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Lubricating method between melting cup and injection punch of die casting machine

A technology of injection punch and die-casting machine, which is applied in the field of injection lubrication of die-casting machines, can solve problems affecting the internal quality of die-casting parts, etc., and achieve the effects of improving service life, sufficient lubrication, and reducing the amount of gas and impurities

Active Publication Date: 2021-11-05
PUTIAN RONGXING MECHANICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this lubrication method, due to the excessive concentration of the lubricant, when the aluminum water is poured into the melting cup, it will burn immediately, producing gas and impurities (that is, "carbon collection"); due to the rapid advancement of the injection punch, these gases and impurities will Injected into the cavity of the mold, seriously affecting the internal quality of die castings

Method used

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  • Lubricating method between melting cup and injection punch of die casting machine
  • Lubricating method between melting cup and injection punch of die casting machine
  • Lubricating method between melting cup and injection punch of die casting machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1: Please refer to figure 2 and Figure 4 , a method for lubricating between a melting cup and an injection punch of a die-casting machine, the die-casting machine includes an injection device, the injection device includes a melting cup and an injection punch that are slidably fitted to each other, and the melting cup The side wall is provided with a lubricating oil passage, and the lubricating oil passage includes a lubricating oil groove located on the inner wall of the melting cup. A starting position is set in the melting cup, and the injection punch covers all the lubricating oil when it is at the starting position. oil tank;

[0045] Described lubricating method comprises the following steps:

[0046] S11. Control the injection punch to be at the initial position, and at this time, all the lubricating oil grooves are covered by the injection punch;

[0047] S12. Lubricating oil is pressurized and delivered to the injection punch through the lubricatin...

Embodiment 2

[0055] Example 2: Please refer to figure 1 and image 3 , a method for lubricating between a melting cup and an injection punch of a die-casting machine, the die-casting machine includes an injection device, the injection device includes a melting cup and an injection punch that are slidably fitted to each other, and the melting cup The side wall is provided with a lubricating oil passage, and the lubricating oil passage includes a lubricating oil groove located on the inner wall of the melting cup. The first starting position, the second starting position and the ending position are arranged in the melting cup in sequence. The injection When the punch is in the first initial position, part of the lubricating oil groove (such as one of the multiple lubricating oil grooves) is exposed, and the injection punch covers all the lubricating oil grooves when it is in the second initial position;

[0056] Described lubricating method comprises the following steps:

[0057] S11, cont...

Embodiment 3

[0070] Example 3: Please refer to Figure 1 to Figure 4 , a lubrication method for a double-pressure shot cold chamber die-casting machine,

[0071] The double-shot cold chamber die-casting machine includes a horizontal injection device 100 and a vertical injection device 200;

[0072] The horizontal injection device 100 includes a horizontal melting cup 110 and a horizontal injection punch 120 that are slidingly fitted with each other, and the lubrication method between the horizontal melting cup 110 and the horizontal injection punch 120 adopts the above-mentioned implementation Any one of the two lubricating methods of example one and embodiment two;

[0073] The vertical injection device 200 includes a vertical melting cup 210 and a vertical injection punch 220 that are slidably fitted to each other, and the lubrication method between the vertical melting cup 210 and the vertical injection punch 220 adopts the above-mentioned implementation Any one of the two lubricating...

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Abstract

The invention discloses a lubricating method between a melting cup and an injection punch of a die casting machine. The lubricating method comprises the following steps that S11, the injection punch is controlled to be positioned at an initial position, and all lubricating oil grooves are covered by the injection punch at the moment; S12, lubricating oil is pressurized and conveyed to the injection punch through a lubricating oil channel, and the lubricating oil overflows to the movement front of the injection punch through a gap between the outer peripheral wall of the injection punch and the inner peripheral wall of the melting cup; S13, molten metal is poured into the melting cup; S14, the injection punch is controlled to perform injection action, and the metal liquid in the melting cup is injected out, so that the lubricating oil lubricates the inner peripheral wall of the melting cup and the outer peripheral wall of the injection punch when the injection punch injects the molten metal; and S15, the injection punch is controlled to return to the initial position. According to the lubricating method, the lubricating effect is good, the service life of the melting cup and the injection punch is prolonged, the tendency that gas and impurities generated by combustion of the lubricating oil are mixed into molten metal can be reduced, and the quality of die castings is improved.

Description

technical field [0001] The invention belongs to the technical field of injection lubrication methods for die-casting machines, and in particular relates to a lubrication method between a melting cup and an injection punch of a die-casting machine. Background technique [0002] At present, the lubricant of the injection punch is usually dropped into the melting cup or the granular lubricant is sent into the melting cup before pouring the aluminum water. In this lubrication method, due to the excessive concentration of the lubricant, when the aluminum water is poured into the melting cup, it will burn immediately, producing gas and impurities (that is, "carbon collection"); due to the rapid advancement of the injection punch, these gases and impurities will It is injected into the cavity of the mold, which seriously affects the internal quality of the die casting. Therefore, it is necessary to improve the lubrication method between the injection punch and the melting cup. C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D17/20
CPCB22D17/2038Y02P70/10
Inventor 吴奕鑫吴玉荣吴建成王志锋郑福建
Owner PUTIAN RONGXING MECHANICAL
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