Circumferential rotation and axial vibration pipeline FBE inner spraying composite leveling device
The composite leveling device combining circumferential rotation and axial vibration solves the problem of simultaneously achieving circumferential and axial leveling of molten FBE coating during spraying inside steel pipes, realizing high-quality composite leveling of the coating and improving its flatness and smoothness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-03-24
AI Technical Summary
In the prior art, it is difficult to achieve circumferential and axial leveling simultaneously during the spraying of molten FBE coating inside steel pipes, resulting in coating quality defects such as pinholes, sagging, and shrinkage.
A composite leveling device employing circumferential rotation and axial vibration is used to achieve axial vibration and circumferential rotation of the steel pipe through a vibration motor and roller assembly. By utilizing the consistency of phase, frequency, and direction of the eccentric blocks, a static vertical direction and horizontal vibration are formed. Combined with the spraying mechanism, this achieves axial and circumferential composite leveling of molten FBE.
It improves the quality of the coating sprayed inside the pipeline FBE, avoids coating defects, and enhances the smoothness and evenness of the coating.
Smart Images
Figure CN224025395U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of pipeline FBE internal spraying, especially to a pipeline FBE internal spraying composite flow leveling device of circumferential rotation and axial vibration. BACKGROUND
[0002] Flow leveling refers to the flow process before drying and curing after coating construction, so as to form a smooth, smooth and uniform coating film. Whether the coating film can achieve the characteristics of smoothness is called flow leveling. The movement of wet or molten state paint film can be described by the spreading flow-contact angle model on the substrate, the sine wave model from uneven surface to smooth flow, and the Bernoulli vortex in the vertical direction, which correspond to the three main stages of wet film or molten state coating leveling - spreading, pre-flow leveling and post-flow leveling. The surface tension, shear force, viscosity change, solvent and other factors play an important role in each stage.
[0003] Poor flow leveling can easily cause quality defects such as coating pinholes, sagging, shrinkage, and orange peel.
[0004] In the FBE powder internal spraying operation of steel pipes, since the FBE coating is thin and the natural flow leveling after melting is not strong, most of them use steel pipe rotation to promote FBE flow leveling. When the steel pipe rotates, the molten FBE is affected by gravity and tangential centrifugal force, both of which are radial forces, so the steel pipe rotation can only make the molten FBE flow in the circumferential direction. In spraying, the molten FBE needs to flow not only in the circumferential direction, but also in the axial direction.
[0005] Therefore, when the molten FBE flows in the circumferential direction, how to also realize the axial flow of the molten FBE in spraying becomes a technical problem to be solved. UTILITY MODEL CONTENTS
[0006] The utility model aims at providing a pipeline FBE internal spraying composite flow leveling device of circumferential rotation and axial vibration, mainly solves the problem of how to also realize the axial flow of the molten FBE in spraying when the molten FBE flows in the circumferential direction in the prior art, and provides a pipeline FBE internal spraying composite flow leveling device of circumferential rotation and axial vibration.
[0007] In order to achieve the above object, the utility model adopts the technical scheme: a pipeline FBE internal spraying composite flow leveling device of circumferential rotation and axial vibration, its characterized in that: the pipeline FBE internal spraying composite flow leveling device of circumferential rotation and axial vibration includes a plane bearing vibration car, a track, a vibration motor for driving the plane bearing vibration car to carry out axial vibration and a carrier roller assembly for driving the steel pipe to carry out circumferential rotation, the plane bearing vibration car is set on the track, the vibration motor and the carrier roller assembly are all set on the plane bearing vibration car, and the carrier roller assembly is connected with a rotating motor for driving the carrier roller assembly to carry out circumferential rotation.
[0008] Further, the vibration motor includes a first vibration motor and a second vibration motor, the first vibration motor is installed on the upper side of the plane end of the plane bearing vibration car, the second vibration motor is installed on the lower side of the plane end of the plane bearing vibration car, and the first vibration motor and the second vibration motor correspond to the same plane end of the plane bearing vibration car.
[0009] The eccentric blocks of the first vibration motor and the second vibration motor are opposite, and the rotation planes of the two eccentric blocks are parallel to the track.
[0010] Further, the carrier roller assembly includes a roller shaft for driving the steel pipe to carry out circumferential rotation, a rotating motor and a carrier roller frame, the roller shaft is connected with the rotating motor, the rotation of the roller shaft is controlled by the rotating motor, the rotating motor is fixed on the carrier roller frame, and the carrier roller frame is fixed on the plane bearing vibration car.
[0011] Further, the initial phase and the initial position of the eccentric block of the first vibration motor and the second vibration motor are the same when starting, and the rotating speed, the frequency and the rotating direction of the first vibration motor and the second vibration motor are the same when rotating.
[0012] Further, the pipeline FBE internal spraying composite flow leveling device of circumferential rotation and axial vibration further includes a control unit, and the control unit controls the operation of the first vibration motor, the second vibration motor, the rotating motor and the spraying mechanism.
[0013] In view of the above technical features, the utility model has the following beneficial effects:
[0014] 1、 the pipeline FBE internal spraying composite flow leveling device of circumferential rotation and axial vibration of the utility model utilizes the rotating motor of the carrier roller assembly on the plane bearing vibration car to realize the circumferential rotation of the steel pipe, utilizes the vibration motor on the plane bearing vibration car to realize the axial vibration (i.e. the horizontal direction of the steel pipe moves back and forth) of the steel pipe, cooperates with the spraying mechanism, realizes the axial, circumferential composite flow leveling technology of a pipeline FBE powder internal spraying, and improves the quality of the pipeline FBE internal spraying coating through composite flow leveling.
[0015] 2, the utility model discloses a kind of circumferential rotation and axial vibration's pipeline FBE internal spraying composite flow leveling device, when first vibration motor and second vibration motor start, both initial phase, eccentric block starting position are same, rotating speed, frequency, rotating direction are same when rotating.First vibration motor and second vibration motor rotate, vertical direction vibration caused by two eccentric blocks is mutually cancelled out, horizontal direction vibration caused by two eccentric blocks is mutually superimposed, finally form vertical direction stationary, horizontal direction vibration. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 It is the structure diagram (front view) of a kind of circumferential rotation and axial vibration's pipeline FBE internal spraying composite flow leveling device in specific embodiment 1.
[0017] Fig. 2 It is the structure diagram (side view) of a kind of circumferential rotation and axial vibration's pipeline FBE internal spraying composite flow leveling device in specific embodiment 1.
[0018] Fig. 3 It is the vibration synthesis curve of first vibration motor and second vibration motor in specific embodiment 1.
[0019] In the figure: 1, plane bearing vibration car;2, track;31, first vibration motor;32, second vibration motor;4, roller assembly;4-1, roll shaft;5, steel pipe;6, spraying mechanism. DETAILED DESCRIPTION
[0020] The utility model will be further described below in conjunction with specific embodiment. It should be understood that these embodiments are only used to illustrate the utility model and are not used to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the claims attached to the present application.
[0021] Referring to Figs. 1 to 3 , specific embodiment 1, the embodiment 1 provides a kind of circumferential rotation and axial vibration's pipeline FBE internal spraying composite flow leveling device, including plane bearing vibration car 1, track 2, for driving plane bearing vibration car 1 to carry out axial vibration vibration motor and for driving steel pipe 5 to carry out circumferential rotation roller assembly 4, plane bearing vibration car 1 is set on track 2, facilitate plane bearing vibration car 1 can be rolled on track 2 front and back.Vibration motor and roller assembly 4 are all set on plane bearing vibration car 1, such as roller assembly 4 is fixed on the plane of plane bearing vibration car 1.
[0022] The vibration motor comprises a first vibration motor 31 and a second vibration motor 32, the first vibration motor 31 is installed on the upper side of the flat end of the flat-carrying vibration vehicle 1, the second vibration motor 32 is installed on the lower side of the flat end of the flat-carrying vibration vehicle 1, the first vibration motor 31 and the second vibration motor 32 correspond to the same flat end of the flat-carrying vibration vehicle 1;
[0023] The roller assembly 4 comprises a roller shaft 4-1 for driving the steel pipe 5 to rotate circumferentially, a rotating motor (not shown in the figure) and a roller frame (not shown in the figure), the roller shaft 4-1 is connected to the rotating motor, the rotation of the roller shaft 4-1 is controlled by the rotating motor, the rotating motor is fixed on the roller frame, and the roller frame is fixed on the flat-carrying vibration vehicle 1.
[0024] The eccentric blocks of the first vibration motor 31 and the second vibration motor 32 are opposite to each other, and the rotation planes of the two eccentric blocks are parallel to the track 2. When the first vibration motor 31 and the second vibration motor 32 are started, the initial phase and the initial position of the eccentric blocks are the same. When the first vibration motor 31 and the second vibration motor 32 rotate, the rotating speed, the frequency and the rotating direction of the two are the same.
[0025] When the first vibration motor 31 and the second vibration motor 32 rotate, the vertical vibrations caused by the two eccentric blocks cancel each other out, and the horizontal vibrations caused by the two eccentric blocks superimpose on each other, so that the final result is that the steel pipe 5 is stationary in the vertical direction and vibrates in the horizontal direction. The two vibration motors drive the steel pipe 5 on the roller assembly 4 (i.e. on the roller shaft 4-1) to vibrate synchronously (i.e. to move back and forth in the horizontal direction). The vibrations transmitted by the two vibration motors and the rotating motion driven by the roller motor (i.e. the rotating motor) make the steel pipe 5 perform a composite motion of axial vibration and circumferential rotation, which further causes the molten epoxy powder sprayed on the inner wall of the steel pipe 5 to produce a circumferential and axial composite flow, thereby improving the quality of the inner sprayed coating of the pipe FBE.
[0026] During the spraying operation, the steel pipe 5 is placed on the roller shaft 4-1 of the roller assembly 4, the rotating motor on the roller assembly 4 drives the roller shaft 4-1 to rotate, and the roller shaft 4-1 drives the steel pipe 5 to rotate. The first vibration motor 31 and the second vibration motor 32 are installed on the flat-carrying vibration vehicle 1; during spraying, the spraying mechanism 6 enters the steel pipe 5 from one end of the steel pipe 5 to perform inner spraying, the steel pipe 5 performs circumferential rotating motion, and the first vibration motor 31 and the second vibration motor 32 drive the steel pipe 5 to vibrate back and forth in the horizontal direction through the flat-carrying vibration vehicle 1.
[0027] The pipe FBE inner spraying composite flow device of the circumferential rotation and axial vibration further comprises a control unit (such as a PLC), which controls the operation of the first vibration motor 31, the second vibration motor 32, the rotating motor and the spraying mechanism 6.
[0028] In this embodiment 1, the FBE inner spraying of the Φ1016mm steel pipe 5 is taken as an example to illustrate the technical content of the pipe FBE inner spraying composite flow leveling device with circumferential rotation and axial vibration in this embodiment 1.
[0029] 1, Steel pipe 5 specifications: outer diameter Φ1016mm, wall thickness 12.7mm, length 12000mm.
[0030] 2, Inner coating material: phenolic primer + FBE epoxy powder coating.
[0031] 3, Spraying mechanism 6: 28 spray pipes.
[0032] 4, Planar bearing vibration car 1 and track 2: the planar bearing vibration car 1 is welded by square tubes and steel plates. The length is 14m, and the width is 2.5m. The track 2 is a 100mm round steel with polished surface.
[0033] 5, First vibration motor 31, second vibration motor 32 and installation: the first vibration motor 31 and the second vibration motor 32 are selected as single motor eccentric block type. The selected motor is a 380V three-phase alternating current stepping motor with a rated power of 3.5kw, a vibration force of 50kN, a working frequency of 5Hz-60Hz, a vibration displacement of 6mm and a maximum acceleration of about 10g. The encoder is installed on the shaft of the two vibration motors, and synchronous operation is realized through a feedback control system. The PLC is selected as H1U / S type of Hui Chuan, and the encoder is selected as EA series absolute value encoder. The working speed of the vibration motor is 600rpm, 900rpm and 1200rpm in turn.
[0034] Implementation process and effect: when the pipe FBE inner spraying composite flow leveling device with circumferential rotation and axial vibration runs at the speed of 600rpm, 900rpm and 1200rpm, the rotation of the steel pipe 5 and the operation of the planar bearing vibration car 1 are relatively stable. In the composite flow leveling mode of circumferential rotation and axial vibration, the FBE coating has no quality defects such as pinhole, sagging, shrinkage hole and orange peel. The flatness and smoothness of the coating surface are obviously improved compared with the traditional rotary flow leveling.
[0035] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model. Any equivalent structure or equivalent process transformation according to the content of the utility model specification and drawings, or direct or indirect application in other related technical fields is also included in the patent protection range of the utility model.
Claims
1. A circumferentially rotating and axially vibrating pipe FBE internal spray composite flow leveling device, characterized in that: The pipeline FBE internal spraying composite flow leveling device with circumferential rotation and axial vibration comprises a plane-carrying vibration vehicle (1), a track (2), a vibration motor for driving the plane-carrying vibration vehicle (1) to perform axial vibration, and a roller assembly (4) for driving a steel pipe (5) to perform circumferential rotation, the plane-carrying vibration vehicle (1) is arranged on the track (2), the vibration motor and the roller assembly (4) are both arranged on the plane-carrying vibration vehicle (1), and the roller assembly (4) is connected with a rotating motor for driving the roller assembly (4) to perform circumferential rotation.
2. A circumferentially rotating and axially vibrating pipe FBE internal spray composite flow leveling device according to claim 1, characterized in that: The vibration motor comprises a first vibration motor (31) and a second vibration motor (32), the first vibration motor (31) is installed on an upper side of a plane end of the plane-carrying vibration vehicle (1), the second vibration motor (32) is installed on a lower side of the plane end of the plane-carrying vibration vehicle (1), and the first vibration motor (31) and the second vibration motor (32) correspond to the same plane end of the plane-carrying vibration vehicle (1). The eccentric blocks of the first vibration motor (31) and the second vibration motor (32) are opposite to each other, and the rotation planes of the two eccentric blocks are both parallel to the track (2).
3. A circumferentially rotating and axially vibrating pipe FBE internal spray composite flow leveling device according to claim 2, characterized in that: The roller assembly (4) comprises a roller shaft (4-1) for driving the steel pipe (5) to perform circumferential rotation, a rotating motor, and a roller frame, the roller shaft (4-1) is connected with the rotating motor, the rotation of the roller shaft (4-1) is controlled by the rotating motor, the rotating motor is fixed on the roller frame, and the roller frame is fixed on the plane-carrying vibration vehicle (1).
4. A circumferentially rotating and axially vibrating pipe FBE internal spray composite flow leveling device according to claim 3, characterized in that: When the first vibration motor (31) and the second vibration motor (32) are started, the initial phases and the initial positions of the eccentric blocks of the two are the same; when the first vibration motor (31) and the second vibration motor (32) are rotated, the rotating speeds, the frequencies, and the rotating directions of the two are the same.
5. A circumferentially rotating and axially vibrating pipe FBE internal spray composite flow leveling device according to claim 4, characterized in that: The pipeline FBE internal spraying composite flow leveling device further comprises a control unit, the control unit controls the operation of the first vibration motor (31), the second vibration motor (32), the rotating motor, and a spraying mechanism (6).