A paint spraying line for mechanical structures

By designing a painting production line with a circular track and hoisting mechanism, the problem of low painting efficiency of traditional mechanical structural parts has been solved, realizing automated spraying and assembly line processing, improving painting efficiency and reducing environmental pollution.

CN224405522UActive Publication Date: 2026-06-26BOYUAN (SHANDONG) NEW ENERGY TECH DEV CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BOYUAN (SHANDONG) NEW ENERGY TECH DEV CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-26

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  • Figure CN224405522U_ABST
    Figure CN224405522U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of paint spraying production lines for mechanical structural parts, it is related to paint spraying production line technical field;Including annular track;Annular track includes annular track ontology and multiple support frames, multiple support frames are connected between annular track ontology and ground, so that annular track ontology is higher than ground preset distance;Annular track is slidably connected with hoisting mechanism, hoisting mechanism is used to hang mechanical structural parts;Annular track is sequentially provided with primer front side spraying station, primer back side spraying station, topcoat front side spraying station and topcoat back side spraying station along clockwise direction;The primer front side spraying station includes primer front side spraying chamber and be connected in the first paint spraying mechanism, first water storage mechanism and first water distribution mechanism in primer front side spraying chamber;First paint spraying mechanism is used to spray primer to the front side of mechanical structural parts, and first water distribution mechanism can realize downward output water flow and transport the excess paint mist in primer front side spraying chamber to first water storage mechanism.
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Description

Technical Field

[0001] This utility model belongs to the technical field of spray painting production lines, and specifically relates to a spray painting production line for mechanical structural parts. Background Technology

[0002] Traditional painting operations for mechanical structural components, such as end caps, require manual painting or the use of robotic arms or other clamping devices to hold the components before applying paint with a spray gun, followed by drying. This method typically involves individual piece-by-piece operation. When each component needs to be positioned and clamped, significant time is required, impacting painting efficiency. Furthermore, mechanical structural components require painting not only on the front but also on the back, necessitating flipping. For large and heavy components, multiple operators are needed for flipping, or individual flipping devices are required, adding extra equipment, increasing costs, and occupying considerable space. Moreover, painting each component individually makes assembly line painting difficult, hindering large-scale production. Utility Model Content

[0003] This invention provides a painting production line for mechanical structural parts to solve the problem of difficulty in achieving assembly line-style painting operations.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A painting production line for mechanical structural components includes a circular track; the circular track includes a circular track body and multiple support frames, the multiple support frames being connected between the circular track body and the ground, such that the circular track body is higher than the ground by a predetermined distance; the circular track is slidably connected to a hoisting mechanism, which is used to hoist the mechanical structural components;

[0006] The circular track is arranged clockwise with a primer front spraying station, a primer back spraying station, a topcoat front spraying station, and a topcoat back spraying station. The primer front spraying station includes a primer front spraying chamber and a first painting mechanism, a first water storage mechanism, and a first water distribution mechanism connected to the primer front spraying chamber. The first painting mechanism is used to spray primer onto the front of the mechanical structural parts, and the first water distribution mechanism can output water downwards to transport excess paint mist in the primer front spraying chamber to the first water storage mechanism.

[0007] The first spraying mechanism includes a spraying assembly, a robotic arm, and a support member; the support member is connected to the top surface of the primer front spraying chamber, the top of the robotic arm is connected to the support member, and the bottom of the robotic arm is connected to the spraying assembly, which sprays paint towards the mechanical structure in the primer front spraying chamber.

[0008] The first water storage mechanism includes a water storage tank and a connecting pipe. The water storage tank is connected to the bottom of the primer front spraying chamber, corresponding to the first water mechanism, so that the water in the first water distribution mechanism falls into the water storage tank for collection. One side of the connecting pipe is connected to the water storage tank, and the other side of the connecting pipe extends out of the primer front spraying chamber and has a feed inlet. Flocculant is added into the water storage tank through the feed inlet.

[0009] The first water distribution mechanism includes an inlet pipe and an inlet tank; one side of the inlet pipe is connected to the inlet tank, and the other side of the inlet pipe extends out of the primer front spraying chamber for connection with external pipelines, so that water flows into the water tank through the inlet pipe; the inlet tank is connected to the primer front spraying chamber at a preset distance from the ground, and an overflow trough is provided on the side of the inlet tank, so that the water in the inlet tank flows down to the water storage tank in a waterfall-like manner through the overflow trough.

[0010] The primer reverse spraying station includes a primer reverse spraying chamber, a second spraying mechanism connected to the primer reverse spraying chamber, a second water storage mechanism, and a second water distribution mechanism; the second spraying mechanism is used to spray primer onto the reverse side of mechanical structural parts, and the second water distribution mechanism can output water downwards to transport excess paint mist from the primer front spraying chamber to the second water storage mechanism.

[0011] The topcoat front spraying station includes a topcoat front spraying chamber and a third spraying mechanism, a third water storage mechanism, and a third water distribution mechanism connected to the topcoat front spraying chamber. The third spraying mechanism is used to spray primer onto the front of mechanical structural parts, and the third water distribution mechanism can output water downwards to transport excess paint mist in the topcoat front spraying chamber to the third water storage mechanism.

[0012] The topcoat reverse spraying station includes a topcoat reverse spraying chamber, a fourth spraying mechanism, a fourth water storage mechanism, and a fourth water distribution mechanism connected to the topcoat reverse spraying chamber; the fourth spraying mechanism is used to spray primer onto the reverse side of mechanical structural parts, and the fourth water distribution mechanism can output water downwards to transport excess paint mist in the topcoat reverse spraying chamber to the fourth water storage mechanism.

[0013] Multiple support frames are equally spaced along the length of the circular track. Each support frame includes a bottom support, a first side support, and a second side support. The bottom of the bottom support is connected to the top of the circular track body. The first side support is connected to one side of the bottom support along the length, and the second side support is connected to the other side of the bottom support along the length.

[0014] The first side frame is connected to one side of the circular track, and the second side frame is connected to the other side of the circular track.

[0015] The first side frame includes a first upright and a first connecting column. The first connecting column has a triangular structure. One side of the first connecting column is connected to the top of the first upright, and the other side of the first connecting column is connected to a support frame near the first end of the circular track. The second side frame includes a second upright and a second connecting column. The second connecting column has a triangular structure. One side of the second connecting column is connected to the top of the second upright, and the other side of the second connecting column is connected to a support frame near the second end of the circular track.

[0016] Due to the adoption of the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0017] 1. This application relates to a painting production line for mechanical structural components, including a circular track; the circular track includes a circular track body and multiple support frames, the multiple support frames being connected between the circular track body and the ground, such that the circular track body is higher than the ground by a predetermined distance; the circular track is slidably connected to a hoisting mechanism, which is used to suspend the mechanical structural components; the circular track is arranged in a clockwise direction with a primer front spraying station, a primer back spraying station, a topcoat front spraying station, and a topcoat back spraying station; the primer front spraying station includes a primer front spraying chamber and a first painting mechanism, a first water storage mechanism, and a first water distribution mechanism connected to the primer front spraying chamber; the first painting mechanism is used to spray primer onto the front of the mechanical structural components, and the first water distribution mechanism can output water downwards to transport excess paint mist in the primer front spraying chamber to the first water storage mechanism. The production line involved in this application can sequentially spray primer and topcoat onto mechanical structural components, avoiding the traditional method of transporting each component to a corresponding spraying device using robotic arms. This method involves multiple robotic arm structures and enables batch spraying, avoiding the traditional method of spraying one component at a time. Instead, it uses an assembly line approach, where primer and topcoat are sprayed through various spraying chambers, improving spraying efficiency. Furthermore, by spraying the mechanical structural components directly from the primer front and back spraying chambers, and the topcoat front and back spraying chambers, paint is prevented from spreading in the environment, avoiding personal injury and environmental pollution, and improving production and installation feasibility.

[0018] 2. In a preferred embodiment of this utility model, the first spraying mechanism includes a spraying assembly, a robotic arm, and a support member. The support member is connected to the top surface of the primer front spraying chamber, the top of the robotic arm is connected to the support member, and the bottom of the robotic arm is connected to the spraying assembly. The spraying assembly sprays paint onto the mechanical structural components inside the primer front spraying chamber. The support rod is used to connect the robotic arm to the top surface of the primer front spraying chamber. The robotic arm is used to rotate the spraying assembly, which can adjust the orientation of the spraying assembly. The spraying assembly includes a main pipe connected to the robotic arm, multiple spray pipes connected to the main pipe, and nozzles connected to the ends of the spray pipes. The main pipe is connected to the spray pipes and to an external pipeline. A pump is connected to the pipeline. Starting the pump can spray the primer in the pipeline through the spray pipes and the nozzles on the spray pipes into the primer front spraying chamber to spray the mechanical structural components.

[0019] 3. In a preferred embodiment of the present invention, the first water distribution mechanism includes a water inlet pipe and a water inlet tank; one side of the water inlet pipe is connected to the water inlet tank, and the other side of the water inlet pipe extends out of the primer front spraying chamber for connection with external pipelines, so that water flows into the water tank through the water inlet pipe; the water inlet tank is connected to the primer front spraying chamber at a predetermined distance from the ground, and an overflow groove is provided on the side of the water inlet tank, so that the water in the water inlet tank flows down to the water storage tank in a waterfall manner through the overflow groove. It is used to connect to the water inlet tank and can be connected to external pipelines through the water inlet pipe. Water flows into the water inlet tank through the external pipeline and the water inlet pipe. An overflow trough is opened on one side of the water inlet tank along the length of the water inlet tank. The overflow trough is located at the upper part of the height of the water inlet tank, so that the water flowing into the water inlet tank reaches the position of the overflow trough and exceeds the height of the overflow trough before flowing out from the overflow trough. Since the overflow trough extends along the length of the water inlet tank, the water flows down through the overflow trough in a waterfall-like manner, thereby impacting the paint mist in the primer front spraying chamber and washing away the excess paint mist into the water storage tank below.

[0020] 4. In a preferred embodiment of this utility model, the first water storage mechanism includes a water storage tank and a connecting pipe. The water storage tank is connected to the bottom of the primer front spraying chamber, corresponding to the first water mechanism, so that the water flow in the first water distribution mechanism falls into the water storage tank for collection. One side of the connecting pipe is connected to the water storage tank, and the other side of the connecting pipe extends out of the primer front spraying chamber and has an inlet. Flocculant is added to the water storage tank through the inlet. The water storage tank is connected to the bottom of the primer front spraying chamber and faces the first water distribution mechanism above. The waterfall-like water flow in the first water distribution mechanism can capture and carry away the paint mist, allowing it to flow down into the water storage tank below. Water slides down from the overflow groove of the water inlet tank to form a water curtain. During operation, the paint mist is sprayed onto the mechanical structural parts, and excess paint mist is captured by the water curtain and carried into the water storage tank under negative pressure. The connecting pipe extends out of the primer spraying chamber and has a feed inlet. Flocculant is added to the water storage tank through the feed inlet, and paint mist flocculant is added to the water storage tank. After the paint settles, it is manually dredged. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0022] Figure 1 This is a top view schematic diagram of a painting production line for mechanical structural parts according to one embodiment of this application;

[0023] Figure 2 This is a front view structural schematic diagram of a painting production line for mechanical structural parts according to one embodiment of this application;

[0024] Figure 3 This is a schematic diagram of the structure of a primer front spraying chamber in a paint spraying production line for mechanical structural parts, according to one embodiment of this application.

[0025] Figure 4 This is a schematic diagram of the structure of a drying chamber for a paint spraying production line for mechanical structural parts, according to one embodiment of this application.

[0026] In the picture,

[0027] 1. Circular track; 11. Circular track body; 12. Support frame;

[0028] 2. Primer front spraying station; 3. Primer back spraying station; 4. Topcoat front spraying station; 5. Topcoat back spraying station;

[0029] 6. First water storage mechanism; 61. Water storage tank; 62. Connecting pipe;

[0030] 7. First water distribution mechanism; 71. Water inlet pipe; 72. Water inlet tank;

[0031] 8. First side frame; 9. Second side frame; 10. Drying chamber; 13. Circulating air duct; 14. Combustion chamber; 15. Circulating fan; 16. Exhaust vent; 17. Overflow trough; 18. Lifting mechanism. Detailed Implementation

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0033] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "aspect," or "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0037] This utility model relates to a painting production line for mechanical structural components, such as... Figure 1-4 As shown, it includes a circular track 1; the circular track 1 includes a circular track body 11 and multiple support frames 12, the multiple support frames 12 are connected between the circular track body 11 and the ground, so that the circular track body 11 is higher than the ground by a preset distance; the circular track 1 is slidably connected to a hoisting mechanism 18, the hoisting mechanism 18 is used to hoist mechanical structural components.

[0038] The circular track 1 is arranged in a clockwise direction as follows: a primer front spraying station 2, a primer back spraying station 3, a topcoat front spraying station 4, and a topcoat back spraying station 5. The primer front spraying station 2 includes a primer front spraying chamber and a first painting mechanism, a first water storage mechanism 6, and a first water distribution mechanism 7 connected to the primer front spraying chamber. The first painting mechanism is used to spray primer onto the front of mechanical structural parts, and the first water distribution mechanism 7 can output water downwards to transport excess paint mist in the primer front spraying chamber to the first water storage mechanism 6.

[0039] like Figure 1 As shown, this application relates to a painting production line for mechanical structural parts, which can spray primer and topcoat onto mechanical structural parts. The primer and topcoat can be sprayed sequentially along the production line by hoisting, realizing automated production. This avoids the traditional need to use manual transfer or robotic arms to transport the parts to dedicated painting equipment for individual painting, reducing manpower and material resources, realizing automated assembly line operation, and improving painting efficiency.

[0040] like Figure 1 As shown, the mechanical structural component is hoisted by the hoisting mechanism 18, allowing it to move along the circular track body 11 under the action of the hoisting mechanism 18. The mechanical structural component moves clockwise from the left side of the circular track body 11 to the right side, first passing through the primer front spraying chamber of the primer front spraying station 2. The primer front spraying chamber is connected to the first spraying mechanism, the first water storage mechanism 6, and the first water distribution mechanism 7; as shown... Figure 1 As shown, the first spraying mechanism, the first water storage mechanism 6, and the first water distribution mechanism 7 are located on the left side of the primer front spraying chamber along the moving direction of the annular track body 11. Figure 1As shown, the first spraying mechanism, the first water storage mechanism 6, and the first water distribution mechanism 7 are located on the upper side. This arrangement is to be opposite to the layout of the primer reverse spraying chamber on the right, so that the front and back of the mechanical structure can be sprayed separately without flipping the mechanical structure. When the mechanical structure is transported to the primer front spraying chamber, the first spraying mechanism sprays the mechanical structure towards the front. The spray can spread throughout the primer front spraying chamber, fully spraying the front of the mechanical structure. After the front of the mechanical structure is sprayed, the mechanical structure continues to be transported forward under the action of the hoisting mechanism 18. The water flow in the first water distribution mechanism 7 flows out in a water curtain or waterfall-like manner to capture the paint mist in the primer front spraying chamber and transport the excess paint mist to the first water storage mechanism 6. The first water storage mechanism 6 contains flocculants, which can effectively further settle the suspended paint mist, which is beneficial for later collection and treatment.

[0041] In the same manner, the mechanical structural components are sequentially entered into the primer reverse coating chamber for painting on the reverse side, such as... Figure 1 As shown, the second painting mechanism, the second water storage mechanism, and the second water distribution mechanism are located below the primer reverse spraying chamber, which is the opposite of the layout above the primer front spraying chamber on the left. This arrangement eliminates the need to flip the mechanical components. The second painting mechanism sprays the mechanical components from the reverse side, and the spray can spread throughout the primer reverse spraying chamber, fully spraying the front of the mechanical components. After the reverse side of the mechanical components is painted, the mechanical components are moved forward by the hoisting mechanism 18. The water in the second water distribution mechanism flows downward in a waterfall-like manner, which can capture the paint mist in the primer reverse spraying chamber and transport the excess paint mist to the second water storage mechanism. The second water storage mechanism contains flocculants, which can effectively further settle the suspended paint mist, facilitating subsequent collection and treatment.

[0042] Following the above method, the front of the mechanical structural component is sprayed with topcoat through the front topcoat spray booth and the back of the mechanical structural component is sprayed with topcoat through the back topcoat spray booth.

[0043] In one preferred embodiment, the first spraying mechanism includes a spraying assembly, a robotic arm, and a support member; the support member is connected to the top surface of the primer front spraying chamber, the top of the robotic arm is connected to the support member, and the bottom of the robotic arm is connected to the spraying assembly, and the spraying assembly sprays paint toward the mechanical structure in the primer front spraying chamber.

[0044] The support rod is used to connect the robotic arm to the top surface of the primer front spraying chamber. The robotic arm is used to rotate the spraying assembly and can adjust the position of the spraying assembly. The spraying assembly includes a main pipe connected to the robotic arm, multiple spray pipes connected to the main pipe, and nozzles connected to the ends of the spray pipes. The main pipe is connected to the spray pipes and to external pipelines. A pump is connected to the pipelines. Starting the pump can spray the primer in the pipeline through the spray pipes and the nozzles on the spray pipes into the primer front spraying chamber to spray the mechanical structural parts.

[0045] In a preferred embodiment, the first water storage mechanism 6 includes a water storage tank 61 and a connecting pipe 62. The water storage tank 61 is connected to the bottom of the primer front spraying chamber, corresponding to the first water mechanism, so that the water in the first water distribution mechanism 7 flows down and is collected in the water storage tank 61. One side of the connecting pipe 62 is connected to the water storage tank 61, and the other side of the connecting pipe 62 extends out of the primer front spraying chamber and has a feed inlet, through which flocculant is added into the water storage tank 61.

[0046] like Figure 2 As shown, the water storage tank 61 is connected to the bottom of the primer front spraying chamber, directly opposite the first water distribution mechanism 7 above. The waterfall-like water flow in the first water distribution mechanism 7 can capture and carry away the paint mist, allowing it to flow down into the water storage tank 61 below. Water slides down from the overflow trough 17 of the water inlet tank 72 to form a water curtain. During operation, the paint is sprayed onto the mechanical structural parts, and excess paint mist is captured by the water curtain under negative pressure and carried into the water storage tank 61. The connecting pipe 62 extends out of the primer front spraying chamber and has a feed inlet. Flocculant is added to the water storage tank 61 through the feed inlet. After the paint mist flocculant settles, the accumulated paint is manually removed.

[0047] In a preferred embodiment, the first water distribution mechanism 7 includes a water inlet pipe 71 and a water inlet tank 72; one side of the water inlet pipe 71 is connected to the water inlet tank 72, and the other side of the water inlet pipe 71 extends out of the primer front spraying chamber for connection with external pipelines, so that water flows into the water tank through the water inlet pipe 71; the water inlet tank 72 is connected to the primer front spraying chamber at a predetermined distance from the ground, and an overflow groove 17 is provided on the side of the water inlet tank 72, so that the water in the water inlet tank 72 flows down to the water storage tank 61 in a waterfall manner through the overflow groove 17.

[0048] The inlet pipe 71 is used to connect to the inlet tank 72. Through the inlet pipe 71, it can connect to external pipelines, allowing water to flow from the external pipelines through the inlet pipe 71 into the inlet tank 72. Figure 2As shown, an overflow trough 17 is provided on one side of the water inlet tank 72 along the length of the water inlet tank 72. The overflow trough 17 is located at the upper part of the height direction of the water inlet tank 72, so that the water flowing into the water inlet tank 72 reaches the position of the overflow trough 17 and exceeds the height of the overflow trough 17 before flowing out from the overflow trough 17. Since the overflow trough 17 extends along the length direction of the water inlet tank 72, the water flows down through the overflow trough 17 in a waterfall-like manner, thereby impacting the paint mist in the primer front spraying chamber and washing away excess paint mist into the water storage tank 61 below.

[0049] It should be noted that a fan is also installed outside the primer spraying booth. The fan is a centrifugal fan with a power of 45KW and a wind pressure of 30000-3200Pa. The fan is connected to the exhaust port 16 through a 1mm thick galvanized air duct, which can extract the exhaust gas from the rear cavity of the primer spraying booth. By using a flexible connection between the air duct and the fan, the vibration of the booth is avoided.

[0050] In a preferred embodiment, the primer reverse spraying station 3 includes a primer reverse spraying chamber, a second spraying mechanism connected to the primer reverse spraying chamber, a second water storage mechanism, and a second water distribution mechanism; the second spraying mechanism is used to spray primer onto the reverse side of mechanical structural parts, and the second water distribution mechanism can output water downwards to transport excess paint mist in the primer front spraying chamber to the second water storage mechanism.

[0051] The second spraying mechanism in the primer reverse spraying chamber has the same structure as the first spraying mechanism in the primer front spraying chamber. The second water storage mechanism has the same structure as the first water storage mechanism 6, and the second water distribution mechanism has the same structure as the first water distribution mechanism 7, only their layout differs. The first spraying mechanism is located in the primer front spraying chamber. Figure 1 Above the position shown in Figure 1, the second spraying mechanism in the primer reverse spraying chamber is located below the primer reverse spraying chamber in the position shown in Figure 1. The first spraying mechanism and the second spraying mechanism are arranged on both sides of the extension direction of the annular track body 11, so that the front and back of the mechanical structure can be sprayed without flipping the mechanical structure.

[0052] In a preferred embodiment, the topcoat front spraying station 4 includes a topcoat front spraying chamber and a third spraying mechanism, a third water storage mechanism, and a third water distribution mechanism connected to the topcoat front spraying chamber; the third spraying mechanism is used to spray primer onto the front of the mechanical structural parts, and the third water distribution mechanism can output water downwards to transport excess paint mist in the topcoat front spraying chamber to the third water storage mechanism.

[0053] The third spraying mechanism in the topcoat spraying chamber has the same structure as the first spraying mechanism, the third water storage mechanism has the same structure as the first water storage mechanism 6, and the third water distribution mechanism has the same structure as the first water distribution mechanism 7, only with a different layout. Since the topcoat spraying chamber is located on the other side of the extension direction of the annular track body 11, and is positioned opposite the primer spraying chamber along the extension direction of the annular track body 11, the third spraying mechanism is placed in… Figure 1 As shown below, the front changes from facing upwards to facing downwards when the mechanical structure moves clockwise from the first side of the annular track body 11 to the second side of the annular track body 11.

[0054] In a preferred embodiment, the topcoat reverse spraying station 5 includes a topcoat reverse spraying chamber, a fourth spraying mechanism, a fourth water storage mechanism, and a fourth water distribution mechanism connected to the topcoat reverse spraying chamber; the fourth spraying mechanism is used to spray primer onto the reverse side of mechanical structural parts, and the fourth water distribution mechanism can output water downwards to transport excess paint mist in the topcoat reverse spraying chamber to the fourth water storage mechanism.

[0055] The fourth spraying mechanism in the topcoat reverse spraying chamber has the same structure as the first spraying mechanism, the fourth water storage mechanism has the same structure as the first water storage mechanism 6, and the fourth water distribution mechanism has the same structure as the first water distribution mechanism 7. These will not be elaborated on here.

[0056] In a preferred embodiment, a plurality of support frames 12 are arranged at equal intervals along the length of the annular track 1. Each support frame 12 includes a bottom support, a first side support, and a second side support. The bottom of the bottom support is connected to the top of the annular track body 11. The first side support is connected to one side of the bottom support along the length, and the second side support is connected to the other side of the bottom support along the length.

[0057] like Figure 1 As shown, the bottom of the bottom bracket is connected to the top of the annular track body 11. A first side bracket is connected to one side of the bottom bracket along its length, and a second side bracket is connected to the other side of the bottom bracket along its length. The first and second side brackets support the annular track body 11 above the ground, so that the annular track body 11 is at a certain height above the ground. This allows mechanical structural components to be hoisted and connected to the bottom of the annular track body 11 by the hoisting mechanism 18, and to move along the annular track body 11 to achieve the spraying of primer and topcoat. The bottom bracket is connected to the top of the annular track body 11 to avoid interference with the hoisting mechanism 18 at the bottom.

[0058] The hoisting mechanism 18 adopts a traditional hoisting structure, including but not limited to an electric slide rail, a crane, ropes, and hooks. The electric slide rail is slidably connected to the circular track body 11. A fixed seat is connected below the electric slide rail. The fixed seat can be a block structure formed by connecting multiple connecting plates. The fixed seat includes a closed structure formed by connecting a top plate, side plates, and a bottom plate. One end of the rope is connected to the fixed seat, and the other end of the rope extends downwards from the fixed seat. A hook is connected to the rope, and mechanical structural components are connected through the hook.

[0059] In a preferred embodiment, a first side frame 8 is connected to one side of the circular track 1, and a second side frame 9 is connected to the other side of the circular track 1. The first side frame 8 is connected to the first end on the left side along the length direction of the circular track 1, and the second side frame 9 is connected to the second end on the right side along the length direction of the circular track 1. The first side frame 8 and the second side frame 9 are used to strengthen the support of the circular track 1 and enhance its support strength for the mechanical structural components.

[0060] Furthermore, the first side frame 8 includes a first upright and a first connecting column. The first connecting column adopts a triangular structure. One side of the first connecting column is connected to the top of the first upright, and the other side of the first connecting column is connected to the support frame 12 near the first end of the circular track 1. The second side frame 9 includes a second upright and a second connecting column. The second connecting column adopts a triangular structure. One side of the second connecting column is connected to the top of the second upright, and the other side of the second connecting column is connected to the support frame 12 near the second end of the circular track 1.

[0061] In addition, it includes a drying chamber 10, with a circulating air duct 13 connected to the bottom of the drying chamber 10. The circulating air duct 13 is connected to a circulating fan 15, so that the circulating fan 15 can transport the combustion chamber 14. The combustion chamber 14 is connected to a burner, which can mix fuel (gas, liquid or solid) with air and ignite it to produce a controllable flame or heat energy. The high-temperature gas in the combustion chamber 14 is transported to the circulating air duct 13 by the circulating fan 15, and then transported to the drying chamber 10 to dry the mechanical components. A temperature probe can be connected to the drying chamber 10 to automatically sense the temperature inside the drying chamber 10, thereby adjusting the start and stop of the burner to keep the temperature inside the drying chamber 10 within a controllable range of ±10℃.

[0062] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0063] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0064] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A painting production line for mechanical structural components, characterized in that, It includes a circular track; the circular track includes a circular track body and multiple support frames, the multiple support frames are connected between the circular track body and the ground, so that the circular track body is higher than the ground by a predetermined distance; the circular track is slidably connected to a hoisting mechanism, which is used to hoist mechanical structural components; The circular track is arranged clockwise with a primer front spraying station, a primer back spraying station, a topcoat front spraying station, and a topcoat back spraying station. The primer front spraying station includes a primer front spraying chamber and a first painting mechanism, a first water storage mechanism, and a first water distribution mechanism connected to the primer front spraying chamber. The first painting mechanism is used to spray primer onto the front of the mechanical structural parts, and the first water distribution mechanism can output water downwards to transport excess paint mist in the primer front spraying chamber to the first water storage mechanism.

2. The painting production line for mechanical structural parts according to claim 1, characterized in that, The first painting mechanism includes a painting assembly, a robotic arm, and a support member; the support member is connected to the top surface of the primer front spraying chamber, the top of the robotic arm is connected to the support member, and the bottom of the robotic arm is connected to the painting assembly, which sprays paint towards the mechanical structure in the primer front spraying chamber.

3. A painting production line for mechanical structural parts according to claim 1, characterized in that, The first water storage mechanism includes a water storage tank and a connecting pipe. The water storage tank is connected to the bottom of the primer front spraying chamber, corresponding to the first water mechanism, so that the water in the first water distribution mechanism falls into the water storage tank for collection. One side of the connecting pipe is connected to the water storage tank, and the other side of the connecting pipe extends out of the primer front spraying chamber and has a feed inlet. Flocculant is added into the water storage tank through the feed inlet.

4. A painting production line for mechanical structural parts according to claim 3, characterized in that, The first water distribution mechanism includes an inlet pipe and an inlet tank; one side of the inlet pipe is connected to the inlet tank, and the other side of the inlet pipe extends out of the primer front spraying chamber for connection with external pipelines, so that water flows into the water tank through the inlet pipe; the inlet tank is connected to the primer front spraying chamber at a preset distance from the ground, and an overflow trough is provided on the side of the inlet tank, so that the water in the inlet tank flows down to the water storage tank in a waterfall-like manner through the overflow trough.

5. A painting production line for mechanical structural components according to claim 1, characterized in that, The primer reverse spraying station includes a primer reverse spraying chamber, a second spraying mechanism connected to the primer reverse spraying chamber, a second water storage mechanism, and a second water distribution mechanism; the second spraying mechanism is used to spray primer onto the reverse side of mechanical structural parts, and the second water distribution mechanism can output water downwards to transport excess paint mist from the primer front spraying chamber to the second water storage mechanism.

6. A painting production line for mechanical structural parts according to claim 1, characterized in that, The topcoat front spraying station includes a topcoat front spraying chamber and a third spraying mechanism, a third water storage mechanism, and a third water distribution mechanism connected to the topcoat front spraying chamber. The third spraying mechanism is used to spray primer onto the front of mechanical structural parts, and the third water distribution mechanism can output water downwards to transport excess paint mist in the topcoat front spraying chamber to the third water storage mechanism.

7. A painting production line for mechanical structural parts according to claim 1, characterized in that, The topcoat reverse spraying station includes a topcoat reverse spraying chamber, a fourth spraying mechanism, a fourth water storage mechanism, and a fourth water distribution mechanism connected to the topcoat reverse spraying chamber; the fourth spraying mechanism is used to spray primer onto the reverse side of mechanical structural parts, and the fourth water distribution mechanism can output water downwards to transport excess paint mist in the topcoat reverse spraying chamber to the fourth water storage mechanism.

8. A painting production line for mechanical structural parts according to claim 1, characterized in that, Multiple support frames are equally spaced along the length of the circular track. Each support frame includes a bottom support, a first side support, and a second side support. The bottom of the bottom support is connected to the top of the circular track body. The first side support is connected to one side of the bottom support along the length, and the second side support is connected to the other side of the bottom support along the length.

9. A painting production line for mechanical structural parts according to claim 1, characterized in that, The first side frame is connected to one side of the circular track, and the second side frame is connected to the other side of the circular track.

10. A painting production line for mechanical structural parts according to claim 9, characterized in that, The first side frame includes a first upright and a first connecting column. The first connecting column adopts a triangular structure. One side of the first connecting column is connected to the top of the first upright, and the other side of the first connecting column is connected to the support frame near the first end of the circular track. The second side frame includes a second upright and a second connecting column. The second connecting column adopts a triangular structure. One side of the second connecting column is connected to the top of the second upright, and the other side of the second connecting column is connected to the support frame near the second end of the circular track.