Small Sheet Metal Press Brake- Manufacturers Factory Suppliers From China

The different shapes of the press brake can be used to bend various shapes of workpieces. If equipped with corresponding process equipment, press brake can also be used for punching, punching, corrugation, and shallow stretching.

• What are the advantages and disadvantages of press brake?

• What are the functions of press brake?

• What are the uses of press brake?

What are the advantages and disadvantages of press brake?

The operation of press brake is so convenient that the working process is easy to master.

Press brakes are extremely intelligent that incorporates a panel allowing various bending data to be entered, stored and displayed in sequence. The display allows the user to troubleshoot error messages and safety risks.

Machine tool as one of the core components of the press brake is so solid that it is not easily deformed. That’s because the press brake has undergone a rigorous process to improve the quality.

When the press brake is working, the oil cylinders at both ends of the press brake are placed on the slider, which directly drives the sliding work.

Press brake is cheap, which is highly cost effective, adapted to meet different needs.

There are still drawbacks to the use of press brake. It is common that many manufacturers encounter defects phenomenon because the small radius bending process determines the thinning of the outer wall of the arc. It is recommended to use press brake with boosting devices to offset some resistance of the bending and improve the stress distribution.

What are the functions of press brake?

Press brake is a kind of bending equipment that can also do jack. Press brakes are mainly used in the application of electric power construction, public railway construction, bridges, ships and other aspects.

Press brake is a machine that is used for bending sheet and plate material. The most common metal used is the sheet metal. Providers in this segment must have a great team of professionals so that they can offer you a broad assortment of press brake.

What are the uses of press brake?

Press brake and shearing machines are common sheet metal cutting equipment.

Press brake is widely used in industrial sectors such as electrical appliances, electronics, containers, metal structures, instruments, household hardware, building materials, etc.

In the decoration industry, press brakes are widely used, together with shearing machines, to complete the production of stainless-steel plates, doors and windows, and the decoration of some special places.

In the electrical and power industry, the shearing machine cuts the plate into different sizes and then process again by the press brake. Computer cases, electrical cabinets, refrigerators and air-conditioning shells are all made in this way.

In the kitchen and catering industry, stainless-steel kitchen utensils of various varieties and specifications are then processed in secondary processing, such as welding, bending.

In the wind power industry, press brakes are used to bend wind power poles, road light poles, communication tower poles, traffic light poles, traffic signal poles, and monitoring poles.

In the automobile and ship industry, large-scale press brakes are generally adopted to complete the work of the plate.

In the aerospace industry, high precision is required by high-precision press brakes, which is accurate and efficient.

Learn more about press brake can know the advantages and disadvantages of press brake and the uses of press brake. LZK CNC Machine Tool(Anhui) Manufacturing Co., Ltd. is equipped with many professors in manufacturing and offering solutions.

The CNC press brake is primarily a machine tool that is utilized for bending a metal sheet or plate into a shape determined by its die set. CNC press brake plays a very important role in sheet metal manufacturing.

• How to perform CNC press brake?

• How to adjust the gap between blades of CNC press brake?

• What should be considered when using CNC press brake?

How to perform CNC press brake?

Close the rear protective door of the CNC press brake. Turn on the power. Turn on the switch on the control panel of CNC press brake. Then, start the oil pump. The CNC press brake does not operate at this time. Release all emergency stop switches.

Adjust stroke. Pay attention to adjusting the stroke when using it. You must test it before bending. There must be a gap of plate thickness when its upper die descends to the bottom. Otherwise, it will cause damage to the CNC press brake. The adjustment of the stroke also has electric quick adjustment.

For the selection of bending notches for CNC press brake, a notch with a width of 8 times the thickness of the plate should generally be selected.

Backgauge adjustment generally has electric quick adjustment and manual fine adjustment, which is the same as the shearing machine.

Press down the blue "reset" button on the pedal and the "reset rearguard" button on the electric box, ensuring that the two blue reset indicator lights are off.

Turn the function forwarding switch to the "auto" position and press the motor start button after the controller self-test is over.

The CNC press brake finds the reference point and loads the corresponding bending program. Ensure that the mold installed in the CNC press brake is consistent with the programmed mold. Ensure that the sheet material is consistent with the programming page.

How to adjust the gap between blades of CNC press brake?

Remove the lower blade of CNC press brake and clean it piece by piece. Select one side to install tightly. Check the straightness of the blade in the horizontal and vertical directions.

Remove the upper blade of CNC press brake and clean it piece by piece. Then, the operation is same with that of the lower blade.

The upper blade is fixed. We adjust the blade gap by adjusting the lower blade.

The left and right screws of the lower blade increase the clearance. Loosen the four bolts on the table of the lower blade.

Manually turn the upper blade down to the proper position. The operator adjusts at the blanking area of the CNC press brake.

Use a feeler gauge to roughly adjust to 0.5mm from the unoccupied part of the upper and lower blades.

Manually turn the blade to the middle position and adjust it to 0.5mm.

Manually turn the blade up to the right position where the upper and lower blades are not disengaged. The middle position is roughly adjusted to 0.5mm.

Manually turn the upper blade to the proper position and start fine adjustment.

What should be considered when using CNC press brake?

Before working, you must check the surrounding area of CNC press brake for any objects that may cause harm to it. Make sure the surroundings are clean, especially backgauge. Check the position of the oil mark in the oil tank. Check the hydraulic part for leaks.

The CNC press brake should be operated by professors. The operators must wear the corresponding labor protection supplies.

After turning on the power switch of the CNC press brake, do not start the oil pump immediately. Start the oil pump only after the computer screen displays normal.

After starting the CNC press brake, run it for 2 to 3 minutes without anything. Run the slide block at full stroke for 2 to 3 times. Check the motor and CNC press brake for noise. If the temperature is low, the oil tank and oil circuit must be preheated.

Learn more about CNC press brake can know how to perform CNC press brake and the warnings of CNC press brake. LZK CNC Machine Tool(Anhui) Manufacturing Co., Ltd. can help you learn more about the CNC machines.

An efficient press brake is fundamental to avoiding damages and detecting failures. Keeping press brake clean and tidy is simple but important. It should be done the daily, weekly, monthly, and yearly.

• Why does press brake leak oil?

• What should you do for oil of press brake?

• What is the role of oil of press brake?

Why does press brake leak oil?

The sealing ring is not suitable for the conditions of using press brake. The O-shaped rubber seals often used in press brake must be selected according to the operating conditions and working conditions. Under oil lubrication conditions, the hardness of the oil-resistant rubber O-ring seal can be low hardness when the oil pressure is less than 2.9MPa. When the oil pressure is 2.9 to 4.9MPa, medium hardness should be selected. When the oil pressure is 4.9 to 7.8MPa, select high hardness.

There is no design seal or unreasonable seal structure. The screw hole on the body of the press brake is designed as a through hole with no sealing measure. The press brake cover is not designed with a gasket. The clearance between the shaft and the body hole is too large. The interference between the sealing ring and the shaft does not meet the requirements. The design of sealing groove is unreasonable.

Oil leakage can be caused by casting defects and parts damage. The castings of the press brake have defects such as blisters, pores, cracks, and loose tissues. When the oil pipes and pipe joints of the press brake are made of plastic or oil-resistant rubber, the materials will age to become hard and brittle after long-term use. The moving parts will lose the sealing performance due to friction and wear. If the gap between the shaft and the shaft hole increases, it will also cause oil leakage.

What should you do for oil of press brake?

Before maintaining or cleaning, the upper mold should be aligned with the lower mold. Shut down until the work is completed. If you need to start press brake, select the manual mode to ensure safety.

Check the oil level of the oil tank every week, even after the hydraulic system is repaired. If the oil level is lower, add hydraulic oil. The oil should be changed after 2000 hours of operating new press brake. Afterwards, the oil should be changed after 4000 to 6000 hours of operating press brake. The oil tank should be cleaned every time before changing the oil. The oil temperature of the press brake should be between 35℃ and 60℃ that is not exceed 70℃. Otherwise, it will cause deterioration and damage of the oil quality and accessories.

The filter of press brake should be replaced or thoroughly cleaned every time if the oil is changed. If the press brake has filter abnormalities such as unclean oil, the filter should be replaced. The air filter on the fuel tank should be inspected and cleaned every 3 months and replace every year.

After using the new press brake for one month, check whether the bending of each oil pipe is deformed. After two months of use, all fittings should be tightened.

What is the role of oil of press brake?

The oil of the press brake plays the role of transmission, wear resistance, system lubrication, anti-corrosion, rust prevention, and cooling in the hydraulic system. It belongs to the industrial hydraulic system. The hydraulic oil itself is constantly changing in use. However, it is difficult to completely solve the problem of hydraulic oil pollution.

Serious oil pollution will directly affect the performance of the press brake. It will cause frequent failures of the brake system and shorten the lifespan of press brake.

The main reason is the particles in the dust. As far as hydraulic components are concerned, these solid particles entering the components will increase the wear of the sliding parts. In addition, it may block the orifice, the orifice in the hydraulic component, or the spool stuck, causing the hydraulic system to malfunction.

The mixing of water and air reduces the lubrication of hydraulic oil, accelerating the oxidation of hydraulic oil and producing cavitation corrosion.

Learn more about press brake can know the reasons for oil leakage of press brake and how to deal with oil of press brake. LZK CNC Machine Tool(Anhui) Manufacturing Co., Ltd. can offer you better experience whether in terms of products or delivery.

The shearing machine is an automatic processing equipment that precisely controls the size of the sheet metal processing, performs automatic cycle shearing processing of metal sheets, and transports to the next step by a feeding cart. The shearing machine is used on the production line to cut the sheet metal, collected by the feeder, and automatically load to the production line.

• How to choose an appropriate knife for shearing machine?

• Does shearing machine need to be lubricated?

• How to change the oil of shearing machine?

How to choose an appropriate knife for shearing machine?

The material performance of the blade of the shearing machine is the basic factor that affects the surface quality, cutting efficiency and lifespan. The performance of the tool depends mostly on the material, the geometric parameters, and whether the selection and design of the tool structure are reasonable.

There is the reference sense for the price of shearing machine blades You can first know the market prices of the raw materials used in the production of shear blades. Then, compare the quotations of shear blade manufacturers.

In the production of shears blades, it is worth noting heat treatment though each process is important. A qualified shearing machine blades must be quenched in the furnace at least twice to achieve the same hardness. The cutting edge is tough but not brittle, which has a long-lasting wear-resistant effect.

Generally, the parallelism of the shearing machine blades is 0.03mm and the thickness of the full length cannot exceed 0.03mm. You can use measuring tools to compare the errors of the two ends of a single piece. Then, measure the accuracy of the whole set of blades. Pay attention to see if there is no gap at the joint.

Does shearing machine need to be lubricated?

The shaft sleeve of shearing machine should be lubricated. Use a small amount of calcium-based grease oil gun. Shearing machine shears plates of different thicknesses, all need to adjust different gaps.

The cylinders of the shearing machine should have lubrication. Adopt medium amount of calcium-based grease oil gun. Shearing machine oil cylinder is the source of power, acting on the oil cylinder to drive the movement of the tool holder. It is necessary to be lubricated when the backgauge of shearing machine do back-and-forth adjustment.

The sliding nut of the backgauge of the shearing machine should be lubricated. Smear medium amount calcium-based grease. The backgauge motor drives the nut to complete the adjustment of the backgauge.

The upper and lower ends of the return cylinders of the shearing machine need lubricating. Make use of small amount of calcium-based grease oil gun. They are filled with pure nitrogen under pressure. It is the device to complete the return stroke after the shearing machine finishes cutting.

How to change the oil of shearing machine?

When the oil working time on the shearing machine reaches 2,000 hours, it needs to be replaced. The cycle for each subsequent replacement is 4,000 hours or two years.

To prevent the oil of the CNC shearing machine from infecting the environment, clean around the fuel tank. Then, remove the fuel tank cover and the oil inlet and outlet pipes.

The oil should be changed when the oil temperature is still hot and the slide block of the CNC shearing machine is at the top dead center.

Clean the oil inside the tank with clean cloth and transparent solvent. Replace with a new filter. Add new oil.

After changing the oil, start the deep well pump to circulate oil for about one hour before starting the CNC shearing machine.

Attention must be paid to the waste oil cleaned out in a unified and centralized treatment, instead of discharging directly into the natural environment to cause pollution.

Learn more something about shearing machine can know the importance of changing shearing machine oil and how to change. LZK CNC Machine Tool(Anhui) Manufacturing Co., Ltd. is good at manufacturing high-quality products, as well as offering the best solutions.

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