A wear-resistant steel ball forming production line and forming production process

Abstract

The present invention discloses a wear-resistant steel ball forming production line and forming production process, which belongs to the technical field of steel ball forming production lines, including a round steel conveying component, a round steel heating component is provided on one side of the round steel conveying component, the round steel heating component is provided with a roll forging mill component, the discharge port of the roll forging mill component is connected with a slope, the slope passes through the cooling component, the tail end of the slope is connected to the lifting component, and the lifting component is connected to the screening component. The wear-resistant steel ball forming production line and forming production process proposed by the present invention has no gaps between the high-temperature flames ejected when the heating gun rotates, so that the round steel can be heated continuously, avoiding uneven hot spots of the round steel caused by heating in a single direction, which would damage the parts used for rolling of the upper roller and the lower roller in the subsequent roll forging process. The cooling power is achieved by utilizing the power of the steel ball's descent, thereby reducing costs.

Description

Technical Field

[0001] The present invention relates to the technical field of steel ball forming production lines, in particular to a wear-resistant steel ball forming production line and a forming production process. Background Art

[0002] The world uses 26 million tons of wear-resistant steel balls for ball mills annually, 80% of which are cast. Cast balls are energy-intensive, inefficient, and lack toughness. They cannot produce balls larger than 120mm to 200mm in diameter. Modern natural mining ball mills currently have diameters exceeding 6.8 to 13 meters.

[0003] CN201810310091.7 discloses a continuous rolling production process for wear-resistant steel balls and steel bars, in which the intermediate billet bars are heated and evenly heated by an induction heating device to ensure the uniform temperature of the intermediate billet bars entering the ball rolling machine, and then the ball rolling machine is used to roll and produce wear-resistant steel balls or steel bar products that meet the specified size. The induction heating device plays a role in matching and connecting the temperature between the continuous casting machine and the ball rolling machine. Through the combination of the intermediate billet bars and the ball rolling machine, the bar rolling and steel ball rolling are integrated and continuously produced.

[0004] The following problems exist:

[0005] During the heating process, the induction heating device is used for heating and equalizing. However, how the induction heating device senses and equalizes the heat is announced. At the same time, single flame heating causes the temperature on one side to be too high and the temperature difference on the other side to be large, resulting in the lower temperature rolling damaging the equipment in the subsequent rolling process. Summary of the Invention

[0006] The object of the present invention is to provide a wear-resistant steel ball forming production line and forming production process to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wear-resistant steel ball forming production line, comprising a round steel conveying assembly, a round steel heating assembly is provided on one side of the round steel conveying assembly, the round steel heating assembly is provided with a roll forging mill assembly, the discharge port of the roll forging mill assembly is connected with a slope, the slope passes through the cooling assembly, the tail end of the slope is connected to the lifting assembly, and the lifting assembly is connected to the screening assembly.

[0008] Furthermore, the round steel conveying assembly includes a first side plate, a second side plate, an upper pressure wheel, a lower pressure wheel, a guide wheel and a base. The first side plate and the second side plate are fixed side by side on the base. A conveying channel is formed between the first side plate and the second side plate. The upper pressure wheel and the lower pressure wheel are arranged in two rows in the conveying channel. The guide wheel is installed on the first side plate and the second side plate at the front end of the upper pressure wheel and the lower pressure wheel. The guide wheel guides the round steel to be inserted between the upper pressure wheel and the lower pressure wheel.

[0009] Furthermore, the round steel heating assembly includes a heating shell, a limiting ring, a heating ring seat, a heating gun and an air pipe. The limiting ring is fixed in the heating shell, and the inner circumference of the limiting ring is provided with a ring groove.

[0010] The outer circumference of the heating ring seat is provided with a circle of clamping ring, which is clamped in the ring groove. The heating gun is provided with no less than three fixed on the inner circumference of the heating ring seat, and the air pipe and the limit ring are fixed and connected with the ring groove. The pipe connected to the heating gun passes through the heating ring seat and is connected with the ring groove. The heating ring seat is rotated around the limit ring by external power. During the rotation of the heating ring seat, the combustible gas in the air pipe flows into the heating gun through the ring groove, and the heating gun rotates around the circumference of the round steel to heat.

[0011] Furthermore, the roll forging mill assembly includes a roll forging shell, a roll forging power device and a control button. The control button is installed on the roll forging shell. The control button is connected to the roll forging power device through a wire. The roll forging power device rolls round steel.

[0012] Furthermore, the roll forging power equipment includes an upper roll, a lower roll, a power shell, a motor and a gear. The outer wall of the power shell is connected to the motor, the shaft of the motor is inserted into the power shell and connected to the gear, one end of the upper roll and the lower roll is inserted into the power shell and meshed with the upper and lower sides of the gear, the other end of the upper roll and the lower roll is inserted into the bearing of the roll forging shell, and the upper roll and the lower roll roll round steel into steel balls.

[0013] Furthermore, the cooling assembly includes a transmission shaft, a rotating blade, a worm, a worm gear, a spray head, a crankshaft and a spray shell, a ramp passes through the spray shell, one end of the transmission shaft is connected to the worm, the worm is connected to the bearing on the top of the spray shell, the bottom end of the transmission shaft is fixed to the rotating blade at equal intervals, the bottom surface of the rotating blade is in contact with the ramp, and a guide ramp is fixed on the ramp above the rotating blade;

[0014] The worm is meshed with the worm wheel, the shaft of the worm wheel is fixed to the crankshaft, a movably connected pressure rod is sleeved on the crankshaft, the pressure rod is connected to the piston in the spray head, and the spray head is fixed on the spray shell.

[0015] Furthermore, the lifting assembly includes a lifting ladder, a mesh conveyor belt and baffles. The mesh conveyor belt is installed in the lifting ladder, and the baffles are distributed on the mesh conveyor belt at equal intervals.

[0016] Furthermore, the screening assembly includes a screening box, a screening plate and screening holes, the screening plate is fixed in the screening box, the screening holes are distributed on the screening plate, and the top opening of the screening box is connected to the top of the mesh conveyor belt.

[0017] Another technical solution proposed by the present invention includes a forming production process of a wear-resistant steel ball forming production line, comprising the following steps:

[0018] S1: The round steel is inserted between the upper pressing wheel and the lower pressing wheel. Under the action of external power, the upper pressing wheel and the lower pressing wheel send the round steel into the heating ring seat of the heating shell;

[0019] S2: When the round steel is not inserted into the heating ring seat, the combustible gas in the gas pipe is passed into the heating gun, and the high-temperature flame ejected from the heating gun rotates. As the round steel is slowly inserted, the high-temperature flame rotates and heats the round steel;

[0020] S3: The round steel heated to above 900℃ is fed into the roll forging shell. The upper and lower rolls are driven by the motor to rotate in opposite directions. The round steel is rolled into steel balls and falls on the slope.

[0021] S4: The round steel rolls along the slope to drive the rotating blades and the transmission shaft to rotate, which drives the crankshaft to continuously reciprocate and drive the pressure rod to move up and down. The negative pressure generated by the pressure rod draws liquid into the spray head, and the sprayed liquid cools the steel ball;

[0022] S5: The mesh conveyor belt and baffle drive the steel balls to rise and fall into the screening box. The smaller ones are screened and discharged from the screening holes, and the qualified ones are collected.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention proposes a wear-resistant steel ball forming production line and forming production process. The outer circumference of the heating ring seat is provided with a circle of clamping rings, which are also located in the middle of the outer circumference of the heating ring seat. The clamping ring is clamped in the ring groove and can rotate around the ring groove. The heating gun is provided with no less than three fixed on the inner circumference of the heating ring seat. The purpose of setting multiple groups of heating guns is to ensure that there is no gap between the high-temperature flames ejected by the heating guns during the rotation of the clamping ring, so that the round steel can be heated continuously, avoiding uneven hot spots of the round steel due to heating in a single direction, which will damage the parts used for rolling of the upper and lower rollers during the subsequent roll forging process.

[0025] 2. The present invention proposes a wear-resistant steel ball forming production line and forming production process. Upper rollers and lower rollers roll round steel into steel balls. The steel falls on a slope and rolls down the slope due to gravity. The steel balls on the slope are guided into the spray shell by the guide blocks, pushing the rotating blades to rotate in one direction; the worm and the worm gear engage, and the rotation of the worm and the worm gear drives the pressure rod to move back and forth continuously, squeezing the piston of the spray head, pumping out water and spraying it on the steel balls for surface cooling. The power is achieved by utilizing the power of the falling steel balls, reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an overall three-dimensional diagram of the present invention;

[0027] Figure 2 It is a side view of the round steel heating assembly of the present invention;

[0028] Figure 3 A top view of the heating ring seat and the limiting ring of the present invention;

[0029] Figure 4 It is a partial structural diagram of the roll forging mill assembly of the present invention;

[0030] Figure 5 This is a structural diagram of the cooling component of the present invention.

[0031] In the figure: 1. Round steel conveying assembly; 11. First side plate; 12. Second side plate; 13. Upper pressing wheel; 14. Lower pressing wheel; 15. Guide wheel; 16. Base; 2. Round steel heating assembly; 21. Heating shell; 22. Limiting ring; 23. Heating ring seat; 231. Snap ring; 24. Heating gun; 25. Air pipe; 3. Roll forging mill assembly; 31. Roll forging shell; 32. Roll forging power equipment; 321. Upper roller; 322. Lower roller; 323. Power Shell; 324, motor; 325, gear; 33, control button; 4, ramp; 41, guide ramp; 5, cooling component; 51, transmission shaft; 52, rotating blade; 53, worm; 54, worm gear; 55, spray head; 56, crankshaft; 57, spray shell; 58, pressure rod; 6, lifting component; 61, lifting ladder; 62, mesh conveyor belt; 63, baffle; 7, screening component; 71, screening box; 72, screening plate; 73, screening hole. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1 A wear-resistant steel ball forming production line includes a round steel conveying component 1, a round steel heating component 2 is provided on one side of the round steel conveying component 1, the round steel heating component 2 is provided with a roll forging mill component 3, the discharge port of the roll forging mill component 3 is connected with a slope 4, the slope 4 passes through the cooling component 5, the tail end of the slope 4 is connected to the lifting component 6, and the lifting component 6 is connected to the screening component 7.

[0034] The round steel conveying assembly 1 includes a first side plate 11, a second side plate 12, an upper pressing wheel 13, a lower pressing wheel 14, a guide wheel 15 and a base 16. The first side plate 11 and the second side plate 12 are fixed side by side on the base 16. A conveying channel is formed between the first side plate 11 and the second side plate 12. The conveying channel is long. The upper pressing wheel 13 and the lower pressing wheel 14 are arranged in two rows, upper and lower, in the conveying channel. Multiple upper pressing wheels 13 and lower pressing wheels 14 are arranged in each row. The guide wheel 15 is installed on the first side plate 11 and the second side plate 12 at the front end of the upper pressing wheel 13 and the lower pressing wheel 14. The guide wheel 15 guides the round steel to be inserted between the upper pressing wheel 13 and the lower pressing wheel 14. The upper pressing wheel 13 and the lower pressing wheel 14 convey the round steel to reduce the friction of the round steel conveying and ensure that the round steel is in a straight state when it is conveyed to the heating shell 21.

[0035] See also Figure 2-3 The round steel heating assembly 2 includes a heating shell 21, a limiting ring 22, a heating ring seat 23, a heating gun 24 and an air pipe 25. The limiting ring 22 is fixed in the heating shell 21. The position of the limiting ring 22 is fixed. The inner circumference of the limiting ring 22 is provided with a ring groove, and the ring groove is provided in the middle of the limiting ring 22.

[0036] The outer circumference of the heating ring seat 23 is provided with a circle of clamping ring 231, and the clamping ring 231 is also located in the middle of the outer circumference of the heating ring seat 23. The clamping ring 231 is clamped in the ring groove and can rotate around the ring groove. The heating gun 24 is provided with no less than three fixed on the inner circumference of the heating ring seat 23. The purpose of setting multiple groups of heating guns 24 is to allow the clamping ring 231 to rotate during the rotation process. There is no gap between the high-temperature flames ejected when the heating gun 24 rotates, so that the round steel can be heated continuously to avoid uneven hot spots of the round steel caused by heating in a single direction. In the subsequent roll forging process, the parts used for rolling of the upper roller 321 and the lower roller 322 are damaged, and the air pipe 25 and the limit ring 22 are fixed and connected to the ring groove. The heating gun 24 The connected pipe passes through the heating ring seat 23 and is connected to the ring groove. The heating ring seat 23 rotates around the limit ring 22 by external power. During the rotation of the heating ring seat 23, the combustible gas in the air pipe 25 flows into the heating gun 24 through the ring groove. The heating gun 24 rotates around the circumference of the round steel to heat it. During the rotation of the heating ring seat 23, the gas in the air pipe 25 can continue to flow into the ring groove, and then the combustible gas in the ring groove flows into the heating gun 24, so that the combustible gas can continue to flow into the heating gun 24 during the rotation of the heating ring seat 23. The ignition device on the heating gun 24 is used to ignite the combustible gas, so that the high-temperature flame generated is sprayed on the round steel, thereby heating the round steel passing through the heating ring seat 23.

[0037] See also Figure 4The roll forging mill assembly 3 includes a roll forging shell 31, a roll forging power device 32 and a control button 33. The control button 33 is installed on the roll forging shell 31. The control button 33 is connected to the roll forging power device 32 through a wire. The roll forging power device 32 rolls round steel, and the control button 33 drives the roll forging power device 32 to work.

[0038] The roll forging power equipment 32 includes an upper roller 321, a lower roller 322, a power shell 323, a motor 324 and a gear 325. The outer wall of the power shell 323 is connected to the motor 324, and the shaft of the motor 324 is inserted into the power shell 323 and connected to the gear 325. The motor 324 drives the gear 325 to rotate. One end of the upper roller 321 and the lower roller 322 is inserted into the power shell 323 and meshes with the upper and lower sides of the gear 325. During the rotation, the gear 325 drives the upper roller 321 and the lower roller 322 to rotate in the same direction. The other ends of the upper roller 321 and the lower roller 322 are inserted into the bearings of the roll forging shell 31. The upper roller 321 and the lower roller 322 roll round steel to form steel balls. The upper roller 321 and the lower roller 322 rotate to roll the round steel. The round steel falls on the slope 4 and rolls down the slope 4 due to the influence of gravity.

[0039] See also Figure 5 The cooling component 5 includes a transmission shaft 51, a rotating blade 52, a worm 53, a worm gear 54, a spray head 55, a crankshaft 56 and a spray shell 57. The slope 4 passes through the spray shell 57. One end of the transmission shaft 51 is connected to the worm 53. The worm 53 is connected to the bearing at the top of the spray shell 57. The bottom end of the transmission shaft 51 is fixed to the rotating blade 52 at equal intervals. The bottom surface of the rotating blade 52 is in contact with the slope 4. A guide bevel 41 is fixed on the slope 4 above the rotating blade 52. The steel ball on the slope 4 is guided by the guide bevel 41 into the spray shell 57, pushing the rotating blade 52 to rotate in one direction.

[0040] The worm 53 is meshed with the worm wheel 54, the shaft of the worm wheel 54 is fixed to the crankshaft 56, and a movably connected pressure rod 58 is sleeved on the crankshaft 56. The pressure rod 58 is connected to the piston in the spray head 55, and the spray head 55 is fixed on the spray shell 57. The rotation of the worm 53 and the worm wheel 54 drives the pressure rod 58 to move back and forth continuously, squeezing the piston of the spray head 55, pumping out water and spraying it on the steel ball for surface cooling. The power is achieved by utilizing the power of the steel ball's descent.

[0041] The lifting assembly 6 includes a lifting ladder 61 , a mesh conveyor belt 62 and blocking bars 63 . The mesh conveyor belt 62 is installed in the lifting ladder 61 , and the blocking bars 63 are distributed on the mesh conveyor belt 62 at equal intervals.

[0042] The screening assembly 7 includes a screening box 71, a screening plate 72 and screening holes 73. The screening plate 72 is fixed in the screening box 71. The screening holes 73 are distributed on the screening plate 72. The top opening of the screening box 71 is connected to the top of the mesh conveyor belt 62. The unqualified products are screened out through the screening holes 73, thereby completing the production of the integral steel balls.

[0043] A forming production process of a wear-resistant steel ball forming production line includes the following steps:

[0044] Step 1: The round steel is inserted between the upper pressing wheel 13 and the lower pressing wheel 14. The upper pressing wheel 13 and the lower pressing wheel 14 are driven by external power to send the round steel into the heating ring seat 23 of the heating shell 21;

[0045] Step 2: When the round steel is not inserted into the heating ring seat 23, the combustible gas in the gas pipe 25 is passed into the heating gun 24. The high-temperature flame ejected from the heating gun 24 rotates. As the round steel is slowly inserted, the high-temperature flame rotates and heats the round steel;

[0046] Step 3: The round steel heated to above 900°C is fed into the roller forging shell 31. The upper roller 321 and the lower roller 322 rotate in opposite directions under the drive of the motor 324. The round steel is rolled into steel balls and falls onto the slope 4.

[0047] Step 4: The round steel rolls along the slope 4 to rotate the rotating blades 52 and the transmission shaft 51, driving the crankshaft 56 to continuously reciprocate and drive the pressure rod 58 to move up and down. The negative pressure generated by the pressure rod 58 draws liquid into the spray head 55, and the sprayed liquid cools the steel ball;

[0048] Step 5: The mesh conveyor belt 62 and the baffle 63 drive the steel balls to rise and fall into the screening box 71. The balls with smaller diameters are screened and discharged from the screening holes 73, and the qualified ones are collected.

[0049] In summary, the wear-resistant steel ball forming production line and forming production process of the present invention, the outer circumference of the heating ring seat 23 is provided with a circle of clamping ring 231, and the clamping ring 231 is also located in the middle of the outer circumference of the heating ring seat 23, and the clamping ring 231 is clamped in the ring groove, and the clamping ring 231 can rotate around the ring groove, and the heating gun 24 is provided with no less than three fixed on the inner circumference of the heating ring seat 23. The purpose of setting multiple groups of heating guns 24 is to allow the clamping ring 231 to rotate during the rotation process. There is no gap between the high-temperature flames ejected when the heating gun 24 rotates, so that the round steel can be heated uninterruptedly, avoiding the uneven hot spots of the round steel caused by heating in a single direction. During the subsequent roll forging process, the parts used for rolling of the upper roller 321 and the lower roller 322 are damaged. The upper roller 321 and the lower roller 322 roll round steel into steel balls, and the steel falls on the slope 4. Due to the influence of gravity, the steel balls on the slope 4 are guided into the spray shell 57 by the guide block 41, pushing the rotating blades 52 to rotate in one direction; the worm 53 is engaged with the worm gear 54, and the rotation of the worm 53 and the worm gear 54 drives the pressure rod 58 to move back and forth continuously, squeezing the piston of the spray head 55, and pumping out water and spraying it on the steel ball for surface cooling. The power is achieved by utilizing the power of the steel ball's descent, reducing costs.

[0050] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A wear-resistant steel ball forming production line, characterized in that: The invention comprises a round steel conveying assembly (1), a round steel heating assembly (2) is provided on one side of the round steel conveying assembly (1), the round steel heating assembly (2) is provided with a roll forging mill assembly (3), the discharge port of the roll forging mill assembly (3) is connected with a slope (4), the slope (4) passes through a cooling assembly (5), the tail end of the slope (4) is connected to a lifting assembly (6), and the lifting assembly (6) is connected to a screening assembly (7); The cooling component (5) includes a transmission shaft (51), a rotating blade (52), a worm (53), a worm gear (54), a spray head (55), a crankshaft (56) and a spray shell (57). The slope (4) passes through the spray shell (57). One end of the transmission shaft (51) is connected to the worm (53). The worm (53) is connected to the bearing at the top of the spray shell (57). The bottom end of the transmission shaft (51) is fixed to the rotating blade (52) at equal intervals. The bottom surface of the rotating blade (52) is in contact with the slope (4). A guide inclined block (41) is fixed on the slope (4) above the rotating blade (52). The steel ball on the slope (4) is guided into the spray shell (57) by the guide inclined block (41), pushing the rotating blade (52) to rotate in one direction. The worm (53) is meshed with the worm wheel (54), the shaft of the worm wheel (54) is fixed to the crankshaft (56), the crankshaft (56) is provided with a movably connected pressure rod (58), the pressure rod (58) is connected to the piston in the spray head (55), the spray head (55) is fixed on the spray shell (57), the worm (53) and the worm wheel (54) rotate to drive the pressure rod (58) to move up and down continuously, squeeze the piston of the spray head (55), and pump out water and spray it on the steel ball for surface cooling, and its power is realized by the power of the steel ball descending.

2. A wear-resistant steel ball forming production line according to claim 1, characterized in that: The round steel conveying assembly (1) comprises a first side plate (11), a second side plate (12), an upper pressing wheel (13), a lower pressing wheel (14), a guide wheel (15) and a base (16); the first side plate (11) and the second side plate (12) are fixed side by side on the base (16); a conveying channel is formed between the first side plate (11) and the second side plate (12); the upper pressing wheel (13) and the lower pressing wheel (14) are arranged in two rows in the conveying channel; the guide wheel (15) is installed on the first side plate (11) and the second side plate (12) at the front ends of the upper pressing wheel (13) and the lower pressing wheel (14); the guide wheel (15) guides the round steel to be inserted between the upper pressing wheel (13) and the lower pressing wheel (14).

3. The wear-resistant steel ball forming production line according to claim 1, characterized in that: The round steel heating assembly (2) comprises a heating shell (21), a limiting ring (22), a heating ring seat (23), a heating gun (24) and an air pipe (25). The limiting ring (22) is fixed in the heating shell (21). The inner circumference of the limiting ring (22) is provided with a ring groove. The outer circumference of the heating ring seat (23) is provided with a ring clamp (231). The clamp (231) is clamped in the ring groove. The heating gun (24) is provided with no less than three fixing members on the heating ring seat. (23), and the air pipe (25) is fixedly connected to the limiting ring (22) and the annular groove. The pipe connected to the heating gun (24) passes through the heating ring seat (23) and is connected to the annular groove. The heating ring seat (23) rotates around the limiting ring (22) by external power. During the rotation of the heating ring seat (23), the combustible gas in the air pipe (25) flows into the heating gun (24) through the annular groove. The heating gun (24) rotates around the circumference of the round steel to heat it.

4. The wear-resistant steel ball forming production line according to claim 1, characterized in that: The roll forging mill assembly (3) comprises a roll forging shell (31), a roll forging power device (32) and a control button (33). The control button (33) is installed on the roll forging shell (31). The control button (33) is connected to the roll forging power device (32) via a wire. The roll forging power device (32) rolls round steel.

5. The wear-resistant steel ball forming production line according to claim 4, characterized in that: The roll forging power equipment (32) comprises an upper roller (321), a lower roller (322), a power shell (323), a motor (324) and a gear (325). The outer wall of the power shell (323) is connected to the motor (324). The shaft of the motor (324) is inserted into the power shell (323) and connected to the gear (325). One end of the upper roller (321) and the lower roller (322) is inserted into the power shell (323) and meshed with the upper and lower sides of the gear (325). The other ends of the upper roller (321) and the lower roller (322) are inserted into the bearings of the roll forging shell (31). The upper roller (321) and the lower roller (322) roll round steel to form steel balls.

6. The wear-resistant steel ball forming production line according to claim 1, characterized in that: The lifting assembly (6) comprises a lifting ladder (61), a mesh conveyor belt (62) and blocking bars (63). The mesh conveyor belt (62) is installed in the lifting ladder (61), and the blocking bars (63) are distributed on the mesh conveyor belt (62) at equal intervals.

7. The wear-resistant steel ball forming production line according to claim 1, characterized in that: The screening assembly (7) comprises a screening box (71), a screening plate (72) and screening holes (73), wherein the screening plate (72) is fixed in the screening box (71), the screening holes (73) are distributed on the screening plate (72), and the top opening of the screening box (71) is connected to the top end of the mesh conveyor belt (62).

8. A forming production process of a wear-resistant steel ball forming production line according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: The round steel is inserted between the upper pressing wheel (13) and the lower pressing wheel (14), and the upper pressing wheel (13) and the lower pressing wheel (14) are driven by external power to feed the round steel into the heating ring seat (23) of the heating shell (21); S2: When the round steel is not inserted into the heating ring seat (23), the combustible gas in the gas pipe (25) is passed into the heating gun (24), and the high-temperature flame ejected from the heating gun (24) rotates. As the round steel is slowly inserted, the high-temperature flame rotates and heats the round steel; S3: The round steel heated to above 900°C is fed into the roller forging shell (31), and the upper roller (321) and the lower roller (322) are driven by the motor (324) to rotate in opposite directions, and the round steel is rolled into steel balls and falls onto the slope (4); S4: The round steel rolls along the slope (4) to push the rotating blade (52) and the transmission shaft (51) to rotate, driving the crankshaft (56) to continuously reciprocate and drive the pressure rod (58) to move up and down, so that the negative pressure generated by the pressure rod (58) draws liquid into the spray head (55), and the sprayed liquid cools the steel ball; S5: The mesh conveyor belt (62) and the baffle (63) drive the steel balls to rise and fall into the screening box (71). The balls with smaller diameters are screened and discharged from the screening holes (73), and the qualified balls are collected.

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