Cast ingot taking device in crucible of self-consuming vacuum furnace

Abstract

The ingot taking device in the crucible of the consumable vacuum furnace comprises a fixing support, a clamping mechanism and a beating mechanism, the two sides of the fixing support are connected with the upper end of the clamping mechanism, the middle of the fixing support is fixedly connected with the upper end of the beating mechanism, and the lower end of the clamping mechanism is used for fixing a flange on the edge of the crucible. The beating mechanism is used for beating the cast ingot in the crucible; the clamping mechanism can move up and down to adjust the height of the crucible, the knocking mechanism comprises a driving motor, a cam, a telescopic rod, a reset spring and a knocking hammer, a machine body of the driving motor is connected with the fixed support, a rotating shaft of the driving motor is fixedly connected with the cam, the telescopic rod is located under the cam, and the reset spring is connected with the telescopic rod in a sleeving mode. The knocking hammer is fixedly connected with the bottom of the telescopic rod, the fixed support is provided with a rail, and the telescopic rod can slide up and down along the rail.

Description

Technical Field

[0001] The utility model relates to the technical field of metal smelting, in particular to a device for taking out ingots from a crucible of a vacuum consumable furnace. Background Art

[0002] After melting 1 to 8 tons of titanium and titanium alloy ingots of various sizes (Φ360mm to Φ920mm), when removing them from the furnace, they sometimes become stuck in the crucible, preventing smooth removal. Existing methods for removing stuck ingots include: 1. The crucible with the stuck ingot is placed on a pit crucible mounting bracket. One person controls an overhead crane to lift a dummy electrode with a sling tied to one end (the dummy electrode has a diameter and weight of 200mm to 380mm and a weight of 100kg to 800kg, depending on the size of the stuck ingot). Three people pull the other end of the sling to a certain height. Then, the three people simultaneously release the slings, causing the dummy electrode to fall from the air under the action of gravity, striking the stuck ingot in the crucible. This process is repeated until the ingot is knocked out. 2. The crucible with the stuck ingot is lifted to a certain height using an overhead crane and then impacted against other ingots, causing them to vibrate and loosen. This method has safety risks, firstly, it is easy to hurt or bruise people; secondly, it is easy to hurt or damage the crucible; thirdly, the process of removing the ingot consumes a lot of manpower and is time-consuming. Summary of the Invention

[0003] In view of this, it is necessary to provide a safe, time-saving and labor-saving ingot taking device for a vacuum consumable furnace crucible.

[0004] A device for taking out ingots from a crucible of a vacuum consumable furnace includes a fixed bracket, a clamping mechanism, and a knocking mechanism. The two sides of the fixed bracket are connected to the upper end of the clamping mechanism, the middle of the fixed bracket is fixedly connected to the upper end of the knocking mechanism, the lower end of the clamping mechanism is used to fix the flange of the edge of the crucible, and the knocking mechanism is used to knock the ingots in the crucible; the clamping mechanism can move up and down to adjust the height of the crucible, and the knocking mechanism includes a driving motor, a cam, a telescopic rod, a reset spring, and a knocking hammer. The body of the driving motor is connected to the fixed bracket, the rotating shaft of the driving motor is fixedly connected to the cam, the telescopic rod is located directly below the cam, the reset spring is sleeved with the telescopic rod, and the knocking hammer is fixedly connected to the bottom of the telescopic rod. The fixed bracket is provided with a track, and the telescopic rod can slide up and down along the track.

[0005] Preferably, the clamping mechanism includes two lifting rods and two clamping claws, the upper ends of the lifting rods are connected to the fixed bracket, the lower ends of the lifting rods are fixedly connected to the clamping claws, and the lifting rods are located on both sides of the knocking mechanism.

[0006] Preferably, the lifting rod is a hydraulic rod, the fixed end of the hydraulic rod is connected to the fixed bracket, and the telescopic end of the hydraulic rod is connected to the clamping claw.

[0007] Preferably, the clamp includes a fixed plate and a movable plate, the fixed plate is fixedly connected to the lifting rod, the movable plate is sleeved and connected to the lifting rod, the movable plate is fixed by a nut, and the fixed bracket is provided with an adjustment slot, and the lifting rod can move horizontally along the adjustment slot to adjust the distance between the lifting rods.

[0008] Preferably, a knocking portion is provided at the upper end of the telescopic rod, the knocking portion is mushroom-shaped, and a reset spring is located between the knocking portion and the track of the fixed bracket.

[0009] Preferably, the percussion hammer is cylindrical.

[0010] Preferably, the driving motor is a servo motor to adjust the rotation speed of the cam.

[0011] Beneficial Effects: To use the ingot removal device for a vacuum consumable furnace crucible, the crucible containing the ingot is first placed directly below the hammer. The clamping mechanism is then lowered to the crucible's flange and fine-tuned horizontally and vertically to ensure it securely grips the crucible's flange. The crucible is then lifted and the bottom liner is removed, allowing the ingot to drop from the crucible. The drive motor is then activated, rotating the cam, which in turn moves the lifting rod up and down, causing the hammer to strike the ingot in the crucible. Because the ingot is relatively tall, typically exceeding one meter, it cannot be removed from the crucible all at once. As the hammering continues, the crucible must be gradually raised to maintain contact between the ingot and the hammer. This process continues until the ingot is knocked out of the crucible. The entire process causes minimal damage to the crucible and, since no human intervention is required, poses no safety concerns. The hammer maintains a stable output, making it highly efficient in removing the ingot from the crucible. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic structural diagram of a preferred angle of the ingot taking device in the crucible of a vacuum consumable furnace of the present invention.

[0013] Figure 2 This is a schematic structural diagram of another preferred angle of the ingot taking device in the crucible of a vacuum consumable furnace of the present invention.

[0014] Figure 3 This is a structural schematic diagram of another preferred angle of the ingot taking device in the crucible of the vacuum consumable furnace of the present invention.

[0015] In the figure: an ingot taking device 10 in a crucible of a vacuum consumable furnace, a fixed bracket 20, an adjusting slot 201, a clamping mechanism 30, a lifting rod 301, a clamping claw 302, a fixed plate 3021, a movable plate 3022, a knocking mechanism 40, a driving motor 401, a cam 402, a telescopic rod 403, a return spring 404, a knocking hammer 405, a crucible 50, and a flange 501. DETAILED DESCRIPTION

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, a brief introduction will be given below to the drawings required for use in the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Please see Figures 1 to 3 A vacuum consumable furnace crucible ingot taking device 10 includes a fixed bracket 20, a clamping mechanism 30, and a knocking mechanism 40. The two sides of the fixed bracket 20 are connected to the upper end of the clamping mechanism 30, the middle part of the fixed bracket 20 is fixedly connected to the upper end of the knocking mechanism 40, the lower end of the clamping mechanism 30 is used to fix the flange of the edge of the crucible, and the knocking mechanism 40 is used to knock the ingot in the crucible; the clamping mechanism 30 can move up and down to adjust the height of the crucible, and the knocking mechanism 40 includes a driving mechanism. Motor 401, cam 402, telescopic rod 403, return spring 404, and knock hammer 405. The body of the drive motor 401 is connected to the fixed bracket 20, the rotating shaft of the drive motor 401 is fixedly connected to the cam 402, the telescopic rod 403 is located directly below the cam 402, the return spring 404 is sleeved and connected to the telescopic rod 403, and the knock hammer 405 is fixedly connected to the bottom of the telescopic rod 403. The fixed bracket 20 is provided with a track, and the telescopic rod 403 can slide up and down along the track.

[0018] The clamping mechanism 30 of the present invention is used to clamp the crucible 50. Due to the relatively strong force exerted by the hammer 405, the clamping mechanism 30 may slip when clamping the crucible 50, thereby reducing the striking effect of the hammer 405. Therefore, the clamping mechanism 30 of the present invention is clamped at the crucible flange 501. Thanks to the support provided by the clamping mechanism 30, the crucible does not slip, thus providing greater stability during the striking of the ingot.

[0019] There is a large friction between the crucible and the ingot, so it is impossible to make the ingot fall off the crucible in one go.

[0020] The utility model realizes repeated pressing of the telescopic rod 403 by the rotation of the cam 402. At the same time, under the action of the reset spring 404, the telescopic rod 403 can be reset after being pressed, thereby realizing repeated hammering of the hammer 405. During the continuous hammering process, the ingot slides off the crucible wall.

[0021] In a preferred embodiment, the clamping mechanism 30 includes two lifting rods 301 and two clamping claws 302. The upper end of the lifting rod 301 is connected to the fixed bracket 20, and the lower end of the lifting rod 301 is fixedly connected to the clamping claw 302. The lifting rod 301 is located on both sides of the knocking mechanism 40.

[0022] Of course, the number of the lifting rods 301 of the clamping mechanism 30 is at least two, and three or four lifting rods 301 evenly distributed on the edge of the crucible can also be implemented.

[0023] Furthermore, the lifting rod 301 is a hydraulic rod, the fixed end of the hydraulic rod is connected to the fixed bracket 20 , and the telescopic end of the hydraulic rod is connected to the clamping claw 302 .

[0024] In another preferred embodiment, the lifting rod 301 is a threaded lifting rod 301 , and the threaded rod is driven to move up or down by a motor, thereby driving the crucible to move up or down.

[0025] In a preferred embodiment, the clamp 302 includes a fixed plate 3021 and a movable plate 3022. The fixed plate 3021 is fixedly connected to the lifting rod 301, and the movable plate 3022 is sleeved and connected to the lifting rod 301. The movable plate 3022 is fixed by a nut. The fixed bracket 20 is provided with an adjustment slot 201, and the lifting rod 301 can move horizontally along the adjustment slot 201 to adjust the distance between the lifting rods 301.

[0026] After the fixed plate 3021 is adjusted to the position, the distance between the movable plate 3022 and the fixed plate 3021 is adjusted according to the thickness of the flange, and finally the movable plate 3022 is fixed by the nut, thereby clamping the flange 501.

[0027] In a preferred embodiment, a mushroom-shaped striking portion is provided at the upper end of the telescopic rod 403, and a return spring 404 is located between the striking portion and the track of the fixed bracket 20. The mushroom-shaped striking portion is less likely to deform during repeated striking, and the curved surface of the cam 402 facilitates its rotation when it is positioned near the telescopic rod 403, preventing it from getting stuck and causing the drive motor 401 to burn out.

[0028] In a preferred embodiment, the hammer 405 is cylindrical. The cylindrical round surface helps to reduce the pressure of the hammer 405 on the ingot, and can also make the force more dispersed, so that each part of the ingot is evenly stressed, and the ingot is easier to slide from the side of the crucible.

[0029] In a preferred embodiment, the driving motor 401 is a servo motor to adjust the rotation speed of the cam 402. By adjusting the rotation speed of the cam 402, the knocking frequency can be adjusted.

[0030] The above disclosure is only a preferred embodiment of the present invention, and it is certainly not intended to limit the scope of the rights of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A device for removing ingots from a crucible of a vacuum consumable furnace, characterized in that: It includes a fixed bracket, a clamping mechanism, and a knocking mechanism. The two sides of the fixed bracket are connected to the upper end of the clamping mechanism, the middle part of the fixed bracket is fixedly connected to the upper end of the knocking mechanism, the lower end of the clamping mechanism is used to fix the flange of the edge of the crucible, and the knocking mechanism is used to knock the ingot in the crucible; the clamping mechanism can move up and down to adjust the height of the crucible, and the knocking mechanism includes a driving motor, a cam, a telescopic rod, a reset spring, and a knocking hammer. The body of the driving motor is connected to the fixed bracket, the rotating shaft of the driving motor is fixedly connected to the cam, the telescopic rod is located directly below the cam, the reset spring is sleeved with the telescopic rod, and the knocking hammer is fixedly connected to the bottom of the telescopic rod. The fixed bracket is provided with a track, and the telescopic rod can slide up and down along the track.

2. The device for removing ingots from a crucible of a vacuum consumable furnace according to claim 1, wherein: The clamping mechanism includes two lifting rods and two clamping claws. The upper ends of the lifting rods are connected to the fixed brackets, and the lower ends of the lifting rods are fixedly connected to the clamping claws. The lifting rods are located on both sides of the knocking mechanism.

3. The device for removing ingots from a crucible of a vacuum consumable furnace according to claim 2, wherein: The lifting rod is a hydraulic rod, the fixed end of the hydraulic rod is connected to the fixed bracket, and the telescopic end of the hydraulic rod is connected to the clamping claw.

4. The device for removing ingots from a crucible of a vacuum consumable furnace according to claim 2, wherein: The clamp includes a fixed plate and a movable plate. The fixed plate is fixedly connected to the lifting rod, and the movable plate is sleeved and connected to the lifting rod. The movable plate is fixed by a nut. The fixed bracket is provided with an adjustment slot, and the lifting rod can move horizontally along the adjustment slot to adjust the distance between the lifting rods.

5. The device for removing ingots from a crucible of a vacuum consumable furnace according to claim 1, wherein: A knocking portion is provided at the upper end of the telescopic rod, and the knocking portion is mushroom-shaped. A reset spring is located between the knocking portion and the track of the fixed bracket.

6. The device for removing ingots from a crucible of a vacuum consumable furnace according to claim 1, wherein: The striking hammer is cylindrical.

7. The device for removing ingots from a crucible of a vacuum consumable furnace according to claim 1, wherein: The driving motor is a servo motor to adjust the rotation speed of the cam.

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