Quenching and cooling device for die steel continuous casting billet after forging

Abstract

The invention relates to the technical field of die steel processing, and provides a post-forging quenching and cooling device for a die steel continuous casting billet, the post-forging quenching and cooling device comprises a die steel mounting rack and a positioning mechanism, and the post-forging quenching and cooling device is matched with elastic lifting and precise bearing of the positioning mechanism on the design technology of the die steel mounting rack; the reset spring provides elastic reset force. The length of rake teeth of the supporting rake is smaller than the distance between the brackets, and die steel can be accurately borne when separated from the mounting frame. Due to the elastic design of the reset spring, the supporting rake automatically descends to be immersed in the cold liquid box after bearing the die steel and automatically resets after quenching is completed, manual intervention is reduced, the supporting rake and the bracket are matched in size to ensure that the die steel is stably transferred from the mounting frame to the quenching pool, the risk of workpiece damage caused by falling collision deformation or mechanical grabbing is avoided, and the working efficiency is improved. The cooling efficiency is improved while the product performance is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of die steel processing, in particular to a die steel continuous casting billet post-forging quenching and cooling device. BACKGROUND

[0002] Die steel is the core material for manufacturing cold punching die, hot forging die, die casting die, etc., and the heat treatment quality directly affects the hardness, wear resistance and service life of the die. Quenching, as a key process of heat treatment, needs to achieve the transformation of austenite to martensite through rapid cooling, but the existing technology has the following significant problems: Process connection depends on manual operation, which is low in efficiency and poor in safety: heating, quenching, cooling and transfer are completed by independent equipment, which needs manual operation to lift and transfer the workpiece. The degree of automation is low, and the long exposure time of high-temperature workpiece increases the risk of oxidation and decarburization, reducing the performance of die steel; There are positioning deviations and mechanical interference in the workpiece transfer process: the mechanical hand or lifting device transfers the high-temperature workpiece, which is easy to cause collision due to positioning error, and the mechanical clamping workpiece is easy to cause deformation due to falling collision or workpiece damage caused by mechanical grabbing. Manual intervention leads to the extension of production rhythm, and the workpiece is easily damaged due to collision during transportation, which reduces the performance of die steel and work efficiency.

[0003] In view of this, the present application provides a die steel continuous casting billet post-forging quenching and cooling device. SUMMARY

[0004] The present application provides a die steel continuous casting billet post-forging quenching and cooling device, which solves the problem of low automation degree of die steel quenching device in related art and reduces the performance of die steel.

[0005] The technical scheme of the present application is as follows: a die steel continuous casting billet post-forging quenching and cooling device, comprising: a chain conveyor and a heating box fixed to the upper side of the chain conveyor, the heating box is provided with an inlet and an outlet at both ends, and a turnover plate is rotatably connected to the inner side of the upper end of the inlet and the outlet through a rotating shaft, one side of the chain conveyor is provided with a cold liquid tank, and the chain conveyor is provided with die steel mounting racks at equal intervals for placing die steels, and one side of the heating box is provided with a positioning mechanism for lowering the die steels after heating in the heating box to the cold liquid tank for cooling; One side of the positioning mechanism is provided with a transposition mechanism and a conveying frame, the transposition mechanism is used for conveying the die steels in the cold liquid tank to the conveying frame; A linkage mechanism is arranged between the transposition mechanism and the conveying frame, and the conveying frame can be driven during the conveying of the die steels by the transposition mechanism; The cold liquid tank is provided with a backwater mechanism for circulating the cooling liquid inside the cold liquid tank.

[0006] Preferably, the die steel mounting frame comprises two support rods fixed to the same chain plate, the upper sides of the two support rods are rotationally connected with horizontal plates, the outer walls of the two horizontal plates are fixed with brackets, the die steel is loaded through the brackets, and the side wall of the support rod is fixed with a jacking rod for touching the turnover plate.

[0007] Preferably, the landing mechanism comprises a fixed frame fixed to the top end of the heating box, one end of the fixed frame is fixed with a vertical frame, a lifting plate is slidably sleeved in the inner cavity of the vertical frame, two vertical shafts are fixed to the top of the inner cavity of the vertical frame, the vertical shafts slide into the inner side of the lifting plate, a reset spring is sleeved on the outer side of the vertical shaft, and the two ends of the reset spring are connected with the top end of the lifting plate and the top of the vertical frame, respectively.

[0008] Preferably, the landing mechanism further comprises a hanging rod fixed to the bottom end of the lifting plate, and the bottom end of the hanging rod is fixed with a supporting rake, the length of the supporting rake is less than the distance between the two brackets.

[0009] Preferably, the transposition mechanism comprises a connecting block fixed to the outer wall of the vertical frame, the bottom of the connecting block is fixedly provided with an electric hydraulic device, and the bottom end of the hydraulic rod of the electric hydraulic device is fixedly provided with a lifting track.

[0010] Preferably, a I-shaped sliding block is slidably connected to the inner side of the lifting track, the bottom end of the I-shaped sliding block is fixedly provided with a fixed seat, a shaft rod is fixedly sleeved in the fixed seat, the other end of the shaft rod is connected with a jacking rake, and the rake teeth on the jacking rake and the rake teeth on the supporting rake are staggered in the vertical direction.

[0011] Preferably, the transposition mechanism further comprises a panel fixed to one side of the vertical frame, and the outer wall of the panel is provided with a track slot, and the shaft rod is slidably penetrated into the inner side of the track slot.

[0012] Preferably, the conveying frame comprises a supporting frame and a conveying frame fixed to the top of the supporting frame, the inner side of the conveying frame is uniformly provided with rotating rollers, adjacent two rotating rollers are provided with chain transmission structures, adjacent two chain transmission structures are staggered, the chain transmission structure is provided on the outer side of the conveying frame, the chain transmission structure comprises two sprockets and a chain connecting the two sprockets, and the sprocket is coaxially fixed with the rotating roller. The lower side of the rotating roller on the side of the panel is supported by a jacking piece, the jacking piece comprises a jacking column fixed to the bottom of the cold liquid tank, the top end of the jacking column is fixedly provided with a wheel frame, and the inner side of the wheel frame is rotationally connected with two rotating wheels for supporting the rotating roller, and the maximum distance between the two rotating wheels is less than the diameter of the rotating roller.

[0013] Preferably, the linkage mechanism comprises a rotating rod fixedly connected with one of the roller ends, the rotating rod is rotationally connected with the side wall of the conveying frame, the other end of the rotating rod is fixedly connected with a gear, one side of the fixed seat is fixedly connected with a connecting plate, one end of the connecting plate is fixedly connected with a rack matched with the gear, the rack comprises a toothed plate and a toothed block, the toothed block is rotationally connected with the toothed plate through a rotating shaft, and a torsional spring is connected between the toothed plate and the toothed block outside the rotating shaft.

[0014] Preferably, the water return mechanism comprises a water falling frame arranged on the upper side of the cold liquid tank, the bottom end of the water falling frame is in an open state, the top end of the water falling frame is provided with a cold gas inlet, the side wall of the water falling frame is fixedly embedded with a horizontal pipe, and the outer wall of the horizontal pipe inside the water falling frame is uniformly provided with water spraying holes. The water return mechanism further comprises a water pump fixedly installed at one end of the cold liquid tank, and the water suction pipe on the water pump extends to the inside of the cold liquid tank, and the water discharge pipe on the water pump is fixedly communicated with the horizontal pipe.

[0015] The working principle and beneficial effects of the present application are as follows: 1. The mold steel mounting frame of the present application adopts dynamic support and self-resetting design: the mold steel mounting frame is composed of supporting rods, a rotatable horizontal plate, a bracket and a top rod. The top rod touches the turnover plate when entering and leaving the heating tank to realize automatic opening and closing. The horizontal plate automatically rotates with the position of the mold steel under the action of gravity to maintain the horizontal state of the mold steel. The cooperation of the top rod and the turnover plate realizes the automatic opening and closing of the heating tank inlet and outlet, reduces heat loss and improves the continuity of conveying. The dynamic rotation of the horizontal plate ensures that the mold steel always maintains a horizontal state during conveying and falling, avoiding the risk of uneven local cooling or falling caused by inclination, and improving process stability. 2. In the mold steel mounting frame design technology, the elastic lifting and precise receiving of the landing mechanism are matched: the landing mechanism is composed of a lifting plate, a lifting rod and a rake, and a reset spring provides elastic reset force. The rake teeth of the rake are shorter than the distance between the brackets, so that the mold steel can be accurately received when it is separated from the mounting frame. The elastic design of the reset spring makes the rake automatically descend and immerse in the cold liquid tank after receiving the mold steel, and automatically resets after quenching, reducing manual intervention. The size matching of the rake and the bracket ensures the smooth transfer of the mold steel from the mounting frame to the quenching tank, avoiding the risk of deformation caused by falling collision or mechanical grabbing, improving product performance and cooling efficiency. 3, The present application adopts transposition mechanism staggered tooth design and linkage conveying: the transposition mechanism adopts vertically staggered distribution of the tines of the supporting rake and the supporting rake, and the movement of the supporting rake is controlled by driving the lifting track and the I-shaped sliding block by the electric hydraulic device. The rack and pinion of the linkage mechanism is engaged, and the rack is designed with torsional spring to realize one-way transmission. The staggered tooth design enables the supporting rake to vertically pass through the gap between the supporting rakes, smoothly transferring the die steel from the quenching pool to the conveying frame, avoiding interference of the mechanism; the one-way transmission characteristics of the rack (the rack block can be turned over) ensure that the driving roller conveys the die steel when the supporting rake descends, and automatically disengages from the gear when it rises, and the driving rollers of the conveying frame are linked through chain transmission structure, and the adjacent chain transmissions are staggered. The driving gear of the linkage mechanism drives the first driving roller to rotate, and all the driving rollers are synchronized through the chain. The linkage mechanism converts the mechanical energy of the transposition mechanism into conveying power, realizes the automatic transportation of the quenched die steel, and reduces the energy consumption; 4, The device solves the problems of uneven cooling, low efficiency, high dependence on manual operation and easy wear of die steel in die steel quenching through the closed loop design of dynamic support → elastic quenching → staggered transfer → liquid cooling circulation → linkage conveying. The whole process automation of heating, quenching, cooling and transportation is realized by the cooperation of each mechanism, which significantly improves the production efficiency and product consistency. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0017] Figure 1 A first perspective view of a die steel continuous casting billet post-forging quenching and cooling device according to the present application; Figure 2 A second perspective view of a die steel continuous casting billet post-forging quenching and cooling device according to the present application; Figure 3 A schematic view of the structure of a die steel mounting frame according to the present application; Figure 4 A schematic view of the structure of a die steel mounting frame according to the present application; Figure 5 A schematic view of the structure of a die steel mounting frame according to the present application; Figure 4 A schematic view of the structure of a die steel mounting frame according to the present application; Figure 6 A schematic view of the structure of a die steel mounting frame according to the present application; Figure 7 A schematic view of the structure of a die steel mounting frame according to the present application; Figure 8 A schematic view of the structure of a die steel mounting frame according to the present application; Figure 9 A schematic view of the structure of a die steel mounting frame according to the present application; Figure 10 A schematic view of the structure of a die steel mounting frame according to the present application; Figure 11 The schematic view of the top support structure according to the present application; In the figure: 1, heating box; 11, turnover plate; 2, chain conveyor; 3, die steel mounting frame; 31, support rod; 32, cross plate; 33, bracket; 34, ejector rod; 4, cold liquid tank; 5, positioning mechanism; 51, fixed frame; 52, vertical frame; 53, vertical shaft; 54, return spring; 55, lifting plate; 56, boom; 57, rake; 6, transposition mechanism; 61, connecting block; 62, electric hydraulic device; 63, panel; 64, track groove; 65, lifting track; 66, top support rake; 67, fixed seat; 68, shaft; 69, I-shaped sliding block; 7, linkage mechanism; 71, rotating rod; 72, gear; 73, connecting plate; 74, rack; 75, torsional spring; 8, conveying frame; 81, support frame; 82, conveying frame; 83, rotating roller; 84, chain transmission structure; 85, top support; 851, top support column; 852, wheel frame; 853, rotating wheel; 9, water return mechanism; 91, water pump; 92, water suction pipe; 93, drain pipe; 94, water falling frame; 95, cold air inlet; 96, cross pipe. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application. Embodiment 1

[0019] Please refer to Figure 1 and Figure 6 A post-forging quenching and cooling device for die steel continuous casting billets, comprising a chain conveyor 2 and a heating box 1 fixed to the upper side of the chain conveyor 2, the heating box 1 is provided with an inlet and an outlet at both ends, respectively, the inner side of the inlet and the outlet is rotatably connected with a turnover plate 11 through a rotating shaft at the upper end, and the chain conveyor 2 is provided with a cold liquid tank 4 on one side. Among them, the cold liquid tank 4 is provided with a water return mechanism 9 for circulating the cooling liquid inside the cold liquid tank 4.

[0020] Specifically, the water return mechanism 9 comprises a water falling frame 94 arranged on the upper side of the cold liquid tank 4, the bottom end of the water falling frame 94 is in an open state, the top end of the water falling frame 94 is provided with a cold air inlet 95, the side wall of the water falling frame 94 is fixedly embedded with a horizontal pipe 96, and the outer wall of the horizontal pipe 96 located inside the water falling frame 94 is uniformly provided with water spraying holes.

[0021] Further, the water return mechanism 9 further comprises a water pump 91 fixedly installed at one end of the cold liquid tank 4, one end of a water suction pipe 92 on the water pump 91 extends to the inside of the cold liquid tank 4, and one end of a water discharge pipe 93 on the water pump 91 is fixedly communicated with the horizontal pipe 96.

[0022] In this embodiment, the water pump 91 is started, the water pump 91 draws out the cooling liquid inside the cold liquid tank 4 through the water suction pipe 92, and then transports the cooling liquid to the inside of the horizontal pipe 96 through the water discharge pipe 93, and then sprays the cooling liquid into the inside of the water falling frame 94 through the water spraying holes on the horizontal pipe 96, and then the cooling liquid falls back into the inside of the cold liquid tank 4 through the water falling frame 94, and in this process, the cold air can be introduced into the inside of the cold air inlet 95 through the external cold air equipment, so as to cool and cool the cooling liquid in the inside of the water falling frame 94. Embodiment 2

[0023] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , a die steel continuous casting billet forging quenching and cooling device, comprising all contents of embodiment 1, in addition, the chain plate conveyor 2 is provided with die steel mounting racks 3 at equal intervals for placing the die steel, and the heating box 1 is provided with a falling position mechanism 5 on one side for lowering the die steel after being heated in the inside of the heating box 1 to enter the cold liquid tank 4 for cooling.

[0024] Specifically, the die steel mounting rack 3 comprises two support rods 31 fixedly connected to the same chain plate, the upper sides of the two support rods 31 are rotatably connected with horizontal plates 32, the outer walls of the two horizontal plates 32 are fixedly connected with brackets 33, and the die steel is supported by the brackets 33, and the side wall of the support rod 31 is fixedly connected with a top rod 34 for abutting and turning the turnover plate 11.

[0025] Specifically, the falling position mechanism 5 comprises a fixed frame 51 fixedly connected to the top end of the heating box 1, a vertical frame 52 fixedly connected to one end of the fixed frame 51, a lifting plate 55 slidably sleeved in the inner cavity of the vertical frame 52, two vertical shafts 53 fixedly connected to the top of the vertical frame 52 and slidably extending to the inside of the lifting plate 55, and a reset spring 54 sleeved on the outside of the vertical shaft 53 and connected to the top end of the lifting plate 55 and the top of the vertical frame 52.

[0026] Further, the landing mechanism 5 further comprises a boom 56 fixed to the bottom end of the lifting plate 55, and a cradle 57 is fixed to the bottom end of the boom 56, and the length of the cradle 57 is less than the distance between the two brackets 33.

[0027] In the embodiment, the mold steel to be processed is placed between the two brackets 33 on the mold steel mounting rack 3, and is conveyed by the chain plate conveyor 2. Initially, when the mold steel mounting rack 3 enters and exits the inside of the heating box 1, the turnover plate 11 is turned over by the top rod 34 on the mold steel mounting rack 3, so that the mold steel mounting rack 3 can smoothly enter and exit the inside of the heating box 1. The mold steel is heated by the heating equipment such as the electric heating rod installed inside the heating box 1. Under the action of gravity, the turnover inclined turnover plate 11 can restore to the vertical state.

[0028] In the embodiment, when the mold steel on the mold steel mounting rack 3 is heated and conveyed out from the inside of the heating box 1, the chain plate conveyor 2 continues to convey the mold steel mounting rack 3, as shown in Figure 4 and Figure 5 , under the action of the brackets 33 and the gravity of the mold steel, the brackets 33 rotate on the cross plate 32, so that the mold steel is always in a horizontal state. As the mold steel mounting rack 3 conveys the mold steel downward, the cradle 57 can support the mold steel, so as to take the mold steel off the mold steel mounting rack 3. When the mold steel is placed on the cradle 57, under the action of the gravity of the mold steel, the lifting plate 55 is driven downward by the boom 56, so that the return spring 54 is stretched, and the cradle 57 places the heated mold steel in the cooling liquid tank 4 for cooling. On the contrary, once the mold steel is separated from the cradle 57, under the good elastic performance of the return spring 54, the lifting plate 55 can drive the boom 56 and the cradle 57 to move upward and reset. Embodiment 3

[0029] Please refer to Figure 2 , Figure 3 , Figure 5 , Figure 7 , Figure 8 , Figure 9 and Figure 10 , a mold steel continuous casting billet post-forging quenching and cooling device, which comprises all the contents of embodiment 2, in addition, the landing mechanism 5 is provided with a transposition mechanism 6 and a conveying rack 8 on one side, the mold steel placed in the cooling liquid tank 4 is conveyed by the transposition mechanism 6 and placed on the conveying rack 8. A linkage mechanism 7 is arranged between the transposition mechanism 6 and the conveying rack 8, which can drive the conveying rack 8 during the conveying of the mold steel by the transposition mechanism 6.

[0030] Specifically, the transposition mechanism 6 comprises a connecting block 61 fixedly connected to the outer wall of the vertical frame 52, and an electric hydraulic device 62 fixedly installed at the bottom of the connecting block 61. The bottom end of the hydraulic rod of the electric hydraulic device 62 is fixedly connected with a lifting rail 65.

[0031] Specifically, a I-shaped sliding block 69 is slidingly connected to the inner side of the lifting rail 65, the bottom end of the I-shaped sliding block 69 is fixedly connected with a fixing seat 67, the inside of the fixing seat 67 is fixedly sleeved with a shaft rod 68, and the other end of the shaft rod 68 is connected with a top support rake 66. The rake teeth on the top support rake 66 and the rake teeth on the supporting rake 57 are staggered in the vertical direction.

[0032] Further, the transposition mechanism 6 further comprises a panel 63 fixedly connected to one side of the vertical frame 52, the outer wall of the panel 63 is provided with a rail groove 64, and the shaft rod 68 is slidingly penetrated into the inner side of the rail groove 64.

[0033] Specifically, the conveying frame 8 comprises a support frame 81 and a conveying frame 82 fixedly connected to the top of the support frame 81. The inner side of the conveying frame 82 is uniformly provided with rotating rollers 83, and chain transmission structures 84 are arranged between adjacent two rotating rollers 83. The adjacent two chain transmission structures 84 are staggered, the chain transmission structure 84 is arranged on the outer side of the conveying frame 82, and the chain transmission structure 84 comprises two sprockets and a chain connecting the two sprockets. The sprocket is coaxially fixedly connected with the rotating roller 83. The lower side of the rotating roller 83 located on one side of the panel 63 is supported by a top supporting piece 85. The top supporting piece 85 comprises a top supporting column 851 fixedly connected to the bottom of the cold liquid tank 4, a wheel frame 852 fixedly connected to the top end of the top supporting column 851, and two rotating wheels 853 rotatably connected to the inner side of the wheel frame 852 for supporting the rotating roller 83. The maximum distance between the two rotating wheels 853 is less than the diameter of the rotating roller 83.

[0034] Specifically, the linkage mechanism 7 comprises a rotating rod 71 fixedly connected to the end of one of the rotating rollers 83, the rotating rod 71 is rotatably connected to the side wall of the conveying frame 82, the other end of the rotating rod 71 is fixedly connected with a gear 72, one side of the fixing seat 67 is fixedly connected with a connecting plate 73, one end of the connecting plate 73 is fixedly connected with a rack 74 matched with the gear 72, the rack 74 comprises a toothed plate and a toothed block, the toothed block is rotatably connected with the toothed plate through a rotating shaft, and a torsional spring 75 is connected between the toothed plate and the toothed block located on the outer side of the rotating shaft.

[0035] In this embodiment, after the mold steel on the supporting rake 57 is cooled, the electric hydraulic device 62 is started, the hydraulic rod of the electric hydraulic device 62 is retracted, the lifting rail 65 is moved upward, the lifting rail 65 drives the shaft rod 68 to move upward in the rail groove 64 through the fixing seat 67, and the shaft rod 68 drives the top support rake 66 to move upward in the vertical direction through the I-shaped sliding block 69. Figure 6 and Figure 8, when the supporting rake 66 moves up, the tines on the supporting rake 66 and the supporting rake 57 are staggered, so that the supporting rake 66 supports the mold steel on the supporting rake 57 and moves up. With the upward movement of the lifting rail 65 by the electric hydraulic device 62, referring to Figure 10 Under the guidance of the rail groove 64, the I-shaped sliding block 69 can slide left and right inside the lifting rail 65.

[0036] In this embodiment, when the supporting rake 66 moves to the position as shown in Figure 9 With the continued downward movement of the supporting rake 66, the tines on the supporting rake 66 pass through the gap between the adjacent two rotating rollers 83, thereby placing the mold steel supported on the supporting rake 66 on the rotating rollers 83.

[0037] In this embodiment, with the continued downward movement of the supporting rake 66, i.e. the downward movement of the fixed seat 67 and the shaft 68, the fixed seat 67 drives the connecting plate 73 to move downward, the connecting plate 73 drives the gear 72 to rotate through the rack 74, the gear 72 drives one of the rotating rollers 83 to rotate through the rotating rod 71, all the rotating rollers 83 rotate synchronously in the same direction under the action of the chain transmission structure 84, and the mold steel is transported through the rotating rollers 83. Then, the supporting rake 66 is reset by the electric hydraulic device 62, and in this process, the rack 74 does not cause the gear 72 to rotate, the teeth on the rack 74 are flipped upward under the action of the rotating shaft, and once the rack 74 is staggered with the gear 72, the teeth on the rack 74 are flipped and reset under the action of the torsional spring 75.

[0038] Working principle and use process: First, place the mold steel to be processed between the two brackets 33 on the mold steel mounting frame 3, and transport it through the chain conveyor 2. Initially, when the mold steel mounting frame 3 enters and exits the inside of the heating box 1, the top rod 34 on the mold steel mounting frame 3 touches and flips the flip plate 11, so that the mold steel mounting frame 3 can smoothly enter and exit the inside of the heating box 1. The mold steel is heated by the electric heating rod and other heating equipment installed inside the heating box 1, and under the action of gravity, the flip plate 11 tilted by flipping can restore to the vertical state. It should be noted that the heating box 1 of the present application can be regarded as a heating module. In actual production and processing, the heating box 1 is relatively long (it can heat multiple groups of mold steel on the mold steel mounting frame 3 at the same time), and only a small amount of heat is lost during the entry and exit of the device, which does not have a substantial impact on the processing work. In actual operation, a local protective atmosphere zone can be formed by continuously introducing inert gas (such as nitrogen) into the inlet and outlet areas during the short period when the flip plate 11 is opened, effectively isolating air and reducing oxidation. This improvement does not change the core structure of the present application and is prior art, which will not be described in detail.

[0039] When the mold steel heating on the mold steel mounting frame 3 is completed and transported out from the inside of the heating box 1, the chain plate conveyor 2 continues to transport the mold steel mounting frame 3, see Figure 4 and Figure 5 Under the action of the bracket 33 and the gravity of the mold steel, the bracket 33 rotates on the horizontal plate 32, so that the mold steel is always in a horizontal state. As the mold steel mounting frame 3 transports the mold steel downward, the mold steel can be supported by the carrier rake 57, so as to take the mold steel off the mold steel mounting frame 3. When the mold steel is placed on the carrier rake 57, under the action of the gravity of the mold steel, the lifting plate 55 is driven downward by the lifting rod 56, so that the return spring 54 is stretched, and the carrier rake 57 places the mold steel heated to completion in the cooling liquid tank 4 for cooling. Conversely, once the mold steel is separated from the carrier rake 57, under the good elastic performance of the return spring 54, the lifting plate 55 can drive the lifting rod 56 and the carrier rake 57 to move upward and reset.

[0040] It can be understood that the core function of the horizontal plate 32 is to realize the "dynamic horizontal keeping" and "automatic unloading" of the mold steel. Dynamic horizontal keeping: the horizontal plate 32 is connected with the supporting rod 31 through the rotating shaft, so that the whole bracket 33 can swing slightly. When the chain plate conveyor 2 drives the mold steel mounting frame 3 to run, especially through the turnover plate 11 at the inlet and outlet of the heating box 1. The swing design of the horizontal plate 32 can be self-adaptively adjusted to ensure that the mold steel thereon basically keeps horizontal in various working conditions, preventing the mold steel from sliding or being unevenly stressed due to inclination.

[0041] Automatic unloading: as shown in the description and Figure 4 and Figure 5 When the mold steel mounting frame 3 runs to the above of the landing mechanism 5, under the action of the gravity of the mold steel, the horizontal plate 32 will rotate, so that the mold steel is lowered in a horizontal state. This action helps the mold steel to cross the carrier rake 57 stably and smoothly, and completes the automatic handover from the mounting frame to the quenching station, avoiding rigid collision.

[0042] In addition, it should be noted that in the initial stage, the external force for turning over the turnover plate 11 is provided by the jacking rod 34; when the mold steel advances to a specific position, the turnover plate 11 contacts with the horizontal plate 32, at which time the external force is transferred to the horizontal plate 32. The turnover plate 11 is mainly made of light and heat-insulating material. Due to the light weight, only a small pushing force is needed to turn it over. During the movement of the horizontal plate 32 with the chain plate conveyor 2, one end of the horizontal plate 32 can turn over the turnover plate 11. Under the limiting action of the bracket 33 (as shown in Figure 3 ), even if the horizontal plate 32 drives the bracket 33 to tilt slightly, it will not cause the mold steel loaded thereon to fall off.

[0043] After the mold steel on the supporting rake 57 is cooled, the electric hydraulic device 62 is started, the hydraulic rod of the electric hydraulic device 62 is retracted, the lifting rail 65 is moved up, the lifting rail 65 drives the shaft rod 68 to move up in the rail groove 64 through the fixed seat 67, see Figure 6 With Figure 8 When the supporting rake 66 moves up, the supporting rake 66 supports the mold steel placed on the supporting rake 57 and moves up because the rake teeth on the supporting rake 66 and the supporting rake 57 are staggered. Figure 10 Under the guidance and constraint of the rail groove 64, the I-shaped sliding block 69 can slide left and right inside the lifting rail 65.

[0044] When the supporting rake 66 moves to the position as shown in Figure 9 When the supporting rake 66 continues to move down, the rake teeth on the supporting rake 66 pass through the gap between the adjacent two rotating rollers 83 and move down, so that the mold steel supported on the supporting rake 66 is placed on the rotating rollers 83.

[0045] When the supporting rake 66 continues to move down, that is, the fixed seat 67 and the shaft rod 68 move down, the fixed seat 67 drives the connecting plate 73 to move down, the connecting plate 73 drives the gear 72 to rotate through the rack 74, the gear 72 drives one of the rotating rollers 83 to rotate through the rotating rod 71, all the rotating rollers 83 rotate synchronously and in the same direction under the action of the chain transmission structure 84, and the mold steel is transported through the rotating rollers 83. Then, the supporting rake 66 is reset through the electric hydraulic device 62, in this process, the gear 72 is not rotated by the rack 74, the tooth blocks on the rack 74 are flipped up under the action of the rotating shaft, and once the rack 74 is staggered with the gear 72, the tooth blocks on the rack 74 are flipped and reset under the action of the torsional spring 75.

[0046] In the cooling work, the water pump 91 is started, the water pump 91 draws out the cooling liquid inside the cooling liquid tank 4 through the water suction pipe 92, and transports the cooling liquid to the inside of the horizontal pipe 96 through the drain pipe 93, sprays the cooling liquid into the falling water frame 94 through the water spraying holes on the horizontal pipe 96, and re-falls into the inside of the cooling liquid tank 4 through the falling water frame 94, and in this process, the cooling liquid inside the falling water frame 94 can be cooled by the cold air introduced into the cold air inlet 95 through the external cold air equipment.

[0047] It is worth noting that the circuits, electronic components and modules involved in the present application are all prior art, and those skilled in the art can realize them without further description, and the content protected by the present application does not involve improvement of software and methods.

[0048] The above merely preferred embodiments of the present application are not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A post-forging quenching and cooling apparatus for a die steel continuous cast billet, comprising: The chain plate conveyor (2) and the heating box (1) fixed to the upper side of the chain plate conveyor (2), the heating box (1) is provided with inlet and outlet at both ends, the inner side of the inlet and outlet is rotatably connected with the turnover plate (11) through the rotating shaft, one side of the chain plate conveyor (2) is provided with the cold liquid tank (4), characterized in that: The chain plate conveyor (2) is provided with a mold steel mounting frame (3) for placing the mold steel at equal intervals, and the heating box (1) is provided with a positioning mechanism (5) on one side, which is used for lowering the mold steel after heating in the heating box (1) and making it enter the cold liquid tank (4) for cooling; The positioning mechanism (5) is provided with a transposition mechanism (6) and a conveying frame (8) on one side, the mold steel lowered into the cold liquid tank (4) is conveyed by the transposition mechanism (6) and placed on the conveying frame (8); The linkage mechanism (7) is arranged between the transposition mechanism (6) and the conveying frame (8), which can drive the conveying frame (8) during the conveying of the mold steel by the transposition mechanism (6); The cold liquid tank (4) is provided with a water return mechanism (9) for circulating the cooling liquid inside the cold liquid tank (4).

2. An apparatus for post-forging quenching and cooling of a die steel continuous cast billet according to claim 1, characterized in that, The mold steel mounting frame (3) includes two support rods (31) fixed to the same chain plate, the upper side of the two support rods (31) is rotatably connected with the horizontal plate (32), the outer wall of the two horizontal plates (32) is fixedly connected with the bracket (33), the mold steel is supported by the bracket (33), and the side wall of the support rod (31) is fixedly connected with the top rod (34) for touching the turnover plate (11).

3. An apparatus for post-forging quenching and cooling of a die steel continuous cast billet according to claim 2, characterized in that, The positioning mechanism (5) includes a fixed frame (51) fixed to the top end of the heating box (1), one end of the fixed frame (51) is fixedly connected with a vertical frame (52), the vertical frame (52) is slidably sleeved with a lifting plate (55), the inner cavity of the vertical frame (52) is fixedly connected with two vertical shafts (53), the vertical shafts (53) are slidably extended to the inner side of the lifting plate (55), the outer side of the vertical shaft (53) is sleeved with a reset spring (54), and the two ends of the reset spring (54) are connected with the top end of the lifting plate (55) and the top of the vertical frame (52).

4. An apparatus for post-forging quenching and cooling of a die steel continuous cast billet according to claim 3, characterized in that, The positioning mechanism (5) further includes a boom (56) fixed to the bottom end of the lifting plate (55), the bottom end of the boom (56) is fixedly connected with a rake (57), and the length of the rake (57) is less than the distance between the two brackets (33).

5. An apparatus for post-forging quenching and cooling of a die steel continuous cast billet according to claim 4, characterized in that, The transposition mechanism (6) includes a connecting block (61) fixed to the outer wall of the vertical frame (52), the bottom of the connecting block (61) is fixedly connected with an electric hydraulic device (62), and the bottom of the hydraulic rod of the electric hydraulic device (62) is fixedly connected with a lifting rail (65).

6. An apparatus for post-forging quenching and cooling of a die steel continuous cast billet according to claim 5, characterized in that, The I-shaped sliding block (69) is slidably connected in the lifting track (65), the bottom end of the I-shaped sliding block (69) is fixedly connected with a fixing seat (67), the inside of the fixing seat (67) is fixedly sleeved with a shaft rod (68), the other end of the shaft rod (68) is connected with a top support rake (66), and the rake teeth on the top support rake (66) are staggered in the vertical direction with the rake teeth of the rake (57).

7. An apparatus for post-forging quenching and cooling of a die steel continuous cast billet according to claim 6, characterized in that, The transposition mechanism (6) further comprises a panel (63) fixed to one side of the vertical frame (52), an outer wall of the panel (63) is provided with a track groove (64), and the shaft rod (68) is slidably arranged in the track groove (64).

8. An apparatus for post-forging quenching and cooling of a die steel continuous cast billet according to claim 7, characterized in that, The conveying frame (8) comprises a support frame (81) and a conveying frame (82) fixed to the top of the support frame (81), a plurality of rotating rollers (83) are uniformly arranged in the conveying frame (82), chain transmission structures (84) are arranged between adjacent two rotating rollers (83), adjacent two chain transmission structures (84) are staggered, the chain transmission structure (84) is arranged outside the conveying frame (82), the chain transmission structure (84) comprises two sprockets and a chain connecting the two sprockets, and the sprocket is coaxially fixed with the rotating roller (83). The lower side of the rotating roller (83) on one side of the panel (63) is supported by a top support piece (85), the top support piece (85) comprises a top support column (851) fixed to the bottom of the cold liquid tank (4), the top end of the top support column (851) is fixedly connected with a wheel frame (852), two rotating wheels (853) are rotatably connected to the inner side of the wheel frame (852), and the two rotating wheels (853) are used to support the rotating roller (83), and the maximum distance between the two rotating wheels (853) is less than the diameter of the rotating roller (83).

9. An apparatus for post-forging quenching and cooling of a die steel continuous cast billet according to claim 8, characterized in that, The linkage mechanism (7) comprises a rotating rod (71) fixed to one end of one of the rotating rollers (83), the rotating rod (71) is rotatably connected to the side wall of the conveying frame (82), the other end of the rotating rod (71) is fixedly connected with a gear (72), one side of the fixing seat (67) is fixedly connected with a connecting plate (73), one end of the connecting plate (73) is fixedly connected with a rack (74) matched with the gear (72), the rack (74) comprises a toothed plate and a toothed block, the toothed block is rotatably connected to the toothed plate through a rotating shaft, and a torsional spring (75) is connected between the toothed plate and the toothed block outside the rotating shaft.

10. An apparatus for post-forging quenching and cooling of a die steel continuous cast billet according to claim 9, characterized in that, The water return mechanism (9) comprises a water falling frame (94) arranged on the upper side of the cold liquid tank (4), the bottom end of the water falling frame (94) is in an open state, the top end of the water falling frame (94) is provided with a cold air inlet (95), the side wall of the water falling frame (94) is fixedly embedded with a horizontal pipe (96), and the outer wall of the horizontal pipe (96) inside the water falling frame (94) is uniformly provided with a water spraying hole. The water return mechanism (9) further comprises a water pump (91) fixedly installed at one end of the cold liquid tank (4), one end of a water suction pipe (92) on the water pump (91) extends to the inside of the cold liquid tank (4), and one end of a water discharge pipe (93) on the water pump (91) is fixedly communicated with the horizontal pipe (96).

Images