Automatic slagging-off device for melting furnace

Abstract

The utility model relates to the technical field of casting of aluminum alloy automobile parts, and discloses an automatic slagging-off device of a melting furnace, which comprises a bottom plate, a rack is fixedly connected onto the bottom plate, a crank is rotatably connected onto the rack, one end of the crank is in transmission connection with a power device, and the other end of the crank is slidably connected into a chute of a grooved connecting rod. A sliding rod is fixedly connected in the length direction of the grooved connecting rod, a guide sleeve corresponding to the sliding rod is arranged on the bottom plate, the sliding rod is connected to the guide sleeve in a sliding mode, and a rake used for slagging off is hinged to the front end of the sliding rod. Automatic slagging-off operation of the melting furnace is achieved, body discomfort caused by long-time standing of slag removal personnel in a high-temperature area is relieved, labor intensity is lowered, the scalding risk is avoided, the rake head is lifted to be separated from molten aluminum when the rake enters the furnace through the matching effect of the cam, and the slag removal efficiency is improved. And when the drag head is pulled back, the drag head descends to cling to the bottom of the furnace to remove slag, so that the slag removal effect is ensured, and the cleanliness of molten aluminum is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy automobile parts casting, in particular to an automatic slag removal device for a melting furnace. Background Art

[0002] Aluminum alloy auto parts need to go through the aluminum ingot smelting process during the manufacturing process. In order to ensure the quality of the process, the aluminum slag generated in the melting furnace needs to be cleaned regularly during the melting of the aluminum ingot to maintain the cleanliness of the aluminum liquid. At present, the aluminum slag cleaning operation is usually done manually. The slag cleaning personnel stand at the door of the melting furnace, extend the spike rake into the melting furnace, repeatedly scrape the slag, and scrape the aluminum slag out of the furnace door to the aluminum slag collection bucket to complete the slag cleaning operation. In the above operation method, the slag cleaning personnel need to stand in the high-temperature area near the furnace door for a long time and repeatedly perform the slag removal action, which can easily cause physical discomfort, high labor intensity, and the risk of burns. In addition, manual slag removal cannot be performed continuously, and the slag cleaning effect is poor.

[0003] Based on this, developing a slag removal device that can realize automatic slag removal of the melting furnace and apply it to actual production is a problem that needs to be solved urgently. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic slag removal device for a melting furnace in view of the above problems, so as to improve the high temperature discomfort, high labor intensity and scalding risk caused by manual slag removal by operators, and at the same time solve the problem of unclean slag cleaning in existing manual slag removal operations.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] An automatic slag removal device for a melting furnace comprises a base plate, a frame is fixedly connected to the base plate, a crank is rotatably connected to the frame, one end of the crank is transmission-connected to a power device, the other end of the crank is slidably connected in a slide groove of a grooved connecting rod, a slide rod is fixedly connected to the length direction of the grooved connecting rod, a guide sleeve is provided on the base plate corresponding to the slide rod, the slide rod is slidably connected to the guide sleeve, and the front end of the slide rod is hinged to a spike rake for slag removal.

[0007] Preferably, a cam is provided on the base plate corresponding to the rake handle of the spike rake, and the rake handle is slidably connected to the cam as a follower. The cam is rotatably connected to the seat plate and is transmission-connected to a cam motor. The rotation of the cam can periodically drive the rake handle to swing vertically with the hinge point as the axis, thereby forming an upward or downward movement of the rake head end of the spike rake.

[0008] Preferably, a circumferential guide groove is provided on the outer contour of the cam corresponding to the rake handle, and the rake handle is slidably connected in the circumferential guide groove to form a guiding and limiting effect on the rake handle.

[0009] Preferably, the slide rod is a square rod, and the guide sleeve is a square tube, so as to limit the relative rotation between the slide rod and the guide sleeve.

[0010] Preferably, the spike rake is provided with a counterweight block, and the position of the counterweight block is adjustably connected to the rake handle.

[0011] The beneficial effects of the utility model are:

[0012] The utility model realizes the automatic slag removal operation of the melting furnace, replaces the manual slag removal operation mode, avoids the physical discomfort caused by the slag removal personnel standing in the high temperature area near the furnace door for a long time to perform the slag removal action, reduces the labor intensity, and avoids the risk of scalding; at the same time, the automatic slag removal device can be carried out continuously to ensure the slag removal effect; in addition, compared with the conventional reciprocating motion structure, the slag removal structure provided by the utility model has a longer stroke, which ensures the action range of the spike rake in the melting furnace, and only requires a smaller structure volume to meet the slag removal use requirements of the melting furnace, saving floor space and manufacturing costs. Through the cooperation of the cam, the spike rake can realize the slag removal action of the rake head lifting up and separating from the aluminum liquid when entering the furnace, and the rake head descending and slag removal close to the furnace bottom when pulling back, ensuring the slag removal effect and improving the cleanliness of the aluminum liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a structural schematic diagram of the utility model in use state.

[0016] In the figure: 1--base plate; 2--frame; 21--crank; 22--power unit; 3--grooved connecting rod; 31--slideway; 4--slide bar; 41--guide sleeve; 5--nail rake; 51--rake handle; 52--rake head; 6--cam; 61--seat plate; 62--cam motor; 7--counterweight. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] like Figure 1-2As shown, an automatic slag removal device for a melting furnace comprises a bottom plate 1, a frame 2 is fixedly connected to the bottom plate 1, a crank 21 is rotatably connected to the frame 2, one end of the crank 21 is transmission-connected to a power device 22, the other end of the crank 21 is slidably connected to a slide slot 31 of a grooved connecting rod 3, a slide bar 4 is fixedly connected to the length direction of the grooved connecting rod 3, a guide sleeve 41 is provided on the bottom plate 1 corresponding to the slide bar 4, and the slide bar 4 is slidably connected to the guide sleeve 41. The front end of the slide bar 4 is hinged to a spike rake 5 for slag removal. When slag removal, the power device 22 is started, driving the crank 21 to rotate, the extended end of the crank 21 to make a circumferential motion, and driving the grooved connecting rod 3 to follow the motion through the slide slot 31, the slide bar 4 fixedly connected to the grooved connecting rod 3 is constrained by the guide sleeve 41 and pushed and pulled by the grooved connecting rod 3, forming a linear reciprocating motion of the sliding connection guide sleeve 41, thereby generating an action of the spike rake 5 reciprocating in and out of the melting furnace to remove slag.

[0019] This embodiment realizes the automatic slag removal operation of the melting furnace through the above structure, eliminating the manual slag removal operation mode, avoiding the slag removal personnel standing in the high temperature area near the furnace door for a long time to perform the slag removal action, which may cause physical discomfort, reducing labor intensity, and avoiding the risk of scalding. At the same time, the automatic slag removal device can be carried out continuously to ensure the slag removal effect. In addition, compared with the conventional reciprocating motion structure, the slag removal structure provided by this embodiment has a longer stroke, which ensures the range of action of the spike rake 5 in the melting furnace, and only requires a smaller structure volume to meet the slag removal use requirements of the melting furnace, saving floor space and manufacturing costs.

[0020] As a preferred embodiment, a cam 6 is provided on the base plate 1 corresponding to the rake handle 51 of the spike rake 5. The rake handle 51 is slidably connected to the cam 6 as a follower. The cam 6 is rotatably connected to the seat plate 61 and is transmission-connected to the cam motor 62 to obtain rotational power. The rotation of the cam 6 can periodically drive the rake handle 51 to swing vertically with the hinge point as the axis, thereby forming an upward or downward movement of the rake head 52 of the spike rake 5. When the slide bar 4 pushes the rake handle 51 forward into the melting furnace, the cam 6 just drives the rake handle 51 to swing upward, so that the rake head 52 of the spike rake 5 rises and leaves the aluminum liquid surface, avoiding the aluminum slag in the aluminum liquid being pushed into the depth of the melting furnace when the spike rake 5 is extended into the melting furnace; when the rake head 52 is pulled back, the cam 6 rotates to drive the rake head 52 end to swing downward, so that the rake head 52 is pulled back along the bottom of the melting furnace to scrape out the aluminum slag in the aluminum liquid. In this embodiment, the cam 6 cooperates with the nail rake 5 to achieve a slag cleaning action in which the rake head 52 is lifted up and separated from the aluminum liquid when entering the furnace, and the rake head 52 is lowered to closely adhere to the bottom of the furnace to remove slag when pulling back, thereby ensuring the slag cleaning effect and improving the cleanliness of the aluminum liquid.

[0021] Preferably, a circumferential guide groove is provided on the outer contour of the cam 6 corresponding to the rake handle 51, and the rake handle 51 is slidably connected in the circumferential guide groove. The circumferential guide groove serves as a guide and limit structure for the rake handle 51, effectively preventing the rake handle 51 from detaching from the cam 6, and ensuring the stability of the structural operation.

[0022] Preferably, the slide rod 4 is a square rod, and the guide sleeve 41 is a square tube. The square structure can limit the relative rotation between the slide rod 4 and the guide sleeve 41, optimize the structural force, and further ensure the movement stability.

[0023] Preferably, if Figure 1 As shown, the spike rake 5 is provided with a counterweight 7, and the position of the counterweight 7 is adjustably connected to the rake handle 51. According to the actual operation of the slag scraping device, the position of the counterweight 7 on the rake handle 51 can be adjusted at any time to ensure that the structure is properly stressed.

[0024] The above disclosure is only a specific embodiment of the present invention, but the present invention is not limited thereto. For ordinary technicians in this field, without departing from the principle of the present invention, any deformation made should be regarded as belonging to the protection of the present invention.

Claims

1. An automatic slag removal device for a melting furnace, characterized in that: The invention comprises a base plate (1), a frame (2) being fixedly connected to the base plate (1), a crank (21) being rotatably connected to the frame (2), one end of the crank (21) being transmission-connected to a power device (22), the other end of the crank (21) being slidably connected to a slide groove (31) of a grooved connecting rod (3), a slide rod (4) being fixedly connected to the length direction of the grooved connecting rod (3), a guide sleeve (41) being provided on the base plate (1) corresponding to the slide rod (4), the slide rod (4) being slidably connected to the guide sleeve (41), and the front end of the slide rod (4) being hinged to a spike rake (5) for scraping slag.

2. The automatic slag removal device for a melting furnace according to claim 1, characterized in that: A cam (6) is provided on the base plate (1) corresponding to a rake handle (51) of the spike rake (5); the rake handle (51) is slidably connected to the cam (6) as a driven member; the cam (6) is rotatably connected to the base plate (61) and is transmission-connected to a cam motor (62); the rotation of the cam (6) can periodically drive the rake handle (51) to swing in a vertical direction about a hinge point as an axis, thereby forming an ascending or descending action of a rake head (52) of the spike rake (5).

3. The automatic slag removal device for a melting furnace according to claim 2, characterized in that: A circumferential guide groove is provided on the outer contour of the cam (6) corresponding to the rake handle (51), and the rake handle (51) is slidably connected in the circumferential guide groove to form a guiding and limiting effect on the rake handle (51).

4. The automatic slag removal device for a melting furnace according to claim 1, characterized in that: The slide bar (4) is a square bar, and the guide sleeve (41) is a square tube, so as to limit the relative rotation between the slide bar (4) and the guide sleeve (41).

5. The automatic slag removal device for a melting furnace according to claim 2, characterized in that: The spike rake (5) is provided with a counterweight block (7), and the position of the counterweight block (7) is adjustably connected to the rake handle (51).

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