Manhart Working principle of downward bending machine

**Detailed explanation of the working principle of the downward bending machine**
1、 Introduction
Downward bending machine is a common processing equipment in modern manufacturing, widely used for bending metal sheets. It achieves precise bending of sheet metal through a series of precise mechanical actions and control systems. This article will provide a detailed introduction to the working principle of the downward bending machine, including material placement, lower mold pushing, upper bending, angle shape, synchronization system, hydraulic transmission, material blocking mechanism, and worktable operation.
2、 Working principle of downward bending machine
1. Material placement
During the operation of the downward bending machine, the first step is to place the metal sheet to be processed on the workbench of the equipment. The workbench is usually equipped with a scale and positioning device to accurately control the placement position and angle of the board. The operator places the board in the correct position according to the processing requirements and fixes it to prevent it from sliding during the processing.
2. Lower mold pushing
After the board is placed, the lower mold begins to move downwards. The lower mold is one of the main components that drives the bending of the sheet metal, and its motion trajectory and speed are precisely controlled by the control system. When the lower mold moves downwards, it comes into contact with the sheet and applies a certain pressure, causing the sheet to begin to deform.
3. Upper bending
When the lower mold pushes the board downwards, the upper curved parts begin to work. These curved components are typically composed of a series of adjustable blades or molds that can be adjusted according to processing requirements. When the board comes into contact with the bent part, it begins to bend according to the predetermined shape due to the pushing force of the lower mold and the squeezing effect of the bent part.
4. Angular shape
The bending angle and shape of the bending machine are jointly determined by the control system and the bending components. The control system can calculate the required bending force and path based on input parameters such as bending angle, radius, etc., and control the movement of the bending parts through actuators such as motors and hydraulic cylinders. The bending parts are precisely adjusted according to the instructions of the control system to ensure that the sheet can be bent according to the predetermined angle and shape.
5. Synchronization system
Downward bending machines are usually equipped with a synchronization system to ensure coordinated movement between the upper and lower molds. The synchronization system monitors the position and speed of the upper and lower molds in real time through sensors and controllers, and adjusts them as needed. This helps ensure that the board receives uniform force during the bending process, thereby avoiding defects such as deformation or cracks.
6. Hydraulic transmission
Hydraulic transmission is one of the common power transmission methods in downward bending machines. Hydraulic transmission converts the pressure of liquid (such as hydraulic oil) into mechanical force through hydraulic cylinders, thereby driving the movement of the upper and lower molds. Hydraulic transmission has the advantages of large transmission torque, fast response speed, and high precision, and is suitable for precise bending processing of sheet metal.
7. Material blocking mechanism
The blocking mechanism is a device used in a downward bending machine to fix and support the sheet metal. During the bending process, the material blocking mechanism can prevent the sheet from sliding or moving, thereby ensuring machining accuracy and stability. The material blocking mechanism usually consists of a series of adjustable blocking blocks and support frames, which can be adjusted according to the size and shape of the board.
8. Workbench operation
The workbench is one of the main operating areas of the downward bending machine. On the workbench, operators can place boards, adjust the blocking mechanism, observe the processing process, etc. Workbenches are usually equipped with control panels and display screens for operators to monitor and control the operating status of the bending machine in real time.
3、 Conclusion
The downward bending machine achieves precise bending of metal sheets through a series of precise mechanical actions and control systems. This article provides a detailed introduction to the working principle of the downward bending machine, including material placement, lower mold pushing, upper bending, angle shape, synchronization system, hydraulic transmission, material blocking mechanism, and worktable operation. The synergistic effect of these aspects ensures the efficient, stable, and precise operation of the bending machine, providing strong support for the development of modern manufacturing industry.