Automatic paint spraying device for steel structure

Abstract

The utility model discloses an automatic paint spraying device for a steel structure, relates to the technical field of steel structure production, and can be used for solving the problems that manual paint spraying is long in time consumption and unstable in quality, and harmful gas can be volatilized to harm the health of workers. The automatic paint spraying device for the steel structure comprises a paint spraying cabin, a conveying mechanism arranged in the paint spraying cabin and two paint spraying assemblies used for spraying primer and finish paint to the surface of a steel structure body respectively, and the two paint spraying assemblies are arranged on the two sides of the conveying mechanism respectively. The heating assembly is used for increasing the temperature in the paint spraying cabin body, the air exhaust assembly is used for exhausting waste gas in the paint spraying cabin body, the heating assembly comprises a heat exchange structure located below the conveying mechanism, and the air exhaust end of the air exhaust assembly is located at the top of the paint spraying cabin body.

Description

Technical Field

[0001] This utility model relates to the field of steel structure production technology, specifically to an automatic painting device for steel structures. Background Technology

[0002] In the production process of steel structures, after the assembly and spot welding process and the weld process, the surface of the steel structure also needs to undergo slag removal, rust removal and painting processes to prevent the steel structure surface from rusting, especially the welded positions, thereby ensuring the service life of the steel structure.

[0003] When painting the surface of a steel structure, at least a primer and a topcoat are usually required. Before applying the topcoat, it is necessary to ensure that the primer has dried completely. Otherwise, blistering may occur after the entire painting process is completed, which may become the rust initiation point of the entire anti-rust paint layer.

[0004] Currently, due to the large size of steel structures, it is usually necessary to manually spray the primer first, and then manually spray the topcoat after it dries. The entire painting process is not only time-consuming and has unstable painting quality, but also releases a large amount of harmful gases such as formaldehyde and benzene into the factory during the primer drying process, polluting the working environment and affecting the health of the workers.

[0005] Based on this, the inventors have designed an automatic painting device for steel structures that can solve at least one of the above problems, and hereby submit this application. Summary of the Invention

[0006] The purpose of this application is to provide an automatic painting device for steel structures, which solves the problems of long painting time, unstable quality, and the release of harmful gases that endanger workers' health.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0008] This application provides an automatic painting device for steel structures, including a painting chamber and a transport mechanism disposed in the painting chamber, as well as two sets of painting components for spraying primer and topcoat onto the surface of the main body of the steel structure, respectively, with the two sets of painting components disposed on both sides of the transport mechanism.

[0009] It also includes a heating assembly for increasing the temperature inside the paint spraying chamber and an exhaust assembly for extracting exhaust gases from the paint spraying chamber, wherein: the heating assembly includes a heat exchange structure located below the transport mechanism, and the exhaust end of the exhaust assembly is located at the top of the paint spraying chamber.

[0010] Optionally, the painting assembly includes an annular pipe located inside the painting chamber, and a number of nozzles distributed circumferentially along the annular pipe and connected to it, with the spray nozzles all facing the steel structure transport channel.

[0011] The painting assembly also includes a support structure located inside the painting chamber and fixedly connected to the annular pipe, and a delivery structure located outside the painting chamber with its delivery end connected to the annular support frame.

[0012] Optionally, the annular pipe is circular in shape, and several nozzles are evenly distributed along the circumference of the annular pipe.

[0013] Optionally, the transport mechanism includes two sets of chain and sprocket drive groups arranged in parallel, and a drive motor that drives the two sets of chain and sprocket drive groups to rotate synchronously;

[0014] The transportation mechanism also includes a steel structure support frame that is fixed at both ends to two chains of two sets of chain sprocket drive groups.

[0015] Optionally, the heating assembly includes a heating structure disposed outside the paint spraying chamber and used for heating liquid oil;

[0016] The heat exchange structure is a heat exchange oil pipe laid under the transport mechanism, and the oil inlet and outlet of the heat exchange oil pipe are connected to the oil outlet and oil inlet of the heating structure, respectively.

[0017] Optionally, the heat exchange oil pipes are laid in an S-shape.

[0018] Optionally, it also includes an air supply assembly for supplying gas into the paint booth, the air supply assembly including a blower located outside the paint booth and an air supply pipe connected at one end to the outlet of the blower and at the other end inside the paint booth.

[0019] The air supply and exhaust components can be combined to form a ventilation subsystem for rapidly refreshing the air inside the paint spraying chamber.

[0020] Optionally, the air supply pipe is laid horizontally at the bottom of the spraying chamber, and the air supply pipe is provided with several air outlets that face upward and are located directly below the transport mechanism.

[0021] Optionally, the exhaust assembly includes an exhaust pipe and an exhaust fan, with one end of the exhaust pipe connected to the exhaust end of the exhaust fan and the other end connected to the top of the paint spraying chamber.

[0022] Optionally, the two ends of the paint spraying chamber are provided with inlet and outlet of the same height;

[0023] It also includes two feeding and discharging structures located at the inlet and outlet respectively, as well as two sets of position sensors used to detect whether the main body of the steel structure has reached the painting assembly. The two sets of position sensors are set close to the two sets of painting assemblies respectively.

[0024] The beneficial effects of this utility model are:

[0025] The concept for solving the technical problem in this application is as follows: by setting up a paint spraying chamber, a transport mechanism, and two sets of paint spraying components, and by setting up a heating component below the transport mechanism, the main body of the steel structure can enter the paint spraying chamber, first be coated with primer by the first set of paint spraying components, and then be slowly transported to the other set of paint spraying components by the transport mechanism. The heat exchange structure of the heating component is set below the transport mechanism, so that the steel structure coated with primer can be quickly dried during the process of transporting to the other paint spraying component. Then, the dried area of ​​the steel structure surface is coated with topcoat, and then it can be transferred out of the chamber for other processing.

[0026] Furthermore, since this application also includes an extraction component, a large amount of harmful gases that evaporate during the drying process of the primer on the steel structure can be extracted and centrally treated. At the same time, the extraction end of the extraction component is located at the top of the paint spraying chamber, while the heat exchange structure is located at the bottom of the transport mechanism, so that the hot airflow in the entire paint spraying chamber flows from bottom to top, which is conducive to the rapid drying of the primer and avoids the problem of poor drying effect. Attached Figure Description

[0027] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the painting structure in an embodiment of this application.

[0029] Explanation of reference numerals in the attached drawings: 1-Painting chamber, 11-Inlet, 12-Outlet, 2-Transport mechanism, 21-Steel structure support frame, 3-Painting assembly, 31-Painting structure, 311-Annular pipe, 312-Spray nozzle, 32-Medication delivery structure, 33-Support structure, 4-Heating assembly, 41-Heating structure, 42-Heat exchange structure, 5-Air supply assembly, 51-Air supply fan, 52-Air supply pipe, 6-Exhaust assembly, 61-Exhaust pipe, 62-Exhaust fan, 7-Inlet / outlet structure, 8-Main steel structure. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0031] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] like Figure 1 and Figure 2 As shown, this embodiment provides an automatic painting device for steel structures, including a painting chamber 1 and a transport mechanism 2 disposed in the painting chamber, as well as two sets of painting components 3 for spraying primer and topcoat onto the surface of the main body 8 of the steel structure, respectively. The two sets of painting components 3 are respectively disposed on both sides of the transport mechanism 2.

[0035] It also includes a heating assembly 4 for increasing the temperature inside the paint spraying chamber 1, and an exhaust assembly 6 for extracting exhaust gas from the paint spraying chamber 1, wherein: the heating assembly 4 includes a heat exchange structure 42 located below the transport mechanism 2, and the exhaust end of the exhaust assembly 6 is located at the top of the paint spraying chamber.

[0036] This embodiment sets up a paint spraying chamber 1, a transport mechanism 2, and two sets of paint spraying components 3, with a heating component 4 installed below the transport mechanism 2. This allows the steel structure body 8 to enter the paint spraying chamber 1, where it is first sprayed with primer by the first set of paint spraying components 3, and then slowly transported to the other set of paint spraying components 3 via the transport mechanism 2. The heat exchange structure 42 of the heating component 4 is located below the transport mechanism 2, allowing the steel structure with primer sprayed to be quickly dried during the transport to the other set of paint spraying components 3. Subsequently, the dried area of ​​the steel structure surface is sprayed with topcoat, and then it is transferred out of the chamber to wait for the topcoat to dry or to be processed by other methods.

[0037] Furthermore, since this application also includes an extraction component 6, a large amount of harmful gases that evaporate during the drying process of the primer on the steel structure can be extracted and centrally treated. At the same time, the extraction end of the extraction component 6 is located at the top of the paint spraying chamber 1, while the heat exchange structure 42 is located at the bottom of the transport mechanism 2, so that the hot airflow in the entire paint spraying chamber 1 flows from bottom to top, which is conducive to the rapid drying of the primer and avoids the problem of poor drying effect.

[0038] Specifically, in this embodiment, such as Figure 1 and Figure 2 As shown, the painting assembly 3 includes an annular pipe 311 located inside the painting chamber 1, and a number of nozzles 312 distributed circumferentially along the annular pipe 311 and connected to it. The spray nozzles 312 are all oriented towards the steel structure transport channel.

[0039] The painting assembly 3 also includes a support structure 33 located inside the painting chamber 1 and fixedly connected to the annular pipe 311, and a delivery structure 32 located outside the painting chamber 1 and whose delivery end is connected to the annular support frame.

[0040] Specifically, in this embodiment, as Figure 2 As shown, the annular pipe 311 is circular in shape, and several nozzles 312 are evenly distributed along the circumference of the annular pipe 311, which can spray paint on various positions of the steel structure surface.

[0041] Specifically, in this embodiment, such as Figure 1 and Figure 2 As shown, the transport mechanism 2 includes two sets of chain and sprocket drive groups arranged in parallel, and a drive motor that drives the two sets of chain and sprocket drive groups to rotate synchronously.

[0042] The transport mechanism 2 also includes a steel structure support frame 21 with both ends fixed to two chains of two sets of chain sprocket drive groups. The transport mechanism 2 in this embodiment is a common mechanism and will not be described in detail here.

[0043] Specifically, in this embodiment, the heating component 4 includes a heating structure 41 disposed outside the paint spraying chamber 1 and used for heating liquid oil;

[0044] The heat exchange structure 42 is a heat exchange oil pipe laid below the transport mechanism 2. The oil inlet and oil outlet of the heat exchange oil pipe are respectively connected to the oil outlet and oil inlet of the heating structure 41.

[0045] Specifically, in this embodiment, the heat exchange oil pipe is laid in an S-shape to ensure heat dissipation.

[0046] Specifically, in this embodiment, it also includes an air supply assembly 5 for supplying gas into the paint spraying chamber 1. The air supply assembly 5 includes a blower 51 located outside the paint spraying chamber 1, and an air supply pipe 52 with one end connected to the air outlet of the blower 51 and the other end located inside the paint spraying chamber 1.

[0047] The air supply component 5 and the air extraction component 6 can form a ventilation subsystem for rapidly updating the air inside the paint spraying chamber. In this embodiment, by simultaneously setting the air supply component 5 and the air extraction component 6, the uniformity of gas flow within the entire paint spraying chamber 1 can be ensured.

[0048] Specifically, in this embodiment, the air supply pipe 52 is laid horizontally at the bottom of the spraying chamber, and the air supply pipe 52 is provided with several air outlets (not shown in the figure) that open upward and are located directly below the transport mechanism 2, so that the airflow delivered by the air supply component 5 can quickly exchange heat with the heat exchange structure 42. When close to the heat source, the airflow blown toward the surface of the steel structure is hot airflow, which improves the drying effect.

[0049] Specifically, in this embodiment, the exhaust assembly 6 includes an exhaust pipe 61 and an exhaust fan 62. One end of the exhaust pipe 61 is connected to the exhaust end of the exhaust fan, and the other end is connected to the top of the paint spraying chamber 1. In this embodiment, the exhaust pipe 61 includes a main pipe and multiple branch pipes, thereby ensuring the uniformity of the hot airflow in the entire paint spraying chamber 1 and ensuring the drying effect of the primer on the steel structure surface.

[0050] Specifically, in this embodiment, such as Figure 1 As shown, the two ends of the paint spraying chamber 1 are provided with a feed inlet 11 and a discharge outlet 12 of the same height;

[0051] It also includes two feeding / discharging structures 7 located at the inlet 11 and outlet 12 respectively, and two sets of positioning sensors for detecting whether the main steel structure 8 has reached the painting assembly 3. The two sets of positioning sensors are respectively set close to the two sets of painting assemblies 3. The positioning sensors can sense whether the steel structure has entered the cabin.

[0052] Technicians can also calculate the exact time when the main steel structure 8 arrives at the painting assembly 3 based on the length of the paint spraying chamber 1 and the transport speed of the transport mechanism 2, thereby achieving automated painting. This is an existing conventional control method, which will not be elaborated on here.

[0053] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. An automatic painting device for steel structures, characterized in that, It includes a paint spraying chamber (1) and a transport mechanism (2) installed in the paint spraying chamber, as well as two sets of paint spraying components (3) for spraying primer and topcoat onto the surface of the main steel structure (8), respectively. The two sets of paint spraying components (3) are respectively installed on both sides of the transport mechanism (2). It also includes a heating assembly (4) for increasing the temperature inside the paint spraying chamber (1) and an exhaust assembly (6) for extracting exhaust gas from the paint spraying chamber (1), wherein: the heating assembly (4) includes a heat exchange structure (42) located below the transport mechanism (2), and the exhaust end of the exhaust assembly (6) is located at the top of the paint spraying chamber.

2. The automatic painting device for steel structures according to claim 1, characterized in that, The painting assembly (3) includes an annular pipe (311) located inside the painting chamber (1), and a number of nozzles (312) distributed circumferentially along the annular pipe (311) and connected to it. The spray nozzles (312) are all oriented towards the steel structure transport channel. The painting assembly (3) also includes a support structure (33) located inside the painting chamber (1) and fixedly connected to the annular pipe (311), and a delivery structure (32) located outside the painting chamber (1) and whose delivery end is connected to the annular support frame.

3. An automatic painting device for steel structures according to claim 2, characterized in that, The annular pipe (311) is circular in shape, and several nozzles (312) are evenly distributed along the circumference of the annular pipe (311).

4. An automatic painting device for steel structures according to claim 1, characterized in that, The transport mechanism (2) includes two sets of chain and sprocket drive groups arranged in parallel, and a drive motor that drives the two sets of chain and sprocket drive groups to rotate synchronously; The transport mechanism (2) also includes a steel structure support frame (21) with both ends fixed to two chains of two sets of chain sprocket drive groups.

5. An automatic painting device for steel structures according to claim 1, characterized in that, The heating assembly (4) includes a heating structure (41) disposed outside the paint spraying chamber (1) and used for heating liquid oil. The heat exchange structure (42) is a heat exchange oil pipe laid under the transport mechanism (2), and the oil inlet and oil outlet of the heat exchange oil pipe are respectively connected to the oil outlet and oil inlet of the heating structure (41).

6. An automatic painting device for steel structures according to claim 5, characterized in that, The heat exchange oil pipes are laid in an S-shape.

7. An automatic painting device for steel structures according to claim 1, characterized in that, It also includes an air supply assembly (5) for supplying gas into the paint spraying chamber (1). The air supply assembly (5) includes a blower (51) located outside the paint spraying chamber (1) and an air supply pipe (52) with one end connected to the air outlet of the blower (51) and the other end located inside the paint spraying chamber (1). The air supply assembly (5) and the air extraction assembly (6) can form an air exchange subsystem for rapidly updating the air inside the paint spraying chamber.

8. An automatic painting device for steel structures according to claim 7, characterized in that, The air supply pipe (52) is laid horizontally at the bottom of the spraying chamber, and the air supply pipe (52) is provided with several air outlets that face upward and are located directly below the transport mechanism (2).

9. An automatic painting device for steel structures according to claim 1, characterized in that, The exhaust assembly (6) includes an exhaust pipe (61) and an exhaust fan (62). One end of the exhaust pipe (61) is connected to the exhaust end of the exhaust fan, and the other end is connected to the top of the paint spraying chamber (1).

10. An automatic painting device for steel structures according to claim 1, characterized in that, The paint spraying chamber (1) has an inlet (11) and an outlet (12) of the same height at both ends. It also includes two feeding and discharging structures (7) located at the feed inlet (11) and the discharge outlet (12) respectively, as well as two sets of position sensors for detecting whether the main body of the steel structure (8) has reached the painting assembly (3). The two sets of position sensors are set close to the two sets of painting assemblies (3) respectively.

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