Casting pouring device

Abstract

The utility model discloses a casting pouring device which comprises a casting and a cross gate communicated with the casting, the cross gate is communicated with a sprue, a residue filtering block is arranged at the joint of the sprue and the cross gate, and the upper portion and the lower portion of the residue filtering block both extend out of the sprue. By means of the mode, the casting pouring device can effectively avoid slag through the slag filtering block 3, slag of molten iron is prevented from flowing into a casting, contact between hot molten iron and molding sand is reduced, and sand holes and slag holes of the casting are reduced.

Description

Technical Field

[0001] The utility model relates to the field of casting, in particular to a casting pouring device. Background Art

[0002] Castings are divided into small, medium and large castings. It is a great challenge to cast medium and large castings (volume greater than 1m3). Such castings are produced by resin sand casting. Almost all castings produced by sand casting lines now have more or less sand holes, slag holes and other problems. And for castings with a high drop, it is more likely to occur. Because the pouring system of the sand core casting molding line needs to be in direct contact with the molding sand. In the process of hot molten iron filling the molding sand, the hot molten iron will more or less collapse the molding sand, resulting in sand holes in the casting. The hot molten iron will chemically react with the molding sand product, the product slag, and the molding casting will produce slag holes. However, with the development of society, the manufacturing industry has higher and higher requirements for the appearance of castings. The traditional pouring system has been difficult to meet the increasing appearance requirements of castings.

[0003] The existing pouring system solution is that the hot molten iron passes through the pouring basin and the sprue. It is directly filled in the horizontal runner on the horizontal parting surface, and finally enters the casting cavity through the ingrowth. During the entire filling process, the hot molten iron flushes the molding sand in the runner. In this process, there is a high probability that the product will have sand holes and chemical reaction slag holes, which will affect the appearance of the casting. Summary of the invention

[0004] The main technical problem solved by the utility model is to provide a casting pouring device, which can effectively avoid slag through the slag filtering block, prevent the slag of molten iron from flowing into the casting, reduce the contact between hot molten iron and molding sand, and reduce the occurrence of sand holes and slag holes in the casting.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a casting pouring device, including a casting and a cross runner connected to the casting, the cross runner is connected to a straight runner, and a filter block is provided at the connection between the straight runner and the cross runner, and the upper and lower parts of the filter block both extend out of the straight runner.

[0006] In a preferred embodiment of the present invention, the length of the lower part of the filter residue block extending out of the sprue is greater than the length of the upper part of the filter residue block extending out of the sprue.

[0007] In a preferred embodiment of the present invention, the length of the upper portion of the filter block extending out of the sprue is 5 mm.

[0008] In a preferred embodiment of the present invention, the sprue is an S-shaped sprue extending vertically downward.

[0009] In a preferred embodiment of the present invention, the sprue and runner are formed by splicing ceramic tubes.

[0010] In a preferred embodiment of the present invention, a slag collecting bag is provided at the end of the runner.

[0011] In a preferred embodiment of the present invention, the runner has a plurality of inner gates connected to the casting.

[0012] In a preferred embodiment of the utility model, the cross runners are symmetrically arranged around two sides of the casting, and the molten iron in the straight runner is divided into the cross runners on both sides through the filtering slag block.

[0013] In a preferred embodiment of the present invention, the filter residue block is an integrated structure.

[0014] The beneficial effects of the utility model are as follows: the casting pouring device of the utility model blocks slag through the slag filter block, and the upper part of the slag filter block extends out of the horizontal runner to prevent the slag of the molten iron from flowing into the casting again through the gap, thereby more effectively avoiding slag.

[0015] The utility model casting pouring device disperses the height difference into each S-shaped pouring system through the S-shaped straight runner, thereby reducing the problem of large height difference.

[0016] The utility model provides a casting pouring device, wherein the slag collecting bag cools down the first stream of molten iron and can collect the slag of the molten iron. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0018] Figure 1 It is a structural schematic diagram of the casting pouring device of the utility model;

[0019] Figure 2 It is a top view of the casting pouring device;

[0020] The markings of the components in the accompanying drawings are as follows: 1. straight runner, 2. horizontal runner, 3. filter block, 4. slag collection bag, 5. casting, 6. inner gate. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiment of the utility model will be described clearly and completely below. The structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification, so that people familiar with this technology can understand and read, and are not used to limit the limiting conditions that can be implemented in the utility model, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effect that can be produced by the utility model and the purpose that can be achieved, should still fall within the scope of the technical content disclosed in the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of narration, and are not used to limit the scope that can be implemented. The change or adjustment of its relative relationship should also be regarded as the scope that can be implemented in the utility model without substantially changing the technical content.

[0022] See also Figure 1 and Figure 2 A casting pouring device includes a casting 5 and a runner 2 connected to the casting 5, and a sprue 1 is connected to the runner 2. The sprue 1 is an S-shaped runner extending vertically downward. The runners 2 are symmetrically arranged around the two sides of the casting 5, and the runner 2 has a plurality of inner gates 6 connected to the casting 5. The sprue 1 and the runner 2 are formed by splicing ceramic tubes. The sprue 1 and the runner 2 are formed by splicing ceramic tubes, and there is no need to form them through resin sand or coated sand. The molten iron enters the interior of the casting 5 along the runner 1 and the runner 2. Figure 1 and 2 As shown by the arrow in the middle, the cross section of the sprue 1 is S-shaped, which disperses the height difference into each S-shaped pouring system, thereby reducing the problem of large height difference.

[0023] A filter block 3 is provided at the connection between the sprue 1 and the runner 2, and the upper and lower parts of the filter block 3 both extend out of the sprue 1. The molten iron in the sprue 1 is diverted through the filter block 3 and enters the runners 2 on both sides. The length of the lower part of the filter block 3 extending out of the sprue 1 is greater than the length of the upper part of the filter block 3 extending out of the sprue 1. The length of the lower part of the filter block 3 extending out of the sprue 1 is 2-3 times the length of the upper part of the filter block 3 extending out of the sprue 1.

[0024] If the upper part of the filter block 3 does not extend beyond the runner 2, the slag of the molten iron will flow into the casting 5 again through the gap between the runner 2 and the filter block 3. Therefore, in the present application, it is preferred that the length of the upper part of the filter block 3 extending from the sprue 1 is 5 mm. The overall size of the filter block 3 is 120×120×22 mm, and the filter block 3 can be used to more effectively avoid slag, preventing the slag of the molten iron from flowing into the casting 5 again through the gap.

[0025] The filter block 3 is an integrated structure. Since the runners 2 are arranged symmetrically on both sides, the filter block 3 needs to filter the molten iron entering the runners 2 on both sides respectively.

[0026] A slag collecting ladle 4 is provided at the end of the runner 2. The slag collecting ladle 4 has a width of 70 mm and a height of 150 mm. When the first stream of molten iron is flushed through the entire pouring system, the molten iron will cool down, so that the first stream of molten iron is collected in the slag collecting ladle 4. At the same time, the slag of the molten iron can also be collected in the slag collecting ladle 4.

[0027] Different from the prior art, the casting pouring device of the utility model can effectively avoid slag through the slag filter block 3, prevent the slag of molten iron from flowing into the casting, reduce the contact between hot molten iron and molding sand, and reduce the occurrence of sand holes and slag holes in the casting.

[0028] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A casting pouring device, comprising a casting and a runner connected to the casting, characterized in that: The horizontal runner is connected with a sprue, and a filter residue block is arranged at the connection between the sprue and the horizontal runner, and the upper part and the lower part of the filter residue block both extend out of the sprue.

2. The casting pouring device according to claim 1, characterized in that: The length of the lower part of the filter residue block extending out of the sprue is greater than the length of the upper part of the filter residue block extending out of the sprue.

3. The casting pouring device according to claim 2, characterized in that: The length of the upper part of the filter residue block extending out of the sprue is 5 mm.

4. The casting pouring device according to claim 1, characterized in that: The straight runner is an S-shaped runner extending vertically downward.

5. The casting pouring device according to claim 4, characterized in that: The sprue and runner are formed by splicing ceramic tubes.

6. The casting pouring device according to claim 1, characterized in that: A slag collecting bag is provided at the end of the runner.

7. The casting pouring device according to claim 1, characterized in that: The runner is provided with a plurality of inner gates which are connected with the casting.

8. The casting pouring device according to any one of claims 1 to 7, characterized in that: The cross runners are symmetrically arranged around two sides of the casting, and the molten iron in the straight runner is divided into the cross runners on both sides through the filtering slag blocks.

9. The casting pouring device according to any one of claims 1 to 7, characterized in that: The filter residue block is an integrated structure.

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