A fixing device for steel ingot casting production mold

Abstract

The present invention relates to a fixing device for a steel ingot casting production mold applied to the technical field of steel ingot molds, comprising a chassis, a steel ingot mold, a mold fixing mechanism, a clamping mechanical arm, a semicircular clamping block, a cooling chamber cabinet and a steel mold bracket. The present invention provides a clamping and fixing capability for the steel ingot mold by means of the semicircular clamping block on the clamping mechanical arm, thereby effectively improving the stability of the steel ingot mold on the steel ingot mold base, utilizing the cooling chamber cabinet to provide a cooling effect for the steel ingot mold, thereby facilitating the hardening of the steel ingot, and then utilizing the steel mold bracket to lift and transport the steel ingot mold backward. A new steel ingot mold is installed on the steel ingot mold base by means of a lifting device, and subsequently the withdrawn steel ingot mold with the steel ingot is lifted and removed, thereby effectively reducing the lifting frequency of the lifting equipment and effectively improving the steel ingot casting efficiency. Furthermore, the steel ingot is cooled and hardened before the steel ingot mold is replaced, thereby effectively avoiding leakage of molten steel during the lifting and removal of the steel ingot mold.

Description

Technical Field

[0001] The present invention relates to a fixing device for a mould, and in particular to a fixing device for a mould for casting a steel ingot, which is applied in the technical field of steel ingot moulds. Background Art

[0002] The pouring of steel ingots involves pouring qualified molten steel, obtained through refining in or outside a steelmaking furnace, through pouring equipment such as ladles and tundishes into an ingot mold or crystallizer of a specific shape and size, where it solidifies into an ingot or billet. The ingot is the final product of steelmaking, and its quality is directly related to the smelting and pouring process. During the steelmaking process, the ingot mold must be fixed and installed to improve the stability and safety of the ingot pouring process.

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

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

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

[0006] To solve the above problems, the present invention provides a fixing device for a steel ingot casting production mold, comprising a chassis, a center pouring pipe fixedly connected to the middle of the chassis, a steel ingot mold base provided at both ends of the chassis, a soup channel fixedly connected between the bottom of the center pouring pipe and the steel ingot mold base, and a steel ingot mold installed on the top of the steel ingot mold base;

[0007] The left and right ends of the chassis are fixedly connected with baffles, and a mold fixing mechanism is movably connected between the two sets of baffles. The top two ends of the mold fixing mechanism are fixedly connected with clamping robotic arms, and the output end of the clamping robotic arm is movably connected with a semicircular clamping block, and both ends of the semicircular clamping block are fixedly connected with a cooling chamber cabinet, and the top and bottom of the semicircular clamping block are fixedly inlaid with pipes connected to the cooling chamber cabinet, and the bottom of the mold fixing mechanism is fixedly connected with a steel mold bracket, which is inserted between the ingot mold base and the ingot mold.

[0008] In the above-mentioned fixing device for the steel ingot casting production mold, the semicircular clamping block on the clamping robot arm is used to provide clamping and fixing capabilities for the steel ingot mold, and the steel mold holder is used to transport the steel ingot mold, which effectively improves the lifting and replacement effect of the steel ingot mold. At the same time, the cooling chamber cabinet is used to provide a cooling effect for the steel ingot mold, which facilitates the hardening of the steel ingot, thereby avoiding leakage of molten steel when the steel ingot mold is replaced.

[0009] As a further improvement of the present application, a lifting lug is fixedly connected to the middle of the ingot mold, and bolt lug plates are fixedly connected to the top and bottom of the ingot mold. The semicircular clamping block is located between the two sets of bolt lug plates, which facilitates the lifting and mold closing operations of the ingot mold. The semicircular clamping block is located between the bolt lug plates, which effectively improves the clamping precision of the semicircular clamping block.

[0010] As a further improvement of the present application, the end of the mold fixing mechanism away from the ingot mold is fixedly connected to a control cart, the top of the control cart is fixedly connected to a circulation pump, and circulation pipes are fixedly connected between the circulation pump and the top and bottom of the cooling chamber cabinet. The control cart is used to facilitate the movement of the mold fixing mechanism, and the circulation pump and the circulation pipe are used to realize the circulation of the cooling medium between the cooling chamber cabinet and the control cart.

[0011] As a further improvement of the present application, a hydraulic clamping module is fixedly connected to the end of the cooling chamber cabinet facing the ingot mold, and a pressure valve is fixedly connected to the middle of the circulation pipe. The pressure valve controls the flow difference between the delivery and discharge of the circulation pipe, thereby controlling the medium pressure inside the cooling chamber cabinet. The hydraulic clamping module uses the medium pressure to achieve close contact with the ingot mold.

[0012] As another improvement of the present application, the hydraulic clamping module consists of a pressure plug and a bonding plate. The outer end of the pressure plug is hinged to the bonding plate. The bonding plate is in close contact with the outer surface of the ingot mold. The pressurized medium of the cooling chamber cabinet applies outward pushing pressure to the pressure plug, thereby achieving a close fit of the bonding plate to the outer surface of the ingot mold.

[0013] As another improved supplement to the present application, an inner groove is provided at one end of the cooling chamber cabinet facing the ingot mold, and a pressure cylinder is evenly and fixedly connected to the inside of the inner groove. The pressure plug is movably connected to the pressure cylinder, and the pressurized medium of the cooling chamber cabinet directly contacts the pressure plug through the pressure cylinder, thereby transmitting the medium pressure to the pressure plug and realizing the ability of the pressure plug to extend outward.

[0014] As another improved supplement to the present application, a heat-conducting pile is fixedly embedded in the middle of the pressure plug, the heat-conducting pile extends out of the piston end of the pressure plug, and the extended end of the heat-conducting pile is sleeved with the pressure cylinder, so that the heat transfer capacity of the pressure plug is effectively improved by utilizing the heat-conducting pile.

[0015] As another improvement of the present application, a thermal through hole is opened at the hinged end of the pressure plug and the bonding plate, and a thermal conductive strip is fixedly connected between the inside of the thermal through hole and the bonding plate. The thermal conductive strip and the thermal conductive pile are both made of aluminum alloy material. The thermal conductive strip is used to effectively improve the heat transfer capacity between the pressure plug and the bonding plate.

[0016] To sum up, the present invention provides a clamping and fixing capability for the ingot mold by means of the semicircular clamping block on the clamping robot arm, thereby 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 chamber cabinet is utilized to provide a cooling effect for the ingot mold, thereby facilitating the hardening of the ingot. The ingot mold is then lifted and transported back by the ingot support. The new ingot mold is installed on the ingot mold base by means of a lifting device, and the ingot mold with the ingot is subsequently lifted and removed, thereby effectively reducing the lifting frequency of the lifting equipment, effectively improving the lifting and replacement capability of the ingot mold, and thereby effectively improving the ingot casting efficiency. The ingot is cooled and hardened before the ingot mold is replaced, thereby effectively avoiding leakage of molten steel during the lifting and removal of the ingot mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural diagram of the first embodiment of the present application;

[0018] Figure 2 This is a demonstration diagram of the steel ingot mold hoisting and replacement operation according to the first embodiment of the present application;

[0019] Figure 3 This is a top-down perspective structural diagram of the chassis of the first embodiment of the present application;

[0020] Figure 4 This is a bottom-view stereoscopic structural diagram of the steel mold bracket according to the first embodiment of the present application;

[0021] Figure 5 This is a three-dimensional structural diagram of a steel ingot mold according to the first embodiment of the present application;

[0022] Figure 6This is a three-dimensional structural diagram of the steel ingot mold in the clamping and fixing state according to the first embodiment of the present application;

[0023] Figure 7 This is a cross-sectional view of the semicircular block and the cooling chamber cabinet according to the first embodiment of the present application;

[0024] Figure 8 This is an enlarged cross-sectional view of a cooling chamber cabinet according to a second embodiment of the present application;

[0025] Figure 9 This is a three-dimensional structural diagram of a cooling chamber cabinet according to the second embodiment of the present application;

[0026] Figure 10 This is a three-dimensional structural diagram of the pressure plug according to the second embodiment of the present application.

[0027] Description of the numbers in the figure:

[0028] 1. Chassis; 101. Center injection pipe; 102. Ingot mold base; 103. Soup channel; 104. Ingot mold; 105. Baffle; 106. Lifting ear; 107. Bolt ear plate; 2. Mold fixing mechanism; 201. Clamping robot arm; 202. Semicircular clamping block; 203. Mold holder; 204. Control vehicle; 3. Cooling chamber cabinet; 301. Pipeline; 302. Circulation pump; 303. Circulation pipe; 304. Pressure valve; 401. Pressure plug; 402. Laminating plate; 403. Inner groove; 404. Pressure cylinder; 405. Thermal pile; 406. Thermal through hole; 407. Thermal strip. DETAILED DESCRIPTION

[0029] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0030] The first implementation method:

[0031] Figures 1 to 6The figure shows a fixing device for a steel ingot casting production mold, comprising a chassis 1, a center pouring pipe 101 fixedly connected to the middle of the chassis 1, a steel ingot mold base 102 opened at both ends of the chassis 1, a soup channel 103 fixedly connected between the bottom of the center pouring pipe 101 and the steel ingot mold base 102, and a steel ingot mold 104 installed on the top of the steel ingot mold base 102; baffles 105 fixedly connected to the left and right ends of the chassis 1, a mold fixing mechanism 2 movably connected between the two sets of baffles 105, and a clamping mechanical arm 201 fixedly connected to the top two ends of the mold fixing mechanism 2. The output end is movably connected with a semicircular clamping block 202, the middle part of the ingot mold 104 is fixedly connected with a lifting ear 106, the top and bottom of the ingot mold 104 are fixedly connected with bolt ear plates 107, and the semicircular clamping block 202 is located between the two sets of bolt ear plates 107, which is convenient for the hoisting and mold closing operations of the ingot mold 104, and the semicircular clamping block 202 is located between the bolt ear plates 107, which effectively improves the clamping accuracy of the semicircular clamping block 202, and the bottom of the mold fixing mechanism 2 is fixedly connected with a steel mold bracket 203, which is inserted between the steel ingot mold base 102 and the steel ingot mold 104;

[0032] The ingot mold 104 for ingot casting is installed on the ingot mold base 102 of the chassis 1, and the molten steel is poured into the middle pouring pipe 101. The molten steel is then introduced into the bottom of the ingot mold 104 by using the soup channel 103 to realize the pouring method of the ingot. During the installation of the ingot mold base 102, the mold fixing mechanism 2 uses the semicircular clamping block 202 on the clamping mechanical arm 201 to clamp and fix the ingot mold 104 in the left and right directions, effectively improving the pouring stability of the ingot mold 104, thereby effectively improving the safety effect of the ingot pouring, and in the ingot mold 1 After sufficient molten steel is injected into 04 and waiting for the molten steel to harden into an ingot, the mold fixing mechanism 2 is withdrawn to the outside of the chassis 1, and the steel mold bracket 203 is used to remove the ingot mold 104 from the ingot mold base 102, so that the new ingot mold 104 can be hoisted and installed on the ingot mold base 102. After the new ingot mold base 102 is installed stably, the hoisting equipment moves backward to remove the ingot mold 104 containing the ingot from the mold fixing mechanism 2, effectively reducing the hoisting frequency of the hoisting equipment, thereby facilitating the mold fixing mechanism 2 to provide a clamping and fixing effect on the newly installed ingot mold 104.

[0033] Figures 6 and 7As shown, both ends of the semicircular clamping block 202 are fixedly connected to the cooling chamber cabinet 3, and the top and bottom of the semicircular clamping block 202 are fixedly inlaid with pipes 301 communicating with the cooling chamber cabinet 3. The end of the mold fixing mechanism 2 away from the steel ingot mold 104 is fixedly connected to the control vehicle 204. The top of the control vehicle 204 is fixedly connected to a circulating pump 302. Circulating pipes 303 are fixedly connected between the circulating pump 302 and the top and bottom of the cooling chamber cabinet 3. The control vehicle 204 facilitates the movement of the mold fixing mechanism 2, and the circulating pump 302 cooperates with the circulating pipe 303 to realize the circulation of the cooling medium between the cooling chamber cabinet 3 and the control vehicle 204.

[0034] When the semicircular clamping block 202 clamps and fixes the ingot mold 104, the cooling chamber cabinet 3 on the semicircular clamping block 202 is synchronously located on the outer surface of the ingot mold 104, and the circulating pump 302 cooperates with the circulating pipe 303 to realize the circulation of the cooling medium between the cooling chamber cabinet 3 and the control vehicle 204. The cooling chamber cabinets 3 at both ends of the semicircular clamping block 202 are connected through the pipeline 301 to provide a circulating cooling effect for the ingot mold 104, so that the interior of the ingot mold 104 is quickly hardened to form an ingot, thereby effectively avoiding the ingot mold 104 from being replaced. When leakage of molten steel occurs, the safety of replacing the ingot mold 104 is effectively improved. When the ingot mold 104 is in the process of being filled with molten steel, the cooling medium in the cooling chamber cabinet 3 is closed and circulated, effectively avoiding the cooling capacity of the cooling chamber cabinet 3 affecting the molten steel just injected into the ingot mold 104. In order to further limit the cooling capacity of the cooling chamber cabinet 3, technical personnel in this field can install heating equipment within the cooling capacity of the cooling chamber cabinet 3 to achieve autonomous heating of the medium inside the cooling chamber cabinet 3, thereby facilitating the smooth filling of the ingot mold 104 by molten steel.

[0035] Second implementation method:

[0036] Compared with the first embodiment, the main new addition is a hydraulic clamping module. The specific new structure is as follows, and the remaining structure is consistent with the first embodiment.

[0037] Figures 7 to 9As shown, the end of the cooling chamber cabinet 3 facing the ingot mold 104 is fixedly connected to a hydraulic clamping module, and the middle of the circulation pipe 303 is fixedly connected to a pressure valve 304. The pressure valve 304 controls the flow difference between the delivery and discharge of the circulation pipe 303, thereby controlling the medium pressure inside the cooling chamber cabinet 3. 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 bonding plate 402. The outer end of the pressure plug 401 is hinged to the bonding plate 402, and the bonding plate 402 is tightly connected to the outer surface of the ingot mold 104. The pressurized medium of the cooling chamber cabinet 3 applies outward pushing pressure to the pressure plug 401, thereby achieving close contact between the laminating plate 402 and the outer surface of the ingot mold 104. An inner groove 403 is provided on the end of the cooling chamber cabinet 3 facing the ingot mold 104. A pressure cylinder 404 is evenly and fixedly connected to the interior of the inner groove 403. The pressure plug 401 is movably connected to the pressure cylinder 404. The pressurized medium of the cooling chamber cabinet 3 directly contacts the pressure plug 401 through the pressure cylinder 404, thereby achieving the medium pressure transmission to the pressure plug 401 and achieving the outward extension capability of the pressure plug 401.

[0038] When the semicircular clamping block 202 synchronously drives the cooling chamber cabinet 3 to clamp on the outer surface of the ingot mold 104, due to the different outer diameters of the ingot mold 104 and the thermal expansion of the ingot mold 104 when the molten steel is injected, the clamping contact effect between the cooling chamber cabinet 3 and the ingot mold 104 is affected. Therefore, this embodiment uses a hydraulic clamping module to compensate for and buffer this error, and controls the flow difference between the delivery and discharge of the circulation pipe 303 through the pressure valve 304 to realize the pressurization operation of the medium inside the cooling chamber cabinet 3. The pressurized medium directly applies outward-extending pressure to the pressure plug 401 through the pressure cylinder 404, thereby realizing that the pressure plug 401 pushes the bonding plate 402 to make 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 chamber cabinet 3.

[0039] Figure 9 and Figure 10 As shown, 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. The heat-conducting pile 405 effectively improves the heat transfer capability of the pressure plug 401. 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 interior of the heat-through hole 406 and the bonding plate 402. The heat-conducting strip 407 and the heat-conducting pile 405 are both made of aluminum alloy. The heat-conducting strip 407 effectively improves the heat transfer capability between the pressure plug 401 and the bonding plate 402.

[0040] By fixing and embedding the heat-conducting pile 405 in the pressure plug 401, and the heat-conducting pile 405 extending into the pressure cylinder 404 to directly contact the cooling medium in the cooling chamber cabinet 3, the heat transfer effect of the pressure plug 401 is effectively improved, and then the heat-conducting strip 407 is used to improve the heat transfer capacity between the pressure plug 401 and the bonding plate 402, thereby effectively improving the cooling effect of the cooling chamber cabinet 3 on the ingot mold 104.

[0041] In view of current actual needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field 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: The invention comprises a chassis (1), wherein 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), both 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 a pipeline (301) connected to the cooling chamber cabinet (3), 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); The mold fixing mechanism (2) is fixedly connected to a control vehicle (204) at one end away from the ingot mold (104), and a circulation pump (302) is fixedly connected to the top of the control vehicle (204). Circulation pipes (303) are fixedly connected between the circulation pump (302) and the top and bottom of the cooling chamber cabinet (3). The cooling chamber cabinet (3) is fixedly connected to a hydraulic clamping module at one end facing the ingot mold (104), and a pressure valve (304) is fixedly connected to the middle of the circulation pipe (303). 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), the bonding plate (402) is in close contact with the outer surface of the ingot mold (104), the cooling chamber cabinet (3) is provided with an inner groove (403) at one end facing the ingot mold (104), the interior of the inner groove (403) is evenly fixedly connected to the pressure cylinder (404), and the pressure plug (401) is movably connected to the pressure cylinder (404); A heat-conducting pile (405) is fixedly embedded in the middle of the pressure plug (401), and 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). A heat-through hole (406) is provided at the hinged end between the pressure plug (401) and the bonding plate (402), and 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.

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), and 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 the two groups of bolt lug plates (107).

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