Solution to the use problems of electric screw presses

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We all know that electric screw presses are widely used in many fields. It is generally believed that electric screw presses are used in industry. In fact, their appearance will appear in many industries and are indispensable tools in our production. With it , Our forging work can become smoother. However, no matter how good the performance of the device is, after a period of use, it will cause equipment failure due to various problems, which will affect the normal use and use effect.

Solution to the use problems of electric screw presses

In order to help users solve various problems in the use of electric screw press machine, the following content will provide relevant insights:

1. Component repair method. Remove the entire parts that need to be repaired by the electric screw press, replace it with a set of parts prepared in advance, and then send the replaced parts to the repair shop for repair, so that they can be used again next time. This method will save the assembly time of parts disassembly and shorten the downtime of repair. Especially when the newly replaced parts are not properly sized with the original parts, or the original parts are difficult to disassemble, it will affect the production due to too long downtime for repairs. In this case, this method is more suitable, such as the repair of the vacuum brick extruder or the repair of the mixing shaft of the mixer.

2. Divisional repair method. The characteristic of this method is that the various parts of the equipment are not repaired at the same time, but are repaired separately in order according to the individual parts of the entire equipment, and only part of them are repaired at a time. This method has short downtime for each repair and will not affect production. For example, the overhaul of the non-burning electric screw press forging can be divided into three parts: replacing the twister, repairing the transmission shaft, and reducing the gear. The downtime of each repair is short, and the equipment utilization rate of the brick extrusion machine can be improved.

3. Synchronous repair method. This refers to several equipments that are closely related to each other in the process, and they are scheduled to be repaired at the same time to achieve synchronization of repairs to reduce downtime for scattered repairs.

Through the introduction of the solutions to the failure of the electric screw press, it is not difficult to see that no matter which method can effectively solve the problem, but the steps of each method are different, and the failure occurs when the equipment is used. At that time, we can choose the method that suits us according to our needs and actual situation. Of course, we must regularly check and maintain the equipment during use to reduce the probability of equipment failure.

Automatic friction press machine for sale

Automatic friction press machine operation rules

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Automatic friction press is a versatile pressure processing machine, which is widely used and can be used in various industries of pressure processing. Since its creation, friction presses have played an important role in industrial development. In order to regulate its operation, it is necessary to pay attention to follow the process:
1. Wear and wear protective equipment.
2. Observe the general safety technical operation regulations of shear punching machinery.
3. The mold closing height must be checked before installing the mold. The closing height can only be installed within the allowable range. Adjust the upper and lower strokes of the punch to keep it within the specified safety range.

friction press machine operation rules
4. When the device is put on the mold, it should be aligned with the hole of the mold handle, so as not to bite the edge of the hole when the slider falls. The area of ​​the template should not be too small to avoid crushing the upper die hole.
5. When using the top material, the length of the rods on both sides should be adjusted to be consistent, and must not be skewed.
6. The process of starting the equipment is to start the oil pump (or first open the compressed air valve) and then start the friction wheel motor. The opposite is true when stopping. The motor driving the friction wheel should be turned off before the oil pump (or compressed air valve) is turned off.
7. Pay attention to whether the oil pump pressure or compressed air pressure is normal when working.
8. No other work such as machine tool adjustment or mold installation is allowed while the flywheel is rotating.
9. After the work is completed, put the punch down smoothly and close the car in order.
The advantages of automatic press machine: it has the characteristics of simple structure, small size, short transmission chain, convenient operation, safe operation, and small maintenance workload. The press can accurately set the strike energy, the strike force is displayed, and can be based on the molding accuracy Adjust the energy and impact force to reduce the mechanical stress and thermal contact time of the mold and extend the life of the mold. Automatic friction screw presses have two transmission forms: one is the screw press transmitted through the first gear, the specifications are 0.4MN ～ 80MN, and the other is the direct drive electric screw press, the specifications are 0.16MN ～ 16MN . The press has good rigidity, high guiding precision of the slider, and strong anti-eccentric load capacity. It can be used for multi-station die forging and is a new type of energy-saving and environmentally friendly press.

four forms of industrial forging presses

Several forms of industrial forging press machine

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Forging is a common name for forging and stamping. It uses the hammer head, anvil, punch or through the die of the forging machine to apply pressure to the blank to make it plastically deformed to obtain the desired shape and size. Forging machine tools are equipment for cold working of metal and machinery. It only changes the outer shape of metal. This machine tools include plate bending machine, shearing machine, punching machine, hydraulic machine, bending machine, etc.

Several forms of forging press

There are four forms of industrial forging presses:

1. Spiral forging machine

The forging machine that reverses the rotary motion into the up and down reciprocating motion of the slider. The screw press machine is usually driven by the motor through the friction disk to drive the flywheel rim to make the flywheel rotate, so this press is also called a friction press. The largest friction press in China is 25 trillion cattle. Later, electric screw presses that used motors to directly drive the flywheel appeared. It has a compact structure and few transmission links. Due to frequent commutation, it requires higher control electrical appliances and special motors.

2. Extrusion forging machine

Hot extrusion forging presses are widely used in the production of pipes and profiles for non-ferrous metals such as aluminum and copper, and belong to the scope of the metallurgical industry. Hot extrusion of steel is used not only to produce special pipes and profiles, but also to produce solid and hole (through or non-through holes) carbon steel and alloy steel parts that are difficult to form by cold or warm extrusion, such as rods, barrels, containers, etc. with large heads. The cold extrusion forging press was originally only used to produce pipes, profiles such as lead, zinc, tin, aluminum, copper, etc., as well as toothpaste hoses, dry battery shells, bullet shells and other parts . The cold extrusion operation is simple and suitable for smaller parts produced in large quantities.

3. Mechanical pressure forging machine

The mechanical pressure forging press converts the rotary motion of the motor into the linear reciprocating motion of the slider through the crank slider mechanism, and is a electric forging press that performs forming processing on the blank. The mechanical press is stable and reliable, and is widely used in stamping, extrusion, die forging and powder metallurgy processes. The number of mechanical presses accounts for more than half of the total number of various forging machines. The specification of the mechanical press is expressed by the nominal working force (kN), which is the movement of the slider to the bottom dead center of the stroke about 10 to 15 mm (or the crank angle from the bottom dead center is about 15 ° to 30 °) is the maximum working force designed to calculate the base point.

4. Roll forging press

A metal forging method in which a metal billet passes through two relatively rotating sector dies and undergoes plastic deformation to form a workpiece. It is a special form of forming rolling. Roll forging can be used to produce connecting rods, twist drills, wrenches, spikes, hoe, picks and turbine blades. The roll forging process uses the rolling forming principle to gradually deform the blank. Compared with ordinary die forging, it has the advantages of simple equipment structure, stable production, low vibration and noise, easy automation, and high production efficiency. Roll forging is divided into two types: blank roll forging and forming roll forging. Billet roll forging is to prepare blanks of required shape and size for die forging; forming roll forging can directly produce forgings that meet the shape and size requirements.

the price of friction presses

Factors affecting the price of friction presses

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Friction press is a screw press using friction drive method, also known as double-disk friction screw press. It is a versatile pressure processing machine with a wide range of applications and can be used in various industries of pressure processing. In the machinery manufacturing industry, the application of the press is more extensive, and can be used to complete the work of die forging, upsetting, bending, correction, precision pressing, etc., and some flashless forging is also completed by this press.

Factors affecting the price of friction presses

For the price of friction presses, this issue has attracted a lot of attention because bricks are a very important material in our construction industry. Any building we build will use bricks as the corresponding material. It is in this situation that the demand for bricks in the construction industry is very large. Correspondingly, more and more brick manufacturers are appearing. They will also choose presses to help themselves in the production of bricks, it is brick press machine.

The price of friction presses will also be affected according to different models and different sizes. The corresponding prices of different models or different sizes of presses will also be different. Different manufacturers require different equipment power, and the size of the equipment will be different. We choose equipment with larger specifications, and the corresponding price will be higher. After all, the cost of manual production and materials for large equipment will be relatively higher. Moreover, large equipment will take longer to produce, so the overall cost will be more expensive. The price of our press is very different from our model, and the overall price will also be very different, so we need to choose the press machine that suits our specifications and size according to our needs.

The price of friction presses will also be very different in different regions. The corresponding labor costs and material costs will also be different in different regions, which will have an impact on our overall equipment costs. Of course, different manufacturers in each region will have different overall processing and transportation costs, and the cost of the equipment itself will also fluctuate. Related Reading: Automatic friction press machine operation rules

Through the different factors above, we also know that the price of friction presses is affected by many different factors, and they will also be controlled by these different factors, and price fluctuations will definitely exist. Then when we choose to buy, we can compare several brands of different brands. While choosing good quality equipment, we must also ensure that the overall cost is reasonable, so that we can choose a satisfactory press.

refractory brick presses

Types of presses commonly used in refractory brick production workshops

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In the production process of refractory bricks, the molding process is its most important part. When producing refractory bricks, the entire molding process setting is often related to the product density. Under the premise that there is no problem with the raw materials, the general product density meets the prescribed requirements that there is basically no problem with other indicators. For this reason, we generally control production according to the density of bricks. The types of presses commonly used in refractory brick production can be basically divided into three categories:

Types of presses commonly used in refractory brick production workshops

1. Friction press

Friction press is also called double-disc friction press. They mainly rely on friction to transfer energy, hence the name. During work, the vertical and flat wheels rub against each other, lift the slider, store energy, and then release it to generate impact pressure. The whole process is simple and clear. The structure, operation and auxiliary equipment of the friction press are very simple, and the price of the accessories is low, so that it is very easy to accept whether it is the procurement cost or the training of the operator and maintenance worker. Therefore, many industries such as machinery manufacturing, automobile manufacturing, forging and refractory are widely used.

At present, the main friction press models commonly used in the refractory brick production workshop are: J67-300T, 400T, 630T, 1000T, 1600T; J93-400T, 630T, 1000T, 1600T, such as J93 Series Refractory Friction Screw Press For Brick, J67 Series Refractory Friction Screw Brick Press Machine, etc.

2. Electric screw press

The electric screw press is a new type of forging equipment with wide application and strong applicability. Its structure is simple and its capacity is large. In order to facilitate the later mold design, the slider designed by the electric screw press has no bottom dead center. Both are very simple. The electric screw press can be used not only for hot forging, but also for precision forging and finishing, with a wide range of applications, such as various precision forging, finishing, precision pressing, embossing, correction, calibration, and forging precision .

The electric screw press is small in size, without vertical wheels, simple in operation, safe in operation, and accurately adjustable in striking force, so the mold wear rate is low, the maintenance cost in the later period is low, and the workload is small. The electric screw press is well-designed, the guide precision of the slider is high, and the ability to resist eccentric load is strong, which is very suitable for multi-station die forging. According to the needs of the use environment, there are two types of transmission methods for the electric screw press. One is the belt drive, and the belt-driven electric screw press has good shock resistance; the other is the gear drive, and the gear-driven electric screw press has good rigidity.

3. Hydraulic press

The hydraulic press is a fully automatic equipment controlled by PLC, which is a combination of mechanical, electrical and hydraulic. It is mainly composed of the following modules: hydraulic system, electrical control system, mechanical system, human-computer interaction system. Through the cooperation of various modules to achieve the work of feeding, pressurizing, mold release, brick clamping and so on.

The presses for the production of the above three types of refractory bricks have their own characteristics and their own advantages and disadvantages. Therefore, customers need to choose according to their actual production needs and capabilities.

mechanical and hydraulic presses

Advantages and disadvantages of mechanical and hydraulic presses

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Mechanical press is a forging machine driven by a crank link or toggle lever mechanism, cam mechanism, and screw mechanism. It is a machine tool for pressure processing of materials. It is processed by applying strong pressure on the blank to deform and break it. Components.

Compared with mechanical transmission, hydraulic transmission has many technical advantages such as large power-to-mass ratio, convenient stepless speed regulation and overload protection, and flexible and convenient layout.

Advantages and disadvantages of mechanical and hydraulic presses

So, What are the main advantages and disadvantages of mechanical and hydraulic presses?

1. The hydraulic press uses a hydraulic pump to generate power through the control circuit hydraulic actuator to transmit power. The liquid meson has water and emulsion; hydraulic oil. It is characterized by high working pressure, stable operation, free control of working stroke, large adjustment range, large working space, and moderate working efficiency. It can complete most of the work of mechanical press machine and has a wide range of applications. The configuration of the hydraulic press is more complicated. The larger presses are generally equipped with independent pumping stations, the control parts and circuits are more complicated, and the cost is relatively high.

2. From the perspective of the mold, the hydraulic press is suitable for large, complex and precise automotive sheet metal parts, especially with a “stretch” function. Suitable for large cover parts and door parts of automobiles. Its characteristics are relatively dense compared to mechanical presses, and the stability of product structure and size is better. Maintenance is more convenient than mechanical presses, because of the standardization of hydraulic parts, the maturity of the theory is very high. For example, to find faults, you can draw wings from a hydraulic schematic diagram. Just insist on using genuine hydraulic oil.

3.  The crank-arm press uses the crank arm to transmit force, which is characterized by fast running speed and high working efficiency, and the working stroke is fixed and cannot be adjusted. It is strictly forbidden to overload operation. Generally used for blanking, punching, stretch forming, etc.

The friction screw presses use the wheel to drive the friction wheel to transmit the force by the inertia rotating screw, which is characterized in that it is not restricted in the effective working area of ​​the screw, the transmission pressure is large, and the work efficiency is moderate. The operation is not easy to control. Generally used for material correction; simple molding; die-casting cavity molding. Shuangdong press is mainly used for stretch forming. It relies on the screw to transmit force directly.

Mechanical press 1. fast operation, high efficiency, low cost, simple control part, easy maintenance; 2. small work surface, generally equipped with counterweight wheels (flywheels) to increase its transmission power Noise and vibration.

Compared with mechanical transmission, hydraulic transmission has a large power / mass ratio, which is convenient for stepless speed regulation and overload protection, flexible and convenient layout and other technical advantages. Mechanical presses are fast, but their strength is not as large as hydraulic presses. Hydraulic presses are heavy but slow.

Workshop formal lifting pillar

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Fangze science and technology new workshop formal lifting pillar
On May 2, 2014, the newly built workshop of fangze technology formally lifted the pillar.The workshop is a continuous design, covers an area of about 5,000 square meters, the maximum hoisting capacity of 100 tons, the workshop is expected to be completed by the end of the year, after completion will greatly meet the needs of the company’s assembly workshop, to better meet customer demand to provide a strong guarantee.

The function and characteristic of electric screw press

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Electric screw press is a kind of forging and pressing equipment used for hot forging, precision forging and finishing. Electric screw press is often used in pressure welding process of stainless steel double bottom pot, and precision forging of titanium alloy blade and other blades.

The function and characteristic of electric screw press

Features of electric screw press:

1. The power control of the press is accurate and the stroke times are high.

2. Easy operation and maintenance, maintenance workload is small, save labor and maintenance costs.

3. Advanced electrical control technology and motor drive will not impact the power grid and affect the normal operation of other equipment.

4. According to the forging forming process, adjust the strike force and strike energy, forging forming precision is high, mold stress is small, mold service life is long.

5. No fixed lower dead point, no need to adjust the height of the mold, will not produce the phenomenon of stuffy car.

6. Compared with the hydraulic screw press, there is no need for complex hydraulic drive equipment, and there is no hydraulic oil leakage and pollution of the environment and hydraulic failure.

7. Compared with the friction screw press, frictionless disc, horizontal shaft and other intermediate transmission device and friction belt wearing parts, less parts, high reliability, good accuracy.

8. Simple structure, compact, short transmission chain, safe operation.

Then, what is the working cycle of the electric screw press?

Electric screw press can not only punch the workpiece, but also can be stamped. The different processing methods of the press have different requirements on the pressure of the system and the speed of the punch. The working process is also more complicated.  Recommended reading: solution to the use problems of electric screw presses

During the punching process, the punch falls and punches the workpiece at a relatively high speed, and rises and returns quickly. The stamping process requires the slider to fall at a faster speed. When the workpiece is encountered, the punch speed decreases and the system pressure increases to ensure the stamping of the steel plate is done. After the stamping is completed, the punch rises back to the initial position at a faster speed, and then completes the work cycle process.

Under different processing techniques and procedures, the pressure of the hydraulic system needs to be changed and adjusted frequently. In order to produce a larger punching pressure to meet the work requirements, the pressure requirements of the system are relatively high. The electric screw presses have a large difference in the running speed of the hydraulic punch during the empty stroke and the pressurization stroke, the oil flow in the hydraulic system is large, and the system power requirements are high. Therefore, the entire system is a high-pressure large-flow system, which is the stability and safety requirements are high.

Hot die forging press

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The function and characteristic of hot die forging press
Hot die forging press is used for the die forging and finishing of a large number of black and non-ferrous metals in automobile, ship, mining machinery, petroleum machinery and other manufacturing industries.

Features of hot die forging press:
1, the forging of high precision, high material utilization, high productivity, easy to achieve automation.
2. Low requirements for workers’ operation technology and low noise and vibration.
3. Fast strike speed, short hot contact time and long service life of the mold.
4. High tilting resistance, high precision guide rail, good forging quality.
5. Adopt PLC control and multiple safe operation circuit system to ensure operator safety.

Forging and pressing for current situation

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Friction press is a kind of omnipotent pressure processing machine, which is widely used in various industries of pressure processing.In the mechanical manufacturing industry, the friction press is more widely used, can be used to complete die forging, upsetting, bending, correction, precision pressing and other work, some non-flash forging is also used to complete this press.
Friction press is a kind of screw press with friction drive, also known as double disk friction press, metal forging workshop press production group it USES the flywheel and friction disk contact transmission, and with the relative movement of screw and nut principle and work.Because it is in the use of more than ten thousand energy, and has the advantages of simple structure, installation, control and auxiliary equipment and low price, so in the machinery manufacturing, automobile, tractor and aviation industry stamping workshop, forging workshop and die forging workshop are widely used, can also be blanking.Friction press is a building materials machinery, widely used in ceramic tile, ceramic tile, refractory products dry press molding production.