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Cooling of exhaust parts and molds for casting

A technology for molds and exhaust parts, which is applied in the direction of manufacturing tools, casting molding equipment, casting molds, etc., and can solve problems such as increased melt pressure, large-scale cooling and exhaust parts, and residues

Active Publication Date: 2015-12-23
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, if a plurality of overflow runners are merged upstream of the cooling exhaust, the melt flowing from each overflow runner collides with each other at the converging portion, causing the pressure of the melt to rise, which may cause damage in the mold. glitch
On the other hand, if the overflow runners are separated up to the cooling exhaust parts, and the melt channels connected from each overflow runner to the cooling exhaust parts are independently formed, the size of the cooling exhaust parts will increase.
In addition, if the size of each melt channel is reduced in order to suppress the increase in the size of the cooling exhaust, the molded piece formed by solidification of the melt in each melt channel will have low rigidity and will break when the product is taken out and remain in the mold , or fall into the cooling tank for rapid cooling of the mold for heat treatment, resulting in a reduction in the utilization of the mold
[0004] In addition, the cooling exhaust is arranged so that the convex and concave portions face the vertical direction, but in this case, the generated burr powder falls to the concave and accumulates on the lower part of the concave
If the mold is closed directly, the burr powder will be sandwiched between the molds, making the mold clamping insufficient, and burrs may be generated in the mold
In addition, the cooling vent needs to be removed for maintenance or replacement, but the burr powder is sandwiched between the molds, so a pit is formed on the mold, and the cooling vent is riveted by the pit, and the cooling vent Difficult to disassemble

Method used

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  • Cooling of exhaust parts and molds for casting
  • Cooling of exhaust parts and molds for casting
  • Cooling of exhaust parts and molds for casting

Examples

Experimental program
Comparison scheme
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no. 1 approach

[0044] figure 1 It is a sectional view showing the casting apparatus of the first embodiment. figure 2 It is a figure which shows the parting surface of a movable mold. and, in figure 1 and figure 2 In the figure, the upper part of the figure is the vertical upper part, and the lower part is the vertical lower part. Casting device 1 is a device for casting, for example, high-pressure die-casting products, such as figure 1 As shown, the casting device 1 includes a mold (casting mold) 10 , an injection mechanism 30 , and a cooling exhaust 40 . The mold 10 has a fixed mold 10A and a movable mold 10B. The fixed mold 10A and the movable mold 10B are opposed to form a cavity 11 corresponding to a desired product shape. The fixed mold 10A is supported by a fixed mold base 13 , and the movable mold 10B is supported by a movable mold base 15 driven by an unillustrated drive mechanism, and moves in a forward and backward direction relative to the fixed mold 10A.

[0045] The inj...

no. 2 Embodiment approach

[0060] Image 6 It is a sectional view showing the casting apparatus of the second embodiment. Figure 7 It is a figure which shows a movable mold from the mating surface side. and, in Image 6 and Figure 7 In the figure, the upper part of the figure is the vertical upper part, and the lower part is the vertical lower part. Casting device 101 is a device for casting, for example, high-pressure die-casting products such as Image 6 As shown, the casting apparatus 101 is roughly configured to include a mold (casting mold) 110 , an injection mechanism 130 , and a cooling exhaust 140 . The mold 110 has a fixed mold 110A and a movable mold 110B, and the fixed mold 110A and the movable mold 110B are opposed to form a cavity 111 corresponding to a desired product shape. The fixed mold 110A is supported by a fixed mold base 113 , and the movable mold 110B is supported by a movable mold base 115 driven by a driving mechanism not shown, and moves in an advancing and retreating dir...

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Abstract

The present invention provides a cooling exhaust unit and a casting mold. The cooling exhaust unit comprises: a cooling exhaust portion that stops the flow of a melt, and a flow path merging portion, which is located upstream of the cooling exhaust unit and connected with a plurality of overflow channels extending from a cavity of the mold.

Description

technical field [0001] The present invention relates to a cooling vent and a casting mold provided with the cooling vent. Background technique [0002] Die-casting products are made by filling the molten metal such as aluminum into the cavity of the mold in a short time and casting it. Therefore, the air in the cavity may be drawn into the molten metal during filling, and a gas defect in which the product contains gas may occur, resulting in deterioration of the quality of the product. As a countermeasure, in general, a plurality of overflow channels for overflowing the melt are connected to the final filling part of the melt in the product part, and a cooling vent is installed at the end of the overflow channel, and the cooling vent only The air in the mold is discharged to the outside of the mold, and the melt is prevented from spraying out of the mold, thereby preventing air from being involved in the product and improving product quality. (For example, refer to JP-A-20...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/06B22D17/22B22D27/04
Inventor 林和弘西村纯一长谷川太郎佐藤谦次
Owner HONDA MOTOR CO LTD