CN113134593A

CN113134593A - Aluminum casting die-casting die

Info

Publication number: CN113134593A
Application number: CN202010062098.9A
Authority: CN
Inventors: 聂运尧; 聂凌志
Original assignee: Kunshan Xulong Prec Machinery Co ltd
Current assignee: Kunshan Xulong Prec Machinery Co ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2021-07-20

Abstract

The invention provides an aluminum casting die-casting die, which comprises a male die plate, a male die core, a female die plate and a female die core, wherein a cavity for molding is formed by the male die core and the female die core after the die is assembled, a pouring system is arranged in the female die plate and comprises a main pouring channel, a cross pouring channel and a plurality of branch pouring channels, a circular insert is arranged at the same side of the side edge of the male die plate and the pouring system, a plurality of inner pouring gates for filling the weak part of a casting are arranged on the male die plate, metal in the branch pouring channels flows in through the inner pouring gates, a sliding block is arranged on the male die plate, and a fixing column for shaping a casting hole is fixed on the sliding block. The invention optimizes the gating system of the whole mould and ensures the quality of the relatively weak part formed on the casting and the quality of the whole casting.

Description

Aluminum casting die-casting die

Technical Field

The invention relates to the technical field of die-casting molds, in particular to an aluminum casting die-casting mold.

Background

Pressure casting is a special casting method which is developed faster in the modern metal processing technology and has less cutting and no cutting. The method is a process of filling a casting mold with molten metal at high pressure and high speed, and crystallizing and solidifying the molten metal at high pressure to form a casting. The pressure casting method has the advantages of high production efficiency, simple process, high tolerance grade of castings, good surface roughness, high mechanical strength, capability of saving a large number of machining processes and equipment, raw material saving and the like, so the method becomes an important component in the casting industry of China.

The die casting process is a process of organically combining and comprehensively using three major elements of a die casting machine, a die casting mold and an alloy. The process of filling the cavity with metal during die casting is a process of unifying technological factors such as pressure, speed, temperature, time and the like. Meanwhile, the process factors influence each other, restrict each other and complement each other. Only by properly selecting and adjusting these factors to be in harmony, the desired results can be achieved.

The die casting mold is one of the most important devices for implementing the die casting process, and the gating system is one of the most important structures in the die casting mold. The selection of the liquid inlet for filling the casting system into the mold cavity is highly regarded at the beginning of the design of the die casting mold. The mould all has the weak department of shaping when die-casting shaping, needs more metal liquid to fill, consequently need set up the inlet in weak department and just can guarantee that the product of pouring out meets the requirements. However, the die-casting die generally only has one pouring gate, and only one of a plurality of weak positions can be selected as a liquid inlet, so that the technical problem which needs to be solved by the invention is how to optimally design a pouring system of the die-casting die to ensure the quality of two forming weak positions which are far away from each other on a casting.

Disclosure of Invention

The purpose of the invention is: the aluminum casting die-casting die is provided, a pouring system of the whole die is optimized, and the quality of a relatively weak part formed on a casting and the quality of the whole casting are guaranteed.

The technical scheme is as follows: the utility model provides an aluminum casting die, includes public template, public mould benevolence, cavity board and cavity mould benevolence, public mould benevolence and cavity mould benevolence form after the mould compound die and are used for fashioned die cavity, be provided with the gating system in the cavity board, the gating system includes that main runner, horizontal runner and a plurality of divide water, public template side and gating system homonymy department are provided with circular mold insert, be provided with the ingate that a plurality of goes on filling to the weak department of foundry goods on the public template, divide the metal of watering to flow in through the ingate, be provided with the slider on the public template, be fixed with the fixed column of stereotyping to the foundry goods hole on the slider.

Preferably, the cross section of the branch pouring channel is an inverted isosceles trapezoid, and the cross section area from the inlet to the tail end of the branch pouring channel is gradually reduced.

Preferably, a slag collecting ladle is arranged on the side, different from the side of the pouring system, of the male template, and the bottom of the slag collecting ladle is connected with an exhaust groove.

Preferably, the straight line of the fixed column in the length direction is perpendicular to the straight line of the cross gate in the length direction.

Preferably, the slider is internally provided with a heat conducting member.

The invention realizes the following beneficial effects:

according to the invention, the plurality of branch runners are arranged in the male template, so that molten metal flowing in the transverse runner enters the cavity through the branch runners, the metal in the branch runners flows into other casting weak parts through the plurality of ingates, the weak parts of the castings are synchronously filled, the shrinkage of the castings is prevented in the die-casting process, and the overall quality of the castings is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic structural diagram of a mother template provided by the present invention.

Fig. 2 is a schematic view of a part of the structure provided by the present invention.

In the figure: 1. a male template; 2. a core insert; 3. a master template; 4. a cavity insert; 5. a pouring system; a main runner; 52. a cross gate; 53. dividing a pouring channel; 6. a circular insert; 7. an inner gate; 8. a slider; 9. fixing a column; 10. collecting a slag ladle; 11. an exhaust groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 2, an aluminum casting die-casting die comprises a male die plate 1, a male die core 2, a female die plate 3 and a female die core 4, wherein the male die core 2 and the female die core 4 form a cavity for molding after the die is assembled, a gating system 5 is arranged in the female die plate 3, the gating system 5 comprises a main runner 51, a cross runner 52 and a plurality of branch runners 53, metal flows into the branch runners 53 from the cross runner 52 and is subjected to die-casting of a casting, so that the metal flow of the casting is balanced during die-casting, and the quality of the die-casting of the casting is ensured; a circular insert 6 is arranged at the same side of the side edge of the male template 1 with the gating system 5, a plurality of inner gates 7 for filling the weak parts of the castings are arranged on the male template 1, and metal in the branch pouring channels 53 flows in through the inner gates 7 to fill the weak parts of the castings, so that the overall casting quality of the castings is improved; the male die plate 1 is provided with a slide block 8, and when the die is opened, the slide block 8 is drawn out from the side edge, so that the subsequent demoulding of the casting is facilitated; and a fixing column 9 for shaping the casting hole is fixed on the sliding block 8.

The cross section of the branch pouring gate 53 is an inverted isosceles trapezoid, and the area of the cross section from the inlet of the branch pouring gate 53 to the tail end is gradually reduced, so that the heat dissipation of the casting is enhanced.

A slag collecting ladle 10 is arranged on the side, different from the side of the pouring system 5, of the male template 1, and the metal slag generated in the pouring process is collected in the slag collecting ladle 10 in a flowing mode, so that the metal slag is prevented from remaining in a die casting; the bottom of the slag collecting bag 10 is connected with an exhaust groove 11.

The straight line of the fixed column 9 in the length direction is perpendicular to the straight line of the cross gate 52 in the length direction.

And a heat-conducting piece is arranged in the sliding block 8, so that the cooling speed of the hole formed in the casting is improved.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an aluminum casting die, includes public template, public mould benevolence, cavity and cavity benevolence, its characterized in that, public mould benevolence and cavity benevolence form the die cavity that is used for the shaping after the mould compound die, be provided with the gating system in the cavity, the gating system includes that main watering, cross gate and a plurality of divide water, public template side and gating system homonymy department are provided with circular mold insert, be provided with the ingate that a plurality of filled the weak department of foundry goods on the public template, divide the metal of watering to flow in through the ingate, be provided with the slider on the public template, be fixed with the fixed column of stereotyping the foundry goods hole on the slider.

2. An aluminium casting die as claimed in claim 1 wherein the cross section of the branch runner is an inverted isosceles trapezoid and the cross sectional area tapers from the inlet to the tip of the branch runner.

3. The die-casting die for the aluminum castings according to claim 1, wherein a slag collection ladle is arranged on the side of the male die plate different from the side of the gating system, and an exhaust groove is connected to the bottom of the slag collection ladle.

4. An aluminium casting die casting mould as claimed in claim 1, wherein the line of the fixed post length direction is perpendicular to the line of the runner length direction.

5. An aluminium casting die casting mould as claimed in claim 1, wherein the slide block has a thermally conductive member mounted therein.