JP2794002B2 - Mold equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a mold apparatus having a feeder forming space.

(Prior art)

In this type of conventional mold apparatus, a feeder forming space is integrally formed with the mold.

[Problems to be Solved by the Invention] However, when the feeder forming space is integrally formed with the mold as described above, the heat conduction of the mold (the portion forming the feeder forming space) is excellent, and the heat retaining property of the feeder is improved. On the other hand, there is a disadvantage that it is not a desirable state.

[Means for solving the problem]

In order to achieve the above object, in a mold apparatus according to the present invention, there is provided a mold apparatus having a feeder forming space communicating with a cavity, wherein in forming the feeder forming space, only a required number of annular mold members are used. Wherein the required number of annular mold members are stacked, and the disk-shaped mold member is placed on the upper surface of the annular mold member arranged at the upper end.

[Effect of the Invention] Since the mold apparatus according to the present invention configured as described above is configured as described above, that is, in configuring the feeder forming space, a required number of annular mold members and only one A disc-shaped mold member, and the required number of annular mold members are stacked and the disc-shaped mold member is placed on the upper surface of the annular mold member arranged at the upper end. Heat conduction becomes difficult.

[Explanation of Example]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As an embodiment of the present invention, a molten metal filtration device for a mold of a vehicle wheel will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a mold device, which is a lower mold 11 and a middle mold.
It is configured by combining 12, a horizontal die 13, an upper die 14, and an upper auxiliary die 141. Reference numeral 2 denotes a cavity of the mold apparatus 1, which has a shape of a vehicle wheel.
Numeral 121 denotes an insert, which is protruded from the middle die 12 and extends into the cavity 2. The insert 121 is for forming a shaft hole of a vehicle wheel. Next, reference numeral 131 denotes a runner, which extends sideways in the horizontal mold 13. The runner 131 is open to the side (rim forming space) of the cavity 2 via the weir 3. The other end of the runner 131 has an opening 4 on the outer surface of the horizontal mold 13. Reference numeral 5 denotes an auxiliary type, which is installed in close contact with the outside of the horizontal type 13. Reference numeral 51 denotes a dome-shaped main space, which is formed inside the auxiliary mold 5 and has an opening 511 on the lower surface of the auxiliary mold 5. Reference numeral 52 denotes a connecting path, which is formed in the auxiliary mold 5 like the main space 51. One end of the connection path 52 is opened in the main space 51 and the other end is opened 521 in the left side surface (in FIG. 1) of the auxiliary mold 5. And
The outer opening 521 of the connecting passage 52 is connected to the outer opening 4 of the runner 131.
And is facing. Therefore, the molten metal in the main space 51 can flow into the runner 131 after passing through the connection path 52. Reference numeral 61 denotes a Stoke auxiliary ring, which is in contact with the peripheral edge of the lower opening 511 of the auxiliary die 5. Reference numeral 62 denotes a Stoke main body, which is provided continuously below the Stoke auxiliary ring 61. The Stoke main body 62 and the Stoke auxiliary ring 61 are integrated to form a so-called “Stoke”. Reference numeral 7 denotes a flat filter, which is sandwiched between the auxiliary mold 5 and the Stoke auxiliary ring 61. The filter 7 has a net shape, and filters the molten metal supplied to the runner changing tool 5 through the stalk 6.

Next, in FIG. 2, reference numeral 142 denotes a fitting hole, which is formed on the upper surface of the center of the upper die 14. This fitting hole 142 communicates with the cavity 2. Reference numerals 81, 82, and 83 denote annular mold members which are inserted into the insertion holes 142 via the gaps S and are sequentially stacked. Here, the inner diameter of the middle annular mold member 82 is larger than the inner diameter of the lower annular mold member 81, and the inner diameter of the upper annular mold member 83 is larger than the inner diameter of the middle annular mold member 82. Also, the inner peripheral surfaces of these annular mold members 81, 82, 83 are formed in a tapered shape whose diameter increases toward the lower end, and the continuous portions on the inner peripheral surfaces of the respective annular mold members 81, 82, 83 are stepped. The shape. this is,
This is to prevent an undercut from occurring even if the annular mold members 81, 82, 83 are moved in the insertion hole 142 by the gap S in the horizontal direction. Reference numeral 84 denotes a board-shaped mold member, which is inserted into the insertion hole 142 via a gap S similarly to the annular mold members 81, 82, and 83. The board-shaped mold member 84 is placed on the upper surface of the annular mold member 83, and forms a feeder forming space A in the inner peripheral portion of the annular members 81, 82, 83. Note that a stepped portion is also formed in the continuous portion between the board-shaped mold member 84 and the annular mold member 83 so that the undercut does not occur as described above. or,
In the plate-shaped mold member 84, 841, 841,...
B, ... are vents (see FIG. 3). 842,831,82
Reference numerals 1,811 denote gas vent grooves, which are formed on the lower surface of the disc-shaped mold member 84 or the annular mold members 81, 82, 83 (see FIGS. 3 and 4; FIG. 3 shows an annular shape). Mold member
85). These grooves 842,831,821,811
Act as vents when stacked (see FIG. 2).

〔The invention's effect〕

A mold apparatus according to the present invention is a mold apparatus provided with a feeder forming space communicating with a cavity, comprising a required number of annular mold members and only a plate-like mold member in configuring the feeder forming space, Since the required number of annular mold members are stacked and the board-shaped mold member is placed on the upper surface of the annular mold member arranged at the upper end, heat conduction is less likely to occur in the mold portion constituting the feeder forming space.

Therefore, if this mold device is used, it is possible to secure a state in which the feeder is excellent in heat retention.

In the mold apparatus of the present invention, the contact surfaces between the annular mold members and the contact surfaces between the annular mold member and the plate-shaped mold member can be used as gas vents during pouring, and the annular mold member and the plate-shaped mold can be used. Since the members can be moved independently, if the members can be moved in the installed state, it is possible to easily break the molten metal film by applying vibration.

[Brief description of the drawings]

 FIG. 1 is a cross-sectional view of an embodiment of a mold apparatus according to the present invention, FIG. 2 is an enlarged cross-sectional view of a part II in FIG. 1, FIG. The figure is a bottom view of the annular mold member in FIG. 2 ... cavity S ... riser forming space 81 ... annular mold member 82 ... annular mold member 83 ... annular mold member 84 ... board-shaped mold member

Claims (1)

(57) [Claims] 1. A mold apparatus having a feeder-forming space communicating with a cavity, comprising: a required number of annular mold members and a sole plate-shaped mold member; A mold device wherein the annular mold members are stacked and the board-shaped mold member is placed on the upper surface of the annular mold member arranged at the upper end.