A slagging mechanism of a holding furnace for molten aluminum

Abstract

The utility model discloses a kind of aluminium liquid heat preservation furnace slagging mechanism, including scraper support, scraper, driving mechanism and controller. Driving mechanism is constituted by horizontal movement module and vertical movement module, to realize the accurate positioning of scraper in two-dimensional space. Probe made of conductive material is set, probe lower end extends scraper lower edge and is connected to controller. When scraper drops to probe contact aluminium liquid surface, loop conduction produces signal, controller is automatically stopped dropping action accordingly, accurately controls slagging height. The utility model realizes the automation and precision of slagging process, effectively prevents equipment collision, and scraper and probe adopt detachable connection, convenient to replace maintenance, with the advantages of high security, good reliability, easy maintenance.

Description

Technical Field

[0001] This utility model relates to the technical field of casting machine liquid supply system, specifically a slag removal mechanism for an aluminum liquid holding furnace. Background Technology

[0002] The aluminum molten metal holding furnace is a crucial component of the aluminum alloy gravity casting system. During storage in the furnace, slag composed of oxide scale and other substances forms on the surface of the molten aluminum. This slag needs to be removed promptly; otherwise, it will significantly impact the yield of the cast products. Traditional slag removal methods primarily employ manual slag removal, which has the following drawbacks:

[0003] Manual slag removal is inefficient. Slag removal must be done before each aluminum pouring and casting, which takes up a lot of production time and makes it difficult to increase output.

[0004] Manual slag removal requires a fixed worker at each casting station to perform the slag removal and cleaning work, resulting in high labor costs and a harsh working environment. The quality of manual slag removal depends on the worker's work attitude and skill level, which can easily lead to quality fluctuations and thus unstable product quality.

[0005] Manual slag removal requires operators to stay close to the holding furnace for extended periods, posing a risk of burns. Utility Model Content

[0006] (I) Technical Solution

[0007] To solve the above-mentioned technical problems, this utility model provides a slag removal mechanism for an aluminum liquid holding furnace.

[0008] The specific technical solution is as follows: a slag removal mechanism for an aluminum liquid holding furnace, comprising a scraper support, a scraper, a probe, a probe circuit, a drive mechanism, and a controller. The drive mechanism is used to drive the scraper support to move horizontally and vertically. The scraper is fixed by the scraper support and is made of a high-temperature resistant material. The probe is made of a conductive material and is mounted on the scraper support. The lower end of the probe extends beyond the lower edge of the scraper. The probe is connected to the controller through the probe circuit. The controller is used to control the movement of the drive mechanism.

[0009] Furthermore, the scraper is made of ceramic material, and the probe is made of 316L stainless steel.

[0010] Furthermore, the drive includes a horizontal movement module and a vertical movement module. The horizontal movement module includes a transverse frame, a rack, a transverse linear guide rail, a drive gear, a gear reducer, and a transverse motor. The transverse motor is mounted on the transverse frame, the transverse frame cooperates with the transverse linear guide rail, the drive gear meshes with the rack, and the transverse motor drives the drive gear to rotate through the gear reducer.

[0011] The vertical moving module includes a lifting linear guide rail, a slider, a lead screw, and a lifting motor mounted on a horizontal moving frame. The lifting motor drives the lead screw to rotate, causing the slider to slide up and down along the lifting linear guide rail. The scraper bracket is mounted on the slider.

[0012] Furthermore, the scraper and the scraper support are detachably connected.

[0013] Furthermore, the scraper bracket also includes a mounting frame, and the top of the scraper is connected to the scraper mounting frame by bolts; the mounting frame includes at least two horizontally arranged cross plates, each cross plate having two through holes for probes to pass through.

[0014] Furthermore, the mounting bracket is also equipped with fasteners at each through hole for securing the probe.

[0015] Furthermore, the fastener includes two locking rings, which are located on the upper and lower sides of a horizontal plate, respectively.

[0016] (ii) Beneficial effects

[0017] Compared with existing technologies, this invention achieves precise positioning of the slag removal height by automatically detecting the surface position of the molten aluminum with a probe and controlling the lifting and lowering by a controller. This avoids the uncertainty of traditional manual operation and improves the accuracy and automation level of the operation. The function of the probe contacting the liquid surface first and automatically stopping effectively prevents the scraper from colliding with the furnace body due to excessive descent, thus protecting the equipment. The scraper is made of high-temperature resistant insulating materials such as ceramics, ensuring stability and safety in the high-temperature molten aluminum environment. The modular and detachable design makes the replacement of vulnerable parts (such as scrapers and probes) very simple, reducing maintenance costs and time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the drive mechanism.

[0021] Figure 3 for Figure 1 A magnified view of a portion of the image. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0023] To address the problems existing in the relevant prior art, this utility model proposes a wire drawing die box. The principle and structure of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0024] Please see Figures 1-3 The slag removal mechanism for the aluminum liquid holding furnace provided in this application embodiment includes a scraper support 1, a scraper 3, a probe 4, a probe circuit, a drive mechanism, and a controller.

[0025] The drive mechanism is used to move the scraper support horizontally and vertically, specifically as follows: Figure 2 As shown, the drive mechanism includes a horizontal moving module 5 and a vertical moving module 6. The horizontal moving module includes a transverse frame 56, a rack 52, a transverse linear guide rail 51, a drive gear 54, a gear reducer 55, and a transverse motor 53. The transverse motor 53 is mounted on the transverse frame 56, which cooperates with the transverse linear guide rail 51. The drive gear 54 meshes with the rack 52, which is arranged along the direction of the transverse linear guide rail 51. The transverse motor 53 drives the drive gear 52 to rotate through the gear reducer 55. Under the action of the rack 52, the drive gear 52 drives the transverse motor and the transverse frame to move horizontally on the transverse linear guide rail 51.

[0026] The vertical moving module 6 includes a lifting linear guide rail 64, a slider 62, a lead screw 61, and a lifting motor 63, all mounted on the horizontal moving frame 56. The lifting motor 63 drives the lead screw to rotate, causing the slider to slide up and down along the lifting linear guide rail. Since the scraper bracket 1 is mounted on the slider 62, the slider 62 drives the scraper bracket to move up and down.

[0027] The horizontal moving module is responsible for driving the entire vertical moving module and scraper support to move laterally; after reaching the designated lateral position, the vertical moving module works independently, responsible for driving the scraper support to move up and down. Together, they achieve precise positioning of the scraper support in both horizontal and vertical directions.

[0028] The scraper 3 is fixed by the scraper bracket 1. The scraper is made of a high-temperature resistant material, such as ceramic. It is not only insulating but also heat-resistant. The probe 4 is made of a conductive material and is mounted on the scraper bracket. The lower end of the probe 4 extends beyond the lower edge of the scraper 3. There are two probes 4. The probes are connected to the controller through a probe circuit. When the probes contact the molten aluminum, the two probes become conductive, forming a circuit. The controller receives the conduction signal and determines that the scraper has descended to a preset position. The controller then stops the lifting motor. Preferably, the probes are made of 316L stainless steel.

[0029] like Figure 3 As shown, for easy replacement of the scraper, the scraper and scraper bracket are detachably connected. Specifically, the scraper bracket 1 also includes a mounting frame 2, and the top of the scraper 3 is bolted to the scraper mounting frame 2. The mounting frame includes at least two horizontally arranged cross plates 21, each cross plate 21 having two through holes for the probe to pass through. The mounting frame also has fasteners at each through hole for fixing the probe. Each fastener includes two locking rings 22, which are located on the upper and lower sides of one cross plate, respectively. The locking rings 22 are used to lock the probe and prevent it from sliding up and down.

[0030] The slag removal mechanism operates as follows: First, the controller controls the drive mechanism to move the horizontal moving module to a designated position above the aluminum molten furnace. Then, the vertical moving module starts, driving the scraper support to descend. When the two probes installed on the support contact the aluminum molten surface to form a circuit, the controller receives a signal and determines that the scraper has reached the preset height, immediately stopping the lifting motor. At this time, the horizontal moving module starts working again, driving the scraper, which has been precisely set to a certain height, to move horizontally, thereby completing the slag removal operation.

[0031] The beneficial effects of this invention are mainly reflected in the following aspects: by automatically detecting the surface position of the molten aluminum with a probe and controlling the lifting and lowering by a controller, the precise positioning of the slag removal height is achieved, avoiding the uncertainty of traditional manual operation and improving the accuracy and automation level of the operation; the function of the probe contacting the liquid surface first and automatically stopping effectively prevents the scraper from colliding with the furnace body due to excessive descent, thus protecting the equipment; the scraper is made of high-temperature resistant insulating materials such as ceramics, ensuring stability and safety in the high-temperature molten aluminum environment; the modular and detachable design makes the replacement of vulnerable parts (such as scrapers and probes) very convenient, reducing maintenance costs and time.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A slag removal mechanism for an aluminum molten metal holding furnace, characterized in that: The device includes a scraper bracket, a scraper, a probe, a probe circuit, a drive mechanism, and a controller. The drive mechanism is used to drive the scraper bracket to move horizontally and vertically. The scraper is fixed by the scraper bracket and is made of a high-temperature resistant material. The probe is made of a conductive material and is mounted on the scraper bracket. The lower end of the probe extends beyond the lower edge of the scraper. The probe is connected to the controller through the probe circuit. The controller is used to control the movement of the drive mechanism.

2. The slag removal mechanism for the aluminum liquid holding furnace according to claim 1, characterized in that: The scraper is made of ceramic material, and the probe is made of 316L stainless steel.

3. The slag removal mechanism for the aluminum liquid holding furnace according to claim 2, characterized in that: The drive includes a horizontal movement module and a vertical movement module. The horizontal movement module includes a transverse frame, a rack, a transverse linear guide rail, a drive gear, a gear reducer, and a transverse motor. The transverse motor is mounted on the transverse frame. The transverse frame cooperates with the transverse linear guide rail. The drive gear meshes with the rack. The transverse motor drives the drive gear to rotate through the gear reducer. The vertical moving module includes a lifting linear guide rail, a slider, a lead screw, and a lifting motor mounted on a horizontal moving frame. The lifting motor drives the lead screw to rotate, causing the slider to slide up and down along the lifting linear guide rail. The scraper bracket is mounted on the slider.

4. The slag removal mechanism for the aluminum liquid holding furnace according to claim 3, characterized in that: The scraper and the scraper support are detachably connected.

5. The slag removal mechanism for the aluminum liquid holding furnace according to claim 4, characterized in that: The scraper bracket also includes a mounting frame, and the top of the scraper is connected to the scraper mounting frame by bolts; the mounting frame includes at least two horizontally arranged horizontal plates, and each horizontal plate has two through holes for probes to pass through.

6. The slag removal mechanism for the aluminum liquid holding furnace according to claim 5, characterized in that: The mounting bracket is also equipped with fasteners at each through-hole for securing the probe.

7. The slag removal mechanism for the aluminum liquid holding furnace according to claim 6, characterized in that: The fastener includes two locking rings, which are located on the upper and lower sides of a horizontal plate, respectively.

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