Spraying device for stainless steel production

Abstract

The invention relates to the technical field of stainless steel band machining, in particular to a spraying device for stainless steel production. Comprising a machining frame internally provided with a machining channel; the two spraying structures are symmetrically arranged on the front side and the rear side of the middle of the machining frame, and the stainless steel base material penetrates through the space between the two spraying structures; the conveying structure takes two groups of symmetrically arranged conveying structures as a unit, and at least two groups of conveying structure units are uniformly arranged in the length direction of the processing channel; and the driving structure is arranged in the processing frame. While the conveying structure is used for adaptively conveying the stainless steel base material, the spraying structure is automatically controlled to be opened and closed through the change characteristics when the conveying structure is matched with the conveying structure, so that the spraying operation is accurately matched with the conveying rhythm of the stainless steel base material, the uniformity and consistency of a coating can be guaranteed, and the spraying efficiency is improved. And moreover, empty spraying of the coating when no stainless steel base material passes through is effectively avoided, coating waste is reduced, and the spraying quality and economical efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of stainless steel strip processing technology, and in particular to a spraying device for stainless steel production. Background Technology

[0002] During the production of stainless steel, the surface of its strips or plates often needs to be sprayed to achieve anti-corrosion, decorative, or specific functional requirements. In the existing technology, the conveying process of stainless steel substrate is not continuous, and the start and stop operation of the spraying equipment still mainly relies on manual control; and due to the delay and judgment error in manual response, it is easy to cause quality problems such as uneven spraying, missed spraying, or over-spraying, affecting the consistency of the coating.

[0003] To avoid such defects, continuous spraying is now commonly used, meaning that the spraying equipment is basically kept running after startup to ensure complete coverage and processing effect on the stainless steel substrate. However, this continuous operation mode also brings new problems - during substrate conveying intervals or material interruption periods, spraying continues, resulting in unnecessary consumption of paint and a significant increase in production costs.

[0004] Existing technologies have attempted to introduce sensor detection systems to automatically identify the position of the substrate to achieve synchronous opening and closing of the spraying device. While this can theoretically achieve precise control, in actual spraying environments, complex conditions such as paint splashing, dust accumulation, and mechanical vibration often pose a threat to the stability and durability of high-precision sensors. In other words, the sensors are easily contaminated or damaged, leading to frequent failures. This not only affects the reliability of automatic control but also increases the maintenance costs of the equipment. Summary of the Invention

[0005] In view of the above-mentioned defects in the prior art, the present invention provides a stainless steel production spraying device that can effectively reduce paint consumption while ensuring production efficiency and coating quality, aiming to balance the continuity of spraying operations, the economy of paint use, and the reliability of the control structure.

[0006] The technical implementation of the present invention is as follows: a spraying device for stainless steel production, comprising: a processing frame, wherein a processing channel for a stainless steel substrate to pass through is provided inside;

[0007] Two sets of spraying structures are symmetrically arranged on the front and back sides of the middle of the processing frame, and the stainless steel substrate passes through the two sets of spraying structures.

[0008] The transport structure consists of two symmetrically arranged transport structures as a unit. At least two transport structure units are evenly arranged along the length of the processing channel to drive the stainless steel substrate through the processing frame in a vertical state.

[0009] And a drive structure, located inside the processing frame, for providing power to the transport structure;

[0010] Each spraying structure includes: a spraying frame, which is fixedly connected to the inner wall of the processing frame;

[0011] At least two sets of nozzles are uniformly and fixedly connected to the spray frame along the length of the spray frame, and the nozzles are connected to the inside of the spray frame through mating holes;

[0012] The nozzles have a flat nozzle structure, and the spraying range is long and narrow, with seamless connection between the spraying ranges of each nozzle.

[0013] And a control tube, which is rotatably connected inside the spray frame, with its bottom passing through the spray frame and the processing frame, for connecting the pump and accessing the paint;

[0014] The control tube has a long strip-shaped docking groove, the length of which can cover all the docking holes. When the control tube is rotated to align the docking groove with the docking hole, the spraying structure is opened; when misaligned, the spraying structure is closed.

[0015] Each transport structure includes: two mounting plates, which are slidably connected to the upper and lower sides of the processing frame;

[0016] The transport rollers are rotatably connected between the mounting plates;

[0017] And an adjustment spring, which is fixedly connected between the mounting plate and the processing frame;

[0018] The adjusting spring keeps the two transport rollers in the same transport structure unit in contact with each other, and squeezes the two transport rollers apart as the stainless steel substrate passes through.

[0019] It also includes: a transmission structure, located between the transport structure and the spraying structure, which converts the displacement changes of the mounting plate into the rotational motion of the control tube;

[0020] The transmission structure is controlled by a set of transport structure units located at the nearest position on the feed side of the spraying structure.

[0021] Furthermore, the transmission structure includes: a control block, which is fixedly connected to the mounting plate and has an inwardly concave bevel at its end;

[0022] Install the rails and fix them inside the processing frame;

[0023] The rack is slidably connected to the mounting rail.

[0024] The first return spring is fixedly connected between the rack and the mounting rail, and is sleeved on the mounting rail for returning the rack to its original position.

[0025] The main gear is rotatably connected to the machining frame and meshes with the rack.

[0026] The secondary gear is fixedly connected to the outer periphery of the control tube and meshes with the primary gear. The primary gear has more teeth than the secondary gear to amplify the transmission angle.

[0027] And a reset torsion spring, which is fixedly connected between the main gear and the machining frame, and is sleeved on the rotating shaft of the main gear. Its elastic coefficient is less than that of the first reset spring.

[0028] Furthermore, the drive structure includes: a first motor, which is fixedly connected inside the processing frame;

[0029] Two parallel main drive shafts are rotatably connected within the machining frame;

[0030] The first plate is fixedly connected inside the processing frame;

[0031] The second support plate is slidably connected within the processing frame;

[0032] In each group of transport structure units, the main drive shafts on both sides are respectively connected to the transport structure on the corresponding side by a first support plate and a second support plate, and the second support plate is rotatably connected to the corresponding transport roller.

[0033] The spline shaft assembly consists of two shafts connected by splines, one of which is rotatably connected to the first support plate and the other is rotatably connected to the second support plate. The spline shaft assembly allows for axial length variation while transmitting torque.

[0034] The first bevel gear set consists of two meshing bevel gears, one of which is fixedly connected to the main drive shaft, and the other is rotatably connected to the first support plate and is coaxially fixed with the shaft on the side of the first support plate in the spline shaft set.

[0035] The second bevel gear set consists of two meshing bevel gears, one of which is rotatably connected to the second support plate and coaxially fixed with the shaft on the side of the second support plate in the spline shaft set, and the other is fixedly connected to the rotating shaft of the conveyor roller.

[0036] Each set of first and second support plates is provided with the splined shaft set, the first bevel gear set and the second bevel gear set between the main drive shaft on the corresponding side of each set;

[0037] The first auxiliary shaft is rotatably connected within the machining frame;

[0038] The first transmission belt assembly is located between the first auxiliary shaft and one of the main transmission shafts;

[0039] And a reverse gear set, which consists of two meshing gears, one of which is fixedly connected to a first auxiliary shaft and the other is fixedly connected to another main drive shaft.

[0040] Furthermore, it also includes: a centering structure, located within the processing channel and on the feeding side of the transport structure unit that cooperates with the transmission structure, used to center and adjust the position of the stainless steel substrate;

[0041] The central structure includes: two sets of bidirectional screws, which are connected to the machining frame in parallel rotation, with the threads on both sides having opposite directions;

[0042] Two sets of brackets are slidably connected in the processing frame and threaded between two sets of bidirectional screws. The two sets of brackets are respectively engaged with threaded sections with different directions of rotation on each bidirectional screw.

[0043] The limiting roller is rotatably connected to the bracket and makes rolling contact with the stainless steel substrate;

[0044] The fourth transmission belt assembly is located between the two sets of bidirectional screws to achieve synchronous transmission;

[0045] The protective frame is fixedly connected inside the processing frame and covers the outside of the fourth transmission belt group;

[0046] The handle is rotatably connected to the outside of the machining frame and is coaxially fixed with one of the bidirectional screws.

[0047] Furthermore, it also includes: an auxiliary transport structure, located within the processing channel, used to provide auxiliary transport and upper and lower limit functions;

[0048] The auxiliary transport structure includes at least six sets of auxiliary rollers, which are rotatably connected to the upper and lower sides of the processing channel and arranged along the length of the channel.

[0049] The second transmission belt set is located between the two adjacent sets of auxiliary rollers on the upper side;

[0050] The second auxiliary shaft is rotatably connected inside the machining frame;

[0051] And the third bevel gear set, which consists of four bevel gears, two of which are fixedly connected in opposite directions to the second auxiliary shaft, and the other two are fixedly connected to the shaft of the main drive shaft and the shaft of one of the upper auxiliary rollers, respectively. The bevel gear on the main drive shaft meshes with one of the bevel gears on the second auxiliary shaft, and the bevel gear on the auxiliary roller meshes with the other bevel gear on the second auxiliary shaft. This is used to adjust the conveying direction of the auxiliary rollers on the stainless steel substrate to be consistent with that of the transport rollers.

[0052] Furthermore, it also includes: two sets of enclosure structures, located on both sides of the spraying structure, used to enclose the spraying area;

[0053] Each enclosure structure includes: a mounting frame, which is fixedly connected inside the processing frame;

[0054] And two layers of bristles, which are fixedly connected to both sides of the mounting bracket;

[0055] The two layers of bristles are arranged in an alternating pattern, and their coverage spans the entire cross section of the processing channel. The stainless steel substrate passes through the gaps between the bristles, and the bristles can undergo elastic deformation.

[0056] Furthermore, it also includes: a dryer, which is fixedly connected to the front and rear sides inside the processing frame to promote coating curing;

[0057] The dryer is located at the closest position to the discharge side of the sprayed structure.

[0058] Furthermore, it also includes: two sets of cleaning structures, located on the upper and lower sides of the processing frame, correspondingly covering the auxiliary rollers in the spraying area;

[0059] Each cleaning structure includes: a mounting frame, which is fixedly connected to the processing frame and covers the auxiliary roller on the corresponding side;

[0060] The mounting shafts are rotatably connected within the mounting frame, and their number corresponds to the auxiliary rollers being covered.

[0061] Cleaning rollers, mounted on each mounting shaft and in contact with the surface of the corresponding auxiliary rollers, are used to remove paint adhering to the surface of the cleaning rollers.

[0062] The third transmission belt set is located between two adjacent sets of mounting shafts;

[0063] The second motor is fixedly connected inside the mounting frame, and its output shaft is coaxially connected to one of the mounting shafts.

[0064] Furthermore, the cleaning rollers are detachably and fixedly connected to each mounting shaft;

[0065] Each cleaning structure also includes a cover plate, which slides onto the mounting frame to open and close the operating space within the mounting frame.

[0066] The present invention has the following advantages: While using a transport structure to transport stainless steel substrates, the present invention will also automatically control the opening and closing of the spraying structure by using the changing characteristics of the structure when it is in conjunction with the transport structure, so that the spraying operation is precisely matched with the transport rhythm of the stainless steel substrate. This not only ensures that the coating is uniform and consistent, but also effectively avoids the dry spraying of paint when there is no stainless steel substrate passing by, reduces paint waste, and improves spraying quality and economy.

[0067] The transmission structure employs a transmission mechanism involving a control block, rack, main gear, and secondary gear. This mechanism enables precise and rapid initiation of spraying once the stainless steel substrate reaches the preset position. Furthermore, the design utilizes the force difference between the return torsion spring and the first return spring to achieve a delayed shut-off function, ensuring complete coating coverage at the tail end of the stainless steel substrate. In short, the transmission structure enables precise coating application, ensuring a uniform and consistent coating, and reducing wasted dry spraying.

[0068] The drive structure uses a multi-stage bevel gear set and a spline shaft set for coordinated transmission, which ensures stable power output while giving the transport rollers the freedom of movement perpendicular to the stainless steel substrate. The dual main drive shafts achieve precise synchronous reverse rotation through a reverse gear set, ensuring smooth and slip-free conveying of the stainless steel substrate.

[0069] The auxiliary transport structure significantly improves the positional accuracy of the stainless steel substrate within the processing channel through the synergistic effect of upper and lower limit switches and auxiliary conveying; it also effectively disperses traction force and avoids local stress concentration, thereby enhancing the conveying stability of the stainless steel substrate. It is particularly suitable for high-intensity continuous production conditions, providing a reliable guarantee for uniform spraying; in addition, its power comes from the drive structure, which will realize efficient use of energy, improve conveying quality and reduce energy consumption.

[0070] The use of a dryer and enclosure structure will improve the working environment, protect the internal structure of the invention from contamination, enhance coating surface quality, reduce paint waste, and improve the controllability and cleanliness of the spraying process. The cleaning structure, through real-time cleaning and modular maintenance, ensures the long-term precise operation of the auxiliary rollers in the spraying area, while also improving the sustainable operation capability and production efficiency of the invention. Attached Figure Description

[0071] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0072] Figure 2 This is a schematic diagram of the internal structure of the present invention after cross-section of the processing frame.

[0073] Figure 3 This is an overall schematic diagram of the components in the spraying structure of the present invention.

[0074] Figure 4 This is a schematic diagram showing the separation of some components in the spraying structure of the present invention.

[0075] Figure 5 This is a schematic diagram showing the positional distribution of the transport structure, drive structure, and auxiliary transport structure of the present invention.

[0076] Figure 6 This is a schematic diagram showing the coordination relationship between the transportation structure, transmission structure, and spraying structure of the present invention.

[0077] Figure 7 This is a diagram showing the separation of the mating relationships of the transmission structure of the present invention.

[0078] Figure 8 This is a schematic diagram showing the cooperation relationship between the transport structure and the drive structure of the present invention.

[0079] Figure 9 This is a schematic diagram showing the separation of components in the central structure of the present invention.

[0080] Figure 10 This is a schematic diagram showing the cooperation relationship between part of the transportation structure and the auxiliary drive structure of the present invention.

[0081] Figure 11 This is a schematic diagram showing the positional relationship between the enclosure structure and the spraying structure of the present invention.

[0082] Figure 12 This is a schematic diagram of the internal structure of the installation frame after sectional view and cleaning.

[0083] Meaning of reference numerals in the figure: 11: Processing frame, 1101: Processing channel, 12: Spraying frame, 13: Nozzle, 1301: Docking hole, 14: Control tube, 1401: Docking groove, 21: Mounting plate, 22: Transport roller, 23: Adjustment spring, 24: Control block, 2401: Inclined surface, 25: Mounting rail, 26: Rack, 27: Main gear, 28: Secondary gear, 29: First return spring, 210: Return torsion spring, 31: First motor, 32: Main drive shaft, 33: First support plate, 34: First bevel gear set, 35: Splined shaft set, 36: Second support plate, 37: Second bevel gear set, 38: First auxiliary shaft, 39: First transmission belt set, 310: Reverse gear set, 311: Bidirectional screw, 312: Bracket, 313: Limiting roller, 314: Fourth transmission belt set, 315: Protective frame, 316: Handle, 41: Auxiliary roller, 42: Second transmission belt set, 43: Second auxiliary shaft, 44: Third bevel gear set, 51: Mounting frame, 52: Brush bristles, 53: Dryer, 61: Mounting frame, 62: Cover plate, 63: Mounting shaft, 64: Cleaning roller, 65: Third transmission belt set, 66: Second motor. Detailed Implementation

[0084] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0085] Example: A spraying device for stainless steel production, combined with Figures 1-5As shown, it includes: a processing frame 11, which has a processing channel 1101 inside for a stainless steel substrate to pass through; two sets of spraying structures, symmetrically arranged on the front and rear sides of the middle of the processing frame 11, through which the stainless steel substrate passes to be sprayed on the front and rear sides of the stainless steel substrate simultaneously; a transport structure, with two symmetrically arranged transport structures as one unit, and four transport structure units evenly arranged along the length of the processing channel 1101, for driving the stainless steel substrate to pass through the processing frame 11 in a vertical state, in this embodiment the direction is from right to left; and a driving structure, located inside the processing frame 11, for providing power to the transport structure.

[0086] Each spraying structure includes: a spraying frame 12, fixedly installed on the inner wall of the processing frame 11; four sets of nozzles 13, evenly fixedly installed on the spraying frame 12 along its length, the nozzles 13 communicating with the interior of the spraying frame 12 through the docking holes 1301; the nozzles 13 adopt a flat-nozzle structure, the spraying range is long and narrow, and the spraying ranges of each nozzle 13 are seamlessly connected, thus fully covering the width of the stainless steel substrate; a control pipe 14, rotatably installed inside the spraying frame 12, its bottom passing through the spraying frame 12 and the processing frame 11, used to connect the pump and access the paint; the control pipe 14 has a long strip-shaped docking groove 1401, the length of which can cover all the docking holes 1301, when the control pipe 14 rotates to the docking groove 1401 and the docking hole 1301 are aligned, the spraying structure is opened, and the paint can be sprayed out through the nozzles 13, and it is closed when misaligned;

[0087] Each transport structure includes: two mounting plates 21, which are slidably mounted on the upper and lower sides of the inside of the processing frame 11 respectively; transport rollers 22, which are rotatably mounted between the mounting plates 21; and adjusting springs 23, which are fixedly mounted between the mounting plates 21 and the processing frame 11. The adjusting springs 23 make the two transport rollers 22 in the same transport structure unit fit together, and when the stainless steel substrate passes through, they will squeeze the two transport rollers 22 apart.

[0088] It also includes: a transmission structure, located between the transport structure and the spraying structure, which converts the displacement change of the mounting plate 21 into the rotational motion of the control tube 14, thereby accurately controlling the opening and closing of the spraying structure according to the conveying status of the stainless steel substrate; the transmission structure is controlled by a set of transport structure units at the nearest position on the feeding side of the spraying structure. In this embodiment, the transport structure unit at the nearest position on the right side of the spraying structure cooperates with the transmission structure to trigger the rotation of the control tube 14.

[0089] During operation, paint and a pump are connected to the control pipe 14, and the pump and drive structure are started. The stainless steel substrate is driven by the transport roller 22 through the processing frame 11. During the process, when the head end of the stainless steel substrate passes through the transport structure, it pushes the two transport rollers 22 apart until it reaches the transport structure unit on the right side of the spraying structure. This compresses the adjustment spring 23, separates the mounting plate 21, and drives the control pipe 14 to rotate through the transmission structure, so that the docking groove 1401 and the docking hole 1301 are aligned. The spraying structure is started, and the paint is evenly sprayed onto the surface of the stainless steel substrate. After the tail end of the stainless steel substrate leaves the transport structure unit, the adjustment spring 23 is reset, the transmission structure rotates the control pipe 14 in the opposite direction, and the spraying structure is turned off.

[0090] Therefore, while using a transport structure to transport stainless steel substrates, this device will also automatically control the opening and closing of the spraying structure by observing the changes in its interaction with the transport structure. This ensures that the spraying operation is precisely matched with the transport rhythm of the stainless steel substrates, which not only guarantees a uniform coating but also effectively avoids dry spraying of paint when no stainless steel substrates are passing by, reducing paint waste and improving spraying quality and economy.

[0091] Combination Figure 2 , Figure 5 , Figure 6 and Figure 7 As shown, there are four sets of transmission structures between the spraying structure and the transport structure unit on its right, respectively arranged between the upper and lower sides of the two spraying structures and the upper and lower sides of the transport structure unit.

[0092] Each transmission structure includes: a control block 24, fixedly mounted on the mounting plate 21, with an inwardly concave inclined surface 2401 at its end to improve the stability of the transmission engagement; a mounting rail 25, fixedly mounted inside the processing frame 11; a rack 26, slidably mounted on the mounting rail 25; a first return spring 29, fixedly mounted between the rack 26 and the mounting rail 25, passing through the mounting rail 25 for resetting the rack 26; a main gear 27, rotatably mounted inside the processing frame 11, meshing with the rack 26; a secondary gear 28, fixedly mounted on the outer periphery of the control tube 14, meshing with the main gear 27, the main gear 27 having more teeth than the secondary gear 28, thereby amplifying the transmission angle and allowing the control tube 14 to obtain a larger rotation angle; and a return torsion spring 210, fixedly mounted between the main gear 27 and the processing frame 11, passing through the shaft of the main gear 27, with an elastic coefficient less than that of the first return spring.

[0093] When the stainless steel substrate moves to the transport structure unit on the right side of the spraying structure, the two transport rollers 22 separate from each other, the adjusting spring 23 is compressed, and the mounting plate 21 drives the control block 24 to move. The control block 24 pushes the rack 26 to slide along the mounting track 25 through the inclined surface 2401, compressing the first return spring 29. The movement of the rack 26 will drive the main gear 27 to rotate, which in turn drives the control tube 14 to rotate through the secondary gear 28, so that the docking groove 1401 and the docking hole 1301 are fully aligned, and the spraying structure is automatically opened. During this process, the return torsion spring 210 returns to its natural shape.

[0094] After the stainless steel substrate is removed from the transport structure unit, the adjusting spring 23 resets, driving the mounting plate 21 and control block 24 back to their original positions. The control block 24 disengages from the rack 26. The first reset spring 29 then releases, pushing the rack 26 to reset. The rack 26 drives the main gear 27 to reverse. At this time, the reset torsion spring 210 will deform due to the rotation of the main gear 27, but its force is less than that of the first reset spring 29. Therefore, it can only delay the reverse speed of the main gear 27, thereby causing the control tube 14 to close slowly, realizing the delayed closing function of the spraying structure. This function will reserve sufficient time for the tail end of the stainless steel substrate to enter the spraying area, effectively ensuring the spraying quality of the entire section of the stainless steel substrate.

[0095] The transmission structure employs a transmission mechanism between control block 24, rack 26, main gear 27, and secondary gear 28. This mechanism enables precise and rapid initiation of spraying after the stainless steel substrate reaches the preset position. Furthermore, the design utilizes the force difference between the return torsion spring 210 and the first return spring 29 to achieve a delayed shut-off function, ensuring complete coating coverage at the tail end of the stainless steel substrate. In other words, the transmission structure enables precise application of the coating, ensuring a uniform and consistent coating while reducing wasted dry spraying.

[0096] Combination Figure 2 , Figure 5 and Figure 8As shown, the drive structure includes: a first motor 31, fixedly installed inside the processing frame 11; two parallel main drive shafts 32, rotatably installed inside the processing frame 11; a first support plate 33, fixedly installed inside the processing frame 11; and a second support plate 36, slidably installed inside the processing frame 11. In each transport structure unit, a first support plate 33 and a second support plate 36 are respectively provided between the main drive shafts 32 on both sides and the transport structure on the corresponding side. The second support plate 36 is rotatably connected to the corresponding transport roller 22. A spline shaft assembly 35 consists of two shafts connected by splines, one of which is rotatably connected to the first support plate 33 and the other is rotatably connected to the second support plate 36. The spline shaft assembly 35 allows for axial length variation while transmitting torque. A first bevel gear assembly 34 consists of two meshing bevel gears, one of which is fixedly connected to the main drive shaft 32 and the other is rotatably connected to the first support plate 36. The first support plate 33 and the second support plate 36 are coaxially fixed to the shaft on the side of the first support plate 33 in the splined shaft assembly 35; the second bevel gear assembly 37 is composed of two meshing bevel gears, one of which is rotatably connected to the second support plate 36 and coaxially fixed to the shaft on the side of the second support plate 36 in the splined shaft assembly 35, and the other is fixedly connected to the rotating shaft of the transport roller 22; the splined shaft assembly 35, the first bevel gear assembly 34 and the second bevel gear assembly 37 are provided between the first support plate 33 and the second support plate 36 and the main drive shaft 32 on the corresponding side of each assembly; the first auxiliary shaft 38 is rotatably installed in the processing frame 11; the first transmission belt assembly 39 is provided between the first auxiliary shaft 38 and one of the main drive shafts 32 to achieve synchronous transmission; the reverse gear assembly 310 is composed of two meshing gears, one of which is fixedly connected to the first auxiliary shaft 38 and the other is fixedly connected to another main drive shaft 32 to transmit power in the reverse direction.

[0097] During operation, the first motor 31 drives the main drive shaft 32 to rotate, transmitting power to the splined shaft assembly 35 via the first bevel gear set 34, and then driving the transport roller 22 to rotate via the second bevel gear set 37. Simultaneously, through the transmission of the first transmission belt set 39 and the reverse gear set 310, the two main drive shafts 32 rotate in opposite directions, thereby driving the two transport rollers 22 in the same transport structure unit to rotate in opposite directions, achieving stable conveying of the stainless steel substrate. The design of the splined shaft assembly 35 allows the transport roller 22 to adaptively adjust its position when clamping stainless steel substrates of different thicknesses, ensuring a continuous and stable transmission effect.

[0098] The drive structure uses a multi-stage bevel gear set and a spline shaft set 35 for coordinated transmission, which ensures stable power output while giving the transport roller 22 a degree of freedom of movement perpendicular to the stainless steel substrate. The dual main drive shafts 32 achieve precise synchronous reverse rotation through the reverse gear set 310, ensuring smooth and slip-free conveying of the stainless steel substrate.

[0099] Combination Figure 2 , Figure 6 and Figure 9 As shown, it also includes: a central structure, which is located in the processing channel 1101 and on the feeding side of the transport structure unit that cooperates with the transmission structure, that is, on the right side of the transport structure unit. It is used to adjust the position of the stainless steel substrate before it enters the transport structure unit, so as to ensure that the stainless steel substrate can act symmetrically on the two sets of transport rollers 22 in the unit, thereby accurately triggering the opening and closing of the spraying unit through the transmission structure.

[0100] The central structure includes: two sets of bidirectional screws 311, which are rotatably mounted in parallel within the processing frame 11, with opposite thread directions on both sides; two sets of brackets 312, which are slidably mounted within the processing frame 11 and threaded between the two sets of bidirectional screws 311, with each set of brackets 312 engaging with different thread sections on each bidirectional screw 311; a limiting roller 313, which is rotatably mounted on the brackets 312 and rolls in contact with the stainless steel substrate; a fourth transmission belt group 314, which is located between the two sets of bidirectional screws 311 to achieve synchronous transmission; a protective frame 315, which is fixedly mounted within the processing frame 11 and covers the fourth transmission belt group 314 for protection; and a handle 316, which is rotatably mounted on the outside of the processing frame 11 and coaxially fixed with one of the bidirectional screws 311.

[0101] Before processing different batches of stainless steel substrates, the handle 316 can be rotated according to their thickness to drive the bidirectional screw 311 to rotate synchronously, causing the two sets of supports 312 to move in opposite directions, thereby adjusting the distance between the two limiting rollers 313. This adjustment process always keeps the centerline position unchanged, ensuring that after the stainless steel substrate is input and guided by the limiting rollers 313, it can enter the transport structure unit in a precisely centered position, effectively optimizing the matching accuracy between the transmission structure and the transport structure, and ensuring the reliability of the opening and closing control of the spraying structure.

[0102] Combination Figure 1 , Figure 2 , Figure 5 and Figure 10 As shown, it also includes: an auxiliary transport structure, located within the processing channel 1101, for providing auxiliary transport and upper and lower limit functions;

[0103] The auxiliary transport structure includes: twelve sets of auxiliary rollers 41, which are rotatably installed on the upper and lower sides of the processing channel 1101 and arranged along the length of the channel; a second transmission belt set 42, which is located between two adjacent sets of auxiliary rollers 41 on the upper side to realize synchronous power transmission; a second auxiliary shaft 43, which is rotatably installed in the processing frame 11; and a third bevel gear set 44, which consists of four bevel gears, two of which are fixedly connected in opposite directions to the second auxiliary shaft 43, and the other two are fixedly connected to the shaft of the main drive shaft 32 and the shaft of one of the upper auxiliary rollers 41, respectively. The bevel gear on the main drive shaft 32 meshes with one of the bevel gears on the second auxiliary shaft 43, and the bevel gear on the auxiliary roller 41 meshes with the other bevel gear on the second auxiliary shaft 43, so as to adjust the rotation direction while transmitting power, and ensure that the conveying direction of the auxiliary roller 41 to the stainless steel substrate is consistent with that of the transport roller 22.

[0104] During operation, the first motor 31 drives the main drive shaft 32 to rotate, and the power is transmitted to the second auxiliary shaft 43 through the third bevel gear set 44, and then to the second drive belt set 42 to drive all the upper auxiliary rollers 41 to operate synchronously. While providing conveying power, the auxiliary rollers 41 form a limiting channel through their vertical arrangement, which effectively constrains the vertical displacement of the stainless steel strip and prevents the stainless steel substrate from deviating.

[0105] The auxiliary transport structure significantly improves the positional accuracy of the stainless steel substrate within the processing channel 1101 through the synergistic effect of upper and lower limit switches and auxiliary conveying; it also effectively disperses traction force and avoids local stress concentration, thereby enhancing the conveying stability of the stainless steel substrate. It is particularly suitable for high-intensity continuous production conditions and provides a reliable guarantee for uniform spraying. In addition, its power source is the drive structure, which will realize the efficient use of energy, improve the conveying quality and reduce energy consumption.

[0106] Combination Figure 2 and Figure 11 As shown, it also includes: a dryer 53, which is fixedly installed on the front and rear sides inside the processing frame 11, used to quickly promote the curing of the coating after the stainless steel substrate is sprayed, prevent the surface pattern from dripping or deforming, and ensure the coating quality. The dryer 53 is located at the closest position on the discharge side of the spraying structure. In this embodiment, it is on the left side of the spraying structure; two sets of enclosure structures are located on both sides of the spraying structure, respectively, used to enclose the spraying area and suppress the splashing of the coating.

[0107] Each enclosure structure includes: a mounting frame 51, which is fixedly installed inside the processing frame 11; two layers of bristles 52, which are fixedly installed on both sides of the mounting frame 51 respectively. The two layers of bristles 52 are arranged in an alternating manner, and their coverage area spans the entire cross section of the processing channel 1101; the stainless steel substrate passes through the gaps between the bristles 52. When the bristles 52 come into contact with the edge of the stainless steel substrate, they undergo elastic deformation, which effectively blocks the spread of the coating without affecting the normal passage of the stainless steel substrate.

[0108] The use of dryer 53 and enclosure structure will improve the working environment, protect the internal structure of the device from contamination, improve the surface quality of the coating, reduce paint loss, and enhance the controllability and cleanliness of the spraying process.

[0109] Combination Figure 1 , Figure 2 , Figure 11 and Figure 12 As shown, it also includes: two sets of cleaning structures, located on the upper and lower sides of the processing frame 11, and correspondingly covering the auxiliary roller 41 in the spraying area;

[0110] Each cleaning structure includes: a mounting frame 61, fixedly mounted on the processing frame 11, which covers the auxiliary roller 41 on the corresponding side; a cover plate 62, slidably inserted into the mounting frame 61, used to open and close the operating space inside the mounting frame 61; mounting shafts 63, rotatably mounted inside the mounting frame 61, the number of which corresponds to the covered auxiliary rollers 41; cleaning rollers 64, detachably fixedly mounted on each mounting shaft 63, and in contact with the surface of the corresponding auxiliary roller 41, used to remove the paint adhering to the surface of the cleaning roller 64, preventing paint accumulation from affecting the function of the auxiliary roller 41; a third transmission belt group 65, located between two adjacent groups of mounting shafts 63, to achieve synchronous transmission; and a second motor 66, fixedly mounted inside the mounting frame 61, whose output shaft is coaxially connected to one of the mounting shafts 63, providing power to the cleaning roller 64.

[0111] To ensure that the stainless steel substrate maintains accurate positioning and is fully coated when passing through the spraying structure, this device retains only auxiliary rollers 41 for vertical positioning in the spraying area. These auxiliary rollers 41 are prone to surface contamination during continuous contact with the coating. If not cleaned in time, coating will accumulate and the roller diameter will change, which will affect the alignment accuracy and conveying stability of the stainless steel substrate.

[0112] Therefore, this device is equipped with a cleaning structure: after the second motor 66 is started, the cleaning roller 64 is driven to rotate, so that it continuously contacts the surface of the corresponding auxiliary roller 41, and the adhering paint is wiped off in time, thereby effectively preventing the paint from drying and accumulating, ensuring the stability of the outer diameter of the auxiliary roller 41, and maintaining the positioning accuracy and smooth conveying of the stainless steel substrate; the cleaning roller 64 adopts a detachable design and needs to be replaced regularly. During maintenance, simply slide open the cover plate 62 to remove the old roller and replace it with a new roller, which is simple and quick to operate.

[0113] The cleaning structure, through real-time cleaning and modular maintenance, ensures the long-term precise operation of the auxiliary roller 41 in the spraying area while improving the sustainable operation capability and production efficiency of the device.

[0114] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A spraying device for stainless steel production, characterized in that, include: The processing frame (11) has a processing channel (1101) inside for the stainless steel substrate to pass through; Two sets of spraying structures are symmetrically arranged on the front and rear sides of the middle part of the processing frame (11), and the stainless steel substrate passes through the two sets of spraying structures. The transport structure is composed of two symmetrically arranged transport structures as a unit. At least two transport structure units are evenly arranged along the length of the processing channel (1101) to drive the stainless steel substrate through the processing frame (11) in a vertical state. And a drive structure, located inside the processing frame (11), for providing power to the transport structure; Each spraying structure includes: a spraying frame (12), which is fixedly connected to the inner wall of the processing frame (11); At least two sets of nozzles (13) are uniformly fixedly connected to the spray frame (12) along the length of the spray frame (12), and the nozzles (13) are connected to the inside of the spray frame (12) through the docking hole (1301); The nozzle (13) adopts a flat nozzle structure, and the spraying range is long and narrow. The spraying ranges of each nozzle (13) are seamlessly connected. And control tube (14), which is rotatably connected inside the spray frame (12), with its bottom passing through the spray frame (12) and the processing frame (11) for connecting the pump and connecting the paint. The control tube (14) has a long strip-shaped docking groove (1401) that can cover all the docking holes (1301). When the control tube (14) is rotated to align the docking groove (1401) with the docking hole (1301), the spraying structure is opened. When misaligned, the spraying structure is closed.

2. The spraying device for stainless steel production as described in claim 1, characterized in that, Each transport structure includes: two mounting plates (21), which are slidably connected to the upper and lower sides of the inside of the processing frame (11); The transport roller (22) is rotatably connected between the mounting plates (21); And an adjustment spring (23), which is fixedly connected between the mounting plate (21) and the processing frame (11); The adjusting spring (23) makes the two transport rollers (22) in the same transport structure unit fit together, and squeezes the two transport rollers (22) apart as the stainless steel substrate passes through; It also includes: a transmission structure, located between the transport structure and the spraying structure, which converts the displacement change of the mounting plate (21) into the rotational motion of the control tube (14); The transmission structure is controlled by a set of transport structure units located at the nearest position on the feed side of the spraying structure.

3. The spraying device for stainless steel production as described in claim 2, characterized in that, The transmission structure includes: a control block (24), which is fixedly connected to the mounting plate (21), and its end is provided with an inwardly concave inclined surface (2401); The mounting rail (25) is fixedly connected to the processing frame (11); The rack (26) is slidably connected to the mounting rail (25); The first return spring (29) is fixedly connected between the rack (26) and the mounting rail (25), and is sleeved on the mounting rail (25) for the return of the rack (26); The main gear (27) is rotatably connected to the machining frame (11) and meshes with the rack (26); The secondary gear (28) is fixedly connected to the outer periphery of the control tube (14) and meshes with the main gear (27). The main gear (27) has more teeth than the secondary gear (28) to amplify the transmission angle. And a reset torsion spring (210), which is fixedly connected between the main gear (27) and the processing frame (11), and is sleeved on the rotating shaft of the main gear (27), and its elastic coefficient is less than that of the first reset spring.

4. The spraying device for stainless steel production as described in claim 3, characterized in that, The drive structure includes: a first motor (31), which is fixedly connected inside the processing frame (11); Two parallel main drive shafts (32) are rotatably connected to the machining frame (11); The first support plate (33) is fixedly connected inside the processing frame (11); The second support plate (36) is slidably connected inside the processing frame (11); In each transport structure unit, the main drive shafts (32) on both sides are respectively connected to the transport structure on the corresponding side by a first support plate (33) and a second support plate (36), and the second support plate (36) is rotatably connected to the corresponding transport roller (22). The spline shaft assembly (35) consists of two shafts connected by splines, one of which is rotatably connected to the first support plate (33) and the other is rotatably connected to the second support plate (36). The spline shaft assembly (35) allows for axial length variation while transmitting torque. The first bevel gear set (34) consists of two meshing bevel gears, one of which is fixedly connected to the main drive shaft (32), and the other is rotatably connected to the first support plate (33) and is coaxially fixed with the shaft on the side of the first support plate (33) in the spline shaft set (35). The second bevel gear set (37) consists of two meshing bevel gears, one of which is rotatably connected to the second support plate (36) and coaxially fixed with the shaft on the side of the second support plate (36) in the spline shaft set (35), and the other is fixedly connected to the rotating shaft of the transport roller (22). Each set of first support plate (33) and second support plate (36) is provided with spline shaft group (35), first bevel gear group (34) and second bevel gear group (37) between the main drive shaft (32) on the corresponding side; The first auxiliary shaft (38) is rotatably connected to the machining frame (11); The first transmission belt assembly (39) is located between the first auxiliary shaft (38) and one of the main transmission shafts (32); And a reverse gear set (310), which consists of two meshing gears, one of which is fixedly connected to a first auxiliary shaft (38) and the other is fixedly connected to another main drive shaft (32).

5. The spraying device for stainless steel production as described in claim 4, characterized in that it further... include: The central structure is located within the processing channel (1101) and on the feeding side of the transport structure unit that cooperates with the transmission structure, and is used to centrally adjust the position of the stainless steel substrate. The central structure includes: two sets of bidirectional screws (311), which are connected in parallel rotation within the machining frame (11), with the threads on both sides rotating in opposite directions; Two sets of brackets (312) are slidably connected in the processing frame (11) and threadedly connected between two sets of bidirectional screws (311). The two sets of brackets (312) respectively cooperate with the thread sections with different directions of rotation on each bidirectional screw (311). The limiting roller (313) is rotatably connected to the bracket (312) and rolls in contact with the stainless steel substrate; The fourth transmission belt assembly (314) is located between the two sets of bidirectional screws (311) to achieve synchronous transmission; The protective frame (315) is fixedly connected inside the processing frame (11) and covers the outside of the fourth transmission belt group (314); The handle (316) is rotatably connected to the outside of the processing frame (11) and is coaxially fixed with one of the bidirectional screws (311).

6. The spraying apparatus for stainless steel production as described in claim 5, characterized in that it further... include: An auxiliary transport structure is located within the processing channel (1101) and is used to provide auxiliary transport and upper and lower limit functions; The auxiliary transport structure includes at least six sets of auxiliary rollers (41), which are rotatably connected to the upper and lower sides of the processing channel (1101) and arranged along the length of the channel; The second transmission belt group (42) is located between the two adjacent auxiliary roller groups (41) on the upper side; The second auxiliary shaft (43) is rotatably connected inside the machining frame (11); And the third bevel gear set (44), which consists of four bevel gears, two of which are fixedly connected in opposite directions to the second auxiliary shaft (43), and the other two are fixedly connected to the shaft of the main drive shaft (32) and the shaft of one of the upper auxiliary rollers (41), respectively. The bevel gear on the main drive shaft (32) meshes with one of the bevel gears on the second auxiliary shaft (43), and the bevel gear on the auxiliary roller (41) meshes with the other bevel gear on the second auxiliary shaft (43), which is used to adjust the conveying direction of the auxiliary roller (41) to the stainless steel substrate to be consistent with the transport roller (22).

7. The spraying apparatus for stainless steel production as described in claim 6, characterized in that it further... include: Two sets of enclosure structures are located on both sides of the spraying structure and are used to enclose the spraying area. Each enclosure structure includes: a mounting frame (51), which is fixedly connected to the processing frame (11); And two layers of bristles (52), which are fixedly connected to both sides of the mounting bracket (51); The two layers of bristles (52) are arranged in an alternating manner, and their coverage spans the entire cross section of the processing channel (1101). The stainless steel substrate passes through the gaps between the bristles (52), and the bristles (52) can undergo elastic deformation.

8. The spraying apparatus for stainless steel production as described in claim 7, characterized in that it further... include: The dryer (53) is fixedly connected to the front and rear sides inside the processing frame (11) to promote the curing of the coating; The dryer (53) is located at the closest position to the discharge side of the spray structure.

9. A spraying device for stainless steel production as described in claim 8, characterized in that, Also includes: Two sets of cleaning structures are located on the upper and lower sides of the processing frame (11) and cover the auxiliary roller (41) in the spraying area accordingly; Each cleaning structure includes: a mounting frame (61), which is fixedly connected to the processing frame (11) and covers the auxiliary roller (41) on the corresponding side; Mounting shafts (63) are rotatably connected to the mounting frame (61), and their number corresponds to the number of auxiliary rollers (41) covered. A cleaning roller (64) is mounted on each mounting shaft (63) and keeps in contact with the surface of the corresponding auxiliary roller (41) to remove the paint adhering to the surface of the cleaning roller (64); The third transmission belt assembly (65) is located between two adjacent sets of mounting shafts (63); The second motor (66) is fixedly connected inside the mounting frame (61), and its output shaft is coaxially connected to one of the mounting shafts (63).

10. A spraying apparatus for stainless steel production as described in claim 9, characterized in that, The cleaning roller (64) is detachably fixedly connected to each mounting shaft (63); Each cleaning structure also includes a cover plate (62), which is slidably inserted into the mounting frame (61) for opening and closing the operating space inside the mounting frame (61).

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