CN117463591A - Preparation method and preparation device of tubular device inner wall film - Google Patents
Preparation method and preparation device of tubular device inner wall film Download PDFInfo
- Publication number
- CN117463591A CN117463591A CN202311812170.5A CN202311812170A CN117463591A CN 117463591 A CN117463591 A CN 117463591A CN 202311812170 A CN202311812170 A CN 202311812170A CN 117463591 A CN117463591 A CN 117463591A
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- Prior art keywords
- spraying
- tubular device
- wall
- spray
- tube
- Prior art date
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- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 238000005507 spraying Methods 0.000 claims abstract description 254
- 239000007921 spray Substances 0.000 claims abstract description 122
- 239000006260 foam Substances 0.000 claims abstract description 54
- 239000010408 film Substances 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 39
- 239000010409 thin film Substances 0.000 claims abstract description 20
- 230000008595 infiltration Effects 0.000 claims abstract description 16
- 238000001764 infiltration Methods 0.000 claims abstract description 16
- 230000009471 action Effects 0.000 claims abstract description 10
- 238000011049 filling Methods 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims description 63
- 238000001514 detection method Methods 0.000 claims description 50
- 230000008569 process Effects 0.000 claims description 31
- 230000007246 mechanism Effects 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 11
- 230000033001 locomotion Effects 0.000 claims description 9
- 238000002791 soaking Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000012795 verification Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000009736 wetting Methods 0.000 claims description 3
- 230000036962 time dependent Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 239000012466 permeate Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
- B05D7/222—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes of pipes
- B05D7/225—Coating inside the pipe
-
- 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
- B05B13/0627—Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies
- B05B13/0636—Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies by means of rotatable spray heads or nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Spray Control Apparatus (AREA)
Abstract
The invention belongs to the technical field of film spraying, and discloses a preparation method and a preparation device of a tubular device inner wall film, wherein the preparation method of the tubular device inner wall film comprises the following steps: filling a spraying medium into the spraying pipe; spraying medium injected into the spraying pipe flows to the end part of the spraying pipe along the axial direction of the spraying pipe, and infiltrates foam at the end part of the spraying pipe, and when the spraying port flows out of the spraying medium, the infiltration is completed; inserting a spray tube into the tubular device, rotating the spray tube about its axis within the tubular device, and feeding the spray tube within the tubular device in its axial direction, the rotating action of the spray tube being concurrent or alternating with the feeding action of the spray tube, to spray a spray medium onto the inner wall of the tubular device through a spray orifice provided at the end of the spray tube. Compared with manual spraying, the method for preparing the thin film on the inner wall of the tubular device has high working efficiency, and the uniformity of the prepared thin film and the thickness of all positions can be ensured to meet the requirements.
Description
Technical Field
The invention relates to the technical field of film spraying, in particular to a preparation method and a preparation device of a tubular device inner wall film.
Background
At present, in the production process of structures such as medical instruments or automobile parts, a part of tubular devices needs to be provided with a film on the inner wall thereof.
In the prior art, a film is generally prepared on the inner wall of a tubular device in a manual spraying mode, specifically, a worker holds a spray gun and stretches the spray gun into the tubular device, so that a layer of film is sprayed on the inner wall of the tubular device through the spray gun, the manual spraying work efficiency is low, and the prepared film is easy to have the conditions of low uniformity and unsatisfactory thickness of part of positions.
Therefore, the above-described problems are to be solved.
Disclosure of Invention
The invention aims to provide a preparation method and a preparation device of a tubular device inner wall film, which are used for solving the problems that the working efficiency of manual spraying is low, and the prepared film is easy to have low uniformity and the thickness of part of the positions is not satisfied.
To achieve the purpose, the invention adopts the following technical scheme:
in one aspect, the present invention provides a method for preparing a film on an inner wall of a tubular device, including:
filling a spraying medium into the spraying pipe;
the spraying medium injected into the spraying pipe flows to the end part of the spraying pipe along the axial direction of the spraying pipe, and wets foam positioned at the end part of the spraying pipe, and when a spraying opening positioned on a spray head at the periphery of the foam flows out of the spraying medium, the wetting is completed;
inserting the spray tube into a tubular device, rotating the spray tube about its axis within the tubular device, and feeding the spray tube within the tubular device in its axial direction, the rotating action of the spray tube being concurrent or alternating with the feeding action of the spray tube to spray the spray medium through the spray opening onto the inner wall of the tubular device.
Preferably, the preparation method of the tubular device inner wall film further comprises the following steps:
before the spray tube is inserted into a tubular device for spraying, calibrating the spray parameters of the spray tube, wherein the spray parameters comprise the total amount of fluid sprayed onto the inner wall of the tubular device and the motion parameters of the spray tube in the tubular device.
Preferably, after the infiltration is completed, the spray tube is inserted into a detection cup, and the detection cup and the tubular device are profiled;
the spraying pipe moves in the detection cup according to a preset rotating speed and a preset feeding speed so as to spray the spraying medium on the inner wall of the detection cup;
setting a preset total amount of fluid, and monitoring the change relation of the amount of the fluid sprayed onto the inner wall of the detection cup along with time in the spraying process and the total amount of the fluid sprayed onto the inner wall of the detection cup after the spraying is finished;
if the change relation of the amount of the fluid sprayed onto the inner wall of the detection cup along with time in the spraying process and the total amount of the fluid sprayed onto the inner wall of the detection cup after the spraying is completed meet the requirements, the foam is soaked again, and the spraying pipe is inserted into the tubular device after the soaking is completed, so that the spraying medium is sprayed onto the inner wall of the tubular device through a spraying opening arranged at the end part of the spraying pipe.
Preferably, the detection cup is placed on an electronic scale, the total amount of the preset fluid is set, and the electronic scale is cleared;
and detecting the change relation of the weight of the detection cup along with time, and detecting the weight of the detection cup after spraying is completed.
Preferably, if the total amount of the fluid sprayed onto the inner wall of the tubular device is smaller than the total amount of the fluid accumulated on the foam after the soaking is completed, stopping filling the spraying medium into the spraying pipe in the spraying process;
if the total amount of the preset fluid sprayed onto the inner wall of the tubular device is larger than the total amount of the fluid accumulated on the foam after the soaking is completed, the spraying medium is kept to be filled into the spraying pipe in the spraying process.
Preferably, when the spraying medium is first filled into the spraying pipe or the spraying medium is filled into the spraying pipe again after the interval is not less than a preset time, the spraying pipe is rotated after the infiltration is completed, so that the foam is completely wetted.
Preferably, the pressure in the spray tube is maintained by a gas source during the spraying process.
The invention also provides a preparation device of the inner wall film of the tubular device, which prepares the film on the inner wall of the tubular device by the preparation method of the inner wall film of the tubular device, and the preparation device of the inner wall film of the tubular device comprises the following steps:
the spraying device comprises a spraying pipe, wherein a passage is formed in the spraying pipe along the axial direction of the spraying pipe, one end of the spraying pipe is provided with a communication port, the communication port is communicated with a liquid source, the liquid source is configured to supply spraying media into the spraying pipe, a spray head is arranged at the other end of the spraying pipe, the spray head is sleeved on the periphery of the spraying pipe, foam is sleeved between the spray head and the spraying pipe, the spraying pipe is provided with a circulation port, the foam is sleeved on the periphery of the circulation port, the spray head is provided with a spraying port, and the spraying port is positioned on the periphery of the foam; and a drive mechanism including a first drive member configured to drive the spray tube in rotation about an axis thereof and a second drive member configured to drive the spray tube in axial movement thereof.
Preferably, the apparatus for preparing a film on an inner wall of a tubular device further comprises a calibration mechanism configured to calibrate the spraying parameters of the spraying tube, the spraying parameters including the total amount of fluid sprayed onto the inner wall of the tubular device and the movement parameters of the spraying tube within the tubular device.
Preferably, the apparatus for preparing a thin film on an inner wall of a tubular device further comprises an air source disposed at an end of the spray tube and disposed at the same end of the spray tube as the liquid source, the air source being configured to remain pressurized inside the spray tube during the spraying process.
The invention has the beneficial effects that: compared with manual spraying, the preparation method of the thin film on the inner wall of the tubular device does not need to be manually participated, has high working efficiency, and can control the flow of the spraying medium sprayed to the surface of the tubular device by controlling the rotating speed and the feeding speed of the spraying pipe, thereby ensuring that the uniformity of the prepared thin film and the thickness of all positions meet the requirements.
Drawings
FIG. 1 is a flow chart of a method of preparing a thin film of an inner wall of a tubular device in an embodiment of the invention;
FIG. 2 is a schematic structural view of a device for preparing a thin film on an inner wall of a tubular device except for a verification mechanism according to an embodiment of the present invention;
FIG. 3 is a second schematic structural view of a device for preparing a thin film on an inner wall of a tubular device except for a verification mechanism according to an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a partial enlarged view at B in FIG. 3;
FIG. 6 is a schematic diagram of a verification mechanism in an embodiment of the invention.
In the figure:
1. a spray pipe; 11. a spray head; 111. a spraying port; 12. soaking cotton; 13. a flow port; 14. a thread groove; 15. a caulking groove; 16. a valve; 17. a flow meter;
2. a liquid source;
3. a driving mechanism; 31. a first driving member; 32. a second driving member; 33. a spline nut seat; 34. a screw rod nut seat;
4. a checking mechanism; 41. an electronic scale; 42. and (5) detecting the cup.
Description of the embodiments
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
Referring to fig. 1 in combination with fig. 2 to 6, the present embodiment provides a method for preparing a thin film on an inner wall of a tubular device, where the method for preparing a thin film on an inner wall of a tubular device includes:
filling a spraying medium into the spraying pipe 1;
the spraying medium injected into the spraying pipe 1 flows to the end part of the spraying pipe 1 along the axial direction of the spraying pipe 1 and wets the foam 12 positioned at the end part of the spraying pipe 1, and when the spraying opening 111 positioned on the spray head 11 at the periphery of the foam 12 flows out of the spraying medium, the wetting is completed;
inserting the spray tube 1 into the tubular member, rotating the spray tube 1 about its axis within the tubular member, and feeding the spray tube 1 in its axial direction within the tubular member, the rotating action of the spray tube 1 being performed simultaneously or alternately with the feeding action of the spray tube 1 to spray the spray medium onto the inner wall of the tubular member through the spray opening 111.
That is, in this embodiment, the spraying medium first permeates into the foam 12 and then is sprayed onto the inner wall of the tubular device under the action of the centrifugal force, and compared with manual spraying, the preparation method of the inner wall film of the tubular device in this embodiment does not need to be manually involved, and has high working efficiency, and the embodiment can control the flow of the spraying medium sprayed to the surface of the tubular device by controlling the rotation speed and the feeding speed of the spraying pipe 1, thereby ensuring that the uniformity of the prepared film and the thickness of all positions meet the requirements.
Specifically, in this embodiment, firstly, the spraying medium is filled into the spraying tube 1 to infiltrate the foam 12, when the spraying medium flows out from the spraying opening 111, the infiltration is completed, at this time, the interior of the foam 12 is in a wet state, and then, when the spraying tube 1 is inserted into the tubular device, when the spraying tube 1 rotates around its axis, the spraying medium in the foam 12 can fly to the inner wall of the tubular device under the action of centrifugal force, thereby realizing spraying of the spraying medium on the inner wall of the tubular device. It will be appreciated that the spraying tube 1 in this embodiment may form a thin film on the inner wall of the tubular device by performing the rotation and the feeding simultaneously or alternately, specifically, if the spraying tube 1 performs the rotation and the feeding simultaneously, the movement track of the spraying tube 1 in the tubular device is a spiral track, so that the spraying medium can be spin-coated on the inner wall of the tubular device, and further a thin film is formed on the inner wall of the tubular device, if the spraying tube 1 performs the rotation and the feeding alternately, that is, the spraying tube 1 performs the feeding in a stepwise manner, and the position of the spraying tube 1 in the axial direction of the tubular device is maintained for a fixed period of time after each feeding of the spraying tube 1, during which the spraying tube 1 rotates about its axis, so that the spraying medium is sprayed on the position opposite to the spraying port 111 on the tubular device, and further a thin film is formed on the inner wall of the tubular device, and since the end of the spraying tube 1 is provided with the foam 12, the spraying medium does not flow out of the spraying tube 1 when the spraying tube 1 is fed in the axial direction of the tubular device.
It will be appreciated that the manner in which the coating tube 1 is formed into a thin film on the inner wall of the tubular member may be specifically selected according to the actual situation, and this is not particularly limited in the present embodiment.
If the preset total amount of fluid sprayed onto the inner wall of the tubular device is smaller than the total amount of fluid accumulated on the foam 12 after the completion of infiltration, the filling of the spray medium into the spray tube 1 is stopped during the spraying process. That is, if the total amount of the preset fluid sprayed onto the inner wall of the tubular device is smaller than the total amount of the fluid accumulated on the foam 12 after the infiltration is completed, all the spraying media sprayed onto the inner wall of the tubular device are the spraying media accumulated in the foam 12 during the infiltration process.
If the total amount of the preset fluid sprayed onto the inner wall of the tubular device is greater than the total amount of the fluid accumulated on the foam 12 after the infiltration is completed, the spraying medium is injected into the spraying tube 1 in the spraying process, that is, the spraying medium injected into the spraying tube 1 gradually permeates into the foam 12 as the spraying medium gradually flies out of the foam 12 in the spraying process, and the total amount of the spraying medium contained in the foam 12 is kept unchanged.
It should be noted that, since the foam 12 is in a dry state before the spraying medium is first filled into the spraying tube 1 or the spraying medium is filled into the spraying tube 1 again after the interval is not less than the preset time, when the spraying medium is first filled into the spraying tube 1 or the spraying medium is filled into the spraying tube 1 again after the interval is not less than the preset time, the spraying tube 1 needs to be rotated so that the foam 12 is completely wetted, in other words, when the spraying medium is first filled into the spraying tube 1 or the spraying medium is filled into the spraying tube 1 again after the interval is long, the spraying tube 1 needs to be rotated after the infiltration is completed so that the foam 12 is completely wetted, that is, on one hand, the total amount of the spraying medium stored in the foam 12 can be ensured to be uniformly wetted, on the one hand, the total amount of the fluid stored in the foam 12 is ensured to be smaller than the total amount of the fluid stored in the foam 12 after the completion of the infiltration is ensured, on the inner wall of the tubular device, on the other hand, the foam 12 can be prepared to be completely wetted, on the other hand, the film can be also prepared on the inner wall of the tubular device, and on the other hand, when the film can be further required to be uniformly sprayed in the dry state at the position of the tubular device is still in the position of the required position to be sprayed by rotating the drying position, and can be further ensured, and can not meet the requirements of the uniform position of the film can be immediately sprayed after the position is required to be sprayed in the dried.
Referring to fig. 2 to 6, and referring to fig. 1, based on the foregoing description, the present embodiment further provides a preparation apparatus for a tubular device inner wall film, the preparation apparatus for a tubular device inner wall film prepares a film on an inner wall of a tubular device by a preparation method for a tubular device inner wall film as described above, in this embodiment, the preparation apparatus for a tubular device inner wall film includes a spray tube 1 and a driving mechanism 3, a passage is provided in an inner portion of the spray tube 1 along an axial direction thereof, one end of the spray tube 1 is provided with a communication port, the communication port is communicated with a liquid source 2, the liquid source 2 is configured to supply a spray medium into the spray tube 1, the other end of the spray tube 1 is provided with a spray head 11, the spray head 11 is sleeved on an outer periphery of the spray tube 1, a foam 12 is sleeved between the spray head 11 and the spray tube 1, the spray tube 1 is provided with a circulation port 13, the foam 12 is sleeved on an outer periphery of the circulation port 13, the spray port 111 is located on an outer periphery of the foam 12, and initially, the liquid source 2 fills a medium into the spray tube 1, and permeates the spray medium into the spray tube through the circulation port 12 when the foam 12 is permeated into the foam through the circulation port 111.
The driving mechanism 3 includes a first driving member 31 and a second driving member 32, where the first driving member 31 is configured to drive the spray coating tube 1 to rotate around its axis, the second driving member 32 is configured to drive the spray coating tube 1 to move axially along its axis, and in this embodiment, the first driving member 31 and the second driving member 32 are both driving structures such as a stepping motor or a servo motor, the outer wall of the spray coating tube 1 extends spirally along its axis, and the outer wall of the spray coating tube 1 is provided with a caulking groove 15 extending axially along its axis, the first driving member 31 is in transmission connection with a spline nut seat 33, the second driving member 32 is in transmission connection with a lead screw nut seat 34, the spray coating tube 1 is in key connection with the spline nut seat 33 through the caulking groove 15, and is in threaded connection with the lead screw nut seat 34 through the thread groove 14, the first driving member 31 can drive the spline nut seat 33 to rotate around the axis of the spray coating tube 1, and the second driving member 32 can drive the lead screw nut seat 34 to rotate around the axis of the spray coating tube 1, in this embodiment, the working state of the first driving member 31 and the second driving member 32 can be controlled to control the working state of the spray coating tube 1, and the second driving member 32 can simultaneously rotate around the axis of the spline nut seat 33 and the spline nut seat 33, and the second driving member 32 can simultaneously rotate around the spline nut seat 33, and the spline nut 33 simultaneously rotate around the spline nut seat 33, and the spline nut 33, and the second driving member 32 can simultaneously rotate around the spline nut seat 32, and the spline nut 32.
It will be appreciated that in other alternative embodiments, the second driving member 32 may be a linear driving structure such as an air cylinder or an electric cylinder, the first driving member 31 is still a driving structure such as a stepper motor or a servo motor, the first driving member 31 can drive the spray coating tube 1 to rotate around the first driving member, and the second driving member 32 can drive the first driving member 31 and the spray coating tube 1 to move along the axis of the spray coating tube 1 together, so that the rotation of the spray coating tube 1 and the feeding of the spray coating tube 1 are performed simultaneously or alternately, and the structure of the driving mechanism 3 is not particularly limited in this embodiment.
The spraying pipe 1 is also provided with a valve 16, and the valve 16 is used for controlling the on-off of the communication port so as to control the start and stop of the filling operation. It should be understood that the specific structure and operation principle of the valve 16 are all the prior art, and therefore, the description thereof will not be repeated in this embodiment.
Compared with manual spraying, the preparation device of the inner wall film of the tubular device in the embodiment does not need manual participation, has high working efficiency, and can control the flow of the spraying medium sprayed to the surface of the tubular device by controlling the rotating speed and the feeding speed of the spraying pipe 1, thereby ensuring that the uniformity of the prepared film and the thickness of all positions meet the requirements.
It should be further noted that, in this embodiment, at least two circulation ports 13 are provided on the spraying tube 1, and the at least two circulation ports 13 are uniformly arranged around the axis of the spraying tube 1, so as to ensure that the spraying medium can uniformly infiltrate into the foam 12, and at least two spraying ports 111 are provided on the nozzle 11, and the at least two spraying ports 111 are uniformly arranged around the axis of the spraying tube 1, so as to ensure that the spraying medium can be uniformly sprayed onto the inner wall of the tubular device, and in this embodiment, the number of the circulation ports 13 and the spraying ports 111 is not particularly limited.
Further, the preparation method of the tubular device inner wall film in this embodiment further includes:
before the spray tube 1 is inserted into the tubular device for spraying, the spray parameters of the spray tube 1 are calibrated, the spray parameters including the total amount of fluid sprayed onto the inner wall of the tubular device and the movement parameters of the spray tube 1 within the tubular device.
That is, in this embodiment, the spraying parameters are calibrated before the spraying operation, so that the uniformity of the prepared film and the thickness of all positions are further ensured to meet the requirements.
Based on the above, after the infiltration is completed, in this embodiment, the spray tube 1 is first inserted into the detection cup 42, the detection cup 42 is profiled with the tubular device, and then the spray tube 1 moves in the detection cup 42 according to the preset rotation speed and the preset feeding speed to spray the spray medium onto the inner wall of the detection cup 42, that is, in this embodiment, the spray parameters are calibrated by simulating the spray operation.
After the spray tube 1 is inserted into the detection cup 42, in this embodiment, a preset total amount of fluid is first set, where the preset total amount of fluid is the total amount of fluid of the spray medium required to be sprayed on the tubular device, then the spray tube 1 is moved in the detection cup 42 according to a preset rotation speed and a preset feeding speed, and at the same time, the change relation of the amount of fluid sprayed on the inner wall of the detection cup 42 with time during the spraying process and the total amount of fluid sprayed on the inner wall of the detection cup 42 after the spraying process are monitored, so as to monitor whether the amount of fluid sprayed on the inner wall of the detection cup 42 in a unit time and the total amount of fluid sprayed on the inner wall of the detection cup 42 after the spraying process are completed meet the requirements, thereby detecting whether the uniformity of the prepared film and the thickness of all positions meet the requirements.
If the time-dependent relationship of the amount of the fluid sprayed onto the inner wall of the detection cup 42 during the spraying process and the total amount of the fluid sprayed onto the inner wall of the detection cup 42 after the completion of the spraying process satisfy the requirements, the foam 12 is soaked again, and after the soaking is completed, the spraying pipe 1 is inserted into the tubular device to spray the spraying medium onto the inner wall of the tubular device through the spraying opening 111 provided at the end of the spraying pipe 1, that is, if the time-dependent relationship of the amount of the fluid sprayed onto the inner wall of the detection cup 42 during the spraying process and the total amount of the fluid sprayed onto the inner wall of the detection cup 42 after the completion of the spraying satisfy the requirements, the spraying operation is performed by the spraying pipe 1 according to the preset rotation speed and the preset feeding speed described above.
If the time-dependent relation of the amount of fluid sprayed onto the inner wall of the detection cup 42 during the spraying process and the total amount of fluid sprayed onto the inner wall of the detection cup 42 after the spraying process are not satisfied, the foam 12 is soaked again, the spraying pipe 1 is inserted into a new detection cup 42 after the soaking process is completed, and then the spraying pipe 1 moves in the detection cup 42 according to the preset rotating speed and the preset feeding speed, until the monitored amount of fluid sprayed onto the inner wall of the detection cup 42 in unit time and the total amount of fluid sprayed onto the inner wall of the detection cup 42 after the spraying process are completed satisfy the requirements.
In addition, in this embodiment, the detecting cup 42 is first placed on the electronic scale 41, then the preset total fluid amount is set, and the electronic scale 41 is cleared, then the time-dependent change relation of the weight of the detecting cup 42 and the weight of the detecting cup 42 after spraying are detected, that is, the time-dependent change relation of the fluid amount sprayed onto the inner wall of the detecting cup 42 and the total fluid amount sprayed onto the inner wall of the detecting cup 42 after spraying are monitored by detecting the time-dependent change relation of the weight of the detecting cup 42 and the weight of the detecting cup 42 after spraying are detected, and the monitoring method is simple.
Based on the above, the apparatus for preparing a thin film on an inner wall of a tubular device in this embodiment further includes a calibration mechanism 4, where the calibration mechanism 4 is configured to calibrate the spraying parameters of the spraying tube 1, where the spraying parameters include the total amount of fluid sprayed onto the inner wall of the tubular device and the movement parameters of the spraying tube 1 in the tubular device, so as to further ensure that the uniformity of the prepared thin film and the thickness of all positions meet the requirements.
Specifically, the verification mechanism 4 includes an electronic scale 41 and a detection cup 42, wherein the detection cup 42 is contoured to a tubular device, and the electronic scale 41 is used for detecting a weight change of the detection cup 42 during spraying, so as to detect an amount of fluid sprayed onto the detection cup 42 in a unit time and a total amount of fluid sprayed onto an inner wall of the detection cup 42 after spraying is completed.
It will be appreciated that whether the spray tube 1 is inserted into the detection cup 42 or the spray tube 1 is inserted into the tubular device is performed after the spray orifice 111 of the spray tube 1 stops flowing out of the spray medium, whether the spray medium is to be filled into the spray tube 1 during the spraying process is determined as appropriate after the spray tube 1 is inserted into the detection cup 42 or the spray tube 1 is inserted into the tubular device, specifically, if the preset total amount of fluid sprayed onto the inner wall of the tubular device is smaller than the total amount of fluid accumulated on the foam 12 after the completion of the infiltration, the filling of the spray medium into the spray tube 1 is stopped during the spraying process, and if the preset total amount of fluid sprayed onto the inner wall of the tubular device is greater than the total amount of fluid accumulated on the foam 12 after the completion of the infiltration, the filling of the spray medium into the spray tube 1 is maintained during the spraying process.
In addition, it should be noted that, in this embodiment, the spraying tube 1 is further provided with a flow meter 17, where the flow meter 17 and the liquid source 2 are disposed at the same end of the spraying tube 1, and when the total amount of fluid sprayed onto the inner wall of the tubular device is greater than the total amount of fluid deposited on the foam 12 after the immersion is completed, that is, when the spraying medium needs to be kept to be filled into the spraying tube 1 during the spraying process, the flow meter 17 can be used to detect the total amount of the spraying medium filled into the spraying tube 1 during the spraying process, so that on one hand, it can be used to assist in monitoring whether the total amount of fluid sprayed onto the inner wall of the detection cup 42 after the spraying is completed is equal to the total amount of the preset fluid, and on the other hand, it can also be used to monitor whether the total amount of fluid sprayed onto the inner wall of the tubular device in the spraying operation meets the requirements.
Further, in the present embodiment, the air source (not shown) is kept pressurized into the spray tube 1 during the spraying process, so that on the one hand, the filled spraying medium can be ensured to effectively penetrate into the foam 12, and on the other hand, the spraying medium in the foam 12 can be ensured to effectively be sprayed out of the foam 12.
Based on the above, the apparatus for preparing a thin film on an inner wall of a tubular device in this embodiment further includes an air source disposed at an end of the spray tube 1 and disposed at the same end of the spray tube 1 as the liquid source 2, the air source being configured to be kept pressurized inside the spray tube 1 during the spraying process.
It should be noted that, in this embodiment, the calibration operation may be performed by using the pressure applied to the spray tube 1 by the air source, so as to further ensure that the uniformity of the prepared film and the thickness of all positions meet the requirements.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the invention. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (10)
1. The preparation method of the tubular device inner wall film is characterized by comprising the following steps:
filling a spraying medium into the spraying pipe (1);
the spraying medium injected into the spraying pipe (1) flows to the end part of the spraying pipe (1) along the axial direction of the spraying pipe (1) and wets foam (12) positioned at the end part of the spraying pipe (1), and when a spraying opening (111) positioned on a spray head (11) at the periphery of the foam (12) flows out of the spraying medium, the wetting is completed;
inserting the spray tube (1) into a tubular device, rotating the spray tube (1) about its axis within the tubular device, and feeding the spray tube (1) in its axial direction within the tubular device, the rotating action of the spray tube (1) being performed simultaneously or alternately with the feeding action of the spray tube (1) to spray the spray medium through the spray opening (111) onto the inner wall of the tubular device.
2. The method for producing a tubular device inner wall film according to claim 1, wherein the method for producing a tubular device inner wall film further comprises:
before the spray tube (1) is inserted into a tubular device for spraying, calibrating the spray parameters of the spray tube (1), wherein the spray parameters comprise the total amount of fluid sprayed onto the inner wall of the tubular device and the motion parameters of the spray tube (1) in the tubular device.
3. The method for preparing a tubular device inner wall film according to claim 2, characterized in that, after infiltration is completed, the spray tube (1) is inserted into a detection cup (42), the detection cup (42) being profiled with the tubular device;
the spraying pipe (1) moves in the detection cup (42) according to a preset rotating speed and a preset feeding speed so as to spray the spraying medium on the inner wall of the detection cup (42);
setting a preset total amount of fluid, and monitoring the change relation of the amount of the fluid sprayed onto the inner wall of the detection cup (42) along with time in the spraying process and the total amount of the fluid sprayed onto the inner wall of the detection cup (42) after the spraying is finished;
if the change relation of the amount of the fluid sprayed onto the inner wall of the detection cup (42) along with time in the spraying process and the total amount of the fluid sprayed onto the inner wall of the detection cup (42) after the spraying is completed meet the requirements, the foam (12) is soaked again, and the spraying pipe (1) is inserted into the tubular device after the soaking is completed, so that the spraying medium is sprayed onto the inner wall of the tubular device through a spraying opening (111) arranged at the end part of the spraying pipe (1).
4. A method of manufacturing a tubular device inner wall film according to claim 3, characterized in that the detection cup (42) is placed on an electronic scale (41), the preset total amount of fluid is set, and the electronic scale (41) is cleared;
and detecting the change relation of the weight of the detection cup (42) with time, and detecting the weight of the detection cup (42) after spraying is completed.
5. The method for producing a tubular device inner wall film according to claim 1, characterized in that if the total amount of fluid preset to be sprayed onto the inner wall of the tubular device is smaller than the total amount of fluid accumulated on the foam (12) after completion of infiltration, the filling of the spraying medium into the spraying tube (1) is stopped during spraying;
if the total amount of the preset fluid sprayed onto the inner wall of the tubular device is larger than the total amount of the fluid accumulated on the foam (12) after the soaking is completed, the spraying medium is kept to be filled into the spraying pipe (1) in the spraying process.
6. Method for producing a tubular device inner wall film according to claim 1, characterized in that, when the spraying medium is first filled into the spraying tube (1) or the spraying medium is again filled into the spraying tube (1) after a time interval not smaller than a preset time interval, the spraying tube (1) is rotated after the infiltration is completed so that the foam (12) is completely wetted.
7. A method of producing a tubular device inner wall film according to claim 1, characterized in that the pressure in the spray tube (1) is maintained by a gas source during the spraying process.
8. Apparatus for producing a thin film on an inner wall of a tubular device by the method for producing a thin film on an inner wall of a tubular device according to any one of claims 1 to 7, characterized in that the apparatus for producing a thin film on an inner wall of a tubular device comprises:
the spraying pipe (1), the inside of spraying pipe (1) is provided with the passageway along its axial, the one end of spraying pipe (1) is provided with the intercommunication mouth, the intercommunication mouth communicates with liquid source (2), liquid source (2) are configured to supply with spraying medium in spraying pipe (1), the other end of spraying pipe (1) is provided with shower nozzle (11), shower nozzle (11) cover is located the periphery of spraying pipe (1), just shower nozzle (11) with the cover is equipped with foam (12) between spraying pipe (1), be provided with circulation mouth (13) on spraying pipe (1), foam (12) cover is located the periphery of circulation mouth (13), be provided with spraying mouth (111) on shower nozzle (11), spraying mouth (111) are located the periphery of foam (12). And
A drive mechanism (3) comprising a first drive member (31) and a second drive member (32), the first drive member (31) being configured to drive the spray tube (1) in rotation about its axis, the second drive member (32) being configured to drive the spray tube (1) in axial movement thereof.
9. The apparatus for preparing a tubular device inner wall film according to claim 8, characterized in that it further comprises a verification mechanism (4), said verification mechanism (4) being configured to calibrate the spraying parameters of the spraying tube (1), said spraying parameters comprising the total amount of fluid sprayed onto the inner wall of the tubular device and the movement parameters of the spraying tube (1) within the tubular device.
10. The apparatus for producing a tubular device inner wall film according to claim 8, further comprising a gas source provided at an end of the spray pipe (1) and provided at the same end of the spray pipe (1) as the liquid source (2), the gas source being configured to be kept pressurized inside the spray pipe (1) during the spraying.
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| CN202311812170.5A CN117463591B (en) | 2023-12-27 | 2023-12-27 | Preparation method and preparation device of tubular device inner wall film |
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| CN202311812170.5A CN117463591B (en) | 2023-12-27 | 2023-12-27 | Preparation method and preparation device of tubular device inner wall film |
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| CN116393308A (en) * | 2023-04-29 | 2023-07-07 | 游嘉敏 | Uniform and continuous oiling device for surface of tubular part |
| CN219996821U (en) * | 2023-05-05 | 2023-11-10 | 四川宏凯化工科技有限公司 | Coating viscosity detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202137093U (en) * | 2011-06-14 | 2012-02-08 | 上海上水自来水特种工程有限公司 | Long-distance centrifugal spray coating machine |
| CN208991040U (en) * | 2018-06-20 | 2019-06-18 | 无锡市东明冠特种金属制造有限公司 | A kind of automatic spraying vehicle of centrifugation |
| CN113909034A (en) * | 2021-09-15 | 2022-01-11 | 温州市华宁建筑机械有限公司 | Walking type horizontal pipeline centrifugal spraying machine |
| CN115318473A (en) * | 2022-10-14 | 2022-11-11 | 山东海川智能装备科技有限公司 | Pipe fitting inner wall electrostatic spraying device |
| CN115555169A (en) * | 2022-10-27 | 2023-01-03 | 华能国际电力股份有限公司 | Pipe inner wall spraying device |
| CN116393308A (en) * | 2023-04-29 | 2023-07-07 | 游嘉敏 | Uniform and continuous oiling device for surface of tubular part |
| CN219996821U (en) * | 2023-05-05 | 2023-11-10 | 四川宏凯化工科技有限公司 | Coating viscosity detection device |
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|---|---|
| CN117463591B (en) | 2024-04-05 |
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