Fixing device for steel ingot pouring production mold

Abstract

The invention relates to a fixing device for a steel ingot pouring production mold applied to the technical field of steel ingot molds, and the fixing device comprises a base plate, a steel ingot mold, a mold fixing mechanism, a clamping mechanical arm, a semicircular clamping block, a cooling cavity cabinet and a steel mold supporting tool. The stability of the steel ingot mold on the steel ingot mold base is effectively improved, the cooling effect is provided for the steel ingot mold through the cooling cavity cabinet, hardening of a steel ingot is facilitated, then the steel ingot mold is lifted, carried and withdrawn through the steel mold supporting tool, and a new steel ingot mold is installed on the steel ingot mold base through lifting equipment. The steel ingot mold with the steel ingot is subsequently hoisted and taken away, the hoisting frequency of hoisting equipment is effectively reduced, the pouring efficiency of the steel ingot is effectively improved, the steel ingot is cooled and hardened before the steel ingot mold is replaced, and the situation that molten steel leaks in the hoisting and taking-away process of the steel ingot mold is effectively avoided.

Description

Technical Field

[0001] A fixing device for a mold, in particular, a fixing device for a mold used in the ingot casting production technology field. Background Art

[0002] The casting of an ingot is to pour the qualified molten steel obtained in a steelmaking furnace or out-of-furnace refining through casting equipment such as a ladle and an intermediate ladle into an ingot mold or a mold with a certain shape and size, so that it solidifies into an ingot or a billet. An ingot is the final product of steelmaking production, and its quality is directly related to smelting and casting. During the ingot casting process in the steelmaking production process, in order to improve the stability and safety of ingot casting, it is necessary to fixedly install the ingot mold.

[0003] The specification of Chinese Patent CN202310870994.1 discloses "A fixing device for an ingot casting production mold". Through the cooperation of a clamping assembly and a support frame, the clamping assembly clamps the casting mold. At the same time, the clamping assembly closes the bearing seat I to prevent molten steel from spilling into the bearing seat I during casting, which may affect the next casting. The specification of Chinese Patent CN201821982949.6 discloses "A casting mold for manufacturing a hollow ingot by forced cooling". The mold adopts a structure of a single sleeve and a core. While the core structure is simple, the mold is provided with spiral cooling channels in the core. The spiral cooling channels make more full use of the cooling medium, can save the usage amount of the cooling medium, and improve the cooling efficiency. A heat conductor is filled in the gap between the single sleeve and the core. The heat conductor can support the single sleeve while transferring heat, thereby preventing the single sleeve from deforming during mold casting, and it is also easier to demold the mold.

[0004] Most of the existing fixing methods for ingot molds adopt a clamping and fixing method. However, the clamping and fixing process of the ingot mold is relatively complex, and most of the existing installation methods for ingot molds adopt a hoisting installation. The relatively complex fixing method of the ingot mold affects the hoisting installation and replacement efficiency of the ingot mold. Each time the hoisting equipment replaces the ingot mold, it is necessary to first remove the ingot mold with an ingot, and then hoist the new ingot mold to the mold installation position. The hoisting frequency of the hoisting equipment is high, which is not conducive to improving the ingot casting efficiency. Summary of the Invention

[0005] Aiming at the above-mentioned existing technology, the technical problem to be solved by the present invention is that the existing fixing method for the ingot mold is relatively complex, and the fixing process and the releasing process are relatively complicated, which affects the installation and replacement efficiency of the ingot mold, and further affects the ingot casting efficiency.

[0006] To solve the above problems, the present invention provides a fixing device for a mold used in ingot casting production, which includes a chassis. A tundish is fixedly connected to the middle of the chassis. Both ends of the chassis are provided with ingot mold bases. A runner is fixedly connected between the bottom of the tundish and the ingot mold base. An ingot mold is installed on the top of the ingot mold base; Baffles are fixedly connected to both the left and right ends of the chassis. A mold fixing mechanism is movably connected between the two groups of baffles. Both ends of the top of the mold fixing mechanism are fixedly connected with clamping robotic arms. The output ends of the clamping robotic arms are movably connected with semi-circular clamping blocks. Cooling cavity cabinets are fixedly connected to both ends of the semi-circular clamping blocks. Pipes communicating with the cooling cavity cabinets are fixedly inlaid on both the top and bottom of the semi-circular clamping blocks. A steel mold carrier is fixedly connected to the bottom of the mold fixing mechanism. The steel mold carrier is inserted between the ingot mold base and the ingot mold.

[0007] In the above-mentioned fixing device for a mold used in ingot casting production, the semi-circular clamping blocks on the clamping robotic arms are used to provide clamping and fixing ability for the ingot mold, and the steel mold carrier is used to carry the ingot mold, effectively improving the hoisting and replacement effect of the ingot mold. At the same time, the cooling cavity cabinets are used to provide a cooling effect for the ingot mold, facilitating the hardening of the ingot, thereby avoiding the situation of molten steel leakage during the replacement of the ingot mold.

[0008] As a further improvement of the present application, a lifting lug is fixedly connected to the middle of the ingot mold. Bolt ear plates are fixedly connected to both the top and bottom of the ingot mold. The semi-circular clamping block is located between the two groups of bolt ear plates, facilitating the hoisting and mold closing operations of the ingot mold, and the semi-circular clamping block being located between the bolt ear plates effectively improves the clamping accuracy of the semi-circular clamping block.

[0009] As a further improvement of the present application, a control vehicle is fixedly connected to one end of the mold fixing mechanism away from the ingot mold. A circulation pump is fixedly connected to the top of the control vehicle. Circulation pipes are fixedly connected between the circulation pump and both the top and bottom of the cooling cavity cabinet. The movement operation of the mold fixing mechanism is facilitated through the control vehicle, and the circulation pump cooperates with the circulation pipes to realize the circulating flow of the cooling medium between the cooling cavity cabinet and the control vehicle.

[0010] As a further improvement of the present application, a hydraulic clamping module is fixedly connected to the end of the cooling cavity cabinet facing the ingot mold. A pressure valve is fixedly connected to the middle of the circulation pipe. The flow difference of the medium conveyed and discharged by the circulation pipe is controlled through the pressure valve, thereby controlling the internal medium pressure of the cooling cavity cabinet. The hydraulic clamping module uses the medium pressure to achieve close contact with the ingot mold.

[0011] As another improvement of the present application, the hydraulic clamping module is composed of a pressure plug and a fitting plate. The outer end of the pressure plug is hinged to the fitting plate. The fitting plate is in close contact with the outer surface of the ingot mold. The pressurized medium in the cooling cavity cabinet exerts an outward pushing pressure on the pressure plug, thereby realizing the fitting plate closely fitting the outer surface of the ingot mold.

[0012] As a supplement to another improvement of the present application, an inner groove is provided at one end of the cooling cavity cabinet facing the ingot mold. Pressure cylinders are evenly and fixedly connected inside the inner groove. The pressure plug is movably connected to the pressure cylinders. The pressurizing medium of the cooling cavity cabinet directly contacts the pressure plug through the pressure cylinders, realizing the transfer of medium pressure to the pressure plug and the ability of the pressure plug to extend outwards.

[0013] As a supplement to another improvement of the present application, a heat conduction pile is fixedly inlaid in the middle of the pressure plug. The heat conduction pile extends out of the piston end of the pressure plug, and the extended end of the heat conduction pile is sleeved with the pressure cylinder, effectively improving the heat transfer ability of the pressure plug by using the heat conduction pile.

[0014] As another improvement of the present application, a heat through-hole is provided at the hinged end of the pressure plug and the fitting plate. A heat conduction strip is fixedly connected between the inside of the heat through-hole and the fitting plate. Both the heat conduction strip and the heat conduction pile are made of aluminum alloy material, effectively improving the heat transfer ability between the pressure plug and the fitting plate by using the heat conduction strip.

[0015] In summary, the present invention provides a clamping and fixing ability for the ingot mold through the semi-circular clamping blocks on the clamping robotic arm, effectively improving the stability of the ingot mold on the ingot mold base. When the molten steel in the ingot mold is cooled, the cooling cavity cabinet is used to provide a cooling effect for the ingot mold, facilitating the hardening of the ingot. Then, the ingot mold is lifted and transported by the steel mold carrier and withdrawn. A new ingot mold is installed on the ingot mold base through a hoisting device. Subsequently, the ingot mold with the ingot is hoisted and removed. This effectively reduces the hoisting frequency of the hoisting device, effectively improves the hoisting and replacement ability of the ingot mold, and thus effectively improves the ingot casting efficiency. Moreover, the ingot is cooled and hardened before the ingot mold is replaced, effectively avoiding the situation of molten steel leakage during the hoisting and removal of the ingot mold. Description of the Drawings

[0016] Figure 1 Is a three-dimensional structure diagram of the first embodiment of the present application; Figure 2 Is a demonstration diagram of the hoisting and replacement operation of the ingot mold in the first embodiment of the present application; Figure 3 Is a top three-dimensional structure diagram of the chassis in the first embodiment of the present application; Figure 4 Is a bottom three-dimensional structure diagram of the steel mold carrier in the first embodiment of the present application; Figure 5 Is a three-dimensional structure diagram of the ingot mold in the first embodiment of the present application; Figure 6 Is a three-dimensional structure diagram of the ingot mold in a clamped and fixed state in the first embodiment of the present application; Figure 7 Is a cross-sectional view of the semi-circular clamping block and the cooling cavity cabinet in the first embodiment of the present application; Figure 8 It is an enlarged sectional view of the cooling cavity cabinet of the second embodiment of this application; Figure 9 It is a three-dimensional structure diagram of the cooling cavity cabinet of the second embodiment of this application; Figure 10 It is a three-dimensional structure diagram of the pressure plug of the second embodiment of this application.

[0017] Description of the reference numerals in the figure: 1. Chassis; 101. Middle pouring tube; 102. Ingot mold base; 103. Runner; 104. Ingot mold; 105. Baffle; 106. Lifting lug; 107. Bolt ear plate; 2. Mold fixing mechanism; 201. Clamping robotic arm; 202. Semi-circular clamping block; 203. Steel mold carrier; 204. Control vehicle; 3. Cooling cavity cabinet; 301. Pipeline; 302. Circulation pump; 303. Circulation pipe; 304. Pressure valve; 401. Pressure plug; 402. Fitting plate; 403. Inner groove; 404. Pressure cylinder; 405. Heat conduction pile; 406. Heat through hole; 407. Heat conduction strip. Specific embodiments

[0018] The following will describe the two embodiments of this application in detail with reference to the accompanying drawings.

[0019] The first embodiment: Figures 1 to 6 As shown, a fixing device for an ingot casting production mold includes a chassis 1. A middle pouring tube 101 is fixedly connected to the middle of the chassis 1. Ingot mold bases 102 are provided at both ends of the chassis 1. A runner 103 is fixedly connected between the bottom of the middle pouring tube 101 and the ingot mold base 102. An ingot mold 104 is installed on the top of the ingot mold base 102; Baffles 105 are fixedly connected to the left and right ends of the chassis 1. A mold fixing mechanism 2 is movably connected between the two groups of baffles 105. Clamping robotic arms 201 are fixedly connected to both ends of the top of the mold fixing mechanism 2. The output end of the clamping robotic arm 201 is movably connected with a semi-circular clamping block 202. A lifting lug 106 is fixedly connected to the middle of the ingot mold 104. Bolt ear plates 107 are fixedly connected to the top and bottom of the ingot mold 104. The semi-circular clamping block 202 is located between the two groups of bolt ear plates 107, which is convenient for the hoisting and mold closing operations of the ingot mold 104, and the semi-circular clamping block 202 is located between the bolt ear plates 107, effectively improving the clamping accuracy effect of the semi-circular clamping block 202. A steel mold carrier 203 is fixedly connected to the bottom of the mold fixing mechanism 2. The steel mold carrier 203 is inserted between the ingot mold base 102 and the ingot mold 104; The ingot mold 104 for ingot casting is installed on the ingot mold base 102 of the chassis 1. Molten steel is poured into the tundish 101, and then the molten steel enters from the bottom of the ingot mold 104 through the runner 103 to achieve the bottom-pouring casting of the ingot. During the installation of the ingot mold base 102, the mold fixing mechanism 2 uses the semi-circular clamping blocks 202 on the clamping manipulator 201 to clamp and fix the ingot mold 104 in the left-right direction, effectively improving the pouring stability of the ingot mold 104, thereby effectively improving the safety effect of ingot casting. After injecting enough molten steel into the ingot mold 104 and waiting for the molten steel to harden into an ingot, the mold fixing mechanism 2 retracts backward outside the chassis 1, and the ingot mold 104 is removed from the ingot mold base 102 by using the ingot mold carrier 203, which is convenient for the new ingot mold 104 to be hoisted and installed on the ingot mold base 102. After the new ingot mold base 102 is stably installed, the lifting equipment moves backward to remove the ingot mold 104 containing the ingot from the mold fixing mechanism 2, effectively reducing the lifting frequency of the lifting equipment, thereby facilitating the mold fixing mechanism 2 to provide a clamping and fixing effect on the newly installed ingot mold 104.

[0020] Figures 6 to 7 As shown, both ends of the semi-circular clamping block 202 are fixedly connected with a cooling cavity cabinet 3, and pipelines 301 communicating with the cooling cavity cabinet 3 are fixedly inlaid at the top and bottom of the semi-circular clamping block 202. One end of the mold fixing mechanism 2 far from the ingot mold 104 is fixedly connected with a control vehicle 204, and a circulation pump 302 is fixedly connected to the top of the control vehicle 204. Circulation pipes 303 are fixedly connected between the top and bottom of the circulation pump 302 and the cooling cavity cabinet 3. The control vehicle 204 facilitates the movement operation of the mold fixing mechanism 2, and the circulation pump 302 cooperates with the circulation pipes 303 to realize the circulating flow of the cooling medium between the cooling cavity cabinet 3 and the control vehicle 204; When the semi-circular clamping block 202 clamps and fixes the ingot mold 104, the cooling cavity cabinet 3 on the semi-circular clamping block 202 is synchronously located on the outer surface of the ingot mold 104. The circulation pump 302 cooperates with the circulation pipes 303 to realize the circulating flow of the cooling medium between the cooling cavity cabinet 3 and the control vehicle 204. The cooling cavity cabinets 3 at both ends of the semi-circular clamping block 202 are also connected through the pipelines 301 to provide a circulating cooling effect on the ingot mold 104, facilitating the rapid hardening of the inside of the ingot mold 104 to form an ingot, thereby effectively avoiding the leakage of molten steel when the ingot mold 104 is replaced and effectively improving the safety during the replacement of the ingot mold 104. When the ingot mold 104 is in the process of pouring molten steel, the cooling medium in the cooling cavity cabinet 3 is in a closed circulation state, effectively avoiding the cooling ability of the cooling cavity cabinet 3 from affecting the molten steel just poured into the ingot mold 104. In order to further limit the cooling ability of the cooling cavity cabinet 3, those skilled in the art can install heating equipment within the cooling ability of the cooling cavity cabinet 3 to realize the self-heating of the medium inside the cooling cavity cabinet 3, thereby facilitating the smooth filling of the ingot mold 104 with molten steel.

[0021] The second implementation mode: Compared with the first implementation mode, a hydraulic clamping module is mainly added. The specific added structure is as follows, and the rest of the structures are the same as those in the first implementation mode.

[0022] Figures 7 to 9 As shown, at one end of the cooling cavity cabinet 3 facing the ingot mold 104, a hydraulic clamping module is fixedly connected. In the middle of the circulation pipe 303, a pressure valve 304 is fixedly connected. By controlling the flow difference between the conveying and discharging of the circulation pipe 303 through the pressure valve 304, the internal medium pressure of the cooling cavity cabinet 3 is controlled. The hydraulic clamping module uses the medium pressure to achieve close contact with the ingot mold 104. The hydraulic clamping module is composed of a pressure plug 401 and a fitting plate 402. The outer end of the pressure plug 401 is hinged to the fitting plate 402, and the fitting plate 402 is in close contact with the outer surface of the ingot mold 104. The pressurized medium in the cooling cavity cabinet 3 exerts an outward pushing pressure on the pressure plug 401, so as to realize the fitting plate 402 closely fitting the outer surface of the ingot mold 104. An inner groove 403 is opened at one end of the cooling cavity cabinet 3 facing the ingot mold 104. Inside the inner groove 403, pressure cylinders 404 are uniformly fixedly connected. The pressure plug 401 is movably connected to the pressure cylinders 404. The pressurized medium in the cooling cavity cabinet 3 directly contacts the pressure plug 401 through the pressure cylinders 404, realizes the transfer of the medium pressure to the pressure plug 401, and realizes the outward extending ability of the pressure plug 401; When the semi-circular clamping block 202 synchronously drives the cooling cavity cabinet 3 to clamp on the outer surface of the ingot mold 104, due to the different outer diameter sizes of the ingot mold 104 and the thermal expansion of the ingot mold 104 when molten steel is injected, the clamping contact effect between the cooling cavity cabinet 3 and the ingot mold 104 is affected. Therefore, in this implementation mode, the hydraulic clamping module is used to compensate and buffer this error. By controlling the flow difference between the conveying and discharging of the circulation pipe 303 through the pressure valve 304, the pressurization operation of the internal medium of the cooling cavity cabinet 3 is realized. The pressurized medium directly exerts an outward extending pressure on the pressure plug 401 through the pressure cylinders 404, so as to realize the pressure plug 401 pushing the fitting plate 402 to be in close contact with the outer surface of the ingot mold 104, effectively improving the clamping stability of the ingot mold 104 and effectively improving the heat transfer effect between the ingot mold 104 and the cooling cavity cabinet 3.

[0023] Figure 9 and Figure 10It is shown that a heat conduction pile 405 is fixedly embedded in the middle of the pressure plug 401. The heat conduction pile 405 extends out of the piston end of the pressure plug 401, and the extending end of the heat conduction pile 405 is sleeved with the pressure cylinder 404. The heat conduction pile 405 is used to effectively improve the heat transfer capacity of the pressure plug 401. A heat through hole 406 is formed at the hinged end of the pressure plug 401 and the fitting plate 402. A heat conduction strip 407 is fixedly connected between the inside of the heat through hole 406 and the fitting plate 402. Both the heat conduction strip 407 and the heat conduction pile 405 are made of aluminum alloy material, and the heat conduction strip 407 is used to effectively improve the heat transfer capacity between the pressure plug 401 and the fitting plate 402; By fixedly embedding the heat conduction pile 405 in the pressure plug 401, and the heat conduction pile 405 extends into the pressure cylinder 404 to directly contact the cooling medium in the cooling cavity cabinet 3, the heat transfer effect of the pressure plug 401 is effectively improved. Then, the heat conduction strip 407 is used to improve the heat transfer capacity between the pressure plug 401 and the fitting plate 402, thereby effectively improving the cooling effect of the cooling cavity cabinet 3 on the ingot mold 104.

[0024] Combined with the current actual requirements, the above implementation method adopted in this application, the protection scope is not limited to this. Within the knowledge scope of those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A fixing device for a steel ingot casting production mold, characterized in that: It comprises a chassis (1), a center injection pipe (101) is fixedly connected to the middle of the chassis (1), a steel ingot mold base (102) is provided at both ends of the chassis (1), a soup channel (103) is fixedly connected between the bottom of the center injection pipe (101) and the steel ingot mold base (102), and a steel ingot mold (104) is installed on the top of the steel ingot mold base (102); The left and right ends of the chassis (1) are fixedly connected to baffles (105), a mold fixing mechanism (2) is movably connected between the two sets of baffles (105), the top ends of the mold fixing mechanism (2) are fixedly connected to clamping mechanical arms (201), the output end of the clamping mechanical arm (201) is movably connected to a semicircular clamping block (202), the two ends of the semicircular clamping block (202) are fixedly connected to a cooling chamber cabinet (3), and the top and bottom of the semicircular clamping block (202) are fixedly inlaid with pipelines (301) connected to the cooling chamber cabinet (3), and the bottom of the mold fixing mechanism (2) is fixedly connected to a steel mold bracket (203), and the steel mold bracket (203) is inserted between the steel ingot mold base (102) and the steel ingot mold (104).

2. A fixing device for a steel ingot casting production mold according to claim 1, characterized in that: A lifting lug (106) is fixedly connected to the middle of the steel ingot mold (104), bolt lug plates (107) are fixedly connected to the top and bottom of the steel ingot mold (104), and the semicircular clamping block (202) is located between two groups of bolt lug plates (107).

3. A fixing device for a steel ingot casting production mold according to claim 1, characterized in that: One end of the mold fixing mechanism (2) away from the steel ingot mold (104) is fixedly connected to a control vehicle (204), a top of the control vehicle (204) is fixedly connected to a circulation pump (302), and a circulation pipe (303) is fixedly connected between the circulation pump (302) and the top and bottom of the cooling chamber cabinet (3).

4. A fixing device for a steel ingot casting production mold according to claim 3, characterized in that: A hydraulic clamping module is fixedly connected to one end of the cooling chamber cabinet (3) facing the steel ingot mould (104), and a pressure valve (304) is fixedly connected to the middle of the circulation pipe (303).

5. A fixing device for a steel ingot casting production mold according to claim 4, characterized in that: The hydraulic clamping module is composed of a pressure plug (401) and a bonding plate (402), the outer end of the pressure plug (401) is hinged to the bonding plate (402), and the bonding plate (402) is in close contact with the outer surface of the steel ingot mold (104).

6. A fixing device for a steel ingot casting production mold according to claim 5, characterized in that: An inner groove (403) is formed at one end of the cooling chamber cabinet (3) facing the steel ingot mould (104), a pressure cylinder (404) is evenly and fixedly connected inside the inner groove (403), and the pressure plug (401) is movably connected to the pressure cylinder (404).

7. A fixing device for a steel ingot casting production mold according to claim 5, characterized in that: A heat-conducting pile (405) is fixedly embedded in the middle of the pressure plug (401), the heat-conducting pile (405) extends out of the piston end of the pressure plug (401), and the extended end of the heat-conducting pile (405) is sleeved with the pressure cylinder (404).

8. A fixing device for a steel ingot casting production mold according to claim 7, characterized in that: A heat through hole (406) is provided at the hinged end of the pressure plug (401) and the bonding plate (402), a heat conducting strip (407) is fixedly connected between the inside of the heat through hole (406) and the bonding plate (402), and the heat conducting strip (407) and the heat conducting pile (405) are both made of aluminum alloy material.

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