Manhart How to control the shear angle when the punching and shearing machine is shearing straight steel?

When the punching and shearing machine is shearing straight steel, the control of the shear angle is crucial because it directly affects the shearing quality and accuracy. The following are the detailed steps to control the shear angle:
1. **Understand the definition of shear angle**:
– The shear angle refers to the angle between the upper and lower blades of the shearing machine, which is usually controlled between 0.5 degrees and 4 degrees, depending on the model and shearing requirements of the punching and shearing machine.
2. **Preparation phase**:
– Make sure that the punching and shearing machine is in normal working condition, the power supply is stable and the safety protection measures are intact.
– Prepare the straight steel to be sheared, and adjust the shearing length and position as needed.
3. **Steps to adjust the shear angle**:
– Turn on the power of the punching and shearing machine and start the hydraulic system.
– If the punching and shearing machine has a shearing angle adjustment function, the angle can be adjusted directly through the button or knob on the control panel.
– On some punching and shearing machines, it may be necessary to open the rear cover of the shearing machine to directly access the adjustment screw.
– Use the adjustment screw (if necessary) to adjust the angle of the active blade until the predetermined shearing angle is reached.
– Another adjustment method is to change the shearing angle by adjusting the height of the shearing machine table. This can be achieved by operating the table adjustment screw.
– For punching and shearing machines without direct angle adjustment function, the trial cutting method can be used to indirectly adjust the shearing angle.
– Place a small section of straight steel on the punching and shearing machine for trial cutting.
– Observe the cut quality of the straight steel after shearing. If the cut is not flat or deviates, you need to adjust the position of the blade or table.
– Repeat the process of trial cutting and adjustment until you get a satisfactory shearing angle and cut quality.
4. **Testing and Verification**:
– After completing the shearing angle adjustment, use a complete straight steel for test shearing.
– Carefully observe the cut quality to ensure that the cut is flat, without deviation or burrs.
– If any problems are found, readjust the shearing angle and test it.
5. **Precautions**:
– Before adjusting the shearing angle, always turn off the power of the punching and shearing machine to ensure safety.
– Use appropriate tools for adjustment to avoid damage to equipment or personal injury.
– If you are not familiar with the adjustment method of the punching and shearing machine or encounter difficulties, it is recommended to seek help from professionals.
6. **Record and monitor**:
– Record the specific values ​​of each adjustment of the shearing angle and the corresponding cut quality results.
– By regularly monitoring and analyzing these data, continuously optimize the shearing angle setting to improve production efficiency and product quality.
In short, by accurately adjusting and controlling the shearing angle, it can ensure that the punching and shearing machine obtains high-quality cuts and stable processing effects when shearing straight steel.