CN117123405A - Pipeline inner wall flush coater that can evenly spray - Google Patents
Pipeline inner wall flush coater that can evenly spray Download PDFInfo
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- CN117123405A CN117123405A CN202311376355.6A CN202311376355A CN117123405A CN 117123405 A CN117123405 A CN 117123405A CN 202311376355 A CN202311376355 A CN 202311376355A CN 117123405 A CN117123405 A CN 117123405A
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- 239000007921 spray Substances 0.000 title claims description 32
- 238000005507 spraying Methods 0.000 claims abstract description 124
- 239000003973 paint Substances 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims 2
- 238000007592 spray painting technique Methods 0.000 abstract description 13
- 238000004804 winding Methods 0.000 abstract description 9
- 238000004364 calculation method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
- B05B13/0645—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies the hollow bodies being rotated during treatment operation
- B05B13/0663—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies the hollow bodies being rotated during treatment operation and the hollow bodies being translated in a direction parallel to the rotational axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
- B05B13/0228—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts the movement of the objects being rotative
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Spray Control Apparatus (AREA)
Abstract
The invention is suitable for the technical field of pipeline spraying, and particularly relates to a pipeline inner wall spraying machine capable of uniformly spraying, which comprises: the rack is provided with a pipeline driving mechanism; one end of the frame is fixedly provided with a group of side plates, one side of each side plate is fixedly provided with a group of hydraulic devices, the other side of each side plate is fixedly provided with a group of hydraulic telescopic rods, the spraying mounting seat is provided with a distance sensor, a camera and a spraying nozzle, the side plates are provided with a group of winding wheels, the winding wheels are provided with coil springs, the winding wheels are wound with hoses, one ends of the hoses are connected with spray painting pressure devices, and the other ends of the hoses are connected with the spraying nozzle. According to the invention, through the distance sensor and the camera, the inner diameter and the outer diameter of the pipeline can be automatically identified, so that the planning of a spraying path is completed, the inner wall of the pipeline can be uniformly sprayed by the spraying nozzle under control, and the condition of nonuniform spraying caused by repeated spraying is avoided.
Description
Technical Field
The invention belongs to the technical field of pipeline spraying, and particularly relates to a pipeline inner wall spraying machine capable of uniformly spraying.
Background
The spraying machine is special coating equipment adopting spraying technology, and the principle is that the air flow is controlled to instantly push the air distribution reversing device to reverse, so that the piston of the pneumatic motor can make stable continuous reciprocating motion. The sucked paint is pressurized, the paint is conveyed into a spray gun of the spraying machine through a high-pressure hose, and the paint is instantly atomized by the spray gun and then released to the surface of a coated object. The spraying machine mainly comprises a feeding device, a spray gun and an atomization generation source, and is suitable for the industries of leather handbag, gift package, furniture, shoes industry, automobile manufacturing and the like.
In the current pipeline processing process, the pipeline needs to be protected through the mode of spraying, but the diameter of different pipelines is different, and the inner wall spraying of the pipeline is difficult to guarantee through current spraying equipment to be even.
Disclosure of Invention
The embodiment of the invention aims to provide a pipeline inner wall spraying machine capable of uniformly spraying, and aims to solve the problems that in the current pipeline processing process, pipelines are required to be protected in a spraying mode, but the diameters of different pipelines are different, and the inner wall of the pipeline is difficult to uniformly spray through the existing spraying equipment.
The embodiment of the invention is realized in such a way that the inner wall of the pipeline can be uniformly sprayed, and the inner wall of the pipeline can be uniformly sprayed, comprising:
the pipeline driving mechanism is used for driving the pipeline to rotate and move axially;
the automatic spray painting device is characterized in that one end of the frame is fixedly provided with a group of side plates, one side of each side plate is fixedly provided with a group of hydraulic device, the other side of each side plate is fixedly provided with a group of hydraulic telescopic rod, the hydraulic telescopic rods are connected with the hydraulic devices, the hydraulic devices are used for driving the hydraulic telescopic rods to stretch out and draw back, one end of each hydraulic telescopic rod, far away from each side plate, is connected with a spray painting installation seat through an electric control rotating disc, a distance sensor, a camera and a spray painting nozzle are installed on each spray painting installation seat, a group of winding wheels are installed on each side plate, a coil spring is arranged on each winding wheel, one end of each hose is connected with a spray painting pressure device, the other end of each hose is connected with the spray painting nozzle, and the distance sensor is used for detecting the distance between each hose and the inner wall of a pipeline.
Preferably, the pipeline driving mechanism comprises a feeding motor and a moving support, a guide rod is fixedly arranged on the frame, a slip ring is arranged on the moving support, the guide rod is sleeved in the slip ring, the feeding motor is fixedly arranged on the side plate, a threaded rod is connected to a rotating shaft of the feeding motor, a threaded sleeve is fixedly arranged at the bottom of the moving support, the threaded rod is connected with the threaded sleeve in a matched mode, a plurality of groups of supporting rollers are rotatably arranged on the moving support, a rotating motor is fixedly arranged on the moving support, and the rotating motor is used for driving the supporting rollers to rotate.
Preferably, the step of spraying by the uniformly sprayable pipeline inner wall sprayer comprises the following steps:
calculating the inner diameter size of the pipeline by the distance value detected by the distance sensor;
calculating the outer diameter size of the pipeline through the cooperation of the pipeline driving mechanism, the spraying nozzle and the camera;
and calculating a spraying period based on the inner diameter size and the outer diameter size of the pipeline, and driving the pipeline to be sprayed to rotate and move by the pipeline driving mechanism based on the spraying period, wherein in the spraying process, the spraying progress is judged through image data acquired by the camera.
Preferably, the step of calculating the inner diameter size of the pipe by the distance value detected by the distance sensor specifically includes:
distance measurement is carried out from three points to obtain a distance value and a rotation angle value;
constructing a two-dimensional coordinate system, and marking a line segment with the length equal to a distance value in the two-dimensional coordinate system by taking the rotation center of the spraying installation seat as an origin;
and constructing a fitting triangle by taking line segment endpoints except the origin as vertexes, drawing a circumscribed circle of the fitting triangle, and calculating the diameter of the circumscribed circle to obtain the inner diameter of the pipeline.
Preferably, the step of obtaining a distance value and a rotation angle value by performing distance measurement from three points specifically includes:
after the pipeline is placed, performing first detection through a distance sensor to obtain a first distance value; the spraying installation seat is controlled to rotate twice through the electric control rotating disc, the distance detection is carried out twice, a second distance value and a third distance value are obtained, and the angles of the two rotations are recorded, namely a first included angle and a second included angle.
Preferably, the step of calculating the outer diameter size of the pipe through the cooperation of the pipe driving mechanism, the spray nozzle and the camera specifically includes:
positioning and spraying are carried out through a spray nozzle, so that positioning spray paint is reserved on the inner wall of the pipeline;
the pipeline is driven to rotate clockwise or anticlockwise by the pipeline driving mechanism until positioning paint spraying appears in a picture acquired by the camera for the first time;
continuously controlling the rotation of the pipeline, and starting to calculate the rotation time until the positioning paint spraying appears in the picture acquired by the camera for the second time, and stopping timing at the moment to obtain the rotation period of the pipeline;
the circumference of the pipe is calculated based on the single spray cycle and the rotational angular velocity of the backup roll and the backup roll diameter in the pipe drive mechanism, and the outside diameter dimension of the pipe is further calculated.
Preferably, the support rollers are provided with four groups, and at least two groups of support rollers are connected with a rotating motor.
The pipeline inner wall spraying machine capable of uniformly spraying provided by the embodiment of the invention has the advantages that the structure is simple, the design is reasonable, no matter the pipeline with any size can be directly placed on the pipeline driving mechanism, the inner diameter and the outer diameter of the pipeline can be automatically identified through the arranged distance sensor and the camera, so that the planning of a spraying path is completed, the inner wall of the pipeline can be uniformly sprayed by the spraying nozzle under control, and the condition of uneven spraying caused by repeated spraying is avoided.
Drawings
FIG. 1 is a schematic three-dimensional view of a pipe inner wall coater capable of uniformly spraying according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a spraying mounting seat according to an embodiment of the present invention;
FIG. 3 is a flowchart showing the steps performed by the applicator for uniformly spraying the inner wall of a pipe according to the embodiment of the present invention;
FIG. 4 is a flowchart showing steps for calculating the inner diameter size of a pipeline by using the distance value detected by the distance sensor according to the embodiment of the present invention;
fig. 5 is a flowchart of the steps for calculating the outer diameter size of a pipe through the cooperation of a pipe driving mechanism, a spray nozzle and a camera according to an embodiment of the present invention.
In the accompanying drawings: 1. a frame; 2. a feed motor; 3. a movable support; 4. a guide rod; 5. a slip ring; 6. a threaded rod; 7. a side plate; 8. a winding wheel; 9. a hydraulic device; 10. a hydraulic telescopic rod; 11. spraying a mounting seat; 12. a rotating electric machine; 13. a support roller; 14. a thread sleeve; 15. a distance sensor; 16. a spray nozzle; 17. a camera is provided.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
As shown in fig. 1 and 2, a uniformly sprayable inner wall sprayer for a pipeline according to an embodiment of the present invention includes:
the pipeline driving mechanism is arranged on the frame 1 and used for driving the pipeline to rotate and move axially;
the automatic spray painting device is characterized in that one end of the frame 1 is fixedly provided with a group of side plates 7, one side of each side plate 7 is fixedly provided with a group of hydraulic devices 9, the other side of each side plate 7 is fixedly provided with a group of hydraulic telescopic rods 10, each hydraulic telescopic rod 10 is connected with each hydraulic device 9, each hydraulic device 9 is used for driving each hydraulic telescopic rod 10 to stretch out and draw back, one end of each hydraulic telescopic rod 10, far away from each side plate 7, is connected with a spray painting mounting seat 11 through an electric control rotating disc, each spray painting mounting seat 11 is provided with a distance sensor 15, a camera 17 and a spray painting nozzle 16, each side plate 7 is provided with a group of winding wheels 8, each winding wheel 8 is provided with a coil spring, each winding wheel 8 is wound with a hose, one end of each hose is connected with a spray painting pressure device, the other end of each hose is connected with the spray painting nozzle 16, each distance sensor 15 is used for detecting the distance between each hose and the inner wall of a pipeline, and each camera 17 is used for image acquisition.
As shown in fig. 1 and fig. 2, as a preferred embodiment of the present invention, the pipe driving mechanism includes a feeding motor 2 and a moving support 3, a guide rod 4 is fixedly disposed on the frame 1, a slip ring 5 is disposed on the moving support 3, the guide rod 4 is sleeved in the slip ring 5, the feeding motor 2 is fixedly mounted on a side plate 7, a threaded rod 6 is connected to a rotating shaft of the feeding motor 2, a threaded sleeve 14 is fixedly disposed at the bottom of the moving support 3, the threaded rod 6 is cooperatively connected with the threaded sleeve 14, a plurality of groups of support rollers 13 are rotatably disposed on the moving support 3, a rotating motor 12 is fixedly mounted on the moving support 3, and the rotating motor 12 is used for driving the support rollers 13 to rotate.
In this embodiment, no matter what size of pipeline is needed, the pipeline is directly placed on the pipeline driving mechanism when the inner wall is needed to be sprayed, specifically, the pipeline placed in the pipeline driving mechanism can be a reducing pipeline or an equal-diameter pipeline, and when the pipeline is placed, the pipeline is directly placed without considering the position relation between the pipeline axis and the hydraulic telescopic rod 10, the effect of automatically measuring the pipe diameter can be realized, the calculation of the spraying speed is automatically completed, the pipeline driving mechanism can drive the pipeline to rotate and move along the axis, the axial movement process is realized, the feeding motor 2 is started, the threaded rod 6 is driven to rotate by the feeding motor 2, the threaded rod 6 is matched with the threaded sleeve 14 to drive the moving bracket 3 to drive the pipeline to slide along the guide rod 4, so that the control of the axial movement of the pipeline is realized, when the pipeline is needed to be controlled to rotate, the support roller 13 is driven to rotate by the rotary motor 12, the support roller 13 contacts with the pipeline through the outer diameter to drive the pipeline to rotate along the circumferential direction, the pipeline is firstly placed on the pipeline driving mechanism during spraying, then the inner diameter size and the outer diameter size of the pipeline are calculated by the distance sensor 15, the camera 17 and the spraying nozzle 16, so that the time or the length required for controlling the pipeline to rotate for one circle is determined, the pipeline is controlled to feed, the feeding comprises rotary feeding and axial feeding, the distance sensor 15, the camera 17 and the spraying nozzle 16 are arranged in the same plane, the included angle between the distance sensor 15, the camera 17 and the spraying nozzle 16 is 120 DEG, the spraying nozzle 16 is positioned at the lowest position during spraying, the influence of sprayed vaporous paint on the camera 17 or the distance sensor 15 is avoided, during spraying, the method comprises the steps of calculating the rotation speed of a pipeline based on the distance between the spraying nozzle 16 and the inner wall of the pipeline and the spraying thickness, controlling the pipeline to rotate at the rotation speed through a pipeline driving mechanism, determining the time required by one circle of pipeline spraying (namely a single spraying period), controlling the spraying nozzle 16 to spray, suspending spraying after the duration of the single spraying period is reached, controlling the pipeline to move along the axial direction, determining the moving distance according to the distance between the spraying nozzle 16 and the inner wall of the pipeline and the spraying parameter of the spraying nozzle 16, wherein the larger the moving distance is, the smaller the moving distance is, and repeating the steps until the whole inner wall of the pipeline is sprayed after the moving is completed, wherein when the length of the pipeline is long, only the pipeline can not meet the spraying requirement, and the hydraulic telescopic rod 10 can be matched to further improve the spraying range.
As shown in fig. 3, a flowchart of a step of spraying by a uniformly sprayable inner wall sprayer of a pipeline according to an embodiment of the present invention is shown, where the step of spraying by the uniformly sprayable inner wall sprayer of the pipeline includes:
s100, calculating the inner diameter size of the pipeline by the distance value detected by the distance sensor 15.
In this step, the position between the distance sensor 15 and the axis of the pipe is uncertain, i.e. the position of the distance sensor 15 on the cross section of the pipe is random, and the distance between the distance sensor 15 and the inner wall of the pipe can be measured from at least three positions by rotating the distance sensor 15, and the inner diameter size of the pipe can be obtained by constructing a coordinate system in a manner of constructing a triangle circumcircle.
S200, calculating the outer diameter size of the pipeline through the cooperation of the pipeline driving mechanism, the spraying nozzle 16 and the camera 17.
In this step, the spray nozzle 16 is controlled to spray paint instantaneously onto the inner wall of the pipe, at this time, a paint spray mark is present on the inner wall of the pipe, the pipe is rotated so that the mark is collected by the camera 17, the rotation is continued until the mark is collected again, the time difference between the two collection times is recorded, the circumference of the pipe is calculated according to the circumference and the rotation speed of the support roller 13, and the outer diameter size is determined.
S300, calculating a spraying period based on the inner diameter size and the outer diameter size of the pipeline, and driving the pipeline to be sprayed to rotate and move by the pipeline driving mechanism based on the spraying period, wherein in the spraying process, the spraying progress is judged through image data collected by the camera 17.
In this step, the spraying period is calculated based on the inner diameter size and the outer diameter size of the pipe, the distance sensor 15 is moved to the position of the spraying nozzle 16, the distance between the spraying nozzle 16 and the inner wall of the pipe is detected, the coating sprayed by the spraying nozzle 16 is fan-shaped, so that the larger the distance is, the larger the spraying range is, the smaller the coating sprayed in unit time is, which means that the larger the distance between the spraying nozzle 16 and the inner wall of the pipe is or the larger the thickness required to be sprayed is, the smaller the rotation speed of the pipe is, the rotation angular velocity required by the pipe is calculated based on the distance value and the thickness value, at this time, the rotation linear velocity of the pipe can be calculated according to the outer diameter size of the pipe, so that the single spraying period can be calculated to continue spraying, and after the single spraying is completed, the spraying effect is checked by rotating the camera 17.
As shown in fig. 4, a flowchart of a step of calculating an inner diameter size of a pipe according to a distance value detected by the distance sensor 15 according to an embodiment of the present invention specifically includes:
s101, performing distance measurement from three points to obtain a distance value and a rotation angle value.
In this step, a first distance value is obtained by performing a distance detection from the current position of the distance sensor 15, then the distance sensor 15 is controlled to rotate clockwise by 120 ° for performing a distance detection once to obtain a second distance value, and then the distance detection is performed again by rotating clockwise by 120 ° to obtain a third distance value, so that the values of the first included angle and the second included angle are 120 °, the above angle values are only examples, the rotation angle can be set as required, and only the positions for performing the distance detection for three times are required to be different, but in order to ensure the detection accuracy, the included angle between the three groups of detection positions is required to be greater than 10 °, and thus better calculation accuracy can be obtained.
S102, constructing a two-dimensional coordinate system, and marking a line segment with the length equal to the distance value in the two-dimensional coordinate system by taking the rotation center of the spraying installation seat 11 as an origin.
In this step, a two-dimensional coordinate system is constructed, the rotation center of the spraying mounting seat 11 is taken as an origin, three groups of line segments are constructed based on a first distance value, a second distance value and a third distance value, the three groups of line segments are respectively a first line segment, a second line segment and a third line segment, one end point of each of the first line segment, the second line segment and the third line segment coincides with the origin, the first line segment is controlled to coincide with a positive half axis of a transverse axis of the two-dimensional coordinate system, and the positions of the second line segment and the third line segment are determined based on a first included angle and a second included angle.
S103, constructing a fitting triangle by taking line segment endpoints except the origin as vertexes, drawing a circumscribed circle of the fitting triangle, and calculating the diameter of the circumscribed circle to obtain the inner diameter of the pipeline.
In this step, the positions of the end points (excluding the end points coinciding with the origin) of the second line segment and the third line segment are determined based on the first included angle and the second included angle to construct a set of triangles, and an circumscribed circle corresponding to the triangles is drawn, where the inner diameter of the circumscribed circle is the inner diameter of the pipeline.
As shown in fig. 5, a flowchart of a step of calculating an outer diameter size of a pipe through cooperation of a pipe driving mechanism, a spray nozzle 16 and a camera 17 according to an embodiment of the present invention is shown, where the step of calculating the outer diameter size of the pipe through cooperation of the pipe driving mechanism, the spray nozzle 16 and the camera 17 specifically includes:
s201, positioning spraying is carried out through the spraying nozzle 16, so that positioning spraying paint remains on the inner wall of the pipeline.
In this step, positioning spraying is performed through the spraying nozzle 16, the pipeline is kept in a static state, at this time, the spraying nozzle 16 and the pipeline are in a relatively static position, at this time, the spraying nozzle 16 is controlled to spray a small amount of paint, so that paint is attached to the inner wall of the pipeline, and the pipeline is kept for a preset period of time, and the paint is kept slightly dry.
S202, driving the pipeline to rotate clockwise or anticlockwise through the pipeline driving mechanism until positioning paint spraying appears in a picture acquired by the camera for the first time.
S203, continuously controlling the rotation of the pipeline, and starting to calculate the rotation time until the positioning paint spraying appears in the picture acquired by the camera for the second time, and stopping timing at the moment to obtain the rotation period of the pipeline.
In this step, drive pipeline clockwise or anticlockwise rotation through pipeline actuating mechanism, when the location sprays paint appears in the picture that the camera gathered, carry out image acquisition, obtain first spray paint image, continue at the uniform velocity rotatory pipeline, until the location sprays paint appears once more, obtain the second spray paint image, when first spray paint image and the second spray paint image are complete to coincide, then the timing is stopped, obtain pipeline rotation period.
S204, calculating the circumference of the pipe based on the single spray cycle and the rotational angular velocity of the support roller 13 and the diameter of the support roller 13 in the pipe driving mechanism, and further calculating the outer diameter size of the pipe.
In this step, the size information and the rotation speed information of the support roller 13 are retrieved, so as to calculate the total length of the outer diameter rotation of the support roller 13 in this process, wherein the total length is the circumference of the pipe, if the radius of the support roller 13 is R, the rotation angular speed is W, and the pipe rotation period is T, the outer diameter size (pipe outer diameter) h= (w×t/360) ×2pi R/pi= (2 r×t)/360.
In this embodiment, when spraying, the spraying angular velocity is determined according to the spraying thickness, the spraying distance (the distance between the spraying nozzle 16 and the inner wall of the pipe) and the spraying parameters (the spraying area corresponding to different spraying distances, including the length and the width) of the spraying nozzle 16, the rotation linear velocity of the pipe is calculated based on the spraying angular velocity and the outer diameter size of the pipe, the time required for spraying is calculated based on the rotation linear velocity and the outer diameter size of the pipe, that is, a single spraying cycle is performed, after the single spraying is completed, the rotating camera 17 performs spraying surface inspection, and after the inspection is completed, the next cycle of spraying is performed.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (7)
1. The utility model provides a pipeline inner wall flush coater that can evenly spray, its characterized in that, pipeline inner wall flush coater that can evenly spray includes:
the pipeline driving device comprises a frame (1), wherein a pipeline driving mechanism is arranged on the frame (1) and is used for driving a pipeline to rotate and move axially;
one end of frame (1) is fixed and is provided with a set of curb plate (7), one side fixed mounting of curb plate (7) has a set of hydraulic means (9), the opposite side fixed mounting of curb plate (7) has a set of hydraulic telescoping rod (10), hydraulic telescoping rod (10) are connected with hydraulic means (9), hydraulic means (9) are used for driving hydraulic telescoping rod (10) and stretch out and draw back, the one end that curb plate (7) was kept away from to hydraulic telescoping rod (10) is connected with spraying mount pad (11) through automatically controlled rotary disk, install distance sensor (15), camera (17) and spraying mouth (16) on spraying mount pad (11), install a set of rolling wheel (8) on curb plate (7), be provided with the wind spring on rolling wheel (8), the one end of hose is connected with spray paint pressure device, and the other end and the spraying mouth (16) of hose are connected, distance sensor (15) are used for surveying the distance between self and the pipeline inner wall, camera (17) are used for carrying out image acquisition.
2. The pipeline inner wall flush coater that can evenly spray according to claim 1, wherein, pipeline actuating mechanism includes feed motor (2) and movable support (3), fixedly on frame (1) be provided with guide arm (4), be provided with sliding ring (5) on movable support (3), guide arm (4) cover are established in sliding ring (5), feed motor (2) fixed mounting is on curb plate (7), is connected with threaded rod (6) in the axis of rotation of feed motor (2), movable support (3) bottom is fixed to be provided with thread bush (14), threaded rod (6) are connected with thread bush (14) cooperation, the last rotation of movable support (3) is provided with multiunit backing roll (13), still fixedly installed rotary motor (12) on movable support (3), rotary motor (12) are used for driving backing roll (13) and rotate.
3. The uniformly sprayable interior wall coating applicator of claim 1 wherein the uniformly sprayable interior wall coating applicator comprises:
calculating the inner diameter size of the pipeline by the distance value detected by the distance sensor (15);
calculating the outer diameter size of the pipeline through the cooperation of the pipeline driving mechanism, the spraying nozzle (16) and the camera (17);
and calculating a spraying period based on the inner diameter size and the outer diameter size of the pipeline, and driving the pipeline to be sprayed to rotate and move by the pipeline driving mechanism based on the spraying period, wherein in the spraying process, the spraying progress is judged through image data acquired by a camera (17).
4. A uniformly sprayable inner wall of pipe applicator according to claim 3, characterized in that said step of calculating the inner diameter dimension of the pipe from the distance values detected by the distance sensor (15) comprises:
distance measurement is carried out from three points to obtain a distance value and a rotation angle value;
constructing a two-dimensional coordinate system, and marking a line segment with the length equal to a distance value in the two-dimensional coordinate system by taking the rotation center of the spraying installation seat (11) as an origin;
and constructing a fitting triangle by taking line segment endpoints except the origin as vertexes, drawing a circumscribed circle of the fitting triangle, and calculating the diameter of the circumscribed circle to obtain the inner diameter of the pipeline.
5. The uniformly sprayable pipeline inner wall sprayer according to claim 4, wherein the step of obtaining the distance value and the rotation angle value by measuring the distance from three points comprises the following steps:
after the pipeline is placed, performing first detection through a distance sensor (15) to obtain a first distance value; the spraying installation seat (11) is controlled to rotate twice through the electric control rotating disc, the distance detection is carried out twice, a second distance value and a third distance value are obtained, and the angles of the two rotations are recorded, namely a first included angle and a second included angle.
6. A uniformly sprayable inner wall coating machine for pipes according to claim 3, characterized in that said step of calculating the outer diameter of the pipe by means of the cooperation of the pipe driving mechanism, the spray nozzle (16) and the camera (17) comprises:
positioning spraying is carried out through a spraying nozzle (16) so that positioning spraying paint remains on the inner wall of the pipeline;
the pipeline is driven to rotate clockwise or anticlockwise by the pipeline driving mechanism until positioning paint spraying appears in a picture acquired by the camera for the first time;
continuously controlling the rotation of the pipeline, and starting to calculate the rotation time until the positioning paint spraying appears in the picture acquired by the camera for the second time, and stopping timing at the moment to obtain the rotation period of the pipeline;
the circumference of the pipe is calculated based on the single spray cycle and the rotational angular velocity of the support roller (13) and the diameter of the support roller (13) in the pipe driving mechanism, and the outside diameter dimension of the pipe is further calculated.
7. The uniformly sprayable pipeline inner wall sprayer according to claim 2, wherein the support rollers (13) are provided with four groups, and at least two groups of support rollers (13) are connected with a rotary motor (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311376355.6A CN117123405B (en) | 2023-10-24 | 2023-10-24 | Pipeline inner wall flush coater that can evenly spray |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311376355.6A CN117123405B (en) | 2023-10-24 | 2023-10-24 | Pipeline inner wall flush coater that can evenly spray |
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| Publication Number | Publication Date |
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| CN117123405A true CN117123405A (en) | 2023-11-28 |
| CN117123405B CN117123405B (en) | 2023-12-29 |
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| CN202311376355.6A Active CN117123405B (en) | 2023-10-24 | 2023-10-24 | Pipeline inner wall flush coater that can evenly spray |
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| CN (1) | CN117123405B (en) |
Citations (8)
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| US20120177809A1 (en) * | 2011-01-11 | 2012-07-12 | Solie John B | Duct coating system |
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| CN111841971A (en) * | 2020-08-04 | 2020-10-30 | 史代波 | Inner wall spraying device for pipeline machining |
| CN214717762U (en) * | 2021-05-07 | 2021-11-16 | 广东腐蚀科学与技术创新研究院 | Shield tunnel lining composite steel pipe inner wall anticorrosion coating device |
| CN116116602A (en) * | 2023-02-24 | 2023-05-16 | 中国水利水电第六工程局有限公司 | Anticorrosive steel pipe spraying device |
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2023
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE19840051A1 (en) * | 1998-09-02 | 2000-03-09 | Peter Kueppers | Application of plastic coating to inside of pipes involves projecting coating material to wall from mixer travelling along inside of pipe |
| US20120177809A1 (en) * | 2011-01-11 | 2012-07-12 | Solie John B | Duct coating system |
| CN102284398A (en) * | 2011-07-20 | 2011-12-21 | 南京理工大学 | Caliber self-adaption inwall spraying equipment aiming at large-caliber steel tube |
| CN108993805A (en) * | 2018-08-10 | 2018-12-14 | 安徽鼎恒再制造产业技术研究院有限公司 | A kind of spray equipment adapting to different-diameter round tube inner wall |
| CN209715516U (en) * | 2019-02-21 | 2019-12-03 | 盐城恒兴饲料有限公司 | One kind just repairing flush coater |
| CN111841971A (en) * | 2020-08-04 | 2020-10-30 | 史代波 | Inner wall spraying device for pipeline machining |
| CN214717762U (en) * | 2021-05-07 | 2021-11-16 | 广东腐蚀科学与技术创新研究院 | Shield tunnel lining composite steel pipe inner wall anticorrosion coating device |
| CN116116602A (en) * | 2023-02-24 | 2023-05-16 | 中国水利水电第六工程局有限公司 | Anticorrosive steel pipe spraying device |
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| CN117123405B (en) | 2023-12-29 |
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