JP7006644B2 - Tubular member cleaning device and tubular member cleaning method - Google Patents

Description

The present disclosure mainly relates to a tubular member cleaning device and a tubular member cleaning method.

Conventionally, synthetic resin-coated steel pipes in which the outer surface of the steel pipe is coated with synthetic resin have excellent anticorrosion performance, and are widely used as buried steel pipes for gas pipes, petroleum pipelines, cable protection pipes, and the like.

Such synthetic resin-coated steel pipes include, for example, polyethylene-coated steel pipes in which the outer surface of the steel pipe is coated with polyethylene. This polyethylene-coated steel pipe is formed by undercoating the outer surface of the steel pipe with an adhesive and then sequentially coating it with an anticorrosion layer containing a polyethylene-based resin and a packing layer also containing a polyethylene-based resin.

By the way, if foreign matter such as dust, machine oil, scale, etc. adheres to the outer peripheral surface of the steel pipe after covering the above-mentioned anticorrosion layer, the appearance may be deteriorated due to the above-mentioned foreign matter when the packing layer is subsequently covered. was there.

To solve such a problem, for example, Patent Document 1 discloses a descaling device that removes scale on the outer surface of a steel pipe with high-pressure water.

Japanese Unexamined Patent Publication No. 6-238321

However, the descaling device described in Patent Document 1 may not be able to sufficiently remove foreign substances such as dust and scale adhering to the anticorrosion layer having high adhesive strength. In addition, fine foreign matter in the high-pressure water sprayed on the anticorrosion layer may newly adhere, and there is room for improvement.

The present disclosure has been developed in view of such circumstances, and an object of the present invention is to provide a tubular member cleaning device capable of effectively removing foreign matter adhering to a tubular member such as a steel pipe, and a tubular member cleaning method. And.

The tubular member cleaning device of the present disclosure is
A tubular member cleaning device that cleans tubular members that move in the axial direction.
A bobbin around which a long wipe medium is wound and stored,
A wipe medium fixing portion for fixing one end of the wipe medium in the longitudinal direction,
A bobbin moving means for moving the bobbin on the orbit along the outer peripheral surface of the tubular member on the radial outer side of the tubular member .
A stopper provided on the downstream side in the moving direction of the tubular member with respect to the wiping medium and limiting the movement of the wiping medium to the downstream side in the moving direction of the tubular member.
It is characterized by having.

In the tubular member cleaning device of the present disclosure, in the above configuration, the stopper includes at least a pair of stopper fixing members provided at positions facing each other in the radial direction with respect to the tubular member in a non-operating state of the stopper, and at least a pair of the stopper fixing members. It has a stopper medium spanned between the stopper fixing members, and one of the stopper fixing members of the at least one pair of stopper fixing members moves in a plane orthogonal to the axis of the tubular member to the tubular member. It is preferable that the stopper medium comes into contact with the stopper medium to shift to the operating state of the stopper.

In the tubular member cleaning device of the present disclosure, it is preferable that the tension applied to the stopper medium is larger than the tension applied to the wiping medium in the above configuration.

The tubular member cleaning device of the present disclosure is
A tubular member cleaning device that cleans tubular members that move in the axial direction.
A bobbin around which a long wipe medium is wound and stored,
A wipe medium fixing portion for fixing one end of the wipe medium in the longitudinal direction,
With the bobbin moving means for moving the bobbin on the orbit along the outer peripheral surface of the tubular member on the radial outer side of the tubular member.
Equipped with
The bobbin moving means has a ring-shaped member that rotates radially outside the tubular member about an axis, and the bobbin can rotate relative to the ring-shaped member at one position in the circumferential direction of the ring-shaped member. It is characterized by being attached to.

The tubular member cleaning device of the present disclosure is
A tubular member cleaning device that cleans tubular members that move in the axial direction.
A bobbin around which a long wipe medium is wound and stored,
A wipe medium fixing portion for fixing one end of the wipe medium in the longitudinal direction,
A bobbin moving means for moving the bobbin on the orbit along the outer peripheral surface of the tubular member on the radial outer side of the tubular member.
A centering means for aligning the tubular member and the bobbin moving means
It is characterized by having .

In the tubular member cleaning device of the present disclosure, in the above configuration, it is preferable that the centering means has a screw jack for moving the bobbin moving means in the vertical direction.

In the tubular member cleaning device of the present disclosure, it is preferable that the wiping medium includes a cloth or a sponge in the above configuration.

The tubular member cleaning method of the present disclosure is described.
A method for cleaning a tubular member using the tubular member cleaning device according to any one of the above .
Steps to prepare a bobbin wound with a long wipe, and
The step of fixing one end of the wiping medium in the longitudinal direction and
It is characterized by including a step of moving the bobbin on an orbit along an outer peripheral surface of the tubular member on the radial outer side of the tubular member.

In the above configuration, the tubular member cleaning method of the present disclosure preferably further includes a step of dropping a cleaning liquid onto the wiping medium.

According to the present disclosure, it is possible to provide a tubular member cleaning device capable of effectively removing foreign matter adhering to a tubular member such as a steel pipe, and a tubular member cleaning method.

It is a front view of the tubular member cleaning apparatus (initial state) which concerns on one Embodiment of this disclosure. It is a left side view of the tubular member cleaning apparatus (initial state) which concerns on one Embodiment of this disclosure. It is a top view of the tubular member cleaning apparatus (initial state) which concerns on one Embodiment of this disclosure. It is a block diagram which shows the structure of the control system of the tubular member cleaning apparatus which concerns on one Embodiment of this disclosure. It is a flowchart which shows the implementation procedure of the tubular member cleaning method which concerns on one Embodiment of this disclosure. It is a front view of the tubular member cleaning device (stopper operating state) which concerns on one Embodiment of this disclosure. It is a left side view of the tubular member cleaning device (stopper operating state) which concerns on one Embodiment of this disclosure. It is a top view of the tubular member cleaning apparatus (stopper operating state) which concerns on one Embodiment of this disclosure. It is a front view of the tubular member cleaning apparatus (bobbin moving means operating state) which concerns on one Embodiment of this disclosure.

Hereinafter, the tubular member cleaning device 100 and the tubular member cleaning method according to the embodiment of the present disclosure will be described in detail with reference to FIGS. 1A to 5.

In the present specification, the vertical direction is based on the vertical direction of FIG. 1A, and the side on which the screw jack 14a is arranged is the upper side, and the side on which the stopper fixing members 12a and 12b are arranged is the lower side. Further, the radial outside is a direction toward the outside along a straight line perpendicular to the axis O through the axis O of the ring-shaped member 6 in FIG. 1A, and the radial inside is a direction along the axis O along the straight line. It shall mean the direction to go.

As shown in FIG. 1A, the tubular member cleaning device 100 according to the present embodiment has a bobbin 2 in which a long wiping medium 50 is wound and stored, and a wiping medium for fixing one end of the wiping medium 50 in the longitudinal direction. The fixing portion 4, the bobbin moving means 9 for moving the bobbin 2 on the track T (see FIGS. 1A and 4A) along the outer peripheral surface of the tubular member 70 on the radial outer side of the tubular member 70 (see FIG. 4B, etc.). It includes a stopper 60 that restricts the wiping medium 50 from moving downstream in the moving direction of the tubular member 70, and a centering means 14 that aligns the tubular member 70 with the bobbin moving means 9.

The tubular member 70 to be cleaned in the present embodiment is, for example, a dust, machine oil, scale, etc. on the outer peripheral surface after forming the anticorrosion layer in the manufacturing process of the “polyethylene coated steel pipe” specified in JIS G 3469: 2016. It is a steel pipe to which foreign matter is attached. However, the present invention is not limited to this form, and a steel pipe other than the "polyethylene-coated steel pipe" or another tubular member such as a non-iron tubular member may be used.

In the present embodiment, the wiping medium 50 is a long towel cloth. As will be described later, the wiping medium 50 is wound around the outer peripheral surface of the tubular member 70 while the bobbin 2 is rotated on the track T by the bobbin moving means 9 and a predetermined tension is applied. Therefore, in order to facilitate applying a predetermined tension to the wiping medium 50, it is preferable that the material of the wiping medium 50 has elasticity. Further, as will be described later, the wiping medium 50 wipes off dust and the like on the outer surface of the tubular member 70 in a state where the cleaning liquid is dropped and moistened. Therefore, it is preferable that the wiping medium 50 has a predetermined water absorption.

As shown in FIGS. 1A and 1B, the bobbin 2 has flange portions 2b at both ends in the axial direction of the shaft member 2a, and the wiping medium 50 is wound and stored on the outer peripheral surface of the shaft member 2a. There is. In the present embodiment, the bobbin 2 is made of steel, and when the bobbin 2 rotates (rotates) relative to the ring-shaped member 6 described later by changing the magnetic flux from the permanent magnets arranged close to the shaft member 2a. The rotational resistance of the can be adjusted. As a result, as will be described later, when the ring-shaped member 6 is rotated around the axis O to revolve the bobbin 2, the bobbin 2 does not easily rotate relative to the ring-shaped member 6 so that the tubular member does not rotate. A predetermined tension can be applied to the wiping medium 50 wound around the 70. The tension applied to the wiping medium 50 can be appropriately optimized depending on, for example, the material of the anticorrosion layer.

As shown in FIG. 1A and the like, one end of the wiping medium 50 in the longitudinal direction is fixed to the wiping medium fixing portion 4. In this way, the bobbin 2 revolves along the track T with one end of the wiping medium 50 fixed to the wiping medium fixing portion 4, so that the wiping medium 50 is wiped with a predetermined tension applied in the longitudinal direction. The medium 50 can be wound around the outer peripheral surface of the tubular member 70. In the example of FIG. 1A, the wiping medium fixing portion 4 is fixed to the floor, but may be fixed to the fixed frame 90 or fixed to the movable frame 95.

As shown in FIG. 1A, the bobbin moving means 9 includes a ring-shaped member 6 that can rotate around the axis O, and a rotating means 8 that applies rotational torque to the ring-shaped member 6. The ring-shaped member 6 has a ring-shaped shape centered on the axis O when viewed from the front, and is supported by guide rollers (not shown) at six locations on the outer peripheral portion so as to be rotatable around the axis O. .. The ring-shaped member 6 has a mounting hole for mounting the bobbin 2 in a relative rotatable state at one position in the circumferential direction. The ring-shaped member 6 includes a set of permanent magnets arranged so as to face each other with respect to a disk portion protruding radially outward from the shaft member 2a of the attached bobbin 2. By moving this set of permanent magnets relative to each other, the magnetic flux from the permanent magnets acting on the disk portion can be changed. By changing the magnetic flux, the force that tends to prevent the rotation of the disk portion from the permanent magnet can be changed, so that the rotational resistance of the bobbin 2 with respect to the ring-shaped member 6 can be changed. Therefore, the rotational resistance of the bobbin 2 with respect to the ring-shaped member 6 can be adjusted by controlling the relative position of the permanent magnet.

The rotating means 8 includes a speed change gear 8a and a bobbin revolution motor 8b that mesh with the gear portion 6b formed on the outer peripheral portion of the ring-shaped member 6 (however, the region where the guide roller described above does not abut). The rotational torque from the bobbin revolution motor 8b is transmitted to the gear portion 6b of the ring-shaped member 6 via the transmission gear 8a, so that the ring-shaped member 6 rotates around the axis O.

As the ring-shaped member 6 rotates around the axis O, the bobbin 2 attached to the ring-shaped member 6 has a trajectory T (FIGS. 1A and 4A) along the outer peripheral surface of the tubular member 70 on the radial outer side of the tubular member 70. Etc.) It is possible to move on.

The stopper 60 is a pair of stoppers provided at positions facing each other in the radial direction with respect to the tubular member 70 (the outer peripheral surface when the tubular member 70 is arranged is shown by a broken line) in the non-operating state of the stopper 60 shown in FIG. 1A. A stopper medium 60a bridged between the stopper fixing members 10a and 12a and the stopper fixing members 10a and 12a is provided. As shown in the drawing, the stopper medium 60a hangs downward from the stopper fixing member 10a and is oriented toward the stopper fixing member 12a from an intermediate position, and has a substantially L-shape as a whole. In the non-operating state of the stopper 60 shown in FIG. 1A, the stopper medium 60a is arranged so as not to come into contact with the tubular member 70 even if the tubular member 70 passes through. Similarly, the stopper 60 is also between the other pair of stopper fixing members 10b, 12b provided at positions facing each other radially with respect to the tubular member 70 in the non-operating state of the stopper 60, and the stopper fixing members 10b, 12b. The stopper medium 60b is provided. The stopper fixing members 10b and 12b and the stopper medium 60b are arranged at positions that are line-symmetrical with the above-mentioned stopper fixing members 10a and 12a and the stopper medium 60a in the non-operating state of the stopper 60 shown in FIG. 1A.

The stopper fixing members 10a and 10b arranged above the tubular member 70 virtually shown in FIG. 1A are driven by the air cylinder 10 and can move horizontally along the rail 10c, respectively (cylinder in FIG. 1A). Control air supply port etc. are omitted). As shown in FIGS. 1A to 1C, the stopper fixing member 10a is attached to the rail 10c on the back side of the paper surface of FIG. 1A, and the stopper fixing member 10b is attached to the rail 10c on the front side of the paper surface of FIG. 1A. Has been done. As a result, the stopper fixing members 10a and 10b can move between the movable ranges on the rail 10c without interfering with each other. Both ends of the rail 10c are supported by a pair of rail support members 10d arranged at the left and right ends.

In the present embodiment, the stopper 60 is configured to include two pairs of stopper fixing members 10a, 12a and 10b, 12b, and stopper media 60a, 60b bridged between them, but is limited to this embodiment. Instead, it may be configured to include only a pair of stopper fixing members 10a and 12a and a stopper medium 60a bridged between them. Further, the stopper fixing members 10a and 10b may be driven by, for example, an electromagnetic device other than the air cylinder 10.

The bobbin moving means 9 described so far is arranged on the movable frame 95 shown in FIGS. 1A and 1B. The movable frame 95 is a frame movably supported in the vertical direction with respect to the fixed frame 90 forming the outer frame of the tubular member cleaning device 100, and is fixed to the screw shaft which is a movable portion of the screw jack 14a. .. Then, the rotational torque from the jack motor 14b is transmitted to the screw shaft through a worm reducer or the like, and the movable frame 95 fixed to the screw shaft moves in the vertical direction. In this way, by driving the screw jack 14a, the position of the movable frame 95 and the bobbin moving means 9 mounted on the movable frame 95 can be adjusted in the vertical direction. As a result, the tubular member 70 and the bobbin moving means 9 can be aligned with each other.

The fixed frame 90 and the movable frame 95 can be locked so as not to be relatively movable by rotating the lever 91 shown in FIG. 1B or the like and inserting the lock pin 93 into the movable frame 95.

The tubular member cleaning device 100 can be controlled by, for example, a control system 200 as shown in FIG. The control system 200 includes an electropneumatic (E / P) conversion unit 120 for controlling the air pressure supplied to the air cylinder 10, a current driver 130 for controlling the drive current supplied to the bobbin revolving motor 8b, and a jack motor. It is equipped with a current driver 140 for controlling the drive current supplied to 14b. In FIG. 2, the broken line indicates the path of various control signals.

The control unit 110 transmits a pressure control signal for controlling the air pressure supplied to the air cylinder 10 to the electropneumatic conversion unit 120. The electropneumatic conversion unit 120 adjusts the pressure of the pressurized air supplied from the air source 125 according to the pressure control signal generated by the control unit 110, and supplies the pressure to the air cylinder 10. As a result, the air cylinder 10 outputs a thrust corresponding to the pressure control signal and operates so that the stopper fixing members 10a and 10b are positioned at predetermined positions. The control unit 110 may acquire the position information of the stopper fixing members 10a and 10b and perform feedback control on the electropneumatic conversion unit 120.

The control unit 110 transmits a current control signal for controlling the current supplied to the bobbin revolution motor 8b to the current driver 130. The current driver 130 outputs a drive current corresponding to the current control signal generated by the control unit 110 and supplies the drive current to the bobbin revolution motor 8b. As a result, the bobbin revolution motor 8b operates so as to output a rotational torque corresponding to the drive current to rotate the ring-shaped member 6. The control unit 110 may acquire the rotation angle or the like of the ring-shaped member 6 and perform feedback control on the current driver 130.

The control unit 110 transmits a current control signal for controlling the current supplied to the jack motor 14b to the current driver 140. The current driver 140 outputs a drive current corresponding to the current control signal generated by the control unit 110 and supplies the drive current to the jack motor 14b. As a result, the jack motor 14b operates so as to output a rotational torque corresponding to the drive current to raise and lower the screw jack 14a. The control unit 110 may acquire the vertical position of the ring-shaped member 6 or the like and perform feedback control on the current driver 140.

The control unit 110 can be realized by hardware processing by executing a program on one or more CPUs (Central Processing Units), DSPs (Digital Signal Processors), microcontrollers, etc., or ASIC (Application Specific Integrated Circuit), PLD. It can be realized by hardware processing by (Programmable Logic Device) or FPGA (Field Programmable Gate Array).

Next, a procedure for carrying out the tubular member cleaning method according to the present embodiment will be described with reference to FIG. 3 and the like.

In carrying out the tubular member cleaning method according to the present embodiment, first, in the initial state of the tubular member cleaning device 100 shown in FIGS. 1A to 1C, the operator rotates the lever 91 to move the lock pin 93 to the left. Pull it out (to the left of FIG. 1A). As a result, the lock pin 93 is removed from the movable frame 95, the lock of the movable frame 95 is released (step S101), and the movable frame 95 can be mechanically moved up and down relative to the fixed frame 90. .. The screw jack 14a may be operated by unlocking the movable frame 95 and then unlocking the movable frame 95 to access the operation panel.

Next, based on the operation of the operator, the control unit 110 transmits a current control signal to the current driver 130 to raise and lower the screw jack 14a. Then, the vertical position of the movable frame 95 is adjusted so that the axis O of the ring-shaped member 6 and the axis of the tubular member 70 passing through the inside of the ring-shaped member 6 coincide with each other (step S103). The adjustment of the axial center position can be performed so that, for example, the axial center of the tubular member 70 obtained from the outer shape of the tubular member 70 coincides with the axial center of the trajectory T of the bobbin 2 obtained from the outer shape of the ring-shaped member 6. ..

In the present embodiment, the tubular member 70 is carried by a polyethylene-coated steel pipe production line, and the left-right position of the axial center of the tubular member 70 in FIG. 4A and the left-right position of the axis O of the ring-shaped member 6 Is aligned with the required accuracy in advance. Therefore, although only the vertical positions of both are adjustable here, the present invention is not limited to this aspect. The axis O of the ring-shaped member 6 and the axis of the tubular member 70 may be aligned in two-dimensional directions in the left-right direction and the up-down direction.

Next, the operator prepares the bobbin 2 around which the wiping medium 50 is wound, and attaches the shaft member 2a of the bobbin 2 to the mounting hole formed in the ring-shaped member 6 (step S105). The initial position of the bobbin 2 can be a predetermined position relatively close to the wiping medium fixing portion 4, for example, as shown in FIG. 1A.

Next, the operator fixes one end of the wiping medium 50 wound around the bobbin 2 to the wiping medium fixing portion 4 (step S107). Up to this point, the preliminary preparation before the operation of the tubular member cleaning device 100 is completed.

Next, the operator attaches the stopper media 60a, 60b of the stopper 60 to the stopper fixing members 10a, 10b and 12a, 12b (step S109). As shown in FIG. 1A, the stopper medium 60a is mounted so that the stopper medium 60a hangs downward from the stopper fixing member 10a and is oriented toward the stopper fixing member 12a from an intermediate position, and has a substantially L-shape as a whole. Is doing. In the non-operating state of the stopper 60 shown in FIG. 1A, the stopper medium 60a is arranged so as not to come into contact with the tubular member 70 if the tubular member 70 passes through. Similarly, the stopper 60 is mounted between the other pair of stopper fixing members 10b, 12b provided at positions facing each other in the radial direction with respect to the tubular member 70 in the non-operating state of the stopper 60, and the stopper fixing members 10b, 12b. It is provided with the passed stopper medium 60b. The stopper fixing members 10b and 12b and the stopper medium 60b are arranged at positions that are line-symmetrical with the above-mentioned stopper fixing members 10a and 12a and the stopper medium 60a in the non-operating state of the stopper 60 shown in FIG. 1A.

Next, the operator operates the production line of the tubular member 70 and moves the tubular member 70 to the right in FIG. 4B along the production line (step S111). When the tubular member 70 passes below the stopper fixing members 10a and 10b, the control unit 110 transmits a pressure control signal to the electropneumatic conversion unit 120 and drives the air cylinder 10 to display the stopper fixing members 10a and 10b in FIG. 4A. , Move to the position shown in FIG. 4C. That is, the stopper fixing member 10a moves from the left end to the right end on the rail 10c in front view as shown by an arrow in FIG. 4A, and the stopper fixing member 10b moves from the right end to the left end on the rail 10c. As a result, the stopper medium 60a passes through the left side surface of the tubular member 70 from the stopper fixing member 10a positioned on the upper right side of the movable frame 95 in front view, and the stopper fixing member 12a arranged on the lower right side of the fixed frame 90. In the meantime, it is bridged with a predetermined tension while drawing a substantially U-shape. Similarly, the stopper medium 60b passes from the stopper fixing member 10b positioned on the upper left side of the movable frame 95 to the stopper fixing member 12b arranged on the lower left side of the fixing frame 90 through the right side surface of the tubular member 70. It is bridged with a predetermined tension while drawing a substantially U-shape (step S113). With such a configuration, when the tubular member 70 moves toward the front side of the paper surface of FIG. 4A, the wiping medium 50 wound around the outer peripheral surface of the tubular member 70 does not move too much with the tubular member 70. The movement can be restricted by the stopper media 60a and 60b.

In the present embodiment, the two stopper fixing members 10a and 10b are simultaneously driven by one system of air pressure, but the present invention is not limited to this embodiment. The two stopper fixing members 10a and 10b may be individually driven by the air pressure of different systems. Further, the two stopper fixing members 10a and 10b do not necessarily have to be driven at the same time.

Next, the control unit 110 transmits a current control signal to the current driver 130 to drive the bobbin revolution motor 8b. The bobbin revolution motor 8b generates a rotational torque corresponding to the current supplied from the current driver 130, and rotates the speed change gear 8a to rotate a ring-shaped member 6 having a gear portion 6b that meshes with the speed change gear 8a around the axis O. Rotate drive. As a result, the bobbin 2 rotatably attached to the ring-shaped member 6 moves clockwise on the track T in front view as shown in FIG. 5 (step S115). Note that FIG. 5 shows bobbins 2 located at four locations in the circumferential direction. In this way, the wiping medium 50 is wound around the outer peripheral surface of the tubular member 70 over three turns (step S117). As described above, a permanent magnet is arranged in the vicinity of the shaft member 2a of the bobbin 2, and rotational resistance is generated by the magnetic flux from the permanent magnet. Therefore, when the bobbin 2 revolves with the rotation of the ring-shaped member 6, the wiping medium 50 is unwound from the bobbin 2 and wound around the outer peripheral surface of the tubular member 70 while being pulled by the tension corresponding to the above-mentioned rotational resistance. As a result, the wiping medium 50 is wound around the outer peripheral surface of the tubular member 70 while being tightly adhered to it. Therefore, when the tubular member 70 moves toward the front of the paper surface in FIG. 5 along the line, the wiping medium 50 in close contact with the outer peripheral surface of the tubular member 70 wipes off foreign matter adhering to the tubular member 70 by relative movement with the tubular member 70. Can be (washed). It is preferable to drop the cleaning liquid on the wiping medium 50. Water or the like may be used as the cleaning liquid.

The tension applied to the stopper media 60a and 60b is preferably larger than the tension applied to the wiping medium 50. Thereby, it is possible to effectively limit the movement of the wiping medium 50 to the downstream side with the movement of the tubular member 70.

As described above, the present embodiment is a tubular member cleaning device 100 for cleaning a tubular member 70 that moves in the axial direction, and is a bobbin 2 in which a long wiping medium 50 is wound and stored, and a wipe. It includes a wiping medium fixing portion 4 for fixing one end of the medium 50 in the longitudinal direction, and a bobbin moving means 9 for moving the bobbin 2 on the track T along the outer peripheral surface of the tubular member 70 on the radial outer side of the tubular member 70. It was configured as follows. By adopting such a configuration, foreign matter adhering to the tubular member 70 such as a steel pipe can be effectively removed. In particular, in the present embodiment, it is possible to automate by eliminating the manual wiping of foreign matter by the operator, so that the working time can be shortened.

Further, in the present embodiment, the stopper 60 is further provided on the downstream side in the moving direction of the tubular member 70 with respect to the wiping medium 50, and restricts the wiping medium 50 from moving in the downstream side in the moving direction of the tubular member 70. Configured. By adopting such a configuration, the wiping medium 50 is restricted from moving excessively with the movement of the tubular member 70 to the downstream side, and the wiping medium 50 and its supporting member are suppressed from being damaged. Can be done.

Further, in the present embodiment, the stopper 60 is at least paired with at least a pair of stopper fixing members 10a and 12a (10b and 12b) provided at positions facing each other in the radial direction with respect to the tubular member 70 in the non-operating state of the stopper 60. Has stopper media 60a, 60b bridged between the stopper fixing members 10a and 12a (10b and 12b), and at least one of the stopper fixing members 10a and 12a (10b and 12b) has one stopper fixing member. By moving in a plane orthogonal to the axis of the tubular member 70, the tubular member 70 and the stopper media 60a and 60b come into contact with each other and shift to the operating state of the stopper 60. By adopting such a configuration, the operator can attach the stopper 60 without directly touching the tubular member 70.

Further, in the present embodiment, the tension applied to the stopper media 60a and 60b is configured to be larger than the tension applied to the wiping medium 50. By adopting such a configuration, it is possible to effectively limit the movement of the wiping medium 50 to the downstream side with the movement of the tubular member 70.

Further, in the present embodiment, the bobbin moving means 9 has a ring-shaped member 6 that rotates the radial outside of the tubular member 70 around the axis O, and the bobbin 2 rings at one position in the circumferential direction of the ring-shaped member 6. It is configured so that it can be attached to the shaped member 6 so as to be relatively rotatable. By adopting such a configuration, the wiping medium 50 can be tightly adhered to the tubular member 70 without the operator directly touching the tubular member 70.

Further, in the present embodiment, the alignment means 14 for aligning the tubular member 70 and the bobbin moving means 9 is further provided. By adopting such a configuration, it is possible to suppress the tension fluctuation when the wiping medium 50 is wound around the outer peripheral surface of the tubular member 70, so that the effect of removing foreign matter on the outer peripheral surface of the tubular member 70 can be stabilized.

Further, in the present embodiment, the centering means 14 is configured to have a screw jack 14a for moving the bobbin moving means 9 in the vertical direction. By adopting such a configuration, the bobbin moving means 9 can be accurately positioned in the vertical direction by the screw jack 14a.

Further, in the present embodiment, the wiping medium 50 is configured to include a cloth or a sponge. By adopting such a configuration, the wiping medium 50 can have both elasticity and water absorption, so that an appropriate tension is applied to the wiping medium 50 and a cleaning liquid is impregnated in the wiping medium 50 to remove foreign substances. Can be enhanced.

Further, the present embodiment is a tubular member cleaning method for cleaning a tubular member 70 that moves in the axial direction, in which a step of preparing a bobbin 2 around which a long wiping medium 50 is wound and a step of preparing the wiping medium 50 are provided. The bobbin 2 is configured to include a step of fixing one end in the longitudinal direction and a step of moving the bobbin 2 on the track T along the outer peripheral surface of the tubular member 70 on the radial outer side of the tubular member 70. By adopting such a configuration, foreign matter adhering to the tubular member 70 such as a steel pipe can be effectively removed. In particular, in the present embodiment, it is possible to automate by eliminating the manual wiping of foreign matter by the operator, so that the working time can be shortened.

Further, in the present embodiment, the step of dropping the cleaning liquid onto the wiping medium 50 is further included. By adopting such a configuration, the wiping medium 50 can be always kept moist with the cleaning liquid and the cleaning effect can be enhanced.

Although the present disclosure has been described based on the drawings and examples, it should be noted that those skilled in the art can easily make various modifications and corrections based on the present disclosure. Therefore, it should be noted that these modifications and modifications are included in the scope of the present invention. For example, the functions included in each component can be rearranged so as not to be logically inconsistent, and a plurality of components can be combined or divided into one. It should be understood that these are also included in the scope of the present invention.

For example, in the present embodiment, the wiping medium 50 is configured to include a stopper 60 that limits the movement of the tubular member 70 to the downstream side in the moving direction, but the present invention is not limited to this embodiment, and the stopper 60 is not provided. May be.

Further, in the present embodiment, the stopper 60 is a stopper medium 60a bridged between two pairs of stopper fixing members 10a, 12a and 10b, 12b and a pair of stopper fixing members 10a, 12a (10b, 12b). (60b), and one of the stopper fixing members 10a (10b) moves horizontally in a plane orthogonal to the axis of the tubular member 70, so that the tubular member 70 and the stopper medium 60a (60b) are in close contact with each other. It is configured to shift to the operating state of the stopper 60 by (contacting), but the present invention is not limited to this aspect. For example, one of the stopper fixing members 10a (10b) is configured to move in the vertical direction in a plane orthogonal to the axis of the tubular member 70 so that the tubular member 70 and the stopper medium 60a (60b) are in close contact with each other. May be good. Further, the stopper 60 does not necessarily have to have two pairs of stopper fixing members 10a, 12a and 10b, 12b, but may have at least a pair of stopper fixing members 10a, 12a (10b, 12b). ..

Further, in the present embodiment, the tension applied to the stopper media 60a and 60b is configured to be larger than the tension applied to the wiping medium 50, but the present invention is not limited to this aspect, and the magnitude relation of each tension is opposite. You may.

Further, in the present embodiment, the bobbin moving means 9 is configured to have the ring-shaped member 6, but the present invention is not limited to this embodiment, and other means capable of moving the bobbin 2 along the outer peripheral surface of the tubular member 70. May be used. Further, the driving means of the ring-shaped member 6 may be, for example, a pneumatic device, a hydraulic device, or the like other than the electromagnetic motor.

Further, in the present embodiment, the alignment means 14 for aligning the tubular member 70 and the bobbin moving means 9 is provided, but the present invention is not limited to this embodiment, and the alignment means 14 is not provided. May be good. Further, the centering means 14 may include a feeding mechanism other than the screw jack 14a.

Further, in the present embodiment, the cloth of the towel cloth is used as the material of the wiping medium 50, but the present invention is not limited to this embodiment. The material of the wiping medium 50 may be a cloth other than the towel cloth, a sponge, or the like.

2 Bobbin 2a Shaft material 2b Flange part 4 Wiping medium fixing part 6 Ring-shaped member 6b Gear part 8 Rotating means 8a Speed change gear 8b Bobbin revolving motor 9 Bobbin moving means 10 Air cylinder 10a, 10b Stopper fixing member 10c Rail 10d Rail support member 12a , 12b Stopper fixing member 14 Centering means 14a Screw jack 14b Jack motor 50 Wiping medium 60 Stopper 60a, 60b Stopper medium 70 Tubular member 90 Fixed frame 91 Moving lever 93 Lock pin 95 Movable frame 100 Tubular member cleaning device 110 Control unit 120 Electric current Empty converter 125 Air source 130 Current driver 140 Current driver 200 Control system O axis

Claims (9)

A tubular member cleaning device that cleans tubular members that move in the axial direction.
A bobbin around which a long wipe medium is wound and stored,
A wipe medium fixing portion for fixing one end of the wipe medium in the longitudinal direction,
A bobbin moving means for moving the bobbin on the orbit along the outer peripheral surface of the tubular member on the radial outer side of the tubular member .
A stopper provided on the downstream side in the moving direction of the tubular member with respect to the wiping medium and limiting the movement of the wiping medium to the downstream side in the moving direction of the tubular member.
A tubular member cleaning device comprising. The stopper includes at least a pair of stopper fixing members provided at positions facing each other in the radial direction with respect to the tubular member in a non-operating state of the stopper, and a stopper medium spanned between the at least pair of stopper fixing members. When one of the stopper fixing members of the at least one pair of stopper fixing members moves in a plane orthogonal to the axis of the tubular member, the tubular member and the stopper medium come into contact with each other to bring the stopper into an operating state. The tubular member cleaning device according to claim 1 , wherein the tubular member cleaning device shifts to. The tubular member cleaning device according to claim 2 , wherein the tension applied to the stopper medium is larger than the tension applied to the wiping medium. A tubular member cleaning device that cleans tubular members that move in the axial direction.
A bobbin around which a long wipe medium is wound and stored,
A wipe medium fixing portion for fixing one end of the wipe medium in the longitudinal direction,
With the bobbin moving means for moving the bobbin on the orbit along the outer peripheral surface of the tubular member on the radial outer side of the tubular member.
Equipped with
The bobbin moving means has a ring-shaped member that rotates radially outside the tubular member about an axis, and the bobbin can rotate relative to the ring-shaped member at one position in the circumferential direction of the ring-shaped member. A tubular member cleaning device characterized by being attached to. A tubular member cleaning device that cleans tubular members that move in the axial direction.
A bobbin around which a long wipe medium is wound and stored,
A wipe medium fixing portion for fixing one end of the wipe medium in the longitudinal direction,
A bobbin moving means for moving the bobbin on the orbit along the outer peripheral surface of the tubular member on the radial outer side of the tubular member.
A centering means for aligning the tubular member and the bobbin moving means
A tubular member cleaning device comprising . The tubular member cleaning device according to claim 5 , wherein the centering means has a screw jack for moving the bobbin moving means in the vertical direction. The tubular member cleaning device according to any one of claims 1 to 6 , wherein the wiping medium includes a cloth or a sponge. A method for cleaning a tubular member using the tubular member cleaning device according to any one of claims 1 to 7 .
Steps to prepare a bobbin wound with a long wipe, and
The step of fixing one end of the wiping medium in the longitudinal direction and
A method for cleaning a tubular member, which comprises a step of moving the bobbin on an orbit along an outer peripheral surface of the tubular member on the radial outer side of the tubular member. The tubular member cleaning method according to claim 8 , further comprising a step of dropping a cleaning liquid onto the wiping medium.

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