Structural Features of the Disc-Type DX Series Crimping Machine

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 design, inability to achieve independent operation of various systems due to numerous oil lines, short service life of sealing rings, and frequent oil leaks. Thanks to the composite cylinder technology, the crimping head, hydraulic system, and electrical control box—the three major systems—can operate independently from one another, making maintenance and replacement straightforward and convenient. Moreover, after the crimping head is separated, it can be easily returned to the factory for long-term warranty service.

Its characteristics:

(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 located 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 each adjacent pair of mold block units remains uniformly consistent at all times.

(2) The front retaining ring adopts a separable tapered sleeve structure. This resolves the contradiction between achieving both high material strength and high material hardness after heat treatment. As a result, the critical components of this locking mechanism not only exhibit high hardness, minimal deformation, and excellent wear resistance, but also allow the tapered sleeve—as a wear-prone part—to be resurfaced or replaced, thereby extending the service life of both the mechanical components and their precision. Consequently, the roundness, taper, and clamping dimension accuracy of the crimped products can consistently remain within highly precise specifications.

(3) The internal sealing rings of the hydraulic cylinder are made of imported polyurethane and ST-type Gela rings, which can withstand high pressure and have a long service life. Key hydraulic system components are sourced from imported suppliers.

(4) In terms of the electrical control system, the control circuit uses an integrated printed circuit board, making circuit maintenance and replacement convenient.

(5) In terms of clamping dimension control, the displacement control principle is employed, and a graduated adjuster is used to precisely regulate the clamping dimensions. This allows the clamping dimensions to be directly correlated with the scale readings indicated by the graduated adjuster, achieving an accuracy of 0.01 mm. During the clamping operation, the process is easy to control, eliminating the previous method of adjusting system pressure to control clamping dimensions—a method that suffered from inaccuracies due to factors such as varying working times, temperature fluctuations, material hardness, and tolerance levels. Moreover, this approach has replaced the earlier clamping method that required empirical data for operation.