CN217570811U

CN217570811U - Anti-erosion die-casting die pouring structure

Info

Publication number: CN217570811U
Application number: CN202221153646.XU
Authority: CN
Inventors: 喻良冰; 陈花
Original assignee: Chongqing Tengzeng Mould Manufacturing Co ltd
Current assignee: Chongqing Tengzeng Mould Manufacturing Co ltd
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2022-10-14
Anticipated expiration: 2032-05-13

Abstract

The utility model discloses an erosion-proof die-casting die pouring structure, which belongs to the technical field of dies, the utility model discloses a pouring gate is vertically arranged in the center of an upper die, and two sides of the pouring gate are communicated with a shunting hole and a pipeline, so as to achieve the purpose of buffering, and effectively relieve the erosion phenomenon of molten metal to a die-casting die cavity; the lower part of the upper die is provided with the shunt cone which is convenient to replace and is provided with the annular settling tank, so that the situation that the shunt hole and the pipeline are blocked due to the fact that particles contained in molten metal enter the shunt hole and are cooled in the pipeline can be prevented, the smoothness of the flowing of the molten metal is further guaranteed, meanwhile, the erosion phenomenon of the molten metal to the intersection of the pouring gate and the shunt hole can be effectively relieved, and the service life of the die-casting die is further prolonged.

Description

Anti-erosion die-casting die pouring structure

Technical Field

The utility model relates to the technical field of molds, in particular to die casting structure who prevents erosion.

Background

Die casting is a precise casting method, which is a precise casting method that uses high pressure to force molten metal into a metal mold with a complex shape. The die casting production is widely applied, and the common small parts such as camera parts, typewriter parts, electronic computing devices and ornaments and the complex parts of vehicles such as automobiles, locomotives and airplanes are mostly manufactured by die casting. The die-casting die is one of main elements of die-casting production, and the die with correct and reasonable structure and reasonable design of a runner system is a prerequisite for smooth die-casting production and plays an important role in ensuring the quality of castings. Specifically, the molten metal filling time is extremely short, the specific pressure and the flow rate of the molten metal are high, the working condition of the die-casting die is extremely poor, and the impact action of alternating stress of chilling and heating greatly influences the service life of the die.

In some existing die-casting dies, a pouring gate is generally directly communicated with a cavity, and because molten metal has the characteristics of high temperature and high speed in an entering stage, the molten metal can erode the internal structure of the cavity under the influence of the characteristics, so that the cavity is seriously eroded, and the service life of the die-casting die is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a die casting structure of erosion prevention has alleviated the erosion phenomenon of molten metal to the die casting die cavity effectively to further improve die casting die's life.

In order to solve the technical problem, the utility model discloses a technical scheme:

the anti-erosion casting structure of the die-casting die comprises an upper die, a lower die and a cavity formed between the lower part of the upper die and the upper part of the lower die;

a pouring gate is vertically arranged at the right center of the upper die, two sides of the bottom end of the pouring gate are communicated with shunting holes, and the shunting holes are communicated with a pipeline communicated with the die cavity;

the sprue gate is provided with a sprue gate, a sprue gate is arranged on the sprue gate, and a sprue gate is arranged on the sprue gate.

According to some embodiments, the conduit is serpentine.

According to some embodiments, the pipeline is a straight pipe, and the corner where the branch hole is communicated with the pipeline is an arc-shaped chamfer.

According to some embodiments, the lower mold is internally provided with an annular pipe.

According to some embodiments, the liquid inlet and the liquid outlet of the annular duct are opened on the same side of the lower mold.

According to some embodiments, the spout is threaded with a feed tube.

According to some embodiments, the feed pipe top is provided with a lid.

Has the beneficial effects that:

1. the utility model provides a die casting structure of erosion prevention is through being provided with the sprue gate at the inside perpendicular of the center of last mould, has diffluence hole and pipeline in the both sides intercommunication of sprue gate to reach the purpose of buffering, alleviated the erosion phenomenon of molten metal to the die casting die cavity effectively.

2. The sprue spreader has the advantages that the sprue spreader which is convenient to replace and is provided with the annular settling tank is arranged at the lower part of the upper die, so that the sprue spreader and the pipeline can be prevented from being blocked after particles contained in molten metal enter the sprue spreader and the pipeline and are cooled, the flowing smoothness of the molten metal is further ensured, meanwhile, the erosion phenomenon of the molten metal to the intersection of the sprue gate and the sprue spreader can be effectively relieved, and the service life of the die-casting die is further prolonged.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic view of a first embodiment of the present invention;

fig. 2 is a schematic view of a second embodiment of the present invention;

fig. 3 is a partial sectional view of the lower mold of the present invention.

In the figure, 1 upper mould, 11 pouring gate, 12 diffluence holes, 13 pipelines, 2 lower mould, 21 annular pipelines, 211 liquid inlet, 212 liquid outlet, 3 mould cavities, 4 diffluence cones, 41 annular settling tank, 5 feeding pipes and 51 cover body.

Detailed Description

This section will describe in detail the embodiments of the present invention, the preferred embodiments of which are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can visually and vividly understand each technical feature and the whole technical solution of the present invention, but it cannot be understood as a limitation to the scope of the present invention.

In the description of the present invention, it should be understood that the directional descriptions, such as the directions or positional relationships indicated by upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present invention, the terms greater than, less than, exceeding, etc. are understood to exclude the number, and the terms above, below, inside, etc. are understood to include the number. If there is a description of first and second for the purpose of distinguishing technical features only, this is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 3, the anti-erosion casting structure of the die casting mold includes an upper mold 1, a lower mold 2, and a cavity 3 formed between a lower portion of the upper mold 1 and an upper portion of the lower mold 2.

The pouring gate 11 has been seted up perpendicularly to the positive central point department of going up mould 1, and the bottom both sides of pouring gate 11 all communicate there is the diffluence hole 12, and the diffluence hole 12 intercommunication has the pipeline 13 that is linked together with the die cavity 3 for molten metal can loop through diffluence hole 12 and pipeline 13, until molten metal flows into the die cavity 3, and the diffluence hole 12 forms a region that lets molten metal cushion with pipeline 13 simultaneously, can alleviate the direct erosion phenomenon to the die casting die cavity of molten metal effectively.

The sprue spreader 4 is detachably arranged at the center of the lower part of the upper mold 1, the sprue spreader 4 is positioned under the sprue gate 11, the annular sedimentation groove 41 is formed in the sprue spreader 4, the erosion phenomenon of the molten metal at the position of the intersection of the sprue gate 11 and the sprue gate 12, even if the molten metal generates serious erosion phenomenon on the sprue spreader 4, the sprue spreader 4 can be replaced timely, the annular sedimentation groove 41 formed in the sprue spreader 4 can achieve the effect of precipitating impurities contained in the molten metal, the sprue spreader 4 can be taken out conveniently to clean the impurities in the annular sedimentation groove 41, meanwhile, the smooth flowing of the molten metal can be ensured, the situation that the sprue spreader 12 and the pipeline 13 are blocked due to the fact that the impurities contained in the molten metal flow to the sprue gate 12 and the pipeline 13 are cooled internally is avoided, and the service life of the die-casting mold is further prolonged.

In some embodiments, as shown in fig. 1, the pipeline 13 is in a serpentine shape, when the molten metal enters from the pouring gate 11, under the action of the spreader cone 4, the molten metal will have a buffering phenomenon, and the pipeline 13 is set to be in a serpentine shape, so that the molten metal can move at a slow speed first, and when the molten metal enters the pipeline 13, the molten metal can perform an accelerated movement.

Combine as shown in fig. 2, in other embodiments, pipeline 13 is the straight tube, and the corner that reposition of redundant personnel hole 12 and pipeline 13 are linked together is the arc chamfer, when molten metal enters from sprue gate 11, under the effect of reposition of redundant personnel awl 4, the phenomenon of a buffering then can appear in the molten metal, set up pipeline 13 into the straight tube, make the molten metal can do the slow motion earlier, enter into the speed that the improvement molten metal that pipeline 13 can be further enters into the inside of die cavity 3 when the molten metal, wherein, the arc chamfer can play the effect of a buffering, when having avoided the great impact force of molten metal, cause the erosion phenomenon to pipeline 13 bottom.

As shown in fig. 3, an annular pipe 21 is provided inside the lower mold 2, and the annular pipe 21 is filled with cooling liquid, so that the cooling liquid can cool the molten metal in the cavity 3, and the molten metal can be rapidly cooled and molded.

As further shown in fig. 3, the liquid inlet 211 and the liquid outlet 212 of the annular duct 21 are opened at the same side of the lower mold 2, so that the annular duct 21 can achieve the effect of cooling the molten metal in the cavity 3 in a circulating manner to the maximum extent.

Referring to fig. 1, the feeding pipe 5 is screwed to the spout 11 to prevent the spout 11 from corroding during the flow of molten metal.

Referring further to fig. 1, a cover 51 is provided on the top of the feeding pipe 5 to prevent inflammable and explosive particles from entering the pouring gate 11 and causing unnecessary accidents.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge range of those skilled in the art.

Claims

1. Anti-erosion die casting die pouring structure, its characterized in that includes: the mould comprises an upper mould (1), a lower mould (2) and a cavity (3) formed between the lower part of the upper mould (1) and the upper part of the lower mould (2);

a pouring gate (11) is vertically arranged at the right center of the upper mold (1), two sides of the bottom end of the pouring gate (11) are communicated with shunting holes (12), and the shunting holes (12) are communicated with a pipeline (13) communicated with the cavity (3);

the sprue spreader comprises a sprue gate (11), a sprue spreader body, a sprue spreader runner (4), a sprue spreader runner (4) and an annular settling tank (41), wherein the sprue spreader runner (4) is detachably arranged in the center of the lower portion of the upper mold (1), and the sprue spreader runner (4) is located under the sprue gate (11).

2. Anti-erosion die casting mold casting structure according to claim 1, characterized in that the duct (13) is serpentine-shaped.

3. The anti-erosion die-casting die casting structure according to claim 1, wherein the pipeline (13) is a straight pipe, and corners where the shunting holes (12) are communicated with the pipeline (13) are arc-shaped chamfers.

4. The anti-erosion die-casting die casting structure according to claim 1, wherein an annular pipeline (21) is arranged inside the lower die (2).

5. The erosion-resistant die-casting mold casting structure as claimed in claim 4, wherein the liquid inlet (211) and the liquid outlet (212) of the annular duct (21) are opened at the same side of the lower mold (2).

6. Anti-erosion die casting mold casting structure according to claim 1, characterized in that the inlet pipe (5) is threaded at the gate (11).

7. Erosion-resistant die casting mold casting structure according to claim 6, characterized in that the top of the feed pipe (5) is provided with a lid (51).