Pouring device for precisely casting stainless steel flowmeter tube

Abstract

The utility model relates to the technical field of casting, in particular to a pouring device of a precision casting stainless steel flow meter tube, which comprises a placing plate, a sand mold is placed on the placing plate, a pouring port is arranged on the sand mold, a vertical rod is fixedly connected onto the placing plate, a connecting seat is fixedly connected onto the vertical rod, and the connecting seat is fixedly connected with the sand mold. A first connecting shaft is fixedly connected to the connecting seat, a first connecting rod is rotatably connected to the first connecting shaft, a second connecting shaft is rotatably connected to the first connecting rod, a second connecting rod is fixedly connected to the second connecting shaft, and a funnel is fixedly connected to one end of the second connecting rod; a fixing structure is arranged on the first connecting rod; by means of the structure, molten metal can be guided to the sprue gate in a centralized mode, the molten metal can flow into a sand mold cavity more smoothly and accurately, waste of the molten metal is avoided, meanwhile, scouring and damage to a sand mold can be reduced, and therefore the success rate of pouring is effectively increased.

Description

Technical Field

[0001] This utility model relates to a casting device, specifically a casting device for precision-cast stainless steel flow meter tubes, belonging to the field of casting technology. Background Technology

[0002] As the most basic component of high-performance pumps, precision-cast stainless steel flow meter tubes play an indispensable role in the pump's important role as a power hub for material transportation. In the production process, they can be produced by sand casting. During sand casting, liquid metal solution is poured from the pouring port of the sand mold into the interior of the sand mold. The metal solution will flow inside the cavity of the sand mold until it fills the entire cavity.

[0003] However, the diameter of the pouring gate is generally small, so the molten metal may deviate from the pouring gate during the pouring process. The molten metal falling on the surface of the molding sand is prone to splashing and spreading, which will cause waste of molten metal. Furthermore, the molten metal poured directly into the sand mold from the pouring gate will have a certain impact on the sand mold, which can easily damage the sand mold, thus being detrimental to the integrity of the sand mold and the quality of the casting. Utility Model Content

[0004] The purpose of this invention is to provide a casting device for precision-cast stainless steel flow meter tubes to solve the above problems. This device can concentrate and guide the molten metal to the pouring port, allowing the molten metal to flow more smoothly and accurately into the sand mold cavity. This avoids waste of molten metal and reduces scouring and damage to the sand mold, thereby effectively improving the casting success rate.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a casting device for precision-cast stainless steel flow meter tubes, comprising a placement plate, on which a sand mold is placed, and a casting port is provided on the sand mold. A vertical rod is fixedly connected to the placement plate, and a connecting seat is fixedly connected to the vertical rod. A first connecting shaft is fixedly connected to the connecting seat, and a first connecting rod is rotatably connected to the first connecting shaft. A second connecting shaft is rotatably connected to the first connecting rod, and a second connecting rod is fixedly connected to the second connecting shaft. A funnel is fixedly connected to one end of the second connecting rod, and a fixing structure is provided on the first connecting rod.

[0006] Preferably, the vertical rod is perpendicular to the placement plate, and the placement plate has a rectangular cross-section.

[0007] Preferably, the fixing structure includes a sliding rod and a pull rod. Two sliding rods are slidably connected to the first connecting rod. The top ends of the two sliding rods are fixedly connected to the same pull rod. The bottom ends of the two sliding rods are fixedly connected to the same connecting plate. Two sliders are slidably connected to the connecting plate. The bottom ends of the sliders are fixedly connected to a first friction plate. The bottom ends of the first connecting shaft and the second connecting shaft are both fixedly connected to a second friction plate. The top side of the first friction plate abuts against the bottom side of the adjacent second friction plate. A first spring is sleeved on the outside of the slider.

[0008] Preferably, a limiting block is slidably connected to the slide rod, and the bottom end of the limiting block abuts against the first connecting rod.

[0009] Preferably, the slide bar is provided with a second spring inside, one end of the second spring abutting against the limiting block, and the other end of the second spring abutting against the slide bar.

[0010] Preferably, two abutments are slidably connected to the pull rod, the top ends of the two abutments are fixedly connected to the same pressure rod, and the bottom ends of the abutments abut against the adjacent limiting blocks.

[0011] Preferably, the bottom of the abutment block has a trapezoidal cross-section, and the top of the limiting block has a trapezoidal cross-section.

[0012] Preferably, the first connecting rod has a groove in the middle, and the slider and the first friction plate have a T-shaped structure.

[0013] The beneficial effects of this invention are as follows: When casting is required, the sand mold can be placed on the placement plate. After the sand mold is placed, the position of the funnel can be adjusted by rotating the first connecting rod and simultaneously rotating the second connecting rod, so that the bottom of the funnel is directly above the pouring gate. Then, the first and second connecting rods are fixed by a fixing structure, and the funnel cannot move after the first and second connecting rods are fixed. Then, during the casting process, the molten metal can be poured into the inside of the funnel, and the funnel can concentrate and guide the molten metal to the pouring gate. This design allows molten metal to flow more smoothly and accurately into the sand mold cavity, reducing splashing and spillage, and improving the success rate of casting. The molten metal flowing down from a height has a certain impact force, and the funnel acts as a buffer, preventing the molten metal from directly impacting the sand mold's pouring port, thus reducing erosion and damage to the sand mold. This helps ensure the integrity of the sand mold and the quality of the casting. After casting is complete, the limiting mechanism on the first and second connecting rods can be released through a fixing structure. Then, rotating the first and second connecting rods causes the funnel to deviate from the top of the sand mold, preventing the funnel from obstructing the sand mold and facilitating the transfer of the sand mold after casting. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 for Figure 1 The enlarged schematic diagram of part A shown below;

[0016] Figure 3 This is a schematic diagram of the connection structure between the stop block and the limiting block of this utility model;

[0017] Figure 4 for Figure 3 The enlarged schematic diagram of part B is shown.

[0018] In the diagram: 1. Placement plate; 2. Vertical rod; 3. Connecting seat; 4. First connecting shaft; 5. First connecting rod; 6. Second connecting shaft; 7. Second connecting rod; 8. Funnel; 9. Fixing structure; 901. Sliding rod; 902. Pull rod; 903. Connecting plate; 904. Sliding block; 905. First spring; 906. First friction plate; 907. Second friction plate; 908. Pressure rod; 909. Abutment block; 910. Limiting block; 911. Second spring; 10. Groove; 11. Sand mold; 12. Pour gate. Detailed Implementation

[0019] The technical solutions of the present 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 the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a casting device for precision-cast stainless steel flow meter tubes includes a placement plate 1 with a rectangular cross-section. A sand mold 11 is placed on the placement plate 1, and a casting port 12 is provided on the sand mold 11. A vertical rod 2 is fixedly connected to the placement plate 1, and the vertical rod 2 is perpendicular to the placement plate 1. A connecting seat 3 is fixedly connected to the vertical rod 2, and a first connecting shaft 4 is fixedly connected to the connecting seat 3. A first connecting rod 5 is rotatably connected to the first connecting shaft 4, and a second connecting shaft 6 is rotatably connected to the first connecting rod 5. A second connecting rod 7 is fixedly connected to the second connecting shaft 6, and a funnel 8 is fixedly connected to one end of the second connecting rod 7. A fixing structure 9 is provided on the first connecting rod 5.

[0021] As a technical optimization solution of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the fixed structure 9 includes a slide rod 901 and a pull rod 902. Two slide rods 901 are slidably connected to the first connecting rod 5. The slide rods 901 can guide the movement of the connecting plate 903. The top of the two slide rods 901 is fixedly connected to the same pull rod 902. The pull rod 902 can easily pull the two slide rods 901. The bottom of the two slide rods 901 is fixedly connected to the same connecting plate 903. Two sliders 904 are slidably connected to the connecting plate 903. The bottom of the slider 904 is fixedly connected to a first friction plate 906. The bottom of the first connecting shaft 4 and the second connecting shaft 6 are both fixedly connected to a second friction plate 907. The top side of the first friction plate 906 abuts against the bottom side of the adjacent second friction plate 907. A first spring 905 is sleeved on the outside of the slider 904. The compression of the first spring 905 can make the first friction plate 906 and the second friction plate 907 press tightly together, thereby preventing the first connecting rod 5 and the second connecting rod 7 from rotating, thus fixing the funnel.

[0022] As a technical optimization solution of this utility model, such as Figure 3 and Figure 4 As shown, a limiting block 910 is slidably connected to the slide rod 901. The bottom end of the limiting block 910 abuts against the first connecting rod 5, which can limit the slide rod 901, so that the first spring 905 is always in a compressed state. A second spring 911 is provided inside the slide rod 901. When the slide rod 901 moves to a certain position, the limiting block 910 can automatically slide out from the inside of the slide rod 901 under the action of the second spring 911, thereby limiting the slide rod 901.

[0023] As a technical optimization solution of this utility model, such as Figure 3 and Figure 4 As shown, two abutment blocks 909 are slidably connected to the pull rod 902. The top ends of the two abutment blocks 909 are fixedly connected to the same pressure rod 908. By pressing the pressure rod 908, the two abutment blocks 909 can move towards the limiting block 910 at the same time. The bottom end of the abutment block 909 abuts against the adjacent limiting block 910. Since the cross-section of the bottom end of the abutment block 909 is trapezoidal and the cross-section of the top end of the limiting block 910 is trapezoidal, when the abutment block 909 moves towards the limiting block 910, it can abut against the limiting block 910 as it moves towards the inside of the slide rod 901.

[0024] As a technical optimization solution of this utility model, such as Figure 2 As shown, the first connecting rod 5 has a groove 10 in the middle, so that a hand can be inserted into the groove 10 to easily grasp the pull rod 902.

[0025] In use, when casting is required, the sand mold 11 can be placed on the placement plate 1. After the sand mold 11 is placed, the position of the funnel 8 can be adjusted by rotating the first connecting rod 5 and the second connecting rod 7, so that the bottom of the funnel 8 is directly above the pouring port 12. Then, by pulling the pull rod 902, the movement of the pull rod 902 will drive the two sliding rods 901 to move. The movement of the two sliding rods 901 will drive the connecting plate 903 to move. The movement of the connecting plate 903 will compress the first spring 905. 5. When compressed, the first friction plate 906 and the second friction plate 907 will press more tightly together. As the slide rod 901 moves, the second spring 911 will extend, causing the limiting block 910 to move from the inside of the slide rod 901 to the outside. At this time, the pull rod 902 can be released. Under the action of the two limiting blocks 910, the slide rod 901 will not return to its original position, thus putting the two first springs 905 in a compressed state. Since the first friction plate 906 and the second friction plate 907 are pressed tightly together at this time, the first connecting rod 5 cannot rotate on the first connecting shaft 4, and at the same time, the second connecting shaft 6 cannot rotate on the first connecting rod 5. The funnel 8 is rotated upwards to fix its position, preventing it from shifting during pouring. During pouring, molten metal is poured into the funnel 8, which then guides it to the pouring gate 12, ensuring a smoother and more accurate flow into the sand mold cavity. This reduces splashing and spillage, improving the success rate of pouring. Furthermore, the funnel 8 acts as a buffer, preventing direct impact on the sand mold pouring gate 12, thus minimizing erosion and damage to the sand mold and ensuring its integrity and casting quality. After pouring... After completion, pressing the pressure rod 908 will cause the two abutment blocks 909 to move. The abutment blocks 909 will abut against the limiting block 910 and move towards the inside of the slide rod 901. When the limiting block 910 moves to the inside of the slide rod 901, the first spring 905 will extend and drive the connecting plate 903 to reset. After the first spring 905 extends, the first friction plate 906 and the second friction plate 907 will not be pressed together. Then the first connecting rod 5 and the second connecting rod 7 can be rotated to make the funnel 8 deviate from the top of the sand mold 11, so that the funnel 8 does not block the sand mold 11, which facilitates the transfer of the sand mold 11 after pouring.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A casting device for precision casting a stainless steel flowmeter tube, comprising a setting plate (1), characterized in that: The sand mold (11) is placed on the placing plate (1), the sand mold (11) is provided with a pouring gate (12), the placing plate (1) is fixedly connected with a vertical rod (2), the vertical rod (2) is fixedly connected with a connecting seat (3), the connecting seat (3) is fixedly connected with a first connecting shaft (4), the first connecting shaft (4) is rotatably connected with a first connecting rod (5), the first connecting rod (5) is rotatably connected with a second connecting shaft (6), the second connecting shaft (6) is fixedly connected with a second connecting rod (7), one end of the second connecting rod (7) is fixedly connected with a funnel (8), and the first connecting rod (5) is provided with a fixing structure (9).

2. A device for casting a precision cast stainless steel flowmeter tube according to claim 1, wherein: The vertical rod (2) is perpendicular to the placing plate (1), and the cross section of the placing plate (1) is in a rectangular structure.

3. A device for casting a precision cast stainless steel flowmeter tube according to claim 1, wherein: The fixing structure (9) comprises a sliding rod (901) and a pull rod (902), two sliding rods (901) are slidably connected to the first connecting rod (5), the top ends of the two sliding rods (901) are fixedly connected with the same pull rod (902), the bottom ends of the two sliding rods (901) are fixedly connected with the same connecting plate (903), two sliding blocks (904) are slidably connected to the connecting plate (903), the bottom end of the sliding block (904) is fixedly connected with a first friction plate (906), the bottom end of the first connecting shaft (4) and the second connecting shaft (6) is fixedly connected with a second friction plate (907), the top side of the first friction plate (906) is in contact with the bottom side of the adjacent second friction plate (907), and the outside of the sliding block (904) is provided with a first spring (905).

4. A device for casting a precision cast stainless steel flowmeter tube according to claim 3, wherein: The sliding rod (901) is slidably connected with a limiting block (910), and the bottom end of the limiting block (910) is in contact with the first connecting rod (5).

5. A device for casting a precision cast stainless steel flowmeter tube according to claim 4, wherein: The inside of the sliding rod (901) is provided with a second spring (911), one end of the second spring (911) is in contact with the limiting block (910), and the other end of the second spring (911) is in contact with the sliding rod (901).

6. A device for casting a precision cast stainless steel flowmeter tube according to claim 4, wherein: The pull rod (902) is slidably connected with two abutting blocks (909), the top ends of the two abutting blocks (909) are fixedly connected with the same pressing rod (908), and the bottom ends of the abutting blocks (909) are in contact with the adjacent limiting blocks (910).

7. A device for casting a precision cast stainless steel flowmeter tube according to claim 6, wherein: The cross section of the bottom end of the abutting block (909) is in a trapezoidal structure, and the cross section of the top end of the limiting block (910) is in a trapezoidal structure.

8. A device for casting a precision cast stainless steel flowmeter tube according to claim 3, wherein: The middle part of the first connecting rod (5) is provided with a groove (10), and the sliding block (904) and the first friction plate (906) are in a T-shaped structure.

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