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Conjoined Bending Pin Telescoping Device of Hydraulic Bending Mechanism

A technology of hydraulic bending and telescopic devices, which is applied in the direction of fluid pressure actuators, mechanical equipment, servo motor components, etc., to achieve good control effects

Active Publication Date: 2016-06-22
冯广建
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in view of the above problems, the original telescopic valve structure needs to be improved

Method used

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  • Conjoined Bending Pin Telescoping Device of Hydraulic Bending Mechanism
  • Conjoined Bending Pin Telescoping Device of Hydraulic Bending Mechanism
  • Conjoined Bending Pin Telescoping Device of Hydraulic Bending Mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] refer to figure 1 , a conjoined bending pin telescoping device of a hydraulic bending mechanism provided by the present invention includes a telescoping device 1, an upper gland 2 and a lower gland 3 are respectively arranged at both ends of the telescoping device 1, and a plunger chamber 5 is arranged inside the telescoping device , the plunger cavity 5 is provided with a plunger telescopic pin 4, the front end of the plunger telescopic pin 4 passes through the upper gland 2, and the middle part of the plunger telescopic pin 4 is provided with a convex ring 41, and the diameter of the convex ring 41 is the same as that of the plunger cavity 5. The inner diameter of the plunger cavity 5 is divided into an upper cavity 51 and a lower cavity 52 by the protruding ring 41, wherein the axial pressure area of ​​the plunger telescopic pin 4 in the upper cavity 51 is smaller than that in the lower cavity 52. pressure area.

[0026] One side of the retractor 1 is provided with ...

Embodiment 2

[0031] refer to Figure 6 , The structure of the second embodiment provided by the present invention is basically the same as that of the first embodiment, the difference is that there is no connecting oil passage 54 between the upper chamber 51 and the lower chamber 52 of this embodiment. Since there is no connecting oil passage 54 in this embodiment, when resetting, the oil medium first pushes the plunger telescopic pin 4 to reset downward to make it retract, and then enters the bending oil cylinder to complete the resetting of the turntable. After removing the connecting oil passage 54, the reset action of the conjoined bending pin telescopic device is faster and can complete the fast bending action. Therefore, the conjoined bending pin telescopic device of this embodiment is mainly used in single elbows or bends of high-speed bending steel bars Two elbow steel bending machine.

[0032]Compared with the telescopic valve in the existing invention patent "A Linked Telescopic...

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PUM

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Abstract

The invention discloses a one-piece bent pin expansion and contraction device of a hydraulic bending mechanism. The one-piece bent pin expansion and contraction device comprises an expansion and contraction device, wherein a plunger cavity is formed in the expansion and contraction device; a plunger expansion and contraction pin is movably arranged in the plunger cavity; a convex ring matched with the inner diameter of the plunger cavity is arranged in the middle of the plunger expansion and contraction pin and divides the plunger cavity into an upper cavity and a lower cavity; a first oil nozzle and a second oil nozzle are arranged on the expansion and contraction device; the first oil nozzle is connected with the plunger cavity through an opening A and an opening B; the second oil nozzle is connected with the plunger cavity through an opening C and an opening D; an oil discharging opening is formed in one side of the expansion and contraction device; an oil discharging channel formed in the plunger cavity is connected with the upper cavity and the oil discharging opening; when the plunger expansion and contraction pin extends out, the oil discharging opening is opened; when the plunger expansion and contraction pin extends to maximum, the oil discharging opening is closed. The one-piece bent pin expansion and contraction device disclosed by the invention is good in control effect; the hydraulic bending mechanism adopting the one-piece bent pin expansion and contraction device can complete operation in sequence in a quality guaranteeing manner, and a successful bending process is guaranteed.

Description

technical field [0001] The invention relates to a steel bar processing device, in particular to a conjoined bending pin telescopic device of a hydraulic bending mechanism. Background technique [0002] A large number of steel bars and stirrups processed from steel bars are widely used in modern construction projects. Steel bars are usually stored and transported in the form of coils. Before use, they must be straightened, cut to length, and some of them need to be bent. Processing steps. [0003] The invention patent previously applied by the applicant "A linkage telescopic valve applied to the bending mechanism of the steel bar forming machine" (patent application number is 201310048541.7) discloses a telescopic valve structure applied to the steel bar bending machine, which can effectively Control the expansion and contraction of the telescopic pin so that it forms a certain order with the action of the bending cylinder, which is convenient for bending operation. For exam...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02B21F1/00
CPCB21F1/00F15B13/02
Inventor 冯广建
Owner 冯广建