A painting system and method for solving paint masking issues on workpieces by lifting and flipping.

Abstract

This invention discloses a painting system and method for resolving workpiece paint obstruction through lifting and flipping. The system includes a paint rack mounted on a track via a traveling mechanism, with the bottom of the track supported by a hydraulic lifting mechanism. A vertical lifting mechanism, a planar rotation mechanism, and a vertical flipping mechanism are sequentially connected to the paint rack corresponding to a steel structural component. When the steel structural component is positioned, the vertical lifting mechanism lifts it away from the workpiece painting support surface of the paint rack. The vertical flipping mechanism drives the steel structural component, now detached from the workpiece painting support surface, to flip until an angle is formed between the steel structural component and the horizontal paint rack, thus exposing the remaining unpainted workpiece surface of the steel structural component that was previously obscured by the paint rack in a downward or upward tilted position. This invention, by lifting and flipping the steel structural component on the paint rack, can expose the remaining unpainted workpiece surface of the steel structural component that was previously obscured by the paint rack in a downward or upward tilted position, improving painting quality and efficiency.

Description

Technical Field

[0001] This invention belongs to the technical field of steel structure painting lifting equipment, and particularly relates to a painting system and method for solving the problem of paint obstruction on workpieces by lifting and flipping. Background Technology

[0002] Traditional steel structure painting uses fixed supports. For large-tonnage steel structures, the steel structure is placed on the support for manual painting. The support is usually 500mm high. Therefore, when the bottom of the steel structure needs to be painted, the worker needs to squat down to spray paint. In order to ensure the paint quality, the steel structure also needs to be turned over for painting. However, there is a problem of obstruction between the bottom of the steel structure and the support, which makes it difficult to carry out convenient and efficient complete painting work on this part of the structure. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, the present invention provides a painting system and method for solving the problem of paint obstruction on workpieces by lifting and flipping. By lifting and flipping the steel structure on the painting frame, the remaining unpainted workpiece surface that is obscured by the painting frame can be exposed in a tilted downward or tilted upward posture, thereby improving the painting quality and efficiency.

[0004] Technical solution: To achieve the above objectives, the present invention provides a painting system for solving the problem of paint obstruction on workpieces by lifting and flipping, including a painting frame set on a track by a walking mechanism, the bottom of the track being supported by a hydraulic lifting mechanism, and the top surface of the painting frame serving as a workpiece painting support surface for supporting steel structural components.

[0005] A vertical lifting mechanism, a planar rotation mechanism, and a vertical flipping mechanism are sequentially connected to the steel structural component on the paint spraying frame. When the steel structural component is not positioned, the planar rotation mechanism drives the vertical lifting mechanism to rotate in the plane to a position that is vertically misaligned with the steel structural component. When the steel structural component is positioned, the vertical lifting mechanism lifts the steel structural component away from the workpiece painting support surface of the paint spraying frame. The vertical flipping mechanism drives the steel structural component, which has been detached from the workpiece painting support surface, to flip over until an angle is formed between the steel structural component and the horizontal paint spraying frame, so that the remaining unpainted workpiece surface of the steel structural component, which was previously covered by the paint spraying frame, is exposed in a tilted downward or tilted upward posture.

[0006] Furthermore, the vertical lifting mechanism includes an air plate that provides lifting driving force through a cylinder. The air plate has air nozzles arranged on its surface facing the steel structure on the paint spraying frame, which are connected to the internal air chambers. The air chambers connecting the air plate are respectively provided with an air inlet port connected to an air intake electric valve and an air outlet port connected to an air suction electric valve. The air intake electric valve is connected to an air supply device through an air intake pipe, and the air suction electric valve is connected to an air suction device through an air outlet pipe.

[0007] The nozzle has a blowing state and a suction state; as the cylinder drives the air plate to gradually rise toward the steel structure, the nozzle is in a blowing state toward the steel structure to dry the paint on the bottom of the steel structure; and when the nozzle contacts the bottom surface of the steel structure, the nozzle changes from the blowing state to the suction state to adsorb and position the steel structure through the suction nozzle.

[0008] Furthermore, the air nozzle is sealed and adsorbed with the steel structural component when positioning it.

[0009] Furthermore, the planar rotation mechanism includes a fixed-point rotation plate driven by a rotation drive unit. The fixed-point rotation plate is located outside the paint spray frame. The cylinder is mounted on the fixed-point rotation plate, and the cylinder extends out of the structural part of the paint spray frame corresponding to the steel structural component.

[0010] Furthermore, the vertical flipping mechanism includes a flipping plate and a fixed base connected by a rotating shaft. The fixed base is installed on the paint spraying frame. The fixed-point rotating plate and the rotation drive unit are both set on the flipping plate. The fixed base is provided with a flipping drive unit that drives the flipping plate to perform the flipping action.

[0011] Furthermore, the walking mechanism is composed of a grooved wheel driven by the walking drive unit. The grooved wheel supports the paint spraying frame and drives the paint spraying frame to walk along the track laying extension direction by the driving force provided by the walking drive unit. The grooved wheel is correspondingly equipped with a brake that cooperates with its wheel axle.

[0012] Furthermore, the hydraulic lifting mechanism includes hydraulic cylinders, and each hydraulic cylinder operates synchronously through a matching hydraulic throttle valve.

[0013] Furthermore, it includes a hydraulic cylinder bracket corresponding to the hydraulic cylinder, wherein the hydraulic cylinder is built into the mounting cavity of the hydraulic cylinder bracket, and the cylinder body is protected by the hydraulic cylinder bracket.

[0014] The lifting and tilting method of a painting system to solve the problem of paint obstruction on workpieces is as follows:

[0015] Step 1: Place the steel structure to be painted on the paint spraying rack. First, drive the vertical lifting mechanism to rotate the plane to a position that is vertically misaligned with the steel structure to prevent the atomized paint from falling onto the air plate during painting.

[0016] Step 2: Through the lifting drive of the hydraulic cylinder, the walking drive of the traveling mechanism, and the movement of the painting robot, the top surface, sides, and unmasked parts of the steel structure on the painting frame are painted.

[0017] Step 3: In "Step 2", due to the overlapping and obstruction between the bottom surface of the steel structure and the workpiece painting support surface of the spray gun, the steel structure is obstructed by the spray gun and cannot be painted in "Step 2". The painting operation for this obstructed part is as follows:

[0018] The suction electric valve is closed, and the intake electric valve is opened. The cylinder drives the air plate to gradually rise towards the steel structure. During the rise, air is blown from the nozzles on the air plate to dry the paint on the unmasked parts of the steel structure that extend beyond the paint rack. The moment the nozzles contact the air plate, the intake electric valve is closed and the suction electric valve is opened, and the nozzles switch from blowing to suction to adsorb and position the steel structure. The cylinder continues to drive the air plate to rise, lifting the steel structure off the paint rack's workpiece painting support surface. Then, the vertical flipping mechanism drives the steel structure off the workpiece painting support surface to flip until it forms an angle with the horizontal paint rack. This exposes the remaining unpainted parts of the steel structure that were previously covered by the paint rack, tilting downwards or upwards. Finally, the lifting drive of the hydraulic cylinder, the walking drive of the traveling mechanism, and the movement of the painting robot are used to paint the remaining unpainted parts of the steel structure.

[0019] Beneficial effects: By lifting and flipping the steel structural components on the spray painting frame, the present invention can expose the remaining unpainted workpiece surfaces that were previously covered by the spray painting frame in a tilted downward or tilted upward posture, thereby facilitating the painting operation and shortening the interval between the workpiece and the previously painted uncovered parts and the subsequently painted covered parts, thus improving the painting quality and efficiency. Attached Figure Description

[0020] Appendix Figure 1 This is a schematic diagram of the paint spraying lifting device of the present invention after installation.

[0021] Appendix Figure 2 This is a schematic diagram of the overall structure of the paint spraying lifting device of the present invention;

[0022] Appendix Figure 3 This is a structural diagram of the walking mechanism, paint spraying rack, vertical lifting mechanism, planar rotation mechanism, and vertical tilting mechanism;

[0023] Appendix Figure 4 A schematic diagram of the structure in which the air plate gradually rises toward the steel structural component to allow the paint to dry and the adsorption positioning process.

[0024] Appendix Figure 5 This is a schematic diagram of a steel structural component in the state of being painted on the support surface of the workpiece after it has been removed from the paint spraying frame.

[0025] Appendix Figure 6 This is a schematic diagram of a steel structural component flipped up to form an angle with a horizontal paint spraying rack. Detailed Implementation

[0026] The invention will now be further described with reference to the accompanying drawings.

[0027] As attached Figure 1 Appendix Figure 2 Appendix Figure 4 Appendix Figure 5 and appendix Figure 6 As shown, the painting system for solving workpiece paint obstruction through lifting and tilting includes a paint rack 4 mounted on a track 2 via a traveling mechanism 3. The bottom of the track 2 is supported by a hydraulic lifting mechanism 1, and the top surface of the paint rack 4 serves as a workpiece painting support surface for supporting the steel structure 10. Corresponding to the steel structure 10, a vertical lifting mechanism 6, a planar rotation mechanism 7, and a vertical tilting mechanism 8 are sequentially connected and mounted on the paint rack 4. When the vertical lifting mechanism 6 is not in the position of the steel structure 10, the planar rotation mechanism 7 drives the vertical tilting mechanism 6. The lifting mechanism 6 rotates in the plane to a position vertically offset from the steel structure component 10. With the steel structure component 10 positioned, the vertical lifting mechanism 6 lifts the steel structure component 10 away from the workpiece painting support surface of the paint spraying frame 4. The vertical flipping mechanism 8 drives the steel structure component 10, now detached from the workpiece painting support surface, to flip until an angle is formed between the steel structure component 10 and the horizontal paint spraying frame 4, so that the remaining unpainted workpiece surface of the steel structure component 10, previously obscured by the paint spraying frame 4, is exposed in a downward or upward tilted posture. This invention, by lifting and flipping the steel structure component 10 on the paint spraying frame 4, allows the remaining unpainted workpiece surface of the steel structure component 10, previously obscured by the paint spraying frame 4, to be exposed in a downward or upward tilted posture, thus facilitating painting operations and shortening the interval between the workpiece and the previously painted un-obscured portion and the subsequently painted obscured portion, thereby improving painting quality and efficiency.

[0028] As attached Figure 3As shown, the vertical lifting mechanism 6 includes an air plate 62 that provides lifting driving force through a cylinder 61. Air nozzles 63 are arranged on the surface of the air plate 62 facing the steel structure 10 on the paint spraying rack 4, guiding the internal air chambers. The air chambers of the air plate 62 are respectively connected to the inlet port of an inlet electric valve 64 and the outlet port of a suction electric valve 65. The inlet electric valve 64 is connected to an air supply device through an inlet pipe, and the suction electric valve 65 is connected to a suction device through an outlet pipe. The air nozzles 63 have both blowing and suction states. During the process of the cylinder 61 driving the air plate 62 to gradually rise towards the steel structure 10, the air nozzles 63 are in a blowing state towards the steel structure 10, drying the paint surface on the bottom of the steel structure 10. And when the air nozzles 63 contact the bottom surface of the steel structure 10, the air nozzles 63 switch from the blowing state to the suction state, so as to adsorb and position the steel structure 10 through the suction air nozzles 63. The liftable air plate 62 has two functions: blowing air to dry and adsorbing and positioning the steel structure component 10. Blowing air to dry is to prepare for adsorption and positioning and ensure the stability of adsorption and positioning. Adsorption and positioning is to prepare for subsequent lifting and flipping of the steel structure component 10.

[0029] To ensure the stability of the adsorption positioning, the air seal is very important. Therefore, the air nozzle 63 is sealed and adsorbed with the steel structure 10 when positioning the steel structure 10. Specifically, a sealing gasket is installed on the air nozzle 63 to achieve the seal.

[0030] As attached Figure 3 As shown, the planar rotation mechanism 7 includes a fixed-point rotation plate 71 driven by a rotation drive unit 72. The fixed-point rotation plate 71 is located outside the paint spray frame 4. The cylinder 61 is mounted on the fixed-point rotation plate 71. The air plate 62 extends out of the structural part of the paint spray frame 4 corresponding to the steel structural member 10. The reason why the planar rotation mechanism 7 is needed to rotate and adjust the steel structural member 10 in the horizontal plane is to prevent the atomized paint from falling onto the air plate 62 during the first paint spraying.

[0031] As attached Figure 3 As shown, the vertical flipping mechanism 8 includes a flipping plate 81 connected by a rotating shaft and a fixed base 83. The fixed base 83 is mounted on the paint spray frame 4. The fixed-point rotating plate 71 and the rotation drive unit 72 are both disposed on the flipping plate 81. The fixed base 83 is provided with a flipping drive unit 82 that drives the flipping plate 81 to perform a flipping action. The flipping plate 81 and the two fixed-point rotating plates 71 form a movable frame with a U-shaped structure, and the two side arms of the movable frame can swing.

[0032] As attached Figure 3As shown, the walking mechanism 3 is composed of a grooved wheel 31 driven by the walking drive unit 32. The grooved wheel 31 supports the paint spraying frame 4 and drives the paint spraying frame 4 to walk along the extension direction of the track 2 by the driving force provided by the walking drive unit 32. The grooved wheel 31 is correspondingly provided with a brake 9 that cooperates with its wheel axle.

[0033] In this invention, the rotation drive unit 72, the flip drive unit 82, and the walking drive unit 32 are all motors. Whether a servo motor or a regular drive motor is used is determined by the engineer based on the specific circumstances.

[0034] The hydraulic lifting mechanism 1 includes hydraulic cylinders, and each hydraulic cylinder operates synchronously through a matching hydraulic throttle valve.

[0035] The present invention includes a hydraulic cylinder bracket 11 corresponding to a hydraulic cylinder, wherein the hydraulic cylinder is built into the mounting cavity of the hydraulic cylinder bracket 11, and the cylinder body is protected by the hydraulic cylinder bracket 11.

[0036] The lifting and tilting method of a painting system to solve the problem of paint obstruction on workpieces is as follows:

[0037] Step 1: Place the steel structure 10 to be painted on the paint spraying frame 4. First, drive the vertical lifting mechanism 6 to rotate in the plane to a position that is vertically misaligned with the steel structure 10 through the plane rotation mechanism 7, so as to avoid the atomized paint falling on the air plate 62 during painting.

[0038] Step 2: Through the lifting drive of the hydraulic cylinder, the walking drive of the walking mechanism 3, and the movement coordination of the painting robot, the top surface, sides, and unmasked structural parts of the steel structure 10 on the painting frame 4 are painted.

[0039] Step 3: In "Step 2", since the bottom surface of the steel structure component 10 and the workpiece painting support surface of the paint spraying frame 4 are covered and obstructed, the steel structure component 10 is obstructed by the paint spraying frame 4 and cannot be painted in "Step 2". The painting operation for this obstructed part is as follows:

[0040] The suction electric valve 65 is closed, and the intake electric valve 64 is opened. The cylinder 61 drives the air plate 62 to gradually rise towards the steel structure 10. During the rise, air is blown from the air nozzle 63 on the air plate 62 to dry the paint on the unmasked parts of the steel structure 10 that extend beyond the paint frame 4. The moment the air nozzle 63 contacts the air plate 62, the intake electric valve 64 is closed, and the suction electric valve 65 is opened. The air nozzle 63 switches from blowing to suction to adsorb and position the steel structure 10. The cylinder 61 continues to drive the air plate 62 to rise, thereby lifting the steel structure 10 away from the workpiece painting support of the paint frame 4. Next, the vertical flipping mechanism 8 drives the steel structure 10, which has detached from the workpiece painting support surface, to flip until an angle is formed between the steel structure 10 and the horizontal paint frame 4. This exposes the remaining unpainted workpiece surface of the steel structure 10 that was previously covered by the paint frame 4, in a tilted downward or tilted upward posture. That is, the covering part of the steel structure 10 is exposed in a tilted downward or tilted upward state. Finally, the lifting drive of the hydraulic cylinder, the walking drive of the walking mechanism 3, and the movement of the painting robot are used to paint the remaining unpainted workpiece surface of the steel structure 10.

[0041] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A painting system for solving the problem of workpiece paint obstruction by lifting and flipping, including a paint rack (4) set on a track (2) by a walking mechanism (3), the bottom of the track (2) is supported by a hydraulic lifting mechanism (1), and the top surface of the paint rack (4) is the workpiece painting support surface that supports the steel structure (10); Its features are: A vertical lifting mechanism (6), a planar rotation mechanism (7), and a vertical flipping mechanism (8) are sequentially connected to the steel structure component (10) on the paint spraying frame (4). When the steel structure component (10) is not positioned, the planar rotation mechanism (7) drives the vertical lifting mechanism (6) to rotate in the plane to a position that is vertically misaligned with the steel structure component (10). When the steel structure component (10) is positioned, the vertical lifting mechanism (6) lifts the steel structure component (10) away from the workpiece painting support surface of the paint spraying frame (4). The vertical flipping mechanism (8) drives the steel structure component (10) that has been separated from the workpiece painting support surface to flip, flipping it so that an angle is formed between the steel structure component (10) and the horizontal paint spraying frame (4), so that the remaining unpainted workpiece surface of the steel structure component (10) that is covered by the paint spraying frame (4) is exposed in a tilted downward or tilted upward posture. The vertical lifting mechanism (6) includes an air plate (62) that provides lifting driving force through a cylinder (61). The air plate (62) has air nozzles (63) arranged on the plate surface facing the steel structure (10) on the paint sprayer (4) to guide the internal air chamber. The air chamber of the air plate (62) is provided with an air inlet port that is connected to the air inlet electric valve (64) and an air outlet port that is connected to the air suction electric valve (65). The air inlet electric valve (64) is connected to the air supply equipment through the air inlet pipe, and the air suction electric valve (65) is connected to the air suction equipment through the air outlet pipe. The nozzle (63) includes a blowing state and a suction state; as the cylinder (61) drives the air plate (62) to gradually rise toward the steel structure (10), the nozzle (63) is in a blowing state toward the steel structure (10) to dry the paint on the bottom of the steel structure (10); and when the nozzle (63) contacts the bottom surface of the steel structure (10), the nozzle (63) changes from the blowing state to the suction state so as to adsorb and position the steel structure (10) through the suction nozzle (63).

2. The painting system for solving workpiece paint obstruction by lifting and flipping according to claim 1, characterized in that: The air nozzle (63) is sealed and adsorbed with the steel structure component (10) when positioning the steel structure component (10).

3. The painting system for solving workpiece paint obstruction by lifting and flipping according to claim 1, characterized in that: The planar rotation mechanism (7) includes a fixed-point rotation plate (71) driven by a rotation drive unit (72). The fixed-point rotation plate (71) is located outside the paint spray frame (4). The cylinder (61) is mounted on the fixed-point rotation plate (71). The air plate (62) extends out of the structural part of the paint spray frame (4) corresponding to the steel structural member (10).

4. The painting system for solving workpiece paint obstruction by lifting and flipping according to claim 3, characterized in that: The vertical flipping mechanism (8) includes a flipping plate (81) connected by a rotating shaft and a fixed seat (83). The fixed seat (83) is installed on the paint spraying frame (4). The fixed-point rotating plate (71) and the rotating drive unit (72) are both set on the flipping plate (81). The fixed seat (83) is provided with a flipping drive unit (82) that drives the flipping plate (81) to perform the flipping action.

5. The painting system for solving workpiece paint obstruction by lifting and flipping according to claim 4, characterized in that: The walking mechanism (3) is composed of a grooved wheel (31) driven by the walking drive unit (32). The grooved wheel (31) supports the paint spraying frame (4) and drives the paint spraying frame (4) to walk along the extension direction of the track (2) by the driving force provided by the walking drive unit (32). The grooved wheel (31) is equipped with a brake (9) that cooperates with its wheel axle.

6. The painting system for solving workpiece paint obstruction by lifting and flipping according to claim 5, characterized in that: The hydraulic lifting mechanism (1) includes hydraulic cylinders, and each hydraulic cylinder operates synchronously through a matching hydraulic throttle valve.

7. The painting system for solving workpiece paint obstruction by lifting and flipping according to claim 5, characterized in that: Includes a hydraulic cylinder bracket (11) corresponding to the hydraulic cylinder, wherein the hydraulic cylinder is built into the mounting cavity of the hydraulic cylinder bracket (11) and the cylinder body is protected by the hydraulic cylinder bracket (11).

8. The lifting and flipping painting method of the painting system for solving the problem of paint obstruction on workpieces according to claim 6, characterized in that: The specific steps are as follows: Step 1: Place the steel structure component (10) to be painted on the paint spraying frame (4). First, drive the vertical lifting mechanism (6) to rotate in the plane to a position that is vertically misaligned with the steel structure component (10) through the plane rotation mechanism (7) to avoid the atomized paint falling on the air plate (62) during painting. Step 2: Through the lifting drive of the hydraulic cylinder, the walking drive of the walking mechanism (3) and the movement coordination of the painting robot, the top surface, side surface and unmasked part of the steel structure (10) on the painting frame (4) are painted. Step 3: In "Step 2", since the bottom surface of the steel structure component (10) and the workpiece painting support surface of the spray painting frame (4) are covered and obstructed, the steel structure component (10) is obstructed by the spray painting frame (4) and cannot be painted in "Step 2". The operation of painting the obstructed part is as follows: Close the suction electric valve (65) and open the intake electric valve (64). The cylinder (61) drives the air plate (62) to gradually rise toward the steel structure (10). During the rise, air is blown from the nozzle (63) on the air plate (62) to dry the unmasked part of the steel structure (10) that extends beyond the paint rack (4). When the nozzle (63) contacts the air plate (62), close the intake electric valve (64) and open the suction electric valve (65). The nozzle (63) switches from blowing to suction to adsorb and position the steel structure (10). The cylinder (61) continues to drive the air plate (62) to rise, thereby lifting the steel structure (10) away from the paint rack. The workpiece painting support surface of the frame (4) is then used. Next, the steel structure (10) that is separated from the workpiece painting support surface is driven to flip by the vertical flipping mechanism (8) until it is flipped to form an angle between the steel structure (10) and the horizontal painting frame (4). This makes the remaining unpainted workpiece surface of the steel structure (10) that is covered by the painting frame (4) appear in a tilted downward or tilted upward posture. That is, the covering part of the steel structure (10) is exposed in a tilted downward or tilted upward state. Finally, the remaining unpainted workpiece surface of the steel structure (10) is painted by the lifting drive of the hydraulic cylinder, the walking drive of the walking mechanism (3) and the movement of the painting robot.

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