The essential guide of Hydraulic press machine
Hydraulic track press Basic structure
Hydraulic track press Drive System
Hydraulic track press,The drive system of hydraulic press mainly has two types: pump direct drive and pump-accumulator drive. Pump direct drive The pump of this drive system provides high-pressure working fluid to the hydraulic cylinder, the distribution valve is used to change the direction of the liquid supply, and the overflow valve is used to adjust the system’s limited pressure, and at the same time plays a role of safety overflow. This kind of drive system has few links and simple structure. The pressure can be automatically increased or decreased according to the required working force, reducing electric energy consumption, but the capacity of the pump and its driving motor must be determined by the large working force and high working speed of the hydraulic machine. This type of drive system is mostly used in small and medium hydraulic presses, but also a large (such as 120,000 kN) free forging hydraulic press directly driven by a pump.
Pump-accumulator drive There is one or a group of accumulators in this drive system. When the high-pressure working fluid supplied by the pump has a surplus, it is stored by the accumulator; when the supply is insufficient, it is supplemented by the accumulator. With this system, the capacity of the pump and the motor can be selected according to the average consumption of the high-pressure working fluid, but because the pressure of the working fluid is constant, the electric energy consumption is large, and the system has many links and the structure is more complicated. This kind of drive system is mostly used for large hydraulic presses, or a set of drive system drives several hydraulic presses.
Structure type
According to the direction of the force, there are two types of hydraulic presses: vertical and horizontal. Most hydraulic presses are vertical, and hydraulic presses for extrusion are mostly horizontal. According to the structure type, the hydraulic press has two-column, four-column,eight-column, welded frame and multi-layer steel belt winding frame, etc., and medium and small vertical hydraulic presses also use C-frame type. The C-frame hydraulic press is open on three sides, which is easy to operate, but has poor rigidity. The welding frame hydraulic press used for stamping has good rigidity, open front and rear, but closed left and right. In the vertical four-column free forging hydraulic press with upper transmission, the oil cylinder is fixed in the upper beam, the plunger is rigidly connected with the movable beam, and the movable beam is guided by the column and moves up and down under the pressure of the working fluid. There is a workbench that can move back and forth on the beam. The upper anvil and the lower anvil are respectively installed under the movable beam and on the work surface. The working force is borne by the frame composed of upper and lower beams and columns. Large and medium free forging hydraulic presses driven by pump-accumulators often use three working cylinders to obtain three levels of working force. A balance cylinder and a return cylinder that exert upward force are also arranged outside the working cylinder.
Main classification
Hydraulic track press,According to the structural form, it is mainly divided into: four-column type, single-column type (C type), horizontal type, vertical frame, hydraulic press, etc. is mainly divided into metal forming, bending, stretching, punching, powder (metal, non-metal) forming, press fitting, extrusion, etc. according to the purpose.
Hot Forging Hydraulic Press
Hydraulic track press,Large hydraulic forging press is a forging equipment that can complete various free forging processes, and is one of the widely used equipment in the forging industry. There are currently 800T, 1600T, 2000T, 2500T, 3150T, 4000T, 5000T and other series of hydraulic forging presses.
Four-column hydraulic press
This hydraulic press is suitable for the pressing process of plastic materials. Such as powder product molding, plastic product molding, cold (hot) extrusion metal molding, sheet stretching, and horizontal pressing, bending pressing, turning through, correction and other processes.
Four-column hydraulic press can be divided into four-column two-beam hydraulic press, four-column three-beam hydraulic press, four-column four-beam hydraulic press, etc.
Single arm hydraulic press (single column hydraulic press)
The working range can be expanded, the three-sided space can be used, the stroke of the hydraulic cylinder can be lengthened (optional), and the working pressure can be preset by 260mm-800mm. The hydraulic system heat dissipation device.
Gantry hydraulic press
The machine parts can be assembled, disassembled, straightened, calendered, stretched, bent, punched, etc., realizing one machine with multiple functions. The worktable of the machine can move up and down, and the size has expanded the opening and closing height of the machine, making it more convenient to use.
Double column hydraulic press
This series of products are suitable for pressing, bending and shaping, embossing, flanging, punching and shallow drawing of small parts of various parts; forming of metal powder products and other processing techniques. It adopts electric control, is equipped with inching and semi-automatic circulation, can hold pressure and delay time, and has good sliding block guidance, convenient operation, easy maintenance, economical and durable. According to the needs of users, functions such as thermal instrument, ejector cylinder, stroke digital display, and counting can be added.
