A floating forming mold for a nozzle brick and a preparation method thereof

Abstract

The application belongs to the technical field of molds, and particularly relates to a floating forming mold for a nozzle brick and a preparation method thereof. The following scheme is provided, which comprises a forming table, the top of the forming table is provided with a supporting mechanism, the top of the supporting mechanism is provided with a mold table, the top of the mold table is provided with a mold groove, the two sides of the top of the forming table are both connected with a supporting plate through bolts, the opposite side of the two supporting plates close to the top is connected with a fixing plate through bolts, the bottom of the fixing plate is provided with a pressing mechanism, the position of the pressing mechanism corresponds to the position of the mold table, and the inside of the mold table is provided with a jacking mechanism. The application can effectively extrude the top and bottom of raw materials, so as to improve the compactness of the extrusion forming of the raw materials, prevent the nozzle brick from being loose after forming due to the low compactness during extrusion, and thus affect the forming effect of the nozzle brick.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of molds, in particular to a water nozzle brick floating forming mold and a preparation method. BACKGROUND

[0002] In the process of preparing a steel ingot product, the molten steel is first placed in a ladle, and then poured into a steel ingot mold for forming. The water nozzle brick is a refractory material outlet for molten steel embedded in the seat brick at the bottom of the ladle, and is an important functional refractory element essential for the casting process of the billet. During the steel pouring process, the water nozzle brick plays a role in flow guiding and rectifying. Therefore, the quality of the water nozzle brick directly affects the quality of the steel ingot product. The water nozzle brick needs to be formed using a water nozzle brick mold before being fired.

[0003] According to the search, a water nozzle brick floating forming mold is disclosed in Chinese patent application No. CN220840734U. The mold body includes a forming groove in the inner wall of the upper end, a circular plate is slidably installed in the inner wall of the forming groove, a stirring device is provided on the inner wall of the inner rod for stirring the material inside the forming groove, and a discharging assembly is provided on the inner wall of the mold body to enable the circular plate to move upward and push the water nozzle brick out of the forming groove. The utility model is provided with a discharging assembly powered by a second motor to enable the sliding sleeve to push the circular plate and drive the formed water nozzle brick to move upward and away from the forming groove. This water nozzle brick floating forming mold effectively improves the discharging efficiency of the water nozzle brick, making the discharging of the water nozzle brick more convenient and improving the processing efficiency of the water nozzle brick to a certain extent. It solves the problem of time and labor consumption caused by the friction between the water nozzle brick and the cavity, which causes the cavity to have adsorption force on the water nozzle brick, making it difficult to remove the water nozzle brick.

[0004] The existing forming mold usually places the raw materials inside the mold when the water nozzle brick is being formed by extrusion. However, the existing extrusion method is usually single-directional from top to bottom, which results in a small adhesive force between the raw materials, making the formed water nozzle brick loose and affecting the formation of the water nozzle brick. SUMMARY

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] A water nozzle brick floating forming mold, comprising a forming table, a support mechanism is provided on the top of the forming table, a mold table is provided on the top of the support mechanism, a mold groove is provided on the top of the mold table, a support plate is connected to the top of the forming table on both sides through bolts, a fixed plate is connected to the side of the two support plates opposite to the top through bolts, a pressing mechanism is provided at the bottom of the fixed plate, the position of the pressing mechanism corresponds to the position of the mold table, and a jacking mechanism is provided in the mold table.

[0007] Preferably, the supporting mechanism comprises a base plate, a plurality of positioning rods and a plurality of limiting plates, the bottom of the base plate is connected with the top of the forming table by bolts, the four corners of the top of the base plate are welded with the positioning rods, the limiting plates are fixedly sleeved on the circumferential outer wall of the positioning rods, the outer wall of the positioning rods is slidingly sleeved with a positioning ring, and the positioning ring is connected with the mold table by bolts on one side.

[0008] Preferably, the lifting mechanism comprises a supporting pad, two limiting blocks, an air bag, a pressing block and a piston plate, one side of the two limiting blocks is connected with the inner wall of the mold groove by bolts, the supporting pad is slidingly connected with the inner wall of the mold groove, the air bag is located between the bottom of the supporting pad and the inner wall of the bottom of the mold groove, one side of the mold table is provided with a slot, the slot is slidingly connected with the piston plate, the bottom of the piston plate is connected with the slot by a spring through bolts, a guide hole is formed between one side of the slot and the air bag, a conduit is arranged between the two guide holes, and the top of the piston plate is connected with the pressing block by bolts.

[0009] Preferably, the pressing mechanism comprises a connecting plate, a hydraulic cylinder, a support, a supporting plate and a pressing plate, the bottom of the hydraulic cylinder is connected with the top of the connecting plate by bolts, the top of the fixed plate is connected with the support by bolts, a through hole is formed between the top of the support and the top of the fixed plate, the two through holes are fixedly connected with the hydraulic cylinder, the bottom of the connecting plate is connected with the top of the supporting plate by bolts, and the bottom of the supporting plate is connected with the pressing plate by bolts.

[0010] Preferably, one side of each of the two supporting plates is provided with a positioning opening, and the inner walls of the two positioning openings are slidingly connected with positioning plates, and one side of the two positioning plates close to the top is connected with the fixed plate by bolts.

[0011] Preferably, the two sides of the supporting mechanism are provided with a vibration mechanism and the vibration mechanism is matched with the pressing mechanism.

[0012] Preferably, the vibration mechanism comprises a transmission assembly, a connecting block and a connecting shaft, one side of the connecting shaft is connected with the positioning plate by bolts, the other side of the connecting shaft is connected with the connecting block by bolts, and the connecting block is connected with the mold table through the transmission assembly.

[0013] Preferably, the transmission assembly comprises two first racks, two gears, a rotating rod, a half gear and two second racks, one side of each of the two first racks is connected with the connecting block by bolts, the two sides of the base plate are connected with gear racks by bolts, the opposite sides of the gear racks are rotatably connected with the rotating rod through bearings, the two gears are fixedly sleeved on the two sides of the circumferential outer wall of the rotating rod, the first racks are engaged with the gears, the half gear is fixedly sleeved on the circumferential outer wall of the rotating rod, one side of the second rack is connected with the mold table by bolts, and the second rack is engaged with the half gear.

[0014] A floating forming method of a water gap brick, the specific steps are:

[0015] S1: when the water gap brick is formed, the raw material is filled into the mold groove;

[0016] S2: after filling, the pressing mechanism is started, the pressing plate is driven downward, and the raw material is extruded and formed by the pressing mechanism;

[0017] S3: when the raw material is extruded and formed by the pressing mechanism, the connecting plate drives the positioning plate to move downward synchronously, at this time, the connecting block drives the first rack to move downward, and the first rack drives the gear to rotate by meshing when moving downward, and the gear drives the rotating rod to rotate synchronously when rotating, and the rotating rod drives the half gear to rotate when rotating, when the half gear meshes with the second rack when rotating, at this time, the second rack drives the mold table to move upward under the action of meshing, and with the continuous rotation of the half gear, the meshing between the half gear and the second rack disappears, at this time, the mold table moves downward under the action of gravity, the mold table can be driven to move up and down reciprocatingly by the vibration mechanism, and the raw material in the mold groove can be vibrated and compacted by the vibration of the mold table;

[0018] S4: when the pressing plate moves downward, it will contact with the pressing block, at this time, the pressing block drives the piston plate to slide downward in the slot under the action of the pressing plate, the air pressure in the slot increases with the downward movement of the piston plate, the gas in the slot is transported to the inside of the air bag through the pipe under the action of air pressure, at this time, the air pressure in the air bag increases with the input of gas, the air bag is fixed under the action of air pressure, and the inflated air bag pushes the supporting pad upward, the top and bottom of the raw material can be effectively extruded by the cooperation between the pressing mechanism and the lifting mechanism;

[0019] S5: after extrusion forming, the formed water gap brick is taken out.

[0020] The beneficial effects of the present application are:

[0021] 1. The present application sets up the down mechanism and jacking mechanism, when the water nozzle brick is formed, the raw materials are filled into the mold groove, after filling, the down mechanism is started, the down plate is driven to move down, the raw materials are extruded by the down mechanism, during the process, the down plate contacts the pressing block when moving down, the pressing block drives the piston plate to slide down in the slot under the action of the down plate, the air pressure in the slot increases with the downward movement of the piston plate, the gas in the slot is transported into the air bag through the pipe under the action of air pressure, at this time, the air pressure in the air bag increases with the input of gas, the air bag is fixed under the action of air pressure, the inflated air bag pushes the support pad up, the top and bottom of the raw materials can be effectively extruded by the cooperation between the down mechanism and the jacking mechanism, so as to improve the compactness of the extruded raw materials, prevent the water nozzle brick from loosening after forming due to low compactness, and affect the forming effect of the water nozzle brick;

[0022] 2. The present application sets up the down mechanism and vibration mechanism, when the raw materials are extruded by the down mechanism, the connecting plate drives the positioning plate to move down synchronously, at this time, the connecting block drives the first rack to move down, the first rack drives the gear to rotate through meshing when moving down, the gear drives the rotating rod to rotate synchronously when rotating, the rotating rod drives the half gear to rotate when rotating, the second rack drives the mold table to move up when meshing with the half gear when rotating, with the continuous rotation of the half gear, the meshing between the half gear and the second rack disappears, at this time, the mold table moves down under the action of gravity, the mold table is driven to move up and down reciprocatingly by the vibration mechanism, the raw materials in the mold groove are vibrated by the vibration of the mold table, so as to make the raw materials distribute uniformly, prevent the raw materials from accumulating together due to uneven distribution, and affect the forming of the water nozzle brick. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The structure diagram of the water nozzle brick floating forming mold is provided;

[0024] Figure 2 The main structure diagram of the water nozzle brick floating forming mold is provided;

[0025] Figure 3 The support mechanism structure diagram of the water nozzle brick floating forming mold is provided;

[0026] Figure 4 The jacking mechanism structure diagram of the water nozzle brick floating forming mold is provided;

[0027] Figure 5 This is a schematic diagram of the pressing mechanism of a floating molding die for sprue bricks proposed in this invention.

[0028] Figure 6 This is a schematic diagram of the vibration mechanism structure of a floating molding die for sprue bricks proposed in this invention.

[0029] Figure 7 This is a schematic diagram of the transmission component structure of a floating molding die for sprue bricks proposed in this invention.

[0030] In the attached diagram: 1. Forming table; 2. Support mechanism; 3. Support plate; 4. Positioning port; 5. Positioning plate; 6. Fixing plate; 7. Pressing mechanism; 8. Connecting plate; 9. Vibration mechanism; 10. Pad plate; 11. Positioning rod; 12. Limiting plate; 13. Mold table; 14. Mold groove; 15. Support pad; 16. Limiting block; 17. Lifting mechanism; 18. Groove; 19. Airbag; 20. Guide tube; 21. Spring; 22. Piston plate; 23. Pressure block; 24. Support plate; 25. Pressing plate; 26. Hydraulic cylinder; 27. Bracket; 28. Coupling; 29. ​​Connecting block; 30. Transmission assembly; 31. First rack; 32. Gear frame; 33. Rotating rod; 34. Half gear; 35. Gear; 36. Second rack. Detailed Implementation

[0031] Example 1, referring to Figures 1-5 A floating molding die for sprue bricks includes a molding platform 1, a support mechanism 2 on the top of the molding platform 1, a mold platform 13 on the top of the support mechanism 2, a mold groove 14 on the top of the mold platform 13, support plates 3 bolted to both sides of the top of the molding platform 1, and a fixing plate 6 bolted to one side of the two support plates 3 near the top, a pressing mechanism 7 at the bottom of the fixing plate 6, the position of the pressing mechanism 7 corresponding to the position of the mold platform 13, and a lifting mechanism 17 inside the mold platform 13, which can effectively squeeze the top and bottom of the raw material to improve the compactness of the raw material extrusion molding, and prevent the sprue bricks from becoming loose due to low compactness during extrusion, thus affecting the molding effect of the sprue bricks.

[0032] Based on the above, the support mechanism 2 includes a pad 10, multiple positioning rods 11 and multiple limiting plates 12. The bottom of the pad 10 is connected to the top of the forming table 1 by bolts. The four corners of the top of the pad 10 are welded to the positioning rods 11. The limiting plates 12 are fixedly sleeved on the outer circumference of the positioning rods 11. A positioning ring is slidably sleeved on the outer wall of the positioning rods 11. One side of the positioning ring is connected to the mold table 13 by bolts.

[0033] Based on the above, the lifting mechanism 17 includes a support pad 15, two limiting blocks 16, an air bladder 19, a pressure block 23, and a piston plate 22. One side of the two limiting blocks 16 is bolted to the inner wall of the mold groove 14. The support pad 15 is slidably connected to the inner wall of the mold groove 14. The air bladder 19 is located between the bottom of the support pad 15 and the bottom inner wall of the mold groove 14. A slot 18 is opened on one side of the mold table 13. The slot 18 is slidably connected to the piston plate 22. A spring 21 is bolted between the bottom of the piston plate 22 and the slot 18. A guide hole is opened between one side of the slot 18 and the air bladder 19. A guide tube 20 is provided between the two guide holes. The top of the piston plate 22 is bolted to the pressure block 23.

[0034] Based on the above, the pressing mechanism 7 includes a connecting plate 8, a hydraulic cylinder 26, a bracket 27, a support plate 24, and a pressing plate 25. The bottom of the hydraulic cylinder 26 is bolted to the top of the connecting plate 8, and the top of the fixing plate 6 is bolted to the bracket 27. A through hole is provided between the top of the bracket 27 and the top of the fixing plate 6, and the two through holes are fixedly connected to the hydraulic cylinder 26. The bottom of the connecting plate 8 is bolted to the top of the support plate 24, and the bottom of the support plate 24 is bolted to the pressing plate 25.

[0035] Based on the above, a positioning port 4 is provided through one side of each of the two support plates 3, and a positioning plate 5 is slidably connected to the inner wall of each of the two positioning ports 4. The two positioning plates 5 are connected to the fixing plate 6 by bolts at the top position of one side of each positioning plate 5.

[0036] Example 2, refer to Figures 1-7 A floating molding die for sprue bricks, compared with embodiment 1, is provided with a vibration mechanism 9 between the two sides of the support mechanism 2 and the mold table 13, and the vibration mechanism 9 and the pressing mechanism 7 cooperate with each other.

[0037] Based on the above, the vibration mechanism 9 consists of a transmission component 30, a connecting block 29 and a connecting shaft 28. One side of the connecting shaft 28 is connected to the positioning plate 5 by bolts, and the other side of the connecting shaft 28 is connected to the connecting block 29 by bolts. The connecting block 29 is connected to the mold table 13 by the transmission component 30.

[0038] Based on the above, the transmission assembly 30 comprises two first racks 31, two gears 35, a rotating rod 33, a half gear 34, and two second racks 36. One side of each of the two first racks 31 is bolted to the connecting block 29. Both sides of the pad 10 are bolted to gear frames 32. The opposite sides of the gear frames 32 are rotatably connected to the rotating rod 33 via bearings. The two gears 35 are fixedly sleeved on both sides of the outer circumference of the rotating rod 33. The first racks 31 mesh with the gears 35. The half gears 34 are fixedly sleeved on the outer circumference of the rotating rod 33. One side of each of the second racks 36 is bolted to the mold table 13. The second racks 36 mesh with the half gears 34, which facilitates uniform distribution of raw materials and prevents uneven distribution of raw materials from causing some to accumulate and thus affecting the molding of the sprue bricks.

[0039] A method for floating molding of sprue bricks, the specific steps of which are as follows:

[0040] S1: When molding the sprue brick, the raw material is placed inside the mold trough 14;

[0041] S2: After the filling is completed, the pressing mechanism 7 is activated. The pressing mechanism 7 will drive the pressing plate 25 to move downward, thereby extruding and molding the raw material through the pressing mechanism 7.

[0042] S3: When the raw material is extruded and molded by the pressing mechanism 7, the connecting plate 8 will drive the positioning plate 5 to move down synchronously. At this time, the connecting block 29 will drive the first rack 31 to move down. When the first rack 31 moves down, it will drive the gear 35 to rotate through meshing. When the gear 35 rotates, it will drive the rotating rod 33 to rotate synchronously. When the rotating rod 33 rotates, it will drive the half gear 34 to rotate. When the half gear 34 rotates, it meshes with the second rack 36. At this time, the second rack 36 will drive the mold table 13 to move up under the action of meshing. As the half gear 34 continues to rotate, the meshing between the half gear 34 and the second rack 36 will disappear. At this time, the mold table 13 will move down under the action of gravity. The vibration mechanism 9 can drive the mold table 13 to move up and down reciprocally. The vibration of the mold table 13 can compact the raw material inside the mold groove 14.

[0043] S4: When the lower pressure plate 25 moves downward, it will contact the pressure block 23. At this time, the pressure block 23 will drive the piston plate 22 to slide downward inside the slot 18 under the action of the lower pressure plate 25. The air pressure inside the slot 18 will increase as the piston plate 22 moves downward. The gas inside the slot 18 will be transported to the inside of the air bag 19 through the conduit 20 under the action of the air pressure. At this time, the air pressure inside the air bag 19 will increase as the gas is input. The air bag 19 will be fixed under the action of the air pressure. The bulging air bag 19 will push the support pad 15 upward. Through the cooperation between the lower pressure mechanism 7 and the lifting mechanism 17, the top and bottom of the raw material can be effectively squeezed.

[0044] S5: After extrusion molding, the molded sprue brick can be removed.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A floating molding die for sprue bricks, comprising a molding table (1), characterized in that, The top of the forming platform (1) is provided with a support mechanism (2), and the top of the support mechanism (2) is provided with a mold platform (13). The top of the mold platform (13) is provided with a mold groove (14). Both sides of the top of the forming platform (1) are connected to support plates (3) by bolts, and a fixing plate (6) is connected to the opposite side of the two support plates (3) near the top by bolts. The bottom of the fixing plate (6) is provided with a pressing mechanism (7), and the position of the pressing mechanism (7) is the same as the position of the mold platform (13). Correspondingly, the mold platform (13) is provided with a lifting mechanism (17), which includes a support pad (15), two limiting blocks (16), an air bladder (19), a pressure block (23), and a piston plate (22). One side of the two limiting blocks (16) is bolted to the inner wall of the mold groove (14). The support pad (15) is slidably connected to the inner wall of the mold groove (14). The air bladder (19) is located between the bottom of the support pad (15) and the bottom inner wall of the mold groove (14). The mold platform (13) is equipped with a lifting mechanism (17). 3) A slot (18) is provided on one side, and the slot (18) is slidably connected to the piston plate (22). A spring (21) is bolted between the bottom of the piston plate (22) and the slot (18). A guide hole is provided between one side of the slot (18) and the airbag (19). A guide tube (20) is provided between the two guide holes. The top of the piston plate (22) is bolted to the pressure block (23). The pressing mechanism (7) includes a connecting plate (8), a hydraulic cylinder (26), a bracket (27), and a support plate. (24) and the lower pressure plate (25), and the bottom of the hydraulic cylinder (26) is connected to the top of the connecting plate (8) by bolts, the top of the fixing plate (6) is connected to the bracket (27) by bolts, a through hole is provided between the top of the bracket (27) and the top of the fixing plate (6), the two through holes are fixedly connected to the hydraulic cylinder (26), the bottom of the connecting plate (8) is connected to the top of the support plate (24) by bolts, and the bottom of the support plate (24) is connected to the lower pressure plate (25) by bolts.

2. The floating forming mold for sprue bricks according to claim 1, characterized in that, The support mechanism (2) includes a pad (10), multiple positioning rods (11) and multiple limiting plates (12). The bottom of the pad (10) is connected to the top of the forming table (1) by bolts. The four corners of the top of the pad (10) are welded to the positioning rods (11). The limiting plates (12) are fixedly sleeved on the outer circumference of the positioning rods (11). The outer wall of the positioning rods (11) is slidably sleeved with a positioning ring. One side of the positioning ring is connected to the mold table (13) by bolts.

3. The floating forming mold for sprue bricks according to claim 2, characterized in that, One side of each of the two support plates (3) is provided with a positioning port (4), and the inner wall of each of the two positioning ports (4) is slidably connected with a positioning plate (5). The two positioning plates (5) are connected to the fixing plate (6) by bolts at the top position of one side.

4. The floating molding die for sprue bricks according to claim 3, characterized in that, Vibration mechanisms (9) are provided between the two sides of the support mechanism (2) and the mold table (13), and the vibration mechanism (9) and the pressing mechanism (7) cooperate with each other.

5. The floating forming mold for sprue bricks according to claim 4, characterized in that, The vibration mechanism (9) consists of a transmission assembly (30), a connecting block (29), and a connecting shaft (28). One side of the connecting shaft (28) is bolted to the positioning plate (5), and the other side of the connecting shaft (28) is bolted to the connecting block (29). The connecting block (29) is connected to the mold table (13) via the transmission assembly (30). The transmission assembly (30) consists of two first racks (31), two gears (35), a rotating rod (33), a half gear (34), and two second racks (36). One side of the two first racks (31) is bolted to the positioning plate (5). The connecting blocks (29) are connected by bolts. Both sides of the pad (10) are connected by bolts to the gear frame (32). The opposite sides of the gear frame (32) are connected to the rotating rod (33) by bearings. Two gears (35) are fixedly sleeved on both sides of the outer circumference of the rotating rod (33). The first rack (31) meshes with the gear (35). The half gear (34) is fixedly sleeved on the outer circumference of the rotating rod (33). One side of the second rack (36) is connected to the mold table (13) by bolts. The second rack (36) meshes with the half gear (34).

6. A method for floating molding of sprue bricks, characterized in that, According to claim 5, the specific steps of the floating molding die for sprue bricks are as follows: S1: When molding the sprue brick, the raw material is placed inside the mold trough (14); S2: After the filling is completed, start the pressing mechanism (7). The pressing mechanism (7) will drive the pressing plate (25) to move downward, thereby extruding and molding the raw material through the pressing mechanism (7); S3: When the raw material is extruded and molded by the pressing mechanism (7), the connecting plate (8) will drive the positioning plate (5) to move down synchronously. At this time, the connecting block (29) will drive the first rack (31) to move down. When the first rack (31) moves down, it will drive the gear (35) to rotate through meshing. When the gear (35) rotates, it will drive the rotating rod (33) to rotate synchronously. When the rotating rod (33) rotates, it will drive the half gear (34) to rotate. When the half gear (34) rotates, When meshing with the second rack (36), the second rack (36) will drive the mold table (13) to move upward under the action of meshing. As the half gear (34) continues to rotate, the meshing between the half gear (34) and the second rack (36) will disappear. At this time, the mold table (13) will move downward under the action of gravity. The vibration mechanism (9) can drive the mold table (13) to move up and down repeatedly. The vibration of the mold table (13) can compact the raw material inside the mold groove (14). S4: When the lower pressure plate (25) moves downward, it will contact the pressure block (23). At this time, the pressure block (23) will drive the piston plate (22) to slide downward inside the slot (18) under the action of the lower pressure plate (25). The air pressure inside the slot (18) will increase as the piston plate (22) moves downward. The gas inside the slot (18) will be transported to the inside of the air bag (19) through the conduit (20) under the action of the air pressure. At this time, the air pressure inside the air bag (19) will increase as the gas is input. The air bag (19) will be fixed under the action of the air pressure. The bulging air bag (19) will push the support pad (15) upward. Through the cooperation between the lower pressure mechanism (7) and the lifting mechanism (17), the top and bottom of the raw material can be effectively squeezed. S5: After extrusion molding, the molded sprue brick can be removed.

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