CN213792379U

CN213792379U - Magnesium oxide coating spraying equipment of silicon steel

Info

Publication number: CN213792379U
Application number: CN202022666298.3U
Authority: CN
Inventors: 黎梅贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-07-27
Anticipated expiration: 2030-11-17

Abstract

The utility model belongs to the technical field of the silicon steel apparatus for producing, a silicon steel's magnesium oxide coating spraying equipment is disclosed, including first roller, the second roller, support and spraying device, first roller and second roller parallel placement, the both ends of first roller are connected with two supports respectively, the both ends of second roller are connected with two supports respectively, spraying device includes the spraying case, conveying rod and shower nozzle, be provided with the controller on the conveying rod, the one end and the spraying case of conveying rod are connected, the other end and the shower nozzle of conveying rod are connected, spraying device divide into group's spraying device and lower group's spraying device, it is located the planar top that the axis of first roller and second roller constitutes to go up group's spraying device, lower group's spraying device is located the planar below that the axis of first roller and second roller constitutes. Because the upper group of spraying devices and the lower group of spraying devices are respectively arranged, and the controller is arranged on the conveying rod of the spraying devices, the coating amount of the upper surface and the lower surface of the steel strip is more uniform.

Description

Magnesium oxide coating spraying equipment of silicon steel

Technical Field

The utility model belongs to the technical field of the silicon steel apparatus for producing, especially, relate to a magnesium oxide coating spraying equipment of silicon steel.

Background

Silicon alloy steel containing 1.0-4.5% of silicon and less than 0.08% of carbon is called silicon steel. It has the features of high magnetic permeability, low coercive force, large resistance coefficient, etc., so that its hysteresis loss and eddy current loss are small. The magnetic material is mainly used as a magnetic material in motors, transformers, electrical appliances and electrical instruments. In order to meet the requirements of punching and shearing processing when manufacturing electric appliances, certain plasticity is also required. In order to improve the magnetic induction performance and reduce the hysteresis loss, the lower the content of harmful impurities, the better, the flat plate shape and the good surface quality are required.

In order to meet the requirement of the electrical and physical properties of the iron core, the silicon steel sheet is subjected to a high-temperature annealing process of 1200-1250 ℃ in the manufacturing process of the silicon steel sheet. In order to complete the regular arrangement of iron metal atoms in the annealing process, an excellent insulating film is formed on the surface of the silicon steel sheet together, the process needs to be completed only after 7 days, and the silicon steel sheet usually becomes iron mass in the long high-temperature process. Therefore, the high-temperature annealing blocking agent is coated between the silicon steel sheets to prevent the silicon steel sheets from sintering, and the blocking agent and the silicon on the surfaces of the silicon steel sheets form excellent insulating film layers. Scientific experiments prove that magnesium oxide is the first choice. The magnesium oxide is firstly used as a high-temperature annealing blocking agent in the manufacture of silicon steel sheets, has the function of forming a magnesium silicate glass body insulating coating with silicon, and can remove impurities such as sulfur, phosphorus and the like in the silicon steel in a high-temperature reaction.

Before the silicon steel is annealed at high temperature, a magnesium oxide coating needs to be coated on the steel coil, and the magnesium oxide coating can prevent the steel coil from being bonded during the high-temperature annealing. The magnesium silicate glass film generated by the reaction of the magnesium oxide and the silicon dioxide in the oxide layer on the surface of the steel strip not only has certain insulativity and corrosion resistance, but also can promote the desulfurization and deoxidation of the steel strip in the purification stage. The magnesium oxide coating equipment in the prior art sprays magnesium oxide coating liquid to the steel strip surface, and because the effect of gravity, the coating liquid of spraying at the lower surface can drip, causes the coating volume of steel strip lower surface to be less than upper surface coating volume usually, influences the steel strip performance, the emergence of the sticky tape phenomenon when leading to high temperature annealing.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a magnesium oxide coating spraying equipment of silicon steel aims at solving the problem that the coating volume of lower surface is less than the upper surface in the magnesium oxide spraying processing of silicon steel.

The utility model discloses a realize like this, a magnesium oxide coating spraying equipment of silicon steel, including first roller, second roller, support and spraying device, its characterized in that: the first roller and the second roller are placed in parallel, two ends of the first roller are respectively connected with the two brackets, two ends of the second roller are respectively connected with the two brackets, one end of the second roller penetrates through the brackets and then is connected with the first gear, the second gear is matched with the first gear, an output shaft of a motor is connected with the second gear, the motor is connected with an external power supply and an external control device and is controlled by the external control device, the spraying device is arranged between the first roller and the second roller and is connected with the external power supply and the external control device and is controlled by the external control device, the spraying device comprises a spraying box, a conveying rod and a spray head, the spraying device is divided into an upper group of spraying devices and a lower group of spraying devices, and the upper group of spraying devices is positioned above a plane formed by the axes of the first roller and the second roller, the lower group of spraying devices are positioned below a plane formed by the axes of the first roller and the second roller, a controller is arranged in the middle of the conveying rod, one end of the conveying rod is connected with the spraying box, and the other end of the conveying rod is connected with the spray head.

Further, the spray heads of the upper group of spray coating devices face downwards, and the spray heads of the lower group of spray coating devices face upwards.

Furthermore, the two ends of the first roller are hinged to the two supports, and the two ends of the second roller are hinged to the two supports.

Furthermore, the motor is arranged in the motor sleeve, the lower end of the motor sleeve is connected with the motor support, and a plurality of groups of through holes are formed in the motor sleeve.

Further, the gear ratio of the first gear to the second gear is 5.6.

Furthermore, the first gear and the second gear are made of steel with the grade of 20 CrMnTiH.

The utility model has the advantages that: because the utility model discloses be provided with respectively and organize spraying device down to set up the controller on spraying device's conveying rod, so can make the coating volume of surface more even about the steel band.

Drawings

Fig. 1 is an isometric view of the present invention at a first viewing angle;

fig. 2 is an isometric view of the present invention from a second perspective;

fig. 3 is an isometric view of the present spray coating device.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 3, a magnesium oxide coating spraying apparatus for silicon steel includes a first roller, a second roller, two brackets and a spraying device, the first roller is used for unwinding a steel strip, the second roller is used for winding the steel strip, the first roller and the second roller are disposed in parallel, two ends of the first roller are respectively connected with the two brackets, two ends of the second roller are respectively connected with the two brackets, the brackets support the first roller and the second roller, one end of the second roller penetrates through the brackets and then is connected with a first gear, a second gear is matched with the first gear, an output shaft of a motor is connected with the second gear, the motor is connected with an external power supply and an external control device and is controlled by the external control device, the spraying device is disposed between the first roller and the second roller, the spraying device is connected with the external power supply and the external control device and is controlled by the external control device, the motor drives the second roller to electrically wind the steel strip, the steel strip has constant winding speed and is uniformly sprayed in the longitudinal direction of the steel strip, the spraying device comprises a spraying box, a conveying rod and a spray head, the spraying device is divided into an upper group of spraying devices and a lower group of spraying devices, the upper group of spraying devices are positioned above a plane formed by the axes of a first roller and a second roller, the upper group of spraying devices are used for spraying the upper surface of the steel strip, the lower group of spraying devices are positioned below the plane formed by the axes of the first roller and the second roller, the lower group of spraying devices are used for spraying the lower surface of the steel strip, a controller is arranged in the middle of the conveying rod and can control the flow of the coating in the conveying rod, and due to the action of gravity, the coating liquid sprayed on the lower surface of the steel strip can drip to cause the coating amount of the lower surface of the steel strip to be smaller than that of the upper surface, so that the controller can be used for controlling the flow of the coating in the conveying rod of the lower group of spraying devices to be larger than that of the coating in the upper group of spraying devices, the coating amount of the upper surface and the lower surface of the steel strip tends to be consistent, the spraying is more uniform, one end of the conveying rod is connected with the spraying box, and the other end of the conveying rod is connected with the spray head.

The spray heads 403 of the upper group of spray devices 41 face downward and the spray heads 403 of the lower group of spray devices 42 face upward.

The two ends of the first roller 1 are hinged with the two brackets 3, and the two ends of the second roller 2 are hinged with the two brackets 3.

The motor 8 is arranged in the motor sleeve 9, the lower end of the motor sleeve 9 is connected with the motor support 10, and a plurality of groups of through holes are formed in the motor sleeve 9 and are beneficial to heat dissipation.

The first gear 6 and the second gear 7 have a transmission ratio of 5.6, and have a larger transmission ratio, so that the second roller 2 has a larger coiling force on the steel strip.

The first gear 6 and the second gear 7 are made of steel with the mark of 20CrMnTiH, and the 20CrMnTiH steel is carburizing steel with good performance, has high hardenability, has hard and wear-resistant surface and tough center, and has high low-temperature impact toughness welding.

In use the utility model discloses the time, after the equipment circular telegram, arrange the steel band book in on first roller 1, draw steel band one end to second roller 2 on and rather than fixed, adjust respectively and go up group's spraying device 41 and group's spraying device 42's controller 5 down, make the coating flow in group's spraying device 42's the conveying rod 402 down be greater than group's spraying device 41, open spraying device 40 and starter motor 8, first roller 1 unreels the steel band, spraying device 40 carries out the spraying to the steel band, thereby motor 8 drives the rotation of second roller 2 and carries out the rolling to the steel band.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a magnesium oxide coating spraying equipment of silicon steel, includes first roller (1), second roller (2), support (3) and spraying device (40), its characterized in that: the first roller (1) and the second roller (2) are placed in parallel, two ends of the first roller (1) are respectively connected with the two brackets (3), two ends of the second roller (2) are respectively connected with the two brackets (3), one end of the second roller (2) penetrates through the brackets (3) and then is connected with a first gear (6), a second gear (7) is matched with the first gear (6), an output shaft of a motor (8) is connected with the second gear (7), and the motor (8) is connected with an external power supply and an external control device and is controlled by the external control device;

the spraying device (40) is arranged between the first roller (1) and the second roller (2), the spraying device (40) is connected with an external power supply and an external control device and is controlled by the external control device, the spraying device (40) comprises a spraying box (401), a conveying rod (402) and a spray head (403), the spraying device (40) is divided into an upper group of spraying devices (41) and a lower group of spraying devices (42), the upper group of spraying devices (41) are positioned above a plane formed by the axes of the first roller (1) and the second roller (2), the lower group of spraying devices (42) are positioned below the plane formed by the axes of the first roller (1) and the second roller (2), a controller (5) is arranged in the middle of the conveying rod (402), one end of the conveying rod (402) is connected with the spraying box (401), the other end of the conveying rod (402) is connected with the spray head (403).

2. The magnesium oxide coating spraying apparatus for silicon steel of claim 1, wherein: the spray heads (403) of the upper group of spray coating devices (41) face downwards, and the spray heads (403) of the lower group of spray coating devices (42) face upwards.

3. The magnesium oxide coating spraying apparatus for silicon steel of claim 1, wherein: the two ends of the first roller (1) are hinged to the two supports (3), and the two ends of the second roller (2) are hinged to the two supports (3).

4. The magnesium oxide coating spraying apparatus for silicon steel of claim 1, wherein: the motor (8) is arranged in the motor sleeve (9), the lower end of the motor sleeve (9) is connected with the motor support (10), and a plurality of groups of through holes are formed in the motor sleeve (9).

5. The magnesium oxide coating spraying apparatus for silicon steel of claim 1, wherein: the transmission ratio of the first gear (6) to the second gear (7) is 5.6.

6. The magnesium oxide coating spraying apparatus for silicon steel of claim 1, wherein: the first gear (6) and the second gear (7) are made of steel with the grade of 20 CrMnTiH.