Sand casting mold facilitating sand box positioning

Abstract

The utility model discloses a sand casting mold convenient for positioning a sand box. A convex mold is arranged on the upper surface of a mold table, an end part fixing limiting block is arranged at one end of the upper surface of the mold table, a side edge fixing limiting block is arranged on one side of the upper surface of the mold table, and a plurality of fixed semi-ring bodies are arranged on one side, far away from the side edge fixing limiting block, of the mold table; the movable limiting piece is movably arranged on the side, located on the fixed semi-ring body, of the die table, the movable limiting piece is in threaded fit with the adjusting screw rod, and the end of the adjusting screw rod is in rotating fit with the fixed semi-ring body and the semi-ring body gland through the limiting ring. The movable limiting piece can move through cooperation of the adjusting screw rod, after the sand box is used for a long time and deforms, the sand box which slightly deforms can be continuously used by moving the movable limiting piece, the situation that the sand box cannot be used due to deformation of the sand box is avoided, flexibility and applicability are greatly improved, and cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of sand casting technology, specifically to a sand casting mold that facilitates the positioning of the sand box. Background Technology

[0002] Sand casting is a casting method that produces castings in sand molds. Steel, iron, and most non-ferrous alloy castings can be obtained using sand casting. Because the molding materials used in sand casting are inexpensive and readily available, and the mold making is simple, it is suitable for single-piece production, batch production, and mass production of castings, and has long been a basic process in casting production.

[0003] In the sand casting process, the sand mold cavity is generally formed using a sand casting mold. Currently, the upper surface of the mold table of sand casting molds generally has limit blocks in three directions to limit the sand box. The limit blocks are generally integrally formed with the mold or connected to the mold table by welding. However, in the long-term sand casting process, the four sides of the sand box are prone to deformation, making it difficult for the sand box to be inserted into the inner side of the limit blocks in three directions. If the sand box is replaced, the cost will increase. Therefore, there is an urgent need for an improved technology to solve this problem in the existing technology. Utility Model Content

[0004] The purpose of this invention is to provide a sand casting mold that facilitates sand box positioning, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sand casting mold for easy sand box positioning, comprising a mold platform, a punch, an end fixing limit block, a side fixing limit block, a movable limiting component, and an adjusting screw. The punch is provided on the upper surface of the mold platform. An end fixing limit block is provided at one end of the upper surface of the mold platform. A side fixing limit block is provided on one side of the upper surface of the mold platform. Several fixed semi-rings are provided on the side of the mold platform away from the side fixing limit blocks. The movable limiting component is movably disposed on the side of the mold platform located on the fixed semi-ring. The fixed semi-rings are fastened to the semi-ring cap by bolts. Both the fixed semi-rings and the semi-ring cap have semi-circular slots. The semi-circular slots of the fixed semi-rings and the semi-ring cap cooperate to form a circular slot. A limiting ring is provided at one end of the adjusting screw and fastened by bolts. The limiting ring is rotatably disposed within the circular slot formed by the semi-circular slots of the fixed semi-rings and the semi-circular slots of the semi-ring cap.

[0006] The movable limiting component includes a movable limiting block, a connecting section, and a bottom limiting plate. The connecting section is provided on one side of the movable limiting block, and the bottom limiting plate is provided at the end of the connecting section away from the movable limiting block. The movable limiting block is slidably disposed on the upper surface of the mold table, and the bottom limiting plate is slidably disposed on the lower surface of the mold table. The connecting section has a screw hole, and the adjusting screw is threadedly engaged with the screw hole of the connecting section.

[0007] Preferably, the present invention provides a sand casting mold that facilitates sand box positioning, wherein the movable limiting block, connecting section and bottom limiting plate are an integral structure.

[0008] Preferably, the present invention provides a sand casting mold that facilitates sand box positioning, wherein a plurality of conical positioning columns are vertically arranged on the upper surface of the mold platform.

[0009] Preferably, the present invention provides a sand casting mold that facilitates sand box positioning, wherein the lower surface of the mold platform is provided with several supporting feet.

[0010] Preferably, the present invention provides a sand casting mold that facilitates sand box positioning, wherein the adjusting screw has a hexagonal head at the end away from the limiting ring.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] An end-fixing limit block is provided at one end of the upper surface of the mold table, a side-fixing limit block is provided on one side of the upper surface of the mold table, and a movable limit component is provided on the other side of the mold table. The movable limit component can be moved by adjusting the screw. When the sand box is deformed after long-term use, the slightly deformed sand box can continue to be used by moving the movable limit component, so that it will not be unusable due to the deformation of the sand box. The flexibility and applicability are greatly improved, and the cost is saved. Attached Figure Description

[0013] Figure 1 This is a top view of the structure of this utility model;

[0014] Figure 2 For the appendix Figure 1 Enlarged structural diagram of point A in the middle;

[0015] Figure 3 This is a side view of the structure of this utility model;

[0016] Figure 4 This is a front view structural diagram of the present invention;

[0017] Figure 5 For the appendix Figure 4 A magnified diagram of the structure at point B (the semi-ring cap is not shown);

[0018] Figure 6 This is a schematic diagram showing the positional relationship between the present invention and the sand box.

[0019] In the figure: 1. Mold table; 2. Punch; 3. End fixing limit block; 4. Side fixing limit block; 5. Movable limit component; 6. Adjusting screw; 7. Fixed semi-ring body; 8. Semi-ring body cover; 9. Semi-circular groove; 10. Limiting ring; 11. Conical positioning post; 12. Support foot; 13. Hexagonal head; 501. Movable limit block; 502. Connecting section; 503. Bottom limiting plate; 504. Screw hole. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Please see Figure 1-5This utility model provides a technical solution: a sand casting mold for easy sand box positioning, including a mold platform 1, a punch 2, an end fixing limit block 3, a side fixing limit block 4, a movable limiting component 5, and an adjusting screw 6. The punch 2 is provided on the upper surface of the mold platform 1, the end fixing limit block 3 is provided at one end of the upper surface of the mold platform 1, the side fixing limit block 4 is provided on one side of the upper surface of the mold platform 1, and a plurality of fixed semi-rings 7 are provided on the side of the mold platform 1 away from the side fixing limit block 4. The movable limiting component 5 is movably disposed on the side of the mold platform 1 located on the fixed semi-rings 7. The fixed semi-rings 7 are fastened to the semi-ring cover 8 by bolts. Both the fixed semi-rings 7 and the semi-ring cover 8 have openings. The mold has a semi-circular groove 9, which is used to fix the semi-ring body 7 and the semi-ring body cover 8. The semi-circular groove 9 cooperates with each other to form a circular groove. One end of the adjusting screw 6 is provided with a limit ring 10 and is fastened with bolts. The end of the adjusting screw 6 away from the limit ring 10 is provided with a hexagonal head 13 so that the adjusting screw 6 can be rotated with a tool. The limit ring 10 is rotatably set in the circular groove formed by the semi-circular groove 9 of the fixed semi-ring body 7 and the semi-circular groove 9 of the semi-ring body cover 8. Several conical positioning columns 11 are vertically arranged on the upper surface of the mold table 1 so that the lower surface is reserved with positioning holes after sand positioning. Several support feet 12 are provided on the lower surface of the mold table 1 so as to raise and support the mold.

[0023] The movable limiting component 5 includes a movable limiting block 501, a connecting section 502, and a bottom limiting plate 503. The connecting section 502 is provided on one side of the movable limiting block 501, and the bottom limiting plate 503 is provided at the end of the connecting section 502 away from the movable limiting block 501. The movable limiting block 501, the connecting section 502, and the bottom limiting plate 503 are integrated into one structure to ensure the structural strength of the movable limiting component 5. The movable limiting block 501 is slidably disposed on the upper surface of the mold table 1, and the bottom limiting plate 503 is slidably disposed on the lower surface of the mold table 1. The connecting section 502 has a screw hole 504, and the adjusting screw 6 is threadedly engaged with the screw hole 504 in the connecting section 502.

[0024] Assembly method and operating principle: First, the casting mold, movable limiting part 5, semi-ring body pressure cover 8, adjusting screw 6 and limiting ring 10 are made. Among them, punch 2, end fixed limiting block 3, side fixed limiting block 4, fixed semi-ring body 7, conical positioning column 11 and support foot 12 are integrated into one structure. During assembly, the adjusting screw 6 is passed through the screw hole 504 of the connecting section 502. Then, the limiting ring 10 is fitted onto the front end of the adjusting screw 6 and fastened with bolts. Next, the movable limiting piece 5 is slidably connected to the side of the mold table 1. At this time, the movable limiting block 501 is located on the upper surface of the mold table 1, and the bottom limiting plate 503 is located on the lower surface of the mold table 1. Then, the limiting ring 10 is placed into the semi-circular slot 9 of the fixed half-ring body 7. Then, the half-ring body cover 8 is pressed onto the limiting ring 10, and the half-ring body cover 8 is fastened to the fixed half-ring body 7 with bolts. At this time, the limiting ring 10 is located between the fixed half-ring and the half-ring body cover 8, and the assembly is completed. In use, the movable limiting component 5 is adjusted according to the sand box, specifically by rotating the adjusting screw 6. Since the limiting ring 10 at the end of the adjusting screw 6 is limited by the semi-ring cap 8 and the fixed semi-ring 7, when the adjusting screw 6 is rotated, the adjusting screw 6 engages with the screw hole 504 of the connecting section 502 of the movable limiting component 5, thereby realizing the movement of the movable limiting component 5. The sand box is placed on the upper surface of the mold table 1, with the punch 2 located inside the sand box. The end of the sand box abuts against the end fixed limiting block 3, one side of the sand box abuts against the side fixed limiting block 4, and the other side of the sand box is abutted by the movable limiting block 501 of the movable limiting component 5. Figure 6 As shown, sand is then poured in, pressed by a press, and demolded to obtain molding sand with half a cavity. This invention has a reasonable structure. One end of the upper surface of the mold base 1 is provided with an end fixing limit block 3, one side of the upper surface of the mold base 1 is provided with a side fixing limit block 4, and the other side of the mold base 1 is provided with a movable limit member 5. The movable limit member 5 can be moved by adjusting the screw 6. When the sand box deforms after long-term use, the slightly deformed sand box can continue to be used by moving the movable limit member 5, preventing it from becoming unusable due to deformation. This greatly improves flexibility and applicability, and saves costs.

[0025] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0026] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sand casting mold that facilitates sand box positioning, characterized in that: The assembly includes a mold base (1), a punch (2), an end fixing limit block (3), a side fixing limit block (4), a movable limiting component (5), and an adjusting screw (6). The upper surface of the mold base (1) is provided with the punch (2). One end of the upper surface of the mold base (1) is provided with the end fixing limit block (3), and one side of the upper surface of the mold base (1) is provided with the side fixing limit block (4). Several fixed semi-rings (7) are provided on the side of the mold base (1) away from the side fixing limit block (4). The movable limiting component (5) is movably positioned on the mold base (1) at the location of the fixed semi-rings (7). On the side, the fixed half-ring body (7) is fastened to the half-ring body cover (8) by bolts. Both the fixed half-ring body (7) and the half-ring body cover (8) are provided with semi-circular slots (9). The semi-circular slots (9) of the fixed half-ring body (7) and the half-ring body cover (8) cooperate with each other to form a circular slot. One end of the adjusting screw (6) is provided with a limit ring (10) and is fastened by bolts. The limit ring (10) is rotatably set in the circular slot formed by the semi-circular slots (9) of the fixed half-ring body (7) and the semi-circular slots (9) of the half-ring body cover (8). The movable limiting component (5) includes a movable limiting block (501), a connecting section (502), and a bottom limiting plate (503). The movable limiting block (501) has a connecting section (502) on one side, and the connecting section (502) has a bottom limiting plate (503) at the end away from the movable limiting block (501). The movable limiting block (501) is slidably disposed on the upper surface of the mold table (1), and the bottom limiting plate (503) is slidably disposed on the lower surface of the mold table (1). The connecting section (502) has a screw hole (504), and the adjusting screw (6) is threadedly engaged with the screw hole (504) in the connecting section (502).

2. The sand casting mold for easy sand box positioning according to claim 1, characterized in that: The movable limiting block (501), connecting section (502) and bottom limiting plate (503) are an integral structure.

3. The sand casting mold for easy sand box positioning according to claim 1, characterized in that: The upper surface of the mold platform (1) is vertically provided with several conical positioning posts (11).

4. A sand casting mold for easy sand box positioning according to claim 1, characterized in that: The lower surface of the mold platform (1) is provided with several support feet (12).

5. A sand casting mold for easy sand box positioning according to claim 1, characterized in that: The adjusting screw (6) has a hexagonal head (13) at the end away from the limiting ring (10).

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