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A pressurized hydraulic cylinder injection force adjustment device

A technology of hydraulic cylinder and force adjustment, applied in the field of die-casting machines, can solve the problems of insufficient extrusion exhaust and inconvenient adjustment of injection force, and achieve the effect of convenient adjustment of injection force, improvement of die-casting quality, and quality assurance

Active Publication Date: 2018-08-21
NINGBO ZITAI PRECISION MCAHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention overcomes the inconvenient adjustment of the injection force of the injection mechanism of the die-casting machine, and the slow-speed injection of the injection piston rod can not completely extrude and exhaust the material, and provides a pressurized hydraulic cylinder injection force adjustment device, which can be used for injection of the die-casting machine. The output is easy to adjust, and the injection piston rod is injected at a slow speed to squeeze and exhaust the material thoroughly, ensuring the quality of the die-casting parts

Method used

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  • A pressurized hydraulic cylinder injection force adjustment device
  • A pressurized hydraulic cylinder injection force adjustment device
  • A pressurized hydraulic cylinder injection force adjustment device

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Embodiment 1: A pressurized hydraulic cylinder injection force adjustment device (see attached figure 1 , attached figure 2 , attached Figure 4 ), including a T-shaped hydraulic cylinder 1, the hydraulic cylinder includes a small-diameter cylinder body 2 and a large-diameter cylinder body 3, a T-shaped injection piston rod 4 is installed in the small-diameter cylinder body, and a T-shaped booster cylinder is installed in the large-diameter cylinder body Piston rod 5, the injection piston cylinder divides the small-diameter cylinder body into a booster chamber 6 and an oil outlet chamber 7, the small-diameter end of the injection piston rod extends out of the small-diameter cylinder body, and the pressurized piston rod separates the large-diameter cylinder body into a drive oil chamber 8 and an oil outlet chamber 7 The back pressure adjustment chamber 9, the back pressure adjustment chamber and the pressurization chamber arranged close to each other are two independen...

Embodiment 2

[0023] Embodiment 2: A pressurized hydraulic cylinder injection force adjustment device (see attached image 3), its structure is similar to that of Embodiment 1, the main difference is that the shaft drive mechanism in this embodiment includes a drive motor, and the drive motor includes rotor poles 23 and stator windings 24, the rotor poles are movably installed in the joint body, and the stator windings are set in the joint Outside the body, the rotor poles and the stator windings are arranged correspondingly, and the rotor poles are fixedly connected to the rotating shaft. Other structures are the same as in Embodiment 1.

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Abstract

The invention discloses a pressure boosting type hydraulic cylinder jetting force adjusting device which aims at overcoming the shortcomings that the jetting force of a press-shooting mechanism of a die-casting machine is inconvenient to adjust, and extrusion and exhausting are not sufficient enough due to the fact that materials are slowly jetted out through a jetting piston rod. The pressure boosting type hydraulic cylinder jetting force adjusting device comprises a T-shaped hydraulic cylinder, the hydraulic cylinder comprises a small-diameter cylinder body and a large-diameter cylinder body, the T-shaped jetting piston rod is installed in the small-diameter cylinder body, and a T-shaped pressure boosting type piston rod is installed in the large-diameter cylinder body; the small-diameter cylinder body is divided into a pressure boosting cavity and an oil outlet cavity through a jetting piston cylinder, the small diameter end of the jetting piston rod extends out of the small-diameter cylinder body, and the large-diameter cylinder body is divided into a drive oil cavity of a backpressure adjusting cavity; the backpressure adjusting cavity and the pressure boosting cavity which are close to each other are two independent cavities, the small diameter end of the pressure boosting piston rod extends into the pressure boosting cavity, and an oil via hole for communicating the pressure boosting cavity and the drive oil cavity is arranged in the pressure boosting piston rod; and a check valve is installed in the oil via hole, the backpressure adjusting cavity is communicated with a backpressure storage device, and a drive oil cavity is communicated with the backpressure storage device.

Description

technical field [0001] The invention relates to the field of die-casting machines, in particular to a booster hydraulic cylinder injection force regulating device. Background technique [0002] The die-casting machine is a series of industrial casting machines that hydraulically inject molten metal into the mold for cooling and forming under pressure, and obtain solid metal castings after the mold is opened. The injection mechanism is an important part of the die casting machine. Through the design of the oil circuit, high pressure die casting can be realized. The injection force of the traditional injection mechanism can only be adjusted by charging and discharging nitrogen or increasing and reducing pressure at the total pressure end, which is inconvenient to adjust, and the slow injection of the injection piston rod is not thorough enough to squeeze and exhaust the material. Contents of the invention [0003] The invention overcomes the inconvenient adjustment of the i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D17/20
CPCB22D17/2023
Inventor 湛松镇
Owner NINGBO ZITAI PRECISION MCAHINERY