A grid continuous casting production line

Abstract

The present invention discloses a grid continuous casting production line, which includes a frame. A moving mold is arranged inside the frame, and a demoulding oil spraying assembly is arranged inside the frame above the moving mold. A lead conveying pipeline assembly is arranged on one side of the frame, and a fixed mold matched with the moving mold is arranged on the lead conveying pipeline assembly. A pressure booster is arranged on the frame outside the fixed mold. A discharging roller assembly is arranged below the inner side of the frame, and a cooling tank assembly is arranged inside the frame at a position below the discharging roller assembly. An oil-water cooler is arranged on one side of the frame. The present invention effectively solves the problems of wear between the moving mold and the fixed mold and the problems brought to the cast grid by the demoulding agent, enables the grid to smoothly fall off from the casting cavity on the surface of the moving mold, effectively reduces the wear between the moving mold and the fixed mold, ensures the qualification of the cast grid, avoids the phenomena of uneven grid quality, many burrs and rib defects, and correspondingly improves the production efficiency and the service life of the mold.

Description

Technical Field

[0001] The present invention relates to the technical field of battery processing equipment, and particularly relates to a grid continuous casting production line. Background Art

[0002] The grid is a main component of lead-acid batteries, and there are three grid production methods: casting, punching, and expanding. The traditional casting grid process mainly uses gravity casting, and the main equipment is a casting machine and corresponding grid molds. Casting is to pour the heated and melted lead alloy into the grid mold under the action of gravity, then cool and form, and then perform subsequent processing. The casting machine requires experienced operators to operate, and the surface of the casting mold is treated according to the casting result of the grid, and a certain thickness of "release agent" is sprayed to obtain qualified products. For the grid formed by gravity casting, its thickness cannot be too thin, usually only reaching more than 1.0 mm, and thin grids cannot be produced. There are certain limitations in the grid structure design, and the utilization rate of its raw materials is relatively low. The ratio of the active material to the grid is average, the automation level is low, the labor intensity is high, the production efficiency is low, the production cost is high, the pollution degree in the production process is high, the equipment energy consumption is high, the material consumption is large, it harms the operator's body, and the quality also depends on the operator's technology, so the quality cannot be stable, and the self-discharge and water loss rates are large, the service life is short, and the corrosion resistance is poor.

[0003] Although the grid continuous casting equipment introduced in the current market has improved its production efficiency, the existing objective problems are as follows: (1) For the lubrication and demoulding between the rotating mold and the fixed mold of the grid mold, the oil brush oil supply form is adopted. First, the consumption of the release agent is relatively large. Second, a certain thickness of oil layer is formed on the surface of the rotating mold, resulting in uneven forming thickness of the grid, increased burrs, and the weight of the grid cannot be guaranteed. Further, it may cause too much oil, and the grid cannot be formed; too little oil will cause the grid ribs to adhere to the casting cavity, and in severe cases, maintenance may be forced, affecting the production efficiency. (2) Due to the certain contact pressure between the rotating mold and the fixed mold at a certain casting temperature, its thermal deformation and wear are aggravated, seriously affecting the service life of the mold and causing quality problems of the cast grid. (3) During the casting process, the melted lead alloy is introduced from one end of the fixed mold through the lead conveying pipeline and exported from the other end, inevitably causing attenuation of both temperature and lead supply pressure. In severe cases, it can affect the demoulding and deformation of the cast grid. Therefore, the present invention proposes a grid continuous casting production line to solve the problems existing in the prior art. Summary of the Invention

[0004] In view of the above problems, the present invention provides a grid continuous casting production line, which effectively solves the problems of wear between the moving die and the fixed die and the problems brought by the release agent to the cast grid, enables the grid to smoothly fall off from the casting cavity on the surface of the moving die, effectively reduces the wear between the moving die and the fixed die, ensures the qualification of the cast grid, avoids the phenomena of uneven grid quality, many burrs and rib defects, and correspondingly improves the production efficiency and the service life of the die.

[0005] To solve the above problems, the present invention provides a grid continuous casting production line, including a frame. A moving die is arranged inside the frame, and a release oil spraying assembly is arranged inside the frame above the moving die. A lead conveying pipeline assembly is arranged on one side of the frame, and a fixed die matched with the moving die is arranged on the lead conveying pipeline assembly. A pressure applicator is arranged on the frame outside the fixed die. A lead-out roller assembly is arranged below the inner side of the frame, and a cooling tank assembly is arranged inside the frame at the position below the lead-out roller assembly. An oil-water cooler is arranged on one side of the frame. The moving die is connected to the oil-water cooler. A traction assembly is arranged at the outlet of the cooling tank assembly, and a cleaning machine is arranged at the output end of the traction assembly. A winding machine is arranged at the outlet of the cleaning machine.

[0006] A further improvement lies in that: the release oil spraying assembly includes a bracket and a fixing plate. The bracket is provided with the fixing plate, and a tubing is arranged on the fixing plate. A flow divider is arranged on the tubing. An installation seat is arranged at the bottom of the fixing plate. The bottom of the tubing is connected to the installation seat through a joint, and an oil nozzle is communicated with the bottom of the installation seat. Adjusting seats are arranged at both ends of the bracket.

[0007] A further improvement lies in that: the lead conveying pipeline assembly includes a lead inlet protective cover and a lead inlet pipe. The lead inlet pipe is arranged inside the lead inlet protective cover. The fixed die is communicated with the lead inlet pipe. One end of the fixed die is communicated with a lead return pipe, and a lead return protective cover is arranged outside the lead return pipe. Heating pipes are arranged on both the lead inlet protective cover and the lead return protective cover.

[0008] A further improvement lies in that: the lead-out roller assembly includes fixed sliding seats and support plates. There are two groups of fixed sliding seats, and a support plate is arranged at one end inside each fixed sliding seat. A guide roller is rotatably installed inside the two groups of support plates, and water receiving heads are arranged at both ends of the guide roller. The water receiving heads are connected to the oil-water cooler. A spray pipe is installed inside the two groups of support plates. Adjusting rods are arranged at the other ends inside the two groups of fixed sliding seats, and a pressure roller is rotatably installed inside the two groups of adjusting rods.

[0009] A further improvement lies in that: the cooling tank assembly includes a fixing frame, there are two groups of the fixing frames, guide rails are installed on the inner sides of the fixing frames through rollers, trays are arranged on both groups of the guide rails, a water tank is installed inside both groups of the trays, and a water return hole is arranged on the water tank, the water return hole is connected to the oil-water cooler, a cross brace is connected below the inner sides of both groups of the guide rails, and a cylinder is arranged below the cross brace.

[0010] A further improvement lies in that: the oil-water cooler includes an oil tank and a water tank, an oil pump is communicated with the oil tank, a water pump and a cooler are arranged on the water tank, and an oil-water heat exchanger is communicated between the oil pump and the water pump.

[0011] A further improvement lies in that: the traction assembly includes a traction frame and a chain, the chain is evenly arranged on the traction frame, and a limiting plate is arranged inside the traction frame.

[0012] A further improvement lies in that: the cleaning machine includes a cleaning frame, a conveying roller is arranged at one end inside the cleaning frame, nozzles are installed inside the cleaning frame above the conveying roller, a rinsing tank is arranged at the middle position inside the cleaning frame, an air drying net is arranged at the other end inside the cleaning frame, a pressing plate is arranged on the air drying net, and a blower is installed inside the cleaning frame above the air drying net.

[0013] A further improvement lies in that: the winding machine includes a bottom frame and a lifting rod, a lifting rod is arranged at one end of the bottom frame, an intermediate roller is arranged on the lifting rod, a connecting frame is arranged at the other end of the bottom frame, a height sensor is installed on the connecting frame, a base is arranged at one end of the bottom frame, and a winding drum is installed on the base.

[0014] A further improvement lies in that: ribs are arranged on the fixed mold, nitrogen holes are arranged on the ribs, and a strip cavity is arranged on the fixed mold below the ribs.

[0015] The beneficial effects of the present invention are as follows: the present invention effectively solves the problems of wear between its moving mold and fixed mold and the problems brought by the release agent to the cast grid, enables the grid to smoothly fall off from the casting cavity on the surface of the moving mold, effectively reduces the wear between the moving mold and the fixed mold, ensures the qualification of the cast grid, avoids the phenomena of uneven grid quality, many burrs, and rib defects, correspondingly improves the production efficiency and the service life of the mold. At the same time, through oil-water cooling, its working conditions are effectively guaranteed. In addition, a cleaning machine and a winding machine are provided, which can clean and wind and store the processed grid, facilitating assembly line operation and higher efficiency. Brief Description of the Drawings

[0016] Figure 1 It is the front view of the present invention.

[0017] Figure 2 It is a schematic diagram of the release oil spraying assembly of the present invention.

[0018] Figure 3 Schematic diagram of the lead conveying pipeline assembly of the present invention.

[0019] Figure 4 Schematic diagram of the lead-out roller assembly of the present invention.

[0020] Figure 5 Schematic diagram of the cooling tank assembly of the present invention.

[0021] Figure 6 Schematic diagram of the oil-water cooler of the present invention.

[0022] Figure 7 Schematic diagram of the traction assembly of the present invention.

[0023] Figure 8 Schematic diagram of the cleaning machine of the present invention.

[0024] Figure 9 Schematic diagram of the winding machine of the present invention.

[0025] Figure 10 Schematic diagram of the fixed mold of the present invention.

[0026] Among them: 1 - frame, 2 - moving mold, 3 - demolding oil spraying assembly, 4 - lead conveying pipeline assembly, 5 - fixed mold, 6 - lead-out roller assembly, 7 - cooling tank assembly, 8 - oil-water cooler, 9 - traction assembly, 10 - cleaning machine, 11 - winding machine, 12 - bracket, 13 - fixing plate, 14 - oil pipe, 15 - diverter, 16 - mounting seat, 17 - oil nozzle, 18 - adjusting seat, 19 - lead-in protective cover, 20 - lead-in pipe, 21 - lead-back pipe, 22 - lead-back protective cover, 23 - heating pipe, 24 - fixed sliding seat, 25 - support plate, 26 - guide roller, 27 - water connection head, 28 - spray pipe, 29 - adjusting rod, 30 - pressure roller, 31 - fixing frame, 32 - roller, 33 - guide rail, 34 - support plate, 35 - water tank, 36 - return water hole, 37 - cross brace, 38 - cylinder, 39 - fuel tank, 40 - water tank, 41 - oil pump, 42 - water pump, 43 - cooler, 44 - oil-water heat exchanger, 45 - traction frame, 46 - chain, 47 - limit plate, 48 - cleaning frame, 49 - conveying roller, 50 - nozzle, 51 - rinsing tank, 52 - air drying net, 53 - pressing plate, 54 - fan, 55 - chassis, 56 - lifting rod, 57 - intermediate roller, 58 - connecting frame, 59 - height sensor, 60 - base, 61 - winding drum, 62 - rib, 63 - nitrogen hole, 64 - strip cavity. Specific embodiments

[0027] In order to deepen the understanding of the present invention, the following will further describe the present invention in conjunction with embodiments. These embodiments are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0028] According to Figure 1 , 2 , 3, 4, 5, 6, 7, 8, 9, 10, this embodiment provides a grid continuous casting production line, including a frame 1. A moving die 2 is arranged inside the frame 1, and a demoulding oil spraying assembly 3 is arranged inside the frame 1 above the moving die 2. A lead conveying pipeline assembly 4 is arranged on one side of the frame 1, and a fixed die 5 matched with the moving die 2 is arranged on the lead conveying pipeline assembly 4. A pressure booster is arranged on the frame 1 outside the fixed die 5. A lead-out roller assembly 6 is arranged below the inner side of the frame 1, and a cooling tank assembly 7 is arranged inside the frame 1 at a position below the lead-out roller assembly 6. An oil-water cooler 8 is arranged on one side of the frame 1. The moving die 2 is connected to the oil-water cooler 8. A traction assembly 9 is arranged at the outlet of the cooling tank assembly 7, and a cleaning machine 10 is arranged at the output end of the traction assembly 9. A coiling machine 11 is arranged at the outlet of the cleaning machine 10. Molten lead is conveyed into the fixed die 5 through the lead conveying pipeline assembly 4, sprayed onto the casting cavity surface of the moving die 2 under a certain pressure, forms a qualified grid through the rotation of the moving die 2 and the cooling area of the fixed die 5, is led out by the lead-out roller assembly 6, hardened by the cooling tank assembly 7, then enters the cleaning machine 10 through the traction assembly 9, and is coiled by the coiling machine 11 after being washed and dried.

[0029] The demoulding oil spraying assembly 3 includes a bracket 12 and a fixing plate 13. The fixing plate 13 is installed on the bracket 12, and a fuel pipe 14 is arranged on the fixing plate 13. A flow divider 15 is arranged on the fuel pipe 14. An installation seat 16 is arranged at the bottom of the fixing plate 13. The bottom of the fuel pipe 14 is connected to the installation seat 16 through a joint, and an oil nozzle 17 is communicated with the bottom of the installation seat 16. Adjusting seats 18 are arranged at both ends of the bracket 12. The flow divider 15 supplies oil to the oil nozzle 17 through the fuel pipe 14, and the demoulding agent can be atomized by compressed air and sprayed onto the outer circumferential surface of the moving die 2 through the nozzle to form a uniform oil film, reducing the burrs of the cast grid.

[0030] The lead conveying pipeline assembly 4 includes a lead inlet protective cover 19 and a lead inlet pipe 20. The lead inlet pipe 20 is arranged inside the lead inlet protective cover 19. The fixed die 5 is communicated with the lead inlet pipe 20. One end of the fixed die 5 is communicated with a lead return pipe 21, and a lead return protective cover 22 is arranged outside the lead return pipe 21. Heating pipes 23 are arranged on both the lead inlet protective cover 19 and the lead return protective cover 22. Adopting the design concept of being rollable in the front and back horizontal directions and slidable in the left and right horizontal directions and the soft connection mode at the end of the upper lead conveying pipeline, the resistance in the process of the cooperation between the moving die 2 and the fixed die 5 is avoided, the die wear during the casting of the battery grid is reduced, and the casting qualification rate of the grid is improved.

[0031] The export roller assembly 6 includes a fixed slide 24 and a support plate 25. There are two sets of the fixed slides 24, and a support plate 25 is provided at one end inside the fixed slide 24. A material guiding roller 26 is rotatably installed in the two support plates 25, and water receiving heads 27 are provided at both ends of the material guiding roller 26 for receiving water. The water receiving heads 27 are connected to the oil-water cooler 8. A spray pipe 28 is installed in the two support plates 25. Adjusting rods 29 are provided at the other ends inside the two fixed slides 24. A pressure roller 30 is rotatably installed inside the two adjusting rods 29. The built-in water circulation and external spraying double-level cooling method is adopted to reduce the influence of high-temperature molten lead on the forming and deformation of the casting grid due to heat conduction. By adjusting the distance between the material guiding roller 26 and the moving die 2 and the magnitude of the tension, the length of the casting grid can be finely adjusted, and the deformation of the casting grid can be finely adjusted by adjusting the distance between the upper and lower parts and the moving die 2.

[0032] The cooling tank assembly 7 includes a fixed frame 31. There are two sets of the fixed frames 31. Guide rails 33 are installed inside the fixed frames 31 through rollers 32. Pallets 34 are provided on the two guide rails 33. Water tanks 35 are installed inside the two pallets 34, and water return holes 36 are provided on the water tanks 35. The water return holes 36 are connected to the oil-water cooler 8. Cross braces 37 are connected below the two guide rails 33, and a cylinder 38 is provided below the cross braces 37. During cooling, the grid enters the water tank 35, and the spray pipe 28 sprays water into the water tank 35 to harden the grid. The rollers 32 move up and down reciprocally along the length direction of the fixed frame 31 through the cylinder 38.

[0033] The oil-water cooler 8 includes an oil tank 39 and a water tank 40. An oil pump 41 is connected to the oil tank 39. A water pump 42 and a cooler 43 are provided on the water tank 40. An oil-water heat exchanger 44 is connected between the oil pump 41 and the water pump 42. The cooling heat-conducting oil is introduced from the oil tank 39 into the oil-water heat exchanger 44 for cooling and then exported, enters the inlet end of the inner cavity of the moving die 2, and is exported from the outlet end and returned to the oil tank 39. Through the corresponding temperature control systems of the oil-water cooler 8 and the moving die 2, its working conditions are guaranteed, effectively avoiding the influence of large temperature fluctuations during the molten lead casting process on the mold and the forming of the casting grid; the cooling water is introduced from the water tank 40 of the oil-water cooler 8 into the water tank 35 through the spray pipe 28 and is returned to the water tank 40 through the water return hole 36 after being cooled to the required working conditions.

[0034] The traction assembly 9 includes a traction frame 45 and a chain 46. Chains 46 are evenly provided on the traction frame 45 for facilitating the traction and transmission of the grid. A limiting plate 47 is provided inside the traction frame 45.

[0035] The cleaning machine 10 includes a cleaning rack 48. At one end inside the cleaning rack 48, there is a conveying roller 49 for conveying the grid, and inside the cleaning rack 48 above the conveying roller 49, a nozzle 50 is installed for spray-cleaning the grid. At the middle position inside the inner side of the cleaning rack 48, there is a rinsing tank 51 for rinsing the grid, and at the other end inside the inner side of the cleaning rack 48, there is an air-drying net 52, and a pressing plate 53 is arranged on the air-drying net 52. Above the air-drying net 52, a blower 54 is installed inside the cleaning rack 48 to facilitate drying the water stains.

[0036] The coiling machine 11 includes a chassis 55 and a lifting rod 56. At one end of the chassis 55, there is a lifting rod 56, and an intermediate roller 57 is arranged on the lifting rod 56 to play a guiding role for the grid during material collection. At the other end of the chassis 55, there is a connecting frame 58, and a height sensor 59 is installed on the connecting frame 58 to facilitate sensing the height of the grid to adjust the height of the intermediate roller 57 by the lifting rod 56. At one end of the chassis 55, there is a base 60, and a coiling drum 61 is installed on the base 60 for material collection.

[0037] On the fixed mold 5, there are rib strips 62, which are matched with the radially cast cavities on the circumferential outer surface of the moving mold 2, effectively avoiding the secondary casting of the molten lead on the grid during the casting process of the grid, which affects the toughness and strength of the grid. And on the rib strips 62, there are nitrogen holes 63. Below the rib strips 62 on the fixed mold 5, there is a strip cavity 64 for the recovery and outflow of the molten lead liquid.

[0038] This grid continuous casting production line effectively solves the problems of wear between the moving mold 2 and the fixed mold 5 and the problems brought by the release agent to the cast grid, enables the grid to smoothly fall off from the cast cavity on the surface of the moving mold 2, effectively reduces the wear between the moving mold 2 and the fixed mold 5, ensures the qualification of the cast grid, avoids the phenomena of uneven grid quality, many burrs, and rib defects, correspondingly improves the production efficiency and the service life of the mold. At the same time, through oil-water cooling, its working conditions are effectively guaranteed. In addition, there are a cleaning machine 10 and a coiling machine 11, which can clean and coil and store the processed grid, facilitating the assembly line operation and having higher efficiency.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A grid continuous casting production line, comprising a frame (1), characterized in that: A moving mold (2) is provided inside the frame (1), and a demolding oil spraying assembly (3) is provided inside the frame (1) above the moving mold (2). A lead conveying pipeline assembly (4) is provided on one side of the frame (1), and a fixed mold (5) matched with the moving mold (2) is provided on the lead conveying pipeline assembly (4). A pressure booster is provided on the frame (1) outside the fixed mold (5). A lead-out roller assembly (6) is provided below the inner side of the frame (1), and a cooling tank assembly (7) is provided inside the frame (1) at a position below the lead-out roller assembly (6). An oil-water cooler (8) is provided on one side of the frame (1). The moving mold (2) is connected to the oil-water cooler (8). A traction assembly (9) is provided at the outlet of the cooling tank assembly (7), and a cleaning machine (10) is provided at the output end of the traction assembly (9). A winding machine (11) is provided at the outlet of the cleaning machine (10). The demolding oil spraying assembly (3) includes a bracket (12) and a fixing plate (13). The fixing plate (13) is installed on the bracket (12), and an oil pipe (14) is provided on the fixing plate (13). A flow divider (15) is provided on the oil pipe (14). An installation seat (16) is provided at the bottom of the fixing plate (13). The bottom of the oil pipe (14) is connected to the installation seat (16) through a joint, and an oil nozzle (17) is communicated with the bottom of the installation seat (16). Adjusting seats (18) are provided at both ends of the bracket (12). The flow divider (15) supplies oil to the oil nozzle (17) through the oil pipe (14). The demolding agent can be atomized by compressed air and sprayed onto the outer circumferential surface of the moving mold (2) through a nozzle to form a uniform oil film, reducing the burrs of the cast grid plate. The lead conveying pipeline assembly (4) includes a lead-in protective cover (19) and a lead-in pipe (20). The lead-in pipe (20) is provided inside the lead-in protective cover (19). The fixed mold (5) is communicated with the lead-in pipe (20). One end of the fixed mold (5) is communicated with a lead-back pipe (21), and a lead-back protective cover (22) is provided outside the lead-back pipe (21). Heating pipes (23) are provided on both the lead-in protective cover (19) and the lead-back protective cover (22). The lead-out roller assembly (6) includes fixed sliding seats (24) and support plates (25). There are two groups of fixed sliding seats (24), and a support plate (25) is provided at one end inside the fixed sliding seats (24). A material guiding roller (26) is rotatably installed inside the two groups of support plates (25), and water connection heads (27) are provided at both ends of the material guiding roller (26). The water connection heads (27) are connected to the oil-water cooler (8). A spray pipe (28) is installed inside the two groups of support plates (25). Adjusting rods (29) are provided at the other ends inside the two groups of fixed sliding seats (24), and a pressure roller (30) is rotatably installed inside the two groups of adjusting rods (29). The cooling tank assembly (7) includes a fixing frame (31). There are two groups of the fixing frames (31). Guide rails (33) are installed on the inner sides of the fixing frames (31) through rollers (32). Pallets (34) are arranged on both groups of the guide rails (33). A water tank (35) is installed inside both groups of the pallets (34). A water return hole (36) is provided on the water tank (35). The water return hole (36) is connected to the oil-water cooler (8). A cross brace (37) is connected to the lower part inside both groups of the guide rails (33). A cylinder (38) is provided below the cross brace (37). The oil-water cooler (8) includes an oil tank (39) and a water tank (40). An oil pump (41) is communicated with the oil tank (39). A water pump (42) and a cooler (43) are provided on the water tank (40). An oil-water heat exchanger (44) is communicated between the oil pump (41) and the water pump (42). The cooling heat-conducting oil is introduced from the oil tank (39) into the oil-water heat exchanger (44) for cooling and then exported, enters the inlet end of the inner cavity of the moving mold (2), is exported from the outlet end and returns to the oil tank (39), and is adjusted through the corresponding temperature control systems of the oil-water cooler (8) and the moving mold (2). The cooling water is introduced from the water tank (40) of the oil-water cooler (8) into the water tank (35) through the spray pipe (28), and returns to the water tank (40) through the water return hole (36) after being cooled to the conditions required by the working conditions.

2. The grid continuous casting production line according to claim 1, characterized in that: The traction assembly (9) includes a traction frame (45) and a chain (46). Chains (46) are evenly arranged on the traction frame (45). A limiting plate (47) is provided inside the traction frame (45).

3. The grid continuous casting production line according to claim 1, characterized in that: The cleaning machine (10) includes a cleaning frame (48). A conveying roller (49) is provided at one end inside the cleaning frame (48). Nozzles (50) are installed inside the cleaning frame (48) above the conveying roller (49). A rinsing tank (51) is provided at the middle position inside the cleaning frame (48). An air drying net (52) is provided at the other end inside the cleaning frame (48). A pressing plate (53) is provided on the air drying net (52). A blower (54) is installed inside the cleaning frame (48) above the air drying net (52).

4. A grid continuous casting production line according to claim 1, characterized in that: The winding machine (11) includes a bottom frame (55) and a lifting rod (56). A lifting rod (56) is provided at one end of the bottom frame (55). An intermediate roller (57) is provided on the lifting rod (56). A connecting frame (58) is provided at the other end of the bottom frame (55). A height sensor (59) is installed on the connecting frame (58). A base (60) is provided at one end of the bottom frame (55). A winding drum (61) is installed on the base (60).

5. A grid continuous casting production line according to claim 1, characterized in that: Ribs (62) are provided on the fixed mold (5). Nitrogen holes (63) are provided on the ribs (62). A strip cavity (64) is provided on the fixed mold (5) below the ribs (62).

Images