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The maintenance of the crimping machine and its daily failure maintenance

The maintenance of the crimping machine and its daily failure maintenance When crimping the crimping machine, place the joint in the center of the mold as much as possible, and do not press on the hexagonal nut. Prevent tools and other foreign objects from entering the press head. Each time after the work is completed, the eight mold bases must be opened to the maximum extent, so that the spring can be in an open state and the spring can be maintained, and the oil cylinder is also in a pressure relief state to extend the life of the oil seal. The most important steps for the operation of the crimping machine Maintenance of the pipe press: The hydraulic oil in the oil tank should be replaced when it exceeds the time limit specified by the hydraulic oil manufacturer, or the oil level gauge should be checked visually. If the hydraulic oil is oxidized and darkened, it must be replaced. Frequently inject anti-wear lubricant into the moving surface of the mold base. During non-pressing machine working hours, please cover the dust cover to prevent debris from falling into the mold base Hose crimping machine is a kind of special hydraulic equipment that rivets high-pressure hose and metal pipe joints together by cold extrusion. According to the structure, it is divided into: four-post crimping machine, ram crimping machine and ring crimping Three kinds of machines. Among them, the ring crimping machine is popular in the market because of its simple structure, small size, material saving, low price, and high power conversion rate. However, the ring crimping machine also has its shortcomings. The tapered layer of the crimped workpiece will peel off and will enter the cylinder block and the working surface of the mold base along the eight expansion joints of the eight-part mold base, and it is not easy to clean, although it is through the opening of a chip hole at the front end of the cylinder and an additional installation in front of the piston Measures such as non-standard dust-proof ring still cannot cure the scratches on the inner wall of the cylinder and the working cone of the mold base.  The choice of anti-wear hydraulic oil in the crimping machine and pipe pressing machine is good or bad, which has a great impact on the working efficiency and service life of the equipment. It can be said that it is an invisible hazard in the crimping machine and the pipe pressing machine. Developed on the basis of anti-oxidant hydraulic oil, it has alkaline high zinc, alkaline low zinc, neutral high zinc type and ashless type products. They are all divided into 22, 32, and 32 according to the 40'C kinematic viscosity. 46 and 68 four grades. The crimping machine and the pipe pressing machine use No. 46 anti-wear hydraulic oil. When crimping with crimping machine and pipe crimping machine, the crimping speed should not be too fast, which can easily cause damage to the inner rubber and breakage of the steel wire layer, and cause premature damage to the hose during use. In actual work, when replacing the high-pressure hose, the length of the selected hose, the number of steel wire layers, the shape and size of the joint should be reasonable, and the degree of bending of the hose should be minimized. Most of the damage of the high-pressure hose is caused by improper production. .

07-28

2021

The maintenance of the crimping machine and its daily failure maintenance
The maintenance of the crimping machine and its daily failure maintenance

Remember three points in the operation of the crimping machine

Remember three points in the operation of the crimping machine With its performance, the crimping machine is used in construction machinery, vehicles, hydraulic machinery, welding and cutting equipment and other industries, and has been favored. In the process of use, the operator can easily overlook some operating procedures: 1. The operator must operate in accordance with the process regulations. 2. The power supply must be cut off after the machine is stopped. 3. When changing the mold, it must be done after the shutdown. 4. The joint surface of the mold seat and the mold should be kept clean, and there should be no hard objects such as metal shavings. 5. Pour lubricating oil on the inclined surface of the mold base before starting the machine. 6. The positioning screws must be tightened before installing the module. 7. The pressure regulating valve must be adjusted under the specified pressure. 8. It is strictly forbidden to reach inside when working. 9. The electrical safety regulations must be observed when overhauling electrical parts Whether the operation of the crimping machine is correct and reasonable is related to the quality of the crimping, so we will share the three points of attention to the operation of the crimping machine. 1. When crimping, prevent tools and other foreign objects from entering the crimping head. 2. When crimping, place the joint in the center of the mold as much as possible, and do not press on the hexagonal nut. 3. After the work is completed, the eight mold bases must be opened to the maximum extent, so that the spring can be in an open state and the spring can be maintained, and the oil cylinder is also in a pressure relief state to extend the life of the oil seal. The staff abide by the operating precautions of the three-point crimping machine to better achieve the crimping effect.

07-14

2021

Remember three points in the operation of the crimping machine
Remember three points in the operation of the crimping machine

How to choose hydraulic oil with crimp

How to choose hydraulic oil with crimp 1. First, the viscosity must be very suitable, and secondly, the viscosity-temperature characteristics must be very good. When we choose, we must consider the viscosity of the oil. In the same working state, if the viscosity is too high, the movement resistance of the parts in the crimping machine will directly increase, and the pressure drop and power loss of the crimping machine pipeline will increase; if the viscosity is very high If the size is extremely low, the internal leakage of the component will increase, and the oil film of the sliding parts will become very thin, and the supporting ability will be reduced, and atomization will occur and overflow from the exhaust port. 2. Lubricity is also very important! The moving parts in the crimping machine need ordinary lubrication and maintenance to prevent some abrasion of the moving surface. Note that the hydraulic equipment with higher pressure requires high abrasion resistance of the hydraulic oil. 3. Key points of anti-oxidation Oxidation changes occur during the use of hydraulic oil. The key point is that acidic substances generated by the hydraulic oil after oxidation will increase the corrosiveness of the metal. If the generated sediments block the filter and small gaps, it will cause the equipment to work abnormally and be vulnerable. , So we must require hydraulic oil to have good oxidation resistance. 4. Anti-rust and anti-corrosion The hydraulic oil will inevitably come into contact with moisture and air during use and the acidic substances generated after oxidation will affect the corrosion of the metal valve core and make the hydraulic crimping machine equipment unable to work normally.

07-13

2021

How to choose hydraulic oil with crimp
How to choose hydraulic oil with crimp

Causes of failure of the crimping machine

Causes of failure of the crimping machine The crimping machine is a device that uses hydraulic transmission technology for pressure processing, and can be used to complete various forging and press forming processing. For example, the forging of steel, the forming of metal structural parts, the pressing of plastic products and rubber products, etc. The crimping machine is one of the first machines to apply hydraulic transmission. At present, hydraulic transmission has become the main transmission form of pressure processing machinery. In the heavy machinery manufacturing, aviation industry, plastics and non-ferrous metal processing industries, etc., crimping machines have become important equipment. The hydraulic drive system of the crimping machine is based on pressure conversion, with high system pressure, large flow and high power. Therefore, special attention should be paid to improving the power utilization rate of the prime mover and preventing shock and vibration when the pressure is relieved to ensure safety and reliability. According to the requirements of the pressing process, the main cylinder of the crimping machine can complete the basic working cycle of rapid down, deceleration, pressure-holding delay, pressure relief, return stroke, and stop (any position), and the pressure, speed and pressure-holding time need to be adjustable. The ejection hydraulic cylinder is mainly used to eject the workpiece, and it is required to realize the actions of ejection, retreat, and stop. For example, when the sheet is stretched, auxiliary actions such as lifting, stopping and pressure return of the ejector hydraulic cylinder are required. Sometimes it is necessary to use a press cylinder to compress the blank to prevent the periphery from wrinkling. The crimping machine takes the maximum pressure (tonnage) that may be output by the main actuator (master cylinder) in the main motion as the main specification of the crimping machine, and it has been serialized. The tonnage of the ejector cylinder often adopts 20%-50% of the tonnage of the main cylinder. The ejector cylinder of the extruder can use about 10% of the main tonnage. The tonnage of the blanking cylinder of the double-action stretching and crimping machine is generally about 60% of the tonnage of the stretching cylinder. The speed of the main cylinder is determined by the pressure processing technology. Generally, in the hydraulic system directly supplied by the pump, the working stroke speed does not exceed 50mm/s, the fast forward speed does not exceed 300mm/s, and the fast retreat speed of the crimping machine The feed speeds are equal. Causes of failure of the crimping machine: (1) When the crimping machine crimps the joint, the crimping pressure is too large, and the inner rubber layer of the hose is injured, causing oil leakage. (2) When the crimping machine crimps the joint, the crimping force is not enough, causing oil seepage, oil leakage and pull-out. (3) Under repeated pulse pressure, the jacket rebounds and the buckle pressure decreases, causing oil leakage, oil leakage and pull-out. (4) The machining accuracy of the joint is not up to the standard, causing oil leakage and oil leakage at the joint. (5) The use method is incorrect, resulting in reduced service life.

07-12

2021

Causes of failure of the crimping machine
Causes of failure of the crimping machine

The installation and debugging of the crimping machine should be cautious

The installation and debugging of the crimping machine should be cautious In the process of installation and commissioning of the crimping machine, there are many details that need to be paid attention to. The main points for attention of the crimping machine are handling, installation, micrometer, pressure adjustment, oil injection, electrical connection, and mold opening speed adjustment.        1. Handling: The crimping machine is suitable to be transported by forklift, and the pressure is applied to the bottom of the crimping machine . The pipe press is strictly forbidden to be inverted. It is strictly forbidden to lift the pressure pipe head, motor and electrical box.        2. Installation: The crimping machine must be placed horizontally on a stable foundation and grounded. BNTFLEX hydraulic: precautions for installation and debugging of CRIMPING MACHINE.        3. Micrometer: It is used to adjust the shrinkage of the crimping hose. It is 1mm more in the counterclockwise half a week, and 1mm less than the clockwise half a week.        4. Pressure adjustment: The maximum pressure of the crimping machine system is 31.5Mpa, which is adjusted by the overflow valve. The clockwise adjustment pressure increases, and the counterclockwise adjustment pressure decreases (it has been adjusted at the factory, and can be adjusted if necessary). BNTFLEX hydraulic: precautions for installation and debugging of CRIMPING MACHINE 5. Oil filling: Open the oil tank cover and add 68# anti-wear hydraulic oil to the 2/3 position of the oil level gauge.        6. Connecting to electricity: Connect the power cord to the specified power source of the pipe crimping machine, start the motor and observe the direction of rotation. The direction of the motor should be consistent with the direction marked by the motor. Yongfeng Hydraulics: Precautions for installation and debugging of the pipe press If the rotation of the motor is inconsistent with the marked direction, please change the position of two of the power cords.        7. Mold opening speed adjustment: The mold opening speed is controlled by the diverter valve and adjusted clockwise. The opening speed is accelerated, and the opening speed is adjusted counterclockwise. The opening speed is slowed down, but the opening speed is too fast and the noise will increase. , The best value is not more than 10Mpa (it has been adjusted before leaving the factory, you can adjust it yourself if necessary). The installation and commissioning of the pipe press cannot be ignored. Perhaps it is this sloppy that causes the quality of the pipe press to be reduced and the life span is shortened, which will directly affect the benefit of the enterprise. Technical guidance for crimping machine: 1. The operation principle of dual hydraulic circuit is adopted, that is, the advance and retreat of the piston and the opening and contraction of the mold are all driven by the hydraulic power source. It not only moves smoothly and returns quickly, but also does not cause the mold to be locked due to the spring return. Moreover, the design of the cylinder locking system is through front and back, which is easy to withhold various special-shaped elbows. 2. The hydraulic system is composed of a motor, an oil pump, a solenoid valve, a pressure regulating valve, and a hydraulic valve to form a dual hydraulic circuit with forward and retreat movement, and a quick drain valve circuit is added to the dual hydraulic circuit to achieve better The purpose of quick return, and the speed is adjustable, noise and system pressure are reduced. 3. In terms of electrical control system, the control circuit is suitable for integrated printed circuit, which is easy to check and repair the circuit, easy to maintain, and simple to replace. 4. The crimping mold and mold base adopt a non-accumulative error processing technology to ensure that the crimping lines of the product after crimping are evenly spaced, and there is no big or small head phenomenon. 5. For the permanent mechanical precision and life of the crimping machine, not only high-quality alloy steel materials are selected for the components of the locking mechanism, but also a unique heat treatment process is adopted. Therefore, the longer service life of the crimping machine is inseparable from the rationality of material selection, heat treatment, machining technology and structure! I hope that after reading the above information, you can think of the same kind of machine as the crimping machine and the crimping machine when you think of the shrinking machine.

07-11

2021

The installation and debugging of the crimping machine should be cautious
The installation and debugging of the crimping machine should be cautious

Technical principle of crimping machine

Technical principle of crimping machine 1. The principle of dual hydraulic circuit operation is adopted, that is, the advance and retreat of the piston and the opening and contraction of the mold are all driven by hydraulic power. It not only moves smoothly and returns quickly, but also does not cause the mold to be locked due to the spring return. Moreover, the design of the cylinder locking system is through front and back, which is easy to withhold various special-shaped elbows. 2. The hydraulic system is composed of a motor, an oil pump, a solenoid valve, a pressure regulating valve, and a hydraulic valve to form a dual hydraulic circuit with forward and retreat movement, and a quick drain valve circuit is added to the dual hydraulic circuit to achieve better The purpose of quick return, and the speed is adjustable, noise and system pressure are reduced. 3. In terms of electrical control system, the control circuit is suitable for PLC circuit, which is easy to check and repair the circuit, easy to maintain, and simple to replace. 4. The crimping mold and mold base adopt a non-accumulative error-free processing technology to ensure that the crimping lines of the product after crimping are evenly spaced, and there is no big or small head phenomenon. 5. For the permanent mechanical precision and life of the pipe press, not only high-quality alloy steel materials are selected for the components of the locking mechanism, but also a unique heat treatment process is adopted. Therefore, the longer service life of the pipe press is inseparable from the rationality of material selection, heat treatment, machining technology and structure! 6. As for the double-column pipe press and C-type pipe press, it is not convenient to set the dead position, so numerical control method must be adopted to control the size of the crimping.

07-01

2021

Technical principle of crimping machine
Technical principle of crimping machine

Precautions and maintenance of hose crimping machine

Precautions and maintenance of hose crimping machine Precautions for hose crimping machine: 1. When crimping, place the joint in the center of the mold as much as possible, and do not press on the hexagonal nut. 2. Prevent tools and other foreign objects from entering the press head. 3. After each work is completed, the eight mold bases must be opened to the maximum extent, so that the spring can be in an open state and the spring can be maintained, and the oil cylinder is also in a pressure relief state to extend the life of the oil seal. Maintenance of hose crimping machine: 1. The hydraulic oil in the oil tank should be replaced when it exceeds the time limit specified by the hydraulic oil manufacturer, or visually check the oil level gauge. If the hydraulic oil is oxidized and darkened, it must be replaced. 2. Frequently inject anti-wear lubricant into the moving surface of the mold base. 3. During non-pressing machine working hours, please cover the dust cover to prevent sundries from falling into the mold base.

06-28

2021

Precautions and maintenance of hose crimping machine
Precautions and maintenance of hose crimping machine

Precautions and maintenance of crimping machine

Precautions and maintenance of crimping machine Precautions for hose crimping machine: 1. When crimping, place the joint in the center of the mold as much as possible, and do not press on the hexagonal nut. 2. Prevent tools and other foreign objects from entering the press head. 3. After each work is completed, the eight mold bases must be opened to the maximum extent, so that the spring can be in an open state and the spring can be maintained, and the oil cylinder is also in a pressure relief state to extend the life of the oil seal. Maintenance of pipe press: 1. The hydraulic oil in the oil tank should be replaced when it exceeds the time limit specified by the hydraulic oil manufacturer, or visually check the oil level gauge. If the hydraulic oil is oxidized and darkened, it must be replaced. 2. Frequently inject anti-wear lubricant into the moving surface of the mold base. 3. During non-pressing machine working hours, please cover the dust cover to prevent sundries from falling into the mold base.

06-27

2021

Precautions and maintenance of crimping machine
Precautions and maintenance of crimping machine

Talking about hose crimping machine

Talking about hose crimping machine 1. The principle of dual hydraulic circuit operation is adopted, that is, the advance and retreat of the piston and the opening and contraction of the mold are all driven by the hydraulic power source. It not only moves smoothly and returns quickly, but also does not cause the mold to be locked due to the spring return. Moreover, the design of the cylinder crimping system is through front and back, which is easy to withhold various special-shaped elbows. 2. The hydraulic system is composed of a motor, an oil pump, a solenoid valve, a pressure regulating valve, and a hydraulic valve to form a dual hydraulic circuit with forward and retreat movement, and a quick drain valve circuit is added to the dual hydraulic circuit to achieve better The purpose of quick return, and the speed is adjustable, noise and system pressure are reduced. 3. In terms of electrical control system, the control circuit is suitable for PLC circuit, which is easy to check and repair the circuit, easy to maintain, and simple to replace. 4. The crimping mold and mold base adopt a non-accumulative error-free processing technology to ensure that the crimping lines of the product after crimping are evenly spaced, and there is no big or small head phenomenon. 5. For the permanent mechanical precision and life of the pipe press, not only high-quality alloy steel materials are selected for the components of the locking mechanism, but also a unique heat treatment process is adopted. Therefore, the longer service life of the pipe press is inseparable from the rationality of material selection, heat treatment, machining technology and structure! 6. As for the double-column pipe press and C-type pipe press, it is not convenient to set the dead position, so numerical control method must be adopted to control the size of the crimping.

06-26

2021

Talking about hose crimping machine
Talking about hose crimping machine
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