Straight grain sand dull polish device

Abstract

The utility model relates to the technical field of dull polish equipment, in particular to a straight grain sand dull polish device which comprises a rack, a driving unit, a linkage unit and a dull polish unit, and the driving unit, the linkage unit and the dull polish unit are arranged on the rack. The driving unit is connected with each linkage unit; the grinding unit comprises an abrasive belt winding and unwinding mechanism, a main grinding roller, a lifting mechanism, a spraying mechanism and a drying mechanism which are arranged on the rack; the spraying mechanism is located on one side of the steel plate input direction. The drying mechanism is located on the side edge of the abrasive belt winding and unwinding mechanism. The output end of the lifting mechanism is connected with the main grinding roller; and the abrasive belt winding and unwinding mechanism is arranged above the main grinding roller. The utility model aims to provide the straight grain sand dull polish device, a plurality of mutually independent linkage units and dull polish units are matched to carry out dull polish work on a steel plate, and during working, continuous or different dull polish processes can be carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of sanding equipment, in particular to a straight-grained sanding device. Background Art

[0002] In the processing of stainless steel plates, there are production processes such as flattening, cutting, surface grinding, and surface coating of stainless steel plates. Grinding equipment is equipment used for grinding stainless steel plates, including unwinders, winders, grinding machines and other mechanical equipment, which have been widely used in stainless steel plate production workshops.

[0003] Existing sanding equipment generally adopts a single sanding method. When sanding of different processes is required, the sanding belt assembly on the sanding equipment needs to be replaced, which is not conducive to continuous sanding work and affects production efficiency. Utility Model Content

[0004] The utility model aims to provide a straight-grain sand grinding device, which can grind a steel plate through the cooperation of a plurality of mutually independent linkage units and grinding units, and can perform continuous or different types of grinding processes during operation.

[0005] To achieve this purpose, the utility model adopts the following technical solution: a straight-grain sanding device, comprising a frame and a driving unit, a linkage unit and a sanding unit arranged on the frame;

[0006] The sanding units are provided in plurality along the length direction of the frame, the linkage units are provided in plurality, and the linkage units correspond to the sanding units one by one;

[0007] The driving unit is connected to each linkage unit, and the driving unit drives the grinding unit to work through the corresponding linkage unit;

[0008] The sanding unit comprises a sanding belt retracting and releasing mechanism, a main sanding roller, a lifting mechanism, a spraying mechanism and a drying mechanism arranged on the frame;

[0009] The spray mechanism is located on one side of the steel plate input direction, and the spray mechanism is used to spray and wash the steel plate;

[0010] The drying mechanism is located on the side of the sand belt retracting and releasing mechanism, and the drying mechanism is used to dry the sand belt;

[0011] The output end of the lifting mechanism is connected to the main grinding roller, and the lifting mechanism is used to drive the main grinding roller to rise and fall in the vertical direction;

[0012] The sanding belt retracting and releasing mechanism is arranged above the main sanding roller. The sanding belt released by the unwinding end of the sanding belt retracting and releasing mechanism passes around the lower side of the main sanding roller and is then rewound by the rewinding end.

[0013] Preferably, the linkage unit includes a linkage shaft, a gearbox and a universal connecting shaft, one end of the linkage shaft is connected to the driving unit, the other end of the linkage shaft is connected to the input end of the gearbox, the output end of the gearbox is connected to one end of the universal connecting shaft, and the other end of the universal connecting shaft is connected to the main grinding roller.

[0014] Preferably, the belt retracting and unreeling mechanism comprises an unwinding roller, a rewinding roller and a tensioning roller;

[0015] The unwinding roller and the winding roller are mounted on the frame above the main grinding roller, and both the unwinding roller and the winding roller are parallel to the main grinding roller; the tensioning roller is arranged between the unwinding roller and the main grinding roller;

[0016] The linkage unit further comprises a driving gear, a driven gear and a chain, wherein the driving gear is arranged at the output end of the gearbox, the driven gear is arranged at one end of the winding roller, and the chain is wound between the driving gear and the driven gear.

[0017] Preferably, the sanding unit further comprises a clutch mechanism, which is arranged at one end of the winding roller, and comprises a clutch, a clutch cylinder and a driving plate;

[0018] The clutch is arranged at one end of the winding roller, the driven gear is arranged on the clutch, the clutch cylinder is arranged on the frame, the output end of the clutch cylinder is hinged to one end of the driving plate, and the other end of the driving plate is hinged to the frame.

[0019] Preferably, the drying mechanism includes a drying motor, a bidirectional screw rod, a guide rod, a movable seat and a heating lamp arranged on the frame; the bidirectional screw rod and the guide rod are arranged on one side of the sanding belt, the output end of the drying motor is connected to one end of the bidirectional screw rod, the movable seat is threadedly connected to the bidirectional screw rod, one end of the movable seat extends to the lower side of the guide rod, the heating lamp is arranged on the movable seat, and the heating lamp faces the sanding belt.

[0020] Preferably, the lifting mechanism includes a lifting cylinder, a slider and a synchronization shaft arranged on the frame, and two of the lifting cylinder and the slider are provided. The output end of the lifting cylinder is connected to the slider, and the slider slides with the frame in a vertical direction. The two sliders are respectively located at the two ends of the main grinding roller, and the two ends of the main grinding roller are respectively connected to the corresponding sliders, and the synchronization shaft is arranged between the two sliders.

[0021] Preferably, the sanding unit also includes a fine-tuning mechanism, which includes a linkage rod and a fine-tuning assembly arranged on both sides of the frame, and the fine-tuning assemblies on both sides are synchronously lifted and lowered through the linkage rod; the fine-tuning assembly includes a manual wheel, a tensioning wheel, a driven wheel, a belt, a right-angle commutator and a lifting head, the belt is wound between the manual wheel and the driven wheel, the tensioning wheel is arranged between the manual wheel and the driven wheel, the driven wheel is connected to one end of the right-angle commutator, the other end of the right-angle commutator is connected to the lifting head, and the lifting head is located below the corresponding slider; the manual wheels located on both sides are connected through the linkage rod.

[0022] Preferably, a latch post is provided at the upper end of the lifting head, and a pin hole corresponding to the latch post is provided at the lower end of the sliding block.

[0023] Preferably, the spray mechanism includes a spray pipeline and a spray nozzle, one end of the spray pipeline is connected to a water source, the other end of the spray pipeline is connected to the spray nozzle, and the spray nozzle is arranged on one side of the input direction of the steel plate.

[0024] The technical solution provided by the utility model may include the following beneficial effects: the steel plate is sanded by a plurality of mutually independent linkage units and sanding units. In actual operation, a single sanding unit can be driven by the corresponding linkage unit to perform sanding according to different processing requirements, so as to realize different sanding processes. When the corresponding sanding unit is driven to work, the lifting mechanism drives the main sanding roller to descend. At the same time, the sanding belt is unwound and wound through the sanding belt retracting mechanism, so that the sanding belt contacts and sands the steel plate during the movement, and corresponding sanding lines are formed on the surface of the steel plate; a spray mechanism is set on one side of the steel plate feeding to spray and rinse the sanding parts of the steel plate and the sanding belt to play a cleaning role; a drying mechanism is set on the winding side to dry the wound sanding belt, so that the sanding belt is fully dried and collected into a roll, which is convenient for the next use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is one of the three-dimensional structural schematic diagrams of an embodiment of the utility model;

[0026] Figure 2 yes Figure 1 A local enlarged schematic diagram of the middle A;

[0027] Figure 3 This is the second schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0028] Figure 4 yes Figure 3 A partial enlarged schematic diagram of point B in the middle;

[0029] Figure 5 It is one of the three-dimensional structural schematic diagrams of an embodiment of the utility model;

[0030] Figure 6 This is the second schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0031] Figure 7 It is a schematic diagram of the structure of the fine-tuning mechanism of one embodiment of the utility model.

[0032] Among them, the frame 1, the driving unit 2, the linkage unit 3, the linkage shaft 31, the gearbox 32, the universal connecting shaft 33, the driving gear 34, the driven gear 35, and the chain 36;

[0033] Sanding unit 4;

[0034] Abrasive belt retracting and unreeling mechanism 41, unreeling roller 411, reeling roller 412, tensioning roller 413;

[0035] Main grinding roller 42;

[0036] Lifting mechanism 43: lifting cylinder 431, slider 432, synchronizing shaft 433;

[0037] Drying mechanism 44, drying motor 441, bidirectional screw rod 442, guide rod 443, moving seat 444, heating lamp 445;

[0038] Clutch mechanism 45, clutch 451, clutch cylinder 452, drive plate 453;

[0039] Fine-tuning mechanism 46 , linkage rod 461 , manual wheel 462 , tensioning wheel 463 , driven wheel 464 , belt 465 , right-angle commutator 466 , and lifting head 467 . DETAILED DESCRIPTION

[0040] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0041] In the description of the present invention, it is necessary to understand that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of the features, and are used to distinguish and describe features, without distinction of order or importance.

[0042] In the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Combine the following Figures 1 to 7 As shown, an embodiment of the utility model is described.

[0045] A straight-grain sanding device comprises a frame 1 and a driving unit 2, a linkage unit 3 and a sanding unit 4 arranged on the frame 1;

[0046] The sanding units 4 are provided in plurality along the length direction of the frame 1, the linkage units 3 are provided in plurality, and the linkage units 3 correspond to the sanding units 4 one by one;

[0047] The driving unit 2 is connected to each linkage unit 3, and the driving unit 2 drives the sanding unit 4 to work through the corresponding linkage unit 3;

[0048] The sanding unit 4 includes a sanding belt retracting and releasing mechanism 41, a main sanding roller 42, a lifting mechanism 43, a spraying mechanism and a drying mechanism 44 arranged on the frame 1;

[0049] The spray mechanism is located on one side of the steel plate input direction, and the spray mechanism is used to spray and wash the steel plate;

[0050] The drying mechanism 44 is located at the side of the sand belt retracting and releasing mechanism 41, and the drying mechanism 44 is used to dry the sand belt;

[0051] The output end of the lifting mechanism 43 is connected to the main grinding roller 42, and the lifting mechanism 43 is used to drive the main grinding roller 42 to rise and fall in the vertical direction;

[0052] The sanding belt retracting and releasing mechanism 41 is disposed above the main sanding roller 42 . The sanding belt released by the unwinding end of the sanding belt retracting and releasing mechanism 41 passes around the lower side of the main sanding roller 42 and is then rewound by the rewinding end.

[0053] The utility model performs sanding work on the steel plate through the cooperation of multiple independent linkage units 3 and sanding units 4. In actual work, according to different processing requirements, the corresponding linkage unit 3 can drive a single sanding unit 4 to perform sanding, so as to realize different sanding processes. When driving the corresponding sanding unit 4 to work, the lifting mechanism 43 drives the main sanding roller 42 to descend. At the same time, the sanding belt retracting and rewinding work is realized through the sanding belt retracting and rewinding mechanism 41, so that the sanding belt contacts and sands the steel plate during the movement, and forms corresponding sanding lines on the surface of the steel plate; a spraying mechanism is set on one side of the steel plate feeding to spray and rinse the sanding parts of the steel plate and the sanding belt to play a cleaning role; a drying mechanism 44 is set on the rewinding side to dry the rewound sanding belt, so that the sanding belt is fully dried and collected into a roll, which is convenient for next use.

[0054] Preferably, the linkage unit 3 includes a linkage shaft 31, a gearbox 32 and a universal connecting shaft 33, one end of the linkage shaft 31 is connected to the drive unit 2, the other end of the linkage shaft 31 is connected to the input end of the gearbox 32, the output end of the gearbox 32 is connected to one end of the universal connecting shaft 33, and the other end of the universal connecting shaft 33 is connected to the main grinding roller 42.

[0055] Since the main grinding roller 42 needs to be lifted in the vertical direction, a universal connecting shaft 33 is provided between the output end of the gearbox 32 and the main grinding roller 42 to achieve the purpose of transmission without affecting the lifting of the main grinding roller 42. In this embodiment, a driving unit 2, a plurality of linkage shafts 31 and a gearbox 32 are used in combination, the driving method is simple, the input of the power source can be reduced, and the volume of the equipment is reduced.

[0056] Specifically, the belt retracting and unreeling mechanism 41 includes an unreeling roller 411, a reeling roller 412 and a tensioning roller 413;

[0057] The unwinding roller 411 and the winding roller 412 are mounted on the frame 1 above the main grinding roller 42, and the unwinding roller 411 and the winding roller 412 are parallel to the main grinding roller 42; the tensioning roller 413 is arranged between the unwinding roller 411 and the main grinding roller 42;

[0058] The linkage unit 3 further includes a driving gear 34 , a driven gear 35 and a chain 36 . The driving gear 34 is arranged at the output end of the gearbox 32 , the driven gear 35 is arranged at one end of the winding roller 412 , and the chain 36 is wound between the driving gear 34 and the driven gear 35 .

[0059] In the utility model, the output end of the gearbox 32 is connected to the winding roller 412 through the driving gear 34, the driven gear 35 and the chain 36 to achieve power transmission, so that the winding roller 412 and the main grinding roller 42 can keep rotating synchronously, avoiding the situation that the sanding belt is loose or pulled and broken due to the speed difference between the two rollers. The tensioning roller 413 can adjust the tension of the sanding belt to avoid the sanding belt from being loose.

[0060] Preferably, the sanding unit 4 further includes a clutch mechanism 45, which is disposed at one end of the winding roller 412, and includes a clutch 451, a clutch cylinder 452 and a driving plate 453;

[0061] The clutch 451 is arranged at one end of the winding roller 412, the driven gear 35 is arranged on the clutch 451, the clutch cylinder 452 is arranged on the frame 1, the output end of the clutch cylinder 452 is hinged to one end of the driving plate 453, and the other end of the driving plate 453 is hinged to the frame 1.

[0062] The driven gear 35 is arranged between the fixed part and the clutch part of the clutch 451. When the output end of the clutch cylinder 452 pushes the upper end of the driving plate 453 to retract inward, the clutch part and the fixed part are separated, and the clutch 451 is in a separated state. The driven gear 35 will idle under the drive of the chain, so it will not drive the winding roller 412 to rewind; when the output end of the clutch cylinder 452 pushes the upper end of the driving plate 453 to extend outward, the clutch part and the fixed part are close to each other and clamp the driven gear 35 by friction, and the winding roller 412 rotates and rewinds the sanding belt under the drive of the driven gear 35.

[0063] Specifically, the drying mechanism 44 includes a drying motor 441, a bidirectional screw rod 442, a guide rod 443, a movable seat 444 and a heating lamp 445 arranged on the frame 1; the bidirectional screw rod 442 and the guide rod 443 are mounted on one side of the sanding belt, the output end of the drying motor 441 is connected to one end of the bidirectional screw rod 442, the movable seat 444 is threadedly connected to the bidirectional screw rod 442, one end of the movable seat 444 extends to the lower side of the guide rod 443, and the heating lamp 445 is arranged on the movable seat 444, and the heating lamp 445 faces the sanding belt.

[0064] The bidirectional screw rod 442 is driven to rotate by the drying motor 441, and the bidirectional thread on the bidirectional screw rod 442 can drive the moving seat 444 to move along the width direction of the sanding belt, so that the heating lamp 445 can evenly illuminate the surface of the sanding belt and fully dry the sanding belt. The guide rod 443 is arranged on the side of the bidirectional screw rod 442 to guide the moving seat 444 to prevent the moving seat 444 from deviating.

[0065] Preferably, the lifting mechanism 43 includes a lifting cylinder 431, a slider 432 and a synchronization shaft 433 arranged on the frame 1. The lifting cylinder 431 and the slider 432 are both provided with two, the output end of the lifting cylinder 431 is connected to the slider 432, the slider 432 slides with the frame 1 in the vertical direction, the two sliders 432 are respectively located at the two ends of the main grinding roller 42, the two ends of the main grinding roller 42 are respectively connected to the corresponding sliders 432, and the synchronization shaft 433 is arranged between the two sliders 432.

[0066] The lifting cylinders 431 on both sides drive the corresponding sliders 432 to move up and down, thereby driving the main grinding roller 42 to move up and down. The synchronous shaft 433 can keep the sliders 432 on both sides moving up and down synchronously to avoid the main grinding roller 42 from tilting.

[0067] Specifically, the sanding unit 4 also includes a fine-tuning mechanism 46, which includes a linkage rod 461 and fine-tuning components arranged on both sides of the frame 1, and the fine-tuning components on both sides are synchronously lifted and lowered through the linkage rod 461; the fine-tuning component includes a manual wheel 462, a tensioning wheel 463, a driven wheel 464, a belt 465, a right-angle commutator 466 and a lifting head 467, the belt 465 is wound between the manual wheel 462 and the driven wheel 464, the tensioning wheel 463 is arranged between the manual wheel 462 and the driven wheel 464, the driven wheel 464 is connected to one end of the right-angle commutator 466, and the other end of the right-angle commutator 466 is connected to the lifting head 467, and the lifting head 467 is located below the corresponding slider 432; the manual wheels 462 located on both sides are connected through the linkage rod 461.

[0068] At the same time, a latch column is disposed at the upper end of the lifting head 467, and a pin hole corresponding to the latch column is disposed at the lower end of the sliding block 432.

[0069] The manual wheel 462 drives the driven wheel 464 to rotate through the belt 465, and the right-angle commutator 466 converts the rotational motion of the driven wheel 464 into the lifting motion of the lifting head 467. The manual wheel 462 can be used to adjust the height of the lifting head 467, and the lifting head 467 can limit the lower limit of the fall of the slider 432. Lifting heads 467 of different heights correspond to different falling positions of the main grinding roller 42. By adjusting the height of the falling position of the main grinding roller 42, the friction degree between the sanding belt and the steel plate can be adjusted, so that the sanding belt can form lines of different depths on the steel plate.

[0070] Preferably, the spray mechanism includes a spray pipeline and a spray nozzle, one end of the spray pipeline is connected to a water source, the other end of the spray pipeline is connected to the spray nozzle, and the spray nozzle is arranged on one side of the input direction of the steel plate.

[0071] Other structures and operations of a double-sided winding device according to an embodiment of the utility model are known to ordinary technicians in the field and will not be described in detail here.

[0072] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0073] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A straight-grain sanding device, characterized in that: It comprises a frame, and a driving unit, a linkage unit and a grinding unit arranged on the frame; The sanding units are provided in plurality along the length direction of the frame, the linkage units are provided in plurality, and the linkage units correspond to the sanding units one by one; The driving unit is connected to each linkage unit, and the driving unit drives the grinding unit to work through the corresponding linkage unit; The sanding unit comprises a sanding belt retracting and releasing mechanism, a main sanding roller, a lifting mechanism, a spraying mechanism and a drying mechanism arranged on the frame; The spray mechanism is located on one side of the steel plate input direction, and the spray mechanism is used to spray and wash the steel plate; The drying mechanism is located on the side of the sand belt retracting and releasing mechanism, and the drying mechanism is used to dry the sand belt; The output end of the lifting mechanism is connected to the main grinding roller, and the lifting mechanism is used to drive the main grinding roller to rise and fall in the vertical direction; The sanding belt retracting and releasing mechanism is arranged above the main sanding roller. The sanding belt released by the unwinding end of the sanding belt retracting and releasing mechanism passes around the lower side of the main sanding roller and is then rewound by the rewinding end.

2. A straight-grain sanding device according to claim 1, characterized in that: The linkage unit includes a linkage shaft, a gearbox and a universal connecting shaft, one end of the linkage shaft is connected to the driving unit, the other end of the linkage shaft is connected to the input end of the gearbox, the output end of the gearbox is connected to one end of the universal connecting shaft, and the other end of the universal connecting shaft is connected to the main grinding roller.

3. A straight-grain sanding device according to claim 2, characterized in that: The belt retracting and unreeling mechanism comprises an unwinding roller, a rewinding roller and a tensioning roller; The unwinding roller and the winding roller are mounted on the frame above the main grinding roller, and both the unwinding roller and the winding roller are parallel to the main grinding roller; the tensioning roller is arranged between the unwinding roller and the main grinding roller; The linkage unit further comprises a driving gear, a driven gear and a chain, wherein the driving gear is arranged at the output end of the gearbox, the driven gear is arranged at one end of the winding roller, and the chain is wound between the driving gear and the driven gear.

4. A straight-grain sanding device according to claim 3, characterized in that: The sanding unit further comprises a clutch mechanism, which is arranged at one end of the winding roller and comprises a clutch, a clutch cylinder and a driving plate; The clutch is arranged at one end of the winding roller, the driven gear is arranged on the clutch, the clutch cylinder is arranged on the frame, the output end of the clutch cylinder is hinged to one end of the driving plate, and the other end of the driving plate is hinged to the frame.

5. A straight-grain sanding device according to claim 1, characterized in that: The drying mechanism includes a drying motor, a bidirectional screw rod, a guide rod, a movable seat and a heating lamp arranged on the frame; the bidirectional screw rod and the guide rod are mounted on one side of the sanding belt, the output end of the drying motor is connected to one end of the bidirectional screw rod, the movable seat is threadedly connected to the bidirectional screw rod, one end of the movable seat extends to the lower side of the guide rod, the heating lamp is arranged on the movable seat, and the heating lamp faces the sanding belt.

6. A straight-grain sanding device according to claim 1, characterized in that: The lifting mechanism includes a lifting cylinder, a slider and a synchronization shaft arranged on the frame. There are two lifting cylinders and two sliders. The output end of the lifting cylinder is connected to the slider. The slider and the frame slide in a vertical direction. The two sliders are respectively located at the two ends of the main grinding roller. The two ends of the main grinding roller are respectively connected to the corresponding sliders. The synchronization shaft is arranged between the two sliders.

7. A straight-grain sanding device according to claim 6, characterized in that: The sanding unit also includes a fine-tuning mechanism, which includes a linkage rod and fine-tuning components arranged on both sides of the frame, and the fine-tuning components on both sides are synchronously lifted and lowered through the linkage rod; the fine-tuning component includes a manual wheel, a tensioning wheel, a driven wheel, a belt, a right-angle commutator and a lifting head, the belt is wound between the manual wheel and the driven wheel, the tensioning wheel is arranged between the manual wheel and the driven wheel, the driven wheel is connected to one end of the right-angle commutator, the other end of the right-angle commutator is connected to the lifting head, and the lifting head is located below the corresponding slider; the manual wheels located on both sides are connected through the linkage rod.

8. A straight-grain sanding device according to claim 7, characterized in that: The upper end of the lifting head is provided with a latch column, and the lower end of the sliding block is provided with a pin hole corresponding to the latch column.

9. A straight-grain sanding device according to claim 1, characterized in that: The spray mechanism includes a spray pipeline and a spray nozzle, one end of the spray pipeline is connected to a water source, the other end of the spray pipeline is connected to the spray nozzle, and the spray nozzle is arranged on one side of the input direction of the steel plate.

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