Die-casting die limiting pull rod convenient to disassemble

Abstract

The die-casting die limiting pull rod convenient to disassemble comprises a top plate and four limiting rods, circular inserting grooves are formed in the lower ends, close to the four corners, of the top plate, circular inserting blocks are inserted into the four circular inserting grooves, the upper ends of the four circular inserting blocks are in threaded connection with the circular inserting grooves, and the lower ends of the four circular inserting blocks are in threaded connection with the limiting rods. And cylindrical bulges are arranged at the lower ends of the four circular inserting blocks. The four circular inserting blocks are inserted into the four circular inserting grooves respectively, the threaded protrusions penetrate through the circular through holes and then are matched with nuts for positioning, the four limiting rods are inserted into the circular open grooves in the four cylindrical protrusions respectively, and the rectangular protrusions on the limiting rods penetrate through the first openings and then are inserted into the arc-shaped openings; the limiting rod is rotated to enable the rectangular protrusion to be inserted into the second opening until the rectangular permanent magnet block is inserted into the rectangular clamping groove, the limiting rod is effectively matched with the cylindrical protrusion and the circular insertion block to be positioned on the top plate, the structure is simple, and dismounting and replacement are convenient.

Description

Technical Field

[0001] This utility model relates to the field of die casting mold technology, and in particular to a detachable die casting mold limiting pull rod. Background Technology

[0002] Die casting molds are used to cast liquid forgings. Through the opening and closing motion of the mold, molten metal is injected into the mold cavity. After cooling and solidification, the desired metal parts are obtained. The tie rod is an important limiting component in die casting, and its performance directly affects the quality of the die casting.

[0003] Existing die-casting mold limiting tie rods mostly use threaded prongs screwed into the top plate. Once the threaded prong breaks, the entire tie rod needs to be replaced, and additional threaded holes need to be drilled in the top plate, which is time-consuming and labor-intensive. A detachable die-casting mold limiting tie rod is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings and defects in existing technologies, this utility model proposes a detachable die-casting mold limiting tie rod. This addresses the problem that existing die-casting mold limiting tie rods in the background technology mostly use threaded prongs screwed into the top plate. Once the threaded prong breaks, the entire tie rod needs to be replaced, and additional threaded holes need to be drilled in the top plate, which is time-consuming and labor-intensive.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A removable die-casting mold limiting rod includes a top plate and four limiting rods. The top plate has a circular slot at the lower end near each of the four corners. A circular block is inserted into each of the four circular slots. The upper end of each of the four circular blocks is threaded to the circular slot. The lower end of each of the four circular blocks has a cylindrical protrusion. The lower end of each of the four cylindrical protrusions has a circular slot. The four limiting rods are respectively inserted into the four circular slots and are movably engaged with the circular slots.

[0007] Preferably, each of the four circular slots has a circular through hole on its top surface at the center position, and each of the four circular inserts has a threaded protrusion at the upper end of its center position. The four threaded protrusions are respectively arranged through the four circular through holes, and a nut is threadedly fitted onto one end of each of the four threaded protrusions outside the circular through holes. The lower ends of the four nuts are pressed against the upper end of the top plate.

[0008] Preferably, the cylindrical protrusion and the threaded protrusion are integrally cast with the circular insert.

[0009] Preferably, each of the four limiting rods has a rectangular protrusion on its annular sidewall near the upper end. The rectangular protrusion is integrally cast with the limiting rod. Each of the four circular slots has an arc-shaped opening on its annular inner wall near the lower end of the cylindrical protrusion. The arc-shaped opening has a first opening on the bottom of one side of the inner wall and a second opening on the top surface of the arc-shaped opening away from the first opening. The four rectangular protrusions pass through the four first openings and are inserted into the second openings.

[0010] Preferably, a rectangular permanent magnet block is fixedly connected to the top surface of the center position of each of the four circular slots, and a rectangular slot is provided at the upper end of each of the four limiting rods. The four rectangular permanent magnet blocks are respectively inserted into the four rectangular slots.

[0011] Preferably, the rectangular permanent magnet block is a rubidium magnet.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] By inserting four circular blocks into four circular slots, and positioning them with nuts after the threaded protrusions pass through the circular through holes, four limiting rods are inserted into the circular slots on the four cylindrical protrusions. The rectangular protrusions on the limiting rods pass through the first opening and are inserted into the arc-shaped opening. The limiting rods are rotated so that the rectangular protrusions are inserted into the second opening, until the rectangular permanent magnet is inserted into the rectangular slot. This effectively positions the limiting rods, cylindrical protrusions and circular blocks on the top plate. The structure is simple and easy to replace. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a detachable die-casting mold limiting tie rod proposed in this utility model;

[0015] Figure 2 This is a cross-sectional schematic diagram of a detachable die-casting mold limiting tie rod proposed in this utility model;

[0016] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0017] Figure 4 for Figure 2 A magnified view of a section at point B in the middle;

[0018] Figure 5 This is a schematic diagram of the circular insert and cylindrical protrusion of a detachable die-casting mold limiting rod proposed in this utility model.

[0019] In the diagram: 1. Top plate, 2. Limiting rod, 3. Circular slot, 4. Circular insert, 5. Columnar protrusion, 6. Circular slot, 7. Circular through hole, 8. Threaded protrusion, 9. Nut, 10. Rectangular protrusion, 11. Arc-shaped opening, 12. First opening, 13. Second opening, 14. Rectangular permanent magnet block, 15. Rectangular slot. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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.

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-5 A removable die-casting mold limiting rod includes a top plate 1 and four limiting rods 2. The lower end of the top plate 1 near each of the four corners is provided with a circular slot 3. A circular insert 4 is inserted into each of the four circular slots 3, and the upper ends of the four circular inserts 4 are threadedly connected to the circular slots 3. A circular through hole 7 is provided on the top surface of the center of each of the four circular slots 3. A threaded protrusion 8 is provided on the upper end of the center of each of the four circular inserts 4, and the four threaded protrusions 8 are respectively set through the four circular through holes 7. The threaded protrusions 8 are threaded with nuts 9 at one end outside the circular through hole 7. The lower ends of the four nuts 9 are pressed against the upper end of the top plate 1. The four circular inserts 4 are respectively inserted into the four circular slots 3 at the lower end of the top plate 1, and the threaded protrusions 8 on the four circular inserts 4 pass through the circular through hole 7 and are positioned with the nuts 9, effectively positioning the circular inserts 4 and the cylindrical protrusions 5 at the lower end of the top plate 1. The cylindrical protrusions 5 and the threaded protrusions 8 are integrally cast with the circular inserts 4.

[0023] Each of the four circular inserts 4 has a cylindrical protrusion 5 at its lower end, and a circular slot 6 at the lower end of each of the four cylindrical protrusions 5. Four limiting rods 2 are inserted into the four circular slots 6, and are movably engaged with each of the four limiting rods 2. A rectangular protrusion 10 is provided on the annular sidewall near the upper end of each of the four limiting rods 2. The rectangular protrusion 10 and the limiting rod 2 are integrally cast. An arc-shaped opening 11 is provided on the annular inner wall near the lower end of each of the four circular slots 6. A first opening 12 is provided on the bottom of one side of the arc-shaped opening 11, and a second opening 13 is provided on the top surface of the arc-shaped opening 11 away from the first opening 12. The four rectangular protrusions 10 pass through the four first openings 12 and are inserted into the second openings 13. The limiting rods 2 are inserted into the circular slots 6 so that the rectangular protrusions 10 on the limiting rods 2 pass through the first openings 12 and are inserted into the arc-shaped openings 11. The limiting rods are then manually rotated. 2. The rectangular protrusion 10 is inserted into the second opening 13 until the rectangular permanent magnet block 14 of the neodymium magnet is inserted into the rectangular slot 15. This effectively positions the four limiting rods 2, the cylindrical protrusion 5, and the circular insert 4 on the top plate 1. When disassembling, simply pull the limiting rod 2 to separate the rectangular permanent magnet block 14 from the rectangular slot 15, and rotate the limiting rod 2 to move the rectangular protrusion 10 along the arc opening 11 and separate it from the first opening 12. This completes the replacement of the limiting rod 2. The structure is simple and easy to disassemble and replace, saving time and effort. Rectangular permanent magnet blocks 14 are fixedly connected to the top surface of the center of the four circular slots 6. The upper end of the four limiting rods 2 is provided with a rectangular slot 15. The four rectangular permanent magnet blocks 14 are respectively inserted into the four rectangular slots 15. The rectangular permanent magnet blocks 14 are neodymium magnets, which can effectively attract and fix the metal limiting rods 2 in the circular slots 6.

[0024] In use, four circular inserts 4 are respectively inserted into the four circular slots 3 at the lower end of the top plate 1, and the threaded protrusions 8 on the four circular inserts 4 pass through the circular through holes 7 and are positioned with nuts 9, effectively positioning the circular inserts 4 and cylindrical protrusions 5 at the lower end of the top plate 1. Then, four limiting rods 2 are sequentially inserted into the circular slots 6 on the four cylindrical protrusions 5, and the rectangular protrusions 10 on the limiting rods 2 pass through the first opening 12 and are inserted into the arc-shaped opening 11. The limiting rods are then manually rotated to position them. Rod 2 allows the rectangular protrusion 10 to be inserted into the second opening 13 until the rectangular permanent magnet block 14 of the neodymium magnet is inserted into the rectangular slot 15. This effectively positions the four limiting rods 2, along with the cylindrical protrusion 5 and the circular insert 4, on the top plate 1. During disassembly, simply pull the limiting rod 2 to separate the rectangular permanent magnet block 14 from the rectangular slot 15, and rotate the limiting rod 2 to move the rectangular protrusion 10 along the arc-shaped opening 11 and separate it from the first opening 12. This completes the replacement of the limiting rod 2. The structure is simple and easy to disassemble and replace, saving time and effort.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A removable die-casting mold limiting rod, comprising a top plate (1) and four limiting rods (2), characterized in that, The top plate (1) is provided with a circular slot (3) at the lower end near the four corners. A circular plug (4) is inserted into each of the four circular slots (3). The upper ends of the four circular plugs (4) are threaded to the circular slots (3). The lower ends of the four circular plugs (4) are provided with cylindrical protrusions (5). The lower ends of the four cylindrical protrusions (5) are provided with circular slots (6). The four limiting rods (2) are respectively inserted into the four circular slots (6). The four limiting rods (2) are movably engaged with the circular slots (6).

2. The easily detachable die-casting mold limiting tie rod according to claim 1, characterized in that, Each of the four circular slots (3) has a circular through hole (7) on its top surface at the center position. Each of the four circular inserts (4) has a threaded protrusion (8) at the top end of its center position. The four threaded protrusions (8) are respectively set through the four circular through holes (7). The end of each of the four threaded protrusions (8) outside the circular through hole (7) is threaded with a nut (9). The lower end of each of the four nuts (9) is pressed against the upper end of the top plate (1).

3. The easily detachable die-casting mold limiting tie rod according to claim 2, characterized in that, The cylindrical protrusion (5) and the threaded protrusion (8) are integrally cast with the circular insert (4).

4. The easily detachable die-casting mold limiting tie rod according to claim 1, characterized in that, The four limiting rods (2) are provided with rectangular protrusions (10) on the annular sidewalls near the upper end. The rectangular protrusions (10) and the limiting rods (2) are integrally cast. The four circular slots (6) are provided with arc-shaped openings (11) on the annular inner wall near the lower end of the cylindrical protrusions (5). The arc-shaped openings (11) are provided with a first opening (12) on the bottom of one side of the inner wall. The arc-shaped openings (11) are provided with a second opening (13) on the top surface away from the first opening (12). The four rectangular protrusions (10) pass through the four first openings (12) and are inserted into the second openings (13).

5. A removable die-casting mold limiting tie rod according to claim 1, characterized in that, A rectangular permanent magnet block (14) is fixedly connected to the top surface of the center position of each of the four circular slots (6). A rectangular slot (15) is provided at the upper end of each of the four limiting rods (2). The four rectangular permanent magnet blocks (14) are respectively inserted into the four rectangular slots (15).

6. A removable die-casting mold limiting tie rod according to claim 5, characterized in that, The rectangular permanent magnet block (14) is a rubidium magnet.

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