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Classification And Technical Characteristics Of Crimping Machines

Classification And Technical Characteristics Of Crimping Machines The crimping machine is the same as other machines, and its types and functions are also varied. The classification of crimping machines can be divided into hydraulic high-pressure pipe crimping machines, brake pipe crimping machines, air-conditioning pipe crimping machines, power hose crimping machines, etc. according to the function of use, such as straight barrel crimping machines and double-column crimping machines according to their mechanical structure Machine, open-type crimping machine, C-type crimping machine, such as the control method can be divided into electromechanical crimping machine, PLC-type crimping machine, CNC-type crimping machine. Withholding machine technical guidance: 1. The operation principle of double hydraulic circuit is adopted, that is, the advance and retreat of the piston and the opening and contraction of the mold are all powered by the hydraulic power source. It not only moves smoothly and returns quickly, but also does not cause the phenomenon of spring return, which makes the mold unable to open and locks up. Moreover, the design of the cylinder locking system is through the front and rear, which is easy to crimp various special-shaped elbows. 2. The hydraulic system consists of a motor, an oil pump, a solenoid valve, a pressure regulating valve and a hydraulic valve to form a dual hydraulic oil circuit with forward and backward motion, and a quick oil drain valve oil circuit is added to the dual hydraulic oil circuit to achieve more The purpose of quick return, and the speed is adjustable, the 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 repair the circuit, easy to maintain, and simple to replace. 4. The crimping die and die base are processed with no cumulative error 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 long service life of the crimping machine is inseparable from the rationality of material selection, heat treatment, mechanical processing technology and structure. 6. For the double-column crimping machine and the C-type crimping machine, the crimping size must be controlled by numerical control because it is inconvenient to set the dead position.

01-23

2022

Classification And Technical Characteristics Of Crimping Machines
Classification And Technical Characteristics Of Crimping Machines

Talking About The Selection Of Hydraulic Oil For Crimping Machine

Talking About The Selection Of Hydraulic Oil For Crimping Machine 1. Appropriate viscosity, good viscosity-temperature characteristics Viscosity is the first factor to consider when selecting hydraulic oil. Under the same working pressure, if the viscosity is too high, the movement resistance of hydraulic components will increase, the pressure drop of the pipeline and the power loss will increase; if the viscosity is too low, it will increase the volume loss of the oil drum. The internal leakage of the component increases, and the oil film of the sliding parts is thinned, the supporting capacity is reduced, and there is atomization, which overflows from the exhaust port. 2. Good lubricity (anti-wear) The hydraulic system has a large number of moving parts that need to be lubricated to prevent the wear of the relative moving surfaces, especially the hydraulic equipment with high pressure, which requires much higher anti-wear properties of the hydraulic oil. 3. Good antioxidant properties Hydraulic oil will also be oxidized during use. The acidic substances produced by the oxidation of hydraulic oil will increase the corrosiveness to metals, and the resulting sludge deposits will block filters and small gaps, causing the equipment to work abnormally. Therefore, it is required to have good of antioxidant properties. 4. Good rust and corrosion resistance Hydraulic oil will inevitably come into contact with moisture and air during use, as well as acid substances generated after oxidation, which will affect the corrosion of the metal valve core, so that the hydraulic crimping machine equipment cannot work normally. It is recommended to completely replace the old and new oil in 3-5 years.

01-21

2022

Talking About The Selection Of Hydraulic Oil For Crimping Machine
Talking About The Selection Of Hydraulic Oil For Crimping Machine

How To Crimp A Satisfactory Hose With A Crimping Machine And A Hose Crimping Machine

How To Crimp A Satisfactory Hose With A Crimping Machine And A Hose Crimping Machine The technicians of the BNTFLEX crimping machine manufacturer are here to explain how to use the crimping machine to crimp a satisfactory hose. The high-pressure oil hose is mainly divided into high-pressure steel wire braided oil hose and high-pressure steel wire wound oil hose. The high-pressure steel wire braided oil hose is mainly composed of black oil-resistant synthetic rubber inner rubber layer. , middle rubber layer, Ⅰ, Ⅱ, Ⅲ layers of steel wire braided layer, weather-resistant synthetic rubber outer rubber layer. The high-pressure steel wire winding oil hose is mainly composed of inner rubber layer, middle rubber layer, 2, 4 and 6 layers of steel wire winding layer and outer rubber layer. When the user crimps the high-pressure oil hose with the crimping machine and the hose crimping machine, if the crimping amount is too small, the pressure between the fittings and the hose is too loose, and the rubber hose of the crimping machine may be released from the fitting at the beginning of use under the action of oil pressure. , If the withholding amount is too large, then the joint and the hose are pressed too tightly, which will easily lead to local damage to the inner layer of the hose, resulting in cracks. out, or have been running along the steel wire layer to accumulate somewhere, causing the outer layer of rubber to bulge or even rupture. When crimping with a crimping machine and a hose pressing machine, the crimping speed should not be too fast, which will easily cause damage to the inner rubber and rupture of the steel wire layer, which will cause the hose to be damaged prematurely in use. In actual work, when replacing the high-pressure hose, the length of the hose, the number of steel wire layers, the shape and size of the joint should be reasonable, and the bending degree of the hose should be minimized. Most of the damage to the high-pressure hose is caused by improper production. . It is hoped that when users use the hose crimping machine to crimp the high-pressure oil hose assembly, they can correctly select the high-pressure oil hose and buckle out the satisfactory hose assembly.

01-20

2022

How To Crimp A Satisfactory Hose With A Crimping Machine And A Hose Crimping Machine
How To Crimp A Satisfactory Hose With A Crimping Machine And A Hose Crimping Machine

Selection And Design Consideration Of Crimping Machine

Selection And Design Consideration Of Crimping Machine More than 95% of the power source of the crimping machine today uses the hydraulic system, and it is occasionally used in the crimping machine that only presses the low-pressure oil pipe or the crimping machine of the sanitary pipe that uses the pneumatic system or the lever to provide the power. The oil pump of the hydraulic system is equivalent to the heart of the human being, and its function is very important. The selection of the gear pump as the power source of the crimping machine often considers factors such as its low cost, cost saving, and low requirements for oil cleanliness, but its shortcomings For: the supply pressure is low, only equivalent to 60% of the pressure of the plunger pump, the noise is large, and the service life is short. Due to the low supply pressure, in order to increase the withholding pressure, manufacturers often consider sacrificing the shrinkage and expansion capacity of the withholding machine. Improve the transformation of the axial force and radial force of the crimping machine, so often when the customer's requirements are not high, the gear pump crimping machine can be selected. The plunger pump is used as the power source of the crimping machine. The advantages are: high pressure (300kg/cm2), long life of the pump, low noise, such as automatic variable oil supply for YCY series, low pressure large flow, high pressure small flow, the same specifications The motor saves 30% of electricity, and the hose withholding is not easy to leak oil. Because the system is high, the design can achieve a larger opening under the same withholding pressure, so that customers can use it for a long time. But its disadvantages are: higher cost, the same displacement pump, the plunger pump is 8-10 times that of the gear pump, which increases the cost of a single machine, and requires relatively high oil cleanliness, but consider the basic performance. Input-output ratio, it will be very cost-effective to choose YCY system variable pump crimping machine.

01-20

2022

Selection And Design Consideration Of Crimping Machine
Selection And Design Consideration Of Crimping Machine

Be Careful When Installing And Debugging The Hose Crimping Machine

Be Careful When Installing And Debugging The Hose Crimping Machine There are many details that need to be paid attention to in the process of installation and commissioning of the hose crimping machine produced by the crimping machine manufacturer. The main points to be paid attention to for the hose crimping machine are handling, installation, micrometer, pressure adjustment, oil filling, power connection, and mold opening speed adjustment. . 1. Handling: It is suitable to use a forklift to transport the hose crimping machine, and the bottom of the hose crimping machine should be stressed. It is strictly forbidden to lift the hose crimping machine head and the parts of the motor and electrical box. 2. Installation: The pipe pressing machine should be placed horizontally on a stable foundation and grounded. Hydraulics: Precautions for installation and commissioning of hose crimping machine 3. Micrometer: It is used to adjust the shrinkage of the withholding hose. Press 1mm more in the counterclockwise half-circle and 1mm less in the clockwise half-circle. 4. Pressure adjustment: The maximum pressure of the hose crimping machine system is 31.5Mpa, which is adjusted by the relief valve. The pressure is adjusted clockwise to increase, and the pressure is adjusted counterclockwise to decrease (it has been adjusted at the factory, and can be adjusted if necessary). Hydraulics: Precautions for installation and commissioning of hose crimping machine 5. Oil filling: Open the oil tank cover, add 68# anti-wear hydraulic oil to the oil tank to 2/3 of the oil level gauge. 6. Power connection: Connect the power cord to the power supply specified by the hose crimping machine, start the motor to observe the direction of rotation, and 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 direction of the motor is inconsistent with the marked direction, please change the position of two of the power lines. 7. Adjustment of mold opening speed: the speed of mold opening is controlled by the diverter valve, clockwise adjustment, the opening speed is accelerated, and counterclockwise adjustment, the opening speed is slowed down, but too fast opening speed will increase the noise , the best value is not more than 10Mpa (it has been adjusted at the factory, and can be adjusted by yourself if necessary). The installation and debugging of the hose crimping machine cannot be ignored. Perhaps it is the sloppyness of this point that causes the decline in the quality of the hose crimping machine and the shortened life span, which will directly affect the benefits of the enterprise.

01-19

2022

Be Careful When Installing And Debugging The Hose Crimping Machine
Be Careful When Installing And Debugging The Hose Crimping Machine

Experts Analyze The Reasons For The Failure Of The Pressure Pipeline System

Experts Analyze The Reasons For The Failure Of The Pressure Pipeline System The experts of the withholding machine manufacturer will analyze some faults in the pressure pipeline for us today, and analyze the reasons for the faults. The hydraulic pipeline system of construction machinery is the power transmission system of the main engine of construction machinery, which can be described as the blood of the whole machine. The quality problems existing in the hydraulic pipeline system of domestic construction machinery are mainly manifested in the oil leakage, oil seepage and cleanliness of the pipeline system, and the product quality is not up to standard. Causes of failure of hydraulic hose assembly: (1) When the hydraulic hose assembly is crimping the fittings the crimping pressure is too large, and the inner rubber layer of the hose is damaged, causing oil leakage. (2) When the hydraulic hose assembly is crimping the fittings, the crimping pressure is not enough, resulting in oil leakage, oil leakage and pulling off. (3) Under the action of repeated pulse pressure, the jacket rebounds and the buckle pressure decreases, resulting in oil leakage, oil leakage and pulling off. (4) The machining accuracy of the joint is not up to standard, resulting in oil leakage and oil leakage at the interface. (5) The use method is incorrect, resulting in reduced service life. During the operation of the hose crimping machine, the operator needs to be familiar with the relevant production processes, be proficient in operating the crimping machine, tools, and labor protection supplies, and can only take up work after they are fully dressed. Before starting the machine, ensure that all fasteners are firm, that each running part and moving surface are free of obstacles, and that safety protection devices are complete. The joint surface of the mold seat and the mold should be kept clean, and there should be no hard objects such as metal chips. First of all, what are the operating steps of the hose crimping machine? 1. Use a ruler to measure the length of the hose sample. Use a caliper to measure the metal joint data and observe the inner diameter of the hose sample. Prepare the required hoses and fittings. Use a pipe cutter to cut the hose to the desired length and clean the inner hole of the hose. 2. Use a peeling machine to peel off the outer rubber of the hose, and then insert the hose into the metal joint sleeve. The outer rubber of the hose must be peeled off. Insert the metal fitting straight into the hose all the way to the bottom. Measure whether the hose is the same length as the hose sample. Machine the hose with a non-taper shrink machine. Adjust the specified data by the positioner according to the hose to be crimped. 3. Start crimping the hose, either using the manual crimping button or using the foot crimping button. Snap the hose into place, then press the mold open button. After crimping, use a caliper to measure the crimping data. The hose can reach the specified withholding data. After the withholding is completed, stop the machine and cut off the power supply. Secondly, what matters should we pay attention to during the operation of the hose crimping machine? 1. Tighten the positioning screws before installing the module. Before starting the machine, lubricating oil should be injected into the inclined surface of the die base. It is strictly forbidden to use the oil cylinder over-travel. If it shakes during pressurization or depressurization, it is strictly prohibited to process it. If the cylinder piston vibrates or the oil pump makes a sharp noise, the gas should be discharged. 2. The pressure regulating valve should be adjusted to the specified pressure and calibrated regularly. It is strictly forbidden to put your hands on the crimping part when the equipment is running. The replacement of the mold should be carried out after the shutdown. When the temperature of the working oil exceeds 45°C, the machine should be stopped for inspection.

01-18

2022

Experts Analyze The Reasons For The Failure Of The Pressure Pipeline System
Experts Analyze The Reasons For The Failure Of The Pressure Pipeline System

What Should Be Paid Attention To When The Hose Crimping Machine Fails

What Should Be Paid Attention To When The Hose Crimping Machine Fails It is absolutely essential that the hose crimping machine encounters failures during use. If you encounter some minor faults, friends who know some mechanical maintenance can probably solve them quickly, but once there are some major faults in the locking machine, it is not so easy to solve. Then it indicates that the locking machine may need an overhaul. So what elements should we pay attention to before overhauling? 1. Technical appraisal before overhaul At present, some overhauls of the crimping machine are mostly repairs to restore its performance. After the machine has been running for a long time, the aging of the main components and assemblies has reached the limit, so all the machines should be carried out. Dismantled, cleaned, inspected and repaired to make it perform to factory standards. Before the overhaul of the crimping machine, a technical appraisal shall be carried out, which shall be presided over by the technical person in charge of the user unit, with the participation of management, maintenance and drivers, and the pressure, flow, temperature and torque of the various parts of the machine before they are disassembled. Review technical files and operation records and other materials, examine the consumption of fuel and lubricants in detail, and make detailed records. Then compare with the relevant overhaul parameters provided by the original manufacturer to determine whether overhaul is required. The main technical conditions that determine whether a crimping hose machinery needs an overhaul are: (1) The engine power performance index drops by more than 20%; the oil consumption exceeds more than 1 times the rated value; the cylinder pressure of the engine does not reach 60% of the specified index when the temperature reaches 45 ℃ or more. (2) The wear of the main parts of the transmission mechanism has reached the limit, and there are phenomena such as yaw, abnormal noise, impact and jitter. (3) After the steering mechanism is worn, the clearance is too large, and the operation fails; the gears and shafts of the transmission are severely worn, and the gear shift is difficult or frequently skips; the braking mechanism is severely worn, and the braking performance decreases or fails, and cannot be adjusted. (4) The main body of the frame is deformed or cracked; the working device is seriously worn and the operation fails; the normal workload cannot be completed, or the operation accuracy cannot meet the requirements; the traveling mechanism is severely worn and cannot work normally. 2. Selection of overhaul method When the hose-crimping machine is overhauled in the factory, each part should be disassembled, measured, inspected and identified, and the wear detection of each part of each assembly, the cylinder liner, crankshaft, etc. of the engine should be carried out to obtain whether basis for replacement. Generally, the moving parts with greater wear and tear need to be replaced; for some parts that are inconvenient to replace, it is advisable to use welding repair, thermal spraying, electric brush plating and chrome plating to restore their original design dimensions. If the quality is not guaranteed, the parts to be replaced should be purchased from the original manufacturer or the designated cooperative manufacturer as required. Maintenance methods are divided into: on-vehicle repair and replacement assembly repair. The car repair method is to remove the parts from the machine in turn during the repair process, clean, test, classify and repair or replace them, and then reassemble them to restore performance. The on-vehicle repair method takes up a long time for downtime for repairs. Replacing the assembly repair method is that in the repair process, in addition to refurbishing the original frame, it is only necessary to remove all the remaining damaged assemblies or accessories and replace them with pre-prepared (or repaired) assemblies or accessories. , and then assembled into a complete machine repair method. This method can greatly reduce the repair time of downtime, which is beneficial to improve the repair work efficiency, reduce the cost and ensure the repair quality. This is also the most popular maintenance method in the American maintenance system, which is of great significance for the user to improve the integrity rate, utilization rate and production efficiency of mechanical equipment.  3. Precautions ⑴ Pay attention to eliminate potential safety hazards. During the overhaul process, attention should be paid to eliminating potential safety hazards, such as: adjusting the brake clearance, replacing the worn clutch friction plates and making the cab seat to be easily adjusted up and down, as well as eliminating some that are likely to cause injuries to drivers and maintenance personnel and machine failures security risks. Strengthen the driver's awareness of labor protection. When carrying out th

01-18

2022

What Should Be Paid Attention To When The Hose Crimping Machine Fails
What Should Be Paid Attention To When The Hose Crimping Machine Fails

My Country's Hydraulic Machinery Crimping Machine Industry Has Broad Prospects For Development

My Country's Hydraulic Machinery Crimping Machine Industry Has Broad Prospects For Development With the improvement of industrialization and automation level, these equipments need to be equipped with a large number of high-performance and high-reliability hydropneumatic and sealing components. According to preliminary calculations, it is estimated that by 2013, the total domestic demand for hydraulic, hydraulic, pneumatic and sealing products will increase from 20 billion yuan in 2005 (including about 900 million US dollars in imports and nearly 300 million US dollars in exports) to about 35 billion yuan (including about 30 billion yuan in exports). Imports are about 1.5 billion US dollars and exports are about 500 million US dollars). Among them, hydraulic products increased from more than 10 billion yuan to 20 billion yuan, hydraulic products increased from more than 1 billion yuan to more than 2 billion yuan, pneumatic products increased from nearly 3 billion yuan to more than 5 billion yuan, and sealing products increased from more than 3 billion yuan. Yuan increased to 7 billion yuan. construction machinery Construction machinery is the largest user of hydraulic products, accounting for 42.3% of industry sales, and the proportion will expand in the future, so the development trend of construction machinery is very important. It is estimated that by 2013, the annual demand for hydraulic excavators will be about 60,000 to 80,000 units, bulldozers (over 120 horsepower) will be nearly 10,000 units, loaders will be about 100,000 to 120,000 units, graders will be about 2,000 units, and road rollers will be about 1.5 million units. There are about 20,000 engineering cranes, about 80,000 forklifts, and nearly 10,000 cement mixers. In addition, my country now has about 1.4 million construction machinery, which is expected to reach 2 million by 2013. It is also reported that the hydraulic parts imported for the excavators, road machinery, cement mixers and other supporting facilities produced by domestic enterprises each year amount to more than 150 million US dollars. Weifang Yongfeng's hydraulic manufacturing share accounts for 30% of the country's total. In short, the market of hydraulic and seal parts for construction machinery and maintenance will face a new period of great development. These construction machinery products require a large number of high-performance and long-life crimping machines, pipe pressing machines, pipe locking machines, glue stripping machines, pressure testing machines, oil cylinders, cutting machines, etc. Metallurgical mining equipment It is understood that the utilization rate of hydraulic and pneumatic technology in metallurgical equipment reaches 6.1% to 8.1%, accounting for about 10% of the total equipment cost. From the analysis of industry statistics, hydraulic and pneumatic products directly provide support for the metallurgical industry, accounting for 14.5% and 9% of sales respectively (excluding retail sales). It is reported that the hydraulic, pneumatic and sealing products imported by the metallurgical industry for maintenance each year amount to tens of millions of dollars. Therefore, the demand for hydraulic and pneumatic seals for metallurgical and mining equipment supporting and maintenance will increase significantly. Metallurgical mining equipment will require a large number of plunger pumps, cartridge valves, solenoid valves, proportional valves, servo valves, oil cylinders, complete sets of hydraulic systems, pneumatic components and a large number of seals. By 2011, the annual demand for plastic machinery will reach about 150,000 units, of which injection molding machines account for about 40%. There are currently about 400,000 plastic machinery in my country, and it is expected to reach about 800,000 by 2013. Although the current development trend of small and medium-power injection molding machines using electric drives, according to analysis, in the next few years, due to plastic products and costs and other reasons, in addition to high-precision, high-efficiency, and high-quality products that require electric drives, my country will still have a large number of Apply fluid transmission. Therefore, the market demand for plastic machinery supporting, maintenance hydraulic, pneumatic and sealing parts will still maintain a rapid growth trend.

01-17

2022

My Country's Hydraulic Machinery Crimping Machine Industry Has Broad Prospects For Development
My Country's Hydraulic Machinery Crimping Machine Industry Has Broad Prospects For Development

Parts Of The Hose Crimping Machine That Need Regular Maintenance

Parts Of The Hose Crimping Machine That Need Regular Maintenance The hose crimping machine produced by the withholding machine manufacturer not only moves smoothly and returns quickly, but also does not cause the phenomenon of spring return, which makes the mold unable to open and crimps. Moreover, the design of the cylinder crimping system is through the front and rear, which is easy to crimp various special-shaped elbows. The hydraulic system consists of a motor, an oil pump, a solenoid valve, a pressure regulating valve and a hydraulic valve to form a double hydraulic oil circuit with forward and backward movement, and a quick oil drain valve oil circuit is added to the double hydraulic oil circuit to achieve a faster return. bit purpose, with adjustable speed, noise and system pressure reduction. When crimping, the crimping speed should not be too fast, which will easily cause damage to the inner rubber and rupture of the steel wire layer, which will cause the hose to be damaged prematurely in use. In actual work, when replacing the high-pressure hose, the length of the hose, the number of steel wire layers, the shape and size of the joint should be reasonable, and the bending degree of the hose should be minimized. Most of the damage to the high-pressure hose is caused by improper production. . Check whether the protective device on the hose crimping machine is in good condition. If it is not installed properly, it is not allowed to drive the intermediate frequency hose pressing machine. It should have good grounding and electrical insulation, and the voltage should be stable. Check the lubricating parts of the hose crimping machine, and add enough oil when there is no oil or no oil. When crimping hoses of different specifications, the indenter of different specifications should be replaced. When oil leakage is found after long-term use, the seals in the oil cylinder and pipe valve system should be replaced in time. The hydraulic oil is 46# Great Wall brand anti-wear hydraulic oil, and the oil temperature is generally controlled at 30℃~35℃. Whether the pipe end is in good condition and the compression degree of the ferrule nut, etc., and at the same time eliminate the external force of the pipe. For flared pipe joints, most of them are caused by excessive flaring, unsatisfactory quality or repeated disassembly, resulting in flaring deformation or cracks, etc. If there is leakage, the front end can be cut off and re-flaring. If the male and female cone top pressure is used for sealing, the leakage is mostly due to the damage of the two cone surfaces. The cone surface can be ground with abrasive sand. In some cases, O-rings are used. For sealing by end face or outer diameter.

01-17

2022

Parts Of The Hose Crimping Machine That Need Regular Maintenance
Parts Of The Hose Crimping Machine That Need Regular Maintenance
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