Pouring cup plug pulling device

Abstract

The utility model provides a sprue cup plug pulling device, and particularly relates to the technical field of casting production. The sprue cup plug pulling device comprises a pulling plug, a support structure, a supporting structure and a balancing weight, the pulling plug is arranged in a direct sprue of a sprue cup, the support structure comprises a support, a pressing rod and a sliding mechanism, the support is arranged on the sprue cup, the sliding mechanism is installed on the support in a sliding mode, and the pressing rod is arranged on the pulling plug. One end of the pressing rod is connected with the pulling plug, the other end of the pressing rod penetrates through the sliding mechanism, and the pressing rod can move up and down along the support under the driving of the sliding mechanism; the supporting structure is arranged on the support and used for supporting the pressing rod. The balancing weight is arranged at the end, away from the pulling plug, of the pressing rod. The sprue cup plug pulling device can be used for sprue cups of different models, is easy and convenient to operate and high in universality, and can effectively reduce the complexity in the actual production process and improve the production efficiency.

Description

Technical Field

[0001] The utility model relates to the field of casting production, in particular to a pouring cup plug-pulling device. Background Art

[0002] In the process of pouring castings, it is usually necessary to use a pouring cup to pour molten iron into the mold cavity. In order to prevent the slag mixed in the molten iron from entering the mold, the liquid inlet at the bottom of the pouring cup must be plugged with a plug first. After the molten iron fills the pouring cup and the slag and gas in the molten iron fully float up, the plug is pulled out to allow the clean molten iron at the bottom to be poured into the mold cavity.

[0003] Commonly used pouring cups have different models, which may make it difficult to connect the plug and the pouring cup bracket, or require multiple bracket structures of different sizes. During the selection process of different pouring cups, plugs and brackets, workers are easily confused, which increases the complexity of on-site operations. In severe cases, the plug cannot be removed normally, resulting in casting failure.

[0004] Therefore, it is necessary to provide a universal pouring cup plug removal device to solve the above problems. Utility Model Content

[0005] In view of the above shortcomings of the prior art, the utility model provides a pouring cup plug removal device to improve the problem that pouring cups, plugs and brackets of different models are easily confused during the selection process.

[0006] To achieve the above-mentioned purpose and other related purposes, the utility model provides a pouring cup plug-pulling device, the pouring cup plug-pulling device comprising: a plug, a bracket structure, a supporting structure and a counterweight block, the plug is arranged in the straight pouring port of the pouring cup, the bracket structure comprises a bracket, a pressure rod and a sliding mechanism, the bracket is arranged on the pouring cup, the sliding mechanism is slidably installed on the bracket, one end of the pressure rod is connected to the plug, and the other end passes through the sliding mechanism, the pressure rod can move up and down along the bracket driven by the sliding mechanism; the supporting structure is arranged on the bracket, and is used to support the pressure rod; the counterweight block is arranged on the end of the pressure rod away from the plug.

[0007] In one example of the utility model, the sliding mechanism includes a slider and a rotating sleeve, a first through hole is provided on the bracket, the slider is slidably installed on the side wall of the first through hole, the rotating sleeve is rotatably installed on the slider, a second through hole is opened on the rotating sleeve, the pressure rod passes through the second through hole, and can move forward and backward along the second through hole.

[0008] In an example of the present invention, a first connecting hole is provided on at least one side of the sliding block, and the sliding block is fixed to the bracket by cooperating with the first connecting hole through a connecting member.

[0009] In an example of the present invention, rotating shafts are provided on both sides of the rotating sleeve, and positioning holes cooperating with the rotating shafts are correspondingly provided on the sliding block.

[0010] In one example of the utility model, the bracket includes a bracket body and a bracket base plate, the bracket base plate is fixedly connected to the pouring cup, the bracket body is arranged on the bracket base plate and extends in a direction perpendicular to the bracket base plate, and the first through hole is arranged at one end of the bracket body away from the bracket base plate.

[0011] In an example of the utility model, a connecting baffle is provided opposite to the end of the pressure rod connected to the plug, a second connecting hole is provided on the connecting baffle, and a counterweight baffle is provided on the end of the pressure rod away from the plug.

[0012] In one example of the utility model, the plug includes a plug core, a refractory ceramic tube and a plug head, the refractory ceramic tube is sleeved on the outside of the plug core, resin sand is filled between the refractory ceramic tube and the plug core, and the plug head is arranged at the bottom of the refractory ceramic tube and the plug core to seal the gate of the pouring cup.

[0013] In one example of the present invention, a refractory coating layer is further provided on the outer side of the refractory ceramic tube.

[0014] In one example of the utility model, the support structure includes a first support body, a second support body and a wooden embedment, the second support body is sleeved on the first support body and can move up and down along the first support body, the wooden embedment is fixed on the top of the second support body and abuts against the pressure rod.

[0015] In an example of the present utility model, the first support body is provided with an external thread, a nut is connected to the external thread, and the second support body is sleeved on the first support body and abuts against the nut.

[0016] In an example of the present invention, a stretching hole is further provided on the top of the second support body, and a steel wire rope is connected to the stretching hole.

[0017] The utility model discloses a pouring cup plugging device, which uses a plug to seal the straight pouring mouth of the pouring cup, one end of a pressure rod is connected to the plug, and the other end is provided with a counterweight block, and the pressure rod can move up and down along a bracket with the cooperation of a sliding mechanism, and before pouring, the pressure rod is supported by a supporting structure to keep the overall structure balanced; when pouring starts, the supporting structure is removed, and the end of the pressure rod is pressed downward under the action of the counterweight block, driving the plugging head to separate from the pouring mouth to complete the pouring.

[0018] The plug extraction device of the utility model can adjust the support structure in the horizontal and vertical directions according to the model of the pouring cup, so that one plug extraction device can correspond to various models of pouring cups. It has strong versatility, reduces the complexity of selecting and matching the pouring cup model, the support structure and the plug extraction model in the actual production process, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of the pouring cup plug removal device of the utility model when used in one embodiment;

[0021] Figure 2 This is a schematic diagram of the structure of the pouring cup in the utility model;

[0022] Figure 3 It is a schematic structural diagram of a plug removal device for a pouring cup according to the utility model in one embodiment;

[0023] Figure 4 for Figure 3 Schematic diagram of the cross section along the AA direction;

[0024] Figure 5 It is a structural schematic diagram of a bracket of a pouring cup plug removal device in one embodiment of the utility model;

[0025] Figure 6 It is a structural schematic diagram of a slider in an embodiment of the pouring cup plug removal device of the utility model;

[0026] Figure 7 It is a structural schematic diagram of a rotating sleeve of a pouring cup plug removal device in one embodiment of the utility model;

[0027] Figure 8 It is a structural schematic diagram of a pressure rod of a pouring cup plug removal device in one embodiment of the utility model;

[0028] Fig. 9 This is a schematic structural diagram of a first support body of a pouring cup plug removal device in one embodiment of the utility model;

[0029] Fig.10 This is a schematic structural diagram of a second support body of a pouring cup plug removal device in one embodiment of the utility model;

[0030] Fig.11It is a structural schematic diagram of a wooden insert block in one embodiment of the pouring cup plug removal device of the utility model;

[0031] Fig.12 The utility model is a schematic structural diagram of a counterweight block in an embodiment of a pouring cup plug removal device.

[0032] Component number description

[0033] 100, pouring cup; 101, sprue; 102, first U-shaped groove; 200, plug; 210, plug core; 220, resin sand; 230, refractory ceramic tube; 240, refractory coating; 250, plug head; 300, bracket structure; 310, bracket; 311, bracket body; 3111, first through hole; 312, bracket bottom plate; 3121, second U-shaped groove; 320, pressure rod; 321, connecting baffle; 3211, second Connecting hole; 322, counterweight baffle; 330, slider; 331, slide groove; 332, first connecting hole; 333, mounting hole; 340, rotating sleeve; 341, second through hole; 342, rotating shaft; 400, supporting structure; 410, first supporting body; 411, external thread; 412, nut; 420, second supporting body; 421, connecting seat; 422, stretching hole; 430, wooden inlay; 500, counterweight block; 510, counterweight lifting ring. DETAILED DESCRIPTION

[0034] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0035] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0036] In the following description, a large number of details are discussed to provide a more thorough explanation of the embodiments of the present invention. However, it is obvious to those skilled in the art that the embodiments of the present invention can be implemented without these specific details. In other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in detail to avoid making the embodiments of the present invention difficult to understand.

[0037] The pouring cup is an important part of the casting process. Its function is to receive the liquid metal poured from the ladle and guide it into the sprue. When a certain amount of molten metal is poured into the ladle, the plugging device on the pouring cup is pulled out to allow the molten metal to enter the mold cavity, thus completing the pouring process.

[0038] At present, there are three main types of pouring cups: quantitative pouring cups, elliptical pouring cups and gate pouring cups. Compared with elliptical pouring cups and gate pouring cups, the quantitative pouring cup can effectively control the time of starting pouring, ensure the stability of the liquid surface, facilitate the rapid floating of slag in the molten metal, and avoid the slag from being drawn into the cavity. The molten metal can also be blocked by slag in the quantitative pouring cup, which maximizes the purity of the molten iron and is conducive to improving the quality of castings.

[0039] Different types of quantitative pouring cups have different sprue positions and heights. Due to different types of quantitative pouring cups, it is easy to make it difficult to connect the plug and the pouring cup bracket, or require a variety of bracket structures of different sizes. In the selection process of different quantitative pouring cups, plugs and brackets, workers are easily confused when selecting, which increases the complexity of on-site operations. In serious cases, the plug cannot be pulled out normally, resulting in casting failure.

[0040] Based on this, the utility model provides a pouring cup plug removal device, which can be used to fix pouring cup plugs of different models, has strong versatility, can effectively reduce the complexity of on-site operations, and improve work efficiency.

[0041] See also Figure 1 The above-mentioned pouring cup plug removal device includes a plug 200, a support structure 300, a support structure 400 and a counterweight block 500. The plug 200 is used to seal the straight pouring port 101 of the pouring cup 100. The support structure 300 is connected to the plug 200. The support structure 400 is used to support the support structure 300 before pouring. The counterweight block 50 can apply pressure to the support structure 300. When the support structure 400 is removed, under the action of the counterweight block 500, the support structure 300 drives the plug 200 to separate from the straight pouring port 101 of the pouring cup 100 to carry out pouring.

[0042] See also Figure 1 and Figure 2 The pouring cup 100 can be any three-dimensional structure with a receiving cavity, such as a cuboid, a cube, a cylinder, etc. A sprue 101 is provided at the bottom of the pouring cup 100, and a plug 200 is provided in the pouring cup 100. The plug 200 blocks the sprue 101 before pouring.

[0043] See also Figure 1 , Figure 3 and Figure 4In one embodiment, the plug 200 includes a plug body and a plug head 250, and the plug head 250 is arranged at the bottom of the plug body. The plug body includes a plug core 210 and a refractory ceramic tube 230, and the refractory ceramic tube 230 is sleeved on the outside of the plug core 210. In this embodiment, the refractory ceramic tube 230 is sleeved on the lower half of the plug core 210, that is, the plug core 210 partially extends outward beyond the refractory ceramic tube 230 to connect with the support structure 300. Resin sand 220 is filled between the refractory ceramic tube 230 and the plug core 210 to prevent molten metal from penetrating between the plug core 210 and the refractory ceramic tube 230 and causing damage to the plug 200. Furthermore, the refractory ceramic tube 230 and the plug core 210 are coaxially arranged to avoid inconsistent gaps between the refractory ceramic tube 230 and the plug core 210 at different locations, resulting in loose filling of the resin sand 220 and causing the metal liquid to penetrate into the plug 200.

[0044] Since the temperature of the molten metal is relatively high during the casting process, for example, the tapping temperature of molten iron for cast iron is about 1400°C, in order to increase the heat resistance and stability of the plug 200, a refractory coating 240 is also provided on the outside of the refractory ceramic tube 230, and the refractory coating 240 can be prepared using conventional refractory coatings in the art. Furthermore, the plug head 250 adopts a hemispherical structure, and the hemispherical shape is in closer contact with the circular sprue 101 without any gaps. In other embodiments, the plug head 250 may also adopt other shapes that match the sprue 101. Preferably, the plug head 250 is made of graphite, which has a melting point of up to 3850°C (3850±50°C), and can stably exist in high-temperature molten metal.

[0045] See also Figure 1 , Figures 5 to 8 The support structure 300 includes a support 310, a pressure rod 320 and a sliding mechanism. The support 310 is set on the pouring cup 100. The sliding mechanism is slidably installed on the support 310 and can slide up and down along the support 310. One end of the pressure rod 320 is connected to the plug 200, and the other end passes through the sliding mechanism. The pressure rod 320 can move up and down along the support 310 driven by the sliding mechanism.

[0046] In one embodiment, the bracket 310 includes a bracket body 311 and a bracket bottom plate 312, and the bracket bottom plate 312 is fixedly connected to the pouring cup 100. The connection method between the bracket bottom plate 312 and the pouring cup 100 is not limited here. As an example, a first U-shaped groove 102 is provided on the side wall of the pouring cup 100, and a second U-shaped groove 3121 is provided on the bracket bottom plate 312. The bracket bottom plate 312 is placed on the side wall of the pouring cup 100, and the second U-shaped groove 3121 and the first U-shaped groove 102 are penetrated in sequence by connecting bolts to fix the bracket bottom plate 312 on the side wall of the pouring cup 100. In other embodiments, the first U-shaped groove 102 and the second U-shaped groove 3121 can also be set to other shapes, such as a circular hole. The bracket body 311 is disposed on the bracket base plate 312 and extends in a direction perpendicular to the bracket base plate 312 . The bracket body 311 may be integrally formed with the bracket base plate 312 , or may adopt a split structure and be fixedly connected by fixing members, such as bolts.

[0047] In one embodiment, the bracket 310 is provided with a first through hole 3111, and the sliding mechanism is installed in the first through hole 3111. The sliding mechanism includes a slider 330 and a rotating sleeve 340. The slider 330 is slidably installed on the side wall of the first through hole 3111, and the rotating sleeve 340 is rotatably installed on the slider 330. The rotating sleeve 340 is provided with a second through hole 341, and the pressure rod 320 passes through the second through hole 341 and can move forward and backward along the second through hole 341. The slider 330 slides along the side wall of the first through hole 3111 to drive the rotating sleeve 340 to slide up and down, thereby adjusting the height of the pressure rod 320 to adapt to different models of pouring cups 100. In this embodiment, a slider 330 is respectively provided on the side walls on both sides of the first through hole 3111, and the side wall of the first through hole 3111 is equivalent to a slide rail. The slider 330 is provided with a slide groove 331 that cooperates with the slide rail, and the slider 330 is clamped on the slide rail through the slide groove 331. Furthermore, at least one side of the slider 330 is provided with a first connecting hole 332. When the height of the slider 330 is adjusted, it is fixed to the bracket 310 through a connecting piece and the first connecting hole 332. A rotating shaft 342 protruding from the surface of the rotating sleeve 340 is provided on each side of the rotating sleeve 340. The sliders 330 on both sides are respectively provided with mounting holes 333 that cooperate with the rotating shaft 342. The rotating sleeve 340 is inserted into the mounting hole 333 of the slider 330 through the rotating shaft 342, and the rotating shaft 342 can rotate in the mounting hole 333. The second through hole 341 is opened in the middle position of the rotating sleeve 340, and the hole shape and size of the second through hole 341 must meet the requirements of the pressure rod 320 passing through and being able to move forward and backward in the second through hole 341. In this embodiment, the pressure rod 320 is a square structure, and the second through hole 341 is a square through hole adapted to the pressure rod 320.

[0048] A connecting baffle 321 is provided opposite to the end of the pressure rod 320 connected to the plug 200, and two connecting baffles 321 are provided with second connecting holes 3211 respectively. When the plug 200 is connected to the pressure rod 320, the plug core 210 is inserted between the two connecting baffles 321, and the plug core 210 is connected to the pressure rod 320 by using bolts and nuts. A counterweight baffle 322 is provided at the end of the pressure rod 320 away from the plug 200, and the counterweight baffle 322 is used to stop the counterweight block 500 to prevent the counterweight block 500 from sliding off the pressure rod 320.

[0049] See also Figure 1 , Figures 9 to 11 The support structure 400 is used to support the pressing rod 320 before pouring, so that the pressing rod 320 can maintain balance and press the plug head 250 tightly into the sprue 101 of the pouring cup 100. During pouring, the support structure 400 is removed, and the pressing rod 320 is lifted up at one end connected to the plug 200 under the pressure of the counterweight 500, driving the plug 200 to move upward, thereby pulling the plug head 250 out of the sprue 101 for pouring.

[0050] In one embodiment, the support structure 400 includes a first support body 410 and a second support body 420. The first support body 410 is placed on the bracket bottom plate 312, and the second support body 420 is sleeved on the first support body 410 and can move up and down along the first support body 410 to adjust the support height. Specifically, the first support body 410 is provided with an external thread 411, and a nut 412 is connected to the external thread 411 of the first support body 410. The second support body 420 is sleeved on the first support body 410 and abuts against the nut 412. Rotating the nut 412 can make the nut 412 move up and down along the first support body 410, thereby driving the second support body 420 to move up and down. In other embodiments, an internal thread that cooperates with the external thread 411 can also be set in the second support body 420, and the second support body 420 is threadedly connected to the first support body 410. Rotating the second support body 420 can directly adjust its relative position with the first support body 410.

[0051] Furthermore, the support structure 400 also includes a wooden block 430, which is fixed on the top of the second support body 420 and abuts against the pressure rod 320. There is no restriction on the fixing method of the wooden block 430. For example, a connecting seat 421 is provided on the top of the second support body 420, and a connecting hole is provided on the side wall of the connecting seat 421. The wooden block 430 is clamped in the connecting seat 421 and fixed by bolts. The wooden block 430 is provided on the top of the second support body 420 because after the wooden block 430 contacts the metal pressure rod 320, it is not easy to slide between the two, and the supporting process is more stable. At the same time, the wooden block 430 has a certain plastic deformation ability, and the supporting state can be broken when the support structure 400 is pulled by manpower. Furthermore, a stretching hole 422 is also provided on the top of the second support body 420, and a steel wire rope (not shown in the figure) is connected to the stretching hole 422. When pouring starts, the steel wire rope is pulled to pull the support structure 400 down from the bracket structure 300, breaking the supporting state and allowing the molten metal to enter the cavity to complete the pouring.

[0052] See also Figure 1 and Fig.12 The counterweight block 500 can adopt any counterweight structure, which is not limited here. The counterweight of the counterweight block 500 can be selected according to actual needs. To facilitate the installation of the counterweight block 500, a counterweight ring 510 is provided on the counterweight block 500, and the counterweight block 500 can be hung on the pressure rod 320 through the counterweight ring 510.

[0053] See also Figures 1 to 12 , the following takes a 10T quantitative pouring cup as an example to illustrate the use of the pouring cup plug removal device of the utility model:

[0054] (1) Place the quantitative pouring cup above the sand box (not shown) of the part to be cast, so that the sprue is directly opposite to the sprue 101 of the quantitative pouring cup, and fill the gap around the sprue 101 with resin sand.

[0055] (2) Place the plug 200 directly above the sprue 101 of the quantitative pouring cup, so that the plug head 250 is in close contact with the sprue 101 without obvious cracks, and apply paint to the cracks and bake.

[0056] (3) Place the support structure 300 above the quantitative pouring cup, and use bolts to sequentially pass through the first U-shaped groove 102 and the second U-shaped groove 3121 to fix the support 310 on the quantitative pouring cup.

[0057] (4) The pressure rod 320 passes through the second through hole 341 on the rotating sleeve 340, and the plug 200 is connected to the pressure rod 320 by bolts. The height of the slider 330 is adjusted to keep the pressure rod 320 horizontal, and the height of the slider 330 is fixed by bolts.

[0058] (5) Place the support structure 400 on the support base plate 312 of the support 310 , and adjust the nut 412 between the first support body 410 and the second support body 420 so that the wooden block 430 at the upper end of the second support body 420 presses against the pressure rod 320 .

[0059] (6) The counterweight block 500 is hung on the end of the pressure rod 320 so that the counterweight hanging ring 510 contacts the counterweight baffle 322 .

[0060] (7) Before pouring, pour the molten iron into the quantitative pouring cup, push the slag to the side away from the sprue 101, and set a slag blocking device (not shown in the figure). When pouring starts, pull the wire rope to separate the support structure 400 from the pressure rod 320, and the counterweight 500 acts on the pressure rod 320 to press the end of the pressure rod 320 downward. At the same time, the end of the pressure rod 320 connected to the plug 200 rises, so that the plug head 250 is separated from the sprue 101. After blocking the slag, the molten iron enters the casting cavity through the sprue 101, completing the pouring of the casting.

[0061] In other embodiments, different types of quantitative pouring cups can be adjusted by simply adjusting the height of the slider 330 in the support structure 300 without replacing other types of support structures.

[0062] The pouring cup plug-pulling device of the utility model can be adjusted in the horizontal and vertical directions according to different models of quantitative pouring cups, and is easy to operate. It can realize that one type of plug-pulling corresponds to multiple types of quantitative pouring cups, and has strong versatility, reducing the complexity of selecting and matching the quantitative pouring cup model, the bracket structure and the plug-pulling model in the actual production process, and improving production efficiency. Therefore, the utility model effectively overcomes some practical problems in the prior art and has high utilization value and use significance.

[0063] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A pouring cup plug removal device, characterized in that: include: A plug is provided in the sprue of the sprue cup; A bracket structure, the bracket structure comprising a bracket, a pressure rod and a sliding mechanism, the bracket is arranged on the pouring cup, the sliding mechanism is slidably mounted on the bracket, one end of the pressure rod is connected to the plug, and the other end passes through the sliding mechanism, and the pressure rod moves up and down along the bracket driven by the sliding mechanism; A supporting structure, arranged on the bracket, for supporting the pressure rod; A counterweight block is arranged at an end of the pressure rod away from the plug removal.

2. The pouring cup plug removal device according to claim 1, characterized in that: The sliding mechanism includes a slider and a rotating sleeve. The bracket is provided with a first through hole. The slider is slidably installed on the side wall of the first through hole. The rotating sleeve is rotatably installed on the slider. The rotating sleeve is provided with a second through hole. The pressure rod passes through the second through hole and can move forward and backward along the second through hole.

3. The pouring cup plug removal device according to claim 2, characterized in that: A first connecting hole is provided on at least one side of the sliding block, and the sliding block is fixed on the bracket by cooperating with the first connecting hole through a connecting piece.

4. The pouring cup plug removal device according to claim 2, characterized in that: Rotating shafts are arranged on both sides of the rotating sleeve, and mounting holes cooperating with the rotating shafts are arranged on the sliding block accordingly.

5. The pouring cup plug removal device according to claim 2, characterized in that: The bracket includes a bracket body and a bracket base plate, the bracket base plate is fixedly connected to the pouring cup, the bracket body is arranged on the bracket base plate and extends in a direction perpendicular to the bracket base plate, and the first through hole is arranged at one end of the bracket body away from the bracket base plate.

6. The pouring cup plug removal device according to claim 1, characterized in that: A connecting baffle is provided at one end of the pressure rod connected to the plug, a second connecting hole is provided on the connecting baffle, and a counterweight baffle is provided at one end of the pressure rod away from the plug.

7. The pouring cup plug removal device according to claim 1, characterized in that: The plug includes a plug core, a refractory ceramic tube and a plug head. The refractory ceramic tube is sleeved on the outside of the plug core. Resin sand is filled between the refractory ceramic tube and the plug core. The plug head is arranged at the bottom of the refractory ceramic tube and the plug core to seal the pouring cup. A refractory coating is also provided on the outside of the refractory ceramic tube.

8. The pouring cup plug removal device according to claim 1, characterized in that: The support structure includes a first support body, a second support body and a wooden block. The second support body is sleeved on the first support body and can move up and down along the first support body. The wooden block is fixed on the top of the second support body and abuts against the pressure rod.

9. The pouring cup plug removal device according to claim 8, characterized in that: The first support body is provided with an external thread, and a nut is connected to the external thread. The second support body is sleeved on the first support body and abuts against the nut.

10. The pouring cup plug removal device according to claim 8, characterized in that: A stretching hole is provided on the top of the second support body, and a steel wire rope is connected in the stretching hole.

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