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External extrusion device

A technology of extrusion device and extrusion die, applied in the direction of metal extrusion mandrel, etc., can solve the problems of high cost, increase the length of the frame, complex structure, etc. The effect of frame stiffness

Inactive Publication Date: 2019-02-19
常州市邹区蔬菜产业发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The built-in mechanical positioning needle needs to increase the perforating moving beam, and at the same time increase the length of the frame, which increases the cost and cost. Due to space constraints, it is difficult to maintain and overhaul, and it is impossible to realize real-time adjustment of the mechanical limit of the perforating needle.
[0004] The external piercing system has a piercing cylinder, piercing moving beam, piercing frame, etc., and the mechanical needle positioning is realized through the external piercing system. This method is expensive and complex in structure.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] This embodiment provides an external extrusion device, such as figure 1 and 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 block 16 and an extrusion die 17, and the described 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 block 16 and an extrusion die 17 are installed inside the piercing cylinder 13 along its axial direction;

[0020] 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 gear assembly. ...

Embodiment 2

[0024] 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.

[0025] 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

[0029] The support 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. The outer lower part of the fixed sleeve 3 is connected to the support wheel by a connecting piece. , the supporting wheel falls on the perforation system guide rail 9.

[0030] The support assembly 2 is located at the outer end of the gear assembly, and a fastening bolt 1 is arranged at the outer end of the support assembly 2 , and the fastening bolt 1 is installed at the end of the perforated piston rod 8 .

[0031] A chain rubber 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 chain rubber hose 7. The chain rubber hose 7 looks like a tank chain and is composed of many unit links. The links can rotate freely, th...

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Abstract

The invention provides an external extrusion device. The external extrusion device comprises a perforating piston rod, a limiting sleeve, a master cylinder, a perforating cylinder, a perforating needle, an aluminum block and an extrusion die. The external extrusion device can be used for both small and medium-sized presses and large-sized presses, the mechanical limiting position of the perforating needle can be adjusted in real time according to technological requirements; the perforating system is internally provided, and a mechanical needle fixing part is externally provided, so that the length of an extruder frame is reduced, the frame rigidity is improved, maintenance can be conveniently carried out, and the equipment cost is also reduced.

Description

technical field [0001] The invention relates to the technical field of extrusion equipment, in particular to the field of external extrusion devices. Background technique [0002] The mechanical fixed pin technology is an effective method to extrude and produce seamless aluminum tubes with high inner surface quality. At present, there are two methods of mechanical fixed pin extrusion, one is built-in mechanical fixed pin, and the other is out-of-band Built-in perforation system. [0003] The built-in mechanical positioning needle needs to increase the perforating moving beam, and at the same time increase the length of the frame, which increases the cost and cost. Due to the limited space, it is difficult to maintain and overhaul, and it is impossible to realize the real-time adjustment of the mechanical limit of the perforating needle. [0004] The external piercing system has a piercing cylinder, a piercing beam, a piercing frame, etc., and the mechanical needle positioni...

Claims

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Application Information

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IPC IPC(8): B21C23/20B21C25/04
CPCB21C23/20B21C25/04
Inventor 石琴芬
Owner 常州市邹区蔬菜产业发展有限公司
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