A pulling rod mechanism for aluminum block out of a crucible

Abstract

The utility model relates to aluminium block production equipment technical field, concretely relates to a pull rod mechanism for aluminium block out of furnace in crucible, including frame, the frame is provided with the top rod in, the top of frame is provided with the driving source for driving top rod longitudinal displacement, the outside of top rod is provided with pressure sheet, the lower extreme of top rod is provided with the top block that sticks with the inner side wall of pressure sheet, through the many pressure sheets through the setting groove surrounding formation and top block outer contour stick together's setting chamber, and the design that top block diameter is from below to above gradually changes, make pressure sheet open amplitude can follow top rod displacement flexible adjustment, can adapt to the ejection demand of different size aluminium block, also can provide stable orientation for top block through the dynamic change of setting chamber, guarantee the stable operation of hoisting operation.

Description

Technical Field

[0001] This utility model relates to the technical field of aluminum block production equipment, specifically to a pull rod mechanism for removing aluminum blocks from a crucible. Background Technology

[0002] After the molten aluminum is electrolytically purified and cooled in the crucible, a 50mm-60mm diameter extraction hole is drilled into the aluminum block to remove it. The traditional method involves a crane hook lifting a reaming tool, which is then manually inserted into the extraction hole. The crane then lifts the aluminum block. However, when manually inserting the reaming tool, the aluminum block may loosen or shift after cooling, easily causing the tool to slip. Furthermore, the operator must be in close proximity to the lifting area, lacking effective protection, which can also cause injury. Later, a robotic arm was used to assist in inserting the tool, but uneven force during insertion can scratch the inner wall of the extraction hole, affecting the subsequent extraction of the aluminum block. Also, when the aluminum block is highly adhered to the crucible wall, this method can directly cause the tool to separate from the block, requiring manual prying to remove the block. While this reduces manpower, it doesn't effectively reduce the risk of the tool detaching during lifting operations. Utility Model Content

[0003] To address the aforementioned issues, this utility model provides a pull rod mechanism for removing aluminum blocks from a crucible. The pull rod pushes the surrounding pressure plates outwards, causing them to abut against the inner wall of the lifting hole. Then, a drive source moves the aluminum block upwards. Compared to traditional enlarged hole lifting devices, this mechanism increases the connection strength with the aluminum block. The placement chamber and top block work together to secure the aluminum block, enhancing the connection strength, preventing disengagement, and improving the stability of the lifting operation.

[0004] To achieve the above objectives, this utility model embodiment adopts the following technical solution: a pull rod mechanism for removing aluminum blocks from a crucible, comprising a frame, a push rod disposed within the frame, a drive source disposed above the frame for driving the push rod to perform longitudinal displacement, a pressure plate disposed outside the push rod, a top block disposed at the lower end of the push rod that fits against the inner sidewall of the pressure plate, and a reset mechanism disposed at the lower part of the frame outside the pressure plate.

[0005] As a further improvement to the above technical solution: The pressure plates are multiple, and each pressure plate has a storage groove on its inner side wall at the lower end. The multiple storage grooves form a storage chamber that fits the outer contour of the top block.

[0006] The diameter of the top block gradually decreases from bottom to top, and the whole block is distributed in a frustum shape.

[0007] Each pressure plate is equipped with a connecting block at its upper part, and the frame is equipped with a rotating shaft that is rotatably connected to the connecting block.

[0008] The drive source is a screw jack, and a connecting rod is provided between the drive source and the top rod. A grease bearing seat is provided on the upper part of the connecting rod.

[0009] The reset mechanism includes a positioning sleeve, and a clamping bolt is provided on the side wall of the positioning sleeve.

[0010] A spring seat corresponding to the position of the clamping bolt is provided on the outer wall of the pressure plate, and a return spring is provided on the spring seat.

[0011] The number of clamping bolts is multiple, and they are evenly distributed along the height direction of the pressure plate.

[0012] The beneficial effects of this utility model embodiment are as follows: The pull rod mechanism for removing aluminum blocks from a crucible includes a frame, a top rod is provided inside the frame, a drive source for driving the top rod to move longitudinally is provided above the frame, a pressure plate is provided outside the top rod, and a top block that fits against the inner wall of the pressure plate is provided at the lower end of the top rod. Multiple pressure plates are arranged in a placement groove to form a placement chamber that fits against the outer contour of the top block. The design of the top block diameter gradually changing from bottom to top allows the opening amplitude of the pressure plate to be flexibly adjusted with the displacement of the top rod. This can not only adapt to the ejection requirements of aluminum blocks of different sizes, but also provide stable guidance for the top block through the dynamic change of the placement chamber, ensuring the stable progress of the hoisting operation. Meanwhile, the clamping bolts are evenly distributed along the height of the pressure plate, and the preload of the return spring can be adjusted according to the actual working scenario, so that the pressure plate is always in contact with the outer wall of the top rod, providing power for the return of the pressure plate after operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the pressure plate in this utility model; Figure 4 This is a schematic diagram of the top rod structure in this utility model; Figure 5 This is a schematic diagram of the positioning sleeve in this utility model.

[0014] In the diagram: 1. Frame; 2. Top rod; 3. Drive source; 4. Pressure plate; 5. Top block; 6. Storage slot; 7. Storage chamber; 8. Connecting block; 9. Rotary shaft; 10. Adapter rod; 11. Grease bearing seat; 12. Positioning sleeve; 13. Clamping bolt; 14. Spring seat; 15. Return spring. Detailed Implementation

[0015] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0016] See Figure 1-5 As shown in the figure, this utility model embodiment discloses a pull rod mechanism for removing aluminum blocks from a crucible, including a frame 1, a push rod 2, a drive source 3, a pressure plate 4, a top block 5, and a reset mechanism. The push rod 2 is longitudinally arranged inside the frame 1, and the drive source 3 for driving the push rod 2 to make longitudinal displacement is mounted on the top of the frame 1. Multiple pressure plates 4 are sleeved on the outside of the push rod 2, and a frustoconical top block 5 is provided at the lower end. The diameter of the top block 5 gradually decreases from bottom to top, and its outer contour fits against the inner sidewall of the pressure plate 4. Each pressure plate 4 has a storage groove 6 on its lower inner wall. The storage grooves 6 of multiple pressure plates 4 together form a storage chamber 7 that is completely fitted to the outer contour of the top block 5. At the same time, a connecting block 8 is fixedly installed on the upper part of each pressure plate 4, and a rotating shaft 9 is installed at the corresponding position on the frame 1. The connecting block 8 and the rotating shaft 9 achieve a rotatable connection between the pressure plate 4 and the frame 1 through rotational cooperation. The drive source 3 specifically adopts a screw jack. In order to achieve a stable connection and power transmission between the drive source 3 and the top rod 2, a transition rod 10 is provided between the two, and a bearing seat 11 is installed on the upper part of the transition rod 10 to improve the smoothness and stability of the transmission process. The lower part of the frame 1 is also provided with a reset mechanism located outside the pressure plate 4. The reset mechanism includes a positioning sleeve 12, and multiple clamping bolts 13 are evenly distributed on the side wall of the positioning sleeve 12 along the height direction of the pressure plate 4. Correspondingly, a spring seat 14 corresponding to the position of the clamping bolt 13 is provided on the outer side wall of the pressure plate 4. A reset spring 15 is mounted on the spring seat 14. The reset function of the pressure plate 4 after action is realized through the cooperation of the clamping bolt 13 and the reset spring 15.

[0017] The working principle / assembly process of this solution is as follows: In the non-operating state, the top rod 2 maintains the initial longitudinal position, the frustum-shaped top block 5 is located in the storage chamber 7 surrounded by multiple pressure plates 4 storage slots 6, and the outer contour of the top block 5 is in contact with the inner side wall of the pressure plates 4; in the reset mechanism, the reset spring 15 is in a natural or slightly pre-compressed state. Upon receiving the furnace unloading operation command, the drive source (screw jack) 3 above the frame 1 is activated, transmitting longitudinal driving force to the top rod 2 through the adapter rod 10. Since the upper part of the adapter rod 10 is equipped with a bearing seat 11, the frictional resistance during the transmission process can be effectively reduced, ensuring that the top rod 2 moves stably upward along the inside of the frame 1. The frustum-shaped top block 5 at its lower end also moves synchronously with the top rod 2. As the top block 5 continues to move, its diameter gradually decreases from bottom to top, and its outer wall will exert an outward pushing force on the inner wall of the pressure plate 4. At this time, the pressure plate 4 rotates outward around the rotating shaft 9 connected to the frame 1 as the fulcrum. After multiple pressure plates 4 open simultaneously, they will form an outward supporting force on the side wall of the lifting hole of the aluminum block in the crucible, so that the entire device is connected to the aluminum block, and then drive the aluminum block to move upward to complete the unloading operation.

[0018] When the drive source 3 is started in reverse, the push rod 2 is reset via the adapter rod 10. The reset spring 15 on the spring seat 14 on the outer wall of the pressure plate 4, after losing the outward pushing force applied by the top block 5, applies an inward pushing force to the pressure plate 4 through its own elastic restoring force, pushing the pressure plate 4 to rotate inward around the rotating shaft 9 to reset, until the inner wall of the pressure plate 4 is once again in contact with the outer contour of the top block 5, and the storage chamber 7 returns to its initial shape; after the push rod 2 is fully reset, the drive source 3 stops running.

[0019] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0022] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A pull rod mechanism for unloading aluminum blocks from a crucible, comprising a frame (1), characterized in that: The frame (1) is provided with a push rod (2), and a drive source (3) for driving the push rod (2) to make longitudinal displacement is provided above the frame (1). A pressure plate (4) is provided outside the push rod (2). A top block (5) that fits against the inner side wall of the pressure plate (4) is provided at the lower end of the push rod (2). A reset mechanism located outside the pressure plate (4) is provided at the lower part of the frame (1).

2. The pull rod mechanism for removing aluminum blocks from a crucible according to claim 1, characterized in that: The number of pressure plates (4) is multiple, and each pressure plate (4) has a storage groove (6) on the inner side wall at the lower end. Multiple storage grooves (6) form a storage chamber (7) that fits the outer contour of the top block (5).

3. The pull rod mechanism for removing aluminum blocks from a crucible according to claim 2, characterized in that: The diameter of the top block (5) gradually decreases from bottom to top, and the whole is distributed in a frustum shape.

4. The pull rod mechanism for removing aluminum blocks from a crucible according to claim 2, characterized in that: Each pressure plate (4) is provided with a connecting block (8) on its upper part, and the frame (1) is provided with a rotating shaft (9) that is rotatably connected to the connecting block (8).

5. The pull rod mechanism for unloading aluminum blocks from a crucible according to claim 1, characterized in that: The drive source (3) is a screw jack, and a transition rod (10) is provided between the drive source (3) and the top rod (2). A grease bearing seat (11) is provided on the upper part of the transition rod (10).

6. The pull rod mechanism for unloading aluminum blocks from a crucible according to claim 1, characterized in that: The reset mechanism includes a positioning sleeve (12), and a clamping bolt (13) is provided on the side wall of the positioning sleeve (12).

7. The pull rod mechanism for unloading aluminum blocks from a crucible according to claim 6, characterized in that: The outer wall of the pressure plate (4) is provided with a spring seat (14) corresponding to the position of the clamping bolt (13), and a return spring (15) is provided on the spring seat (14).

8. The pull rod mechanism for unloading aluminum blocks from a crucible according to claim 6, characterized in that: The number of clamping bolts (13) is multiple, and they are evenly distributed along the height direction of the pressure plate (4).

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