A hot-dip plating device for a continuous production line of silicon steel strips

Abstract

The present invention discloses a hot-dip plating device for a continuous production line of silicon steel strips, which includes a dipping bath. An oscillation member is fixedly connected to the inner wall of the dipping bath, a cooling member is fixedly connected to the outer surface of the dipping bath, a polishing member is fixedly connected to the outer surface of the cooling member, and a collecting member is fixedly connected to the outer surface of the polishing member. The device is provided with an oscillation member, which mechanically oscillates the steel strip by a machine during the dipping process, enabling the steel strip to be in full contact with the plating solution, ensuring uniform galvanizing on the surface of the steel strip, and guaranteeing the hot-dip plating effect. After the dipping is completed, the cooling member cools the steel strip to accelerate the formation of the plating surface. After the cooling is completed, the polishing member can automatically polish the steel strip to grind off the excess zinc points remaining on the steel strip, improving the quality of the hot-dip plating of the steel strip. The machine automatically oscillates the steel strip during hot-dip plating and automatically polishes the surface of the dipped steel strip, improving the processing efficiency and reducing the working intensity of the labor.

Description

Technical Field

[0001] The present invention relates to the field of mechanical manufacturing, and particularly to a hot-dip coating device for a continuous silicon steel strip production line. Background Art

[0002] Hot-dip galvanizing is to make the molten metal react with the iron matrix to produce an alloy layer, so as to combine the matrix and the coating. Hot-dip galvanizing first pickles the steel parts to remove the iron oxide on the surface of the steel parts. After pickling, it is cleaned in an ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution tank of ammonium chloride and zinc chloride, and then sent into the hot-dip coating tank. Through the reaction and diffusion between iron and zinc, a zinc alloy coating with good adhesion is plated on the surface of the steel products. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion, long service life, etc. Hot-dip galvanizing is one of the most effective means to delay the environmental corrosion of steel materials. Compared with other metal protection methods, the hot-dip galvanizing process has incomparable advantages in the protection characteristics of the combination of the physical barrier and electrochemical protection of the coating, the bonding strength between the coating and the matrix, the density, durability, maintenance-free property and economy of the coating, and its adaptability to the shape and size of the products.

[0003] During the hot-dip coating process, in order to make the steel strip fully contact with the coating solution, it is necessary to shake the steel strip in the coating solution. At present, it is basically shaken manually, with low efficiency and high labor intensity for workers; after the steel strip is hot-dip coated and cooled, many small zinc bumps often remain on the surface. These zinc bumps need to be ground off. At present, it is basically manually polished with a file, with low polishing efficiency and high labor intensity for workers. Moreover, these excess zinc points can be melted and reused for hot-dip coating after grinding, so they need to be collected. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the technical solution adopted by the present invention to solve its technical problems is: A hot-dip coating device for a continuous silicon steel strip production line described in the present invention includes a coating bath. An oscillation component is fixedly connected to the inner wall of the coating bath. A cooling component is fixedly connected to one side of the coating bath. A grinding component is fixedly connected to the side of the cooling component away from the coating bath. A collection component is fixedly connected to the outer surface of the grinding component. The device is provided with an oscillation component, which mechanically oscillates the steel strip by a machine during the coating process, so that the steel strip fully contacts the coating solution, ensuring uniform galvanizing on the surface of the steel strip and ensuring the hot-dip coating effect. After the coating is completed, the cooling component cools the steel strip to accelerate the formation of the coating surface and facilitate the next process. After cooling, the grinding component can automatically grind the steel strip to make the surface of the steel strip smooth and flat, and grind off the excess zinc points remaining on the steel strip, ensuring the smooth and flat surface of the steel strip and improving the quality of the hot-dip coating of the steel strip. The machine automatically oscillates the steel strip during hot-dip coating and automatically grinds the surface of the coated steel strip, improving the processing efficiency and reducing the labor intensity of workers.

[0005] Further, the oscillation member includes an oscillation bracket, an oscillation seat is sleeved and slidably connected to the outer surface of the oscillation bracket, a vibration plate is fixedly connected to one side of the oscillation seat, a cam member is slidably connected to the bottom of the vibration plate, a drive shaft of an oscillation motor is fixedly connected to one side of the cam member, the oscillation motor drives the cam member to rotate, the cam member drives the oscillation seat to oscillate up and down through the vibration plate, an oscillation roller is connected to the side surface of the oscillation seat, and the oscillation roller drives the steel strip to vibrate up and down, so that the steel strip is fully contacted with the plating solution, ensuring uniform galvanizing on the surface of the steel strip. The cam member includes a lower cam, a limiting groove is formed in the top of the lower cam, a connecting rod is slidably connected to the inner wall of the limiting groove, an upper cam is slidably connected to one end of the connecting rod away from the lower cam, a limiting groove is formed in the bottom of the upper cam, and a telescopic rod is fixedly connected to the inner wall of the limiting groove. When the size and thickness of the steel strip are different, the stroke force of the oscillation needs to be changed to ensure that steel strips of various sizes and thicknesses can be thoroughly oscillated to meet the dip plating effect. The telescopic rod can adjust the size of the cam mechanism, and further adjust the stroke of the oscillation, so that steel strips of various sizes and thicknesses can be thoroughly oscillated, improving the practicability of the equipment.

[0006] Further, the dip plating tank includes a plating solution tank, an auxiliary roller is fixedly connected to the top of one side of the plating solution tank, a clamping roller is fixedly connected to the inner wall of the plating solution tank, the outer surface of the oscillation bracket is fixedly connected to the plating solution tank, and the outer surface of the oscillation motor is fixedly connected to the plating solution tank. The auxiliary roller assists the silicon steel strip to enter the plating solution tank for hot dip plating, and the clamping roller helps the steel strip to smoothly enter and exit the dip plating tank to complete hot dip plating.

[0007] Further, the cooling member includes a cooling bracket, an upper air blower is fixedly connected to the top of the cooling bracket, a lower air blower is fixedly connected to the inner wall of the cooling bracket, and the lower air blower is located below the upper air blower. The upper air blower and the lower air blower perform air cooling on both sides of the silicon steel strip after hot dip plating, accelerating the formation of the coating on the surface of the steel strip and facilitating further processing.

[0008] Furthermore, the grinding member includes a grinding bracket. A fixed plate is fixedly connected to the top of the grinding bracket. A lower motor is fixedly connected to one side of the fixed plate. The driving shaft of the lower motor penetrates through the fixed plate and is fixedly connected to a grinding roller. A moving plate is slidably connected to the inner wall of the fixed plate. An upper motor is fixedly connected to one side of the moving plate. A grinding screw rod is rotatably connected to the bottom of the moving plate. The bottom of the grinding screw rod penetrates through the fixed plate and is threadedly connected to the fixed plate. The grinding roller includes a roller body. A receiving groove is formed in the roller body. A grinding spring is fixedly connected to the inner wall of the receiving groove. One end of the grinding spring away from the inner wall of the receiving groove is fixedly connected to a grinding tool. After the silicon steel strip is hot-dip galvanized and cooled into shape, there will be excess zinc points on the surface of the steel strip. The grinding roller grinds it to make the surface of the steel strip smooth and grind off the remaining excess zinc points on the steel strip, ensuring that the surface of the steel strip is smooth and flat. When the thickness of the steel strip changes, rotating the threaded rod can adjust the distance between the two grinding rollers to adapt to steel strips of different thicknesses and improve the applicability of the device.

[0009] Furthermore, the collection member includes a lower air extraction port. A filter screen is fixedly connected to the top of the lower air extraction port. An air duct is connected to the bottom of the lower air extraction port. The end of the air duct away from the lower air extraction port is connected to an upper air extraction port. A collection cylinder is fixedly connected to the bottom of the air duct. The collection cylinder is located below the upper air extraction port. The outer surface of the upper air extraction port is fixedly connected to the moving plate. The outer surface of the lower air extraction port is fixedly connected to the fixed plate. After the silicon steel strip is hot-dip galvanized, the zinc debris ground by the grinding member enters the air duct through the air extraction port and then enters the collection cylinder through the air duct. There may be iron chips generated during processing and grinding mixed in the grinding debris, which needs to be separated in the collection cylinder.

[0010] Furthermore, the collection cylinder includes a cylinder body. A separation motor is fixedly connected to the inner wall of the cylinder body. The rotating end of the separation motor is fixedly connected to a magnetic turntable. An exhaust fan is fixedly connected to the inner wall of the cylinder body. The separation motor drives the magnetic turntable to rotate. The debris collected in the air duct falls onto the magnetic turntable. The iron chips in the debris are collected on the magnetic turntable by the magnetic force. The zinc chips in the debris will be thrown into the cylinder body under the centrifugal force, completing the separation and collection of the broken zinc. After melting the zinc again, it can be put back into the galvanizing bath to participate in hot-dip galvanizing, saving resources, reducing production costs, and improving the economic benefits of the equipment.

[0011] The beneficial effects of the present invention are as follows:

[0012] 1. The present invention provides an oscillating member, which mechanically oscillates the steel strip by a machine during the dip coating process, enabling the steel strip to come into full contact with the plating solution, ensuring uniform zinc plating on the surface of the steel strip, and guaranteeing the hot dip coating effect. After the dip coating is completed, a cooling member cools the steel strip, accelerating the formation of the plated surface and facilitating the next process. After cooling, a grinding member automatically grinds the steel strip, smoothing the surface of the steel strip and removing the excess zinc points remaining on the steel strip, ensuring a smooth and flat surface of the steel strip, improving the quality of the hot dip coating of the steel strip. The machine automatically oscillates the steel strip during hot dip coating and automatically grinds the surface of the steel strip after dip coating, improving the processing efficiency and reducing the labor intensity.

[0013] 2. The present invention provides an oscillating member. The oscillating motor drives the cam member to rotate, and the cam member drives the oscillating roller to oscillate up and down, enabling the steel strip to come into full contact with the plating solution, ensuring uniform zinc plating on the surface of the steel strip. The telescopic rod can drive the upper cam to move up and down, changing the distance between the upper cam and the lower cam, adjusting the size of the cam mechanism, and further adjusting the oscillation stroke, so that steel strips of various sizes and thicknesses can be thoroughly oscillated, improving the practicability of the equipment.

[0014] 3. The present invention provides a grinding member to smooth the surface of the silicon steel strip after hot dip coating and remove the excess zinc points remaining on the steel strip, ensuring a smooth and flat surface of the steel strip. The machine automatically grinds, improving the production efficiency and reducing the labor intensity of workers. When the thickness of the steel strip changes, rotating the threaded rod can adjust the distance between the two grinding rollers to adapt to steel strips of different thicknesses, improving the applicability of the device.

[0015] 4. The present invention provides a hand mechanism. The separation motor in the collection cylinder drives the magnetic turntable to rotate, and the debris collected in the air duct falls onto the magnetic turntable. The iron filings in the debris are attracted by the magnetic force and collected on the magnetic turntable, while the zinc filings in the debris are thrown into the cylinder under the centrifugal force, completing the separation and collection of the zinc filings. After remelting the zinc, it can be re-introduced into the dip coating bath to participate in the hot dip coating, saving resources, reducing production costs, and improving the economic benefits of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a hot dip coating device for a continuous preparation production line of silicon steel strips according to the present invention;

[0017] Figure 2 is a schematic structural diagram of the oscillating member of the present invention;

[0018] Figure 3 is a schematic structural diagram of the cam member of the present invention;

[0019] Figure 4 is a schematic structural diagram of the dip coating bath of the present invention;

[0020] Figure 5 It is a schematic structural diagram of the cooling component of the present invention;

[0021] Figure 6 It is a schematic structural diagram of the grinding component of the present invention;

[0022] Figure 7 It is a schematic structural diagram of the grinding roller of the present invention;

[0023] Figure 8 It is a schematic structural diagram of the collection component of the present invention;

[0024] Figure 9 It is a schematic structural diagram of the collection cylinder of the present invention;

[0025] In the figure: 1. Oscillation component; 2. Immersion plating bath; 3. Cooling component; 4. Grinding component; 5. Collection component; 11. Oscillation bracket; 12. Oscillation seat; 13. Cam component; 14. Oscillation motor; 15. Vibration plate; 131. Lower cam; 132. Connecting rod; 133. Upper cam; 134. Telescopic rod; 21. Plating solution bath; 22. Auxiliary roller; 23. Clamping roller; 31. Cooling bracket; 32. Upper blower; 33. Lower blower; 41. Grinding bracket; 42. Fixed plate; 43. Lower motor; 44. Grinding roller; 45. Grinding screw; 46. Moving plate; 47. Upper motor; 441. Roller body; 442. Grinding spring; 443. Grinding tool; 51. Lower air extraction port; 52. Filter screen; 53. Air duct; 54. Collection cylinder; 55. Upper air extraction port; 541. Cylinder body; 542. Separation motor; 543. Exhaust fan; 544. Magnetic turntable. Specific embodiments

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are given for purposes of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed form. Many modifications and variations will be obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles of the present invention and its practical application, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0027] Usage Figures 1-9 A hot-dip plating device for a continuous silicon steel strip production line according to an embodiment of the present invention will be described as follows.

[0028] As Figures 1-9As shown in the figure, a hot-dip coating device for a continuous silicon steel strip production line according to the present invention includes a dip coating tank 2. An oscillation member 1 is fixedly connected to the inner wall of the dip coating tank 2. A cooling member 3 is fixedly connected to one side of the dip coating tank 2. A polishing member 4 is fixedly connected to the side of the cooling member 3 away from the dip coating tank 2. A collection member 5 is fixedly connected to the outer surface of the polishing member 4. The device is provided with an oscillation member. During the dip coating process, the machine mechanically oscillates the steel strip, enabling the steel strip to fully contact the plating solution, ensuring uniform galvanizing on the surface of the steel strip, and guaranteeing the hot-dip coating effect. After the dip coating is completed, the cooling member cools the steel strip, accelerating the formation of the coating surface and facilitating the next process. After cooling, the polishing member can automatically polish the steel strip, making the surface of the steel strip smooth and flat, and grinding off the excess zinc points remaining on the steel strip, ensuring the smooth and flat surface of the steel strip and improving the quality of the hot-dip coating of the steel strip. The machine automatically oscillates the steel strip during hot-dip coating and automatically polishes the surface of the dip-coated steel strip, improving the processing efficiency and reducing the labor intensity.

[0029] The oscillation member 1 includes an oscillation bracket 11. An oscillation seat 12 is sleeved and slidably connected to the outer surface of the oscillation bracket 11. A vibration plate 15 is fixedly connected to one side of the oscillation seat 12. A cam member 13 is slidably connected to the bottom of the vibration plate 15. A drive shaft of an oscillation motor 14 is fixedly connected to one side of the cam member 13. The oscillation motor drives the cam member to rotate. The cam member drives the oscillation seat to oscillate up and down through the vibration plate. An oscillation roller is connected to the side of the oscillation seat. The oscillation roller drives the steel strip to vibrate up and down, enabling the steel strip to fully contact the plating solution and ensuring uniform galvanizing on the surface of the steel strip.

[0030] The dip coating tank 2 includes a plating solution tank 21. An auxiliary roller 22 is fixedly connected to the top of one side of the plating solution tank 21. A clamping roller 23 is fixedly connected to the inner wall of the plating solution tank 21. The outer surface of the oscillation bracket 11 is fixedly connected to the plating solution tank 21. The outer surface of the oscillation motor 14 is fixedly connected to the plating solution tank 21. The auxiliary roller assists the silicon steel strip to enter the plating solution tank for hot-dip coating, and the clamping roller helps the steel strip to smoothly enter and exit the dip coating tank to complete the hot-dip coating.

[0031] The cooling member 3 includes a cooling bracket 31. An upper blower 32 is fixedly connected to the top of the cooling bracket 31. A lower blower 33 is fixedly connected to the inner wall of the cooling bracket 31. The lower blower 33 is located below the upper blower 32. The upper blower and the lower blower perform air cooling on both sides of the hot-dip coated silicon steel strip, accelerating the formation of the coating on the surface of the steel strip and facilitating further processing.

[0032] The grinding component 4 includes a grinding bracket 41. A fixed plate 42 is fixedly connected to the top of the grinding bracket 41. A lower motor 43 is fixedly connected to one side of the fixed plate 42. The drive shaft of the lower motor 43 penetrates through the fixed plate 42 and is fixedly connected to a grinding roller 44. The inner wall of the fixed plate 42 is slidably connected to a moving plate 46. An upper motor 47 is fixedly connected to one side of the moving plate 46. The bottom of the moving plate 46 is rotatably connected to a grinding screw 45. The bottom of the grinding screw 45 penetrates through the fixed plate 42 and is threadedly connected to the fixed plate 42. The grinding roller 44 includes a roller body 441. A storage groove is formed in the roller body 441. A grinding spring 442 is fixedly connected to the inner wall of the storage groove. One end of the grinding spring 442 away from the inner wall of the storage groove is fixedly connected to a grinding tool 443. After the silicon steel strip is cooled and formed by hot dip galvanizing, there will be excess zinc points on the surface of the steel strip. The grinding roller grinds it to make the surface of the steel strip smooth and grind off the remaining excess zinc points on the steel strip, ensuring that the surface of the steel strip is smooth and flat. When the thickness of the steel strip changes, rotating the threaded rod can adjust the distance between the two grinding rollers to adapt to steel strips of different thicknesses and improve the applicability of the device.

[0033] The collection component 5 includes a lower air extraction port 51. A filter screen 52 is fixedly connected to the top of the lower air extraction port 51. A wind pipe 53 is connected to the bottom of the lower air extraction port 51. One end of the wind pipe 53 away from the lower air extraction port 51 is connected to an upper air extraction port 55. A collection cylinder 54 is fixedly connected to the bottom of the wind pipe 53. The collection cylinder 54 is located below the upper air extraction port 55. The outer surface of the upper air extraction port 55 is fixedly connected to the moving plate 46. The outer surface of the lower air extraction port 51 is fixedly connected to the fixed plate 42. After the silicon steel strip is hot dip galvanized, the zinc debris ground by the grinding component enters the wind pipe through the air extraction port and enters the collection cylinder through the wind pipe. There may be iron chips generated during processing and grinding mixed in the grinding debris, which needs to be separated in the collection cylinder.

[0034] The collection cylinder 54 includes a cylinder body 541. A separation motor 542 is fixedly connected to the inner wall of the cylinder body 541. The rotating end of the separation motor 542 is fixedly connected to a magnetic turntable 544. An exhaust fan 543 is fixedly connected to the inner wall of the cylinder body 541. The separation motor drives the magnetic turntable to rotate. The debris collected in the wind pipe falls onto the magnetic turntable. The iron chips in the debris are collected on the magnetic turntable by the magnetic force. The zinc chips in the debris will be thrown into the cylinder under the centrifugal force, completing the separation and collection of the broken zinc. After melting the zinc again, it can be put back into the galvanizing bath to participate in hot dip galvanizing, saving resources, reducing production costs, and improving the economic benefits of the equipment.

[0035] The specific working process is as follows:

[0036] During operation, the silicon steel strip enters the dip coating bath 2 with the assistance of the auxiliary roller 22. During hot dip coating, it is oscillated up and down under the action of the oscillation member 1, so that the steel strip makes full contact with the plating solution, ensuring the hot dip coating effect. After hot dip coating, the steel strip is cooled under the cooling member 3. After cooling, it is polished by the abrasive tool 443 on the polishing roller 44, and the excess zinc particles on the steel strip are polished clean. After polishing, the debris enters the air duct 53 through the air extraction port, enters the collection cylinder 54 through the air duct 53, and falls onto the magnetic turntable 544. The iron filings in the debris are collected on the magnetic turntable 544 by magnetic force, and the zinc filings in the debris will be thrown into the cylinder body 541 under the centrifugal force, completing the separation and collection of the broken zinc.

[0037] Use Figure 3 The following describes a hot dip coating device for a continuous production line of silicon steel strips according to an embodiment of the present invention.

[0038] As Figure 3 As shown, the cam member 13 of the hot dip coating device for a continuous production line of silicon steel strips described in the present invention includes a lower cam 131. A limiting groove is provided at the top of the lower cam 131, and a connecting rod 132 is slidably connected to the inner wall of the limiting groove. One end of the connecting rod 132 away from the lower cam 131 is slidably connected to an upper cam 133. A limiting groove is provided at the bottom of the upper cam 133, and a telescopic rod 134 is fixedly connected to the inner wall of the limiting groove. When the size and thickness of the steel strip are different, the stroke force of the oscillation needs to be changed to ensure that steel strips of various sizes and thicknesses can be thoroughly oscillated to meet the dip coating effect. The telescopic rod can adjust the size of the cam mechanism, and thus adjust the oscillation stroke, so that steel strips of various sizes and thicknesses can be thoroughly oscillated, improving the practicability of the device.

[0039] The specific working process is as follows:

[0040] When changing to silicon steel strips of different sizes and thicknesses, the telescopic rod 134 can drive the upper cam 133 to move up and down, change the distance between the upper cam 133 and the lower cam 131, adjust the size of the cam mechanism, and thus adjust the oscillation stroke, so that steel strips of various sizes and thicknesses can be thoroughly oscillated, improving the practicability of the device.

[0041] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without making creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specifically stated and limited, shall be implemented according to the conventional means in the art.

Claims

1. A hot dip coating device for a continuous production line for silicon steel strip, comprising a coating tank (2), an oscillating member (1) fixedly connected to the inner wall of the coating tank (2), a cooling member (3) fixedly connected to one side of the coating tank (2), a grinding member (4) fixedly connected to the side of the cooling member (3) away from the coating tank (2), and a collecting member (5) fixedly connected to the outer surface of the grinding member (4), characterized in that: The oscillating component (1) comprises an oscillating bracket (11), an oscillating seat (12) is sleeved on the outer surface of the oscillating bracket (11) and slidably connected thereto, a vibration plate (15) is fixedly connected to one side of the oscillating seat (12), a cam component (13) is slidably connected to the bottom of the vibration plate (15), and a driving shaft of an oscillating motor (14) is fixedly connected to one side of the cam component (13); The cam member (13) comprises a lower cam (131), a limiting groove is provided at the top of the lower cam (131), a connecting rod (132) is slidably connected to the inner wall of the limiting groove, an end of the connecting rod (132) away from the lower cam (131) is slidably connected to the upper cam (133), a limiting groove is provided at the bottom of the upper cam (133), and a telescopic rod (134) is fixedly connected to the inner wall of the limiting groove; The collecting component (5) comprises a lower air outlet (51), the top of the lower air outlet (51) is fixedly connected to a filter screen (52), the bottom of the lower air outlet (51) is connected to an air duct (53), one end of the air duct (53) away from the lower air outlet (51) is connected to an upper air outlet (55), the bottom of the air duct (53) is fixedly connected to a collecting cylinder (54), and the collecting cylinder (54) is located below the upper air outlet (55).

2. The hot dip coating equipment for a continuous production line for silicon steel strip according to claim 1, characterized in that: The immersion plating pool (2) comprises a plating solution pool (21), an auxiliary roller (22) is fixedly connected to the top of one side of the plating solution pool (21), and a clamping roller (23) is fixedly connected to the inner wall of the plating solution pool (21).

3. The hot dip coating equipment for a continuous production line for silicon steel strip according to claim 1, characterized in that: The outer surface of the oscillation bracket (11) is fixedly connected to the plating liquid pool (21), and the outer surface of the oscillation motor (14) is fixedly connected to the plating liquid pool (21).

4. The hot dip coating equipment for a continuous production line for silicon steel strip according to claim 1, characterized in that: The cooling component (3) comprises a cooling bracket (31), the top of the cooling bracket (31) is fixedly connected to an upper fan (32), the inner wall of the cooling bracket (31) is fixedly connected to a lower fan (33), and the lower fan (33) is located below the upper fan (32).

5. The hot dip coating equipment for a continuous production line for silicon steel strip according to claim 1, characterized in that: The grinding component (4) comprises a grinding bracket (41), the top of the grinding bracket (41) is fixedly connected to a fixed plate (42), one side of the fixed plate (42) is fixedly connected to a lower motor (43), a driving shaft of the lower motor (43) passes through the fixed plate (42) and is fixedly connected to a grinding roller (44), an inner wall of the fixed plate (42) is slidably connected to a movable plate (46), one side of the movable plate (46) is fixedly connected to an upper motor (47), the bottom of the movable plate (46) is rotatably connected to a grinding screw (45), the bottom of the grinding screw (45) passes through the fixed plate (42) and is threadedly connected to the fixed plate (42).

6. The hot dip coating equipment for a continuous production line for silicon steel strip according to claim 5, characterized in that: The grinding roller (44) comprises a roller body (441), a receiving groove is provided on the roller body (441), a grinding spring (442) is fixedly connected to the inner wall of the receiving groove, and a grinding tool (443) is fixedly connected to one end of the grinding spring (442) away from the inner wall of the receiving groove.

7. The hot dip coating equipment for a continuous production line for silicon steel strip according to claim 1, characterized in that: The outer surface of the upper air outlet (55) is fixedly connected to the movable plate (46), and the outer surface of the lower air outlet (51) is fixedly connected to the fixed plate (42).

8. The hot dip coating equipment for a continuous production line for silicon steel strip according to claim 1, characterized in that: The collecting cylinder (54) comprises a cylinder (541), the inner wall of the cylinder (541) is fixedly connected to a separation motor (542), the rotating end of the separation motor (542) is fixedly connected to a magnetic turntable (544), and the inner wall of the cylinder (541) is fixedly connected to an exhaust fan (543).

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