By setting the press energy, the slide is accelerated to shifting downward. As the name suggests, this sort of press uses a mechanical screw to translate rotational motion into vertical. Basically, it is a variation of the former cored forging tools with only two instructions and it is rigidity is enhanced to secure giant pushing energy.
In many presses, circuits present for a compensation control or sequential control, e.g. rapid advance automatic press machine, followed by sequences with two or extra urgent speeds. It can be applied to drive each asynchronous and synchronous motor of screw press machine. Mechanical presses due to this fact develop consistent forging results, supply excessive productiveness and accuracy, and don’t require as high a level of operator talent as do different kinds of forging machines.
The two axial piston motors 26o and 26u related to a respective one of the pinions 23 are each fed by an oil pump 27 which in flip is pushed by a respective electrical motor 28 in each case, the bearing block 24 of each pinion 23 simultaneously supporting the axial piston motors 26o and 26u, the oil pump 27 and the electrical motor 28, which are related to this pinion 23. Each oil pump 27 might be regulated in terms of its feed pressure and its feed quantity and is reversible with respect to its feed direction.
A special equipment (known as cored tools or Sub-press) is installed on bed and the gadget employs technique of hole forming pin(s) (1~four every) diving horizontal direction to the facet floor of material after the slide goes down and each upper and decrease instruments clamp materials.
Shortly earlier than the impression of the upper half of the forging die, secured to the slide 7 upon the forging work-piece mendacity within the lower half of the forging die, the traces 31 to the axial piston motor 26 are quick-circuited, because the magnetically managed 4-method valve 41 is moved from its relaxation place (as proven in FIG.
When the overflowing oil flows onto the oil filtering barrel by the oil tray, Shandong Chief Equipment Co.,ltd. Fish and orange peel dewatering usually present maximum yield when dewatered inside a press of the interrupted flight design and with the addition of steam begin injected into the fabric.
Presses ship power extra slowly than do hammers. The invention, however, just isn’t restricted to these axial piston machines, but appropriate oil pumps and oil motors of different design may also be used. The principle advantage of screw presses over offset or crank-sort mechanical presses is in the remaining thickness management when the dies impact one another.
The electric management system takes PLC as main controller, enhancing the operating reliability of the entire press; The HMI help the operator to set parameters of power and vitality, which might additionally indicate the fault the press. All of the technical indicators and efficiency of the EPC-D electrical screw press produced by Qingdao Wantai Machine Device Technology Co. Ltd.
2. Idiot-fashion operation, no need of professional press machine operator. Twin screw presses feature two overlapping compression screws. The photograph exhibits excellent function application of the screw press on scorching pressing of Magnesium thin sheet to perform backward extrusion and boss forming.