JPH10109202A - Coated layer peeling device for outside coated pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To peel off the coated layers of a plurality of coated popes having different pipe diameters by providing a peeling tool holding member which can respond to a plurality of outside coated pipes having different pipe diameters by one peeling tool holding member. SOLUTION: A peeling tool holding member 21 has a cylindrical part 21a having an opening on a side and a tool holding part having a bottom part 21b connected to the opening and both side walls 21c, 21d, these parts being integrally formed. A tool support base 22 is fixed to the bottom part 21b and a ratchet plate is fixed to the wall 21c and a slit 31 in which a ratchet claw 24 mounted to the tool support base 22 can be moved is formed on the other side wall 21d. The ratchet plate 23 has a plurality of saw-toothed ratchet claws 23a and is fixed to one side wall 21c. The tool support base 22 is fixed to a peeling tool holding member 21 and a tool part 25 is fixed thereto by a bolt 50 and a cutting member 44 having a cutting edge 43 is fixed to the tool part 25 and the difference between its guide 42 and a ball member 47 equals to the thickness of a coated layer to be peeled off.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for peeling a coating layer of an outer coating tube. More specifically, the present invention relates to a peeling device used for peeling a coating layer of an outer cladding tube coated with plastic used for a gas pipe or a water pipe.

[0002]

2. Description of the Related Art Conventionally, plastic lining steel pipes in which the inner circumference or outer circumference of a pipe is lined with a plastic such as polyethylene for corrosion protection are often used for gas pipes and water pipes. When connecting such plastic-lined steel pipes, welding or mechanical joints are used,
In that case, it is necessary to remove the lining in order to increase durability and strength.

FIG. 9 is a view showing a conventional apparatus for peeling a coating layer of an outer coating tube. As shown in FIG. 9, the outer coating tube 3 is mounted on a rotating shaft provided horizontally on a head portion 2 of a frame 1. Is attached, and the chuck 4 is rotatably driven by a motor provided in the frame 1 while the outer cladding tube 3 is held.

Further, the frame 1 is provided with two horizontal and parallel guide shafts 5 and 5 ′, and the guide shafts 5 and 5 ′ are provided with a shaving head 6. Is reciprocated. A plurality of shaving tools 8 are arranged on the shaving head 6 so as to be slidable radially, and the eccentric handle 9 can change the cutting radius.

[0005] To remove the coating of the outer cladding tube 3,
After setting the shaving tool 8 to a position where the coating layer of the outer coating tube 3 can be cut by the eccentric handle 9, the shaving head 6 is moved in the direction of arrow A by the feed handle 7 while rotating the chuck 4 and the outer coating tube 3. Thus, the coating layer can be cut and removed by the shaving tool 8.

In the above-mentioned conventional apparatus for peeling the coating layer of the outer coating tube, the shaving head 6, the two guide shafts 5,
5 ', a feed handle 7 for moving the shaving head is required, and a rack for moving the shaving head needs to be processed into a guide shaft, and the number of parts is large.
There are also problems such as heavy weight and high cost.

For this reason, the present inventors have proposed an apparatus for peeling a coating layer of an outer coating tube as shown in FIG. (Japanese Patent Application No. 6-285162) This device has a telescopic part 11 as shown in FIG.
A handle member 13 swingably provided on a shaft 12 implanted in the handle member 13; and a guide rail 14 for guiding a central portion of the handle member 13 to move linearly. Pins 16 and 16 'provided above and below
And a rotatable support for the peeling tool holding member 15 holding the peeling tool by the handle 1.
By driving 7 in the direction of arrow B, the coating of the outer coating tube 19 that is held by the chuck 18 and rotates in the direction of arrow A can be peeled off.

[0008]

In the apparatus for peeling a coating layer of an outer cladding tube shown in FIG. 10, the peeling tool holding member corresponds to an outer cladding tube of one kind of outer diameter. It is necessary to change the peeling tool holding member 15 every time the pipe diameter changes, the replacement operation becomes complicated, and it is necessary to prepare a large number of peeling tool holding members 15.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, the present invention provides a method for peeling a coating layer of an outer cladding tube provided with a peeling tool holding member capable of coping with a plurality of types of outer cladding tubes having different vibrating diameters with one peeling tool holding member. It is intended to realize the device.

[0010]

According to the present invention, there is provided an apparatus for peeling a coating layer of an outer cladding tube according to the present invention, comprising: a frame; and a rotating means provided horizontally on a head portion of the frame and rotated by a driving means. A shaft, a chuck 18 attached to the rotating shaft to bite the workpiece, and a peeling tool holding member 15 holding a peeling tool for peeling a coating layer on the outer periphery of the workpiece held by the chuck 18 And the peeling tool holding member 1
A handle member 13 rotatably supporting the upper and lower sides of the handle 5 and having a handle 17 at one end and a slide member slidably provided at the other end; and the slide member provided on the frame 10. A support shaft 12 for rotatably supporting a handle member 13 through the handle 1;
In the apparatus for peeling a coating layer of an outer cladding tube comprising a guide member 14 for guiding in parallel with the central axis of the cutting tool 8, the peeling tool holding member 15 comprises a peeling tool holding member main body 21, a ratchet plate 23, and a tool. The separation tool holding member main body 21 includes a cylindrical portion 21a having an opening on a side surface, and a bottom portion 21b connected to the opening to support the tool portion supporting table 22. And walls 21c, 21 rising from both sides of the bottom portion 21b and connecting to the cylindrical portion 21a.
d are integrally formed, the ratchet plate 23 has a plurality of ratchet teeth 23a formed on a surface thereof, and is fixed to one wall of the peeling tool holding member main body 21. The tool portion support base 22 is provided with the ratchet plate 23. Has a ratchet claw 24 that engages with a ratchet tooth 23a, and is movably fixed to the bottom 21b of the peeling tool holding member main body 21, and supports the tool portion 25 on the upper surface. It has a cutting blade 43 for peeling off the coating layer of the tube.

Further, in addition to the above, the tool part 25 includes
A cutting blade member 44 provided with a cutting blade 43 having a button-shaped guide 42 at the tip and a ball member 47 having a ball 46 at the tip are provided. Further, the tool part 25 includes a cutting tool 65 having a cutting blade and a chip guide 66. Further, the peeling tool holding member 15 is characterized in that a plurality of liners 100 having different inner diameters can be selected and mounted.

[0012] With this configuration, the coating layer of the plural kinds of outer cladding tubes having different pipe diameters can be peeled by adjusting the tool part support base supporting the tool part of the peeling tool holding member back and forth.

[0013]

FIG. 1 is a diagram showing an embodiment of the present invention. As shown in the figure, the coating layer peeling device for an outer coating tube of the present embodiment has an elastic portion 11 and a frame 1.
A handle member 13 swingably mounted on the shaft 12 implanted in the handle member 13; a guide rail 14 for guiding the central portion of the handle member 13 so as to linearly move; It has a peeling tool holding member 15 rotatably supported by pins 16 and 16 ′ provided above and below, a chuck 18 for biting the outer coating tube, and a drive mechanism (not shown) for rotating the chuck 18. This is the same as the conventional coating layer peeling apparatus described with reference to FIG.

A feature of the present invention resides in a peeling tool holding member.
FIG. 2 is an exploded perspective view showing the peeling tool holding member according to the embodiment of the present invention. In the drawing, reference numeral 21 denotes a peeling tool holding member main body, 22 denotes a tool portion support base, 23 denotes a ratchet plate, 24 denotes a ratchet claw, and 25 denotes a tool portion.

The peeling tool holding member body 21 is shown in FIGS.
As shown in FIG.
And a bottom 21b and both side walls 21c, 2c connected to the opening.
A tool support having 1d is integrally formed.
The cylindrical portion 21a has an inner diameter larger than the outer diameter of the outer coating tube from which the coating layer is to be peeled, and is provided with pin holes 26, 26 'for being rotatably supported by the handle member up and down. I have.

A long hole 28 for inserting a bolt 27 for fixing the tool support 22 is formed in the bottom 21b of the tool support portion of the peeling tool holding member main body 21, and a ratchet is formed in one wall 21c. A hole 29 through which a bolt for fixing the plate is inserted is formed. The other side wall 21d is provided with a slit 31 through which the operation shaft 30 of the ratchet pawl 24 mounted on the tool support 22 can be inserted and moved.

The ratchet plate 23 has a rectangular plate shape as shown in FIG.
a is formed, and the tool holding member main body 21 is provided at a predetermined position.
A screw hole 32 for fixing the tool holding member 21 is formed, and is fixed by a bolt 33 inserted through a hole 29 provided in one side wall 21c of the tool holding member main body 21.

The tool part support base 22 is a substantially rectangular parallelepiped block, and a screw hole 34 penetrating vertically for fixing the tool part support base 22 to the peeling tool holding member main body 21 is provided substantially in the center thereof. A screw hole 35 for fixing the portion 25 is provided. The tool support 22 has a stepped hole 3 through which the ratchet pawl 24 and the ratchet pawl operation shaft 30 are inserted.
6 is provided to extend horizontally.

The ratchet claw 24 has a claw 24a at its tip for engaging with the ratchet teeth 23a of the ratchet plate 23, and a ratchet claw operating shaft 30 is connected to the other end.
A knob 38 having a push screw 37 is attached to the side of the ratchet pawl operation shaft 30 opposite to the ratchet pawl 24. Then, the ratchet pawl 24 and the ratchet pawl operating shaft 30 are inserted into the stepped hole 36 of the tool support 22 together with the spring 39, and the ratchet pawl 24 is urged toward the ratchet plate 23 by the spring 39. I have.

The tool portion 25 is a rectangular parallelepiped block, and two parallel through holes 40 and 41 are drilled horizontally, and one of the through holes 40 has a button-shaped guide 42 at its tip. A cylindrical cutting blade member 44 having a diamond-shaped cutting blade 43 is inserted and fixed by a push screw 45. The ball 4 is inserted into the other through hole 41 at the tip.
A cylindrical ball member 47 having a 6 is inserted and fixed with a push screw 48. The tool part 2
5 is provided with a through hole 49 at the center, and a bolt 50 is inserted through the through hole 49 to be screwed into a screw hole of the tool support 22 to be fixed.

The members thus formed are assembled as shown in FIG. That is, the peeling tool holding member main body 2
The ratchet plate 23 is attached to the first wall 21c with bolts 33. Further, the ratchet pawl 24 and the ratchet pawl operating shaft 30 are inserted into the stepped hole 36 together with the spring 39, and the tool part support base 22 having the knob 38 fixed to one end of the ratchet pawl operating shaft 30 is used as the peeling tool holding member by the bolt 27. It is attached to the bottom 21b of the main body 21.

Further, the tool portion 25 is placed on the tool portion support base 22.
Are attached by bolts 50, a cutting blade member 44 having a cutting blade 43 is inserted into the through hole 40 of the tool part 25, and a ball member 47 having a ball 46 is inserted into the through hole 41, and set with screws 45 and 48. Fixed. Then, the dimensional difference h between the guide 42 of the cutting blade member 44 and the tip of the ball member 47 is adjusted so as to be equal to the thickness of the coating layer to be separated.

The peeling tool holding member thus assembled according to the embodiment of the present invention is rotatably attached to the upper and lower pin holes by the pins 16, 16 'of the handle member as shown in FIG.

In the embodiment of the present invention configured as described above, the position of the tool portion 25 is adjusted so that the ball 46 of the tool portion lightly hits the surface of the outer cladding tube 19 held by the chuck 18. By moving the handle 17 of the handle member 13 in the direction of arrow B while rotating the outer coating tube 19 in the direction of arrow A, the guide 42 is inserted between the coating layer of the outer coating tube 19 and the mother tube, and the cutting blade 43 Can spirally cut and peel the coating layer. In this case, if the difference h between the inflow and outflow of the ball 46 and the guide 42 is made equal to the thickness of the coating layer, only the surface layer of the two-layer coating tube can be peeled off.

When the diameter of the pipe is changed, it can be dealt with by loosening the bolt 27 and moving and adjusting the position of the tool portion 25 together with the tool portion support base 22. In this case, the ratchet pawl 24 is engaged with the ratchet teeth 23a of the ratchet plate 23, so that the tool portion support base 22 can be prevented from slipping.

FIG. 5 is an exploded perspective view showing another example of the peeling tool holding member according to the embodiment of the present invention. In the figure, reference numeral 61 denotes a peeling tool holding member main body, 62 denotes a tool portion support base, 63 denotes a ratchet plate, 64 denotes a ratchet claw, 65 denotes a cutting tool, and 66 denotes a chip guide.

As shown in FIGS. 5 and 6, the peeling tool holding member main body 61 has a cylindrical portion 61 having a partially opened side surface.
a, a bottom portion 61b connected to the opening, and both side walls 61c,
A tool supporting portion having 61d is formed integrally with the cylindrical portion 61a. The inner diameter of the cylindrical portion 61a is larger than the outer diameter of the outer coating tube from which the coating layer is to be peeled, and the cylindrical portion 61a is rotatably supported by the handle member up and down. Are provided at the bottom 61b of the tool support portion.
Is formed in one wall 61c, and a fool hole 70 for attaching a ratchet plate is formed in one wall 61c, and a slit 72 is formed in the other wall 61d to allow a ratchet pawl operation shaft 73 to pass therethrough. The above is the same as the separation tool holding member main body 21 described with reference to FIG. 3, except that a boss 69 having a pin hole 68 is provided in the cylindrical portion 61 a.

As shown in FIG. 5, the tool support 62 has walls 74, 74 'for positioning the cutting tool 65 and the chip guide 66 on the left and right sides of the upper surface of the substantially rectangular parallelepiped block, and a push screw 75.
A boss 77 having a screw hole 76 into which is screwed is provided,
A screw hole 79 is provided to penetrate vertically from the center of the upper surface and fix the cutting tool 65 and the chip guide 66 with bolts 78. Also, from the lower surface, the cutting tool support 62
There is provided a screw hole (not shown) for fixing to the peeling tool holding member main body 61 with a bolt 80. Further, a stepped hole 82 through which the ratchet pawl 64 and the ratchet pawl operating shaft 73 are inserted is provided in the tool part support base 62 so as to extend horizontally.

The ratchet plate 63 has a rectangular plate shape, and has a plurality of sawtooth-like ratchet teeth 63a formed on one surface thereof, and a screw hole 83 for fixing to the peeling tool holding member main body 61 at a predetermined position. It is perforated and is fixed by a bolt 84 inserted through a hole 70 provided in one side wall 61 c of the peeling tool holding member main body 61.

The ratchet claw 64 has a claw 64a at its tip for engaging with the ratchet teeth 63a of the ratchet plate 63.
And a ratchet pawl operation shaft 73 is connected to the other end. A knob 86 having a push screw 85 is attached to the side of the ratchet pawl operation shaft 73 opposite to the ratchet pawl. The ratchet pawl 64 and the ratchet pawl operation shaft 73 are inserted into the stepped hole 82 of the tool support 62 together with the spring 87.

Further, the tool portion comprises a cutting tool 65 and a chip guide 66. The cutting tool 65 has a rectangular plate shape with one corner cut obliquely. A blade 89 is formed. In the chip guide 66, a fixing hole 90 is formed in the center of the plate having an L-shaped cross section, and two projections 9 for the chip guide are provided at the rising portion.
1, 91 'are formed.

The members thus formed are assembled as shown in FIG. That is, the peeling tool holding member body 6
The ratchet plate 63 is attached to the first wall 61c by bolts 84, and the tool part support base 62 in which the ratchet pawl 64 and the ratchet pawl operation shaft 73 are inserted into the stepped hole 82 together with the spring 87 is attached to the bottom 61b by bolts 80.
Further, a cutting tool 65 and a chip guide 6 are placed on the tool support 62.
6 is attached by bolts 78.

A knob 86 is attached to the end of the ratchet pawl operation shaft 73 by a push screw 85. A screw 75 is inserted into a screw hole 76 of a boss 77 of the tool support 62.
Is screwed in so that the position of the cutting tool 65 can be finely adjusted.

In FIG. 7, reference numeral 100 denotes a liner used when the outer cladding tube has a small diameter. As shown in FIG. 8, the liner 100 has a shape in which a part of a cylinder 102 having a flange portion 101 is cut, and a concave portion 103 provided in the flange portion 101 holds a peeling tool as shown in FIG. The hook-shaped pin 104 mounted on the boss portion 69 of the member main body 61 is engaged and fixed.

The peeling tool holding member thus assembled is used in place of the peeling tool holding member 15 in the embodiment described with reference to FIG. In the case of the present embodiment, by adjusting the positions of the tool support 62 and the cutting tool 65, and by exchanging the liner 100, it is possible to cope with the coating layer peeling of various outer coating tubes having different outer diameters, and Since the outer cladding tube is supported by the liner, a stable peeling operation can be performed.

[0036]

According to the coating layer peeling device for an outer coating tube of the present invention, a plurality of types of outer coatings having different pipe diameters can be adjusted by adjusting a tool supporting table supporting a tool portion of a peeling tool holding member back and forth. The coating layer of the tube can be peeled off. Therefore, one tool holding member can handle a plurality of outer cladding tubes having different outer diameters.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a peeling tool holding member according to the embodiment of the present invention.

FIGS. 3A and 3B are diagrams showing a peeling tool holding member main body of the peeling tool holding member according to the embodiment of the present invention, wherein FIG.
(B) is a front view, (c) is sectional drawing in the cc line of (b) figure.

FIGS. 4A and 4B are assembly views showing a peeling tool holding member according to the embodiment of the present invention, wherein FIG. 4A is a top view and FIG.

FIG. 5 is an exploded perspective view showing another peeling tool holding member according to the embodiment of the present invention.

FIGS. 6A and 6B are views showing a peeling tool holding member main body of another peeling tool holding member according to the embodiment of the present invention, wherein FIG. 6A is a top view, FIG. 6B is a front view, and FIG. It is sectional drawing in the cc line of FIG.

FIGS. 7A and 7B are assembly views showing another peeling tool holding member according to the embodiment of the present invention, wherein FIG. 7A is a top view and FIG.

8A and 8B are views showing a liner of another peeling tool holding member according to the embodiment of the present invention, wherein FIG. 8A is a top view, FIG. 8B is a front view, and FIG. FIG.

FIG. 9 is a perspective view showing a conventional coating layer peeling device for an outer coating tube.

FIG. 10 is a perspective view showing a conventional improved coating layer peeling device for an outer cladding tube.

[Explanation of symbols]

 Reference Signs List 20 peeling tool holding member 21, 61 peeling tool holding member main body 22, 62 tool support 23, 63 ratchet plate 24, 64 ratchet claw 25 tool part 26, 26 ', 67, 67', 68 ... Pin holes 27,33,50,78,80,84 ... Bolts 28,71 ... Long holes 29,70,88,90 ... Hole 30,73 ... Ratchet claw operating shaft 31,72 ... Slits 32,34,35, 76, 79, 83 ... screw holes 36, 82 ... stepped holes 37, 45, 48, 75, 85 ... push screws 38, 86 ... knobs 39, 87 ... springs 40, 41, 49 ... through holes 42 ... guides 43 ... Cutting blade 44 ... Cutting blade member 46 ... Ball 47 ... Ball member 65 ... Bite 66 ... Chip powder guide 69,77 ... Boss 100 ... Liner

Continuation of the front page (72) Inventor Masami Yamanaka 1-3-1 Kitako Shiratsu, Konohana-ku, Osaka-shi Osaka Gas Co., Ltd. (72) Inventor Toshiko Goto 1-3-1 Kita-ko Shiratsu, Konohana-ku, Osaka-shi No. Osaka Gas Co., Ltd. (72) Inventor Hideo Ito 3-11-3 Kitahorie, Nishi-ku, Osaka-shi, Osaka Intra-company Toba Yoko Co., Ltd. (72) Inventor Ryo Sakaguchi 147-5 Matsumidai, Ikoma, Nara Prefecture (72) Invention Person Hiroshi Yoshida 1-2-1-7 Hanazono Nishimachi, Higashiosaka City, Osaka (72) Inventor Satoru Ishikawa 2-10-23 Shinimasato, Ikuno-ku, Osaka City, Osaka Prefecture 5-C

Claims (4)

[Claims] 1. A frame, a rotating shaft horizontally provided on a head portion of the frame and driven to rotate by a driving means, a chuck attached to the rotating shaft to bite a workpiece, A peeling tool holding member that holds a peeling tool that peels off the coating layer on the outer periphery of the workpiece that has been bitten,
A handle member rotatably supporting the upper and lower sides of the peeling tool holding member and having a handle at one end and a slide member slidably provided at the other end; and a sliding member provided on the frame. A coating layer peeling device for an outer cladding tube, comprising: a support shaft rotatably supporting a handle member via a member; and a guide member for guiding the handle member in parallel with a center axis of the chuck. The peeling tool holding member includes a peeling tool holding member main body, a ratchet plate, a tool portion support base, and a tool portion. The peeling tool holding member main body has a cylindrical portion having an opening on a side surface, and the opening. A bottom portion connected to the support portion and supporting the tool portion support base, and a wall rising from both sides of the bottom portion and connected to the cylindrical portion, are integrally formed, and the ratchet plate has a plurality of ratchet teeth formed on a surface thereof, Holding member The tool support is fixed to one wall of the body, the tool support has a ratchet claw that engages with the ratchet teeth of the ratchet plate, is movably fixed to the bottom of the peeling tool holding member main body, and An apparatus for peeling a coating layer of an outer cladding tube, wherein the apparatus supports a tool part, and the tool part has a cutting blade for peeling a coating layer of the outer cladding tube. 2. A tool according to claim 1, wherein said tool portion is provided with a cutting blade member provided with a cutting blade having a button-shaped guide at a tip and a ball member provided with a ball at a tip. A coating layer peeling device for an outer cladding tube. 3. The apparatus according to claim 1, wherein the tool portion comprises a cutting tool having a cutting blade and a chip guide. 4. The apparatus according to claim 1, wherein a plurality of liners having different inner diameters can be selectively mounted on the peeling tool holding member.