A molten metal weighing device for centrifugal pipe casting production

Abstract

This utility model discloses a molten metal weighing device for centrifugal casting pipe production, including a weighing platform, a crucible disposed above the weighing platform, support legs disposed at the bottom of the weighing platform, and an installation groove formed at the bottom of the weighing platform, with a fixing block engaged with the inner wall of the installation groove. This utility model relates to the field of centrifugal casting pipe technology. This molten metal weighing device for centrifugal casting pipe production, through the cooperation of the installation groove, fixing block, fixing groove, and spring, allows workers to quickly separate the weighing platform from the support legs and install a suitable model of weighing platform as needed, accelerating changeover speed. It not only significantly reduces equipment downtime and improves production continuity but also enables tool-free platform disassembly, avoiding the cumbersome bolt disassembly and assembly steps of traditional methods, reducing the skill requirements for operators, decreasing manpower input, and greatly improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal casting technology, specifically to a metal molten material weighing device for centrifugal casting production. Background Technology

[0002] The molten metal weighing device for centrifugal casting pipe production is a device used to accurately measure and control the weight of molten metal poured into the mold during the centrifugal casting pipe production process.

[0003] In traditional centrifugal casting pipe production, the molten metal weighing device is used by workers to ensure that the amount of molten metal poured each time is accurate, so as to guarantee the quality and dimensional accuracy of the cast pipe.

[0004] However, in actual use, the weighing platform and the support structure of the traditional centrifugal casting pipe production molten metal weighing device are usually fixed by bolts. When a change is needed, multiple workers are required to work together, which greatly increases downtime and reduces production efficiency. In addition, the size of the weighing platform varies greatly for different specifications of crucibles. Traditional bolt fixing may require re-machining the bolt holes of the support structure or even replacing the entire support frame, which greatly increases production costs. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a metal molten material weighing device for centrifugal casting pipe production. This device solves the problem that in practical use, the weighing platform and support structure are typically fixed with bolts. When a change of model is required, multiple workers are needed, significantly increasing downtime and reducing production efficiency. Furthermore, the size of the weighing platform varies greatly depending on the crucible size, and traditional bolt fixing may require remachining the bolt holes in the support structure or even replacing the entire support frame, greatly increasing production costs.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a metal molten material weighing device for centrifugal pipe casting production, comprising a weighing platform, a crucible disposed above the weighing platform, a support leg disposed at the bottom of the weighing platform, an installation groove formed at the bottom of the weighing platform, a fixing block being engaged with the inner wall of the installation groove, the bottom of the fixing block being fixedly connected to the top of the support leg, a fixing groove formed on the outer wall of the fixing block, and a spring being engaged with the inner wall of the fixing groove.

[0007] Preferably, the side wall of the weighing platform is provided with a connecting groove, the inner wall of the connecting groove is slidably engaged with a connecting block, the outer wall of the connecting block is fixedly connected to a connecting rod on the side away from the connecting groove, the top of the connecting block is fixedly connected to a fixing clip, and the outer wall of the fixing clip abuts against the outer wall of the crucible.

[0008] Preferably, a limiting block is fixedly connected to the top of the weighing platform, and a limiting groove is fitted onto the outer wall of the limiting block, with the limiting groove located at the bottom of the crucible.

[0009] Preferably, an elastic pad is fixedly connected to the bottom of the support leg, a weighing sensor is fixedly connected to the bottom of the elastic pad, and a base is fixedly connected to the bottom of the weighing sensor.

[0010] Preferably, each of the four top corners of the weighing platform is fixedly connected with a connecting ring. Beneficial effects

[0011] This utility model provides a molten metal weighing device for centrifugal pipe casting production. It offers the following advantages: This molten metal weighing device for centrifugal pipe casting production, through the cooperation of the mounting groove, fixing block, fixing groove, and spring plate, allows workers to quickly separate the weighing platform from the support legs and install the appropriate model of weighing platform as needed, accelerating changeover speed. This not only significantly reduces equipment downtime and improves production continuity but also enables tool-free platform disassembly, avoiding the cumbersome bolt installation and removal steps of traditional methods, reducing the skill requirements for operators, decreasing manpower input, and greatly improving production efficiency.

[0012] The crucible is secured by the connection groove, connecting block, connecting rod, and fixing clip, preventing it from tipping over due to impact during the pouring of molten metal. This ensures the stability and safety of the entire molten metal weighing device for centrifugal pipe casting production. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the appearance of the present utility model;

[0014] Figure 2 for Figure 1 A structural schematic diagram of the weighing platform, support legs, and mounting groove;

[0015] Figure 3 for Figure 2 A schematic diagram of the structure of the fixing block, fixing groove, and spring.

[0016] Figure 4 for Figure 1 A structural schematic diagram of the connecting groove, connecting block, and connecting rod;

[0017] Figure 5 for Figure 1 Cross-sectional view of the crucible.

[0018] In the diagram: 1. Weighing platform; 2. Crucible; 3. Support leg; 4. Mounting slot; 5. Fixing block; 6. Fixing slot; 7. Spring; 8. Connecting slot; 9. Connecting block; 10. Connecting rod; 11. Fixing clip; 12. Limiting block; 13. Limiting slot; 14. Elastic pad; 15. Weighing sensor; 16. Base; 17. Connecting ring. 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] In practical use, the weighing platform and the support structure of the traditional centrifugal casting pipe production molten metal weighing device are usually fixed by bolts. When a change is needed, multiple workers are required to work together, which greatly increases downtime and reduces production efficiency. In addition, the size of the weighing platform varies greatly for different specifications of crucibles. Traditional bolt fixing may require remachining of the bolt holes in the support structure or even replacement of the entire support frame, which greatly increases production costs.

[0021] In view of this, the present invention provides a molten metal weighing device for centrifugal casting pipe production. This molten metal weighing device for centrifugal casting pipe production, through the cooperation of the mounting groove, fixing block, fixing groove and spring, enables the operator to quickly separate the weighing platform from the support leg and install the appropriate model of weighing platform as needed, thereby speeding up the changeover speed. It not only significantly reduces equipment downtime and improves production continuity, but also enables the platform to be disassembled without tools, avoiding the cumbersome steps of bolt disassembly and assembly in the traditional method, reducing the skill requirements of the operator, reducing manpower input, and greatly improving production efficiency.

[0022] Example 1, by Figure 1-5 It is known that a metal liquid weighing device for centrifugal casting pipe production includes a weighing platform 1, a crucible 2 is provided above the weighing platform 1, a support leg 3 is provided at the bottom of the weighing platform 1, an installation groove 4 is provided at the bottom of the weighing platform 1, a fixing block 5 is snapped into the inner wall of the installation groove 4, the bottom of the fixing block 5 is fixedly connected to the top of the support leg 3, a fixing groove 6 is provided on the outer wall of the fixing block 5, and a spring 7 is snapped into the inner wall of the fixing groove 6.

[0023] In the specific implementation process, it is worth noting that the weighing platform 1 is generally square-shaped and mainly used to support the crucible 2 and the molten metal inside the crucible 2. Its material can be Q345R heat-resistant steel with a ceramic coating on the surface. The crucible 2 is generally cylindrical and mainly used to hold the molten metal. Its material can be selected according to actual needs, for example, a clay-graphite crucible. Four support legs 3 are provided, located at the four corners of the bottom of the weighing platform 1, mainly used to support the weighing platform 1. They are generally square-shaped and can be made of 42CrMo alloy forged steel. There are four mounting slots 4. Viewed from the side, their cross-section resembles an 'L' shape; viewed from the front, they resemble a 'T' shape. Four fixing blocks 5 are provided, each snapping into the interior of one of the four mounting slots 4. The overall shape resembles a 'T', with reinforcing ribs on the front and back. Two fixing grooves 6 are respectively located on the lower part of the outer walls on both sides. The fixing grooves 6 have an 'L' shaped cross-section. The inner walls of the two fixing grooves 6 respectively engage the two ends of spring pieces 7. Two spring pieces 7 are provided on each fixing block 5. The spring pieces 7 are made of 50CrVA spring steel; the specific elastic coefficient can be selected according to actual needs to meet working requirements. The spring 7 uses its elastic force to press the top of the fixing block 5 against the inner wall of the mounting groove 4. Even in the event of thermal expansion and contraction, this effectively reduces the relative displacement between the weighing platform 1 and the support leg 3, thereby improving the stability of the molten metal weighing device for centrifugal pipe casting production. After a period of operation, the spring 7 needs to be replaced periodically to prevent its elasticity from failing. The spring 7 is only one fixing method; other parts or structures can be used to perform the same function as the spring 7, as long as the fixing effect is achieved. When a change or adjustment is required, the operator first... The equipment lifts the weighing platform 1, and then, through the heat insulation tool, it drives the support leg 3 to move downward. The support leg 3 moves downward, thereby driving the fixing block 5 to move downward. The fixing block 5 squeezes the spring 7. Under the influence of the force, the opening of the spring 7 gradually becomes smaller, so that its two ends move inside the fixing groove 6. At the same time, the worker drives the support leg 3 to slide along the inside of the mounting groove 4 until the fixing block 5 can move out of the mounting groove 4. At this time, one support leg 3 is removed. The other three support legs 3 are removed in the same way. When a new weighing platform 1 needs to be installed on the support leg 3, the above actions are reversed.

[0024] Furthermore, the side wall of the weighing platform 1 is provided with a connecting groove 8, the inner wall of the connecting groove 8 is slidably engaged with a connecting block 9, the outer wall of the connecting block 9 is fixedly connected to a connecting rod 10 on the side away from the connecting groove 8, and the top of the connecting block 9 is fixedly connected with a fixing clip 11, the outer wall of the fixing clip 11 is pressed against the outer wall of the crucible 2.

[0025] In the specific implementation process, it is worth noting that there are four connecting grooves 8, located in the four directions of the weighing platform 1. Rectangular grooves are formed on both sides of their inner walls. The connecting block 9 is generally shaped like a square plate, with rectangular sliders on both sides of its outer walls. These sliders can move within the grooves on both sides of the inner wall of the connecting groove 8, thus limiting the movement of the connecting block 9. There are four connecting blocks 9, made of the same material as the weighing platform 1. There are four connecting rods 10, generally cylindrical in shape, with no length limit, as long as they meet the operational requirements. Their ends are connected to an external hydraulic device, which allows all four connecting rods 10 to move simultaneously. These rods are made of the same material as the connecting blocks 9. There are four fixing clips 11, resembling a 'C' shape when viewed from the top. The included angle of the 'C' shape can be set... When set at 90 degrees, the material can be GH3030 high-temperature alloy, and its outer wall can also be coated with a high-temperature resistant ceramic coating. When it is necessary to remove the crucible 2 on the top of the weighing platform 1, the operator connects the power supply of the external hydraulic control device and starts the hydraulic control device. The hydraulic control device simultaneously drives the four connecting rods 10 to move. The four connecting rods 10 drive the four connecting blocks 9 to slide in their respective connecting grooves 8. The four connecting blocks 9 drive their respective fixing clips 11 to move. The four fixing clips 11 gradually leave the outer wall of the crucible 2. At this time, the crucible 2 can be removed. When it is necessary to fix a new crucible 2 to the top of the weighing platform 1, the operator reverses the above actions to achieve the fixing effect, thereby improving the adaptability and flexibility of the metal liquid weighing device for centrifugal casting pipe production.

[0026] Furthermore, a limiting block 12 is fixedly connected to the top of the weighing platform 1, and a limiting groove 13 is sleeved on the outer wall of the limiting block 12. The limiting groove 13 is opened at the bottom of the crucible 2.

[0027] In the specific implementation process, it is worth noting that the limiting block 12 is similar to a circular plate, and the limiting groove 13 has the same shape as the limiting block 12. Through the cooperation of the two, the crucible 2 is axially positioned, ensuring that the subsequent fixing clip 11 can achieve the best fixing effect, thereby improving the convenience of installing the crucible 2.

[0028] Example 2, by Figure 1-5 It can be seen that the bottom of the support leg 3 is fixedly connected to an elastic pad 14, the bottom of the elastic pad 14 is fixedly connected to a weighing sensor 15, and the bottom of the weighing sensor 15 is fixedly connected to a base 16.

[0029] In the specific implementation process, it is worth noting that four elastic pads 14 are provided, which are composed of a three-layer structure: two layers of polyurethane buffer pads and a metal corrugated pipe composite structure on one side. The metal corrugated pipe composite structure is located in the middle of the two polyurethane buffer pads. The polyurethane buffer pads can achieve buffering and shock absorption, reducing the damage to the weighing sensor 15 from impact. Four weighing sensors 15 are provided, which are respectively installed on the inner wall of the base 16. The model of the weighing sensor 15 can be selected according to actual needs. For example, the high temperature resistant HBM-T12AD1 model can be selected. Four bases 16 are provided, and their material is the same as that of the support legs 3. They are installed at the bottom of the weighing sensor 15 to support it. Other connecting structures can also be added to the bottom of the base 16 to facilitate the movement of the support legs 3. In actual weighing, when the molten metal is poured and an instantaneous impact occurs, the polyurethane buffer pad extends the action time of the force through elastic deformation. This not only protects the weighing sensor 15, but also improves the dynamic weighing accuracy, thereby improving the service life and weighing accuracy of the molten metal weighing device for centrifugal casting pipe production.

[0030] Furthermore, each of the four top corners of the weighing platform 1 is fixedly connected with a connecting ring 17;

[0031] In the specific implementation process, it is worth noting that there are four connecting rings 17, which are made of the same material as the weighing platform 1. When it is necessary to lift the weighing platform 1, the connecting rings 17 can be connected to the external lifting equipment to lift the weighing platform 1 smoothly, thereby improving the mobility of the metal liquid weighing device for centrifugal casting pipe production.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metal molten material weighing device for centrifugal casting pipe production, comprising a weighing platform (1), characterized in that: A crucible (2) is provided above the weighing platform (1), a support leg (3) is provided at the bottom of the weighing platform (1), an installation groove (4) is provided at the bottom of the weighing platform (1), a fixing block (5) is snapped into the inner wall of the installation groove (4), the bottom of the fixing block (5) is fixedly connected to the top of the support leg (3), a fixing groove (6) is provided on the outer wall of the fixing block (5), and a spring (7) is snapped into the inner wall of the fixing groove (6).

2. The metal molten material weighing device for centrifugal casting pipe production according to claim 1, characterized in that: The weighing platform (1) has a connecting groove (8) on its side wall. A connecting block (9) is slidably engaged with the inner wall of the connecting groove (8). A connecting rod (10) is fixedly connected to the outer wall of the connecting block (9) on the side away from the connecting groove (8). A fixing clip (11) is fixedly connected to the top of the connecting block (9). The outer wall of the fixing clip (11) is pressed against the outer wall of the crucible (2).

3. The metal molten material weighing device for centrifugal casting pipe production according to claim 1, characterized in that: The top of the weighing platform (1) is fixedly connected to a limiting block (12), and the outer wall of the limiting block (12) is fitted with a limiting groove (13), which is located at the bottom of the crucible (2).

4. The metal molten material weighing device for centrifugal casting pipe production according to claim 1, characterized in that: An elastic pad (14) is fixedly connected to the bottom of the support leg (3), a weighing sensor (15) is fixedly connected to the bottom of the elastic pad (14), and a base (16) is fixedly connected to the bottom of the weighing sensor (15).

5. A metal molten material weighing device for centrifugal casting pipe production according to claim 1, characterized in that: The weighing platform (1) is fixedly connected to four corners of its top with connecting rings (17).

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