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Precautions for pre-installation of crimping machine

Precautions for pre-installation of crimping machine The crimping machine is one of the main products provided by our company. What are the pre-installation precautions of the crimping machine? The editor of the crimping machine manufacturer will introduce you: 1. The pre-assembly of the card sleeve pipe joint is an important part of Z, which directly affects the reliability of the seal. A special pre-installed device is generally required. Small pipe diameter joints can be pre-assembled on the vise. The specific method is to use a joint body as the mother body, and press the nut and the ferrule onto the pipe. There are mainly ferrule-type straight-through pipe joints, ferrule-end straight-through connectors, ferrule-type three-way pipe joints, etc. The author found that even for the same batch of goods from the same manufacturer, the depth of the tapered holes on these types of joint bodies are often different, resulting in leakage, and this problem is often overlooked. The correct method should be what kind of joint body is used to connect one end of the pipe, and the corresponding connection end is pre-assembled with the same type of joint, so that leakage problems can be avoided to the greatest extent. 2. The end of the pipe should be flush. After the pipe is sawn, it should be smoothed on a grinding wheel and other tools, and the burrs should be removed, cleaned and blown with high-pressure air before use. 3. When pre-installing, try to keep the coaxiality between the pipe and the joint body. If the pipe deflection is too large, it will cause the seal to fail. 4. The pre-installation force should not be too large. The inner blade of the ferrule should be just inserted into the outer wall of the pipe, and the ferrule should not be significantly deformed. When the pipeline is connected, it is assembled according to the specified tightening force. The tightening force of φ6-10mm ferrule is 64-115N, φ16mmr 259N, and φ18mm is 450N. If the ferrule is severely deformed during pre-installation, the sealing effect will be lost.

12-20

2021

Precautions for pre-installation of crimping machine
Precautions for pre-installation of crimping machine

The main points in the development of the crimping machine

The main points in the development of the crimping machine    In any part of the hose crimping machine manufacturing, operations must be carried out in strict accordance with the designed scheme, standards and processing technology to form a standard qualified hose crimping machine product. As we all know, the development cycle of hose crimping machine products is long, and its design time is also long. Coupled with the large manpower, material and financial resources consumed in these two processes, customers' demand for hose crimping machine reliability is also increasing. This also puts pressure on its manufacturing process. The manufacturing process of the crimping machine is likely to have design errors or operator errors. If there is no advanced equipment, perfect materials and appropriate environment, it is difficult to guarantee the ideal state of the finished product of the crimping machine.     The design process of the crimping machine is the key basis to ensure the product function and quality. The production of the crimping machine must be scientifically and reasonably designed to be produced and manufactured, and the final product is formed. In such a process, the crimping machine manufacturer first needs to realize a reasonable conceptual design, fully analyze the actual needs of the customer for the shrinking machine, and clarify the performance of the crimping machine and the needs of the user. The levels are divided and designed.     Secondly, the hose crimping machine manufacturer should also analyze the detailed process of the hose crimping machine product design, including two important links in the improvement of the design by the test of the prototype.     After Z, the development process of the crimping machine must also consider the reliability of the product, and pay attention to the design and production process of the crimping machine product, in order to guarantee the finished product of the crimping machine that meets the needs of users and has perfect functions.

12-19

2021

The main points in the development of the crimping machine
The main points in the development of the crimping machine

Hose Crimping Machine Crimping Hose Method And Hose Hole Requirements

hose crimping machine crimping hose method and hose hole requirements  Requirements for the hose hole of the hose crimping machine:     1. Confirm that there are enough holes and bridges to ensure that the expansion is firm and lasting.     2. The hole diameter after drilling or reaming should be 0.007 (0.18mm) ~ 0.010 (0.25mm) larger than the outer diameter of the pipe used.     3. When replacing the waste pipe in the slotted plate hole, please remove the metal residue and other impurities in the plate hole.     4. Slotting in the plate hole can improve the mechanical strength of the expansion.     5. If conditions permit, it is recommended to finish or roll the inside of the plate hole to achieve a higher surface finish. This can also improve the tensile strength of the hole bridge.     In the processing of copper tube and aluminum fin convection radiator, what are mechanical shrinkage tubes, liquid compression tubes and interference?     In order to ensure close contact between the copper tube and the aluminum heat sink during the production process of the radiator, the copper tube and the aluminum fin should be closely connected together. If you want to string copper pipes on aluminum sheets, the diameter of the copper pipes should be smaller than the inner diameter of the round holes of the aluminum sheets. After wearing, the following two methods can be used to tighten. (1) Liquid compression tube:      The method is to string up the copper tube and aluminum sheet, weld all the header elbows, pass high-pressure liquid (such as water), and when the water pressure is increased to 1200-200kg/cm2, the copper tube is expanded by hydraulic pressure. Large, so that it is in close contact with the aluminum sheet.     This method is simple in process, low in equipment cost, and easy to process. The disadvantage is that it is difficult to guarantee the expansion due to the unevenness of the copper tube wall thickness and the unevenness of the copper material state. In addition, it is difficult to achieve interference. (2) Mechanical crimp hose:     Since the copper tube is in a soft state and the aluminum loose piece is in a hard state, use a mechanical hose crimping machine to force the alloy steel expansion head into the inner diameter of the copper tube with mechanical force, expand the copper tube by 30-40 wires, and shrink the tube The calculation of the amount includes the positive deviation of the outer diameter of the copper tube, the negative deviation of the inner diameter of the aluminum sheet hole, and the distance between the pipes. After Z, in order to ensure the tight coupling of the pipe, a certain amount of expansion is increased. This increased expansion is called the interference amount. The value of the interference must not only ensure the self-shrinkage of the copper tube after mechanical expansion, but also ensure that the tube and the sheet are tightly combined under the action of cold and hot water to reduce thermal resistance and ensure heat transfer.     The mechanical crimping hose can accurately control the expansion, the product consistency is very high, and the effect is very good. It is an advanced technology commonly used all over the world. The disadvantage is that the crimping equipment is strict and the cost is relatively high.

12-17

2021

Hose Crimping Machine Crimping Hose Method And Hose Hole Requirements
Hose Crimping Machine Crimping Hose Method And Hose Hole Requirements

The Importance Of Hydraulic Oil For Hose Crimping Machine Equipment

The importance of hydraulic oil for hose crimping machine equipment     Hydraulic oil is the blood of the hose crimping machine equipment, which plays the role of reporting and converting energy. The accuracy of hydraulic oil selection is directly related to the efficiency and life of the equipment. Its performance is mainly reflected in the following points. The following hydraulic crimping machine is small Edit to analyze: 　　 1. Compatible viscosity, excellent viscosity-temperature characteristics Viscosity is the first factor that needs to be considered when selecting hydraulic oil. Under the same working pressure, if the viscosity is too high, the movement resistance of hydraulic components will increase, and the pipeline pressure drop and power loss will increase; if the viscosity is too low, the volume loss of the oil drum will increase. , The leakage in the assembly is increased, and the oil film of the sliding part is thinned, the supporting ability is lowered, and there are signs of atomization, and it overflows from the exhaust port. 　　2, excellent lubricity (wear resistance) 　　Hydraulic system has a large number of movable parts that need to be lubricated to prevent relatively movable wear, especially hydraulic equipment with higher pressure, which requires much higher anti-wear properties of hydraulic oil. 　　3, excellent antioxidant properties The hydraulic oil will also be oxidized during use. The acidic substances produced by the oxidation of the hydraulic oil will increase the corrosion of metals, and the sludge deposits produced will block the filter and small loopholes, making the installation and equipment abnormal, so it is required to have sophisticated The antioxidant properties. 　　4. Sophisticated anti-rust and anti-corrosion properties 　　The moisture and atmosphere of hydraulic oil in use and the acidic substances produced after oxidation will affect the corrosion of the metal valve core.

12-16

2021

The Importance Of Hydraulic Oil For Hose Crimping Machine Equipment
The Importance Of Hydraulic Oil For Hose Crimping Machine Equipment

Precautions For Pre-Installation Of Crimping Machine

Precautions for pre-installation of crimping machine The crimping machine is one of the main products provided by our company. What are the pre-installation precautions of the crimping machine? The following editor introduces you: 1. The pre-assembly of the card sleeve hose fitting is an important part of Z, which directly affects the reliability of the seal. A special pre-installed device is generally required. Small hose diameter fittings can be pre-assembled on the vise. The specific method is to use a joint body as the mother body, and press the nut and the ferrule onto the hose. There are mainly ferrule-type straight-through pipe joints, ferrule-end straight-through connectors, ferrule-type three-way pipe joints, etc. Even for the same batch of goods from the same manufacturer, the depth of the tapered holes on these types of joint bodies is often different, resulting in leakage, and this problem is often overlooked. The correct method should be, what kind of joint body is used to connect one end of the pipe, and the corresponding connection end is pre-assembled with the same type of joint, so as to avoid leakage problems to the greatest extent. 2. The end of the pipe should be flush. After the pipe is sawn, it should be smoothed on a grinding wheel and other tools, and the burrs should be removed, cleaned and blown with high-pressure air before use. 3. When pre-installing, try to keep the coaxiality between the pipe and the joint body. If the pipe deflection is too large, it will cause the seal to fail. 4. The pre-installation force should not be too large. The inner blade of the ferrule should be just inserted into the outer wall of the pipe, and the ferrule should not be significantly deformed. When the pipeline is connected, it is assembled according to the specified tightening force. The tightening force of φ6-10mm ferrule is 64-115N, φ16mmr 259N, and φ18mm is 450N. If the ferrule is severely deformed during pre-installation, the sealing effect will be lost.

12-15

2021

Precautions For Pre-Installation Of Crimping Machine
Precautions For Pre-Installation Of Crimping Machine

Briefly Describe The Installation And Use Of Crimping Hose Equipment

Briefly describe the installation and use of crimping hose equipment The hose crimping machine, also known as the crimping machine, is a hydraulic equipment used to crimp the hose assembly. It applies the crimping force to the matched metal joint through the mold of the crimping machine, and firmly crimps the metal joint on the supporting construction machinery. Use high-pressure oil pipes or brake pipes, oil pipes, air-conditioning pipes, power pipes on the car. Installation and use method of hose crimping machine: 1. Add 50kg of 46# hydraulic oil at one time (Z is the genuine original oil). 2. Positioner installation: first insert the positioner into the front of the machine head (note: the positioner can be directly inserted into the machine head), and insert the other end plug into the corresponding socket inside the electric control box. 3. Connect the power supply. If you are using a three-phase motor, be careful not to connect it in the reverse direction. 4. After the above procedures are completed, you can start the pressure test. 5. The use of the positioner: press in 1mm more for each reverse rotation, 0.01mm for each forward rotation, and so on, the same specification of hoses and joints, the first metal joint to reach the required pressure, no need to move the positioner , The specification has been pressed all the time, and the result of the compressed data is completely consistent. The hydraulic equipment used to withhold the pipe fitting assembly, which applies the shrinking force of the matched metal joint through the mould of the crimping machine, and firmly withholds the metal joint on the matched high-pressure oil pipe for construction machinery or the brake pipe and engine oil pipe on the automobile. , Air-conditioning pipes, power pipes. Suitable for all kinds of mechanical high and low pressure oil pipes, air pipes, water pipes, cable joints, automobile air conditioning pipes, automobile power steering pipes, oil pipes, gasoline supply pipes, as well as construction accessories, daily hot water pipes, widely used in vehicles, Construction machinery, hydraulic machinery, welding and cutting equipment and other industries.

12-14

2021

Briefly Describe The Installation And Use Of Crimping Hose Equipment
Briefly Describe The Installation And Use Of Crimping Hose Equipment

Analyze the reasons for the large price difference of domestic crimping machines

Analyze the reasons for the large price difference of domestic crimping machines The hydraulic system of the hose crimping machine is an important part of the equipment. It is composed of hydraulic pump, reversing valve, safety valve and so on. Processing reasons Crimping machine manufacturers are reducing the processing technology and processing links to achieve the purpose of reducing costs, causing problems in the use of customers. For example: the pressure parts on the hose crimping machine should be strictly quenched and tempered to refine the crystal lattice and then quenched. Some pressure-bearing parts of low-cost crimping machines are often directly quenched, eliminating the need for quenching and tempering process, and the work piece is severely brittle, causing hidden dangers to the equipment. Reasons for excessive compression of employment costs In order to save money, some low-priced withholding machine manufacturers often do not set up various inspection positions, such as purchase inspection, assembly process inspection, warehousing inspection, and factory inspection, resulting in unstable product quality. Reasons for lack of R&D investment New product development and new technology trial production of some large-scale companies, about 3%-6% of their output value, the investment is very large, and some small companies will not invest a lot of money in research and development, they can only simply do some appearance imitation, resulting in It's insignificant, and the internal quality is very poor. Reasons for inadequate after-sales service Low-priced crimping machines often only sell things at lower prices and neglect after-sales service. Once the equipment fails, it is often unwilling to make the trip due to the fact that this part of the cost is not considered in the price, and it may delay the customer’s use. Cause disputes.

12-11

2021

Analyze the reasons for the large price difference of domestic crimping machines
Analyze the reasons for the large price difference of domestic crimping machines

How to adjust the precision of the control hose crimping machine

How to adjust the precision of the control hose crimping machine The hose crimping machine (also known as hose crimping machine, hose crimping machine, crimping machine, clasping machine, riveting machine, necking machine, etc.) is a hydraulic equipment used to withhold hose assembly, which will be matched with The metal joint is applied with contraction force through the mold of the pipe buckle machine, and the metal joint is firmly buckled on the high pressure oil hose for construction machinery or the brake pipe, engine oil hose, air conditioning hose and power hose of the automobile. The hose crimping machine is suitable for the crimping of various mechanical high and low pressure oil hoses, air hoses, water hoses, cable joints, automobile air conditioning hoses, automobile power steering hoses, oil hoses, gasoline supply hoses, as well as construction accessories and daily hot water hoses. It is widely used Used in vehicles, construction machinery, hydraulic machinery, welding and cutting equipment and other industries. Commonly used hose crimping machines on the market generally use proximity switch-type size adjusters, and there is also a high-end type: numerical control (computer board) digital display size adjustment. I guess you are asking about the size adjuster of the proximity switch. The size adjuster is divided into moving ruler and static ruler The calculation method is: mold closed diameter + adjuster size = Z final crimping diameter For example, if you use a Φ6 mold, the closed end is 15mm, and you want to crimp the tube to 16mm. The position where the moving ruler and the static ruler are both at 0 means that the mold is closed. When it is pressed and pressed by a clockwise rotation, it is 16mm, which is the position from 0 of the moving ruler to 1 of the static ruler. Pressing to 17mm is the position of moving ruler 0 to static ruler 2, and so on. The operation mode is basically the same for different manufacturers.

12-09

2021

How to adjust the precision of the control hose crimping machine
How to adjust the precision of the control hose crimping machine

Operation and maintenance of hose fitting crimping machine

Operation and maintenance of hose fitting crimping machine Pressure adjustment: The maximum pressure of the withholding machine system Z 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). Mold opening speed adjustment: The speed of Dies opening speed is controlled by the diverter valve and adjusted clockwise. The opening speed is increased, and the opening speed is adjusted counterclockwise. The best value is not more than 10Mpa (it has been adjusted before leaving the factory, you can adjust it yourself if necessary). 1. Crimping operation of crimping machine 1. When the crimping machine is used for the first time, it should be crimped 20 to 30 times without load, and it can be used after observing that all parts are normal. 2. When the crimping machine is used in winter, it should be crimped 20 to 30 times without load to increase the oil temperature. 3. Press the open button, after the mold base is opened, select the corresponding mold to install on the mold base according to the specifications of the hose to be crimped, and adjust the micrometer scale. 4. Place the hose with the joint in the proper position in the press head, so that the entire length is crimped at one time. 5. Press the crimping button to execute crimping operation until the crimping head stops crimping and automatically opens the mold. 6. Take out the crimped hose assembly and use a vernier caliper to check the outer diameter of the crimped joint jacket. If it does not match the parameter table, fine-tune the scale of the micrometer until the crimping of the next hose meets the requirements. 2. Pressure tube test example Crimping Ф19mm four-layer steel wire hose (BNTFLEX 4sp standard) From the hydraulic tubing crimping parameter table, it is found that the outer diameter of the Ф19mm four-layer steel wire hose joint jacket is 37mm before crimping and 33.5mm after crimping. The inner diameter of the mold should be Ф33mm, and the corresponding micrometer scale is 3. Install the Ф33mm mold on the mold base, rotate the micrometer scale to 3 places, peel the rubber tube and assemble it with the joint. After the crimping is completed, the outer diameter of the connector jacket is measured to be the crimped value 33.5mm in the crimping parameter table, and then the crimping is completed. If the outer diameter does not match after crimping, trim the micrometer and crimp a hose. When crimping the hose joint: Too much crimping size, the rubber layer in the hose is crushed, causing oil leakage; too small crimping size, causing oil leakage and being flushed out of the joint by hydraulic pressure. Be sure to grasp a reasonable degree of crimping, based on the shrinkage of the inner hole of the connector core, the compression of the national standard connector is 0.1~0.4mm, and the compression of the ordinary connector is 0.1~2mm. Due to the different manufacturers of hoses and joint jackets, for example, most hose manufacturers in the north use GB standards, the south uses 602 standards, and foreign SAE standards. The specific dimensions and materials of hoses and joints in each factory may be different, so the data of the withholding parameter table For reference only, the specific withholding size should be based on the pressure test. Three, pressure pipe matters needing attention 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 tube head. 3. Every time after the work is finished, the eight mold bases must be opened to the degree of Z, so that the spring can be in the opened state and the spring can be maintained, and the oil cylinder is also in the pressure relief state to extend the life of the oil seal. 4. Maintenance of pipe buckling equipment 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.

12-07

2021

Operation and maintenance of hose fitting crimping machine
Operation and maintenance of hose fitting crimping machine
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