JP2001269897A - Coating material removing device for coated pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove a coating material quickly, sufficiently, stably, and satisfactorily in a normal temperature state and secure good workability at a low cost. SOLUTION: This coating material removing device is provided with a moving mechanism part 2 moving a coated pipe P in the pipe longitudinal direction X, a notching mechanism part 3 applying a plurality of cutouts Cs in the pipe longitudinal direction X of the coating material Po by putting a plurality of cutout cutters 3a, 3b, etc., to the moving coated pipe P, and a peeling mechanism part 4 peeling the coating material Po from a pipe body Pm by putting cylindrical peeling cutters 4a, 4b, etc., having the inner diameter nearly matched with the inner diameter of the coating material Po to the moving covered pipe P provided with the cutouts Cs.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating material removing apparatus suitable for use in removing a coating material from a pipe base of a coating pipe such as a gas pipe or a water pipe.

[0002]

2. Description of the Related Art In general, a gas pipe using a steel pipe is coated with a coating material such as polyethylene or vinyl chloride on an outer peripheral surface of the steel pipe (pipe base) in order to prevent rust or the like and increase durability. Often, coated tubes are used. On the other hand, when laying gas pipes, a large amount of waste material (cut pieces) that becomes industrial waste is generated. In the case of clad pipes, by removing the cladding material from the steel pipes, the cladding material and the steel pipes are separately re-used. It is desirable to use it as a resource material.

[0003] In the case of a cladding tube, it is not easy to remove the cladding material because the cladding material is firmly adhered to the outer peripheral surface of the steel pipe, and various methods for removing the cladding material have been conventionally proposed. Have been. Concretely, a low-temperature crushing method in which the entire cladding tube is brittlely crushed by cooling the cladding tube at a low temperature, a low-temperature exfoliation method in which the cladding tube is cooled at a low temperature and only the coating material is crushed, A room-temperature crushing method, a melt peeling method in which a coating material is melted and peeled by heating in a steam atmosphere, a combustion method in which a coating material is burned, and the like are known.

[0004] However, such a conventional method requires large equipment costs and variable costs (low-temperature crushing method). The coating material and the tube body cannot be sufficiently peeled (low temperature peeling method). The coating material easily ignites due to heat generation (normal temperature crushing method). A problem of waste gas treatment occurs (melt peeling method). The coating material cannot be reused (combustion method). In fact, none of them have been put into practical use.

The present invention has been made to solve the problems existing in the prior art and removes the coating material promptly and sufficiently at room temperature, and removes the coating material stably and satisfactorily. It is an object of the present invention to provide a coating tube removing device capable of ensuring good workability.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a cladding tube removing apparatus 1 for removing a cladding material Po from a tube base Pm of a cladding tube P such as a gas pipe or a water pipe. A moving mechanism 2 for moving the cladding tube P in the tube longitudinal direction X and a plurality of cuts Cs in the tube longitudinal direction X of the coating material Po by applying a plurality of cutting cutters 3a to the moving cladding tube P. The coating material is provided by applying a cylindrical peeling cutter 4x having an inner diameter substantially matching the inner diameter of the coating material Po to the cutting mechanism portion 3 provided with the coating material P and the coating tube P provided with the moving cuts Cs. And a peeling mechanism 4 for peeling Po from the tube body Pm.

In this case, according to a preferred embodiment, the moving mechanism section 2 includes a driving mechanism section 11 for pushing and moving the cladding tube P in the tube longitudinal direction X, and a guide for supporting and guiding the cladding tube P in a certain direction. The guide mechanism unit 12 can be configured to include the mechanism unit 12, and can also be configured to include the guide position adjustment mechanism unit 13 that changes the support position corresponding to the diameter of the cladding tube P. The driving mechanism 11 includes a pressing body 31 that presses the rear end of the cladding tube P, and the pressing body 3
Reference numeral 1 denotes a plurality of escape grooves 3 formed in a conical shape at the tip and formed on the outer peripheral surface along an axial direction for avoiding contact with the cutting cutters 3a.
.. Is provided. In addition, the cutting mechanism unit 3 can include a cutter position adjusting mechanism unit 14 that changes the position of the cutting cutters 3a... Corresponding to the diameter of the cladding tube P. Cutting cutter 3a
, And a plurality of interlocking mechanisms 16a for interlocking the engaging portions 15a and the cutting cutters 3a with each other. It can be provided and configured. Furthermore, the peeling mechanism unit 4 can be configured to include a cutter changing mechanism unit 17 that changes the peeling cutters 4x... Corresponding to the diameter of the cladding tube P, and the cutter changing mechanism unit 17 can use different peeling cutters 4x. , And a plurality of attachments 18x... The attachments 18x are provided with stoppers 19a for regulating the positions of the cutting cutters 3a.

Thus, the cladding tube P is moved by the moving mechanism 2.
Is moved in the pipe longitudinal direction X, first, a plurality of cutting cutters 3 provided in the cutting mechanism 3 for the moving cladding pipe P.
.., and a plurality of cuts Cs... are provided in the pipe longitudinal direction X of the coating material Po. Next, the cylindrical peeling cutters 4x provided in the peeling mechanism unit 4 hit the cladding tube P,
The coating material Po is peeled off from the pipe body Pm. In this case, since the coating material Po to be peeled is provided with a plurality of cuts Cs in advance, the plurality of divided coating materials P divided in the circumferential direction are provided.
op ...

[0009]

Next, preferred embodiments according to the present invention will be described in detail with reference to the drawings.

First, the structure of a cladding tube removing apparatus 1 according to the present embodiment will be described with reference to FIGS.

The cladding tube coating material removing apparatus 1 has a base 21, on which a moving mechanism 2 for moving the cladding tube P in the pipe longitudinal direction X is provided. Further includes a drive mechanism 11 for moving the cladding tube P by pushing in the tube longitudinal direction X, and a guide mechanism 12 for supporting the cladding tube P and guiding it in a certain direction.

The drive mechanism section 11 includes a rotary drive section 22 including an electric motor and a speed reduction mechanism disposed on one end side in the longitudinal direction of the base 21, and a first support plate 23 raised on one end side on the upper surface of the base 21. And a second support plate 24 erected on the other end side of the upper surface of the base 21
A ball screw mechanism 25 is provided between the ball screw mechanism 25 and a rotation transmission mechanism 26 using a pulley and an endless belt for transmitting the rotation output of the rotation drive unit 22 to the ball screw mechanism 25. The ball screw mechanism 25 includes a ball screw portion 25s and a nut portion 25.
The push block 27 is provided integrally with the nut portion 25n. In addition, a pair of left and right guide shafts 29 and 30 arranged in parallel as shown in FIG. 7 is provided between the third support plate 28 and the first support plate 23 which are provided in front of the second support plate 24. The push block 27 is slidably mounted on the shafts 29 and 30. Further, at the center of the push block 27, a rod-shaped push body 31 is provided so as to protrude toward the second support board 24 side. In this case, the distal end of the pressing body portion 31 is formed in a conical shape, and a plurality of slit-shaped escape grooves 31s (four in the axial direction) are formed on the outer peripheral surface as shown in FIGS. ) Provide. It is to be noted that the relief grooves 31s are formed in the pressing body 3
This is to prevent cutting cutters 3a, which will be described later, from contacting the pressing body portion 31 when 1 has moved to the most advanced position. Therefore, the pressing body portion 31 is engaged with the end of the cladding tubes P, and even if the cladding tubes P have different diameters, the cladding tubes P are positioned (centered) at the center.

On the other hand, the guide mechanism section 12 includes a pair of left and right support plates 33 and 34 shown in FIG. 7, and each of the support plates 33 and 34 is a pair of front and rear linear guide mechanisms 35 and It is slidably supported in the left-right direction via 36. A plurality of support blocks 37, 38,... Are arranged on the upper surface of each support plate 33, 34. In this case, as shown in FIG. 9, the support blocks 37 provided on the support plate 33 have inclined surfaces 37s on the side facing the support plate 34, and the support blocks 38 provided on the support plate 34. Have inclined surfaces 38 s... On the side facing the support plate 33. Therefore, as shown in FIG. 9, when viewed from the front (the longitudinal direction of the tube), a V-plane is formed by a combination of the inclined surfaces 37s and 38s, and the V-surface supports the cladding tube P. .

Further, the guide mechanism 12 includes a guide position adjusting mechanism 13 for changing the position for supporting the cladding tube P in accordance with the diameter of the cladding tube P. The guide position adjusting mechanism 13 includes a threaded rod 40 arranged in the left-right direction and rotated by an operation handle 39, and a nut 41 fixed to the lower surface of the support plate 33 and a nut 42 fixed to the lower surface of the support plate 34. Are screwed into the screw rod portions 40, respectively. In this case, a reverse thread is formed in one half of the screw rod portion 40 to which the one nut portion 41 is screwed and the other half of the screw rod portion 40 to which the other nut portion 42 is screwed. When the screw rod 40 is rotated, the support plates 33 and 34 are respectively displaced symmetrically. The operation handle 39 may be driven by a servo motor or the like so as to be automatically set at a position corresponding to the cladding tubes P.

The guide mechanism 12 further includes a pressing body 3
A release mechanism 45 is provided to allow each of the support blocks 37..., 38. As shown in FIGS. 6 and 7, the release mechanism 45 is rotatably mounted on the lower surface of the push block 27 and includes a pair of left and right operation arms 46 and 47 protruding toward the second support board 24. The operation arms 46 and 47 are provided with an operation unit 46 standing upright at the distal end.
s, 47s, and a spring 48
Thereby, the operation units 46s and 47s are urged to spread at a certain angle. On the other hand, the operation portions 46 s and 47
When s comes into contact, inclined guide surfaces 33s and 34s are formed to guide the operation portions 46s and 47s to the opposing sides of the support plates 33 and 34 (see FIG. 8). Also,
As shown in FIG. 8, one support block 37 is formed on the support plate 33 via a support shaft 49 such that a portion formed with an inclined surface 37s projects from the support plate 33 so as to have an L shape in plan view. In addition to being rotatably mounted, the rotation range is regulated by a position regulation part (not shown) so as to be displaceable between a set position Ss indicated by a solid line and a release position Sr indicated by a virtual line rotated 90 ° from the set position Ss. I do. Further, a spring 50 is provided between the support block 37 and the support plate 33, and the support block 37 is set at the set position S.
It is configured so that it can be buckled between s and the release position Sr. The other support blocks 37 are configured in the same manner, and the support blocks 38 arranged on the other side are similarly configured except that they are provided symmetrically.

On the other hand, the other side of the base 21 has the moving mechanism 2
Is provided with a plurality of cuts Cs... In the pipe longitudinal direction X of the coating material Po by applying a plurality of cutting cutters 3a. As shown in FIGS. 1 to 3, the cutting mechanism 3 includes four guide blocks 52 a and 52 fixed to the second support board 24.
, 52c..., and the shafts 53a, 53b, 53c, 53d are slidably supported by the respective guide blocks 52a. In this case, an aperture block 54 having an aperture 54o through which the pipe body Pm passes is attached to the second support board 24, and each of the guide blocks 52a.
Are arranged at regular intervals in the circumferential direction around the opening 54o, and the shafts 53a are guided in the radial direction. Note that a part of the aperture block 54 is a part of the second support plate 2.
4 project outward (opposite to the first support plate 23) and serve as positioning projections 54s for centering the attachments 18x described later.

A split groove is formed at the tip of each shaft 53a, and circular cutting cutters 3a, 3b, 3c, 3d are rotatably mounted, and each of the guide blocks 52a.
Are connected to both ends of shafts 53a projecting from the support brackets 55a, 55b, 55c. The copying rollers 56a, 56b, 56c (the engaging portions 15a, 15b) are provided at predetermined positions of the support brackets 55a located in front of the cutting cutters 3a.
…) Is attached rotatably. The positional relationship between the copying rollers 56a and the cutting cutters 3a is such that when the copying rollers 56a contact the outer peripheral surface of the cladding tube P, the cutting cutters 3a provide the cuts Cs in the coating material Po. Select a possible positional relationship. In this case, the support brackets 55a may be rigid or may be configured (formed) with elasticity.
In the case of rigidity, cut Cs regardless of the type of cladding tube P
.. Become constant, it is sufficient to adjust the thickness to the thinnest coating material Po. At this time, in the case of the thick covering material Po, it is not possible to provide complete cuts Cs ... in the covering material Po.
Since the portion provided with the cuts Cs is easily broken, no practical problem occurs. On the other hand, when elasticity is imparted, the cutting cutters 3a are restricted in position by stoppers 19a to be described later, so that the depth of the cuttings Cs is accurately set according to the type of the cladding tube P. it can. Therefore, in this case, it is not necessary to set the positional relationship between the cutting cutters 3a and the copying rollers 56a strictly. Further, as shown in FIG. 2, springs 57 are provided between the guide blocks 52a and the shafts 53a to bias the cutting cutters 3a in the center direction. With the above configuration, the copying roller 5
6a... And the cutting cutters 3a.
The cutter position adjusting mechanism 14 is configured such that the positions of the cutting cutters 3a are changed corresponding to the diameter of the cladding tube P.

On the other hand, outside the cutting mechanism 3, a cutting Cs
The peeling mechanism 4 for peeling the coating material Po from the pipe body Pm is provided by applying a cylindrical peeling cutter 4x having an inner diameter substantially matching the inner diameter of the coating material Po to the coating pipe P provided with. I do. The peeling mechanism 4 includes a cutter changing mechanism 17 that changes the peeling cutters 4x, 4y,... In accordance with the diameter of the cladding tube P. The cutter changing mechanism 17 includes a plurality of detachable attachments 18x, 18y... Having different peeling cutters 4x. In this case, on the outer surface of the second support plate 24, four L-shaped engaging portions 61a, 61b, 61c for attaching the attachments 18x.
61d is provided. In addition, one attachment 18x
Has a base plate 62 having locked portions 62a, 62b, 62c, 62d protruding in a cross shape in four directions, as shown in FIGS. 4 and 5, and each locked portion 62a. And can be locked. At the center of the base plate 62, the positioning protrusion 54s
A supporting member 63 is mounted on the surface of the base plate 62, and the cylindrical peeling cutter 4x is supported by the supporting member 63. The peeling cutter 4x has a circular blade along the entire periphery of the tip, and has a flange 4xf for attaching to the support member 63 on the outer peripheral surface. Further, each locked portion 62
The stoppers 19a, 19b, 19c,
Install 19d. The stoppers 19a project in a direction (horizontal direction) perpendicular to the base plate 62, and when the stoppers 19a are mounted on the second support board 24, the shafts 53a.
, The displacement of the shafts 53a, that is, the position of the cutting cutters 3a in the radial direction is regulated. A plurality of such attachments 18x are prepared corresponding to different cladding tubes P. In this case, the attachments 18x are different from each other in the diameter of the peeling cutters 4x used in correspondence with the diameter of the cladding tubes P and in the position where the stoppers 19a are mounted. FIG. 5 shows an attachment 18y used for a cladding tube P having a smaller diameter than the cladding tube P using the attachment 18x. The attachment 18y includes a peeling cutter 4y having a smaller diameter than the peeling cutter 4x and a stopper 19ay having a different position. , 19by...

In addition, the coating tube removing device 1 includes
Various peripheral devices can be attached as needed. FIG.
Indicates an automatic supply device 71. The automatic supply device 71 includes a stocker 72 for accommodating a large number of cladding tubes P, a driving cylinder 73 for raising and lowering a lifter 74, and a single cladding tube P pushed up by the lifter 74 for supporting blocks 37,.
And a lifter position adjusting mechanism 76 for changing the position of the lifter 74 in accordance with the diameter of the cladding tubes P.

Next, the method of use and operation (function) of the cladding tube coating material removing apparatus 1 according to this embodiment will be described with reference to the drawings.

First, the attachments 18x corresponding to the cladding tubes P are selected and mounted. In this case, as shown in FIG. 4, the attachment 18x is fitted to the positioning projection 54s with the positioning hole 62o at a position indicated by a virtual line with respect to the outer surface of the second support board 24, and then the attachment 1
By turning 8x, each locked portion 62a.
1a... The solid line in FIG. 4 and FIG. 1 show a state in which the attachment 18x is mounted. Therefore,
When the attachments 18y are replaced, the attachments 18y can be easily replaced by detaching them in the reverse order.

By operating the operation handle 39, the position for supporting the cladding tube P is changed corresponding to the diameter of the cladding tube P. In this case, the support plates 33 and 34 are separated or approached by the operation of the operation handle 39. Therefore, when the diameter of the cladding tube P is large, the support plates 33 and 34 are separated from each other, and when the diameter of the cladding tube P is small. By bringing the support plates 33 and 34 closer together,
Adjust so that the centers of the cladding tubes P to be supported are the same. In addition, since the centering of the coating pipes P is finally performed by the cutting cutters 3a, the adjustment in this case does not always need to be strictly performed.

During operation, the following operation is performed. First, in the automatic supply device 71, the drive cylinder 7
3 to raise the lifter 74 from the lowered position,
One cladding tube P rests on the lifter 74 and the stocker 72
, And is supplied to the support blocks 37,.

When the cladding tube P is normally set on the support blocks 37,..., 38, it is detected by a sensor (not shown), and the rotation drive unit 22 is operated. The rotation output of the rotation drive unit 22 is transmitted to the ball screw mechanism 25 via the rotation transmission unit 26.
And the ball screw portion 25s rotates. As a result, the nut block 25n moves forward, so that the push block 27 moves forward from the standby home position while being guided by the guide shafts 29 and 30. Thereby, as shown in FIG. 7, the front-end | tip of the pushing body part 31 contacts the rear end of the cladding tube P, and moves the cladding tube P forward.

During the forward movement of the cladding tube P, as shown in FIG.
.. Are released and the push body 31 is allowed to move forward. That is, when the operation section 46s (same for 47s) moves forward, the support block 37 at the set position Ss is pushed by the operation section 46s, and when pushed to a certain position, the support block 37 is seated by the spring 50. It pivots flexibly and is displaced to a release position Sr indicated by a virtual line. This allows the push body 31 to move forward because it escapes in the direction in which the portion where the inclined surface 37s is formed expands. On the other hand, the operation unit 4
When 6s moves backward (returns), the support block 37 indicated by the virtual line is pushed in the opposite direction, and the set position S indicated by the solid line is set.
Return to s.

Further, when the cladding tube P reaches the copying rollers 56a, the copying rollers 56a are expanded in the radial direction and roll along the outer peripheral surface of the coating tube P.
Since the copying rollers 56a are in a position where they can engage with the cladding tube P having the smallest diameter in a natural state, even if the coating tube P having the largest diameter enters, the copying rollers 56a.
Are displaced radially. On the other hand, the interlocking mechanism 16
a along with the copying rollers 56a.
are also displaced, and the cutting cutters 3a are stoppers 19a.
The position is regulated (positioned) by. By the forward movement of the cladding tube P, the cladding material Po is cut by the cutting cutters 3a, and four cuts Cs along the tube longitudinal direction X.
... are provided.

When the tip of the cladding tube P reaches the peeling cutter 4x, as shown in FIG. 1, the cladding tube P is hit by the cylindrical peeling cutter 4x, and the cladding material Po is peeled off from the tube base Pm. . In this case, since the coating material Po to be peeled is provided with four cuts Cs..., The divided coating materials Pop divided into four in the circumferential direction are peeled from the pipe base Pm.
Then, at this time, the pushing body portion 31 is completely peeled off to the final end by the forward movement, and the peeled pipe body Pm is pushed out from the peeling cutter 4x. On the other hand, when the above steps are completed, the rotation drive unit 22 is operated in the reverse direction, and the push block 27 is returned to the home position. In this case,
As described above, each of the support blocks 37,... Returns to the set position Ss. Thereafter, the same operation is repeated.

As described above, according to the cladding tube removing apparatus 1 according to the present embodiment, the covering material Po can be quickly and sufficiently removed by the combination of the cutting mechanism 3 and the peeling mechanism 4. It can be removed stably and satisfactorily. In addition, since it can be carried out at room temperature, low cost and good workability can be secured.

The embodiment has been described in detail above.
The present invention is not limited to such an embodiment,
The configuration, shape, material, quantity, etc. of the details can be arbitrarily changed, added, or deleted without departing from the gist of the present invention.

For example, in the present invention, moving the cladding tube P means relative movement. The cladding tube P may be moved as in the embodiment, or the cladding tube P may be fixed and the cutting cutter 3a may be fixed. .. May be moved with respect to the cladding tube P. Also, the attachment and detachment of the attachments 18x... Has been shown manually, but the diameter of the cladding tube P is automatically detected by a sensor, and a plurality of attachments 18x.
, The corresponding attachment (peeling cutter 4x ...) may be automatically set, and the coating tube coating material removing apparatus 1 according to the present invention can be fully automated.

[0031]

As described above, in the cladding tube removing apparatus according to the present invention, the moving mechanism for moving the cladding tube in the longitudinal direction of the cladding tube and the plurality of cutting cutters are applied to the moving cladding tube. A cutting mechanism for providing a plurality of cuts in the tube longitudinal direction of the coating material, and a cylindrical peeling cutter having an inner diameter substantially matching the inner diameter of the coating material is applied to the coating tube provided with the moving cut. In this case, the coating material is provided with a peeling mechanism for peeling the coating material from the pipe body, so that the following remarkable effects can be obtained.

(1) By the combination of the cutting mechanism and the peeling mechanism, the coating material can be quickly and sufficiently removed, and can be removed stably and satisfactorily.

(2) Since it can be carried out at normal temperature, low cost and good workability can be secured.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view showing a cutting mechanism and a peeling mechanism of a cladding tube removing apparatus according to a preferred embodiment of the present invention.

FIG. 2 is a rear view showing a part of a cutting mechanism of the cladding tube coating material removing apparatus.

FIG. 3 is a rear view showing a cutting cutter in a cutting mechanism of the cladding tube coating material removing apparatus.

FIG. 4 is a front view of a peeling mechanism of the cladding tube coating material removing apparatus.

FIG. 5 is a partial cross-sectional side view of an attachment in a peeling mechanism of the cladding tube coating material removing apparatus.

FIG. 6 is a side view showing the overall configuration of the cladding tube coating material removing apparatus.

FIG. 7 is a plan view showing a part of the cladding tube coating material removing apparatus.

FIG. 8 is a front view showing one support block extracted and shown in the guide mechanism of the cladding tube coating material removing apparatus.

FIG. 9 is a front view showing a partial configuration of a guide mechanism of the coating tube coating material removing device and a principle configuration of an automatic supply device;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Coating tube coating material removal apparatus 2 Moving mechanism part 3 Cutting mechanism part 3a ... Cutting cutter 4 Peeling mechanism part 4x ... Peeling cutter 11 Drive mechanism part 12 Guide mechanism part 13 Guide position adjustment mechanism part 14 Cutter position adjustment mechanism part 15a ... Engaging part 16a ... Interlocking mechanism part 17 Cutter changing mechanism part 18x ... Attachment 19a ... Stopper 31 Press body part 31s ... Relief groove P Coated pipe Po Coating material Pm Pipe base Cs ... Cut X Pipe longitudinal direction

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) B29B 17/02 B09B 5/00 ZABM F-term (Reference) 3C027 NN04 NN05 4D004 AA07 AA21 BA05 BA07 CA02 CA04 CA12 CB12 4F301 AA13 AA17 BA02 BA13 BA15 BA29 BE31 BF04 BF11 BF31

Claims (10)

[Claims] 1. A cladding tube removing apparatus for removing a cladding material from a cladding tube base, comprising: a moving mechanism for moving the cladding tube in a longitudinal direction of the cladding tube; A cutting mechanism for providing a plurality of cuts in the pipe longitudinal direction of the coating material by applying a cutting cutter, and an inner diameter substantially matching the inner diameter of the coating material with respect to the coating pipe provided with the moving cut. And a peeling mechanism for peeling off the coating material from the tube base by applying a cylindrical peeling cutter having the same. 2. The apparatus according to claim 1, wherein the moving mechanism comprises: a driving mechanism for moving the cladding tube by pressing the cladding tube in the longitudinal direction; and a guide mechanism for supporting the cladding tube and guiding the cladding tube in a predetermined direction. The cladding material removing device according to claim 1. 3. The drive mechanism includes a pressing body that presses a rear end of the cladding tube. The pressing body has a conical tip, and has an outer peripheral surface formed with the cutting cutter. The coating material removing apparatus for a cladding tube according to claim 2, wherein a plurality of escape grooves are provided along an axial direction to avoid contact with the cladding. 4. The apparatus according to claim 2, wherein the guide mechanism includes a guide position adjusting mechanism for changing a supporting position corresponding to a diameter of the cladding tube. 5. The coating for a cladding tube according to claim 1, wherein the cutting mechanism includes a cutter position adjusting mechanism for changing a position of the cutting cutter in accordance with a diameter of the cladding tube. Material removal device. 6. A plurality of engaging portions provided in correspondence with the cutting cutter and engaged with an outer peripheral surface of the cladding tube, the cutter position adjusting mechanism, and the engaging portion and the cutting cutter. The coating material removing apparatus for a cladding tube according to claim 5, further comprising a plurality of interlocking mechanism units that interlock with each other. 7. The apparatus according to claim 1, wherein the peeling mechanism comprises a cutter changing mechanism for changing the peeling cutter in accordance with a diameter of the cladding tube. 8. The apparatus according to claim 7, wherein the cutter changing mechanism includes a plurality of detachable attachments having different peeling cutters. 9. The coating tube removing apparatus according to claim 8, wherein the attachment includes a stopper that regulates a position of the cutting cutter. 10. The coating tube removing apparatus according to claim 1, wherein the coating tube is formed by coating an outer surface of a pipe such as a gas pipe or a water pipe.