Spraying mechanism for surface layer of long-strip-shaped steel member
By combining a ring-type spraying mechanism and an inclined side guide mechanism, the problems of uneven and wasteful rebar spraying are solved, achieving uniformity and economy of the sprayed surface and reducing costs.
Patent Information
- Application Number
- CN202520171434.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-01-24
AI Technical Summary
In existing spraying equipment, the spraying of steel bars is uneven and wastes spraying liquid, resulting in uneven coating thickness at the bottom of the steel bars, which can easily cause single-point wear.
A ring-type spraying mechanism is adopted, which drives the spray head to rotate through the inner liner frame. The ring frame is equipped with a movable groove and a toothed ring to achieve the change of spray head position and sealing. Combined with the oblique side guide mechanism, it ensures the uniformity of spraying when the steel bar rotates.
It achieves uniformity of the steel bar coating surface and saves on spraying liquid, reduces spraying costs, and results in a thinner and more uniform coating with a more stable plating.
Smart Images
Figure CN223931681U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a processing equipment for long strip steel components, and more particularly to a surface coating mechanism for long strip steel components. Background Technology
[0002] Steel bars are widely used in construction, especially in rail engineering. Due to the complexity of the working conditions, steel bars need to be sprayed before application.
[0003] Traditional spraying equipment typically uses manual feeding, which is time-consuming, labor-intensive, and makes it difficult to ensure uniformity of the sprayed surface. Existing technologies often employ automated conveyor structures to transport entire sections of rebar to the lower end of the spraying structure, where multi-directional nozzles spray the cylindrical rebar to form a uniform coating. While this method achieves uniform spraying, it is wasteful of spraying liquid. The liquid is repeatedly applied to the same area, and excess liquid drips to the bottom of the equipment, resulting in excessive waste. Furthermore, some spraying liquid accumulates on the bottom surface of the rebar, causing the coating to be slightly thicker than other areas. This results in uneven rebar diameter and makes it prone to single-point wear during use. Utility Model Content
[0004] This invention provides a surface coating mechanism for long steel components, which not only allows the steel bars to rotate forward, but also allows the structure that mounts the spray head to rotate. This reduces the coverage area of the spray head while maintaining coating efficiency, achieving uniform coating while reducing coating waste and lowering coating costs, thus effectively solving the aforementioned problems.
[0005] This utility model is implemented as follows:
[0006] A surface coating mechanism for elongated steel components includes a conveying mechanism with multiple sets of conveying frames for conveying reinforcing bars to the coating position; and a coating chamber for receiving the reinforcing bars conveyed by the conveying frames, comprising several staggered annular frames, each annular frame housing several spray nozzles.
[0007] A ring-type spraying mechanism is provided, wherein the ring frame is hollow and communicates with the liquid supply end through an outer column. The ring-type spraying mechanism includes an inner liner frame rotatably mounted inside the ring frame. The inner liner frame is driven by an external drive structure. The spray head is mounted inside the inner liner frame and communicates with the inside of the ring frame. When the inner liner frame rotates along the inner wall of the ring frame, it drives the spray head to rotate.
[0008] As a further improvement, the inner ring surface of the ring frame is provided with a movable groove, and the inner liner frame includes a rotating ring plate movably disposed in the movable groove. An outer cover plate is connected to the end of the rotating ring plate away from the ring frame, and three nozzles are provided on the outer cover plate, with the included angle between the three nozzles being 120°.
[0009] As a further improvement, the outer cover plate is an arc-shaped plate, and both sides of the surface of the outer cover plate are provided with annular toothed rings, which mesh with the external drive structure.
[0010] As a further improvement, the external drive structure is provided with two sets of gears that respectively engage with two gear rings. The external drive structure includes a long gear that meshes with the gear rings. A drive gear meshes with the top of the long gear. The drive gear is driven by a rotary motor, which is located on the top of the ring frame.
[0011] As a further improvement, a sealing strip is provided on the outer side of the gear ring, and the sealing strip is fixed to the inner side wall of the ring frame.
[0012] As a further improvement, the transmission frame is a V-shaped groove for clamping the reinforcing bars.
[0013] The beneficial effects of this utility model are:
[0014] In existing spraying equipment, steel bars are often transported in a straight line and sprayed through evenly spaced nozzles to achieve the coating of the steel bar's outer surface. Although this method can achieve the effect of automatic coating, because it uses fixed-point spraying, some spray liquid will actually accumulate at the bottom of the steel bar after spraying, resulting in uneven coating surface. Therefore, this utility model uses a ring-shaped spraying mechanism to introduce the spray liquid into the ring frame, and allows the inner liner frame to slide inside the ring frame. This allows the nozzles mounted on the inner liner frame to change position, and the spray liquid will not leak out during the rotation of the nozzles. This allows for nozzle position switching, reduces the amount of spray from each nozzle, and achieves a multi-point surface effect, making the coating surface more uniform, thinner, and more even. The coated steel bar coating is more stable and can form a dot matrix coating structure.
[0015] During the installation of the inner liner frame, it is necessary not only to ensure that it can rotate, but also to prevent leakage of the spraying liquid. Therefore, this utility model opens a movable groove on the ring frame, so that the rotating ring plate in the inner liner frame can cooperate with the movable groove, thereby achieving rotation while sealing. The spraying liquid will be sprayed directly through the sprayer set on the outer cover plate without affecting the normal spraying effect. In order to better control the uniformity of spraying, the distance between the nozzles is set to 120°.
[0016] During the rotation of the inner liner frame, it needs to rotate, but the ring frame cannot rotate because it needs to be connected to the liquid supply end through the outer column. Therefore, this utility model sets two sets of toothed rings on the outer cover plate of the inner liner frame. Through the cooperation of the toothed rings and the outer drive structure, the partial movement of the inner liner frame is realized, thereby achieving the effect of the inner liner frame rotating while the ring frame remains stationary.
[0017] During the process of driving the gear ring in the external drive structure, since the gear ring is located in a relatively inner area, the structure that cooperates with the gear ring in the external drive structure is a long gear, which can cooperate with the gear ring over a long distance. The long gear is driven by a rotating motor through belt drive to realize the position change of the gear ring, thereby realizing the position change of the inner liner.
[0018] To improve the sealing effect between the inner liner and the ring frame when the gear ring rotates, a sealing strip is embedded on the outside of the gear ring. The sealing strip can squeeze out any gaps that may appear between the two, thereby preventing leakage at that location. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of this utility model.
[0021] Figure 2 This is a schematic diagram of the spray booth structure of this utility model.
[0022] Figure 3 This is a utility model Figure 2 The front view.
[0023] Figure 4 This is a schematic diagram of the ring-type spraying mechanism and the inclined side guide mechanism of this utility model.
[0024] Figure 5 This is a schematic diagram of the ring-type spraying mechanism of this utility model.
[0025] Figure 6 This is a utility model Figure 5 The front view.
[0026] Figure 7 This is a utility model Figure 6 Cross-sectional view at point AA.
[0027] Figure 8 This is a schematic diagram of the oblique guide mechanism of this utility model.
[0028] Figure 9 This is a utility model Figure 1 A magnified view of region B in the middle.
[0029] Figure 10 This is an overall view of the present invention assembled on a spraying line. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0031] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0032] Reference Figures 1-10As shown, a surface coating mechanism for a long strip of steel structure includes a conveying mechanism 10, which is provided with multiple sets of conveying frames 11 for conveying steel bars to the coating position; a coating chamber 20 for receiving the steel bars conveyed by the conveying frames 11, which includes several staggered ring frames 21, each ring frame 21 having several nozzles 22; and a ring-type coating mechanism 30, in which the ring frames 21 are hollow and communicate with the liquid supply end through an outer column 211. The ring-type coating mechanism 30 includes an inner liner frame 31 rotatably mounted inside the ring frames 21. Driven by an external drive structure 32, the nozzle 22 is installed inside the inner liner 31 and communicates with the inside of the annular frame 21. When the inner liner 31 rotates along the inner wall of the annular frame 21, it drives the nozzle 22 to rotate. The inclined guide mechanism 40 includes a mounting frame 41 set at the front or rear end of the annular frame 21. The reinforcing bar passes through the center of the mounting frame 41. A rotating member 42 that cooperates with the reinforcing bar is set on the inner side of the mounting frame 41. The rotating member 42 is driven by an external structure 43. When the reinforcing bar, which is moving in a straight line, passes through the rotating member 42, it rotates under the action of the rotating member 42.
[0033] During the steel bar spraying process, the steel bars are fed into the spraying chamber 20 by means of manual or automatic feeding through the conveyor frame 11. The steel bars are then sprayed by the nozzle 22 inside the spraying chamber 20.
[0034] In this embodiment, the three nozzles 22 are on the same surface. In fact, the area of the inner liner 31 can be increased so that the three nozzles 22 are staggered, which can achieve a better spraying effect.
[0035] By rotating both the steel reinforcement and the sprayed coating structure in opposite directions, the effect of uniformly compensating for the sprayed coating can be achieved in a short time.
[0036] In existing spraying equipment, the steel bars are often transported in a straight line and sprayed through equidistantly spaced nozzles 22 to achieve the coating of the steel bar's outer surface. Although this method can achieve the effect of automatic coating of the outer surface, because it uses fixed-point spraying, some of the spray liquid will actually deposit at the bottom of the steel bar after spraying, resulting in uneven coating surface. Therefore, this utility model uses a ring-type spraying mechanism 30 to introduce the spray liquid into the ring frame 21, and allows the inner liner frame 31 to slide inside the ring frame 21. This allows the nozzles 22 mounted on the inner liner frame 31 to change position, and the spray liquid will not leak out during the rotation of the nozzles 22. This allows for nozzle position switching, reduces the amount of spray from the nozzles, and makes the coating surface more uniform, thinner, and more even, resulting in a more stable coating on the steel bar after spraying.
[0037] During the installation of the inner liner frame 31, it is necessary to ensure that it can rotate while preventing leakage of the spraying liquid. Therefore, the inner ring surface of the ring frame 21 in this embodiment is provided with a movable groove. The inner liner frame 31 includes a rotating ring plate 311 movably disposed in the movable groove. An outer cover plate 312 is connected to the end of the rotating ring plate 311 away from the ring frame 21. Three nozzles 22 are provided on the outer cover plate 312. The included angle between the three nozzles 22 is 120°. By opening a movable groove on the ring frame 21, the rotating ring plate 311 in the inner liner frame 31 can cooperate with the movable groove, thereby achieving both rotation and sealing. The spraying liquid will be sprayed directly through the spraying plate 312 without affecting the normal spraying effect. In order to better control the spraying uniformity, the spacing between the nozzles is set to 120°.
[0038] During the rotation of the inner liner frame 31, it needs to rotate. However, the annular frame 21 cannot rotate because it needs to be connected to the liquid supply end through the outer column 211. Therefore, the outer cover plate 312 in this embodiment is an arc-shaped plate. Both sides of the surface of the outer cover plate 312 are provided with annular toothed rings 3121. The toothed rings 3121 mesh with the outer drive structure 32. By providing two sets of toothed rings 3121 on the outer cover plate 312 of the inner liner frame 31, the cooperation between the toothed rings 3121 and the outer drive structure 32 can realize the partial movement of the inner liner frame 31, thereby achieving the effect of the inner liner frame 31 rotating while the annular frame 21 remains stationary.
[0039] During the process of the external drive structure 32 driving the gear ring 3121, since the gear ring 3121 is located in a relatively inner area, specifically, the external drive structure 32 is provided with two sets that respectively cooperate with the two gear rings 3121. The external drive structure 32 includes a long gear 321 that meshes with the gear ring 3121. A drive gear 322 meshes with the top of the long gear 321. The drive gear 322 is driven by a rotating motor 323, which is located on the top of the ring frame 21. The structure in the external drive structure 32 that cooperates with the gear ring 3121 is the long gear 321, which can cooperate with the gear ring 3121 over a long distance. The long gear 321 is driven by the rotating motor 323 through belt drive, thereby realizing the position change of the gear ring 3121, and thus realizing the position change of the inner liner frame 31.
[0040] To improve the sealing effect between the inner liner 31 and the annular frame 21 when the gear ring 3121 rotates, a sealing strip 33 is provided on the outer side of the gear ring 3121. The sealing strip 33 is fixed to the inner side wall of the annular frame 21. By embedding a sealing strip 33 on the outer side of the gear ring 3121, the sealing strip 33 can compress any gaps that may appear between the two, thereby preventing leakage that may occur at that location.
[0041] In existing steel bar conveying structures, a straight-line transmission method is mostly used, conveying the steel bars directly to the front end. However, even when the spraying structure can rotate, it is difficult to ensure that the steel bars, which are always moving on the same plane, do not have local deposits. Therefore, this utility model adds an inclined guide mechanism 40. Under the premise that the steel bars can be conveyed in a straight line, a rotating component 42 and an external structure 43 are set at the front or rear end of the entire ring frame 21. The rotating component 42 can contact the steel bars and drive the steel bars to rotate by cooperating with the surface texture of the steel bars. The rotating steel bars, combined with the rotating spraying structure, achieve sufficient spraying without waste, and at the same time avoid local deposits on the steel bars.
[0042] Since the rebar output position passes through the middle of the entire ring frame 21, when setting the mounting frame 41, the mounting frame 41 includes two mounting rods 411 fixed on the outside of the ring frame 21. A mounting ring 412 is fixed in the middle of the two mounting rods 411. The mounting ring 412 is hollow, and the rebar passes through the center of the mounting ring 412. The mounting ring 412 in the mounting frame 41 also needs to be set in the central area of the corresponding ring frame 21 so as to play a certain limiting and guiding role for the rebar.
[0043] The surface of the reinforcing bar is not smooth; it has a thread-like structure. Therefore, for it to rotate, the rotating structure needs to fit into the surface of the reinforcing bar. Thus, in this embodiment, the outer circumferential surface of the mounting ring 412 is provided with several grooves. The rotating component 42 is a plurality of internal helical gears. Part of the conical surface of the internal helical gear is embedded in the groove and engages with the reinforcing bar. The axial direction of the internal helical gear is fixed to the mounting ring 412 by a U-shaped frame. By setting the rotating component 42 as an internal helical gear, the internal helical gear can better fit the texture of the reinforcing bar surface, so that the reinforcing bar can rotate together when rotating. Furthermore, since the reinforcing bar itself has the characteristic of moving forward based on the front structure, the effect of moving and turning at the same time can be achieved.
[0044] The external structure 43 that drives the internal helical gear specifically includes an external helical gear 431 that cooperates with the internal helical gear. The external helical gear 431 is driven by a rotary motor 432, which is locked on the mounting ring 412. The internal helical gear can be driven to rotate by the rotation of the external helical gear 431 driven by the rotary motor 432.
[0045] In this embodiment, the transmission frame 11 is a V-shaped groove for clamping the reinforcing bar, and the reinforcing bar is located in the V-shaped groove. In the forward moving structure of the reinforcing bar, this embodiment is divided into two parts. The feeding end of the spraying chamber 20 is provided with a guide mechanism 50. The guide mechanism 50 includes a side limiting structure 51 set on the side of the reinforcing bar and a lateral limiting structure 52 set on the top of the reinforcing bar. The side limiting structure 51 includes two side guide wheels 511 for driving the reinforcing bar forward and limiting the reinforcing bar laterally. The bottom of the side guide wheels 511 is connected to a bottom motor 5. 12. The lateral limiting structure 52 includes a horizontal bar 521 located at the top of the reinforcing bar. Several top guide wheels 522 corresponding to the number of reinforcing bars are sleeved on the horizontal bar 521. The lateral movement of the horizontal bar 521 is driven by a lateral motor 523. The lateral limiting structure 51 and the lateral limiting structure 52 are set at the front end of the spraying chamber 20. Through the lateral and top power, combined with the lower limiting effect of the V-shaped groove, the reinforcing bar can move forward in a straight line until it reaches the position of the inclined guide mechanism 40 and is rotated.
[0046] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A surface coating mechanism for elongated steel components, characterized in that, The system includes a transmission mechanism (10) with multiple sets of transmission frames (11) for transmitting reinforcing bars to the spraying position; and a spraying chamber (20) for receiving the reinforcing bars transmitted by the transmission frames (11), comprising several staggered ring frames (21), each ring frame (21) having several spray nozzles (22). The ring-type spraying mechanism (30) has a hollow ring frame (21) that is connected to the liquid supply end through an outer column (211). The ring-type spraying mechanism (30) includes an inner liner (31) that is rotatably installed inside the ring frame (21). The inner liner (31) is driven by an outer drive structure (32). The nozzle (22) is installed inside the inner liner (31) and communicates with the inside of the ring frame (21). When the inner liner (31) rotates along the inner wall of the ring frame (21), it drives the nozzle (22) to rotate.
2. The surface coating mechanism for a long strip steel component according to claim 1, characterized in that, The inner ring surface of the ring frame (21) is provided with a movable groove. The inner lining frame (31) includes a rotating ring plate (311) movably disposed in the movable groove. An outer cover plate (312) is connected to one end of the rotating ring plate (311) away from the ring frame (21). Three nozzles (22) are provided on the outer cover plate (312), and the included angle between the three nozzles (22) is 120°.
3. The surface coating mechanism for a long strip steel component according to claim 2, characterized in that, The outer cover plate (312) is an arc-shaped plate, and annular toothed rings (3121) are provided on both sides of the surface of the outer cover plate (312). The toothed rings (3121) mesh with the external drive structure (32).
4. The surface coating mechanism for a long strip steel component according to claim 3, characterized in that, The external drive structure (32) is provided with two sets of gears that respectively cooperate with two gear rings (3121). The external drive structure (32) includes a long gear (321) that meshes with the gear ring (3121). A drive gear (322) meshes with the top of the long gear (321). The drive gear (322) is driven by a rotating motor (323). The rotating motor (323) is located on the top of the ring frame (21).
5. The surface coating mechanism for a long strip steel component according to claim 3, characterized in that, A sealing strip (33) is provided on the outer side of the toothed ring (3121), and the sealing strip (33) is fixed to the inner side wall of the ring frame (21).
6. The surface coating mechanism for a long strip steel component according to claim 1, characterized in that, The transmission frame (11) is a V-shaped groove for clamping the reinforcing bars.