ltd. Degree 42 is the one reached after the material has suffered the pressure of the screw and represents the final disposition of the pressed mass. EPC-D numerical control electric screw press adopt switched reluctance motor which is probably the most superior and most suitable for the die forging business The motor with low velocity and huge beginning torque apply to the constructive and destructive work.Subsequently, the lifetime of the motor is prolonged and saves power.Digital management system use PLC management with man-machine interface integration whereas realizing the automation of forging production with robot or other automation gear connectionThe pinion are made of special metal, which solved the vulnerability downside of the bakelite gear with out damaging gearwheel and extended the pinion life greater than 5 occasions than bakelite gear;The screw and the flywheel undertake the spline connection, which improves the workpiece interchangeability. Enterprise Profile : Main manufacturer of Surface Grinder, Plano Miller, Planner Machine, Grinding and Milling Machinery, Machine Instruments & Accessories and Friction Screw Press used for Refractories. Depending upon the tooling employed on a press, it meets different wants of Non-Ferrous, Steel, Brass, Aluminium stamping’s, Scorching Forgings and piercing operations. Friction screw press can be utilized in die forging, extruding, leading edge, bending and correcting for nonferrous and ferrous metallic and pressing and forming work of refractory material as well. Furthermore, the regulation of the completely different phases amongst them, which is totally different from what would occur with the current machines, where the signalization of the first and second urgent steps are related one to the opposite. The purpose 102″ is the arrival level after the first cycle, with the conventional pressing machine. Thus, the whole pressure 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 well-liked embodiment, single performing hydraulic jacks 5, 5′, each having chamber filled with oil at lowered pressure in the course of the reducing motion of the movable beam 3 and energized with an sufficient high strain, for performing the primary comparting step. Business Profile : We are Manufacturers and suppliers of; Forging Press Machine & Friction Screw Presses & Machine Instruments, Down Stroke Machine and Up Stroke Machine.

A compelled lubricating system will feed the lubricate oil into the closed screw-nut system by special pipeline, and kind an oil display between each touching components to cut back the components friction when press works. A plurality of pinions participating within the stated 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 along with the pinions are disposed on a platform surrounding the upper cross member of the press frame. No. three,359,608, issued to the present inventor, discloses a friction and screw press for the manufacture of ceramic articles. According to the data show: information disparity, as a result of the double-disc friction press operation will exist when stealing hammer, lacking hammer phenomenon, the output will probably be floater than the CNC electric screw press, however based on the provisions of the company to suppress the hammer merchandise, Two sorts of stress brick gear manufacturing are comparable. Moreover, it’s potential to control the motion of the flywheel 7″ and screw 7′ by operating a hydraulic motor 7, having a comparatively reduced dimension, put in on the beam eight to maneuver the screw 7 by means of a detachably coupled system which is hydraulically interconnected to pistons 9, 9′. Line forty one illustrates the return of the screw, which needs to be thrown in an up movement with a power of much less worth than that equipped for the elastic return of the construction of the urgent machine. The strain exerted by the screw 7′ on the material may be predetermined in a precise method, with the potential of using restricted torque turbines for the stroke of the flywheel, similar to hydraulic motors, electric motors or friction motors with restricted torque relatively 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 electric motor 28 operates with roughly fixed energy and fixed rotational pace which ensures a high degree of electrical effectivity of the motor 28. The constant motor power is converted and totally utilized by the oil pump 27 operating as a torque converter. Said circuit further comprising control means for controlling the strain of the hydraulic fluid fed to said motor means and a plurality of strain levels, one of stated phases being controllable as braking stress for stated flywheel, and a refill pump means for returning leaked hydraulic fluid to said circuit.

With the intention to supply the oil-hydraulic motors, an oil station is required which comprises an electric motor, oil pump, high-stress accumulator and management units as well as units for filtering and cooling the oil, and which along with the press is disposed on the workplace ground, in a basement or on a scaffold and is related to the oil-hydraulic motors by way of flexible excessive-strain ducts which compensate for the movements of the press. All pistons function at one hundred atm, roughly, as working strain. 9, the step represented by line 30 represents the fast reducing down stroke path of the beam 3 as a consequence of its own 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 satisfy the mass to be pressed at filling (stage 32) with low speed, in an effort 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 brand new product which integrated screw press advangtage of south china and north structure adopts the split body and solves the problem of the rack fracture ,which has the traits of simple and cheap gear structure, stunning appearance, easy operation, maintenance and method to complete the work of workstation is that the motor drives pinion and then pinion drives flywheel rotating with power releasing for the requirements of the equipment is principally used within the precision forging of ferrous metals, nonferrous metals, refractory materials and other industries. According to the invention each 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 supply route. Enterprise Profile : We’re Producers and suppliers of Energy Press Piller Type, Energy Press Two Station, Power Press two Gear, C Sort Power Press, Friction Screw Presses, Down Stroke, Forging Press Up Stroke Steel Body, Pneumatic Clutch Press, Billet Shearing Machine, Heavy Obligation Double Column Planner, Plano Miller, Plano Miller Cum Planner, Cone Pulley and many types of Industrial Machines. The stress utilized at this moment is determined and given by the weight of the beam 3 plus the motion of the pistons 5 and 5′ (much less the force of the pistons sixteen” of assist of the mould in case of use of the mirror kind mould).

Business Profile : Jinan Linteng Forging Machinery Co., Ltd. Get data of suppliers, producers, exporters, merchants of Friction Screw Press for purchasing in India. Certainly, within the first compacting step, the flywheel had to be thrown at excessive speed to cut back the time of its vertical stroke and likewise, instantly braked before the impact to scale back its pressure. The invention, however, just isn’t restricted to those axial piston machines, however suitable oil pumps and oil motors of different design may also be used. Although the benefit, of diminished cost and better reliability are achieved at the cost of a better electrical motor drive capacity, because the substantial load compensation made possible by the hydraulic accumulator within the case of the earlier type of drive with a central oil provide is absent, the electrical disadvantages (in particular high load peaks, extra installations for limiting them, idle energy of the motors) and the structural drawback of the spindle bearing in the case of a purely electrical drive are avoided, and with respect to the operational reliability in the case of the oil-hydraulic drive any disadvantage as a result of provision of additional hydraulic elements (oil pumps and control means for every oil motor or pair of oil motors associated with a pinion) is greater than compensated by the absence of the excessive-pressure oil ducts, specifically of the versatile portions compensating the movements of the press. Mentioned pressostat 19, when energized, determines the top of the HP (high pressure) step, deenergizing the valves 20 and 17. Our extremely precision automated press machine has the traits of easy structure, adjustable strain, excessive diploma of automation and productiveness. In abstract the operation of the creative press makes use of first piston means 9, 9′ to move the beam upwardly or retract the beam from the bottom, second piston means 5, 5′ for transferring the beam downwardly towards the base into its operating place, and third piston means 2, 2′ for exerting an additional downward drive on the beam to move the beam toward the bottom and compress the ceramic powder to launch air therefrom. Our press can save about 50% energy than friction press, so it could possibly cut down giant price.

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