Galvanized strip steel surface drying device

Abstract

The utility model discloses a galvanized strip steel surface drying device in the technical field of galvanized strip steel drying, which comprises a working table and a drying box arranged at the top of the working table, and the top of the working table is provided with winding and unwinding mechanisms which are positioned on the left side and the right side of the drying box and are used for winding and unwinding galvanized strip steel. A reel changing mechanism facilitating reel changing is arranged at the bottom end of the winding and unwinding mechanism, hot air boxes are installed at the top and the bottom of the drying box correspondingly, and a plurality of sets of guide rollers are rotationally installed in the drying box; according to the galvanized strip steel surface drying device, water stains existing on the surfaces of galvanized strip steel with different thicknesses can be rotationally wiped within an adjusting range through the water removal mechanism before drying, so that the drying efficiency of the surfaces of the galvanized strip steel is improved, meanwhile, impurities attached to the surfaces of the galvanized strip steel can be brushed and swept through the dust removal mechanism after drying, and then the drying efficiency is improved. And through the arrangement of the coil changing mechanism, an operator can conveniently and rapidly detach and discharge the galvanized strip steel after drying is completed, and then the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of galvanized strip drying, in particular to a surface drying device for galvanized strip. Background Technique

[0002] Galvanized strip is a long and narrow strip steel plate that is cold-rolled or hot-rolled and coated with a layer of raw material called (zinc, aluminum) to varying degrees. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion, and long service life. The matrix of the hot-dip galvanized strip undergoes complex physical and chemical reactions with the molten plating solution to form a corrosion-resistant and tightly structured zinc-iron alloy layer. The alloy layer is integrated with the pure zinc layer and the strip steel matrix, so it has strong corrosion resistance. The surface drying treatment of galvanized strip is an important link in the hot-dip galvanizing production process, and its purpose is to remove the moisture in the zinc layer and improve the quality and corrosion resistance of the product.

[0003] However, most of the existing surface drying devices for galvanized strip do not have the function of wiping the water stains on the surface of the galvanized strip before drying, which increases the drying time and cannot conveniently change the coil of the galvanized strip after the drying operation is completed, resulting in low work efficiency, affecting the production efficiency, and being not conducive to people's use. Therefore, the technical personnel in this field provide a surface drying device for galvanized strip to solve the problems raised in the above background technique. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a surface drying device for galvanized strip to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A surface drying device for galvanized strip, including a workbench and a drying box arranged on the top of the workbench. A winding and unwinding mechanism for winding and unwinding the galvanized strip is arranged on the top of the workbench on both the left and right sides of the drying box. A coil-changing mechanism for facilitating coil changing is arranged at the bottom of the winding and unwinding mechanism. Hot air boxes are installed on both the top and bottom of the drying box. A plurality of guide rollers are rotatably installed inside the drying box. A water removal mechanism for removing water is arranged at the bottom end of the left side of the drying box. A dust removal mechanism for removing dust is arranged at the top end of the right side of the drying box.

[0006] Preferably, the winding and unwinding mechanism includes a first motor, a unwinding roller, a second motor, a rotating rod and a winding roller. Mounting plates are symmetrically welded to the top of the workbench on the left side of the drying box. A first motor is mounted on the side wall of one of the mounting plates through bolts. The output shaft of the first motor is fixedly installed with a unwinding roller. One end of the unwinding roller penetrates through the mounting plate and is rotatably installed on the inner side wall of the other mounting plate. A support plate is welded to the top of the workbench on the right side of the drying box. A second motor is fixedly installed on the side surface of the support plate. The output shaft of the second motor is fixedly installed with a rotating rod. A rectangular groove is formed in the top of the workbench on one side of the support plate. The bottom ends of movable plates are symmetrically and slidably connected inside the rectangular groove. One end of the rotating rod penetrates through the support plate and is rotatably connected between the movable plates. A winding roller is sleeved on the outer wall of the rotating rod. A roll changing mechanism located inside the rectangular groove is arranged at the bottom end of the movable plate.

[0007] Preferably, limiting cylinders are rotationally connected to the outer wall of the rotating rod through threads on both sides of the winding roller. One end of each limiting cylinder is respectively movably inserted into both side walls of the winding roller.

[0008] Preferably, the roll changing mechanism includes a first bidirectional screw rotatably installed on the inner side wall of the rectangular groove. A third motor is mounted on one side of the workbench through bolts. One end of the first bidirectional screw penetrates through the movable plate and the workbench and is fixedly connected to the output shaft of the third motor. The first bidirectional screw is rotationally connected to the movable plate through threads.

[0009] Preferably, the water removing mechanism includes connecting blocks, a second bidirectional screw and water absorbing rollers. Mounting frames communicating with the inside are symmetrically welded to the bottom ends on both sides of the drying box. Multiple groups of connecting blocks are slidably connected inside each mounting frame. A second bidirectional screw is rotationally connected to the bottom of the mounting frame through a bearing seat. One end of the second bidirectional screw penetrates through the mounting frame and the connecting block and extends to the outside of the top of the mounting frame and is welded with a rotating block. The connecting block is rotationally connected to the second bidirectional screw through threads. A feeding hole is formed in the bottom end on the left side of the drying box. Two water absorbing rollers are arranged inside the feeding hole and are distributed side by side up and down. The rotating shafts at both ends of the water absorbing roller extend into the mounting frame and are rotatably connected to the side walls of the connecting blocks.

[0010] Preferably, the dust removing mechanism includes cleaning brushes and springs. A discharge hole is formed in the top end of the right side surface of the drying box. Moving grooves are formed in the inner wall of the drying box on both sides of the discharge hole. Both ends of the cleaning brushes are symmetrically and slidably connected inside the moving grooves. Multiple groups of springs are welded to both ends on the side of the cleaning brushes away from each other. The other ends of the springs are respectively welded to the inner walls of the moving grooves. Multiple groups of telescopic rods penetrating through the springs are fixedly installed between the inner walls of the moving grooves and the cleaning brushes.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] 1. In the present utility model, for the surface drying device of galvanized strip steel, by providing a water removal mechanism, it can rotate and wipe the water stains existing on the surfaces of galvanized strip steels with different thicknesses within an adjustable range before drying, thereby accelerating the drying efficiency of the surfaces of galvanized strip steels. At the same time, the provided dust removal mechanism can brush and sweep the impurities attached to the surfaces of galvanized strip steels after drying.

[0013] 2. In the present utility model, for the surface drying device of galvanized strip steel, by providing a coil changing mechanism, it can facilitate the operator to quickly disassemble and unload the galvanized strip steel after drying is completed, thereby improving the work efficiency. Description of the Drawings

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a cross-sectional view of the overall structure of the present utility model;

[0016] Figure 3 is a top view of the overall structure of the present utility model;

[0017] Figure 4 is Figure 1 an enlarged cross-sectional view of A in

[0018] Figure 5 is Figure 2 an enlarged view of B in

[0019] In the figure: 1, workbench; 2, drying box; 3, hot air box; 4, guide roller; 9, mounting plate; 10, support plate; 11, rectangular groove; 12, limiting cylinder; 13, mounting frame; 14, feed hole; 15, discharge hole; 16, movable groove; 51, first motor; 52, unwind roll; 53, second motor; 54, rotating rod; 55, winding roll; 56, movable plate; 61, first bidirectional screw; 62, third motor; 71, connecting block; 72, second bidirectional screw; 73, water absorption roller; 74, rotating block; 81, cleaning brush; 82, spring; 83, telescopic rod. Detailed Embodiment

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 to 5In an embodiment of the utility model, a galvanized steel strip surface drying device comprises a workbench 1 and a drying box 2 arranged on the top of the workbench 1, and hot air boxes 3 are installed on the top and bottom of the drying box 2 for drying the surface of the galvanized steel strip. A plurality of guide rollers 4 are rotatably installed inside the drying box 2 for guiding the movement trajectory of the galvanized steel strip.

[0022] The top of the workbench 1 is provided with a retracting and unretracting mechanism located on the left and right sides of the drying box 2 for retracting and unretracting galvanized strip steel, the retracting and unretracting mechanism includes a first motor 51, a release roller 52, a second motor 53, a rotating rod 54 and a winding roller 55, and the top of the workbench 1 is symmetrically welded with a mounting plate 9 located on the left side of the drying box 2, one side wall of one of the mounting plates 9 is bolted with a first motor 51, a release roller 52 is fixedly installed on the output shaft of the first motor 51, one end of the release roller 52 passes through the mounting plate 9 and is rotatably installed on the inner side wall of the other mounting plate 9, and a support plate 10 located on the right side of the drying box 2 is welded on the top of the workbench 1, and a second motor 53 is fixedly installed on the side of the support plate 10. The output shaft of the machine 53 is fixedly installed with a rotating rod 54, and a rectangular groove 11 located on one side of the support plate 10 is opened on the top of the workbench 1, and the bottom end of the movable plate 56 is symmetrically slidably connected inside the rectangular groove 11. One end of the rotating rod 54 passes through the support plate 10 and is rotatably connected between the movable plates 56. The outer wall of the rotating rod 54 is sleeved with a roller 55, and the outer wall of the rotating rod 54 is rotatably connected to a limiting cylinder 12 located on both sides of the roller 55 through a thread. One end of the limiting cylinder 12 is movably inserted into the two side walls of the roller 55, and the provided limiting cylinder 12 is used to fix and limit the roller 55 and the rotating rod 54, so that the roller 55 can rotate in the same direction driven by the rotating rod 54.

[0023] When in use, the galvanized strip is placed on the surface of the release roller 52, and then the galvanized strip is pulled through the lower surface and the upper surface of the guide roller 4 in the drying box 2 in turn, and finally wrapped around the outer wall of the winding roller 55, and then the hot air box 3 is started to perform the drying operation, and at the same time, the first motor 51 and the second motor 53 are controlled to start at the same speed. When the first motor 51 rotates, the release roller 52 rotates synchronously therewith, so that the galvanized strip to be dried can be released and dried, and when the second motor 53 rotates, the rotating rod 54 is used to enable the winding roller 55 to reel in the galvanized strip after the drying operation is completed.

[0024] The bottom end of the movable plate 56 is provided with a roll-changing mechanism located inside the rectangular groove 11. The roll-changing mechanism includes a first bidirectional screw 61 rotatably installed on the inner side wall of the rectangular groove 11. One side of the workbench 1 is bolted with a third motor 62. One end of the first bidirectional screw 61 penetrates through the movable plate 56 and the workbench 1 and is fixedly connected to the output shaft of the third motor 62. The first bidirectional screw 61 is rotationally connected to the movable plate 56 through threads. When in use, after the galvanized strip is dried and wound up by the roller 55, the third motor 62 is started to drive the movable plate 56 to slide away from each other in the rectangular groove 11 by the first bidirectional screw 61, so that one side of the movable plate 56 gradually moves away from the side wall of the rotating rod 54. Then, the limiting cylinder 12 close to the support plate 10 is rotated to release the restriction on one side of the roller 55. Subsequently, the other limiting cylinder 12 is rotated and removed from one end of the rotating rod 54. Then, by pulling the roller 55, it can be removed from the surface of the rotating rod 54, which is convenient for the operator to carry out the blanking work after drying the surface of the galvanized strip.

[0025] The bottom end of the left side surface of the drying box 2 is provided with a water removal mechanism for water removal. The water removal mechanism includes a connecting block 71, a second bidirectional screw 72 and a water absorption roller 73. Installation frames 13 communicating with the inside are symmetrically welded at the bottom ends on both sides of the drying box 2. A plurality of groups of connecting blocks 71 are slidably connected inside the installation frames 13. The bottom of the installation frame 13 is rotationally connected with a second bidirectional screw 72 through a bearing seat. One end of the second bidirectional screw 72 penetrates through the installation frame 13 and the connecting block 71 and extends to the outside of the top of the installation frame 13 and is welded with a rotating block 74. The connecting block 71 is rotationally connected to the second bidirectional screw 72 through threads. A feeding hole 14 is opened at the bottom end of the left side of the drying box 2. Inside the feeding hole 14, there are two water absorption rollers 73 arranged side by side up and down. The rotating shafts at both ends of the water absorption roller 73 extend into the installation frame 13 and are rotationally connected to the side walls of the connecting blocks 71.

[0026] When in use, by rotating the rotating block 74, the second bidirectional screw 72 rotates accordingly, so that the connecting blocks 71 rotationally connected to its surface through threads move away from or close to each other. When the connecting blocks 71 move, the water absorption rollers 73 connected to them move synchronously, so that the water absorption rollers 73 can be applicable to galvanized strips of different thicknesses within the adjustable range. When the water absorption rollers 73 are in contact with the surface of the galvanized strip, they can first wipe the water stains on the surface of the galvanized strip during the unwinding and drying operation of the galvanized strip, thereby accelerating the drying efficiency of the galvanized strip surface drying device for the surface of the galvanized strip.

[0027] A dust removal mechanism for dust removal is provided at the top of the right side surface of the drying box 2, and the dust removal mechanism includes a cleaning brush 81 and a spring 82. A discharge hole 15 is opened at the top of the right side surface of the drying box 2, and a movable groove 16 is opened on the inner wall of the drying box 2 on both sides of the discharge hole 15. The inside of the movable groove 16 is symmetrically and slidably connected with the two ends of the cleaning brush 81. Multiple groups of springs 82 are welded at both ends of the side away from the cleaning brush 81, and the other ends of the springs 82 are respectively welded to the inner wall of the movable groove 16, and multiple groups of telescopic rods 83 penetrating the springs 82 are fixedly installed between the inner wall of the movable groove 16 and the cleaning brush 81.

[0028] When in use, after the surface of the galvanized steel strip is dried and passes between the cleaning brush 81, the cleaning brush 81 can brush away the impurities attached to its surface. During the brushing process of the cleaning brush 81, the galvanized steel strip exerts an ejection force on the cleaning brush 81, causing the spring 82 to continuously undergo compression deformation, and the telescopic rod 83 contracts accordingly. The provided spring 82 is used to prevent the cleaning brush 81 from being in rigid contact with the surface of the galvanized steel strip for a long time, thereby causing damage to the surface of the galvanized steel strip.

[0029] Working principle: When the galvanized steel strip surface drying device is used, the galvanized steel strip is first placed on the surface of the placing roller 52, and then the galvanized steel strip is pulled to enter the drying box 2 through the feeding hole 14, and then passes through the lower surface and upper surface of the guide roller 4 in turn, and finally comes out of the discharging hole 15 and is wound around the outer wall of the winding roller 55, and then the rotating block 74 is rotated so that the second bidirectional screw 72 drives the water absorption roller 73 to contact the surface of the galvanized steel strip, so as to rotate and wipe the water stains on the surface, start the hot air box 3 to perform the drying operation, and at the same time control the first motor 51 and the second motor 53 to start at the same speed, so as to dry the surface of the galvanized steel strip. During the drying and winding operation, the cleaning brush 81 can clean the impurities on the surface of the galvanized strip when it is being wound up, without the need for manual operation, thus saving time and effort. After the drying operation on the surface of the galvanized strip is completed, the third motor 62 is started so that the first bidirectional screw 61 drives the movable plate 56 to move toward the side wall away from the rotating rod 54, and then the limiting cylinder 12 close to the support plate 10 is rotated to release the restriction on one side of the winding roller 55, and then the other limiting cylinder 12 is rotated to remove it from one end of the rotating rod 54, and then the winding roller 55 can be removed from the surface of the rotating rod 54 by pulling it. The operation is simple, and it is convenient for unloading the galvanized strip.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A galvanized steel strip surface drying device, comprising a workbench (1) and a drying box (2) arranged on the top of the workbench (1), characterized in that: The top of the workbench (1) is provided with a retracting and releasing mechanism located on the left and right sides of the drying box (2) for retracting and releasing the galvanized steel strip, and the bottom of the retracting and releasing mechanism is provided with a roll changing mechanism for facilitating roll changing, the top and bottom of the drying box (2) are both equipped with a hot air box (3), a plurality of groups of guide rollers (4) are rotatably installed inside the drying box (2), a water removal mechanism for removing water is provided at the bottom end of the left side surface of the drying box (2), and a dust removal mechanism for removing dust is provided at the top end of the right side surface of the drying box (2).

2. A galvanized steel strip surface drying device according to claim 1, characterized in that: The retractable mechanism comprises a first motor (51), a release roller (52), a second motor (53), a rotating rod (54) and a winding roller (55); a mounting plate (9) located on the left side of the drying box (2) is symmetrically welded to the top of the workbench (1); a first motor (51) is mounted on the side wall of one of the mounting plates (9) by bolts; a release roller (52) is fixedly mounted on the output shaft of the first motor (51); one end of the release roller (52) passes through the mounting plate (9) and is rotatably mounted on the inner side wall of another mounting plate (9); a support plate (154) located on the right side of the drying box (2) is welded to the top of the workbench (1) 0), a second motor (53) is fixedly mounted on the side of the support plate (10), a rotating rod (54) is fixedly mounted on the output shaft of the second motor (53), a rectangular groove (11) is opened on the top of the workbench (1) and is located on one side of the support plate (10), the bottom end of a movable plate (56) is symmetrically slidably connected inside the rectangular groove (11), one end of the rotating rod (54) passes through the support plate (10) and is rotatably connected between the movable plates (56), a winding roller (55) is sleeved on the outer wall of the rotating rod (54), and a roll-changing mechanism located inside the rectangular groove (11) is provided at the bottom end of the movable plate (56).

3. A galvanized steel strip surface drying device according to claim 2, characterized in that: The outer wall of the rotating rod (54) is rotatably connected to a limiting cylinder (12) located on both sides of the winding roller (55) through a thread, and one end of the limiting cylinder (12) is movably inserted into the two side walls of the winding roller (55).

4. A galvanized steel strip surface drying device according to claim 2, characterized in that: The roll changing mechanism comprises a first bidirectional screw (61) rotatably mounted on the inner wall of the rectangular groove (11); a third motor (62) is mounted on one side of the workbench (1) via bolts; one end of the first bidirectional screw (61) passes through the movable plate (56) and the workbench (1) and is fixedly connected to the output shaft of the third motor (62); and the first bidirectional screw (61) is rotatably connected to the movable plate (56) via a thread.

5. The galvanized steel strip surface drying device according to claim 1, characterized in that: The dewatering mechanism comprises a connecting block (71), a second bidirectional screw (72) and a water absorbing roller (73); the bottom ends of both sides of the drying box (2) are symmetrically welded with a mounting frame (13) connected to the inside thereof; the inside of the mounting frame (13) is slidably connected with a plurality of groups of connecting blocks (71); the bottom of the mounting frame (13) is rotatably connected with a second bidirectional screw (72) via a bearing seat; one end of the second bidirectional screw (72) penetrates the mounting frame (13) and the connecting block (71); ) and extends to the top outer side of the installation frame (13) and is welded with a rotating block (74), and the connecting block (71) is rotatably connected to the second bidirectional screw (72) through a thread, a feed hole (14) is opened at the left bottom end of the drying box (2), and two water-absorbing rollers (73) are arranged side by side in an upper and lower manner inside the feed hole (14), and the rotating shafts at both ends of the water-absorbing rollers (73) extend to the inside of the installation frame (13) and are rotatably connected to the side wall of the connecting block (71).

6. The galvanized steel strip surface drying device according to claim 1, characterized in that: The dust removal mechanism comprises a cleaning brush (81) and a spring (82); a discharge hole (15) is provided at the top of the right side surface of the drying box (2); a movable groove (16) is provided on the inner wall of the drying box (2) and is located on both sides of the discharge hole (15); two ends of the cleaning brush (81) are symmetrically slidably connected inside the movable groove (16); a plurality of groups of springs (82) are welded to both ends of the side away from the cleaning brush (81); the other ends of the springs (82) are respectively welded to the inner wall of the movable groove (16); and a plurality of groups of telescopic rods (83) penetrating the springs (82) are fixedly installed between the inner wall of the movable groove (16) and the cleaning brush (81).

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