Metal mold for manual core shooting of precoated sand core of Gille test block

Abstract

The utility model discloses a metal mold for manual core shooting of a Gille test block precoated sand core, which relates to the technical field of molds and comprises a movable mold and a fixed mold, molding cavities are arranged on the movable mold and the fixed mold, sand injection holes are arranged on the same side of the movable mold and the fixed mold, and the movable mold and the fixed mold are arranged in the same side of the movable mold and the fixed mold. The movable mold and the fixed mold are respectively provided with a heating hole for inserting a heating pipe; the core shooting of the precoated sand Gel test block is realized through the self-made handheld sand shooting device in combination with a small metal mold manual opening and closing mechanical device, so that the size precision of the sand mold Gel test block and the production efficiency of the test block are improved, and the risk of unstable performance test caused by sand inclusion in the test block is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a metal mold for manually shooting coated sand cores of Gill test blocks. Background Art

[0002] Gill test block, also known as Keel test block, is an important tool for testing the material properties of steel castings. Its main function is to evaluate the mechanical properties, heat treatment effects and material durability of steel castings through testing and analysis; core shooting refers to the process of using a core shooting machine to shoot core sand into a heated core box, hardening the core sand by heating, and thus manufacturing a complex core; in the core shooting manufacturing process, the sand mold material used for core shooting will be tensile tested, so the sand mold will be used to make Gill test blocks. The existing sand mold Gill test blocks are manually molded by furan resin sand wooden molds, with low dimensional accuracy and test block molding efficiency. The test blocks are prone to sand inclusions, resulting in unstable performance tests of the sand molds. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a metal mold for manually shooting the coated sand core of the Gill test block.

[0004] The metal mold for manually shooting the coated sand core of the Gill test block provided by the utility model adopts the following technical solutions:

[0005] A metal mold for manually shooting coated sand cores of Gill test blocks comprises a movable mold and a fixed mold, both of which are provided with a forming cavity, a sand injection hole is provided on the same side of the movable mold and the fixed mold, and heating holes for inserting heating tubes are provided on the movable mold and the fixed mold.

[0006] Furthermore, the fixed mold is provided with an ejector rod for ejecting the formed test block.

[0007] Furthermore, a plurality of air outlet holes communicating with the cavity are provided on the peripheral side of the fixed mold.

[0008] Furthermore, the fixed mold is provided with a positioning post, and the movable mold is provided with a positioning hole. When the movable mold is buckled on the fixed mold, the positioning post is inserted into the positioning hole.

[0009] Furthermore, two positioning columns are provided and are arranged at two opposite corners of the fixed mold.

[0010] To sum up, the utility model has at least one of the following beneficial effects: combined with a manual opening and closing mechanical device for a small metal mold, the core shooting of the coated sand gill test block is realized through a homemade handheld sand shooting device, thereby improving the dimensional accuracy of the sand mold gill test block and the test block production efficiency, and reducing the risk of unstable performance testing caused by sand inclusion in the test block. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0012] Figure 2 This is an exploded diagram of an embodiment of the present utility model;

[0013] Figure 3 It is a structural schematic diagram of the movable mold of an embodiment of the utility model.

[0014] Description of reference numerals:

[0015] 1. Moving mold; 11. Positioning hole; 2. Fixed mold; 21. Air outlet; 22. Positioning column; 3. Sand injection hole; 4. Heating hole; 5. Ejector pin. DETAILED DESCRIPTION

[0016] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention.

[0017] The following is combined with Figure 1-3 The utility model is described in further detail.

[0018] The embodiment of the utility model discloses a metal mold for manually shooting a coated sand core of a Gill test block. Figure 1-Figure 3 The metal mold used for manual core shooting of coated sand cores of Gill test blocks includes a movable mold 1 and a fixed mold 2. The movable mold 1 and the fixed mold 2 are both provided with a molding cavity, and a sand injection hole 3 is provided on the same side of the movable mold 1 and the fixed mold 2. The movable mold 1 and the fixed mold 2 are both provided with a heating hole 4 for inserting a heating tube. When in use, the heating tube is inserted into the heating hole 4, and the heating tube is heated to 180℃-250℃. The heating tube can heat the movable mold 1 and the fixed mold 2. The movable mold 1 is buckled on the fixed mold 2 through a mechanical device, and sand is injected into the cavity through the sand injection hole 3. It is heated and formed by the heating tube. Combined with a small metal mold manual opening and closing mechanical device, the coated sand Gill test block core shooting is realized by a homemade handheld sand shooting device, which improves the dimensional accuracy of the sand mold Gill test block and the test block production efficiency, and reduces the risk of unstable performance testing caused by sand inclusion in the test block.

[0019] In this embodiment, the fixed mold 2 is provided with a push rod 5 for ejecting the molded test block. There are three push rods 5. After the test block is formed, the movable mold 1 is separated from the fixed mold 2. The push rod 5 is pushed by mechanical equipment. The push rod 5 can push out the test block formed in the cavity to complete the demolding.

[0020] In this embodiment, a plurality of air vents 21 connected to the chamber are provided on the peripheral side of the fixed mold 2. When sand is injected, the air in the chamber can be discharged through the air vents 21 to avoid the presence of voids between the sand materials and the influence on the strength of the test block after forming.

[0021] In this embodiment, a positioning column 22 is provided on the fixed mold 2, and a positioning hole 11 is provided on the movable mold 1. When the movable mold 1 is buckled on the fixed mold 2, the positioning column 22 is inserted into the positioning hole 11, and the movable mold 1 can be more accurately installed on the fixed mold 2 through the positioning column 22.

[0022] In this embodiment, two positioning posts 22 are provided and are disposed at two opposite corners of the fixed mold 2 .

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A metal mold for manually shooting coated sand cores for Gill test blocks, characterized by: The invention comprises a movable mold (1) and a fixed mold (2), wherein the movable mold (1) and the fixed mold (2) are both provided with a molding cavity, a sand injection hole (3) is provided on the same side of the movable mold (1) and the fixed mold (2), and a heating hole (4) for inserting a heating tube is provided on the movable mold (1) and the fixed mold (2).

2. The metal mold for manually shooting coated sand cores for Gill test blocks according to claim 1, characterized in that: The fixed mold (2) is provided with an ejector rod (5) for ejecting the molded test block.

3. The metal mold for manually shooting coated sand cores for Gill test blocks according to claim 1, characterized in that: The fixed mold (2) is provided with a plurality of air outlet holes (21) on the peripheral side thereof and the air outlet holes (21) are in communication with the cavity.

4. The metal mold for manually shooting coated sand cores for Gill test blocks according to claim 1, characterized in that: The fixed mold (2) is provided with a positioning column (22), and the movable mold (1) is provided with a positioning hole (11). When the movable mold (1) is buckled onto the fixed mold (2), the positioning column (22) is inserted into the positioning hole (11).

5. The metal mold for manually shooting coated sand cores of Gill test blocks according to claim 4, characterized in that: Two positioning columns (22) are provided and are arranged at two opposite corners of the fixed mold (2).

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