CN213051319U

CN213051319U - Intraductal coating film device of long and thin pipe

Info

Publication number: CN213051319U
Application number: CN202020742697.0U
Authority: CN
Inventors: 刘荣; 张伟; 陈雪; 陈洋; 陈鑫康; 郑利敏
Original assignee: Guilin University of Electronic Technology
Current assignee: Guilin University of Electronic Technology
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2021-04-27
Anticipated expiration: 2030-05-08

Abstract

The utility model discloses an intraductal coating device of long and thin pipe, the intraductal coating device of long and thin pipe include flow control subassembly, film preparation subassembly, collection subassembly, photocuring subassembly and image observation subassembly. The photocuring viscous fluid is pumped from the injection pump into the drainage box, the fluid overflows from a liquid storage tank of the drainage box to a liquid outlet and enters the inner wall of the coating pipe, the fluid is influenced by gravity-driven flow to form a liquid film with periodic bulges, the morphological characteristics of the film are observed through the image observation assembly to judge whether the film coating requirement is met, the film coating requirement is fed back to the injection pump according to the recorded information, and the flow of the injection pump is further adjusted. And carrying out photocuring on the liquid film through the photocuring assembly to form a solid film with periodic bulges on the inner wall surface of the slender circular tube. The device is applied to greatly reduce the preparation cost, is simple to operate, and the prepared film with uniform structure has the advantages of controllable size, high precision and stable performance, and can be widely popularized in the film coating of long and thin round tubes.

Description

Intraductal coating film device of long and thin pipe

Technical Field

The utility model relates to a pipe coating device technical field especially relates to an intraductal coating device of long and thin pipe.

Background

The slender circular tube is a hollow circular tube structure with a large length-diameter ratio, and has wide application in energy systems and industrial manufacturing, such as urban water supply pipelines, solar water heater heat collecting tubes and the like. The microstructure (periodic protrusions) of the inner wall surface of the circular tube has great influence on the flow characteristic and the heat transfer characteristic in the tube, and has the advantages of reducing flow resistance, strengthening heat transfer and the like. Therefore, the coating of the thin film with the periodic bulge structure on the inner wall surface of the slender pipe has important scientific significance and application value.

The in-tube coating of a slender round tube is a technical problem which needs to be solved urgently in the industry, and at present, the commonly used round tube coating methods include vacuum evaporation coating, ion beam deposition coating, magnetron sputtering coating and the like. However, these methods are not suitable for coating the inner wall surface of a slender circular tube, and mainly because of the structural characteristics of the circular tube, the coating working principle, the size of the equipment, and the like, it is difficult for the equipment to be inserted into a circular tube with a large length-diameter ratio to realize uniform-structure coating, so that an efficient and reliable coating device is urgently needed to improve the coating effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an intraductal coating device of long and thin pipe, the equipment that aims at solving prior art existence in the intraductal coating film of big length-diameter ratio is difficult to insert the technological problem that long and thin pipe carries out the coating film.

In order to achieve the above object, in a first aspect, the present invention provides an in-tube coating device for a slender round tube, including a fixed backplate, a flow control assembly, a film preparation assembly, a collection assembly, a light curing assembly and an image observation assembly, where the flow control assembly includes an injection pump, an injector, a hose and a hose transfer port, the injection pump is fixedly connected with the fixed backplate and is located at one side of the fixed backplate, the injector is detachably connected with the injection pump, one end of the hose is communicated with the injector, the other end of the hose is communicated with the hose transfer port, and the other end of the hose transfer port is in threaded connection with the film preparation assembly;

the film preparation component comprises a fixed support, a drainage box, a drainage cover, a drainage sleeve, a sealing cover, a drainage port positioning clamp and a film coating pipe, the fixed support is fixedly connected with the fixed back plate, and is positioned at the same side of the fixed back plate with the injection pump, the drainage box is fixedly connected with the fixed bracket, the drainage cover is detachably connected with the drainage box, and is positioned above the drainage box, the drainage sleeve is in threaded connection with the drainage box and is positioned at one side far away from the drainage cover, the sealing cover is detachably connected with the drainage box, and is positioned at one side of the drainage sleeve far away from the drainage box, the drainage port positioning clamp is detachably connected with the sealing cover, the coating pipe is positioned in the drainage sleeve and communicated with the drainage box;

the collecting assembly comprises a liquid collector and a platform positioning piece, the liquid collector is positioned in the orthographic projection direction of the film coating pipes, the platform positioning piece is positioned on one side of the liquid collector, and the film coating pipes extend into the liquid collector;

the light curing component comprises an electric sliding rail part and a light curing lamp, the electric sliding rail part is fixedly connected with the fixed back plate and is parallel to the extending direction of the coating pipe, and the light curing lamp is connected with the electric sliding rail part in a sliding mode and faces one side of the coating pipe;

the image observation assembly comprises a camera tripod, a CCD camera and an image processor, the camera tripod is located the coating pipe is far away from one side of the platform positioning piece, the CCD camera is detachably connected with the camera tripod and faces one side of the coating pipe, and the image processor is electrically connected with the CCD camera.

The hose adapter comprises an interface body, a butt-joint piece and an adapter sealing ring, wherein the interface body is provided with a conical port and a threaded port, the conical port is fixedly connected with the interface body and is inserted into the hose to be communicated with the hose, the threaded port is fixedly connected with the interface body and is in threaded connection with the drainage box, the butt-joint piece is fixedly connected with the interface body and is sleeved on the interface body, an adapter groove is formed in the butt-joint piece, and the adapter sealing ring is located in the adapter groove and abuts against the drainage box and the hose adapter.

The drainage box is provided with a liquid outlet, a liquid storage tank and a liquid inlet, the liquid outlet longitudinally penetrates through the drainage box and is communicated with the drainage sleeve, the liquid storage tank is located around the liquid outlet, a liquid storage boss is formed between the liquid outlet and the liquid storage tank, the liquid storage boss faces towards the upper surface of the drainage cover and is provided with a gap, one end of the liquid inlet is communicated with the liquid storage tank, and the other end of the liquid inlet is communicated with the hose transfer port.

The film preparation assembly further comprises a first sealing ring, wherein the first sealing ring is located in the first groove and abuts against the drainage cover and the drainage box.

The drainage sleeve is provided with a first through hole and a second through hole, the liquid outlet, the first through hole and the second through hole are sequentially communicated, the second through hole is located on one side close to the sealing cover, the diameter of the first through hole is equal to the inner diameter of the coating pipe, the diameter of the second through hole is larger than that of the first through hole, and the diameter of the second through hole is equal to the outer diameter of the coating pipe.

The sealing cover is provided with a base plate groove, a second groove and a pipe wall groove, the base plate groove is located on one side, facing the drainage sleeve, of the sealing cover, the second groove is located on the periphery of the base plate groove, and the pipe wall groove is located on one side, facing the drainage opening positioning clamp, of the sealing cover.

The film preparation assembly further comprises a base plate, a second sealing ring and a pipe wall sealing ring, the base plate is fixedly connected with the drainage sleeve and is located in a groove of the base plate, the second sealing ring is located in the second groove and abuts against the sealing cover and the drainage box, and the pipe wall sealing ring is located in the pipe wall groove and abuts against the sealing cover and the coated pipe.

The platform positioning piece comprises a supporting platform, a telescopic frame, a displacement platform and a fixing clamp, wherein the supporting platform is located below the liquid collector, the telescopic frame is connected with the supporting platform in a rotating mode and located below the supporting platform, the displacement platform is fixedly connected with the supporting platform and located on one side, away from the image observation assembly, of the liquid collector, and the fixing clamp is fixedly connected with the displacement platform and clamps the film-coated pipe.

The electric slide rail piece comprises a fixing piece, a screw rod, a driving piece and a sliding piece, the fixing piece is fixedly connected with the fixing clamp and arranged in the same direction as the coating pipe, the screw rod is rotatably connected with the fixing piece, an output shaft of the driving piece is matched with the screw rod, and the sliding piece is slidably connected with the screw rod and fixedly connected with the light curing lamp.

In a second aspect, the present invention provides a method for coating a thin and long circular tube inside a tube, comprising:

outputting a coating signal to the injection pump, driving the injection pump to pump out photocuring viscous fluid at a first preset speed, and enabling the fluid to enter the liquid storage tank through the hose, overflow to the liquid outlet and enter the inner wall of the coating pipe;

outputting an observation signal to the CCD camera, controlling the CCD camera to photograph the film coating pipe according to preset time and a preset frame rate to obtain an observation picture of the fluid morphology, and transmitting the observation picture to the image processor for processing;

receiving and processing the observation picture to obtain the descending speed of the photocuring viscous fluid and a morphological characteristic diagram of the fluid film;

judging whether the morphological characteristics of the fluid film meet the coating requirements or not;

if so, outputting a moving signal to the driving piece to drive the screw rod to rotate, controlling the sliding piece to slide along the extension direction of the screw rod, outputting a curing signal to the light curing lamp, and controlling the light curing lamp to cure the fluid in the coating pipe;

if not, outputting an adjusting signal to the injection pump to pump out light to solidify viscous fluid according to a second preset speed, wherein the fluid enters the liquid storage tank through the hose and overflows to the liquid outlet and enters the inner wall of the coating pipe until the morphological characteristics of the fluid film meet the coating requirements.

The utility model discloses an intraductal coating device of long and thin pipe, through following stable pump photocuring viscous fluid arrives in the syringe pump in the drainage case, the fluid warp the drainage case the reservoir spills over extremely the liquid outlet gets into coating film pipe inner wall receives the influence of gravity drive flow to form and has periodic bellied liquid film, rethread the image is surveyed the subassembly and is surveyed film morphological characteristic and judge whether reach the coating film requirement, if not reach the requirement, feeds back to the syringe pump according to the information of record, and then the regulated flow. And finally, carrying out rapid photocuring on the liquid film through the photocuring assembly to form a solid film with periodic bulges on the inner wall surface of the slender circular tube. The device is applied to greatly reduce the preparation cost, is simple to operate, and the prepared film with uniform structure has the advantages of controllable size, high precision and stable performance, and can be widely popularized in the film coating of long and thin circular tubes.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of an in-tube coating device for a slender round tube according to the present invention;

FIG. 2 is a schematic structural view of the light-curing assembly of the present invention;

FIG. 3 is a schematic view of the explosion structure of the drainage box, the drainage cover, the drainage sleeve, the sealing cover and the drainage port positioning clip of the present invention;

FIG. 4 is a schematic structural view of the drainage box of the present invention;

fig. 5 is a schematic structural view of the displacement platform and the fixing clip of the present invention;

fig. 6 is a schematic structural view of the hose adapter of the present invention;

FIG. 7 is a schematic structural view of the clip for positioning drainage port of the present invention;

FIG. 8 is a fluid film morphology feature diagram of a coating tube of the present invention;

fig. 9 is a schematic flow chart of an in-tube coating method for a slender round tube according to an embodiment of the present invention;

in the figure: 100-an in-tube coating device of a slender round tube, 1-a fixed back plate, 2-a flow control assembly, 3-a film preparation assembly, 4-a collection assembly, 5-a light curing assembly, 6-an image observation assembly, 21-an injection pump, 22-an injector, 23-a hose, 24-a hose adapter port, 31-a fixed support, 32-a drainage box, 33-a drainage cover, 34-a drainage sleeve, 35-a sealing cover, 36-a drainage port positioning clamp, 37-a first sealing ring, 38-a chassis, 39-a second sealing ring, 41-a liquid collector, 42-a platform positioning piece, 51-an electric slide rail piece, 52-a light curing lamp, 61-a camera tripod, 62-a CCD camera, 241-an interface body, 242-a supporting piece, a light curing lamp, a 61-a camera tripod, a 62-a CCD, 321-a liquid outlet, 322-a liquid storage tank, 323-a liquid inlet, 324-a liquid storage boss, 325-a first groove, 341-a first through hole, 342-a second through hole, 351-a chassis groove, 352-a second groove, 353-a pipe wall groove, 421-a supporting platform, 422-an expansion bracket, 423-a displacement platform, 424-a fixing clamp, 511-a fixing piece, 512-a screw rod, 513-a driving piece, 514-a sliding piece, 2411-a tapered port, 2412-a threaded port, 2421-an adapter groove and 200-a film coating pipe.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 8, the present invention provides an in-tube coating device 100 for a slender round tube, which includes a fixing back plate 1, a flow control assembly 2, a film preparation assembly 3, a collection assembly 4, a light curing assembly 5 and an image observation assembly 6. The flow control assembly 2 comprises an injection pump 21, an injector 22, a hose 23 and a hose adapter 24, the injection pump 21 is fixedly connected with the fixed back plate 1 and is positioned at one side of the fixed back plate 1, and the injector 22 is detachably connected with the injection pump 21; one end of the hose 23 is communicated with the injector 22, the other end of the hose is communicated with the hose adapter 24, and the other end of the hose adapter 24 is in threaded connection with the film preparation assembly 3;

film preparation subassembly 3 includes fixed bolster 31, drainage case 32, drainage lid 33, drainage sleeve 34, sealed lid 35, drainage mouth positioning clamp 36 and coating tube 200, fixed bolster 31 with fixed backplate 1 fixed connection, and with injection pump 21 is located same one side of fixed backplate 1, drainage case 32 with fixed bolster 31 fixed connection, through fixed bolster 31's through-hole location, drainage case 32 has liquid outlet 321, reservoir 322 and inlet 323, liquid outlet 321 vertically runs through drainage case 32, reservoir 322 is located around liquid outlet 321, liquid outlet 321 with form stock solution boss 324 between the reservoir 322, inlet 323 with reservoir 322 intercommunication, drainage lid 33 with drainage case 32 can dismantle the connection, and is located drainage case 32's top, just drainage lid 33 orientation the lower surface of stock solution boss 324 with stock solution boss 324 orientation drainage boss 324 orientation A gap is formed in the upper surface of the flow cover 33, one end of the hose 23 is fixedly connected with the injector 22, the other end of the hose 23 is communicated with the hose adapter port 24, the drainage sleeve 34 is in threaded connection with the drainage box 32 and is positioned on one side far away from the drainage cover 33 and is communicated with the liquid outlet 321, the sealing cover 35 is detachably connected with the drainage box 32 and is positioned on one side far away from the drainage box 32 of the drainage sleeve 34, the drainage port positioning clamp 36 is detachably connected with the sealing cover 35 and is positioned on one side far away from the drainage sleeve 34 of the sealing cover 35, and the film coating pipe 200 is positioned in the drainage sleeve 34 and is communicated with the drainage box 32;

the collecting assembly 4 comprises a liquid collector 41 and a platform positioning member 42, the liquid collector 41 is positioned in the orthographic projection direction of the film coating pipe 200, the platform positioning member 42 is positioned at one side of the liquid collector 41, the film coating pipe 200 is positioned in the drainage sleeve 34, is communicated with the liquid outlet hole 321 and extends into the liquid collector 41;

the light curing component 5 comprises an electric slide rail part 51 and a light curing lamp 52, the electric slide rail part 51 is fixedly connected with the fixed back plate 1 and is parallel to the extending direction of the film coating pipe 200, and the light curing lamp 52 is slidably connected with the electric slide rail part 51 and faces one side of the film coating pipe 200.

Specifically, the coating device 100 for coating inside the tube of the slender round tube further comprises a controller, wherein the controller is a master device for controlling the starting, speed regulation, braking and reversing of the motor by changing the wiring of the main circuit or the control circuit and changing the resistance value in the circuit according to a preset sequence. The system consists of a program counter, an instruction register, an instruction decoder, a time sequence generator and an operation controller, and is a decision mechanism for issuing commands, and the model of the decision mechanism can be HRVG-08E. The injection pump 21 is electrically connected with the controller, the fixed backboard 1 is used for supporting the flow control assembly 2 and the film preparation assembly 3, the flow control assembly 2, the film preparation assembly 3, the collection assembly 4, the light curing assembly 5 and the image observation assembly 6 are all located on the same side of the fixed backboard 1, and the fixed support 31 is fixed on the fixed backboard 1 through corner piece bolt connection. The injection pump 21 is composed of a stepping motor and a driver thereof, a screw rod, a bracket and the like, and is provided with a reciprocating screw rod and a reciprocating nut, when the injection pump works, a singlechip system of the controller sends out control pulses to enable the stepping motor to rotate, the stepping motor drives the screw rod to change the rotation motion into linear motion to push a piston of the injector 22 to inject and infuse, the hose 23 is connected with an output port of the injector 22 and a hose adapter port 24, the hose adapter port 24 is in threaded connection with the liquid inlet 323 of the drainage box 32 to enable a coating fluid to enter the liquid storage tank 322 of the drainage box 32, the drainage cover 33 is in threaded connection with the drainage box 32 to detachably clean the inside of the drainage box 32 and ensure the coating effect, and the drainage cover 33 faces towards the liquid storage boss 324, the lower surface of the liquid storage boss 324 and the liquid storage boss 324 face towards the drainage cover 32 The upper surface of the flow cover 33 is provided with a gap, the gap is a 2.5mm slit, when the photo-curing viscous fluid flowing into the liquid storage tank 322 is fully stored, the photo-curing viscous fluid can slowly overflow from the gap and enter the liquid outlet 321, the drainage sleeve 34 is fixed below the drainage box 32 and is used for draining the photo-curing viscous fluid, the sealing cover 35 is fixed below the drainage sleeve 34 and is used for preventing the photo-curing viscous fluid from leaking, the coating tube 200 is a transparent tube, one end of the coating tube is positioned in the drainage sleeve 34, the inner wall of the coating tube is communicated with the liquid outlet 321, the other end of the coating tube is positioned in the liquid collector 41 and is communicated with the liquid collector 41, the liquid outlet 321, the coating tube 200 and the liquid collector 41 are positioned on the longitudinal axis, so that the photo-curing viscous fluid flows from the liquid outlet 321 to the inner wall of the coating tube 200 to be uniformly coated due to gravity driving, and the liquid collector, convenient for next use, saves cost and prevents environmental pollution. The platform positioning member 42 is used for supporting the liquid collector 41 and fixing the film coating pipe 200 for film coating operation. The electric slide rail part 51 is used for supporting and driving the light-cured lamp 52 to move to perform curing treatment on the coated film pipe 200 after coating, the extending direction of the electric slide rail part 51 is parallel to the extending direction of the coated film pipe 200, so that uniform and rapid curing treatment is facilitated, the coating effect is enhanced, the light-cured lamp 52 adopts a halogen lamp, can emit strong blue visible waves, has the wavelength of about 300-500nm, and coats the inner wall surface with a film by utilizing the characteristic of strong light transmission of the coated film pipe 200.

The drainage sleeve 34 has a first through hole 341 and a second through hole 342, the liquid outlet 321, the first through hole 341 and the second through hole 342 are sequentially communicated, the second through hole 342 is located at a side close to the sealing cover 35, the diameter of the first through hole 341 is equal to the inner diameter of the film coating pipe 200, and the diameter of the second through hole 342 is equal to the outer diameter of the film coating pipe 200. The diameter of the first through hole 341 is equal to the inner diameter of the coating tube 200, the diameter of the second through hole 342 is larger than the diameter of the first through hole 341, and the outer diameter of the coating tube 200 is equal to the diameter of the second through hole 342, that is, the tube body of the coating tube 200 is positioned in the second through hole 342, the tube wall and the inner wall of the first through hole 341 are positioned on the same straight line, the photo-curing viscous fluid directly flows into the inner wall of the coating tube 200 along with the inner wall of the first through hole 341 of the drainage box 32, the viscous fluid has good coating effect and is prevented from being misplaced, the photo-curing viscous fluid can directly fall into the liquid collector 41 from the center of the tube body of the coating tube 200, and in addition, the photo-curing viscous fluid is unevenly distributed in the liquid outlet 321, which can also result in uneven coating.

The hose adapter 24 includes an interface body 241, a support member 242 and an adapter sealing ring, the interface body 241 has a tapered port 2411 and a threaded port 2412, the tapered port 2411 is fixedly connected with the interface body 241 and is inserted into the hose 23 to communicate with the hose 23, the threaded port 2412 is fixedly connected with the interface body 241 and is in threaded connection with the drainage box 32, the support member 242 is fixedly connected with the interface body 241 and is sleeved on the interface body 241, the support member 242 is provided with a sealing ring groove 2421, and the adapter sealing ring is located in the sealing ring groove 2421 and supports the drainage box 32 and the hose adapter 24. The hose adapter 24 is used for connecting the hose 23 and the drainage box 32, the tapered port 2411 is fixedly connected with the interface body 241, and is inserted into the hose 23 to be in threaded communication with the hose 23, so that the device replacement, such as the replacement of the injection pump 21, is facilitated, and the leakage of the photo-curing viscous fluid is prevented.

The drainage port positioning clip 36 is in threaded connection with the sealing cover 35 and is positioned on one side of the sealing cover 35 away from the drainage sleeve 34. Drainage mouth locating clip 36 includes first ring body and two first archs, two first protruding integrated into one piece in the both sides of first ring body, two first archs all have the screw hole, when will carry out the coating film and handle, will drainage mouth locating clip 36's first ring body cover is located outside coating film pipe 200, will the ring body passes through the bolt fastening in sealed lid 35's below, penetrates two with the bolt the screw hole is screwed fixedly coating film pipe 200 carries out the coating film operation, and convenient the change guarantees again coating film pipe 200 with the axiality of liquid outlet 321.

The drainage box 32 further has a first groove 325, the first groove 325 is located around the reservoir 322, the film preparation assembly 3 further includes a first sealing ring 37, and the first sealing ring 37 is located in the first groove 325 and abuts against the drainage cover 33 and the drainage box 32. The drainage cover 33 and the drainage box 32 are sealed by the first sealing ring 37 disposed in the first groove 325, preventing the photo-curing viscous fluid from leaking.

The sealing cover 35 has a bottom groove 351, a second groove 352 and a pipe wall groove 353, the bottom groove 351 is positioned on one side of the sealing cover 35 facing the drainage sleeve 34, the second groove 352 is positioned around the bottom groove 351, and the pipe wall groove 353 is positioned on one side of the sealing cover 35 facing the drainage port positioning clip 36; the membrane preparation assembly 3 further comprises a bottom plate 38, a second sealing ring 39 and a tube wall sealing ring, wherein the bottom plate 38 is fixedly connected with the drainage sleeve 34 and is located in the bottom plate groove 351, the second sealing ring 39 is located in the second groove 352, and the tube wall sealing ring is located in the tube wall groove 353. The bottom plate 38 fixedly connected with the drainage sleeve 34 is embedded into the bottom plate groove 351, so that the connection performance of the drainage sleeve 34 and the sealing cover 35 is improved, and the second sealing ring 39 is positioned in the second groove 352 of the sealing cover 35, so that the sealing performance of the drainage sleeve 34 and the sealing cover 35 is enhanced, and the light-cured viscous fluid is prevented from leaking and polluting instruments and the environment. Meanwhile, the pipe wall sealing ring is positioned in the pipe wall groove 353, so that the sealing performance of the sealing cover 35 and the coating pipe 200 is enhanced, and the light-cured viscous fluid is prevented from leaking to pollute instruments and the environment.

Platform setting element 42 includes supporting platform 421, expansion bracket 422, displacement platform 423 and fixation clamp 424, supporting platform 421 is located the below of liquid trap 41, expansion bracket 422 with supporting platform 421 rotates to be connected, and is located the below of supporting platform 421, displacement platform 423 with supporting platform 421 fixed connection, and be located liquid trap 41 is kept away from one side of image observation subassembly 6, fixation clamp 424 with displacement platform 423 fixed connection, centre gripping coating pipe 200. Supporting platform 421 is used for supporting displacement platform 423, fixation clamp 424 and liquid trap 41, expansion bracket 422 is used for driving supporting platform 421 is flexible from top to bottom, makes coating film pipe 200 support hold in drainage sleeve 34, and can be used to the long and thin pipe of different length to carry out intraductal coating film operation, expansion bracket 422 includes a plurality of first poles, a plurality of second pole, a plurality of bracing piece and dead lever, and two adjacent first poles rotate to be connected, and two adjacent second poles rotate to be connected, and adjacent first pole and the criss-cross rotation of second pole are connected, and the bracing piece rotates with two first poles that set up relatively to be connected, and mounting 511 supports and holds the bracing piece restriction the ascending distance that descends of expansion bracket 422. The fixing clamp 424 comprises a second ring body and two second protrusions, the two second protrusions are provided with threaded holes, the two second protrusions are fixedly connected to the two sides of the second ring body, the second ring body is sleeved on the coating pipe 200, the coating pipe 200 penetrates through the two threaded holes through bolts and is screwed down and fixed, and the coating pipe 200 is guaranteed to be placed vertically.

The electric slide rail member 51 comprises a fixing member 511, a screw rod 512, a driving member 513 and a sliding member 514, wherein the fixing member 511 is fixedly connected with the fixed back plate 1 and arranged in the same direction as the film coating pipe 200, the screw rod 512 is rotatably connected with the fixing member 511, an output shaft of the driving member 513 is matched with the screw rod 512, and the sliding member 514 is slidably connected with the screw rod 512 and fixedly connected with the light curing lamp 52. The fixing part 511 is used for supporting the screw rod 512 rotates, the driving part 513 is a motor, and refers to an electromagnetic device for realizing electric energy conversion or transmission according to the law of electromagnetic induction, the main function of the electromagnetic device is to generate driving torque to drive the screw rod 512 to rotate, the motor, the screw rod 512 and the sliding part 514 form a screw rod structure, the motor is electrically connected with the controller, the controller drives the motor to drive the screw rod 512 to rotate, then the sliding part 514 is driven to slide along the extending direction of the screw rod 512, the light curing lamp 52 is fixedly connected with the sliding part 514, and then the light curing lamp 52 is driven to carry out rapid curing treatment on the coating tube 200.

The image observation assembly 6 comprises a camera tripod 61, a CCD camera 62 and an image processor, the camera tripod 61 is positioned on one side of the film coating pipe 200 far away from the platform positioning part 42, the CCD camera 62 is fixedly connected with the camera tripod 61 and faces one side of the film coating pipe 200, and the image processor is electrically connected with the CCD camera 62. The camera tripod 61 is used for supporting the CCD camera 62, the image processor is electrically connected with the controller, the lens of the CCD camera 62 is vertically aligned to the coating pipe 200 at a distance of about 40cm from the drainage sleeve 34, the fluid film on the inner wall of the coating pipe 200 is observed, the image processor receives the observed picture shot by the CCD camera 62 for processing, judges whether the morphological characteristics of the coating effect film on the inner wall of the coating pipe 200 meet the coating requirements or not, and forms feedback information for fine adjustment operation. Specifically, the controller outputs a coating signal to the injection pump 21, controls the injection pump 21 to stably pump out the photo-curing viscous fluid into the liquid storage tank 322 in the drainage box 32, and when the photo-curing viscous fluid fills the whole liquid storage tank 322, the photo-curing viscous fluid overflows to the liquid outlet 321 and enters the inner wall of the coating pipe for coating; the controller outputs an observation signal to the CCD camera 62, controls the CCD camera 62 to shoot the film coating pipe 200, obtains an observation picture, transmits the observation picture to the image processor for processing to obtain the descending speed of the viscous fluid and the morphological characteristics of the fluid film, judges whether the morphological characteristics of the fluid film meet the film coating requirement, and finally obtains a qualified processing result and an unqualified processing result; the controller receives qualified processing result information of the image processor, outputs a moving signal to the driving part 513, controls the screw 512 to rotate to drive the light-curing lamp 52 to move along the extension direction of the screw 512, and outputs a curing signal to the light-curing lamp 52 to cure the coating pipe 200; the controller receives the unqualified processing result information of the image processor, and outputs an adjusting signal to the injection pump 21 to adjust the flow speed and the flow of the photocuring viscous fluid until the morphological characteristics of the fluid film meet the coating requirements.

In a second aspect, please refer to fig. 9, fig. 9 is a schematic flow chart of a method for coating a thin and long circular tube in a tube according to an embodiment of the present invention, and the method for coating a thin and long circular tube in a tube may include the following steps:

s101, outputting a coating signal to the injection pump 21, driving the injection pump 21 to pump out a photo-curing viscous fluid at a first preset speed, and enabling the fluid to enter the liquid storage tank 322 through the hose 23, overflow to the liquid outlet 321 and enter the inner wall of the coating pipe;

s102, outputting an observation signal to the CCD camera 62, controlling the CCD camera 62 to photograph the film coating pipe according to preset time and a preset frame rate to obtain an observation picture of the fluid appearance, and transmitting the observation picture to the image processor for processing;

s103, receiving and processing the observation picture to obtain the descending speed of the viscous fluid and a morphological characteristic diagram of the fluid film;

s104, judging whether the morphological characteristics (periodic convex structures) of the fluid film meet the coating requirements or not;

if yes, outputting a moving signal to the driving part 513 to drive the screw 512 to rotate, controlling the sliding part 514 to slide along the extending direction of the screw 512, outputting a curing signal to the light curing lamp 52, and controlling the light curing lamp 52 to cure the coated tube;

if not, an adjusting signal is output to the injection pump 21 to pump out light to cure the viscous fluid according to a second preset speed, and the fluid enters the reservoir 322 through the hose and overflows to the liquid outlet 321 to enter the inner wall of the coating tube until the morphological characteristics of the fluid film meet the coating requirements.

For specific implementation of the embodiment of the present invention, please refer to the content of the specific implementation of the in-tube coating device 100 for a slender round tube in the first aspect, which is not described herein again.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. An in-pipe coating device for a slender round pipe is characterized in that,

the device comprises a fixed back plate, a flow control assembly, a film preparation assembly, a collection assembly, a photocuring assembly and an image observation assembly, wherein the flow control assembly comprises an injection pump, an injector, a hose and a hose transfer port, the injection pump is fixedly connected with the fixed back plate and is positioned on one side of the fixed back plate, the injector is detachably connected with the injection pump, one end of the hose is communicated with the injector, the other end of the hose is communicated with the hose transfer port, and the other end of the hose transfer port is in threaded connection with the film preparation assembly;

2. An in-tube coating apparatus for an elongated round tube according to claim 1,

the hose switching interface comprises an interface body, a supporting part and a switching interface sealing ring, wherein the interface body is provided with a conical port and a threaded port, the conical port is fixedly connected with the interface body and is inserted into the hose to be communicated with the hose, the threaded port is fixedly connected with the interface body and is in threaded connection with the drainage box, the supporting part is fixedly connected with the interface body and is sleeved on the interface body, a switching interface groove is formed in the supporting part, and the switching interface sealing ring is positioned in the switching interface groove and supports the drainage box and the hose switching interface.

3. An in-tube coating apparatus for an elongated round tube according to claim 1,

the drainage box has liquid outlet, reservoir and inlet, the liquid outlet vertically runs through the drainage box, and with the drainage sleeve intercommunication, the reservoir is located around the liquid outlet, the liquid outlet with form the stock solution boss between the reservoir, the stock solution boss orientation the upper surface of drainage lid is gapped, the one end of inlet with the reservoir intercommunication, the other end with hose switching mouth intercommunication.

4. An in-tube coating apparatus for an elongated round tube according to claim 3,

the drainage box is further provided with a first groove, the first groove is located on the periphery of the liquid storage tank, the film preparation assembly further comprises a first sealing ring, and the first sealing ring is located in the first groove and abuts against the drainage cover and the drainage box.

5. The apparatus for in-tube coating of an elongated round tube according to claim 4,

the drainage sleeve is provided with a first through hole and a second through hole, the liquid outlet is communicated with the first through hole and the second through hole in sequence, the second through hole is located on one side close to the sealing cover, the diameter of the first through hole is equal to the inner diameter of the coating pipe, the diameter of the second through hole is larger than that of the first through hole, and the diameter of the second through hole is equal to the outer diameter of the coating pipe.

6. An in-tube coating apparatus for an elongated round tube according to claim 1,

7. The apparatus for in-tube coating of an elongated round tube according to claim 6,

8. An in-tube coating apparatus for an elongated round tube according to claim 1,

the platform setting element includes supporting platform, expansion bracket, displacement platform and fixation clamp, supporting platform is located the below of liquid trap, the expansion bracket with supporting platform rotates to be connected to be located supporting platform's below, displacement platform with supporting platform fixed connection, and be located the liquid trap is kept away from one side of image observation subassembly, the fixation clamp with displacement platform fixed connection, the centre gripping the coating film pipe.

9. The apparatus for in-tube coating of an elongated round tube according to claim 8,

the electric sliding rail piece comprises a fixing piece, a screw rod, a driving piece and a sliding piece, the fixing piece is fixedly connected with the fixing clamp and arranged in the same direction as the coating tube, the screw rod is rotatably connected with the fixing piece, an output shaft of the driving piece is matched with the screw rod, and the sliding piece is slidably connected with the screw rod and fixedly connected with the light curing lamp.