CN211990878U

CN211990878U - Gating system of center gate of die-casting die

Info

Publication number: CN211990878U
Application number: CN202020499800.3U
Authority: CN
Inventors: 何敏
Original assignee: Suzhou Union Precision Metal Products Co ltd
Current assignee: Suzhou Union Precision Metal Products Co ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2020-11-24
Anticipated expiration: 2030-04-08

Abstract

The utility model relates to a casting system of die casting die center runner, the nozzle passes through the sprue and connects die casting die cavity of die casting die, the sprue is shunted through the spreader to form two and is fed and runner and be connected with the ingate of casting die cavity, the cross section area of sprue to feed runner reduces gradually, the pipeline wall thickness both ends of feed runner are thin and middle thick, the wall thickness is symmetrically designed with the pipeline axis of feed runner as the central line to one side of feed runner close to the spreader and one side of feed runner far away from the spreader, the feed runner forms a section of circular arc pipeline near the ingate along with its cross section reduces gradually, because the utility model discloses a wall thickness is symmetrical design, alloy liquid flows steadily among the casting system, does not have the roll up gas, the phenomenon of breathing in, and speed increases gradually, the alloy liquid that reachs the ingate has higher flow speed, in actual die-casting, the defects of pores, shrinkage cavities and layering of the die-cast casting are eliminated.

Description

Gating system of center gate of die-casting die

Technical Field

The utility model relates to a machine-building field especially relates to a gating system of die casting die center runner.

Background

Some die castings select the scheme that a central gate is more favorable for sequentially filling alloy liquid in a die-casting die cavity than a side inner gate, and also favorable for smooth exhaust, the surface quality and the internal air hole quality of the die-cast castings are excellent, the size of the die-casting die can be reduced by selecting the central gate, the remelting quantity of a pouring system is reduced, and the die-casting cost is saved.

Disclosure of Invention

The utility model aims at providing a can control the work piece the deformation and stabilize the gating system of die casting die center gate of machining dimension.

For realizing above-mentioned technical purpose, the utility model discloses a following technical scheme, a gating system of die casting die center runner, the nozzle passes through the sprue and connects die casting die's foundry goods die cavity of sprue, the sprue is connected with the inner gate of foundry goods die cavity through the reposition of redundant personnel awl reposition of redundant personnel formation two feeds, the sprue reduces gradually to the sectional area of feeding the sprue again to the sprue, the pipeline wall thickness both ends of feeding the sprue are thin and middle thick, the one side of feeding the sprue and pressing close to the reposition of redundant personnel awl is rather than the pipeline axis of feeding the sprue as central line symmetry design wall thickness of keeping away from one side of reposition of redundant personnel awl, the feed is watered and is being close to one section circular-arc pipeline of sprue department formation along with its sectional area reduces.

Preferably, the gating system of the center gate is arranged on one side of a fixed die of the die-casting die.

Preferably, the connecting end of the feed runner with the ingate is directly aligned with the ingate.

Preferably, the feeding runner and the ingate are parallel to each other, and because the alloy liquid is directly sprayed from the ingate to the cavity on one side of the fixed die and filled in the deep part on one side of the fixed die, the gas in the deep cavity of the fixed die is effectively discharged.

The nozzle of the utility model is connected with the casting cavity of the die casting die through the sprue which is divided by the sprue spreader to form two feeding runners connected with the inner sprue of the casting cavity, the sectional area of the sprue spreader to the feeding runners is gradually reduced, the two ends of the wall thickness of the pipeline of the feeding runners are thin and thick in the middle, the wall thickness of the pipeline of the feeding runners is symmetrically designed by taking the axis of the pipeline of the feeding runners as the central line of one side of the feeding runners close to the sprue spreader and one side of the feeding runners far away from the sprue spreader, the feeding runners form a section of circular arc pipeline near the inner sprue along with the gradual reduction of the sectional area, the angle of the circular arc pipeline is more than 120 degrees, because the wall thickness of the utility model is a symmetrical design, the alloy liquid flows stably in the casting system, the phenomenon of air entrainment and air suction is avoided, the speed is gradually increased, casting gas pocket, shrinkage cavity and layering defect that the die-casting came out have all been eliminated, simultaneously because the utility model discloses the turning radian of watering has been restricted to the feeding for the feeding is watered and is long again steady, and the effect of acceleration rate and direction is better.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an embodiment of the present invention.

In the figure: 1. a sprue; 2. a casting cavity; 3. a spreader cone; 4. a feed runner; 5. and an inner gate.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be understood that the terms "mounted," "connected," and "connected" are used in a broad sense and can be, for example, mechanically or electrically connected, or can be connected by two elements through internal communication, either directly or indirectly via an intermediate medium. The specific meaning of the above terms can be understood by those of ordinary skill in the art as appropriate.

The utility model discloses a die casting die center gate's gating system is described below with reference to fig. 1, the nozzle passes through sprue 1 and connects die casting die's foundry goods die cavity 2, sprue 1 divides the reposition of redundant personnel through reposition of redundant personnel awl 3 and forms two and feeds runner 4 and be connected with the ingate 5 of foundry goods die cavity 2, sprue 1 to feeding runner 4 and then the sectional area of ingate 5 reduces gradually, the pipeline wall thickness both ends of feeding runner 4 are thin and middle thick, the one side of feeding runner 4 that the sprue 4 is pressed close to reposition of redundant personnel awl 3 rather than keeping away from reposition of redundant personnel awl 3 one side with the pipeline axis of feeding runner 4 as the central line symmetry design wall thickness, the angle of feeding runner 4 is greater than 120 at being close to ingate 5 department and forming one section circular-arc pipeline along.

Preferably, the connecting end of the feed runner 4 to the in-gate 5 is directly aligned with the in-gate 5.

In the description herein, references to the description of "one embodiment," "an example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a gating system of die casting die center runner, including the nozzle, its characterized in that, the nozzle passes through the sprue and connects die casting die's foundry goods die cavity of sprue, the sprue is shunted through the reposition of redundant personnel awl and is formed two and feed the runner and be connected with the ingate of foundry goods die cavity, the sprue reduces gradually to the cross-sectional area of ingate again to the sprue, the pipeline wall thickness both ends of feeding the runner are thin and middle thick, the one side that feeds the runner and press close to the reposition of redundant personnel awl rather than keep away from the side of reposition of redundant personnel awl with the pipeline axis of feeding the runner as the central line symmetry design wall thickness, the angle of feeding the runner and forming one section circular-arc pipeline.

2. The center gated gating system of a die casting mold as claimed in claim 1, wherein the center gated gating system is provided on a stationary mold side of the die casting mold.

3. The die casting mold center gated gating system of claim 1, wherein the connection end of the feed runner and the in-gate is directly aligned with the in-gate.

4. The die casting mold center gated gating system of claim 3, wherein the feed runner and the ingate are parallel to each other.