Double-acting hydraulic press is also called double-actingTensile hydraulic pressDouble-acting sheet stretching hydraulic press, mainly used for sheet stretching, bending, forming and other processes, can also be used for plastic pressing, cold extrusion bending, forming correction and press-fitting work. According to the plate thickness, plate width, select the appropriate tonnage of the machine, commonly used 500 tons, 1000 tons, 2000 tons, 3000 tons and so on. In this paper, this double-acting sheet stretching hydraulic press has a tonnage of 3000T, which is specially used for sheet stretching forming. The equipment has low energy consumption, high efficiency and novel style. It is equipped with safety protection device, automatic counting function and two-stage speed control of movable beam: no-load fast speed, slow working speed, drawing and stretching. The main cylinder and blank pressing cylinder have lower limit protection, and the setting of upper and lower limit stroke positions is simple, convenient and fast.
When designing the 3000-ton double-acting thin plate stretching hydraulic press manufacturer, its Hengling is more than three beams.four-column hydraulic pressThere is an extra cross beam, also called a side hold-down beam, which presses the product through the side hold-down beam, and the master cylinder drives the mold to stretch the formed product, so the equipment is also called a 3000-ton four-beam four-column stretching hydraulic press. The 3000-ton double-acting sheet stretching hydraulic press is regarded as a special machine, specializing in large-scale stretching products.
The main structural feature of the 3000-ton double-acting thin plate stretching hydraulic press is that there are two movable beams inside and outside, the stretching moving beam is installed inside, and the pressing edge moving beam is installed outside. During double-action stretching, the stretching moving beam and the edge holder moving beam can descend quickly together, and when approaching the workpiece, it will descend slowly. When the edge holder moving beam presses the circumference of the workpiece, the edge holder moving beam will not descend but become a pressure holding state. At this time, the stretching beam continues to stretch downward. After the stretching process is completed, the stretching moving beam can realize pressure holding delay, pressure relief and fast return, and the pressing edge moving beam can also relieve pressure and fast return accordingly, and then the hydraulic pad and ejector rod will push out the workpiece. The 3000-ton double-action thin plate stretching hydraulic press can also connect the stretching and blank-pressing moving beams into one body through positioning pins or pull rods to realize single action. At this time, the pressing force will make the sum of the two.
Operation mode:
1. The operation modes of the 3000-ton double-acting sheet stretching hydraulic press are: adjustment, manual and semi-automatic. Each operation mode can be divided into two working modes: constant pressure and fixed range, which are selected by the switch on the operation panel. The holding time can be preset in the range of 0~999 seconds.
1.1, adjustment: press the corresponding function button, that is, there is a corresponding action, raise the hand to stop, mainly used for equipment adjustment and inspection.
1.2. Manual: Press the corresponding function button, that is, complete an action accordingly, raise the hand to continue to the end, but do not send a message for the next action.
1.3. Semi-automatic: Press the pressing button to automatically complete a specified action cycle.
2. Process action of 3000-ton double-acting thin plate stretching hydraulic press: no ejection and ejection. The selection is made by a changeover switch on the operation panel. When it is used as an ejection process, it has an ejection delay function, and the delay time can be preset and adjusted.
2.1. No ejection: Slider quick drop & rarr; Slider slow pressure drop & rarr; Sliding fast pressure delay and pressure relief & rarr; Slider return.
2.2. Erect: slide block quick drop & rarr; slide block slow pressure drop & rarr; slide fast pressure delay and pressure relief & rarr; slide block return & rarr; ejection cylinder ejection & rarr; ejection cylinder retreat.
The 3000-ton double-acting sheet stretching hydraulic press can also be equipped with a pressing cylinder, which can be used as a buffer device, and can also be used for blanking and punching. The working pressure of each cavity can be adjusted separately under the pressure set by the system. In order to ensure the stretching and pressing quality, a pressing cylinder pressure maintaining system is added. ShandongZhongyou Heavy IndustryThe tonnage of the double-acting thin plate stretching hydraulic press can be customized from tens of tons to hundreds of tons and thousands of tons. Before selecting the tonnage of the hydraulic press, the tonnage required for the product should be calculated in detail. The selection of the tonnage is very important because the cost of the machine is high, and the selection of the stretched product is not in place, if you have done this product before, you have experience or have done similar products, you can directly order the machine. If you really don't know how to choose tonnage, you can send us the product data or mold data. The company's technology is accounting and recommends you a double-acting sheet stretching hydraulic press with appropriate tonnage.