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Working Principle of the Crimping Machine – Tube Crimping Operation Methods and Maintenance & Repair
2021-12-20 11:06
The English name for a crimping machine is typically translated as "crimping machine" or "crimper." A crimping machine is a hydraulic device used to crimp pipe assemblies. It applies compressive force through the machine’s dies to securely crimp metal fittings onto high-pressure hydraulic hoses used in construction machinery or on automotive brake lines, oil lines, air-conditioning lines, and power lines. Crimping machines are suitable for crimping various types of mechanical high- and low-pressure oil hoses, air hoses, water hoses, cable connectors, automotive air-conditioning lines, power steering lines, oil lines, fuel lines, as well as construction fittings and daily-use hot-water and gas pipes. They are widely used in industries such as automotive, construction machinery, hydraulic machinery, and welding and cutting equipment.
Introduction to the Quality Control and Traceability System for Intelligent Crimping Machines
2021-12-14 16:24
The system is developed based on the concept of intelligent manufacturing and can automatically compensate for processing errors in products with uncontrollable tolerances, monitor the machining process, enable online traceability of the machining process, and provide screening and alerting functions for products that may harbor potential quality risks.
Structural Features of the Disc-Type DX Series Crimping Machine
2021-12-06 11:24
The DX series disc-type crimping machine employs composite cylinder technology with independently owned intellectual property rights. This technology overcomes the drawbacks of conventional crimping machines that rely on multiple auxiliary small cylinders—namely, complex structural designs, inability to achieve independent operation of various systems due to numerous oil lines, short service life of sealing rings, and frequent oil leaks. The composite cylinder technology enables the crimping head, hydraulic system, and electrical control box—the three major subsystems—to operate independently, making maintenance and replacement straightforward and facilitating the return of the crimping head to the factory for long-term warranty service after separation. Its key features are as follows: (1) The locking mechanism adopts a blade-disc structure. Each mold block unit is inserted into a disc-shaped groove. As it moves together with the piston inside the cylinder, it works in conjunction with the retaining ring at the front of the cylinder, causing the inclined surfaces on each mold block unit to converge under the action of centripetal force. The spacing between adjacent mold block units remains consistently uniform. (2) The front retaining ring features a separable conical sleeve design, resolving the conflict between high material strength and high hardness after heat treatment. As a result, the critical components of the locking mechanism not only exhibit high hardness, minimal deformation, and excellent wear resistance, but also allow the conical sleeve to be easily ground or replaced as a wear part, thereby extending the mechanical lifespan and maintaining precise mechanical accuracy over a longer period. Consequently, the roundness, taper, and dimensional accuracy of the crimped products remain consistently within high-precision tolerances. (3) The internal sealing rings of the cylinder are made of imported polyurethane and ST-type grid rings, offering high pressure resistance and long service life. Key hydraulic system components are sourced from imported manufacturers. (4) In terms of the electrical control system, the control circuit utilizes an integrated printed circuit board, making circuit maintenance and replacement convenient. (5) For controlling the crimping dimensions, the displacement control principle is employed, using a scale-adjustable regulator to precisely set the crimping size. This allows the scale values indicated by the regulator to directly correspond to the actual crimping dimensions, achieving an accuracy of up to 0.01 mm. During crimping operations, the process is easy to control, eliminating the previous method of adjusting system pressure to regulate crimping dimensions—a method prone to inaccuracies caused by factors such as varying working times, temperature fluctuations, material hardness, and tolerance levels. Moreover, this approach removes the need for operators to rely on empirical data when performing crimping operations.
Brand-new SDX series air springs and shock absorber-specific crimping machine for auto parts
2021-11-29 11:53
The SDX-110Z split-type (dual-speed single-bevel model) is a crimping machine that incorporates composite cylinder technology with independent intellectual property rights. This technology overcomes the drawbacks of conventional crimping machines that rely on multiple auxiliary small cylinders—namely, complex structural designs, inability to achieve complete system independence due to numerous oil lines, short service life of sealing rings, and frequent oil leaks. The composite cylinder technology enables the crimping head, hydraulic system, and electrical control box—the three major systems—to operate independently, and also facilitates easy separation of each system for return to the factory, where they can enjoy long-term warranties. Features: (1) During the crimping process, the die holder drives the crimping die solely in a radial direction without any axial movement. This ensures precise control over the crimping position when crimping hose assemblies. With the inclusion of a positioning device that works seamlessly with both automatic and semi-automatic operation modes, this model is particularly well-suited for large-scale production of crimped products. (2) The die pressing seat, or die holder, employs a guided sliding structure, which compensates for the uneven spacing of dies caused by fatigue deformation of the support springs over prolonged use. This eliminates the need for frequent replacement or adjustment of the springs. (3) Since the die holder is equipped with two differently inclined bevel surfaces, it achieves two distinct speeds during its expansion and contraction movements. This not only increases the crimping force but also enhances the crimping speed, while simultaneously extending the stroke range of the die holder’s expansion and contraction. (4) The die installation utilizes a T-slot structure, and the die positioning now features a long-life spring-loaded ball mechanism. This design not only ensures reliable operation but also allows the operator to first insert the hose assembly connector into the crimping area before inserting the die itself, making it ideal for crimping ultra-large, specially shaped bends and non-standard connectors. (5) In terms of crimping dimension control, the machine employs the displacement control principle, using a graduated scale adjuster to precisely regulate the crimping dimensions. The scale values indicated by the adjuster correspond directly to the actual crimping dimensions, achieving an accuracy of up to 0.01 mm. (6) The SDX-110 crimping machine incorporates imported insert-type hydraulic check valves and relief valves in its hydraulic system, and it has increased both the pump flow rate and motor power. As a result, the crimping speed of the machine has been significantly boosted. The electrical control section offers both automatic and semi-automatic crimping functions, fully meeting the diverse needs of the automotive parts and hydraulic industries.
Precautions for using a pipe crimping machine
2021-11-25 11:56
The crimping machine manufacturer produces and designs tube-reducing equipment, which is primarily used as hydraulic machinery for crimping pipe fittings assemblies. This equipment applies compressive force through the crimping machine’s dies to the matched metal connectors, securely crimping them onto various types of hoses—including rubber hoses, oil hoses, flexible hoses, air hoses, steel pipes, iron pipes, aluminum pipes, and copper pipes. Whether the crimping machine is operated correctly and appropriately directly affects the quality of the crimping process. Below are some operational precautions that everyone should share: 1. Only designated personnel are permitted to operate the crimping machine; during normal operation, the machine must be turned off and left unattended when personnel leave. 2. Always follow the operating procedures strictly. 3. Before each startup, add lubricating oil according to the lubrication chart—timing, location, and quantity—and ensure the oil is clean and free of sediment. 4. The crimping machine must be kept clean at all times; parts that are not painted should be coated with rust-preventive grease. 5. Lubricating oil in the motor bearings must be replaced and replenished regularly, and the electrical components should be checked frequently to ensure they are functioning properly and safely. 6. Regularly inspect the V-belts, handles, knobs, and buttons for damage. If any parts show severe wear, replace them promptly and report the replacements to the maintenance department. 7. Periodically check and repair switches, fuses, and handles to ensure their reliable operation. Ensuring the proper and regular use of the crimping machine is a critical issue. Correct operation of the crimping machine is key to both technical maintenance and fault prevention. It is essential to adopt a field management philosophy of “maintenance instead of repair,” emphasizing “scientific principles,” “mandatory compliance,” and “predictability” to proactively prevent problems before they occur and avoid minor faults from escalating into major issues. Regularly lubricate and clean the crimping machine, and conduct periodic inspections of the equipment to guarantee its smooth operation and extend its service life.
Advantages of the Second-Generation SDX Series Crimping Machine (Pipe Locking Machine)
2021-03-02 13:10
The SDX-90Z (dual-speed single-surface model) is a crimping machine that incorporates composite cylinder technology with independently owned intellectual property rights. This technology overcomes the drawbacks of conventional crimping machines that rely on multiple auxiliary small cylinders—namely, complex structural designs, difficulties in achieving independent operation of various systems due to numerous oil lines, short service life of sealing rings, and frequent oil leaks. The composite cylinder technology enables the crimping head, hydraulic system, and electrical control box—the three major systems—to operate independently, and also facilitates easy separation of these systems for return to the factory, where they can enjoy long-term warranties. Its key features are as follows: (1) During the crimping process, the die holder drives the crimping die solely in a radial direction without any axial movement. This precise control of the crimping position ensures accurate alignment when crimping hose assemblies. Combined with positioning devices and automatic or semi-automatic operating modes, this design is particularly well-suited for large-scale production of crimped products. (2) The die pressing seat, which serves as the die holder, employs a guided sliding structure. This compensates for the uneven spacing of dies caused by fatigue deformation of the support springs within the die holder over prolonged use, thereby eliminating the need for frequent replacement or adjustment of the springs. (3) Since the die holder is equipped with two differently inclined surfaces, it achieves two distinct speeds during its expansion and contraction movements. This not only increases the crimping force but also enhances the crimping speed, while simultaneously extending the travel range of the die holder’s expansion and contraction. (4) The die installation utilizes a T-slot structure, and the die positioning now relies on long-life spring-loaded ball bearings. This not only ensures reliable operation but also allows the operator to first insert the hose assembly connector into the crimping area before inserting the die itself, making it ideal for crimping ultra-large, specially shaped bends and non-standard connectors. (5) In terms of crimping dimension control, the machine employs the displacement control principle, using a graduated scale adjuster to precisely regulate the crimping dimensions. The scale values indicated by the adjuster correspond directly to the actual crimping dimensions, achieving an accuracy of up to 0.01 mm. (6) The SDX-90Z crimping machine incorporates imported insert-type hydraulic check valves and relief valves in its hydraulic system, and it has increased both the pump flow rate and motor power. As a result, the crimping speed of the machine has been significantly boosted. The electrical control section features both automatic and semi-automatic crimping functions, fully meeting the diverse needs of the automotive parts and hydraulic industries.
Application of Intelligent Crimping Machines—An Introduction to the Production Process of High-Pressure Hose Assemblies
2021-02-19 19:51
The high-pressure hose assembly is an essential component of construction machinery equipment. Its quality, sealing performance, cleanliness, and precision directly affect the operational safety of the entire equipment after installation; therefore, special attention must be paid when selecting such components. Hazards of oil leakage from high-pressure hose assemblies: First, it results in wastage of hydraulic fluid in the system; second, oil leakage can cause a drop in operating pressure within the hose, thereby reducing operational efficiency; third, hydraulic oil is highly flammable—once leaked and exposed to high temperatures or open flames, it could easily ignite, leading to serious consequences. Hazards of contamination in high-pressure hose assemblies: As critical transmission components, high-pressure hose assemblies transport hydraulic fluid from one piece of equipment to another. If the inside of the hose is contaminated, the fluid flowing through it will also become contaminated, carrying these contaminants into subsequent components. This increases the burden on the filtration system and may even lead to blockage of the filter elements, impairing the hydraulic fluid’s ability to function properly and ultimately halting the entire operation. The entire production process of high-pressure hose assemblies consists of seven steps: Step 1: Selection of high-quality hoses and fittings—a crucial step to ensure the safe performance of the high-pressure hose assembly. Step 2: CNC cutting—high precision and conducted entirely without contact with the ground, thus avoiding contamination. Step 3: Thorough cleaning of both the outer surface and inner cavity of the hose to remove dust and impurities, while simultaneously performing seamless stripping of the adhesive layer. Step 4: Intelligent CNC crimping of the hose assembly—during processing, real-time pressure curves are monitored, and the assembly undergoes steel-ball testing to ensure that the inner diameter does not shrink after crimping. Step 5: 100% static pressure testing to confirm that the actual working pressure the hose assembly can withstand matches its rated pressure. Step 6: Sealing of the end fittings of the high-pressure hose assembly—to prevent dust and contaminants from entering during storage and transportation. Step 7: Application of a hose identification system for marking and labeling directly onto the hose body, enabling quality traceability and allowing users to check the application scenario, compatible media, and warranty period.
Installation and Debugging Procedure for Pipe Pressing Machines
2020-02-22 12:35
Which brand offers the best cable crimping machine? Nowadays, pipe crimping machines used for cable crimping rely on hydraulic transmission. This process requires precise control over the magnitude of the pressure applied. The pressure must be kept within a specific operating range. If the pressure is too low, the crimping machine won't be able to perform the crimping job satisfactorily; conversely, if the pressure is too high, it will put undue stress on the equipment and potentially damage it. So how can we ensure that the pressure remains within the set allowable range? Experts from Changdong Machinery point out that hydraulic pressure gauges are an excellent solution for this purpose. With digital displays, these gauges provide a more intuitive and clear visualization of the pressure readings, making it easy to monitor and maintain the pressure at the desired level.
