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Maintenance work after the hose crimping machine is running

Maintenance work after the hose crimping machine is running The use of hose crimping machines is becoming wider and wider, and the demand is also increasing. The tube shrinking machine applies a closing force to all the matching metal joints through the mold of the tube shrinking machine, and then firmly buckles it on the matched rubber hose. After the hose crimping machine is finished, the mold base and pressure sleeve should be wiped clean and buttered, and the mold base and pressure sleeve should not be too close (the pressure sleeve and the mold base are not in contact), and finally stop the machine and loosen the enlarged handle , Put it into the emergency stop position, and relax the inner spring. It should be noted that the enlarged handle must be placed in the working position before starting up, otherwise, the machine head will be crushed before starting up, causing the machine to fail to work. The hose crimping machine applies a tightening force to the metal jacket through the mold of the tube shrinking machine, and firmly buckles it on the matched steel wire hose. The steel wire hose assembly has been widely used in hydraulic and other industries. The hydraulic compression pipe machine is suitable for the withholding of various engineering high and low pressure hoses, air pipes, water pipes, cable joints, and air conditioning pipes. It is widely used in vehicles, construction machinery, home appliances, welding and cutting equipment and other industries. The crimping quality complies with the relevant industry standards and national standards. The shrinking machine is a necessary equipment for the soft and hard pipe assembly manufacturers and users. The use of tube shrinking machines is becoming wider and wider, and the demand for tube shrinking machines is also increasing. Therefore, it is not only required to have high precision and high efficiency, but also to be able to withhold elbows, flanges, ultra-high pressure and large-diameter hose assemblies of various forms, diameters and various steel wire layers. The ultra-thin tube pressing machine adopts the direct force crimping method on the front, abandoning the conical and inclined force form, and is currently the internationally popular crimping production equipment. Continuous mass production of the km120 CNC thin tube shrinking machine series. Rubber hose assemblies have been widely used in hydraulic and other industries, and are almost ubiquitous. The characteristics of the tube shrinking machine is a large opening, powerful and fast tube shrinking machine. There is ample space before and after the head of the tube shrinking machine to accommodate hydraulic tubing assemblies of different sizes.

11-26

2021

Maintenance work after the hose crimping machine is running
Maintenance work after the hose crimping machine is running

Choose hose crimping equipment, BNTFLEX hydraulic is the first choice

Choose hose crimping equipment, BNTFLEX hydraulic is the first choice The hose crimping is a hydraulic equipment used to withhold the hydraulic oil pipe joint fitting assembly. It applies the shrinking force of the matched metal joint through the pipe pressing machine mold through the hydraulic system, and firmly presses the metal joint on the matched hydraulic pressure. On the oil pipe and rubber hose. The pipe pressing machine is suitable for the withholding of various mechanical high-pressure hoses, hydraulic hoses, air pipes, water pipes, cable joints, and air-conditioning pipes. It is widely used in vehicles, construction machinery, coal mines, hydraulic equipment, household appliances, welding and cutting equipment, envelope reducers , IKO bearings, nsk bearings, SKF bearings, TIMKEN bearings, FAG bearings and other industries. BNTFLEX Hydraulics has always paid attention to the training and development of professional talents, and has a high-quality professional team, from product development, mechanical design, equipment testing, and technical services to professional and technical personnel. The strong technical team guarantees the low price, high quality and high performance of the company's products. The company has always been the highest goal to meet customer needs, has a scientific and strict quality management system, and extends quality control to all aspects of product design and development and pre-sales and after-sales services to ensure the high quality of products and services. With the customer service team directly under the general manager, with the most professional service, the greatest enthusiasm to help customers provide the best quality after-sales service. Through the establishment of a complete after-sales service system, customers will have no worries after purchasing products. The tube pressing mechanism is the working mechanism of the tube pressing machine. The compression sleeve is driven by the cylinder piston to complete the reciprocating movement, and it compresses and relaxes the spring pressure head fixed on the front plate from time to time. Put the assembled connector into the proper position in the middle round hole of the spring pressure head, turn on the motor, send the oil pump to supply oil, change the direction through the control electromagnetic reversing valve, send the cylinder piston to move forward, and pass through the pressure sleeve with the inner cone hole , Press the spring pressure head with the same taper to complete the pressing purpose. Press the mold opening button, the piston drives the compression sleeve to move in the opposite direction, the spring pressure head is restored, and the hose joint can be taken out of the tube press at this time.

11-25

2021

Choose hose crimping equipment, BNTFLEX hydraulic is the first choice
Choose hose crimping equipment, BNTFLEX hydraulic is the first choice

Crimping machine parameters and classification standards?

Crimping machine parameters and classification standards? The hose locking machine is made into high-pressure hoses and fluid connections, referred to as high-pressure hose assembly. High-pressure hose assemblies are widely used in oil fields, coal mines, aerospace, construction machinery, agricultural machinery and other industries. The most important parameters for choosing a hose crimping machine are: 1. The size of the hose usually refers to the inner diameter of the hose 2. Which material of the hose is braided or twisted in several layers, 3. Withholding force and requirements. Crimping machine manufacturer's classification standard: The most commonly used are: hydraulic, numerical control, etc. There is no national standard for the pipe locking machine for the time being. Related national standards for hydraulic hose joints: GB/T 9065.1-1988 hydraulic hose joint connection size flared GB/T 9065.2-1988 hydraulic hose joint connection size card sleeve type GB/T 9065.3-1988 hydraulic hose joint connection size welding type or quick change type The working mechanism of the hose crimping machine: the compression sleeve is driven by the piston of the oil cylinder to realize reciprocating movement, and continuously compress and loosen the spring pressure head fixed on the front plate. Put the assembled connector into the appropriate position in the middle round hole of the spring pressure head, turn on the motor, drive the oil pump to supply oil, and control the electromagnetic reversing valve to drive the cylinder piston to move forward through the pressure sleeve with the inner cone hole , Press the spring pressure head with the same taper to achieve the purpose of pressing. Press the mold opening button, the piston drives the pressure sleeve to move in the opposite direction, and the spring pressure head is restored. At this time, the hose joint can be taken out from the hose crimping machine.

11-24

2021

Crimping machine parameters and classification standards?
Crimping machine parameters and classification standards?

Precautions for the use of hydraulic equipment

Precautions for the use of hydraulic equipment 1. Using high-precision filter, according to the requirements of electro-hydraulic servo valve for filtration accuracy, generally 5-10um 2. The material or paint of the inner wall of the fuel tank should not be changed to the pollution source of the oil all year round. The material of the fuel tank of the withholding machine control system should preferably be stainless steel. 3. After the oil tank and piping system go through a general acid treatment process, inject low-viscosity hydraulic oil or turbine oil for no-load cycle flushing. After the flushing is qualified, all the cleaning oil is discharged, and the qualified hydraulic oil is injected into the oil tank through the precision filter. 4. In order to ensure that the crimping machine control system has a better purification function during operation, it is best to add a low-pressure self-circulating cleaning circuit 5. The installation position of the electro-hydraulic servo valve is as close as possible to the hydraulic actuator, and there are as few hoses as possible between the servo valve and the actuator. These are all to improve the frequency response of the system 6. Electro-hydraulic servo valve is a precision product integrating mechanics, hydraulics and electricity. You must have relevant basic knowledge before installation and commissioning. In particular, you must read and understand product samples and instructions in detail. Pay attention to a few points; a Whether the model of the installed servo valve conforms to the design requirements, and whether the servo valve dynamic and static performance test data at the factory are complete b Whether the model and technical data of the servo amplifier meet the design requirements, and its adjustable parameters must match the servo valve used; c Check the control coil link mode of the electro-hydraulic servo valve, series, parallel or differential link mode, which one meets the design requirements d Whether the model and connection mode of the feedback sensor meet the design requirements, pay special attention to the accuracy of the sensor, which directly affects the control accuracy of the system; e Check whether the oil source pressure and stability meet the design requirements. If the system has an accumulator, check the charging pressure 7. The hydraulic cylinder used in the control system of the crimping machine should be a low-friction hydraulic cylinder, and its minimum starting pressure should be measured before installation, as the basis for checking the hydraulic cylinder in the future.

11-23

2021

Precautions for the use of hydraulic equipment
Precautions for the use of hydraulic equipment

Those about crimping machine

Those about crimping machine The hose crimping machine is suitable to be transported by a forklift, and the pressure is applied to the bottom of the hose crimping machine. The hose crimping machine is strictly prohibited from inverting. It is specially added to raise the hand, which is convenient for users who do not have a forklift to carry it at will. It is strictly forbidden to lift the head of the buckle tube, motor and electrical box. 1. Installation: The crimping machine and hose crimping machine should be placed horizontally on a stable foundation and grounded. 2. Oil filling: Open the oil tank cover and add 46 hydraulic oil to the 2/3 position of the oil level gauge. 3. Electricity connection: connect the power cord to the power supply specified by the buckle 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. If the direction of the motor is inconsistent with the marked direction, please change the position of two of the live wires. 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. Standard of anti-wear hydraulic oil for pipe press: (l). Proper viscosity and good viscosity-temperature performance to ensure that the hydraulic components get good lubrication, cooling and sealing under the conditions of changes in working pressure and working temperature. (2) Good extreme pressure and anti-wear properties to ensure that the friction pairs in the oil pump, hydraulic motor, control valve and oil cylinder are normally lubricated under high pressure, high speed and harsh conditions to reduce wear. (3) Excellent anti-oxidation stability, hydrolysis stability and thermal stability, to resist the influence or action of air, moisture, high temperature, high pressure and other factors, so that it is not easy to deteriorate and prolong its service life. (4) Good anti-foaming performance and air release value to ensure that the foam generated under the condition of mechanically vigorous stirring during operation can disappear quickly; and the air mixed in the oil can be released in a relatively short period of time. Realize accurate, sensitive and smooth static pressure transmission. The normal use of the pipe press during use is a crucial issue. The correct use of the crimping machine has become the key to technical maintenance and failure prevention. It is necessary to establish an on-site management idea of ​​"repair by maintenance", highlight "scientificity", "mandatory", and "foreseeability", so as to "prevent problems before they occur" and avoid the enlargement of minor faults. Lubricate the crimping machine, scrubbing and cleaning the crimping machine, and regularly check the equipment to ensure the normal operation and service life of the machine.

11-22

2021

Those about crimping machine
Those about crimping machine

The specific method of operation of the crimping machine

The specific method of operation of the crimping machine The crimping machine is a hydraulic equipment used to crimp the hose assembly. It applies the shrinking force to the matched metal joint through the dies of the crimping machine, and firmly crimps the metal joint on the matched high-pressure oil hose for construction machinery or automobile. Brake pipes, oil hoses, air conditioning hoses, power hoses. 1. Look around the work site and remove all debris that hinders work and walking. There should be no oil stains on the ground to avoid slipping. 2. Before the operation, place the enlarged handle on the working position, start the motor for three minutes, and reciprocate for two minutes without load, and grease each mold base. 3. At the end of the operation, the mold base and pressure sleeve should be wiped clean and buttered, and the mold base and pressure sleeve should not be too close (the pressure sleeve and mold base do not touch), and finally stop, loosen the enlarged handle, and put it in. Stop in an emergency position to relax the inner tension spring. 4. When crimping the large elbow high-pressure pipe and cannot reach into the machine, the enlarged handle should be moved to the emergency stop position. After putting it in, move the enlarged handle to the working position, then the withholding can be carried out. After the withholding is finished, move back to the emergency stop. Position, turn around and put in, and then move the enlarged handle into the working position for crimping. 5. Check whether the protective equipment on the crimping machine is intact. If it is not installed, it is forbidden to drive. The intermediate frequency crimping machine should have excellent grounding and electrical insulation, and the voltage should be stable. 6. Check the smooth parts of the crimping machine, and add enough oil when there is no oil or no oil. 7. When crimping hoses of different standards, the indenter of different standards should be replaced.

11-21

2021

The specific method of operation of the crimping machine
The specific method of operation of the crimping machine

The specific method of operation of the crimping machine

The specific method of operation of the crimping machine The crimping machine is a hydraulic equipment used to crimp the hose assembly. It applies the shrinking force to the matched metal joint through the dies of the crimping machine, and firmly crimps the metal joint on the matched high-pressure oil hose for construction machinery or automobile. Brake pipes, oil hoses, air conditioning hoses, power hoses. 1. Look around the work site and remove all debris that hinders work and walking. There should be no oil stains on the ground to avoid slipping. 2. Before the operation, place the enlarged handle on the working position, start the motor for three minutes, and reciprocate for two minutes without load, and grease each mold base. 3. At the end of the operation, the mold base and pressure sleeve should be wiped clean and buttered, and the mold base and pressure sleeve should not be too close (the pressure sleeve and mold base do not touch), and finally stop, loosen the enlarged handle, and put it in. Stop in an emergency position to relax the inner tension spring. 4. When crimping the large elbow high-pressure pipe and cannot reach into the machine, the enlarged handle should be moved to the emergency stop position. After putting it in, move the enlarged handle to the working position, then the withholding can be carried out. After the withholding is finished, move back to the emergency stop. Position, turn around and put in, and then move the enlarged handle into the working position for crimping. 5. Check whether the protective equipment on the crimping machine is intact. If it is not installed, it is forbidden to drive. The intermediate frequency crimping machine should have excellent grounding and electrical insulation, and the voltage should be stable. 6. Check the smooth parts of the crimping machine, and add enough oil when there is no oil or no oil. 7. When crimping hoses of different standards, the indenter of different standards should be replaced.

11-21

2021

The specific method of operation of the crimping machine
The specific method of operation of the crimping machine

Maintenance during the use of the hose crimping machine

Maintenance during the use of the hose crimping machine The hydraulic equipment of the withholding hose assembly, which applies the shrinking force of the matched metal joints through the mould of the withholding machine, and firmly holds the metal joints on the matched high-pressure oil pipes for construction machinery or the brake pipes, oil pipes and air conditioners of automobiles. On the tube and power tube. Suitable for all kinds of mechanical high and low pressure oil hoses, air hoses, water hoses, cable joints, automobile air conditioning hoses, automobile power steering pipes, oil hoses, gasoline supply hoses, as well as construction accessories, daily hot water hoses, widely used in vehicles, Construction machinery, hydraulic machinery, welding and cutting equipment and other industries. Special equipment, such as (hydraulic machinery, excavators, loaders, cranes, automobile air-conditioning pipes) that are smoothly and accurately crimped on the hose, is a necessary equipment for hydraulic machinery factories and excavator repair points. The tube press module adopts a double-inclined design, with increased buckle pressure, no taper, long service life, low noise, small size, light weight, multiple functions, fast mold opening, easy operation, and easy maintenance. 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. Every time after the work is completed, the eight mold bases must be opened to a large 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. Pipe press maintenance 1. The hydraulic oil in the oil tank should be replaced when the time limit specified by the hydraulic oil manufacturer is exceeded, or the oil level gauge should be checked visually. 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 the working hours of the non-pressing machine, please cover the dust cover to prevent sundries from falling into the mold base.

11-20

2021

Maintenance during the use of the hose crimping machine
Maintenance during the use of the hose crimping machine

Design and structure principle of hydraulic hose crimping machine

Design and structure principle of hydraulic hose crimping machine The structure of the crimping machine. The main machine and hydraulic system of the hose crimping machine are designed as a centralized assembly box structure, and a hose joint socket that can be connected with the pipeline of the hydraulic station is reserved on the box body. Spare molds, common tools and other spare parts can be stored in the box. The main machine of the hose crimping machine is the hydraulic cylinder 1, the taper sleeve 8 and the piston rod 5 are connected with the back cap 6 as a whole, and the punch block 9 and the center sleeve 10 are connected with the rear positioning plate 11 by the nut. The high pressure of the hydraulic system is The liquid enters the piston cavity from the port, pushes the piston rod outwards, and presses the outer cone surface of the punch block through the inner cone surface of the cone sleeve 8, so that the mold is elastically contracted radially, and the metal joint is compressed to produce a certain amount of radial plasticity. Deformation to achieve the purpose of connecting the metal joint and the hydraulic hose. When the oil is supplied from the reverse oil port, the piston rod retracts, the taper sleeve releases the compression of the counter block, and the block recovers due to the elasticity of the spring, completing a crimping cycle of the joint. The working principle of the liquid compression tube machine When working, first fit the end of the hydraulic hose with the metal pipe joint 4, and insert it into the predetermined position of the inner hole of the punching block. Then turn the operating valve 7 to the left position. At this time, the host A cavity is a high pressure cavity, and the B cavity is a low pressure cavity. The piston moves to the right under the action of the liquid pressure, and the piston rod drives the cone sleeve to move axially to the right to compress the punch block. In this way, the punch block is forced to contract radially, and the metal pipe joint is crimped until the preset compression amount is reached. This process is called the compression process. Then turn the operating valve to the middle position and pause for a certain period of time (about 1 min). At this time, the A and B chambers are respectively closed and in a pressure-holding state, and the liquid discharged by the liquid pump returns to the liquid tank through the operating valve. This process is called the holding pressure process. Next, turn the operating valve to the right. At this time, the A cavity becomes a low pressure cavity, and the B cavity becomes a high pressure cavity. The piston moves to the left under the action of the liquid pressure, and the piston rod drives the cone sleeve to retract in the opposite direction. After the pressure is released, the punch block is opened under the action of the spring until the taper sleeve returns to the original position. At this time, pull out the crimped hydraulic hose from the mold. This process is called the rollback process. After the three processes of compression, pressure holding and retreat, one cycle of joint crimping is completed. When the host is in the state of designing technical parameters, each crimping cycle is completed for about 3 minutes at most. The design of the main body of the crimping machine 1 The structure design of the center sleeve and the cover 1.1 The structure design of the center sleeve The center sleeve is a round sleeve with a shaft shoulder on the shaft shoulder and a threaded hole on the shaft shoulder. On the board. Since the center sleeve and the taper sleeve are universal, it must also meet the requirements of compressed pipe diameters of 6 mm, 8 mm, 10 mm, 16 mm, 19 mm, 25 mm, 32 mm, so the largest diameter is now The center sleeve of the 32 mm tube is the reference design center sleeve, and then the size of the punch block for different pipe diameters is designed.

11-19

2021

Design and structure principle of hydraulic hose crimping machine
Design and structure principle of hydraulic hose crimping machine
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