Spraying device for lightweight steel structure coating

Abstract

The utility model discloses a spraying device for a lightweight steel structure coating. The spraying device comprises a conveyor and an auxiliary device, a spraying frame and an air drying cabin are mounted on the conveyor, an annular pipe is detachably mounted in the spraying frame, and a plurality of nozzles are mounted on the inner side wall of the annular pipe; the auxiliary device is installed on the conveyor and comprises a supporting frame, the supporting frame is fixed to the conveyor, a lifting rod is inserted into the supporting frame, a C-shaped piece is fixed to the end, arranged in the supporting frame, of the lifting rod, shaft seats are fixed to the two side walls of the C-shaped piece, and first rotating pieces are rotationally arranged on the pair of shaft seats; third pulleys are installed at the ends, away from the C-shaped piece, of the pair of first rotating pieces, a spring is installed between the pair of first rotating pieces, and transverse rods are fixed to the two ends of the C-shaped piece. By means of the relevant structural design, stable conveying in the section steel spraying process can be effectively guaranteed, spraying uniformity is effectively improved, and meanwhile damage to the nozzles is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of spraying devices, specifically relating to a spraying device for lightweight steel structure coating. Background Technology

[0002] Steel structures are an important choice for modern engineering due to their lightweight, high strength, and quick construction. In order to improve the fire resistance, corrosion resistance, aesthetics, construction efficiency, environmental friendliness, service life, and compliance with building codes, steel structures are usually coated with paint to enhance their safety and durability.

[0003] The most widely used steel structures are I-beams and H-beams. Currently, in the process of spraying I-beams and H-beams, the steel is basically placed on a conveyor and sprayed through the nozzle. However, in the existing spraying equipment, when the steel is transported to the nozzle by the conveyor, there is no auxiliary fixing device. If the steel deviates during the transport process, it will not only lead to uneven spraying, but the deviated steel may also damage the nozzle.

[0004] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a spraying device for lightweight steel structure coating.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a lightweight steel structure coating spraying device that can solve the problem of the lack of auxiliary fixation for steel structures during the use of existing steel structure spraying devices.

[0007] To achieve the above objectives, a specific embodiment of the present invention provides a spraying device for lightweight steel structure coating, comprising: a conveyor and auxiliary devices;

[0008] The conveyor is equipped with a spraying frame and a drying chamber. A ring tube is detachably installed inside the spraying frame. Multiple nozzles are installed on the inner side wall of the ring tube. Multiple conveying rollers are installed on both sides of the spraying frame and the drying chamber on the conveyor.

[0009] The auxiliary device is installed on the conveyor and includes a support frame fixed to the conveyor. A lifting rod is inserted into the support frame, and a C-shaped component is fixed to one end of the lifting rod inside the support frame. A bearing seat is fixed to both sides of the C-shaped component. A first rotating component is rotatably mounted on each pair of bearing seats. A third pulley is mounted on the end of each pair of first rotating components away from the C-shaped component. A spring is installed between the pair of first rotating components. A crossbar is fixed to both ends of the C-shaped component. A pair of second rotating components is rotatably mounted on both ends of each pair of crossbars. A movable component is mounted on the end of each pair of second rotating components away from the crossbar. A pair of rotating shafts is fixed to the movable component. A first pulley is rotatably mounted on each pair of rotating shafts. Fixed components are fixed to both ends of the conveyor. A pair of fixed shafts are mounted on each pair of fixed components. An auxiliary roller is rotatably mounted on each pair of fixed shafts.

[0010] In one or more embodiments of this utility model, a connector is fixed on the annular tube, and a threaded sleeve is fixed on the spraying frame. The connector is threadedly connected to the threaded sleeve. The annular tube can be detachably installed with the spraying frame through the connector and the threaded sleeve. Different sizes of annular tubes can be replaced according to different sizes of I-beams or H-beams.

[0011] In one or more embodiments of this utility model, an inner spray pipe is fixed on both inner walls of the annular pipe. A longitudinal horizontal plane and two inclined planes are provided on each end of the pair of inner spray pipes. Spray nozzles are installed on the longitudinal horizontal plane and the inclined planes. By setting the inner spray pipes, the spray nozzles installed on the inner spray pipes can spray the inner wall of the I-shaped steel or H-shaped steel channel more evenly.

[0012] In one or more embodiments of this utility model, both ends of the spraying rack and the drying chamber are fixed with first mounting members. The first mounting members are fixedly installed on the two side walls of the conveyor, and both the spraying rack and the drying chamber are installed on the conveyor through the first mounting members.

[0013] In one or more embodiments of this utility model, a second mounting member is fixed at both ends of the support frame. The second mounting member is fixedly installed on the side walls of the conveyor, and the support frame is installed on the conveyor through the second mounting member.

[0014] In one or more embodiments of this utility model, a pair of second pulleys are installed on the side of the moving member near the crossbar. When the C-shaped member moves downward, the second pulleys contact the steel section, causing the second rotating member to rotate. The second rotating member drives the moving member to move closer to the inner wall of the steel section, so that the first pulleys fit against the inner wall of the steel section. At the same time, during the steel section transportation process, the friction between the second rotating member and the steel section support is reduced by the second pulleys.

[0015] In one or more embodiments of this utility model, the two ends of the crossbar are fixed with limit blocks between a pair of second rotating parts. The limit blocks limit the second rotating parts to prevent the second rotating parts from rotating too much downward after the C-shaped part is lifted down, so that the second pulley cannot be placed in the steel groove of the steel section when the steel section is fixed again.

[0016] In one or more embodiments of this utility model, a pair of slots are drilled on the fixing member, and the fixing shaft is inserted into the slot. The fixing shaft can move in the slot according to the size of the steel section to adjust the distance between the pair of auxiliary rollers.

[0017] In one or more embodiments of this utility model, a first washer is fixed on the upper end of the fixing member on the fixed shaft, and the depth of the fixed shaft inserted into the slot is limited by the first washer.

[0018] In one or more embodiments of this utility model, a second washer is slidably disposed on the lower end of the fixing shaft and the bottom end of the second washer is threadedly connected to the fixing shaft. The fixing shaft is fixed to the fixing member by turning the nut knob at the end of the fixing shaft and by the second washer.

[0019] Compared with the prior art, this utility model, through its related structural design, can effectively ensure stable conveying during the steel spraying process, which not only effectively improves the uniformity of spraying but also reduces nozzle damage. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of a spraying device for lightweight steel structure coating in one embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the spray frame and the annular tube in one embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of a steel section passing through an annular tube in one embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the auxiliary device in one embodiment of the present invention;

[0025] Figure 5This is a schematic diagram of the steel section passing through the auxiliary device in one embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the C-shaped component in one embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the connection structure between the fixing member and the fixing shaft in one embodiment of the present invention.

[0028] Explanation of key figure labels:

[0029] 1-Conveyor, 101-Conveyor Roller, 102-Spraying Frame, 103-Drying Chamber, 104-Annular Pipe, 105-Connector, 106-Threaded Sleeve, 107-Spray Nozzle, 108-Inner Spray Pipe, 109-First Mounting Component, 110-Structure Steel, 2-Auxiliary Device, 201-Support Frame, 202-Second Mounting Component, 203-Lifting Rod, 204-C-Shaped Component, 205-Shaft Seat, 206-First Rotating Component, 207-Spring, 208-Crossbar, 209-Second Rotating Component, 210-Moving Component, 211-Rotating Shaft, 212-First Pulley, 213-Second Pulley, 214-Limiting Block, 215-Fixing Component, 216-Slot, 217-Fixing Shaft, 218-Auxiliary Roller, 219-First Washer, 220-Second Washer, 221-Nut, 222-Third Pulley. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solutions of this utility model, 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 some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0031] like Figures 1 to 7 As shown, a lightweight steel structure coating spraying device according to one embodiment of the present invention includes: a conveyor 1 and an auxiliary device 2.

[0032] like Figures 1 to 3 As shown, a spraying frame 102 and a drying chamber 103 are installed on the conveyor 1. An annular tube 104 is detachably installed inside the spraying frame 102. Multiple nozzles 107 are installed on the inner side wall of the annular tube 104. Multiple conveying rollers 101 are installed on both sides of the spraying frame 102 and the drying chamber 103 on the conveyor 1. The conveying rollers 101 are used to convey the steel profile 110. When the steel profile 110 is conveyed to the spraying frame 102, it passes through the center of the annular tube 104 for spraying and then passes through the drying chamber 103 for drying.

[0033] like Figures 1 to 3 As shown, a connector 105 is fixed on the annular tube 104, and a threaded sleeve 106 is fixed on the spray frame 102. The connector 105 and the threaded sleeve 106 are threadedly connected. The annular tube 104 can be detachably installed with the spray frame 102 through the connector 105 and the threaded sleeve 106. Different sizes of annular tubes 104 can be replaced according to different sizes of I-beams or H-beams.

[0034] like Figures 1 to 3 As shown, an inner spray pipe 108 is fixed on both inner walls of the annular pipe 104. Each pair of inner spray pipes 108 has a longitudinal horizontal surface and two inclined surfaces at opposite ends. Spray nozzles 107 are installed on both the longitudinal horizontal surface and the inclined surfaces. By setting the inner spray pipes 108, the spray nozzles 107 installed on the inner spray pipes 108 can spray the inner wall of the I-shaped steel or H-shaped steel channel more evenly.

[0035] like Figures 1 to 3 As shown, both ends of the spraying rack 102 and the drying chamber 103 are fixed with first mounting parts 109. The first mounting parts 109 are fixedly installed on the two side walls of the conveyor 1. The spraying rack 102 and the drying chamber 103 are both installed on the conveyor 1 through the first mounting parts 109.

[0036] like Figure 1 and Figure 4 As shown, the auxiliary device 2 is installed on the conveyor 1. The auxiliary device 2 includes a support frame 201, which is fixed to the conveyor 1. A lifting rod 203 is inserted into the support frame 201. A C-shaped piece 204 is fixed to one end of the lifting rod 203 inside the support frame 201. The upper end of the lifting rod 203 needs to be connected to an external telescopic cylinder to drive the lifting rod 203 to move up and down. The lifting rod 203 drives the C-shaped piece 204 to move up and down.

[0037] In addition, bearing seats 205 are fixed on both sides of the C-shaped part 204. A first rotating part 206 is rotatably mounted on each pair of bearing seats 205. A third pulley 222 is installed on the end of each pair of first rotating parts 206 away from the C-shaped part 204. A spring 207 is installed between the pair of first rotating parts 206. When the lifting rod 203 drives the C-shaped part 204 to move downward, the C-shaped part 204 drives the pair of first rotating parts 206 to move downward, so that the third pulley 222 presses on the steel profile 110. During the downward pressing process, the spring 207 is stretched. The reverse elastic force of the spring 207 pulls the pair of first rotating parts 206 together. The first rotating parts 206 make the third pulley 222 press on the steel profile 110, thereby providing longitudinal auxiliary fixation for the steel profile 110.

[0038] Secondly, both ends of the C-shaped component 204 are fixed with crossbars 208. Both ends of the crossbars 208 are rotatably equipped with a pair of second rotating parts 209. The ends of the two pairs of second rotating parts 209 away from the crossbars 208 are equipped with moving parts 210. A pair of rotating shafts 211 are fixed on the moving parts 210. A first pulley 212 is rotatably equipped on each pair of rotating shafts 211. When the C-shaped component 204 drives the crossbars 208 to move downward, the ends of the second rotating parts 209 away from the crossbars 208 contact the bottom wall thickness of the steel profile 110, causing the two ends of the second rotating parts 209 to rotate simultaneously. When the second rotating parts 209 rotate, they drive the moving parts 210 to move, while keeping the moving parts 210 in a vertical position. The moving parts 210 drive the first pulleys 212 to stick tightly to the inner wall of the steel profile 110, thereby providing horizontal auxiliary fixation for the steel profile 110.

[0039] Finally, both ends of the conveyor 1 are fixed with fixing parts 215. Each pair of fixing parts 215 is equipped with a pair of fixing shafts 217. Each pair of fixing shafts 217 is rotatably equipped with auxiliary rollers 218. When the steel section 110 enters the conveyor 1, the auxiliary rollers 218 correct the steel section 110 so that the steel section 110 is in the center position of the conveyor 1.

[0040] like Figures 4 to 7 As shown, the support frame 201 has a second mounting component 202 fixed at both ends. The second mounting component 202 is fixedly installed on both side walls of the conveyor 1, and the support frame 201 is installed on the conveyor 1 through the second mounting component 202.

[0041] like Figures 4 to 7 As shown, a pair of second pulleys 213 are installed on the side of the movable part 210 near the crossbar 208. When the C-shaped part 204 moves downward, the second pulleys 213 contact the steel section, causing the second rotating part 209 to rotate. The second rotating part 209 drives the movable part 210 to move closer to the inner wall of the steel section, so that the first pulley 212 fits against the inner wall of the steel section. At the same time, during the steel section transportation process, the friction between the second rotating part 209 and the steel section support is reduced by the second pulleys 213.

[0042] like Figures 4 to 7 As shown, both ends of the crossbar 208 are fixed with limit blocks 214 between a pair of second rotating parts 209. The limit blocks 214 limit the second rotating parts 209 to prevent the second rotating parts 209 from rotating too much downward after the C-shaped part 204 is lifted down, which would cause the second pulley 213 to be unable to be placed in the steel groove of the steel section when the steel section is fixed again.

[0043] like Figures 4 to 7As shown, a pair of slots 216 are cut into the fixing member 215, and the fixing shaft 217 is inserted into the slots 216. The fixing shaft 217 can move in the slots 216 according to the size of the steel profile to adjust the distance between the pair of auxiliary rollers 218. A first washer 219 is fixed to the upper end of the fixing member 215 on the fixing shaft 217, and the first washer 219 limits the depth of the fixing shaft 217 inserted into the slot 216.

[0044] like Figures 4 to 7 As shown, a second washer 220 is slidably disposed on the lower end of the fixing member 215, and a nut 221 is threadedly connected to the bottom end of the second washer 220. By turning the nut 221 at the end of the fixing shaft 217, the fixing shaft 217 is fixed to the fixing member 215 through the second washer 220.

[0045] Working principle: Before using this equipment, a telescopic cylinder is first added to the top of the lifting rod 203 to drive the lifting rod 203 to move up and down. At the same time, the spacing between the auxiliary rollers 218 for adjusting the size of the steel profile 110 to be sprayed is also required. Replace the annular tube 104 with one that is suitable for the size of the steel profile 110. After the replacement is completed, the steel profile 110 is passed through a pair of auxiliary rollers 218 at one end, so that the steel groove of the steel profile 110 is placed on both sides. Then, the drive device drives the conveying roller 101 to rotate, which drives the steel profile 110 to move towards the spray frame 102. When the steel profile 110 moves into the support frame 201 on one side of the spray frame 102, the two pairs of first pulleys 212 are just placed in the steel grooves on both sides of the steel profile 110.

[0046] Subsequently, the lifting rod 203 is moved downward by the telescopic cylinder. The lifting rod 203 moves the C-shaped part 204 downward. The C-shaped part 204 moves a pair of first rotating parts 206 downward, so that the third pulley 222 presses on the steel profile 110. During the downward pressing process, the spring 207 is stretched. The reverse elastic force of the spring 207 pulls the pair of first rotating parts 206 together. The first rotating parts 206 make the third pulley 222 press on the steel profile 110, thereby providing longitudinal auxiliary fixation for the steel profile 110.

[0047] At the same time, the C-shaped component 204 drives a pair of horizontal bars 208 to move downward. When the C-shaped component 204 drives the horizontal bars 208 to move downward, the second pulley 213 contacts the steel section, causing the second rotating component 209 to rotate. The two pairs of second rotating components 209 rotate simultaneously, and the second rotating component 209 drives the moving component 210 to move. At the same time, the moving component 210 always moves in a vertical state. The moving component 210 drives the first pulley 212 to stick to the inner wall of the steel section 110, thereby providing horizontal auxiliary fixation for the steel section 110.

[0048] Then the drive device is started to rotate the conveyor roller 101. The conveyor roller 101 drives the steel section 110 to move into the spray frame 102, pass through the middle of the annular tube 104, and the spray nozzle 107 sprays the surface of the steel section 110. Then it passes through the drying chamber 103 for drying and finally moves to the other end, where it is fixed again by the support frame 201. Finally, all the spraying is completed and the process ends.

[0049] When the steel section 110 moves to the position of the spraying rack 102 and the drying chamber 103, although the conveyor roller 101 is not installed in this section, the auxiliary devices 2 located on both sides provide longitudinal auxiliary fixation for the steel section 110, thereby preventing the steel section 110 from sinking downwards when the beginning or end moves to this area due to gravity.

[0050] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A spraying device for coating lightweight steel structures, characterized in that, include: A conveyor, on which a spray frame and a drying chamber are installed, and an annular tube is detachably installed inside the spray frame. Multiple nozzles are installed on the inner side wall of the annular tube, and multiple conveying rollers are installed on both sides of the spray frame and the drying chamber on the conveyor. An auxiliary device, installed on a conveyor, includes a support frame fixed to the conveyor. A lifting rod is inserted into the support frame. A C-shaped component is fixed to one end of the lifting rod within the support frame. Shaft seats are fixed to both sides of the C-shaped component. A first rotating component is rotatably mounted on each pair of shaft seats. A third pulley is mounted on the end of each pair of first rotating components away from the C-shaped component. A spring is installed between the pair of first rotating components. A crossbar is fixed to both ends of the C-shaped component. A pair of second rotating components is rotatably mounted on both ends of each pair of crossbars. A movable component is mounted on the end of each pair of second rotating components away from the crossbar. A pair of rotating shafts is fixed to the movable component. A first pulley is rotatably mounted on each pair of rotating shafts. Fixed components are fixed to both ends of the conveyor. A pair of fixed shafts are mounted on each pair of fixed components. An auxiliary roller is rotatably mounted on each pair of fixed shafts.

2. The spraying device for lightweight steel structure coating according to claim 1, characterized in that, A connector is fixed on the annular tube, and a threaded sleeve is fixed on the spraying frame. The connector is threadedly connected to the threaded sleeve.

3. The spraying device for lightweight steel structure coating according to claim 1, characterized in that, The annular pipe is fixed with an inner spray pipe on both inner side walls. Each pair of inner spray pipes has a longitudinal horizontal plane and two inclined planes at opposite ends. Spray nozzles are installed on the longitudinal horizontal plane and the inclined planes.

4. The spraying device for lightweight steel structure coating according to claim 1, characterized in that, Both ends of the spraying rack and the drying chamber are fixed with first mounting parts, which are fixedly installed on the two side walls of the conveyor.

5. The spraying device for lightweight steel structure coating according to claim 1, characterized in that, The support frame is fixed with a second mounting component at both ends, and the second mounting component is fixedly installed on the two side walls of the conveyor.

6. The spraying device for lightweight steel structure coating according to claim 1, characterized in that, A pair of second pulleys are installed on the side of the moving part near the crossbar.

7. The spraying device for lightweight steel structure coating according to claim 1, characterized in that, Both ends of the crossbar are fixed with limit blocks between a pair of second rotating parts.

8. The spraying device for lightweight steel structure coating according to claim 1, characterized in that, The fastener has a pair of slots, and the fixing shaft is inserted into the slots.

9. A spraying device for lightweight steel structure coating according to claim 8, characterized in that, A first washer is fixed on the upper end of the fixing member on the fixed shaft.

10. A spraying device for lightweight steel structure coating according to claim 9, characterized in that, The fixed shaft is slidably disposed at the lower end of the fixing member with a second washer, and the fixed shaft is threadedly connected to the bottom end of the second washer with a nut.

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