A steel plate coating device with automatic plate feeding

Abstract

The present invention discloses a steel plate coating device with automatic plate feeding, which belongs to the technical field of steel plate coating, and comprises a first conveying mechanism, a coating box and a second conveying mechanism. The first conveying mechanism and the second conveying mechanism have the same structure and are located on both sides of the coating box. Through holes for steel plates to pass through are arranged on both sides of the coating box, and a sealing member for covering the through holes is arranged on the inner wall of the coating box. A fixed frame is rotatably arranged in the coating box, and the fixed frame comprises a fixed shaft, a prism and a fixed ring. A plurality of prisms are arranged and are distributed in an array with equal angles to the axis of the fixed shaft. The present invention utilizes the first conveying mechanism, a transmission rod, a driving wheel and a power member to convey the steel plates into a slide groove, and then relies on the driving member to rotate the fixed frame to a certain angle, so that the automatic plate feeding of multiple steel plates can be completed. After the steel plates are loaded, they can be coated in the coating box, and the power member and the driving member can realize automatic discharge of the coated steel plates.

Description

Technical Field

[0001] The invention discloses a steel plate coating device with automatic plate feeding, belonging to the technical field of steel plate coating. Background Art

[0002] Steel plates are flat steel materials that are poured with molten steel and pressed after cooling. The steel plates are flat and rectangular. After the steel plates are formed, they need to be surface treated to improve the overall performance. Vacuum coating is an effective method to improve performance. It is a process in which particles are sprayed onto the plated stainless steel plate, so that atoms are transferred from the source to the surface of the substrate. The stainless steel plate needs to maintain its own stability during the coating process. In the existing steel plate coating process, most of the steel plates need to be manually placed on the placement rack one by one, and then the placement rack is pushed into the coating machine. This method not only increases the labor intensity of the workers, but also fails to achieve continuous feeding, coating and discharging control. In addition, the temperature of the steel plate after coating is relatively high. During the steel plate discharging process, manual operation poses a great safety hazard. Summary of the invention

[0003] The purpose of the present invention is to solve the problems in the prior art and to provide a steel plate coating device with automatic plate feeding.

[0004] The present invention achieves the above-mentioned purpose through the following technical scheme: a steel plate coating device with automatic plate feeding, comprising a first conveying mechanism, a coating box and a second conveying mechanism, the first conveying mechanism and the second conveying mechanism have the same structure, and both are located on both sides of the coating box, through holes for steel plates to pass through are arranged on both sides of the coating box, and a sealing member for blocking the through holes is arranged on the inner wall of the coating box, a fixed frame is rotatably arranged in the coating box, the fixed frame comprises a fixed shaft, a prism and a fixed ring, a plurality of prisms are arranged and distributed in an array with equal angles to the axis of the fixed shaft, and the fixed ring is arranged There are two of them, one end of the prism is fixedly connected to the fixed shaft, and the other end is fixedly connected to two fixed rings, the prism is provided with a slide groove for placing the steel plate, and the middle part of the prism has a first hollow part, the end of the prism close to the fixed ring is rotatably installed with a transmission rod, the transmission rod is provided with a driving wheel, the coating box is provided with a driving member for driving the fixed frame to rotate a preset angle, wherein the two slide grooves maintain the same conveying height of the steel plate as the first conveying mechanism and the second conveying mechanism, and a power member for driving the transmission rod to rotate forward and reverse is provided between the coating box and the fixed frame.

[0005] Preferably, the driving member includes a first motor, a driving disk and a groove wheel, the groove wheel is fixed on a fixed shaft, the first motor is installed on the coating box, and its output shaft is fixedly connected to the driving disk.

[0006] Preferably, the power component includes a second motor, a clutch, a transmission shaft, a driving gear, a ring gear and a driven gear. The second motor is arranged at the bottom of the coating box, the clutch is connected to the transmission shaft and the output shaft of the second motor, the driving gear is fixed on the transmission shaft, the fixing ring is provided with an annular groove, the ring gear is provided with an annular convexity matching the annular groove, a plurality of driven gears are provided and installed at the end of the transmission rod, the ring gear is respectively provided with external tooth blocks and internal tooth blocks meshing with the driving gear and the driven gear, and the prism is provided with a first pressure block for installing the ring gear.

[0007] Preferably, the driving wheel includes a fixed disk, a circular sleeve and a fixed plate, the fixed disk is provided with a boss penetrating the circular sleeve, the circular sleeve is rotatably connected to the boss, a plurality of mounting grooves distributed in an array are provided in the boss, a clamping member is slidably provided in the mounting groove, the clamping member includes a spring and a clamping block, the circular sleeve is provided with an isosceles trapezoidal clamping groove, the clamping block is slidably provided in the mounting groove, the spring is located in the mounting groove and applies a force to the clamping block to resist the clamping groove, the clamping groove and the clamping block have mutually matching inclined surfaces, the clamping block is provided with a convex column for positioning the spring, the fixing plate is fixedly connected to the boss by bolts, one end of the transmission rod has a limiting portion connected to the fixed disk, the fixing plate and the driven gear, and the cross-section of the limiting portion is a non-circular structure.

[0008] Preferably, two blocking frames for preventing the steel plate from escaping from the fixing frame are arranged on the outer side of the fixing frame, the blocking frame is an arc-shaped structure, and its two ends are located above the horizontal conveying direction of the first conveying mechanism and the second conveying mechanism, the blocking frame has a second hollow portion between two adjacent prisms corresponding to the blocking frame, and support columns are arranged on both sides of the blocking frame, the support columns are fixedly connected to the coating box by bolts, and the two blocking frames are arranged in the coating box in an up and down manner.

[0009] Preferably, the sealing member includes a sealing plate, a second pressure block and a cylinder, two second pressure blocks are provided, and the second pressure blocks and the cylinder are fixed to the side wall of the coating box by bolts, the sealing plate is L-shaped and is slidably arranged between the two second pressure blocks, the piston of the cylinder is fixedly connected to the sealing plate, and a blocking plate is arranged on the sealing plate near the first conveying mechanism.

[0010] Preferably, the first conveying mechanism includes a base, a third motor, a driving rod and a conveying wheel. The driving rod is provided in plurality and is rotatably mounted on the base at equal intervals. The base is provided with a conveying groove aligned with the through hole. Multiple conveying wheels are provided on the same driving rod. The output shaft of the third motor is fixedly connected to one of the driving rods. A transmission member is provided between two adjacent driving rods, and the transmission member includes a pulley and a belt. The pulley is fixed on the two driving rods, and the belt is sleeved on the outer sides of the two pulleys.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] By arranging a coating box, a first conveying mechanism, a second conveying mechanism, a fixed frame, a driving member and a power member, the steel plate can be conveyed to the slide chute by utilizing the first conveying mechanism, a transmission rod, a driving wheel and a power member, and then the fixed frame can be rotated to a certain angle by relying on the driving member, so that the automatic feeding of multiple steel plates can be completed. After the steel plates are loaded, the coating can be completed in the coating box, and the power member and the driving member can realize automatic discharge of the coated steel plates. The automatic coating processing of the steel plates can be realized without manual operation, and the safety hazards of manual operation are eliminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a steel plate coating device with automatic plate feeding according to the present invention;

[0014] Figure 2 This is a schematic diagram of the internal structure of a steel plate coating device with automatic plate feeding according to the present invention;

[0015] Figure 3 It is a schematic diagram of the structure of the fixing frame, the power member and the driving member in the present invention;

[0016] Figure 4 It is a schematic diagram of the structure of the driving member in the present invention;

[0017] Figure 5 It is a schematic diagram of the structure of the fixing frame in the present invention;

[0018] Figure 6 for Figure 3 A partial enlarged view of the middle A;

[0019] Figure 7 It is a structural schematic diagram of the gear ring in the present invention;

[0020] Figure 8 It is a schematic diagram of the structure of the transmission rod and the driving wheel in the present invention;

[0021] Fig. 9 It is a partial structural schematic diagram of the transmission rod and the driving wheel in the present invention;

[0022] Fig.10 It is a schematic diagram of the structure of the driving wheel in the present invention;

[0023] Fig.11 It is a structural schematic diagram of the blocking frame in the present invention;

[0024] Fig.12 It is a schematic diagram of the structure of the sealing member in the present invention.

[0025] Figure numerals: 1, first conveying mechanism; 2, conveying wheel; 3, driving rod; 4, base; 5, pulley; 6, belt; 7, coating box; 8, second conveying mechanism; 9, through hole; 10, fixed frame; 11, transmission rod; 12, sealing member; 13, power member; 14, blocking plate; 15, fixed ring; 16, blocking frame; 17, driving member; 18, prism; 19, gear ring; 20, driving gear; 21, transmission shaft; 22, clutch; 23, second motor; 24, driving disk; 25, first motor; 26, groove wheel; 27, first Hollow portion; 28, slide groove; 29, fixed shaft; 30, annular groove; 31, driven gear; 32, first pressure block; 33, third motor; 34, inner toothed block; 35, annular convex; 36, outer toothed block; 37, limit portion; 38, fixed disk; 39, clamping piece; 40, round sleeve; 41, fixed plate; 42, boss; 43, clamping block; 44, mounting groove; 45, inclined surface; 46, spring; 47, clamping groove; 48, support column; 49, second hollow portion; 50, sealing plate; 51, second pressure block; 52, cylinder; 53, driving wheel. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0027] like Figure 1-Figure 12 As shown, a steel plate coating device with automatic plate feeding includes a first conveying mechanism 1, a coating box 7 and a second conveying mechanism 8. The first conveying mechanism 1 and the second conveying mechanism 8 have the same structure and are located on both sides of the coating box 7. Through holes 9 for steel plates to pass through are arranged on both sides of the coating box 7, and a sealing member 12 for shielding the through holes 9 is arranged on the inner wall of the coating box 7. A fixed frame 10 is rotatably arranged in the coating box 7. The fixed frame 10 includes a fixed shaft 29, a prism 18 and a fixed ring 15. A plurality of prisms 18 are arranged and are distributed in an array with equal angles to the axis of the fixed shaft 29. Two fixed rings 15 are arranged, and one end of the prism 18 is connected to the fixed shaft 29. The fixed shaft 29 is fixedly connected, and the other end is fixedly connected to the two fixed rings 15. A slide groove 28 for placing the steel plate is arranged on the prism 18, and the middle part of the prism 18 has a first hollow part 27. A transmission rod 11 is rotatably installed at one end of the prism 18 close to the fixed ring 15, and a driving wheel 53 is arranged on the transmission rod 11. A driving member 17 for driving the fixed frame 10 to rotate a preset angle is arranged on the coating box 7, wherein the two slide grooves 28 maintain the same conveying height of the steel plate as the first conveying mechanism 1 and the second conveying mechanism 8, and a power member 13 for driving the transmission rod 11 to rotate forward and reverse is arranged between the coating box 7 and the fixed frame 10.

[0028] like Figure 3 and Figure 4 As shown, the driving member 17 includes a first motor 25, a driving disk 24 and a groove wheel 26. The groove wheel 26 is fixed on the fixed shaft 29. The first motor 25 is installed on the coating box 7, and its output shaft is fixedly connected to the driving disk 24. The first motor 25 drives the driving disk 24 to rotate, and it rotates in coordination with the groove wheel 26 to rotate the fixed shaft 29 by a certain angle. This principle is a prior art and will not be elaborated here. The prisms 18 can be set to eight, and the angle between two adjacent prisms 18 is 45°. The angle of each rotation of the groove wheel 26 is also 45°. In this way, different slide slots 28 can be aligned with the first conveying mechanism 1, thereby completing the automatic feeding and loading of multiple steel plates.

[0029] like Figure 2 , Figure 3 and Figure 6 As shown, the power member 13 includes a second motor 23, a clutch 22, a transmission shaft 21, a driving gear 20, a ring gear 19 and a driven gear 31. The second motor 23 is arranged at the bottom of the coating box 7. The clutch 22 is connected to the transmission shaft 21 and the output shaft of the second motor 23. The driving gear 20 is fixed on the transmission shaft 21. The fixing ring 15 is provided with an annular groove 30. The ring gear 19 is provided with a ring convex 35 that cooperates with the annular groove 30. There are multiple driven gears 31 and they are installed at the end of the transmission rod 11. The ring gear 19 is respectively provided with an outer tooth block 36 and an inner tooth block 34 that mesh with the driving gear 20 and the driven gear 31. The prism 18 is provided with a first pressing block 32 for installing the ring gear 19. The function of the clutch 22 is to control the second motor 23 and the transmission shaft 21, when the driving member 17 drives the fixed frame 10 to rotate, the ring gear 19 maintains synchronous action, so that the active gear 20 drives the transmission shaft 21 to rotate, and the power of the transmission shaft 21 will not be transmitted to the output shaft of the second motor 23. When the fixed frame 10 remains stationary and the steel plate needs to be transported, the second motor 23 drives the transmission shaft 21 to rotate, so that the active gear 20 is engaged with the outer tooth block 36 on the ring gear 19, and drives the ring gear 19 to rotate in the annular groove 30. The center of the annular groove 30 is on the axis of the fixed shaft 29. When the ring gear 19 rotates, it relies on the inner tooth block 34 to drive all the driven gears 31 to rotate, so that the driven gear 31 drives the transmission rod 11 and the driving wheel 53 to rotate, which can provide the ability for the steel plate to slide into or out of the slide groove 28.

[0030] like Figure 3 , Figure 8 Fig. 9 and Fig.10As shown, the driving wheel 53 includes a fixed disk 38, a circular sleeve 40 and a fixed sheet 41. The fixed disk 38 is provided with a boss 42 that penetrates the circular sleeve 40. The circular sleeve 40 is rotatably connected to the boss 42. A plurality of array-distributed mounting grooves 44 are provided in the boss 42. A clamping member 39 is slidably provided in the mounting groove 44. The clamping member 39 includes a spring 46 and a clamping block 43. The circular sleeve 40 is provided with an isosceles trapezoidal clamping groove 47. The clamping block 43 is slidably provided in the mounting groove 44. The spring 46 is located in the mounting groove 44 and exerts a force on the block 43 to resist the groove 47. There are mutually matching inclined surfaces 45 between the groove 47 and the block 43. The block 43 is provided with a convex column for positioning the spring 46. The fixing plate 41 is fixedly connected to the boss 42 by bolts. One end of the transmission rod 11 has a fixing plate 38, a fixing plate 41 and a limiting portion 37 connected to the driven gear 31. The cross section of the limiting portion 37 is a non-circular structure. When one end of the steel plate enters the sliding When the guide plate 42 is in the groove 28, the transmission rod 11 drives the fixed plate 38 and the fixed plate 41 to rotate synchronously. The circular sleeve 40 is restricted between the fixed plate 38 and the fixed plate 41, and the diameter of the circular sleeve 40 is larger than the diameter of the fixed plate 38 and the fixed plate 41. The circular sleeve 40 keeps rotating synchronously under the action of the clamping member 39. The circular sleeve 40 relies on the friction with the steel to drive the steel plate to smoothly slide into the slide groove 28 until one end of the steel plate hits the prism 18. At this time, the steel plate can no longer slide. Since the circular sleeve 40 and the surface of the steel plate are in a state of conflict, when the friction resistance between the two is large, the block 43 will slide along the inclined surface 45 and produce displacement in the length direction of the mounting groove 44 to compress the spring 46. In this way, relative rotation will occur between the fixed plate 38 and the circular sleeve 40. Such a design can reduce the friction between the circular sleeve 40 and the steel plate, so that when a steel plate is loaded in one of the slide grooves 28, the steel plate in the other slide groove 28 will not be subjected to a large force.

[0031] like Figure 2 , Figure 3 and Fig.11As shown, two blocking frames 16 are arranged on the outside of the fixing frame 10 for preventing the steel plate from escaping from the fixing frame 10. The blocking frame 16 is an arc-shaped structure, and its two ends are located above the first conveying mechanism 1 and the second conveying mechanism 8 in the horizontal conveying direction. The blocking frame 16 has a second hollow portion 49 between two adjacent prisms 18, and support columns 48 are arranged on both sides of the blocking frame 16. The support columns 48 are fixedly connected to the coating box 7 by bolts. The two blocking frames 16 are arranged in the coating box 7 in an upper and lower manner. By setting the blocking frames 16, after the coating of the steel plate is completed, the transmission member is used to The transmission rod 11 and the driving wheel 53 are driven to rotate, so that the driving wheel 53 drives the steel plate to slide out along the slide groove 28. The steel plate in the slide groove 28 aligned with the second conveying mechanism 8 can pass through the through hole 9 smoothly, while the steel plates in the remaining positions will be blocked by the blocking frame 16. The steel plate in the slide groove 28 aligned with the first conveying mechanism 1 can be restricted from sliding by adding other blocking parts when sliding, so that the coated steel plate can be discharged smoothly. The first hollow part 27 and the second hollow part 49 can facilitate the coating steam to pass through and adhere to the steel plate, thereby smoothly realizing the coating process.

[0032] like Figure 2 and Fig.12 As shown, the sealing member 12 includes a sealing plate 50, a second pressure block 51 and a cylinder 52. Two second pressure blocks 51 are provided, and the second pressure blocks 51 and the cylinder 52 are fixed to the side wall of the coating box 7 by bolts. The sealing plate 50 is L-shaped and slidably arranged between the two second pressure blocks 51. The piston of the cylinder 52 is fixedly connected to the sealing plate 50. A blocking plate 14 is arranged on the sealing plate 50 near the first conveying mechanism 1. The cylinder 52 drives the sealing plate 50 to rise and fall vertically along the second pressure block 51, and can control the opening or closing of the through hole 9, so as to facilitate the loading and unloading of the steel plate. In the process of discharging the coated steel plate, the through hole 9 near the second conveying mechanism 8 is in an open state, while the through hole 9 near the first conveying mechanism 1 is in a closed state. At this time, the blocking plate 14 on the sealing plate 50 on this side can block the sliding of the steel plate, and it works together with the blocking frame 16 so that the coated steel plate can only slide out of the slide groove 28 from one side of the second conveying mechanism 8.

[0033] like Figure 1 and Figure 2As shown, the first conveying mechanism 1 includes a base 4, a third motor 33, a driving rod 3 and a conveying wheel 2. A plurality of driving rods 3 are provided and are rotatably installed on the base 4 at equal intervals. A conveying groove aligned with the through hole 9 is provided on the base 4. A plurality of conveying wheels 2 are provided on the same driving rod 3. The output shaft of the third motor 33 is fixedly connected to one of the driving rods 3. A transmission member is provided between two adjacent driving rods 3. The transmission member includes a pulley 5 and a belt 6. The pulley 5 is fixed on the two driving rods 3. The belt 6 is sleeved on the outside of the two pulleys 5. The third motor 33 drives the driving rod 3 to rotate, so that the driving rod 3 can drive the conveying wheel 2 to rotate and convey the steel plate. The plurality of driving rods 3 rotate synchronously relying on the transmission member, so that the steel plate can smoothly pass through the through hole 9 and enter the slide groove 28 to achieve the effect of automatic plate feeding, and the second conveying mechanism 8 can automatically discharge the coated steel plate.

[0034] Working principle: When coating the steel plate, the sealing member 12 first opens the through hole 9, and then the first conveying mechanism 1 drives the steel plate to pass through the through hole 9. When one end of the steel plate enters the slide groove 28, the power member 13 drives the transmission rod 11 to rotate clockwise, so that the first steel plate can slide smoothly into the slide groove 28. Then the driving member 17 drives the fixing frame 10 to rotate a certain angle so that the next slide groove 28 is aligned with the conveying groove, and the steel plate is allowed to enter different slide grooves 28 in the same way until the steel plate feeding is completed, and then the through hole 9 is closed by the sealing member 12. Then the coating box 7 starts working and coats the steel plate. When the coating is completed, the through hole 9 is opened again, and the power member 13 drives the transmission rod 11 to rotate counterclockwise, so that the steel plate slides out of the slide groove 28 and enters the conveying groove of the second conveying mechanism 8. At the same time, under the joint action of the driving member 17 and the power member 13, the coated steel plate can be automatically discharged.

[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A steel plate coating device with automatic plate feeding, comprising a first conveying mechanism (1), a coating box (7) and a second conveying mechanism (8), characterized in that: The first conveying mechanism (1) and the second conveying mechanism (8) have the same structure and are located on both sides of the coating box (7). Through holes (9) for steel plates to pass through are provided on both sides of the coating box (7), and a sealing member (12) for shielding the through holes (9) is provided on the inner wall of the coating box (7). A fixed frame (10) is rotatably provided in the coating box (7), and the fixed frame (10) comprises a fixed shaft (29), a prism (18) and a fixed ring (15). A plurality of prisms (18) are provided and are arranged in an array at equal angles to the axis of the fixed shaft (29). Two fixed rings (15) are provided, and one end of the prism (18) is fixedly connected to the fixed shaft (29), and the other end is fixedly connected to two fixed rings (15). The prism (18) is provided with a slide groove (28) for placing the steel plate, and the middle part of the prism (18) has a first hollow part (27), and the end of the prism (18) close to the fixed ring (15) is rotatably mounted with a transmission rod (11), and the transmission rod (11) is provided with a driving wheel (53), and the coating box (7) is provided with a driving member (17) for driving the fixed frame (10) to rotate a preset angle, wherein the two slide grooves (28) maintain the same conveying height of the steel plate as the first conveying mechanism (1) and the second conveying mechanism (8), and a power member (13) for driving the transmission rod (11) to rotate forward and reverse is provided between the coating box (7) and the fixed frame (10), and the power member (13) includes a second motor (2 3), a clutch (22), a transmission shaft (21), a driving gear (20), a ring gear (19) and a driven gear (31), the second motor (23) being arranged at the bottom of the coating box (7), the clutch (22) being connected to the transmission shaft (21) and the output shaft of the second motor (23), the driving gear (20) being fixed on the transmission shaft (21), the fixing ring (15) being provided with an annular groove (30), the ring gear (19) being provided with an annular protrusion (35) cooperating with the annular groove (30), a plurality of driven gears (31) being provided and mounted on the end of the transmission rod (11), the ring gear (19) being provided with external toothed blocks (36) respectively meshing with the driving gear (20) and the driven gear (31) and an inner toothed block (34), the prism (18) being provided with a first pressing block (32) for mounting a gear ring (19), the driving wheel (53) comprising a fixing disk (38), a circular sleeve (40) and a fixing plate (41), the fixing disk (38) being provided with a boss (42) penetrating the circular sleeve (40), the circular sleeve (40) being rotatably connected to the boss (42), the boss (42) being provided with a plurality of mounting grooves (44) distributed in an array, a clamping member (39) being slidably disposed in the mounting groove (44), the clamping member (39) comprising a spring (46) and a clamping block (43), the circular sleeve (40) being provided with a clamping groove (47) in the shape of an isosceles trapezoid, the clamping block (43) being slidably disposed in the mounting groove (44),The spring (46) is located in the mounting groove (44) and applies a force to the block (43) to resist the groove (47). The groove (47) and the block (43) have mutually matching inclined surfaces (45). The block (43) is provided with a boss for positioning the spring (46). The fixing plate (41) is fixedly connected to the boss (42) by bolts. One end of the transmission rod (11) has a fixing plate (38), a fixing plate (41) and a limiting portion (37) connected to the driven gear (31). The cross section of the limiting portion (37) is a non-circular structure.

2. The automatic plate feeding steel plate coating device according to claim 1 is characterized in that: The driving member (17) comprises a first motor (25), a driving disk (24) and a groove wheel (26), wherein the groove wheel (26) is fixed on a fixed shaft (29), and the first motor (25) is mounted on the coating box (7), and its output shaft is fixedly connected to the driving disk (24).

3. The automatic plate feeding steel plate coating device according to claim 1 is characterized in that: Two blocking frames (16) are arranged on the outer side of the fixing frame (10) for preventing the steel plate from detaching from the fixing frame (10). The blocking frame (16) is an arc-shaped structure, and its two ends are located above the horizontal conveying direction of the first conveying mechanism (1) and the second conveying mechanism (8). The blocking frame (16) has a second hollow portion (49) between two adjacent prisms (18), and support columns (48) are arranged on both sides of the blocking frame (16). The support columns (48) are fixedly connected to the coating box (7) by bolts, and the two blocking frames (16) are arranged in the coating box (7) in an up-and-down manner.

4. The automatic plate feeding steel plate coating device according to claim 1, characterized in that: The sealing member (12) comprises a sealing plate (50), a second pressure block (51) and a cylinder (52), wherein two second pressure blocks (51) are provided, and the second pressure blocks (51) and the cylinder (52) are fixed to the side wall of the coating box (7) by bolts, and the sealing plate (50) is in an L-shaped structure and is slidably arranged between the two second pressure blocks (51), and the piston of the cylinder (52) is fixedly connected to the sealing plate (50), and a blocking plate (14) is arranged on the sealing plate (50) close to the first conveying mechanism (1).

5. The automatic plate feeding steel plate coating device according to claim 1, characterized in that: The first conveying mechanism (1) comprises a base (4), a third motor (33), a driving rod (3) and a conveying wheel (2); a plurality of driving rods (3) are provided and are rotatably mounted on the base (4) at equal intervals; a conveying groove aligned with the through hole (9) is provided on the base (4); a plurality of conveying wheels (2) are provided on the same driving rod (3); an output shaft of the third motor (33) is fixedly connected to one of the driving rods (3); a transmission member is provided between two adjacent driving rods (3); the transmission member comprises a pulley (5) and a belt (6); the pulley (5) is fixed on the two driving rods (3); and the belt (6) is sleeved on the outside of the two pulleys (5).

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