Movable heat preservation pouring equipment

Abstract

The invention belongs to the technical field of casting production, and discloses movable heat preservation pouring equipment which comprises a pouring ladle used for containing a metal solution, the pouring ladle is installed in an overturning frame, the overturning frame is rotatably installed on a sliding frame, the sliding frame is installed on a fixing frame in a sliding mode, and the sliding frame is driven by a power device to slide on the fixing frame. The pouring ladle comprises a furnace frame installed in the overturning frame, a ladle body arranged in a barrel shape is fixedly installed in the furnace frame, a furnace mouth frame is fixed to the pouring front side wall of the furnace frame, a barrel-shaped furnace mouth is arranged in the furnace mouth frame, and the interior of the barrel-shaped furnace mouth is communicated with the interior of the ladle body. The barrel wall of the ladle body and the barrel wall of the barrel-shaped furnace mouth are internally and jointly provided with an electromagnetic induction coil which is spirally wound; according to the invention, the mobile pouring equipment is adopted, the problem of poor casting quality caused by movement of a sand mold is solved, and meanwhile, the turnover pouring ladle with stable pouring is adopted, so that the situation that molten metal is wasted due to deviation of pouring is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of casting production, in particular to a mobile heat-insulating pouring equipment. Background Art

[0002] Casting is a process of heating metal to a molten state, pouring it into a pre-prepared sand mold, and forming a casting of the desired shape and size after the metal cools and solidifies. The casting process involves key steps such as metal melting, mold filling, cooling and solidification, and demolding and cleaning. After melting, the metal has good fluidity and can fill all parts of the mold. After cooling, it solidifies into a casting with a predetermined shape and performance.

[0003] The insulated pouring ladle is an important tool in the process of metal smelting and casting. It is mainly used to store and transport liquid metal and serves as a transfer station for liquid phase materials in the process of metal smelting and casting.

[0004] In the Chinese invention patent with patent application number 201410723621.2, a fully automatic pouring casting machine is proposed. The main problem of this patent is that during the pouring process, the sand mold is moved to the pouring position corresponding to the casting pouring liquid storage bag, and then the casting pouring liquid storage bag is turned over to complete the pouring action. However, the sand mold is moved after being filled with molten metal, which can easily lead to deviations in the dimensional accuracy and shape of the casting, internal defects in the casting, and reduced surface quality of the casting. In addition, the stability of the hoisted casting pouring liquid storage bag is relatively poor, and it is easy to have pouring deviations and lead to waste of molten metal. Summary of the invention

[0005] The main technical problem to be solved by the present invention is to provide a mobile thermal insulation pouring equipment. The mobile pouring equipment is used to solve the problem of poor casting quality caused by the movement of the sand mold. At the same time, a stable pouring flip casting bag is used to avoid the waste of molten metal due to pouring deviation.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: A mobile heat-insulating pouring device comprises a pouring ladle for holding a metal solution, wherein the pouring ladle is installed in a turning frame, the turning frame is rotatably installed on a slide, the slide is slidably installed on a fixed frame, and the slide is driven by a power device to slide on the fixed frame; The casting ladle comprises a furnace frame installed in the turning frame, a barrel-shaped ladle body is fixedly installed inside the furnace frame, a nozzle frame is fixed on the pouring front side wall of the furnace frame, a cylindrical nozzle is arranged in the nozzle frame, the interior of the cylindrical nozzle is connected with the interior of the ladle, and an electromagnetic induction coil wound in a spiral shape is commonly arranged in the barrel wall of the ladle body and the cylindrical wall of the cylindrical nozzle.

[0007] The following is a further optimization of the above technical solution by the present invention: The pouring front end of the turning frame is rotatably mounted on the slide frame through a rotating shaft, the rotating shaft is arranged along the sliding direction of the slide frame, and the pouring rear end of the turning frame is connected with a turning device.

[0008] Further optimization: a pair of mounting slots are provided at the tops of both side walls of the turning frame, and two pairs of mounting shaft rods are fixed on the outer wall of the furnace frame. Each mounting shaft rod is arranged along the axial direction of the rotating shaft, and the position of the mounting shaft rod corresponds one by one to the position of the mounting slot, and each mounting shaft rod is inserted into the corresponding mounting slot.

[0009] Further optimization: the turning device includes a transmission shaft arranged on the rear side of the casting bag, the transmission shaft extends along the sliding direction of the slide, the transmission shaft is rotatably installed on the top of the slide, and the two ends of the transmission shaft are respectively fixedly installed with driving sprockets, and a driven sprocket rotatably installed on the slide is arranged directly below each driving sprocket, and a lifting chain is commonly wound around each driving sprocket and the corresponding driven sprocket, and a connecting seat is fixed on each lifting chain, and the connecting seat is installed on the rear wall of the turning frame.

[0010] Further optimization: the power device includes a power shaft rotatably installed at the bottom of the slide, the power shaft is driven to rotate by a servo motor, transmission gears are fixedly installed on both ends of the power shaft, and two horizontally arranged racks are fixedly installed on the fixed frame. Each rack extends along the sliding direction of the slide, and the transmission gears are meshed with the corresponding racks.

[0011] Further optimization: two guide rails are fixedly installed on the fixed frame, each guide rail is extended along the length direction of the rack, and two guide rail grooves are provided at the bottom of the slide frame, and each guide rail is inserted into the corresponding guide rail groove.

[0012] Further optimization: the inner diameter of the cylindrical furnace nozzle gradually decreases from the connection end with the ladle to the other end.

[0013] Further optimization: the package body and the cylindrical furnace nozzle are both integrally formed by covering with high temperature resistant refractory materials.

[0014] The present invention adopts the above technical solution and has the following beneficial effects: 1. The above technical solution adopted by the present invention has an ingenious conception and a reasonable structure. The pouring operation can be completed quickly through the mobile pouring equipment, thus shortening the casting production cycle.

[0015] 2. The present invention does not need to move the sand mold, thus avoiding the problem of deformation or internal defects of the casting caused by the movement of the sand mold, solving the problem of poor casting quality caused by the movement of the sand mold, and thus ensuring the molding quality of the casting.

[0016] 3. The present invention adopts an inverted furnace nozzle type pouring ladle, which has high stability and allows the molten metal to flow smoothly into the sand mold, thereby helping to reduce defects inside the casting and improving the quality of the casting. It also prevents the furnace nozzle position from deviating due to shaking during the pouring process, thereby avoiding the waste of molten metal due to pouring deviation.

[0017] 4. The flip casting bag can realize continuous pouring of sand molds with a high degree of automation, which helps to maintain the stability of the casting production rhythm and significantly improve production efficiency.

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 1 It is a schematic diagram of the overall structure in an embodiment of the present invention; Figure 2 for Figure 1 Schematic cross-sectional view along the AA direction; Figure 3 It is a schematic diagram of the structure of the pouring bag in an embodiment of the present invention; Figure 4 for Figure 3 A top view schematic diagram of Figure 5 for Figure 4 Schematic cross-sectional view along the BB direction.

[0021] In the figure: 1. casting bag; 11. furnace frame; 12. bag body; 13. furnace nozzle frame; 14. cylindrical furnace nozzle; 15. electromagnetic induction coil; 16. mounting shaft; 17. furnace cover; 2. turning frame; 21. rotating shaft; 22. mounting notch; 3. slide frame; 4. fixed frame; 5. power device; 51. power shaft; 52. servo motor; 53. transmission gear; 54. rack; 6. turning device; 61. transmission shaft; 62. driving sprocket; 63. driven sprocket; 64. lifting chain; 65. connecting seat; 66. driving motor; 7. guide rail; 8. guide rail groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1-Figure 5 As shown together, a mobile heat-insulating pouring equipment includes a pouring ladle 1 for holding molten metal, the pouring ladle 1 is installed in a turning frame 2, the turning frame 2 is rotatably installed on a slide 3, the slide 3 is slidably installed on a fixed frame 4, and the slide 3 is driven by a power device 5 to slide on the fixed frame 4.

[0024] When traditional casting equipment performs casting operations, continuous casting is achieved by moving the sand mold. However, when the sand mold is moved after being filled with molten metal, the following problems may occur: The first is that when the molten metal has not completely solidified in the sand mold, the movement of the sand mold may cause the casting to deform, resulting in damage to the casting quality; The second is that the movement of the sand mold may cause the metal liquid that has not yet fully solidified to overflow, which will not only waste materials but also pollute the working environment; The third is that during the movement of the sand mold, external gas may be drawn into the molten metal to form pore defects, and may also cause uneven distribution of inclusions in the molten metal, affecting the quality of the casting.

[0025] The present invention converts the moving parts, keeps the sand mold in place, and drives the slide 3 to move horizontally through the power device 5 to pour the molten metal into the sand mold one by one, thereby quickly completing the pouring operation of all the sand molds and effectively shortening the casting production cycle.

[0026] In this embodiment, the sand mold has been correctly fixed below the pouring front side of the pouring bag 1 before the pouring work is carried out, and it remains stable during the pouring process.

[0027] In this embodiment, the structure in which the pouring bag 1 moves while the sand mold remains stationary can effectively ensure the accuracy of the pouring work and ensure the high quality of the casting formed in the sand mold after pouring.

[0028] Among them, the casting package 1 includes a furnace frame 11 installed in the turning frame 2, a barrel-shaped package body 12 is fixedly installed inside the furnace frame 11, a furnace nozzle frame 13 is fixed on the pouring front side wall of the furnace frame 11, a cylindrical furnace nozzle 14 is arranged in the furnace nozzle frame 13, and the interior of the cylindrical furnace nozzle 14 is connected with the interior of the package body 12.

[0029] Compared with the traditional hoisting pouring ladle, the present invention adopts a flip-type pouring ladle 1, which eliminates the possibility of shaking or position displacement of the pouring ladle 1 during the pouring process, thereby improving the stability of the pouring ladle 1, and also avoiding the problem of waste of molten metal caused by the displacement of the cylindrical furnace nozzle 14.

[0030] In this embodiment, the flip casting bag 1 can meet the casting work of complex shapes and meet the high precision requirements.

[0031] In this embodiment, the pouring operation is stable, thereby avoiding the influence on the quality of the casting.

[0032] In this embodiment, a furnace cover 17 is provided at the top opening of the casting ladle 1 .

[0033] like Figure 3-Figure 5 As shown together, the barrel wall of the cladding body 12 and the barrel wall of the cylindrical furnace nozzle 14 are both provided with an electromagnetic induction coil 15 which is wound in a spiral shape.

[0034] In this embodiment, the electromagnetic induction coil 15 can heat and keep the molten metal inside the package 12, maintaining a constant temperature and fluidity of the molten metal, which not only avoids the subsequent casting stability and the molding quality of the casting due to excessive fluctuations in the molten metal temperature, but also may cause a decrease in the mechanical properties of the metal.

[0035] In this embodiment, if the temperature of the molten metal drops too much, it may need to be reheated to reach the temperature required for casting, which increases the energy consumption and cost investment of production.

[0036] In this embodiment, after the temperature of the molten metal drops, the process of repeated heating and waiting for the molten metal to reach the required casting temperature prolongs the production cycle and reduces the production efficiency.

[0037] like Figure 2 As shown, the pouring front end of the turning frame 2 is rotatably mounted on the slide 3 via a rotating shaft 21 , the rotating shaft 21 is arranged along the sliding direction of the slide 3 , and the pouring rear end of the turning frame 2 is connected to a turning device 6 .

[0038] In this embodiment, an opening is formed on the sliding frame 3, and the turning frame 2 is placed inside the opening.

[0039] like Figure 1 and Figure 2 As shown together, a pair of mounting slots 22 are provided at the top of both side walls of the turning frame 2, and two pairs of mounting shafts 16 are fixed on the outer wall of the furnace frame 11. Each mounting shaft 16 is arranged along the axial direction of the rotating shaft 21, and the position of the mounting shaft 16 corresponds to the position of the mounting slot 22 one by one, and each mounting shaft 16 is inserted into the corresponding mounting slot 22.

[0040] In this embodiment, the installation shaft 16 and the installation notch 22 are arranged to achieve the support and fixation of the pouring bag 1 by the turning frame 2 and the turning limit.

[0041] Moreover, the turning device 6 includes a transmission shaft 61 arranged on the rear side of the casting bag 1. The transmission shaft 61 extends along the sliding direction of the slide 3. The transmission shaft 61 is rotatably installed on the top of the slide 3. The two ends of the transmission shaft 61 are respectively fixed with driving sprockets 62. A driven sprocket 63 rotatably installed on the slide 3 is arranged directly below each driving sprocket 62. A lifting chain 64 is commonly wound around each driving sprocket 62 and the corresponding driven sprocket 63. A connecting seat 65 is fixed on each lifting chain 64. The connecting seat 65 is installed on the rear wall of the turning frame 2.

[0042] In this embodiment, a driving motor 66 is fixedly mounted on the slide 3 , and a motor shaft of the driving motor 66 is drivingly connected to the transmission shaft 61 .

[0043] In this embodiment, the turning frame 2 can be lifted and turned not only by a sprocket and chain transmission mechanism, but also by a gear rack transmission mechanism, and also by a winch traction mechanism.

[0044] The above-mentioned rack and pinion transmission mechanism and winch traction mechanism constitute the prior art and are well known to ordinary technicians in this field, so they will not be described in detail here.

[0045] like Figure 2 As shown, the power device 5 includes a power shaft 51 rotatably mounted at the bottom of the slide 3, the power shaft 51 is driven to rotate by a servo motor 52, transmission gears 53 are fixedly mounted on both ends of the power shaft 51, and two horizontally arranged racks 54 are fixedly mounted on the fixed frame 4, each rack 54 is extended along the sliding direction of the slide 3, and the transmission gears 53 are meshed with the corresponding racks 54.

[0046] In addition, two guide rails 7 are fixedly mounted on the fixed frame 4 , and each guide rail 7 is extended along the length direction of the rack 54 . Two guide rail grooves 8 are provided at the bottom of the slide frame 3 , and each guide rail 7 is inserted into the corresponding guide rail groove 8 .

[0047] The inner diameter of the cylindrical furnace nozzle 14 gradually decreases from the end connected to the encasement 12 to the other end.

[0048] The encasement body 12 and the cylindrical furnace nozzle 14 are both formed in one piece by coating with high temperature resistant refractory materials.

[0049] The process of using the present invention to perform automated pouring is as follows: The first step is to place the sand molds to be loaded with molten metal for casting one by one along the moving direction of the pouring equipment so that the positions of the sand molds can correspond to the pouring positions of the pouring ladle 1; The second step is to open the furnace cover 17 on the top of the casting ladle 1, pour the molten metal into the ladle body 12, and the electromagnetic induction coil 15 heats and keeps the inside of the ladle body 12 warm, so that the temperature inside the ladle body 12 is always maintained within the predetermined casting temperature range; In the third step, the power device 5 drives the carriage 3 to move, driving the casting bag 1 to move to the casting position of the corresponding sand mold; In the fourth step, the driving motor 66 rotates forward, driving the driving sprocket 62, the driven sprocket 63 and the lifting chain 64 to rotate synchronously, so as to drive the rear wall of the turning frame 2 to rise, so that the turning frame 2 turns around the rotating shaft 21; In the fifth step, the turning frame 2 turns over to drive the casting ladle 1 to turn over, so that the molten metal in the ladle body 12 is poured out through the cylindrical furnace nozzle 14, and the outflowing molten metal is poured into the corresponding sand mold to complete the pouring work; Step 6: The driving motor 66 rotates in the opposite direction, driving the driving sprocket 62, the driven sprocket 63 and the lifting chain 64 to rotate in the opposite direction, and driving the rear wall of the overturning frame 2 to descend and return to its original position, so that the casting bag 1 rotates back to the vertical direction; Step 7: The power device 5 drives the carriage 3 to move again, driving the pouring bag 1 to move to the pouring position of the next adjacent sand mold; Repeat the above steps 4 to 7 continuously to complete the continuous pouring operation on the sand mold.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A mobile heat-insulating pouring device, comprising a pouring ladle (1) for holding a molten metal, characterized in that: The pouring bag (1) is installed in the turning frame (2), the turning frame (2) is rotatably installed on the slide frame (3), the slide frame (3) is slidably installed on the fixed frame (4), and the slide frame (3) is driven by a power device (5) to slide on the fixed frame (4); The pouring ladle (1) comprises a furnace frame (11) installed in a turning frame (2), a barrel-shaped ladle body (12) being fixedly installed inside the furnace frame (11), a furnace nozzle frame (13) being fixed on the pouring front side wall of the furnace frame (11), a cylindrical furnace nozzle (14) being arranged in the furnace nozzle frame (13), the interior of the cylindrical furnace nozzle (14) being connected to the interior of the ladle body (12), and an electromagnetic induction coil (15) being arranged in a spiral winding manner being arranged in the barrel wall of the ladle body (12) and the barrel wall of the cylindrical furnace nozzle (14).

2. A mobile heat preservation pouring equipment according to claim 1, characterized in that: The pouring front end of the turning frame (2) is rotatably mounted on the slide frame (3) via a rotating shaft (21), the rotating shaft (21) is arranged along the sliding direction of the slide frame (3), and the pouring rear end of the turning frame (2) is connected to a turning device (6).

3. A mobile heat preservation pouring equipment according to claim 2, characterized in that: A pair of mounting notches (22) are provided at the top of both side walls of the turning frame (2), and two pairs of mounting shaft rods (16) are fixed on the outer wall of the furnace frame (11), each mounting shaft rod (16) is arranged along the axial direction of the rotating shaft (21), the position of the mounting shaft rod (16) corresponds to the position of the mounting notch (22), and each mounting shaft rod (16) is inserted into the corresponding mounting notch (22).

4. A mobile heat-insulating pouring equipment according to claim 2, characterized in that: The turning device (6) comprises a transmission shaft (61) arranged at the rear side of the casting bag (1), the transmission shaft (61) extending along the sliding direction of the slide (3), the transmission shaft (61) being rotatably mounted on the top of the slide (3), and driving sprockets (62) being fixedly mounted on both ends of the transmission shaft (61), a driven sprocket (63) rotatably mounted on the slide (3) being arranged directly below each driving sprocket (62), a lifting chain (64) being wound around each driving sprocket (62) and the corresponding driven sprocket (63), and a connecting seat (65) being fixedly mounted on the rear wall of the turning frame (2).

5. The mobile heat-insulating pouring equipment according to claim 1, characterized in that: The power device (5) comprises a power shaft (51) rotatably mounted on the bottom of the slide (3), the power shaft (51) being driven to rotate by a servo motor (52), transmission gears (53) being fixedly mounted on both ends of the power shaft (51), two horizontally arranged racks (54) being fixedly mounted on the fixed frame (4), each rack (54) extending along the sliding direction of the slide (3), and the transmission gears (53) meshing with the corresponding racks (54).

6. The mobile heat-insulating pouring equipment according to claim 5, characterized in that: Two guide rails (7) are fixedly mounted on the fixed frame (4), each guide rail (7) extending along the length direction of the rack (54), and two guide rail grooves (8) are provided at the bottom of the slide frame (3), and each guide rail (7) is inserted into a corresponding guide rail groove (8).

7. The mobile heat-insulating pouring equipment according to claim 1, characterized in that: The inner diameter of the cylindrical furnace nozzle (14) gradually decreases from the end connected to the encasement body (12) to the other end.

8. The mobile heat-insulating pouring equipment according to claim 7, characterized in that: The encasement body (12) and the cylindrical furnace nozzle (14) are both integrally formed by coating with high temperature resistant refractory materials.

Images