Automatic spraying device and spraying method for preparing anti-freezing and anti-melting paint coating

Abstract

The invention relates to the field of spraying, in particular to an automatic spraying device and spraying method for preparing an anti-freezing and anti-melting paint coating, and the automatic spraying device comprises two sets of sliding plates which are arranged on a workbench in a sliding mode and are symmetrical about a pipe; the rack is arranged on the workbench in the moving direction of the pipe; the telescopic device a is arranged on the sliding plate through a mounting seat, the telescopic direction of the telescopic device a is longitudinal, a gear is rotationally arranged at the end of the telescopic device a, and the gear is meshed with the rack; the clamping mechanism is arranged on the end face, facing the pipe, of the gear and clamps the pipe from the two ends; and the spraying mechanism is arranged on the sliding plate and is used for spraying the pipe from the upper part. According to the device, a pipe is placed through the containing groove, the pipe is clamped through the guide cone and the clamping plate, and the device can adapt to spraying machining of the outer surfaces of pipes with different diameters; after the pipes are fed, automatic clamping, automatic spraying, automatic drying and automatic discharging are achieved, the whole process is completely automatic, and the spraying efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of spraying, and particularly to an automatic spraying device and a spraying method for preparing an anti-freezing and thawing coating. Background Art

[0002] The core functions of the anti-freezing and thawing coating are mainly reflected in extreme low temperature resistance, ice salt corrosion resistance and high adhesion. The application scenarios mainly include building structures, transportation facilities, water conservancy projects and industrial equipment. It is usually attached to the surface of the substrate by spraying, so as to play a protective role.

[0003] A Chinese patent with the publication number CN112642631B discloses a spraying device for the outer layer anti-corrosion coating of chemical pipelines, which can flexibly adjust the distance between the first support disk and the second support disk according to the length of the pipeline to be sprayed with the anti-corrosion coating, thereby increasing the length range of pipelines that the spraying device can spray, and can spray the coating on the pipeline evenly and effectively; through the cooperation of the telescopic corrugated cover and the drying device, it can not only effectively protect the pipeline, but also quickly and effectively heat the coating on the pipeline surface, accelerate the curing of the coating, and there is no need to transfer the pipeline to the drying room for the second time, avoiding the collision and scratching during the second transfer of the pipeline with the sprayed coating to the drying room, ensuring the integrity of the anti-corrosion coating layer on the outer surface of the pipeline, and improving the spraying processing efficiency of the pipeline anti-corrosion coating layer.

[0004] However, the above disclosed solution has the following deficiencies: The pipeline is positioned and sprayed by clamping at both ends, which requires multiple operations of clamping, loosening, loading and unloading, and the automation and continuity are poor, greatly reducing the spraying efficiency. Summary of the Invention

[0005] The object of the present invention is to address the problem of non-continuous operation in coating spraying in the background art, and propose an automatic spraying device and a spraying method for preparing an anti-freezing and thawing coating.

[0006] On the one hand, the present invention proposes an automatic spraying device for preparing an anti-freezing and thawing coating, including a workbench and a pipe. A feeding mechanism for placing the pipe is arranged on the workbench, and the moving direction of the pipe is set as horizontal; it also includes:

[0007] A slide plate, which is slidably arranged on the workbench. There are two groups of slide plates and they are symmetrical about the pipe; a moving mechanism for driving the two slide plates to move synchronously is arranged at the bottom of the workbench;

[0008] Rack bars, which are arranged on the workbench along the moving direction of the pipe, and there are two groups of rack bars;

[0009] A telescopic device a, which is arranged on the slide plate through a mounting seat. The telescopic direction of the telescopic device a is longitudinal, and a gear is rotatably arranged at the end of the telescopic device a, and the gear meshes with the rack bar;

[0010] A clamping mechanism, which is arranged on the end face of the gear facing the pipe, and clamps the pipe from both ends;

[0011] And a spraying mechanism, which is arranged on the sliding plate and sprays the pipe from above.

[0012] Preferably, the feeding mechanism includes a pipe conveying device arranged on the workbench and a pipe placing plate arranged on the pipe conveying device. The pipe placing plate is provided with a placing groove.

[0013] Preferably, the moving mechanism includes a connecting frame connected to the two sliding plates and a rodless cylinder arranged at the bottom of the workbench to drive the connecting frame to move.

[0014] Preferably, a support plate is arranged at the telescopic end of the telescopic device a. The gear is rotatably connected to the support plate. A plurality of guide rods and guide cylinders are respectively arranged on the opposite end faces of the support plate and the mounting seat. Part of the guide rod is inserted into the guide cylinder in a matching manner.

[0015] Preferably, the clamping mechanism includes a clamping plate arranged on the gear and a guide cone arranged on the end face of the clamping plate facing the pipe.

[0016] Preferably, the spraying mechanism includes a gantry arranged on the two sliding plates and a spraying assembly arranged on the gantry that can move longitudinally for spraying.

[0017] Preferably, a drying box is arranged in front of the discharging end of the workbench. A hot air conveying pipe is arranged on the drying box, and a plurality of hot air outlets are arranged on the top surface of the drying box.

[0018] Preferably, a plurality of guide plates are arranged at the discharging end of the workbench. A roller conveyor line is arranged at the position of the discharging end of the workbench. An inclined section is arranged on the guide plate to make the pipe roll onto the roller conveyor line.

[0019] On the other hand, the present invention proposes an automatic spraying method for an automatic spraying device for preparing an anti-freezing and thawing coating, including the following steps:

[0020] S1. Place the pipe on the feeding mechanism;

[0021] S2. Adjust the position by the lateral movement of the sliding plate, and then clamp the pipe from both sides by the clamping mechanism;

[0022] S3. The sliding plate starts to move laterally, and the pipe rotates through the meshing of the rack and the gear;

[0023] S4. Spray the outer wall of the sliding plate through the spraying mechanism, and then the spraying mechanism stops working and resets;

[0024] S5. The pipe continues to move to the blanking area to complete the automatic spraying process.

[0025] Compared with the prior art, the present invention has the following beneficial technical effects: by placing the pipe in the placement groove, and using the guiding cone and the clamping plate to clamp the pipe, it can adapt to the spraying process on the outer surface of pipes with different diameters; after the pipe is loaded, it is automatically clamped, automatically sprayed, automatically dried, and automatically unloaded, and the whole process is completely automated, with high spraying efficiency; through the rotation drying of the pipe, it ensures the full and comprehensive drying of the coating on the pipe surface and prevents damage to the coating during subsequent conveying. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of an embodiment of the present invention;

[0027] Figure 2 is Figure 1 The overall structural schematic diagram from the bottom perspective;

[0028] Figure 3 is Figure 1 The overall structural schematic diagram from the right side perspective;

[0029] Figure 4 is Figure 1 The partial structural schematic diagram of;

[0030] Figure 5 It is the structural schematic diagram of the spraying mechanism.

[0031] Reference numerals: 1, workbench; 2, pipe conveying device; 3, pipe placement plate; 4, pipe; 5, sliding plate; 6, slide rail; 7, connecting frame; 8, rodless cylinder; 9, avoidance groove; 10, rack; 11, mounting seat; 12, telescopic device a; 13, guiding cylinder; 14, guiding rod; 15, support plate; 16, gear; 17, guiding cone; 18, clamping plate; 19, gantry; 20, strip-shaped groove; 21, slider; 22, telescopic device b; 23, guiding plate; 24, spraying hard pipe; 25, hose; 26, nozzle; 27, baffle; 28, drying box; 29, hot air conveying pipe; 30, hot air outlet; 31, material guiding plate; 32, roller conveyor line. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] Embodiment 1, as Figures 1-4 shown, an automatic spraying device for preparing an anti-freezing and thawing coating proposed by the present invention includes a workbench 1 and a pipe 4. A feeding mechanism for placing the pipe 4 is arranged on the workbench 1, and the moving direction of the pipe 4 is set to be horizontal; it further includes:

[0033] The skateboard 5 is slidably arranged on the workbench 1. There are two groups of skateboards 5 and they are symmetric about the pipe 4. Specifically, two slide rails 6 are arranged on the workbench 1, and the skateboard 5 is provided with a chute that cooperates with the slide rail 6; a moving mechanism for driving the two skateboards 5 to move synchronously is arranged at the bottom of the workbench 1; the moving mechanism includes a connecting frame 7 connected to the two skateboards 5, and a rodless cylinder 8 arranged at the bottom of the workbench 1 to drive the connecting frame 7 to move; specifically, the main body of the connecting frame 7 is a U-shaped structure, connecting the two skateboards 5 from both sides below the workbench 1. An avoidance groove 9 is opened in the middle of the connecting frame 7, and the rodless cylinder 8 passes through the avoidance groove 9. The sliding plate of the rodless cylinder 8 is connected to the inner wall of the avoidance groove 9; the control system is connected to the rodless cylinder 8 for control;

[0034] The rack 10 is arranged on the workbench 1 along the moving direction of the pipe 4. There are two groups of racks 10, and the two groups of racks 10 are symmetric about the pipe 4;

[0035] The telescopic device a12 is arranged on the skateboard 5 through the mounting seat 11. The telescopic direction of the telescopic device a12 is longitudinal. A gear 16 is rotatably arranged at the end of the telescopic device a12. The gear 16 meshes with the rack 10; the telescopic device a12 and the gear 16 are also arranged in two groups; specifically, a support plate 15 is arranged at the telescopic end of the telescopic device a12. The gear 16 is rotatably connected to the support plate 15. A plurality of guide rods 14 and guide cylinders 13 are respectively arranged on the opposite end faces of the support plate 15 and the mounting seat 11. Part of the guide rod 14 is inserted into the guide cylinder 13 in a matching manner. Through the arrangement of the guide rod 14 and the guide cylinder 13, the overall stability is improved and the damage to the telescopic device a12 is reduced. In an alternative embodiment, the telescopic device a12 is a cylinder or a hydraulic cylinder;

[0036] The clamping mechanism is arranged on the end face of the gear 16 facing the pipe 4 and clamps the pipe 4 from both ends;

[0037] The spraying mechanism is arranged on the skateboard 5 and sprays the pipe 4 from above;

[0038] And a control system is connected to the moving mechanism, the telescopic device a12 and the spraying mechanism for control;

[0039] A drying box 28 is arranged in front of the discharge end of the workbench 1. A hot gas delivery pipe 29 is arranged on the drying box 28. A plurality of hot gas outlets 30 are arranged on the top surface of the drying box 28; the hot gas delivery pipe 29 is connected to an external hot gas delivery device. By supplying hot gas into the drying box 28 and then spraying it from the hot gas outlets 30 onto the rotating pipe 4, the paint coating on the outer wall of the pipe 4 is dried.

[0040] Embodiment 2, as Figure 1 shown, an automatic spraying device for preparing an anti-freezing and thawing paint coating proposed by the present invention. Compared with Embodiment 1, the structure of the feeding mechanism is introduced in detail in this embodiment.

[0041] The feeding mechanism includes a pipe conveying device 2 arranged on the workbench 1 and a pipe placing plate 3 arranged on the pipe conveying device 2. A placing groove is arranged on the pipe placing plate 3, and a pipe 4 is placed in the placing groove. The length of the pipe 4 is greater than the length of the placing groove, and the interface of the placing groove is arc-shaped, which can ensure that the pipe 4 is located at the middle position of the placing groove. The pipe conveying device 2 is used to convey the pipe placing plate 3 and the pipe 4 forward by one position into the loading position, then lift the pipe placing plate 3 and the pipe 4 upward to clamp and load. After the loading is completed, drive the pipe placing plate 3 to move downward to the lowest point, then the pipe conveying device 2 returns to the initial position again, and then put the pipe 4 into the placing groove through other mechanisms to carry out automatic continuous spraying work. The movement and lifting of the pipe placing plate 3 can be completed by arranging a lifting mechanism and a telescopic mechanism inside the pipe conveying device 2; the control system is connected to the pipe conveying device 2 for control.

[0042] Example 3, as Figures 3-5 shown, an automatic spraying device for preparing an anti-freezing and thawing coating proposed by the present invention. Compared with Example 1 or Example 2, the structures of the clamping mechanism and the spraying mechanism are introduced in detail in this example.

[0043] The clamping mechanism includes a clamping plate 18 arranged on the gear 16 and a guiding cone 17 arranged on the end face of the clamping plate 18 facing the pipe 4. When clamping the pipe 4, the telescopic device a12 extends to push the guiding cone 17 to first insert into the pipe 4, and then clamp the two ends of the pipe 4 through the clamping plate 18.

[0044] The spraying mechanism includes a gantry 19 arranged on two sliding plates 5 and a spraying component arranged on the gantry 19 that can move longitudinally for spraying. The control system is connected to the spraying component for control; a strip-shaped groove 20 is arranged on the gantry 19. The spraying component includes a slider 21 slidably arranged in the strip-shaped groove 20, a telescopic device b22 arranged in the strip-shaped groove 20 and driving the slider 21 to slide longitudinally, a nozzle 26 arranged at the bottom of the slider 21, a spraying hard pipe 24 arranged on the slider 21 and communicated with the nozzle 26, and a hose 25 connected to the spraying hard pipe 24. The hose 25 is connected to an external spraying device. The anti-freezing and thawing coating is sprayed onto the surface of the rotating pipe 4 through the hose 25, the spraying hard pipe 24 and the nozzle 26. The control system is connected to the telescopic device b22 and the nozzle 26 for control; in an optional embodiment, in order to improve the stability of the longitudinal movement of the spraying hard pipe 24, a guiding plate 23 for the spraying hard pipe 24 to pass through is arranged on the gantry 19. In addition, in order to prevent the anti-freezing and thawing coating from spraying onto the two gears 16 on both sides, two baffle plates 27 are arranged at the bottom of the gantry 19, and the nozzle 26 is located between the two baffle plates 27.

[0045] Example 4, as Figure 1As shown, an automatic spraying device for preparing an anti-freezing and thawing coating according to the present invention, compared with Embodiment 1, details the structure of automatic discharging in this embodiment.

[0046] A plurality of guide plates 31 are arranged at the discharging end of the workbench 1. A roller conveyor line 32 is provided at the position of the discharging end of the workbench 1. An inclined section is arranged on the guide plate 31 to make the pipe 4 roll onto the roller conveyor line 32. In an optional embodiment, two guide plates 31 are provided. The two guide plates 31 are located between two racks 10. After the pipe 4 is sprayed and dried, it moves above the guide plate 31. After the clamping of the pipe 4 is released, the pipe 4 falls onto the guide plate 31 and rolls onto the roller conveyor line 32 to complete automatic discharging.

[0047] Embodiment 5, an automatic spraying method proposed by the present invention, uses the automatic spraying device for preparing an anti-freezing and thawing coating in Embodiment 4, and specifically includes the following steps:

[0048] S1. Place the pipe 4 on the feeding mechanism;

[0049] S2. Adjust the position by horizontally moving the slide plate 5, and then clamp the pipe 4 from both sides through the clamping mechanism;

[0050] S3. The slide plate 5 starts to move horizontally. Through the meshing of the rack 10 and the gear 16, the pipe 4 rotates;

[0051] S4. Spray the outer wall of the slide plate 5 through the spraying mechanism, and then the spraying mechanism stops working and resets;

[0052] S5. The pipe 4 continues to move to the blanking area to complete the automatic spraying process.

[0053] In summary, when the present invention is in use, the pipe 4 is placed on the pipe placement plate 3. The pipe conveying device 2 drives the pipe placement plate 3 to move horizontally to the loading position, jacks up the pipe placement plate 3 and the pipe 4. The telescopic device a12 extends, and the pipe 4 is clamped by two clamping plates 18. Then the pipe placement plate 3 descends and moves to the initial position. The rodless cylinder 8 drives the connecting frame 7 and the slide plate 5 to move horizontally. Through the meshing of the gear 16 and the rack 10, the pipe 4 rotates. During the rotating movement of the pipe 4, the anti-freezing and thawing coating is sprayed onto the outer wall of the pipe 4 through the nozzle 26 above. Through the contraction of the telescopic device b22, the nozzle 26 moves longitudinally for spraying. After the coating processing is completed, the nozzle 26 is closed. The pipe 4 enters the drying area, and hot air is sprayed onto the rotating pipe 4 through the hot air outlet 30 to quickly dry the coating on its surface. Subsequently, the pipe 4 moves to the blanking position and rolls onto the roller conveyor line 32 through the guide plate 31 and is conveyed to the subsequent processing station to complete automatic blanking.

[0054] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

1. An automatic spraying device for preparing an antifreeze-thaw coating, comprising a workbench (1) and a pipe (4), wherein a discharge mechanism for placing the pipe (4) is provided on the workbench (1), and the moving direction of the pipe (4) is set to be horizontal; characterized in that: Also includes: A slide plate (5) is slidably arranged on the workbench (1), and two groups of slide plates (5) are arranged symmetrically with respect to the pipe (4); a moving mechanism for driving the two slide plates (5) to move synchronously is arranged at the bottom of the workbench (1); A rack (10) is arranged on the workbench (1) along the moving direction of the pipe (4), and two groups of racks (10) are arranged; The telescopic device a (12) is arranged on the slide plate (5) through the mounting seat (11), the telescopic direction of the telescopic device a (12) is longitudinal, and a gear (16) is rotatably arranged at the end of the telescopic device a (12), and the gear (16) is meshed with the rack (10); A clamping mechanism is arranged on the end surface of the gear (16) facing the pipe (4) and clamps the pipe (4) from both ends; and a spraying mechanism, which is arranged on the slide plate (5) and sprays the pipe (4) from above.

2. The automatic spraying device for preparing the antifreeze-thaw coating according to claim 1, characterized in that: The material discharge mechanism comprises a pipe conveying device (2) arranged on a workbench (1), and a pipe placing plate (3) arranged on the pipe conveying device (2), wherein a placing groove is arranged on the pipe placing plate (3).

3. The automatic spraying device for preparing the antifreeze-thaw coating according to claim 1, characterized in that: The moving mechanism comprises a connecting frame (7) connected to the two slide plates (5), and a rodless cylinder (8) arranged at the bottom of the workbench (1) to drive the connecting frame (7) to move.

4. The automatic spraying device for preparing the antifreeze-thaw coating according to claim 1, characterized in that: A support plate (15) is arranged at the telescopic end of the telescopic device a (12), a gear (16) is rotatably connected to the support plate (15), a plurality of guide rods (14) and a guide cylinder (13) are arranged on the end surfaces opposite to each other of the support plate (15) and the mounting seat (11), and a portion of the guide rod (14) is inserted into the guide cylinder (13).

5. The automatic spraying device for preparing the antifreeze-thaw coating according to claim 1, characterized in that: The clamping mechanism comprises a clamping plate (18) arranged on a gear (16), and a guide cone (17) arranged on the end surface of the clamping plate (18) facing the pipe (4).

6. The automatic spraying device for preparing the antifreeze-thaw coating according to claim 1, characterized in that: The spraying mechanism comprises a gantry (19) arranged on two slide plates (5), and a spraying component arranged on the gantry (19) and capable of longitudinally moving and spraying.

7. The automatic spraying device for preparing the antifreeze-thaw coating according to claim 1, characterized in that: A drying box (28) is arranged in front of the discharge end of the workbench (1), a hot air conveying pipe (29) is arranged on the drying box (28), and a plurality of hot air outlets (30) are arranged on the top surface of the drying box (28).

8. The automatic spraying device for preparing the antifreeze-thaw coating according to claim 1, characterized in that: A plurality of guide plates (31) are arranged at the discharge end of the workbench (1), a roller conveyor line (32) is arranged at the discharge end of the workbench (1), and an inclined section is arranged on the guide plates (31) to enable the pipe (4) to roll onto the roller conveyor line (32).

9. An automated spraying method, using the automated spraying device for preparing an antifreeze-thaw coating according to claim 1, characterized in that: The following steps are involved: S1, placing the pipe (4) on the unloading mechanism; S2, adjusting the position by moving the slide plate (5) laterally, and then clamping the pipe (4) from both sides by the clamping mechanism; S3, the slide plate (5) starts to move laterally, and the pipe (4) rotates through the meshing of the rack (10) and the gear (16); S4, spraying the outer wall of the slide plate (5) by the spraying mechanism, and then stopping the spraying mechanism and resetting; S5. The pipe (4) continues to move to the unloading area to complete the automated spraying process.

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