An automatic spray painting device for array tube bundles

Abstract

The invention discloses an array tube bundle automatic painting device, which mainly includes an array tube bundle workpiece, a gantry walking mechanism, a painting device lateral walking mechanism, and a painting device lifting mechanism. The gantry walking mechanism mainly includes a gantry, a gantry top beam, a T-shaped guide rail, and a painting gantry steel support. The gantry top beam is fixed to the upper end of the painting gantry steel support. The gantry top beam is provided with a T-shaped guide rail, and the gantry is slidably connected to the T-shaped guide rail. The gantry has a movable fixed painting device lateral walking mechanism, the painting device lateral walking mechanism can move with the gantry on the T-shaped guide rail, the painting device lateral walking mechanism can be lifted and lowered on the fixed painting device lifting mechanism, and the airless sprayer is fixed on the painting device lateral walking mechanism. The device is simple to manufacture, has a high degree of automation, effectively reduces the amount of paint used, reduces the labor of workers, has a wide range of applications, and improves the painting efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical processing, and in particular relates to an automatic painting device for an array tube bundle. Background Art

[0002] The economizer, superheater and reheater of the boiler are all arranged in array tube bundles. The current painting process of manufacturing companies is basically to paint a single tube first and then assemble it into modules. After the assembly is completed, the damaged paint area is manually repainted. The painting efficiency is low. The paint on the tube surface is seriously contaminated and damaged during the module assembly process. The manual repainting at the later stage takes a lot of time, wasting unnecessary manufacturing costs. Summary of the invention

[0003] The purpose of the present invention is to propose an array tube bundle automatic painting device, which overcomes the above-mentioned shortcomings of the prior art, is simple to manufacture, has a high degree of automation, effectively reduces the amount of paint used, reduces the workload of workers, has a wide range of applications, and improves painting efficiency.

[0004] In order to achieve the above-mentioned design objectives, the technical solutions adopted by the present invention are as follows:

[0005] An array tube bundle automatic painting device mainly includes an array tube bundle workpiece, a gantry walking mechanism, a painting device lateral walking mechanism, and a painting device lifting mechanism. The gantry walking mechanism mainly includes a gantry, a gantry top beam, a T-shaped guide rail, and a painting gantry steel support. The gantry top beam is fixed to the upper end of the painting gantry steel support. The gantry top beam is provided with a T-shaped guide rail, which is rollingly connected to the gantry. The gantry is provided with a movable lateral walking mechanism for a fixed painting device. The lateral walking mechanism of the painting device can move on the T-shaped guide rail with the gantry. The lateral walking mechanism of the painting device is provided with a detachable fixed painting device lifting mechanism. An airless sprayer is fixed on the gantry longitudinal walking mechanism.

[0006] The gantry is fixed with a gantry travel motor, an output end of the gantry travel motor is synchronously connected to a motor drive sprocket by a shaft, the motor drive sprocket is synchronously connected to a gantry travel sprocket via a chain, the gantry travel sprocket is synchronously sleeved on a gantry travel shaft, the gantry travel shaft is fixed to the gantry via a bearing assembly, both ends of the gantry travel shaft are synchronously connected to gantry travel rollers via couplings, and the gantry travel rollers are rotatably arranged on a T-shaped guide rail.

[0007] An operating platform guardrail is arranged around the gantry, and a ladder extending to the bottom of the gantry-type walking mechanism is arranged on one side of the gantry.

[0008] The gantry is provided with a guide rail brake near the T-shaped guide rail.

[0009] The transverse walking mechanism of the paint spraying device mainly includes left and right direction walking motors of the paint spraying device, a transverse walking coupling of the paint spraying device, a bearing installation assembly of the paint spraying device, a transverse walking shaft of the paint spraying device, a motor driving sprocket of the paint spraying device, a transverse walking roller of the paint spraying device, and a T-shaped guide rail of the walking mechanism. Both ends of the T-shaped guide rail of the walking mechanism are fixed on the gantry. A movably fixed transverse walking base is on the T-shaped guide rail of the walking mechanism. The left and right direction walking motors of the paint spraying device are fixed on the transverse walking base. The output ends of the left and right direction walking motors of the paint spraying device are synchronously connected to the motor driving sprocket of the paint spraying device through a chain. The motor driving sprocket of the paint spraying device is synchronously sleeved on the transverse walking shaft of the paint spraying device. The transverse walking shaft of the paint spraying device is fixed on the transverse walking base through the bearing installation assembly of the paint spraying device. Both ends of the transverse walking shaft of the paint spraying device are respectively connected to the transverse walking roller of the paint spraying device through the transverse walking coupling of the paint spraying device. The transverse walking roller of the paint spraying device can be rotatably arranged on the T-shaped guide rail of the walking mechanism.

[0010] The paint spraying device trolley bracket is fixed on the horizontal walking base of the horizontal walking mechanism of the paint spraying device; the paint spraying device lifting mechanism mainly includes a spray gun lifting guide rail, a paint spraying rod mounting base plate, a paint spraying rod adjustment plate, a paint spraying device lifting active shaft, an extended paint spraying pipe, a paint nozzle, a spray gun lifting motor, and a paint spraying device lifting slider. The spray gun lifting guide rail is vertically fixed on the paint spraying device trolley bracket, a paint spraying device lifting slider is arranged on the spray gun lifting guide rail, a paint spraying rod mounting base plate is fixed on the paint spraying rod mounting base plate, a paint spraying rod adjustment plate is fixed on the paint spraying rod mounting base plate, an extended paint spraying pipe is connected to the paint spraying rod adjustment plate, and the extended paint spraying pipe A paint nozzle is provided at the lower end, the extended paint spraying tube is connected to the airless sprayer, the spray gun lifting motor is fixed on the horizontal walking base, the output end of the spray gun lifting motor is synchronously connected to the paint spraying device lifting active shaft through a chain, the paint spraying device lifting active shaft is connected to the horizontal walking base through a bearing assembly, the paint spraying device lifting active shaft is synchronously sleeved on the paint spraying device lifting active shaft, the paint spraying device coupling is synchronously connected to the paint spraying device lifting driven shaft through a paint spraying device lifting zipper, the paint spraying device lifting driven shaft is connected to the top of the paint spraying device trolley bracket; the paint spraying device lifting zipper is synchronously fixed to the paint spraying rod mounting base.

[0011] The array tube bundle workpiece is placed below the top beam of the gantry.

[0012] The beneficial effect of the automatic spray painting device for array tube bundles of the present invention is that the operator only needs to transport the array tube bundle workpiece to the bottom of the gantry and adjust the level, set the relevant parameters, adjust and match the four spray rods according to the spacing of the array tube bundles, and then spray paint from top to bottom longitudinally and reciprocatingly through the lifting mechanism of the spray painting device. The operator stands on the top platform of the gantry to operate. The limit switches can be used to adjust the limit at both ends of the gantry to avoid over-spraying, and the thickness of the paint film can be controlled by adjusting the gantry travel speed on the operation panel. The device is simple to manufacture, has a high degree of automation, effectively reduces the amount of paint used, reduces the labor of workers, has a wide range of applications, and improves the efficiency of spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the automatic painting device for array tube bundles of the present invention;

[0014] Figure 2 It is a schematic diagram of the gantry type walking mechanism of the present invention;

[0015] Figure 3 It is a schematic diagram of the lateral travel mechanism of the paint spraying device of the present invention;

[0016] Figure 4 is a schematic diagram of the lateral walking mechanism of the paint spraying device of the present invention from another angle;

[0017] Figure 5 It is a schematic diagram of the lifting mechanism of the paint spraying device of the present invention;

[0018] Figure 6 It is a schematic diagram from another angle of the lifting mechanism of the paint spraying device described in the present invention. DETAILED DESCRIPTION

[0019] like Figure 1-6 As shown, in the embodiment of the present invention, the array tube bundle automatic painting device mainly includes an array tube bundle workpiece 1, a gantry walking mechanism 300, a painting device transverse walking mechanism 400, and a painting device lifting mechanism 500. The gantry walking mechanism 300 mainly includes a gantry, a gantry top beam 2, a T-shaped guide rail 32, and a painting gantry steel support 34. The gantry top beam 2 is fixed to the upper end of the painting gantry steel support 34. The gantry top beam 2 is provided with a T-shaped guide rail 32, and the T-shaped guide rail 32 is slidably connected to the gantry. The gantry is provided with a movable fixed painting device transverse walking mechanism 400, which can move with the gantry on the T-shaped guide rail 32, and the painting device transverse walking mechanism 400 is provided with a fixed painting device lifting mechanism 500 that can be raised and lowered on the painting device transverse walking mechanism 400. The airless sprayer 8 is fixed on the gantry longitudinal walking mechanism 300.

[0020] The gantry is fixed with a gantry travel motor 3, the output end of the gantry travel motor 3 is synchronously connected to a motor drive sprocket 14, the motor drive sprocket 14 is synchronously connected to a gantry travel sprocket 12 through a chain 13, the gantry travel sprocket 12 is synchronously sleeved on a gantry travel shaft 17, the gantry travel shaft 17 is fixed to the gantry through a bearing assembly 23, both ends of the gantry travel shaft 17 are synchronously connected to a gantry travel roller 11 through a coupling 18, and the gantry travel roller 11 is rotatably arranged on a T-shaped guide rail 32; when in use, the travel motor drives the gantry travel shaft to rotate through the sprocket and chain, the travel shaft is connected to the travel roller through the coupling, and the rotational motion of the motor is converted into a linear reciprocating motion of the roller, so as to complete the painting operation in the length direction of the entire array tube bundle.

[0021] An operating platform guardrail 4 is arranged around the gantry, and a ladder 9 extending to the bottom of the gantry-type walking mechanism 300 is arranged on one side of the gantry.

[0022] The gantry is provided with a guide rail brake 10 near the T-shaped guide rail 32 .

[0023] The paint spraying device transverse walking mechanism 400 mainly includes a paint spraying device left and right direction walking motor 16, a paint spraying device transverse walking coupling 21, a paint spraying device bearing installation assembly 31, a paint spraying device transverse walking shaft 19, a paint spraying device motor driving sprocket 20, a paint spraying device transverse walking roller 22, and a walking mechanism T-shaped guide rail 35. Both ends of the walking mechanism T-shaped guide rail 35 are fixed on the gantry, and a movable fixed transverse walking base is on the walking mechanism T-shaped guide rail 35. The paint spraying device left and right direction walking motor 16 is fixed on the transverse walking base. The output end of the paint spraying device left and right direction walking motor 16 is synchronously connected to the paint spraying device motor driving sprocket 20 through a chain. The paint spraying device motor The driving sprocket 20 is synchronously sleeved on the transverse walking shaft 19 of the painting device. The transverse walking shaft 19 of the painting device is fixed on the transverse walking base through the bearing mounting assembly 31 of the painting device. The two ends of the transverse walking shaft 19 of the painting device are respectively connected to the transverse walking roller 22 of the painting device through the transverse walking coupling 21 of the painting device. The transverse walking roller 22 of the painting device is rotatably set on the T-shaped guide rail 35 of the walking mechanism. The walking motor drives the transverse walking shaft of the painting device to rotate through the sprocket and chain. The walking shaft is connected to the walking roller through the coupling, and the rotational motion of the motor is converted into the linear reciprocating motion of the roller, so as to complete the painting operation of different transverse spacings of the entire array tube bundle.

[0024] The paint spraying device trolley bracket 7 is fixed on the horizontal walking base of the paint spraying device horizontal walking mechanism 400; the paint spraying device lifting mechanism 500 mainly includes a spray gun lifting guide rail 5, a paint spraying rod mounting base plate 26, a paint spraying rod adjustment plate 25, a paint spraying device lifting active shaft 24, an extended paint spraying pipe 28, a paint nozzle 33, a spray gun lifting motor 6, and a paint spraying device lifting slider 27. The spray gun lifting guide rail 5 is vertically fixed on the paint spraying device trolley bracket 7, and a paint spraying device lifting slider 27 is arranged on the spray gun lifting guide rail 5. The paint spraying rod mounting base plate 26 is fixed on the paint spraying rod mounting base plate 26, and the paint spraying rod adjustment plate 25 is fixed on the paint spraying rod adjustment plate 25. The extended paint spraying pipe 28 is connected to the paint spraying rod adjustment plate 25. A paint nozzle 33 is provided at the lower end of the long paint spraying tube 28. The extended paint spraying tube 28 is connected to the airless sprayer 8. The spray gun lifting motor 6 is fixed on the horizontal walking base. The output end of the spray gun lifting motor 6 is synchronously connected to the paint spraying device lifting active shaft 24 through a chain. The paint spraying device lifting active shaft 24 is axially connected to the horizontal walking base through a bearing assembly. The paint spraying device lifting active shaft 24 is synchronously sleeved with the paint spraying device coupling 15. The paint spraying device coupling 15 is synchronously connected to the paint spraying device lifting driven shaft 30 through the paint spraying device lifting zipper 29. The paint spraying device lifting driven shaft 30 is axially connected to the top of the paint spraying device trolley bracket 7; the paint spraying device lifting zipper 29 is synchronously fixed on the paint spraying rod mounting base plate 26. When in use, the paint spraying device lifting mechanism drives the paint spraying device lifting zipper through the spray gun lifting motor to drive the paint spraying rod mounting base plate to perform lifting and lowering motion under the action of the spray gun lifting guide rail and the paint spraying device lifting slider, so as to complete the painting operation of different vertical spacings of the entire array tube bundle. The spray rod adjustment plate 25 is installed on the spray rod mounting base plate 26 to adjust the position of each spray rod through the left and right bolts. The extended spray pipe 28 is connected to the airless sprayer 8 located on the gantry pedal. The outlet of the airless sprayer 8 is composed of four switches and branches, two of which are for spraying paint in the forward direction and two for spraying paint in the reverse direction. Each branch is respectively connected to the extended spray pipe 28 on the spray paint mounting base plate 26. The end of the extended spray pipe 28 is connected to the paint nozzle to achieve consistency and balance of automatic spraying.

[0025] The array tube bundle workpiece 1 is placed under the top beam 2 of the gantry, and the operator reaches the operating platform of the painting device through the painting gantry ladder 9, and the operating platform guardrail 4 protects the operator's safety.

[0026] The equipment has a wide range of applications and can be used for automatic painting of array tube bundle modules such as boiler economizers, superheaters, and reheaters. The gantry moves back and forth to drive a total of eight spray guns on both sides to spray paint from top to bottom in sequence. Four spray rods can spray paint four tubes simultaneously in a single stroke. The thickness of the paint film can be controlled by adjusting the travel speed. The lateral distance between each spray gun can be adjusted by an adjustment plate, thereby achieving applicability to array tube bundles with different tube spacings and the same tube spacing. The device is simple to manufacture, has a high degree of automation, effectively reduces the amount of paint used, reduces the labor of workers, has a wide range of applications, and improves the efficiency of painting.

[0027] The painting device performs horizontal reciprocating motion through the gantry frame, and the spray gun performs up and down motion under the control of the lifting mechanism, thereby completing the painting action of four rows of vertical tubes, and repeating the above steps to complete the painting operation of the entire array tube bundle.

[0028] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An array tube bundle automatic painting device, characterized in that: It mainly includes an array tube bundle workpiece, a gantry walking mechanism, a lateral walking mechanism of a paint spraying device, and a lifting mechanism of a paint spraying device. The gantry walking mechanism mainly includes a gantry, a gantry top beam, a T-shaped guide rail, and a paint spraying gantry steel support. The gantry top beam is fixed to the upper end of the paint spraying gantry steel support. The gantry top beam is provided with a T-shaped guide rail, which is rollingly connected to the gantry. The gantry is provided with a movable lateral walking mechanism for a fixed paint spraying device. The lateral walking mechanism of the paint spraying device can move with the gantry on the T-shaped guide rail. The lateral walking mechanism of the paint spraying device is provided with a liftable fixed paint spraying device lifting mechanism, and an airless sprayer is fixed on the longitudinal walking mechanism of the gantry. The gantry walking motor is fixed on the gantry, and the gantry walking motor is synchronously connected to the gantry walking shaft. The gantry walking shaft is connected to the gantry, and both ends of the gantry walking shaft are synchronously connected to the gantry walking rollers, and the gantry walking rollers are rotatably arranged on the T shaped guide rail; an operating platform guardrail is arranged around the gantry, and a ladder extending to the bottom of the gantry walking mechanism is arranged on one side of the gantry; the lateral walking mechanism of the painting device mainly includes left and right direction walking motors of the painting device, a lateral walking coupling of the painting device, a bearing mounting assembly of the painting device, a lateral walking shaft of the painting device, a motor driving sprocket of the painting device, a lateral walking roller of the painting device, and a T-shaped guide rail of the walking mechanism, both ends of the T-shaped guide rail of the walking mechanism are fixed on the gantry, a movably fixed lateral walking base is on the T-shaped guide rail of the walking mechanism, the left and right direction walking motors of the painting device are fixed on the lateral walking base, the left and right direction walking motors of the painting device are synchronously connected to the lateral walking shaft of the painting device, the lateral walking shaft of the painting device is fixed on the lateral walking base, the two ends of the lateral walking shaft of the painting device are respectively connected to the lateral walking rollers of the painting device, and the lateral walking rollers of the painting device are rotatably arranged on the T-shaped guide rail of the walking mechanism.

2. The automatic spray painting device for array tube bundles according to claim 1 is characterized in that: The gantry is provided with a guide rail brake near the T-shaped guide rail.

3. The automatic spray painting device for array tube bundles according to claim 1 is characterized in that: The paint spraying device trolley bracket is fixed on the horizontal walking base of the horizontal walking mechanism of the paint spraying device; the paint spraying device lifting mechanism mainly includes a spray gun lifting guide rail, a paint spraying rod mounting base plate, a paint spraying rod adjustment plate, a paint spraying device lifting active shaft, an extended paint spraying pipe, a paint nozzle, a spray gun lifting motor, and a paint spraying device lifting slider. The spray gun lifting guide rail is vertically fixed on the paint spraying device trolley bracket, a paint spraying device lifting slider is arranged on the spray gun lifting guide rail, a paint spraying rod mounting base plate is fixed on the paint spraying rod mounting base plate, a paint spraying rod adjustment plate is fixed on the paint spraying rod mounting base plate, an extended paint spraying pipe is connected to the paint spraying rod adjustment plate, and the extended paint spraying pipe A paint nozzle is provided at the lower end, the extended paint spraying tube is connected to the airless sprayer, the spray gun lifting motor is fixed on the horizontal walking base, the output end of the spray gun lifting motor is synchronously connected to the paint spraying device lifting active shaft through a chain, the paint spraying device lifting active shaft is connected to the horizontal walking base through a bearing assembly, the paint spraying device lifting active shaft is synchronously sleeved on the paint spraying device lifting active shaft, the paint spraying device coupling is synchronously connected to the paint spraying device lifting driven shaft through a paint spraying device lifting zipper, the paint spraying device lifting driven shaft is connected to the top of the paint spraying device trolley bracket; the paint spraying device lifting zipper is synchronously fixed to the paint spraying rod mounting base.

4. The automatic painting device for array tube bundles according to claim 3 is characterized in that: The travel motor drives the gantry travel shaft to rotate through the sprocket and chain. The travel shaft is connected to the travel roller through a coupling, converting the rotational motion of the motor into the linear reciprocating motion of the roller.

5. The automatic painting device for array tube bundles according to claim 3 is characterized in that: The paint spraying device lifting mechanism drives the paint spraying device lifting zipper through the spray gun lifting motor, thereby driving the paint spraying rod mounting base plate to perform lifting movement under the action of the spray gun lifting guide rail and the paint spraying device lifting slider, so as to complete the painting operation of different vertical spacings of the entire array tube bundle.

6. The automatic spray painting device for array tube bundles according to claim 3 is characterized in that: The reciprocating movement of the gantry drives a total of eight spray guns on both sides to spray paint from top to bottom in sequence. Four spray rods can paint four tubes simultaneously in a single stroke. The thickness of the paint film is controlled by adjusting the travel speed each time. The lateral distance between each spray gun can be adjusted by the adjustment plate, thereby achieving applicability to different tube spacings and the same tube spacing of the array tube bundle.

7. The automatic spray painting device for array tube bundles according to claim 6 is characterized in that: The painting device performs horizontal reciprocating motion through the gantry frame, and the spray gun performs up and down motion under the control of the lifting mechanism, thereby completing the painting action of four rows of vertical tubes, and repeating the above steps to complete the painting operation of the entire array tube bundle.

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