A riser positioning device

Abstract

This utility model relates to the field of casting technology and discloses a riser positioning device, including a casting platform. A first fixing plate and a second fixing plate are fixedly connected to the top of the casting platform. A rotating column is rotatably connected to the inner wall of the second fixing plate. A torsion spring is sleeved on the outer wall of the rotating column. A pressing plate is fixedly connected to the outer wall of the rotating column. A limiting column is fixedly connected to the bottom of the pressing plate. A riser is detachably connected to the inner wall of the casting platform. The outer wall of the limiting column is detachably connected to the inner wall of the riser. One end of the torsion spring is fixedly connected to the inner side of the second fixing plate, and the other end of the torsion spring is fixedly connected to the outer side of the pressing plate. This utility model, through a disassembly component that allows for the removal of the riser, enables timely replacement of the riser when its position needs to be adjusted or when it needs to be replaced, thereby improving the efficiency of the casting process.

Description

Technical Field

[0001] This utility model relates to the field of casting technology, and in particular to a riser positioning device. Background Technology

[0002] During casting, the liquid metal shrinks in volume as it cools and solidifies. The presence of risers helps prevent shrinkage cavities and porosity defects. Gases in the mold cavity and molten metal can also be released through risers during the casting process, reducing porosity issues. The liquid level at the riser reflects whether the casting is complete, and excess molten metal can overflow through the riser, preventing the molten metal from washing away from the mold cavity.

[0003] Riser positioning devices are used to precisely determine the position of the riser in the mold, ensuring that its relative position with the cavity, gating system, and other structures meets the casting process requirements. Accurate positioning allows the riser to effectively fill shrinkage cavities generated during casting solidification, reducing defects such as shrinkage cavities and porosity. It also avoids problems such as poor molten metal flow and uneven heat dissipation caused by riser position deviations, improving the dimensional accuracy and internal structure uniformity of the casting.

[0004] In the prior art, some riser positioning devices generally ensure the positioning and installation of the riser by fixing it inside the casting cavity. However, fixing it to the casting cavity means that if the riser position needs to be adjusted during the casting process, the cavity needs to be disassembled and modified, which will greatly increase the downtime and affect the continuity of the production line. Furthermore, if the riser is damaged, the entire positioning device needs to be replaced, which is costly. Therefore, a riser positioning device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a riser positioning device, which aims to improve the problem that some existing riser positioning devices generally fix the riser inside the casting cavity to ensure the positioning of the riser. This installation causes the riser position to need to be adjusted during the casting process, which requires disassembly and modification of the cavity, greatly increasing downtime and affecting the continuity of the production line.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A riser positioning device includes a casting platform, a first fixing plate fixedly connected to the top of the casting platform, a second fixing plate fixedly connected to the top of the casting platform, a rotating column rotatably connected to the inner wall of the second fixing plate, a torsion spring sleeved on the outer wall of the rotating column, a pressing plate fixedly connected to the outer wall of the rotating column, a limiting column fixedly connected to the bottom of the pressing plate, a riser detachably connected to the inner wall of the casting platform, and the outer wall of the limiting column detachably connected to the inner wall of the riser.

[0008] As a further description of the above technical solution:

[0009] One end of the torsion spring is fixedly connected to the inner side of the second fixing plate, and the other end of the torsion spring is fixedly connected to the outer side of the pressing plate.

[0010] As a further description of the above technical solution:

[0011] The other end of the rotating column is rotatably connected to the inner wall of the fixed plate, and a sealing ring is detachably connected to the bottom of the riser;

[0012] As a further description of the above technical solution:

[0013] The riser has a limiting hole on its inner wall, and the outer wall of the limiting post is detachably connected to the inner wall of the limiting hole.

[0014] As a further description of the above technical solution:

[0015] The bottom of the riser is fixedly connected to multiple mounting posts, and the outer wall of the mounting posts is slidably connected to the inner wall of the sealing ring.

[0016] As a further description of the above technical solution:

[0017] The inner wall of the casting platform is fixedly connected to a casting ring, and the outer walls of the plurality of mounting columns are detachably connected to the inner wall of the casting ring.

[0018] As a further description of the above technical solution:

[0019] The bottom of the sealing ring is detachably connected to the top of the casting ring, and the top of the riser is fixedly connected with multiple handles.

[0020] This utility model has the following beneficial effects:

[0021] In this invention, pressing the pressing plate drives the rotating column to rotate. At this time, under the control of the torsion spring, the other end of the pressing plate is lifted up. The pressing plate then drives the limiting column to disengage from the limiting hole opened at the top of the riser. Then, the riser is removed from the inner wall of the casting table by the handle. This allows the riser to be replaced in a timely manner when the riser position needs to be adjusted or the riser needs to be replaced, thereby improving the work efficiency during casting. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a riser positioning device proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the sealing ring of a riser positioning device proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the riser structure of a riser positioning device proposed in this utility model;

[0025] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0026] Legend:

[0027] 1. Casting platform; 2. Riser; 3. Rotating column; 4. Torsion spring; 5. Fixing plate one; 6. Pressing plate; 7. Limiting column; 8. Fixing plate two; 9. Limiting hole; 10. Mounting column; 11. Sealing ring; 12. Casting ring; 13. Handle. Detailed Implementation

[0028] 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.

[0029] Reference Figures 2 to 4 An embodiment of this utility model provides a riser 2 positioning device, including a casting platform 1. A fixing plate 5 is fixedly connected to the top of the casting platform 1. The fixing plate 5 provides an installation support point for one end of the rotating column 3 to limit the axial position of the rotating column 3. A fixing plate 8 is fixedly connected to the top of the casting platform 1. The fixing plate 8 provides an installation base for the other end of the rotating column 3 and the torsion spring 4. The rotating column 3 is rotatably connected to the inner wall of the fixing plate 8. The rotating column 3 can rotate around its own axis on the inner wall of the fixing plate 8 to serve as a fulcrum for the rotation of the pressing plate 6. The outer wall of the rotating column 3 is fitted with a torsion spring 4. The torsion spring 4 is fitted on the rotating column 3 and can undergo elastic deformation with the rotation of the rotating column 3 to store and release potential energy.

[0030] A pressing plate 6 is fixedly connected to the outer wall of the rotating column 3. The pressing plate 6 is fixedly connected to the rotating column 3 and can rotate with the rotating column 3 to achieve pressing and limiting functions. A limiting post 7 is fixedly connected to the bottom of the pressing plate 6. The limiting post 7 is used to insert into the limiting hole 9 of the riser 2 to achieve positioning and limiting of the riser 2. The inner wall of the casting table 1 is detachably connected to the riser 2. The detachable connection of the riser 2 facilitates installation and disassembly according to process requirements. The outer wall of the limiting post 7 is detachably connected to the inner wall of the riser 2. The positioning and fixing of the riser 2 is achieved through the detachable connection between the limiting post 7 and the inner wall of the riser 2. One end of the torsion spring 4 is fixedly connected to the inner side of the fixing plate 2. The inner side of the fixing plate 2 provides a fixing point for one end of the torsion spring 4 to limit the axial movement of the torsion spring 4. The other end of the torsion spring 4 is fixedly connected to the outer side of the pressing plate 6. The outer side of the pressing plate 6 provides a connection point for the other end of the torsion spring 4, so that the torsion spring 4 can store and release elastic potential energy through the rotation of the pressing plate 6.

[0031] Reference Figures 1 to 3 The other end of the rotating column 3 is rotatably connected to the inner wall of the fixed plate 5. The inner wall of the fixed plate 5 provides rotational support for the other end of the rotating column 3 to ensure the rotational stability of the rotating column 3. The bottom of the riser 2 is detachably connected to a sealing ring 11. The sealing ring 11 is detachably connected for easy replacement and maintenance, and at the same time provides sealing and positioning for the installation of the riser 2. The inner wall of the riser 2 is provided with a limiting hole 9. The limiting hole 9 is used to cooperate with the limiting column 7 to realize the positioning and limiting of the riser 2. The outer wall of the limiting column 7 is detachably connected to the inner wall of the limiting hole 9. The locking and unlocking of the positioning state of the riser 2 is realized through the detachable connection between the limiting column 7 and the limiting hole 9.

[0032] Multiple mounting posts 10 are fixedly connected to the bottom of riser 2. These posts 10 are inserted into the mounting holes of sealing ring 11 and casting ring 12 to achieve initial positioning and installation of riser 2. The outer wall of the mounting post 10 is slidably connected to the inner wall of sealing ring 11. This slidable connection facilitates alignment and positioning of riser 2 during installation, while ensuring that the mounting post 10 passes through sealing ring 11. A casting ring 12 is fixedly connected to the inner wall of casting platform 1, providing support and positioning for riser 2 installation. The outer walls of multiple mounting columns 10 are detachably connected to the inner wall of the casting ring 12. The detachable connection between the mounting columns 10 and the inner wall of the casting ring 12 achieves a fixed connection between the riser 2 and the casting ring 12. The bottom of the sealing ring 11 is detachably connected to the top of the casting ring 12. The detachable connection between the sealing ring 11 and the top of the casting ring 12 facilitates installation and disassembly, while forming a sealing structure to prevent molten metal leakage. The top of the riser 2 is fixedly connected with multiple handles 13, which provide force application points for disassembling the riser 2, making it convenient for operators to disassemble the riser 2.

[0033] Working principle: When the riser 2 needs to be installed on the inner wall of the casting platform 1 and on top of the casting ring 12, first place the sealing ring 11 on top of the casting ring 12 and align the mounting hole inside the sealing ring 11 with the mounting hole on top of the casting ring 12. Then, press one end of the pressing plate 6. The pressing of one end of the pressing plate 6 causes the other end of the pressing plate 6 to lift up. At this time, align the riser 2 along with the mounting post 10 at the bottom with the hole inside the sealing ring 11 and the hole on top of the casting ring 12 and install it in. Then, release the pressing plate 6. At this time, the torsion spring 4 releases its elastic potential energy and locks the limiting post 7 at the other end of the pressing plate 6 into the top of the riser 2. The inner wall of the limiting hole 9 is used to position and install the riser 2, accurately fixing the riser 2 to the mold. This ensures that the relative position of the riser 2 and the casting cavity meets the process design requirements, preventing insufficient feeding due to positional deviation, and thus avoiding defects such as shrinkage cavities and porosity. When disassembly is required, pressing the pressing plate 6 drives the rotating column 3 to rotate. At this time, under the control of the torsion spring 4, the other end of the pressing plate 6 is lifted up. The pressing plate 6 then drives the limiting column 7 to disengage from the limiting hole 9 at the top of the riser 2. Then, the riser 2 is removed from the inner wall of the casting table 1 by using the handle 13.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A feeder positioning device comprising a casting table (1), characterized in that: The top of the casting platform (1) is fixedly connected to a fixing plate one (5), the top of the casting platform (1) is fixedly connected to a fixing plate two (8), the inner wall of the fixing plate two (8) is rotatably connected to a rotating column (3), the outer wall of the rotating column (3) is fitted with a torsion spring (4), the outer wall of the rotating column (3) is fixedly connected to a pressing plate (6), the bottom of the pressing plate (6) is fixedly connected to a limiting column (7), the inner wall of the casting platform (1) is detachably connected to a riser (2), and the outer wall of the limiting column (7) is detachably connected to the inner wall of the riser (2).

2. The riser positioning device according to claim 1, characterized in that: One end of the torsion spring (4) is fixedly connected to the inner side of the fixing plate (8), and the other end of the torsion spring (4) is fixedly connected to the outer side of the pressing plate (6).

3. The riser positioning device according to claim 1, characterized in that: The other end of the rotating column (3) is rotatably connected to the inner wall of the fixed plate (5), and the bottom of the riser (2) is detachably connected to a sealing ring (11).

4. The riser positioning device according to claim 1, characterized in that: The riser (2) has a limiting hole (9) on its inner wall, and the outer wall of the limiting post (7) is detachably connected to the inner wall of the limiting hole (9).

5. A riser positioning device according to claim 3, characterized in that: The bottom of the riser (2) is fixedly connected to a plurality of mounting posts (10), and the outer wall of the mounting posts (10) is slidably connected to the inner wall of the sealing ring (11).

6. A riser positioning device according to claim 5, characterized in that: The inner wall of the casting platform (1) is fixedly connected to a casting ring (12), and the outer walls of the plurality of mounting columns (10) are detachably connected to the inner wall of the casting ring (12).

7. A riser positioning device according to claim 6, characterized in that: The bottom of the sealing ring (11) is detachably connected to the top of the casting ring (12), and the top of the riser (2) is fixedly connected with a plurality of handles (13).

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