A lost foam mold capable of quick change

Abstract

The utility model discloses a kind of lost foam moulds of quick replacement, including bolt and mould;The mould bottom all extends to form fixed frame outward around, four side plates of fixed frame are equipped with threaded hole, bolt is threadedly connected in threaded hole, the end of bolt relative to nut is coaxially equipped with universal ball, the lower portion of fixed frame is equipped with recess with its intercommunication corresponding threaded hole, the size of recess is greater than the size of universal ball, and the depth of recess is greater than the height of universal ball.The utility model is simple in structure, only needs to be simply changed on original mould;Disassembling process is easy to operate, and less physical consumption;It is safer to operate, and disassembling process will not appear mould sliding and other dangerous conditions.

Description

Technical Field

[0001] This utility model relates to the field of lost foam casting technology, specifically a lost foam casting mold that can be quickly replaced. Background Technology

[0002] The white mold for lost foam casting is generally manufactured by a white mold forming machine. Each lost foam casting process requires one white mold. The traditional method for changing lost foam molds is as follows: the mold is transported to the vicinity of the forming machine, placed on a prepared manual forklift, the forks are raised to a slightly higher position on the forming machine's worktable, and the mold is forcefully pushed onto the worktable. The mold moves on the worktable using sliding friction. The rough surfaces of the worktable and the bottom of the mold are quite large, resulting in significant frictional resistance. The molds are generally heavy, and the disassembly and assembly process often requires two people working together. A pry bar is typically used to forcefully pry the mold into the appropriate position. This process is labor-intensive and time-consuming. Furthermore, in the past, companies produced relatively simple lost foam casting products in large batches. Although disassembly and assembly were difficult, the replacement frequency was low, which companies could adapt to. However, with increasingly fierce market competition, OEMs are updating their products more rapidly and generally no longer keep stock. As parts suppliers, foundries are producing more and more diverse products in smaller quantities, requiring more frequent and time-consuming mold changes. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a lost foam mold that can be quickly replaced. It has a simple structure and only requires simple modifications to the original mold. The disassembly and assembly process is convenient and consumes less physical strength. The operation is safer and there will be no dangerous situations such as mold slippage during the disassembly and assembly process. It can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a quick-change lost foam casting mold, comprising bolts and a mold; the bottom of the mold extends outwards to form a fixed frame, and the four side plates of the fixed frame are provided with threaded through holes, with bolts threadedly connected to the threaded through holes, and a universal ball is coaxially provided at one end of the bolt relative to the nut.

[0005] Preferably, the lower part of the fixed frame is provided with a groove corresponding to the threaded through hole, the groove being larger in size than the universal ball and the groove being deeper than the universal ball's height.

[0006] Preferably, by tightening the bolt, the universal ball extends beyond the bottom surface of the mold, allowing the mold to roll on the molding machine table.

[0007] Preferably, the bolt is inserted into the universal ball joint, the universal ball joint has a plug rod on its upper part, and the bolt end face has a plug hole that is interference-fitted with the plug rod.

[0008] Preferably, each of the four side plates of the fixed frame is provided with two threaded through holes and bolts.

[0009] Compared with the prior art, the advantages of this utility model are: simple structure, requiring only simple modifications to the original mold; convenient disassembly and assembly, requiring less physical effort; safer operation, with no dangerous situations such as mold slippage during disassembly and assembly. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is an enlarged schematic diagram of a partial structure of the present invention; Figure 4 This is a schematic diagram showing the placement of this utility model on a molding machine.

[0011] In the diagram: 1. Fixed frame, 2. Bolt, 3. Mold, 4. Threaded through hole, 5. Groove, 6. Universal ball. Detailed Implementation

[0012] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation.

[0013] Please see Figure 1-4 This utility model provides a technical solution: a quick-change lost foam casting mold, including bolts 2 and a mold 3; the bottom of the mold 3 extends outward to form a fixed frame 1, and the four side plates of the fixed frame 1 are provided with threaded through holes 4, and bolts 2 are threadedly connected to the threaded through holes 4. One end of the bolt 2 opposite to the nut is provided with a universal ball 6; the lower part of the fixed frame 1 is provided with a groove 5 corresponding to the threaded through holes 4 and communicating with them. The size of the groove 5 is larger than the size of the universal ball 6, and the depth of the groove 5 is greater than the height of the universal ball 6. During implementation, when it is necessary to install mold 3 onto the molding machine, bolt 2 can be tightened first to lower it. The universal ball 6 at the bottom of bolt 2 will extend beyond the bottom surface of mold 3. Mold 3 can then be lifted using a forklift. Depending on the size of mold 3, it can be passed horizontally or vertically through the column of the molding machine. Then, mold 3 is placed on the worktable of the molding machine. With the universal ball 6 in contact with the table surface, mold 3 can be directly pushed to adjust its position. Due to the greater effort required by rolling friction, adjustment is very convenient. After adjusting to the appropriate position, bolt 2 is tightened to raise it, and the universal ball 6 retracts into the groove 5. Only a simple modification is needed on the original mold, namely, drilling threaded through holes 4 on the fixed frame 1, and then installing bolt 2 and universal ball 6. The disassembly and assembly process is convenient and consumes less physical effort. The operation is also safer, as there will be no dangerous situations such as mold slippage during the disassembly and assembly process. Furthermore, the bolt 2 is inserted into the universal ball 6. The universal ball 6 has a plug rod on its upper part, and the end face of the bolt 2 has a plug hole that is interference fit with the plug rod, which facilitates the assembly and disassembly of the universal ball 6. The interference fit is used to prevent the universal ball 6 from easily separating from the bolt 2. Specifically, each of the four side plates of the fixed frame 1 is provided with two threaded through holes 4 and bolts 2.

[0014] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to include all changes that fall within the meaning and scope of equivalents in the content of this utility model.

Claims

1. A lost foam mold capable of rapid changeover, characterized by: Includes bolts (2) and molds (3); the bottom of the mold (3) extends outward to form a fixed frame (1), and the four side plates of the fixed frame (1) are provided with threaded through holes (4), and bolts (2) are threadedly connected in the threaded through holes (4). One end of the bolt (2) is coaxially provided with a universal ball (6) relative to the nut.

2. A lost foam mold capable of quick changeover according to claim 1, wherein: The lower part of the fixed frame (1) is provided with a groove (5) corresponding to the threaded through hole (4), the size of the groove (5) is larger than the size of the universal ball (6), and the depth of the groove (5) is greater than the height of the universal ball (6).

3. A lost foam mold capable of quick changeover according to claim 1, wherein: Tighten the bolt (2) to extend the ball (6) beyond the bottom surface of the mold (3), so that the mold (3) can roll on the molding machine table.

4. A lost foam mold capable of quick changeover according to claim 1, wherein: The bolt (2) is inserted into the universal ball (6), and the universal ball (6) has a plug rod on its upper part. The bolt (2) has a plug hole on its end face that is interference fit with the plug rod.

5. A lost foam mold capable of quick changeover according to claim 1, wherein: The four side plates of the fixed frame (1) are each provided with two threaded through holes (4) and bolts (2).

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