A multi-stack mold pouring system

Abstract

The utility model discloses a kind of multiple stack model pouring systems in casting technical field, including sprue cup. The lower end of sprue cup is connected with cross runner in the middle, multiple distribution passages are symmetrically connected with the front and rear sides of cross runner, distribution passage and cross runner are at certain angle. The end of each distribution passage is connected with straight runner downward. Multiple vertically stacked cavities are provided between the front and rear corresponding two straight runners, multiple inner gates are provided at interval in the side of straight runner, and the inner gate is correspondingly provided and communicated with each layer cavity. The utility model realizes multilayer synchronous pouring by symmetrical distribution structure, effectively eliminates molten iron splashing defect and reduces temperature difference, significantly improves casting forming quality and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of casting technology, and in particular to a multi-stack mold casting system. Background Technology

[0002] In the foundry industry, pouring molten iron into multiple molds is an important and common process. Currently, the industry generally uses a method of pouring the molten iron one stack at a time through pouring cups. This traditional pouring method has significant drawbacks. Firstly, during the pouring process, molten iron can splash into other molds. Because this splashed molten iron cools first, it cannot fuse with the molten iron poured in later, leading to product defects and affecting product quality and performance.

[0003] On the other hand, because the molten iron is poured in stacks, there is a significant temperature difference between the later-poured and earlier-poured molten iron. This temperature difference makes the later-poured molten iron more susceptible to instability during solidification, easily leading to defects such as porosity and cracks, further reducing the product yield. Therefore, there is an urgent practical need to develop a multi-stack model pouring system that can avoid molten iron splashing and reduce the temperature difference between the molten iron and the mold. Utility Model Content

[0004] The main objective of this invention is to provide a multi-stack model casting system to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A multi-stacked model casting system includes a sprue cup. A horizontal sprue is centrally connected to the lower end of the sprue cup. Multiple runners are symmetrically connected to the front and rear sides of the horizontal sprue, forming an angle with the horizontal sprue. Each runner's end is connected downwards to a sprue. Multiple vertically stacked cavities are provided between corresponding sprues. Multiple ingates are spaced apart on the sides of the sprues, and these ingates are correspondingly positioned and connected to each cavity layer.

[0007] Furthermore, each straight pouring channel is equipped with a riser at the top.

[0008] Furthermore, each of the left and right ends of the horizontal sprue is provided with a first cold molten iron storage area, and each of the vertical sprues is provided with a second cold molten iron storage area at the bottom.

[0009] Furthermore, the runner is set horizontally, and the angle between the runner and the horizontal gating is 120°.

[0010] This invention also includes other components that enable the multi-stack model casting system to function properly, and these devices or components all employ conventional techniques in the art. Furthermore, devices and components not limited in this invention all employ conventional techniques in the art, such as the pouring cup mentioned in this application. In specific implementation, appropriate device or component models can be selected according to the specific working scenario.

[0011] The working principle of this invention is as follows: After molten iron is poured from the pouring cup, it first enters the central horizontal sprue and is symmetrically distributed to both sides through horizontal runners at a 120° angle. After entering each sprue along the runners, the molten iron is simultaneously poured into the multi-layered vertically stacked cavities through multiple spaced ingates in a bidirectional manner. During this process, the 120° runner design combined with the symmetrical structure ensures equal pressure in each runner, the risers continuously discharge gas from the cavities, the first cold molten iron storage area collects the low-temperature molten iron at the end of the horizontal sprue, and the second cold molten iron storage area receives the cold molten iron at the bottom of the sprues. The multi-layered cavities are filled synchronously from bottom to top.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. Synchronous casting of multiple stacked models was achieved: Through the isobaric distribution design of 120° horizontal flow channels and symmetrical structure, the multi-layer cavity is filled synchronously from bottom to top, avoiding cold shut defects caused by molten iron splashing.

[0014] 2. Improved casting quality: The multi-layer vertical cavity with bidirectional pouring and riser venting design simultaneously improves casting density and molding efficiency. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention.

[0016] Figure 2 This is a top view of the present invention.

[0017] Figure 3 This is the left view of the present invention.

[0018] In the diagram: 1. Pour cup; 2. Stream runner; 3. Runner; 4. Sprue; 5. Ingate; 6. Cavity; 7. Riser; 8. First chilled molten iron storage area; 9. Second chilled molten iron storage area. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Example:

[0021] like Figures 1-3As shown, a multi-stack model casting system includes a pouring cup 1. A horizontal sprue 2 is centrally connected to the lower end of the pouring cup 1. Multiple runners 3 are symmetrically connected to the front and rear sides of the horizontal sprue 2, forming a certain angle with the horizontal sprue 2. Each runner 3 has a downward-facing sprue 4 at its end. Multiple vertically stacked cavities 6 are provided between corresponding sprues 4. Multiple ingates 5 are spaced apart on the sides of the sprues 4, and the ingates 5 are correspondingly positioned and connected to each layer of cavity 6.

[0022] Specifically, the runner 3 is set horizontally, and the angle between the runner 3 and the horizontal gating 2 is 120°.

[0023] In addition, each sprue 4 is provided with a riser 7 at the top. Each end of the horizontal sprue 2 is provided with a first chilled molten iron storage area 8, and each sprue 4 is provided with a second chilled molten iron storage area 9 at the bottom.

[0024] The working principle of this multi-stack mold casting system is as follows: After molten iron is poured from the pouring cup 1, it first enters the central horizontal sprue 2, and is symmetrically distributed to both sides through the horizontal runners 3 at a 120° angle. After the molten iron enters each sprue 4 along the runners 3, it is simultaneously poured into the multi-layered vertically stacked cavities 6 through multiple spaced inlets 5 in a two-way manner. During this process, the 120° runner design combined with the symmetrical structure ensures equal pressure in each runner, the risers 7 continuously discharge gas from the cavity, the first cold molten iron storage area 8 collects the low-temperature molten iron at the end of the horizontal sprue 2, and the second cold molten iron storage area 9 receives the cold molten iron at the bottom of the sprues 4. The multi-layered cavities 6 are filled synchronously from bottom to top.

[0025] The above embodiments are merely descriptions of preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope of the present utility model.

Claims

1. A multi-stack model casting system, comprising a pouring cup (1), characterized in that: The lower end of the pouring cup (1) is connected to a horizontal runner (2). The horizontal runner (2) is symmetrically connected to multiple branch runners (3) on both the front and rear sides. The branch runners (3) and the horizontal runner (2) form a certain angle. Each branch runner (3) is connected to a sprue (4) at its end. Multiple vertically stacked cavities (6) are provided between two corresponding sprues (4). Multiple ingates (5) are spaced apart on the side of the sprue (4). The ingates (5) are correspondingly set and connected to each layer of cavity (6).

2. The multi-stack model casting system according to claim 1, characterized in that: Each straight gating channel (4) is equipped with a riser (7) at the top.

3. The multi-stack model casting system according to claim 1, characterized in that: Each of the horizontal gating channel (2) has a first cold molten iron storage area (8) at both the left and right ends, and each vertical gating channel (4) has a second cold molten iron storage area (9) at the bottom.

4. The multi-stack model casting system according to claim 1, characterized in that: The runner (3) is set horizontally, and the angle between the runner (3) and the horizontal gating (2) is 120°.

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