Shearchy Technology Machinery

Steel Hydraulic Shears asynchrony problems, there are 3 aspects: cylinder itself, oil pipeline and the return pipeline.

Hydraulic Shearing Machine Out of Sync Issue and Solutions

Hydraulic plate shear cylinder

In order to equalize the leakage in both cylinders:

On the one hand, we should ensure that the matching accuracy of the left right pistons is as consistent as possible with that of the cylinder.

The accuracy includes: dimensional accuracy, coaxially, roundness and other position accuracy.

On the other hand, the hydraulic circuit design of the two hydraulic cylinders should be the same as much as possible.

Intake pipeline

Make sure that the flow of the two check valves is equal:

First, try to position the movable frame at the geometric center of both cylinders

Secondly, manufacturing piston and piston rod. The mechanical damping between the piston rod and the end cover is similar to ensure that the they are similar when drop rapidly.

Oil return line

Ensure the flow is equal

Make the oil return resistance on the oil return pipeline similar. That is, the pipe diameter, pipe length, number and angle of elbow are basically the same.

Mechanical gear and rack drives for forced synchronization

In the actual production, with the increase of the number of uses, some typical faults are also very troublesome.

Unstable Causes Analysis of Hydraulic Shears

For example:

Piston Cylinder Itself

Oil Pipeline

3-Roll Plate Bending Machine correct use and proper maintenance can extend the using life of and reduce the cost of repairs.

Three Roller Plate Bending Machine Safety and Maintenance

3 Roller Plate Bending Rolls Safe handling

The operator should know clearly of rollingmachine structure, performance, controller operation and different work piece rolling process. In addition, strictly follow all safety matters.

Before starting or stopping steel rollers, all buttons of control system should be to the original position.

During operation, should check each lubrication point regularly. Make sure enough lubricant supply.

During 3-roll plate bending machine operation, if found irregular noise, shock, vibration or leakage, you should immediately stop and check.

Check each transmission structure and joints regularly. Keep no loosening and no damage.

It is not allowed without producing flat welds, without leveling the steel material rolled directly on the bending roll.

When inserted into the machinery, the steel sheet must be perpendicular to the roller centerline.

In the rolling process, the bottom roller and upper roller are not allowed operated at the same time.

Wuxi Shearchy invest in factories for hydraulic iron worker, hydraulic press Brake, swing beam shearing Machine, hydraulic guillotine shears, 3 or 4 roll plate bendingmachine... We specialized in dealing with sheet metal machine tools and accessories for many years. Our main markets are in Europe and North American, such as Germany, Italy, France, Spain, Belgium, Greece, USA, Canada, etc.

Steel Metal Rolling Machine Maintenance

The main points of sheet metal roller maintenance:

Steel sheet roll machine must work under normal operation and regular lubrication, the strict implementation of the lubrication system.

Formulate regular inspection and repair system.

All wearing parts appear excessive wear or lose their original properties should be replaced, if damaged parts need repairing.

Pay attention to the temperature of 3-roll plate bending machine each parts.

The electrical system should be properly grounded. Also, the electrical components should be regular maintenance, removal, timely replacement of damaged, failure of components.

SHEARCHY Plate Rolling Machine Lubrication Method

According to the rolling machine working condition, box-type lubrication and regular lubrication adopted.

Each slide guide surface lubricated by hand gun, grease once per shift.

Also, slide bearing between rollers lubricated by one-time.

Main drive gear speed reducer of bottom rollers and transfer-case adopt box-type lubrication.

Machinery Lubricant Selection

Each roller slide bearing, slide guide board adopted lithium-based grease.

Swing Beam Shear is a kind of hydraulic sheet metal cutting machine. Cost-effective is the most prominent advantage.

Swing Beam Shearing Machine Cost-effective Analysis

SHEARCHY high-quality swing hydraulic shear machine can meet the basic cutting needs of customers. At the same time, you will pay a reasonable price.

Advantages & Disadvantages of Swing Plate Shears

Compared with the high-end CNC guillotine shear, its defects are obvious. For demanding users, we recommend high-precision guillotine shears, hydraulic high-speed shear, and automatic front-feed shear.

What are the shortcomings? Why?

Because easycut swing beam hydraulic shearing tool holder is to do arc movement to cut. It is very difficult to make the arc cutter. Generally, when using, the manufacturer will make iron pad repair. Thus, the blades clearance is not very accurate. In addition, steel metal cutting precision is not good. And, the arc moving blade is sharp angle. So, it would be seriously damaged during daily use.

Where are the strengths?

From another point of view, swing beam shear price is relatively low. If the customer's purchase budget is low and the requirements for product processing accuracy are not high, the cost performance of the Shearchy easycut plate shears is very advantageous.

Although the hydraulic swingshear has some disadvantages, it also has the performance advantages that other shears do not have.

Detailed Introduction:

Overall strength of tool rest and main body is high. The return of accumulator cylinder and blade rest are stable and fast.

High strength and good rigidity: all steel welding structure of main engine, vibration stress relief.

Upper hydraulic pressure type: stable and reliable operation.

Blade gap uniformity is easy to adjust. The hydraulic swing plate shears have stepless adjustment function. The upper blade has two edges; the lower blade has four. The gap between the upper and lower blades can be adjusted manually, which is very convenient.

High safety: electric linkage lock and protective fence can effectively ensure the safety of operators.

The pressing plate of the swing beam shear is a hydraulic independent presser foot. Also, it has the plastic cushion foot. The pressing material is more stable and the noise is lower.

Back gauge has a digital display system: digital display of the number of cuts, convenient statistics.

What is Steel Metal Plate Shears oil road arrangement? How to optimize hydraulic oil circuit?

Hydraulic Plate Shear Machine Oil Circuit Structure

The oil circuit system of steel shearing machine mainly composed of oil block, at least four groups of cylinders, pressing block and tension spring.

The main oil circuit is set in the oil separation block.

One end of the main oil circuit connected with the oil supply system.

The oil distribution block also provided with a parallel oil distribution circuit arranged with the same number of oil cylinders.

Each group of oil cylinders vertically connected to the lower end of the oil separation block.

The cylinder block of each group of oil cylinders firmly connected with the oil dividing block.

Hydraulic Oil and Cylinder Working Principle

The upper end of the piston rod of each group of oil cylinders are opposite to oil distribution channel.

The lower end of each piston rod linked to a pressing block.

The material pressing block and the cylinder block of the oil cylinder connect with a tension spring.

The high-pressure oil enters into the oil separation block, then distributed to each cylinder.

The high pressure oil pushes the piston rod down, thus pushing the pressing block to press the plate.

During the return trip, the oil unloaded firstly, and the spring rebound starts to reset the pressing block.

How to improve utilization rate and prolong service life of steel metal plate shears?

First of all, we have to choose good hydraulic guillotine shear steel cutting blades and accessories

The blade of plate shearingmachine is the key part of metal cut. The cutting of hydraulic plate shear must depend on the gap and quality between the blades to cut the plates with different thickness.

Secondly, we should pay attention to adjust the wear parameters between the parts

In the long-term use process, we should notice the circular arc swing of hydraulic shear and the gap between the screw rods. In addition, automatic or manual component adjustments are necessary. The adjustment of the parameters, especially the parameters of CNC machine tool, can greatly improve the processing accuracy of hydraulic guillotine shear.

Finally, the maintenance of the power system is also very important for Shearchy guillotine shears

CNC Shear Machines is a kind of forging machine. Its main function is metal shearing industry. Its products are widely used in: light industry, aviation, ship, metallurgy, instrument, electrical appliances, stainless steel products, steel structure construction and decoration industry.

Hydraulic Guillotine Shears Fault Analysis

In general, the user will always panic when the cutting machine fails. As a matter of fact, as long as we know some detection methods of shearing machine fault, all will be fine.

Know the operation of shear’s hydraulic system

Including:

Whether the hydraulic system of the shearing machine works normally

If the hydraulic pump has abnormal phenomenon

Time and result of the hydraulic oil detection cleanliness

The cleaning and replacement of the filter element

Whether the hydraulic element has been adjusted before the failure

If the sealing element has been replaced

What abnormal phenomena have occurred in the hydraulic system of Cnc shear machines before and after the failure

What failures have occurred in the system in the past and how to exclude, etc.

All above need checking one by one.

Look at the actual working condition

Observe the system pressure, speed, oil, leakage, vibration and other problems.

Listen to the sound of plate shear

Such as: impact sound; pump noise and abnormal sound.

Judge whether the hydraulic system works normally.

Feel temperature, vibration, crawling and tightness of joints…

Determine whether the moving parts of the hydraulic system of the shearing machine work normally.

According to Hydraulic CNC Press Brakes manufacturer, when it comes to noise, it's a headache for users. So how can we solve the noise problem of hydraulic bending machines?

CNC Hydraulic Press Brake Machine Noise Problems and Solutions

Noise reduction of sound source

Improve the production process and select low noise hydraulic press brakes.

Promote the machining and assembly accuracy to reduce the noise caused by mechanical vibration and conflict.

For high-pressure and high-speed air flow, the pressure difference and flow rate should be reduced, or the shape of air flow nozzle should be changed.

Control on the way

The overall layout designed reasonably:

When arranging the plane design of plant conditions, the user shall keep the main noise source bendingmachines workshop or equipment away from the workshop, laboratory, office, etc. with quiet requirements.

Or concentrate the high noise metal plate bending equipment as much as possible to facilitate the operation.

Add barriers to prevent hydraulic press brake noise transmission.

Use the directivity of the sound source to control the noise.

Hydraulic Cnc press brakes protection of the recipient

Carry out personal protection for pressbrake workers, such as wearing earplugs, earmuffs, helmets and other anti noise articles.

Adopt workers rotation operation to shorten the working time of hydraulic cnc press brakes workers entering high noise environment.

Hydraulic Plate Shear Machine Oil Circuit Structure

The oil circuit system of steel shearing machine mainly composed of oil block, at least four groups of cylinders, pressing block and tension spring.

The main oil circuit is set in the oil separation block.

One end of the main oil circuit connected with the oil supply system.

The oil distribution block also provided with a parallel oil distribution circuit arranged with the same number of oil cylinders.

Each group of oil cylinders vertically connected to the lower end of the oil separation block.

In the process of CNC Press Brake Bending, the layout of bending process is an important factor that affects the efficiency of plate bending machine. The working procedure of common hydraulic bendingmachine is mainly prepared by hand. It’s low efficiency and high cost. Therefore, there is a bendingprocess planning algorithm based on differential evolution algorithm to improve the efficiency.

Algorithm and Realization of CNC Press Brake Bending Processing

Step 1: Research on machining types and key parameters

The calculation formula of key parameters, such as: bending force and spring back, the basis of selecting upper and lower bending dies.

And determine the criterion of bending priority.

Step 2: An interference collision detection algorithm

In the process of metal bend, establish the brake press coordinate system and each key point of bending.

Through the position relationship among several coordinate systems, obtain the position of bending key points in the machinery coordinate system. Compare with the dimensions of work piece and machine tools to determine whether there will be interference at this time.

The algorithm ensures that the work piece itself does not collide, the workpiece does not collide with the upper and lower dies, and the workpiece does not collide with the machine tools. Prepare for the following process layout optimization algorithm.

Step 3: Process layout optimization algorithm based on differential evolution algorithm

In the case of no interference collision, give comprehensive consideration. For example, the number of turning and turning the workpieces, the number of replacement of press brake punch and die, the moving time of each metalbend and other factors.

The differential evolution algorithm can solve the multi-objective optimization problems. In order to minimize the total processing time, propose a process optimization algorithm. This can find a reasonable bending process and improve the efficiency of platebending.

Step 4: Design simulation test program

Some new users never know what it means. WUXI SHEARCHY press brake manufacturer will share some knowledge with you.

What are CNC Press Brake Working Procedure, Position and Step?

Work Procedure

CNC Hydraulic Brake Press Install

Working Position

Steel Metal Shearing Machine relies on the moving upper blade and the fixed lower blade. They use reasonable blade clearance to apply cutting force to metal plates of various thicknesses. Thus, hydraulic shears separate the metal plate into required size.

Hydraulic Plate Shearing Machine FAQ

SHEARCHY leading shearing machine supplier will introduce its related knowledge for you.

Users cannot add nitrogen into Shearchy plate shears. What are the reasons?

First of all, know well the type of hydraulic plate shears you use: swing beam or guillotine type. The operation of hydraulic guillotine shears is relatively simple. You can add nitrogen as long as the relevant operation button pressed.

Secondly, check the nitrogen cylinder used: whether the nitrogen is full.

Thirdly, check the pressure gauge on the steel metal shearing machine: check whether turn the switch of the metal shear machinery. If not, check if the switch is blocked. This is also the key to add nitrogen successfully.

Finally, there is another situation: the cuter tool holder on the plate shears which has not been put up yet. At this time, you need to check the main cylinder of the steel cutter: is it stuck or not. If stuck, it's useless to flush more nitrogen.

Notes on blades of hydraulic steel metal shears

The cutter blade models can be divided into: swing cut blade and hydraulic guillotine cut blade.

The cutter blade is a very important cutting forging mechanical part. It is widely used in various fields. They can obtain good straightness and flatness on the shear surface to ensure the high quality of the work piece.

First of all, not allowed to cut the laminated steel plate material when using the blade of sheet plate cutter.

The edges of the raw steel sheet shall not be trimmed.

Strictly prohibited to cut the narrow plate not pressed tightly.

Moreover, the cutting edge of the plate cutter blade should be kept sharp. Once there is blunt or crack phenomenon, users need to replace or repair in time.

Metal Plate Bending Machine correct usage determines the production efficiency of the factory.

Metal Sheet Bending Operation Correct Steps

As a professional press brake manufacturer, according to many years of experience, the following common problems and solutions are summarized for your reference.

Start Hydraulic Press Brakes

Firstly, turn on the power. Please turn on the key switch on the control panel. Press the oil pump again to start the machine.

Metal Plate Bending Machine Stroke Adjustment

Pay attention to adjusting the stroke. Make sure to test before bending work. When press brake punch upper die goes down to the bottom, we must ensure that there is a gap of plate thickness. Otherwise, the mold and machinery are easy to damage. The adjustment of stroke also includes electric quick adjustment and manual fine adjustment. Select and adjust according to your actual situation.

Selection of Bend Notch

Commonly, the user should choose a notch 8 times the width of the plate thickness.

For example: when bending 4mm plate, you need to select 32mm notch.

Adjustment of Back gauge

In General, there are electric quick adjustment and manual fine adjustment. The method is the same as that of shearing machine. Press the foot switch to start benders. The bending machine is different from the plate shears. The workers can release the pedal at any time. Release the foot switch and metal plate bending machines will stop. Press again to continue down.