A vermiculite covering agent feeding device

Abstract

The present invention discloses a vermiculite covering agent feeding device, which relates to the technical field of general equipment manufacturing industry and includes an electric manipulator. A vermiculite feeding mechanism is arranged at the bottom of the electric manipulator. By setting the vermiculite feeding mechanism, the vermiculite originally placed on the opening and closing plate inside the sliding cover will fall due to gravity and naturally drop into the molten steel in the ladle below, realizing automatic closed injection. This prevents a large amount of vermiculite from being scattered when directly poured, and due to the rising and flowing of the hot air in the molten steel in the ladle, some vermiculite is pushed back and scattered outward, resulting in uneven vermiculite input and affected input quantity. The closed method avoids the problems of the flow of hot air rising and the scattering of vermiculite.

Description

Technical Field

[0001] The invention relates to the technical field of general equipment manufacturing industry, in particular to a vermiculite covering agent feeding device. Background Art

[0002] Vermiculite is an auxiliary material for metallurgical process. It is used to keep the steel warm during casting, slow down the cooling of the molten steel in the ladle and the cooling of the steel ingot during continuous casting. The method is to put wood ash, fly ash and carbonized rice husk on the surface of the molten steel and the steel ingot during continuous casting as a cover for heat preservation after the molten steel flows into the ladle.

[0003] A covering agent feeding device described in the patent application with publication number CN213264732U relates to the technical field of general equipment manufacturing industry, which includes a dosing machine and a feed hopper installed at the upper end of the dosing machine, and also includes a conveying mechanism for quantitatively conveying the covering agent discharged by the dosing machine to one side of the ladle in batches, and the conveying mechanism is made of metal to cope with the temperature of the iron liquid in the ladle. After determining the amount of covering agent, the chain plate machine moves, and the dosing machine adds the covering agent into the feeding box, and then under the movement of the chain plate, it is sent to the discharge box at the end to complete the feeding. Here, the chain plate machine is made of metal and can withstand the temperature of the ladle. At the same time, the dosing machine is pulled away from the ladle to protect the dosing machine and increase its service life. The discharge pipe facilitates discharge and prevents the covering agent from spilling outward.

[0004] At present, when vermiculite is used to cover the surface of molten steel in the ladle and the steel ingot for insulation, when it is poured directly on the molten steel, it is easy to form small hills directly on the molten steel, resulting in uneven insulation effect on the molten steel. In addition, pouring vermiculite directly on the center will also cause a large impact force, which will cause the surface of the molten steel to wrap part of the vermiculite into the molten steel due to the impact, affecting the quality of the molten steel itself. In addition, these traditional covering agents have poor insulation effects, dust is flying during use, the casting environment is deteriorated, and it is harmful to the health of workers. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a vermiculite covering agent feeding device, which achieves the purpose of solving the above-mentioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a vermiculite covering agent feeding device, comprising an electric mechanical arm, a vermiculite feeding mechanism is provided at the bottom of the electric mechanical arm;

[0007] The vermiculite feeding mechanism comprises:

[0008] Lifting sleeve, the lifting sleeve is of a circular barrel structure, the top of the lifting sleeve is fixedly connected to one end of an electric manipulator, a ladle is arranged at the bottom of the lifting sleeve, a sliding cover is slidably connected to the inner wall of the lifting sleeve, an annular groove is formed at the bottom of the sliding cover, and the annular groove is used for buckling on the upper edge of the ladle to play a fixing role. A bearing ring is arranged on the inner wall of the annular groove, and the bearing ring is used for reducing the friction generated during mutual rotation when the sliding cover abuts against the upper edge of the ladle;

[0009] Bearing, the bearing is of an annular structure, the inner wall of the bearing is rotatably connected to the outer wall of the lifting sleeve, a hinged rod is hinged to the outer wall of the bearing, and a charging cover is threadedly connected to the top of the lifting sleeve.

[0010] Preferably, one end of the hinged rod is hinged to a connecting plate, a sliding strip is fixedly connected to the bottom of the connecting plate, and an opening and closing plate is fixedly connected to one side of the connecting plate.

[0011] Preferably, the number of the opening and closing plates is two, the bottom of the opening and closing plate is fixedly connected to the top of the sliding strip, the bottom of the sliding strip is slidably connected to a support plate, and the outer wall of the support plate is fixedly connected to the outer wall of the sliding cover.

[0012] Preferably, a chute is formed on the outer wall of the sliding cover, the outer wall of the opening and closing plate is slidably connected to the inner wall of the chute, and a circular cover A and a circular cover B are arranged on the inner wall of the sliding cover, and the center positions of the circular cover A and the circular cover B are the same.

[0013] Preferably, a paving mechanism is arranged inside the lifting sleeve, the paving mechanism includes a connecting rod, one end of the connecting rod is fixedly connected to the inner wall of the lifting sleeve, and the other end of the connecting rod is fixedly connected to an internal thread sleeve.

[0014] Preferably, a threaded rod is threadedly connected to the inner wall of the internal thread sleeve, one end of the threaded rod is fixedly connected to a round rod, both ends of the round rod are fixedly connected to the inner wall of the sliding cover, and the round rod penetrates through the circular cover A and the circular cover B and is fixedly connected to the circular cover A and the circular cover B.

[0015] Preferably, a sliding arc plate is slidably connected to the inner wall of the round rod, the sliding arc plate is of an arc plate structure, and the sliding arc plate is in an inclined state.

[0016] Preferably, a connecting block is fixedly connected to the top of the sliding arc plate, an elastic rope is fixedly connected to the bottom of the connecting block, and one end of the elastic rope is fixedly connected to the outer wall of the round rod.

[0017] The present invention provides a vermiculite covering agent feeding device, which has the following beneficial effects:

[0018] 1. By setting up a vermiculite feeding mechanism in the present invention, the vermiculite originally placed on the opening and closing plate inside the sliding cover will fall due to gravity and naturally drop into the molten steel in the lower ladle, achieving an automatic closed injection. This prevents a large amount of vermiculite from scattering when directly poured, and when the vermiculite scatters, with the rising and flowing of the hot air in the molten steel in the ladle, some vermiculite will be pushed outward and scattered, resulting in uneven vermiculite input and affected input quantity. The closed method avoids the problems of the flowing of hot air rising and the scattering of vermiculite.

[0019] 2. By setting up a vermiculite feeding mechanism in the present invention, the corresponding falling amount of vermiculite at the corresponding position is achieved, preventing a large amount of vermiculite from all falling from the middle position, which may cause the problem of uneven heat preservation effect due to the final hill-like accumulation on the molten steel. By dropping vermiculite in a layered manner, the vermiculite will be evenly distributed on the molten steel, making the thickness of the vermiculite covering the molten steel as uniform as possible. Under the condition of limited vermiculite and stacking amount, the stable heat preservation effect on the molten steel is ensured.

[0020] 3. By setting up a vermiculite feeding mechanism in the present invention, and pouring vermiculite through the opening and closing of two opening and closing plates, rapid and quantitative injection of a large amount of vermiculite is achieved, avoiding the problems that occur when pouring vermiculite by the dumping method, such as the vermiculite being prone to leakage when the dumping speed is too fast, and the efficiency being affected when it is too slow.

[0021] 4. By setting up a vermiculite feeding mechanism in the present invention, since the sizes of the circular cover A and circular cover B in the central part are limited, the vermiculite fed in the central part will not accumulate into a hill-like shape. More vermiculite will pass through the position between the circular cover B and the sliding cover as the opening and closing plates open the gap and rotate, and the vermiculite will be more evenly sprinkled on the molten steel in the ladle, making the coverage of the molten steel more uniform, further improving the heat preservation effect and avoiding heat loss.

[0022] 5. By setting up a vermiculite feeding mechanism in the present invention, the outer circle position of the vermiculite pile scattered on the molten steel by the opening and closing plates is fully leveled, effectively preventing the problem that the outer layer has a higher scattered and accumulated position during centrifugal rotation, and automatically leveling the material pile to complete the function of leveling the vermiculite pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the present invention;

[0024] Figure 2 is a schematic structural diagram of the vermiculite feeding mechanism of the present invention Figure 1 ;

[0025] Figure 3 is a schematic structural diagram of the vermiculite feeding mechanism of the present invention Figure 2 ;

[0026] Figure 4 For the present invention Figure 3 Enlarged view at position B;

[0027] Figure 5 For the present invention Figure 3 Enlarged view at position A;

[0028] Figure 6 Schematic diagram of the disassembled structure of the vermiculite feeding mechanism of the present invention Figure 1 ;

[0029] Figure 7 Schematic diagram of the disassembled structure of the vermiculite feeding mechanism of the present invention Figure 2 ;

[0030] Figure 8 Schematic diagram of the structure of the vermiculite feeding mechanism of the present invention Figure 3 ;

[0031] Figure 9 Schematic diagram of the structure of the vermiculite feeding mechanism of the present invention Figure 4 ;

[0032] Figure 10 Schematic diagram of the structure of the vermiculite feeding mechanism of the present invention Figure 5 ;

[0033] Figure 11 Motion state of the vermiculite feeding mechanism of the present invention Figure 1 ;

[0034] Figure 12 Motion state of the vermiculite feeding mechanism of the present invention Figure 2 ;

[0035] Figure 13 Schematic diagram of the structure of the paving mechanism of the present invention Figure 1 ;

[0036] Figure 14 Schematic diagram of the structure of the paving mechanism of the present invention Figure 2 .

[0037] In the figure: 1, electric manipulator; 2, ladle; 3, vermiculite feeding mechanism; 301, lifting sleeve; 302, sliding cover; 303, bearing; 304, articulated rod; 305, connecting plate; 306, slide bar; 307, support plate; 308, chute; 309, opening and closing plate; 310, circular cover A; 311, circular cover B; 4, paving mechanism; 401, connecting rod; 402, internal thread sleeve; 403, threaded rod; 404, round rod; 405, sliding arc plate; 406, connecting block; 407, elastic rope; 5, feeding cover. Detailed implementation manners

[0038] Example 1:

[0039] Please refer to Figure 1-4 , the present invention provides a technical solution: a vermiculite covering agent feeding device, which includes an electric robotic arm 1, and a vermiculite feeding mechanism 3 is arranged at the bottom of the electric robotic arm 1;

[0040] The vermiculite feeding mechanism 3 includes:

[0041] A lifting sleeve 301, the lifting sleeve 301 is a circular barrel-shaped structure. The top of the lifting sleeve 301 is fixedly connected to one end of the electric robotic arm 1. A ladle 2 is arranged at the bottom of the lifting sleeve 301. A sliding cover 302 is slidably connected to the inner wall of the lifting sleeve 301. An annular groove is opened at the bottom of the sliding cover 302, and the annular groove is used to buckle on the upper edge of the ladle to play a fixing role. A bearing ring is arranged on the inner wall of the annular groove, and the bearing ring is used to reduce the friction generated during mutual rotation when the sliding cover 302 abuts against the upper edge of the ladle;

[0042] A bearing 303, the bearing 303 is an annular structure. The inner wall of the bearing 303 is rotatably connected to the outer wall of the lifting sleeve 301. An articulated rod 304 is hinged to the outer wall of the bearing 303. A feeding cover 5 is threadedly connected to the top of the lifting sleeve 301.

[0043] During use, the inside of the lifting sleeve 301 is filled with vermiculite through the feeding cover 5, and then the electric robotic arm 1 is started to push the lifting sleeve 301 downwards, so that the annular groove opened at the bottom of the sliding cover 302 is sleeved on the top of the ladle, and the two are buckled to each other by inserting the top of the ladle into the annular groove. With the continuous downward push of the electric robotic arm 1, the sliding cover 302 is resisted by the ladle and does not move. Then, when the electric robotic arm 1 and the lifting sleeve 301 continue to descend, the inner wall of the lifting sleeve 301 slides down along the outer wall of the sliding cover 302, and drives the articulated rod 304 to descend synchronously through the bearing 303. The descending articulated rod 304 pushes the connecting plate 305. The connecting plate 305 slides on the support plate 307 through the sliding strip 306, and pulls two corresponding opening and closing plates 309 through the two connecting plates 305, so that the two opening and closing plates 309 are pulled outwards. After the opening and closing plates 309 are pulled out to both sides, the vermiculite originally placed in the sliding cover 302 on the opening and closing plates 309 will fall due to gravity and naturally fall into the molten steel in the ladle below, realizing automatic sealed injection. This prevents a large amount of vermiculite from being scattered during direct pouring, and with the rising and flowing of the hot air in the molten steel in the ladle, some vermiculite is pushed outwards and scattered, resulting in uneven vermiculite input and affected input quantity. The sealed method avoids the problems of the flow of hot air rising and the scattering of vermiculite;

[0044] Embodiment 2:

[0045] Please refer to Figure 1-12, on the basis of Embodiment 1, the present invention provides a technical solution: one end of the hinge rod 304 is hinged with a connecting plate 305, the bottom of the connecting plate 305 is fixedly connected with a slide bar 306, and one side of the connecting plate 305 is fixedly connected with an opening and closing plate 309.

[0046] The number of the opening and closing plates 309 is two. The bottom of the opening and closing plate 309 is fixedly connected with the top of the slide bar 306. The bottom of the slide bar 306 is slidably connected with a support plate 307, and the outer wall of the support plate 307 is fixedly connected with the outer wall of the sliding cover 302.

[0047] A chute 308 is provided on the outer wall of the sliding cover 302. The outer wall of the opening and closing plate 309 is slidably connected with the inner wall of the chute 308. A circular cover A 310 and a circular cover B 311 are arranged on the inner wall of the sliding cover 302, and the center positions of the circular cover A 310 and the circular cover B 311 are the same.

[0048] And when the opening and closing plate 309 is opened to both sides, vermiculite will fall from different layers on the inner walls of the corresponding circular cover A 310, circular cover B 311 and the sliding cover 302. When the opening and closing plate 309 is quickly opened outwards, the vermiculite will first fall from the circular cover A 310. After the vermiculite in the circular cover A 310 has fallen, it will continue to fall between the circular cover A 310 and the circular cover B 311, and finally fall between the circular cover B 311 and the sliding cover 302, so as to realize the corresponding falling amount of vermiculite at the corresponding position, prevent a large amount of vermiculite from all falling from the middle position, resulting in the problem that the finally formed vermiculite in a small hill shape accumulates on the molten steel, leading to uneven heat preservation effect. By dropping vermiculite in a layered manner, the vermiculite will be evenly distributed on the molten steel, making the thickness of the vermiculite covering the molten steel as uniform as possible. Under the condition of limited vermiculite and stacking amount, the stable heat preservation effect on the molten steel is ensured;

[0049] And by opening and closing two opening and closing plates 309 to pour vermiculite, a large amount of vermiculite can be quickly and quantitatively injected, avoiding the problems that when pouring vermiculite by the dumping method, the dumping speed of vermiculite is too fast and it is easy to leak, and too slow will affect the efficiency;

[0050] Embodiment 3:

[0051] Please refer to Figure 1-14 , on the basis of Embodiment 1 and Embodiment 2, the present invention provides a technical solution: a leveling mechanism 4 is arranged inside the lifting sleeve 301. The leveling mechanism 4 includes a connecting rod 401. One end of the connecting rod 401 is fixedly connected with the inner wall of the lifting sleeve 301, and the other end of the connecting rod 401 is fixedly connected with an internal thread sleeve 402.

[0052] The inner wall of the internal thread sleeve 402 is threadedly connected to a threaded rod 403. One end of the threaded rod 403 is fixedly connected to a round rod 404. Both ends of the round rod 404 are fixedly connected to the inner wall of the sliding cover 302. The round rod 404 passes through the circular cover A 310 and the circular cover B 311 and is fixedly connected to the circular cover A 310 and the circular cover B 311.

[0053] A sliding arc plate 405 is slidably connected to the inner wall of the round rod 404. The sliding arc plate 405 is in the shape of an arc plate and is in an inclined state.

[0054] A connecting block 406 is fixedly connected to the top of the sliding arc plate 405. An elastic cord 407 is fixedly connected to the bottom of the connecting block 406. One end of the elastic cord 407 is fixedly connected to the outer wall of the round rod 404.

[0055] When the electric robotic arm 1 and the lifting sleeve 301 descend, the inner wall of the lifting sleeve 301 will drive the connecting rod 401 and the internal thread sleeve 402 to descend together. When the internal thread sleeve 402 descends, it will drive the threaded rod 403 to rotate threadedly through the thread between the inner wall and the outer wall of the threaded rod 403. The thread lead angle of the outer wall of the threaded rod 403 is greater than sixty degrees and the pitch is relatively large. Therefore, when the internal thread sleeve 402 descends, it will push the threaded rod 403 through the round rod 404 to drive the whole sliding cover 302 to rotate with relatively small friction through the thread. And the sliding cover 302 can slide both rotationally and vertically on the inner wall of the lifting sleeve 301;

[0056] When the sliding cover 302 rotates after the bottom annular groove abuts against the ladle, the relative rotational movement when abutting against the upper edge of the ladle can be realized through the bearing ring on the inner wall of the sliding cover 302. Thus, during the opening process of the opening and closing plate 309, the straight-line type of falling material stack passing through the opening and closing plate 309 can be effectively changed into a uniform ring through rotation. And because the sizes of the circular cover A 310 and the circular cover B 311 in the central part are limited, the falling vermiculite in the central part will not pile up into a small mountain shape. Instead, more vermiculite will pass through the position between the circular cover B 311 and the sliding cover 302 along with the opening gap and rotation of the opening and closing plate 309, and the vermiculite will be more evenly sprinkled on the molten steel in the ladle, making the coverage of the molten steel more uniform, further improving the heat preservation effect and avoiding heat loss;

[0057] When the two opening and closing plates 309 move away from each other, the sliding arc-shaped plate 405 sliding on the inner wall of the round rod 404 is pulled by the elastic rope 407 through the connecting block 406, and the sliding arc-shaped plate 405 is pulled down. The sliding arc-shaped plate 405 then loses the blockage of the opening and closing plate 309, so it slides down to the lower part of the round rod 404, and then rotates and stirs the surface of the scattered vermiculite pile through the outer wall of the sliding arc-shaped plate 405 until the sliding cover 302 completely slides into the lifting sleeve 301, and then it no longer continues to push the sliding cover 302 to rotate. Before that, the sliding cover 302 and the inner round rod 404 and sliding arc-shaped plate 405 keep rotating continuously, so as to fully level the outer ring position of the vermiculite pile scattered on the molten steel through the opening and closing plate 309, effectively preventing the problem of higher accumulation position of the outer layer during centrifugal rotation, and automatically leveling the material pile to complete the function of leveling the vermiculite pile.

[0058] Finally, when the vermiculite is placed, after lifting the lifting sleeve 301 and the sliding cover 302, the sliding cover 302 will fall back to its original position under gravity, and the opening and closing plate 309 will also reset. Thus, when the opening and closing plate 309 resets, it will move to the arc-shaped side of the sliding arc-shaped plate 405, and the sliding arc-shaped plate 405 is an inclined surface, so it will move the sliding arc-shaped plate 405 to slide up on the inner wall of the round rod 404 to return it to its original position.

[0059] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered within the protection scope of the present invention.

Claims

1. A vermiculite covering agent feeding device, comprising an electric mechanical arm (1), characterized in that: A vermiculite feeding mechanism (3) is provided at the bottom of the electric mechanical arm (1); The vermiculite feeding mechanism (3) comprises: A lifting sleeve (301), the lifting sleeve (301) being a circular barrel-shaped structure, the top of the lifting sleeve (301) being fixedly connected to one end of the electric mechanical arm (1), the bottom of the lifting sleeve (301) being provided with a molten steel ladle (2), the inner wall of the lifting sleeve (301) being slidably connected to a sliding cover (302), the bottom of the sliding cover (302) being provided with an annular groove, the annular groove being used to buckle on the upper edge of the molten steel ladle (2) for fixing, the inner wall of the annular groove being provided with a bearing ring, the bearing ring being used to reduce the friction generated when the sliding cover (302) and the upper edge of the molten steel ladle (2) are in contact with each other and rotate with each other; A bearing (303), wherein the bearing (303) is an annular structure, the inner wall of the bearing (303) is rotatably connected to the outer wall of the lifting sleeve (301), the outer wall of the bearing (303) is hinged with a hinge rod (304), and the top of the lifting sleeve (301) is threadedly connected with a feed cover (5); A connecting plate (305) is hingedly connected to one end of the hinged rod (304), a sliding bar (306) is fixedly connected to the bottom of the connecting plate (305), and an opening and closing plate (309) is fixedly connected to one side of the connecting plate (305); The outer wall of the sliding cover (302) is provided with a sliding groove (308), the outer wall of the opening and closing plate (309) is slidably connected to the inner wall of the sliding groove (308), and the inner wall of the sliding cover (302) is provided with a circular cover A (310) and a circular cover B (311), and the center positions of the circular cover A (310) and the circular cover B (311) are the same.

2. A vermiculite covering agent feeding device according to claim 1, characterized in that: There are two opening and closing plates (309), the bottom of the opening and closing plates (309) is fixedly connected to the top of the slide bar (306), the bottom of the slide bar (306) is slidably connected to a support plate (307), and the outer wall of the support plate (307) is fixedly connected to the outer wall of the sliding cover (302).

3. A vermiculite covering agent feeding device according to claim 2, characterized in that: A flattening mechanism (4) is arranged inside the lifting sleeve (301), and the flattening mechanism (4) comprises a connecting rod (401), one end of the connecting rod (401) is fixedly connected to the inner wall of the lifting sleeve (301), and the other end of the connecting rod (401) is fixedly connected to an internal threaded sleeve (402).

4. A vermiculite covering agent feeding device according to claim 3, characterized in that: The inner wall of the internal threaded sleeve (402) is threadedly connected to a threaded rod (403); one end of the threaded rod (403) is fixedly connected to a round rod (404); both ends of the round rod (404) are fixedly connected to the inner wall of the sliding cover (302); the round rod (404) penetrates the round cover A (310) and the round cover B (311) and is fixedly connected to the round cover A (310) and the round cover B (311).

5. A vermiculite covering agent feeding device according to claim 4, characterized in that: The inner wall of the round rod (404) is slidably connected to a sliding arc plate (405), the sliding arc plate (405) is an arc plate-shaped structure, and the sliding arc plate (405) is in an inclined state.

6. A vermiculite covering agent feeding device according to claim 5, characterized in that: The top of the sliding arc plate (405) is fixedly connected to a connecting block (406), the bottom of the connecting block (406) is fixedly connected to an elastic rope (407), and one end of the elastic rope (407) is fixedly connected to the outer wall of the round rod (404).

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