External type mechanical fixed needle extruding device and method
An extrusion device, an external technology, applied in the field of metal extrusion equipment, can solve the problems of increasing the length of the frame, high cost, complex structure, etc. Effect
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Embodiment 1
[0026] This embodiment provides an external mechanical fixed needle extrusion device, such as figure 1 with figure 2 As shown, it includes a perforated piston rod 8, a limit sleeve 10, a main cylinder 12, a perforated cylinder 13, a perforated needle 15, an aluminum ingot 16 and an extrusion die 17, and the main cylinder 12 is fixedly installed on the extruder frame 14 Above, the main cylinder 12 is fitted with a piercing cylinder 13, a limit sleeve 10 is installed at one end of the main cylinder 12, and an aluminum ingot 16 and an extrusion die 17 are installed inside the piercing cylinder 13 along its axial direction;
[0027] One end of the perforated piston rod 8 is fixedly connected with the perforated needle 15, and one end of the perforated piston rod 8 on which the perforated needle 15 is installed passes through the spacer sleeve 10, the master cylinder 12 and the perforated cylinder 13 successively, and the other end of the perforated piston rod 8 is sleeved with g...
Embodiment 2
[0031] This embodiment is further detailed on the basis of Embodiment 1. The gear assembly set on the perforated piston rod 8 includes a hydraulic motor 4, a small gear 5 and a large gear 6. The inner ring of the large gear 6 is provided with threads, which are screwed on the On the perforated piston rod 8, the outer ring of the large gear 6 is two stepped surfaces, and the two stepped surfaces are respectively provided with gear teeth and bushings, the hydraulic motor 4 is fixed on the bushing, and the pinion gear 5 is fixed on the output shaft of the hydraulic motor 4 , the gear teeth of the pinion 5 and the bull gear 6 outer ring mesh.
[0032] In the present invention, the limit function formed by the cooperation between the gear assembly and the limit sleeve 10 is a very critical part, and it is a necessary part to realize that the needle head stops when it enters a certain position of the mold. In this embodiment, as the perforating needle 15 advances , the hydraulic mot...
Embodiment 3
[0036] The support wheel assembly 2 includes a fixed sleeve 3 and a support wheel that are set on the perforated piston rod 8. The inner wall of the fixed sleeve 3 and the outer wall of the perforated piston rod 8 are locked and anti-rotated by a flat key in the circumferential direction, and the outer and lower parts of the fixed sleeve 3 are connected and installed by connecting pieces. Support wheels, which fall on the perforation system guide rail 9.
[0037] The supporting wheel assembly 2 is located at the outer end of the gear assembly, and a locking nut 1 is arranged at the outer end of the supporting wheel assembly 2, and the locking nut 1 is installed at the end of the perforated piston rod 8 .
[0038] The towline hose 7 is also installed on the guide rail 9 of the perforation system. The control cable of the hydraulic motor 4 is installed in the towline hose 7. The towline hose 7 looks like a tank chain and is composed of many unit links. The links can rotate freely...
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