JP6441108B2 - Tube antifouling jig and tube cutting method - Google Patents

Description

  The present invention relates to a tube body antifouling jig and a tube body cutting method.

  Conventionally, a hose cutting method has been disclosed in which when cutting a hose in which a reinforcing layer having a spiral structure is embedded, the shape of the cutting edge is characterized to prevent deterioration of the properties of the cut surface (see Patent Document 1). ). With this technique, the amount of generated chips can be reduced.

JP 2014-004649 A

  By the way, when cutting a tubular body such as a hose, chips remain scattered inside the tubular body, and it takes time and effort to clean it. In particular, when cutting while applying water or cutting oil, chips adhere to the inner wall of the tube, making cleaning difficult. According to the technique disclosed in Patent Document 1, it is possible to reduce the amount of generated chips, but it is not possible to suppress the scattered chips. For this reason, it is necessary to clean the inside of the tube.

  In view of the above-described facts, an object of the present invention is to provide a tube antifouling jig and a tube cutting method for suppressing chips generated during cutting of a tube from being scattered inside the tube.

  The invention according to the first aspect includes a linear member having a distal end inserted from one end of a tubular body, and the tubular body in a state where the linear member is passed through a first through-hole through which the linear member penetrates. A porous body that is transportable in the axial direction of the body and whose outer peripheral portion is in contact with the inner peripheral surface of the tubular body, and is attached to the distal end side of the linear member relative to the porous body, the porous body A first stopper that suppresses movement of the linear member of the porous body toward the distal end side by abutting with the porous member, and the tube on the opposite side of the distal end side of the linear member from the porous body A body portion attached to the one end portion of the body and sealing the one end portion; a second through hole provided in the body portion through which the linear member passes; and provided in the body portion; A sealing member having a supply hole for supplying a gas to a space between the material and the main body portion It is an antifouling jig.

In the invention of the first aspect, the porous body is transferred into the tube body by supplying gas through the supply hole to the space between the sealing member and the porous body.
And if a porous body contact | abuts to a 1st stopper, the movement to the front end side of the linear member of a porous body will be suppressed by the 1st stopper.
Here, the porous body can be placed at an arbitrary position inside the tubular body by marking the linear member to be inserted into the tubular body in advance so that the distance traveled by the porous body can be understood. Can be placed and the tube can be cut to a desired length.

  By cutting the porous body together with the tube at the position where the porous body is disposed, the generated chips remain inside the porous body, and the generated chips are prevented from being scattered inside the tube. . Therefore, no chips remain inside the tube after cutting.

  The invention of the second aspect is the invention of the first aspect, wherein the linear member is attached to the linear member on a side opposite to the distal end side of the linear member relative to the sealing member, and comes into contact with the sealing member. It is a tubular body antifouling jig having a second stopper that defines the amount of the linear member inserted into the tubular body.

In the second aspect of the invention, when the second stopper comes into contact with the sealing member, the insertion of the linear member into the tubular body is restricted and the insertion amount of the linear member is defined. Moreover, since the 1st stopper is attached to the front end side of the linear member, the transfer distance of a porous body is prescribed | regulated.
Therefore, if the position for attaching the second stopper is determined in advance, the porous body can be arranged at a predetermined position inside the tubular body, and the tubular body can be cut to a desired length. The chips generated at this time remain inside the porous body, and the generated chips are prevented from being scattered inside the tube.

  According to a third aspect of the invention, in the second aspect of the invention, the second stopper is attached with the second flat plate in contact with the sealing member and the linear member interposed therebetween, and the second flat plate is interposed via the second flat plate. A tube antifouling jig having a second clip for defining an insertion amount of the linear member.

In the third aspect of the invention, when the gas is supplied to the space between the sealing member and the porous body by the second clip, the insertion amount of the linear member can be defined with a simple operation. The transport distance of the porous body can be easily defined. The mounting position can be easily adjusted.
Moreover, when a 2nd flat plate transfers a porous body, it can suppress that a 2nd clamping tool embeds in a 2nd through-hole.

  The invention of a fourth aspect is the invention of any one of the first aspect to the third aspect, wherein the first stopper is attached with the first flat plate contacting the porous body and the linear member interposed therebetween. A first anti-fouling jig that suppresses the porous body from moving to the tip side of the linear member via the first flat plate.

In the fourth aspect of the invention, it is possible to easily suppress the porous body from moving toward the distal end side of the linear member by the first clip. The mounting position can be easily adjusted.
Further, since the flat plate suppresses the deformation of the porous body, when transferring the porous body, a gap is generated between the outer peripheral portion of the porous body and the inner peripheral surface of the tubular body, and the gas leaks. It is possible to suppress and efficiently transfer the porous body.

  Invention of 5th aspect is invention of any one aspect of 1st aspect-4th aspect, The said supply hole is connected to the said 2nd through-hole, The said gas is supplied through the said 2nd through-hole, This is a tube antifouling jig.

  In the fifth aspect of the invention, since the gas can be supplied to the space inside the tube through the second through hole, the structure of the sealing member can be simplified compared to the case where the supply hole and the second through hole are provided separately. Can be a thing.

  The invention of a sixth aspect is the invention of any one of the first aspect to the fifth aspect, wherein the second through-hole is on the opposite side of the front end side of the linear member from the junction with the supply hole. The tube antifouling jig is provided with a seal member for sealing between the linear member and the second through hole.

  In the sixth aspect of the invention, the gas can be prevented from leaking from the second through hole, and the porous body can be efficiently transferred into the tube body.

  In the seventh aspect of the invention, a porous body whose outer peripheral portion is sized to abut on the inner peripheral surface of a tubular body is transferred into the tubular body, and the porous body is moved together with the tubular body at a position where the porous body is transported. This is a tube cutting method for cutting a material.

  In the seventh aspect of the invention, by cutting the porous body together with the tubular body at the position where the porous body has been transferred, the generated chips remain inside the porous body, and the generated chips are inside the tubular body. Scattering is suppressed. Therefore, no chips remain inside the tube after cutting.

  The eighth aspect of the invention is the seventh aspect of the invention, wherein the pipe antifouling jig according to any one of the first to sixth aspects is used, and the gas is supplied from the supply hole of the sealing member. Supplying the porous body to a predetermined position of the tubular body, and cutting the porous body together with the tubular body at the predetermined position.

In the eighth aspect of the invention, the porous body is transferred into the tubular body by supplying gas through the supply hole to the space between the sealing member and the porous body.
Further, since the porous body is transferred by gas, it can be arranged inside the tube body more easily than when it is pushed in by a rod-shaped member, for example.

  The ninth aspect of the invention is the seventh aspect of the invention, wherein the pipe antifouling jig according to any one of the first to sixth aspects is used, and the wire is formed in the first through hole of the porous body. A linear member, and the linear member is penetrated through the second through hole of the sealing member, and the first fastener and the porous body are attached to the linear member after the first fastener is attached to the linear member. Is inserted from the one end of the tubular body, the sealing member is attached to the one end of the tubular body to seal the one end, and the gas is supplied from the supply hole of the sealing member. It is a tubular body cutting method of transferring the porous body to a predetermined position of the tubular body and cutting the porous body together with the tubular body at the predetermined position.

In the ninth aspect of the invention, the porous body is transferred into the tubular body by supplying gas through the supply hole to the space between the sealing member and the porous body.
And if a porous body contact | abuts to a 1st stopper, the movement to the front end side of the linear member of a porous body will be suppressed by the 1st stopper.
Here, the porous body can be placed at an arbitrary position inside the tubular body by marking the linear member to be inserted into the tubular body in advance so that the distance traveled by the porous body can be understood. Can be placed and the tube can be cut to a desired length.

Then, by cutting the tubular body and the porous body at the position where the porous body is disposed, the generated chips remain inside the porous body, and the generated chips are prevented from being scattered inside the tubular body. . Therefore, no chips remain inside the tube after cutting.
Further, since the porous body is transferred by gas, it can be arranged inside the tube body more easily than when it is pushed in by a rod-shaped member, for example.

  The tenth aspect of the invention is the seventh aspect of the invention, wherein the pipe body antifouling jig according to any one of the second aspect to the sixth aspect is used, and the wire is formed in the first through hole of the porous body. A linear member is passed through, the linear member is passed through the second through hole of the sealing member, the first stopper is attached to the linear member, and the second stopper is attached to the linear member Then, the first stopper and the porous body are inserted from the one end of the tube, the sealing member is attached to the one end of the tube, the one end is sealed, and the sealing is performed. A tube cutting method in which the gas is supplied from the supply hole of a stop member, the porous body is transferred to a predetermined position of the tube, and the porous body is cut together with the tube at the predetermined position. .

In the tenth aspect of the invention, when the second stopper comes into contact with the sealing member, the insertion of the linear member into the tubular body is restricted and the insertion amount of the linear member is defined. Moreover, since the 1st stopper is attached to the front end side of the linear member, the transfer distance of a porous body is prescribed | regulated.
Therefore, if the position for attaching the second stopper is determined in advance, the porous body can be arranged at a predetermined position inside the tubular body, and the tubular body can be cut to a desired length. The chips generated at this time remain inside the porous body, and the generated chips are prevented from being scattered inside the tube.

  According to the tubular body antifouling jig and the tubular body cutting method according to the present invention, it is possible to obtain an excellent effect of suppressing chips generated during the cutting of the tubular body from being scattered inside the tubular body.

It is sectional drawing of the pipe | tube antifouling jig | tool in 1st embodiment of this invention. It is sectional drawing of the pipe body antifouling jig | tool in 2nd embodiment of this invention. It is the flowchart which showed a part of tube cutting method in 1st embodiment of this invention. (A) shows the state which assembled the pipe body antifouling jig, (b) shows the state which inserted the front-end | tip of a linear member and the porous body in the pipe body, (c) shows the sealing member in the tube The state attached to the one end part of a body is shown, (d) shows the state by which the porous body was transferred to the predetermined position in a pipe body. It is the flowchart which showed a part of tube cutting method in 1st embodiment of this invention. (A) shows a state in which the porous body is arranged at a predetermined position and the tubular body cutting device is set, (b) shows a state in which the tubular body has been cut, and (c) shows that each member is cut after cutting. The separated state is shown. It is the flowchart which showed a part of tube cutting method in 2nd embodiment of this invention. (A) shows the state which assembled the pipe body antifouling jig, (b) shows the state which inserted the front-end | tip of a linear member and the porous body in the pipe body, (c) shows the sealing member in the tube The state attached to the one end part of a body is shown, (d) shows the state by which the porous body was transferred to the predetermined position in a pipe body. It is sectional drawing which shows other embodiment of the sealing member in this invention. (A) Other embodiment about a sealing part, (b), (c) shows the other embodiment about a supply hole.

[First embodiment]
Hereinafter, the tube antifouling jig 10 of the first embodiment will be described with reference to the drawings.
The tube in the present invention is a resin tube such as a rubber tube, a vinyl chloride tube or a cross-linked polyethylene tube, a metal tube, or a tube in which a wire reinforcing layer is disposed inside a resin tube, a yarn reinforcing tube, or a hose. It is a concept including various hollow elongate members such as those to be made.

  As shown in FIG. 1, the tube antifouling jig 10 of the present embodiment includes a porous body 20, a linear member 30, and a first stopper 40.

(Porous body)
The porous body 20 is a cylindrical elastic foam (for example, sponge) having bubbles inside, and is inserted into the tube body 70 so that the outer peripheral portion 22 in the radial direction is in contact with the inner peripheral surface 71 of the tube body 70. Is done.
The outer diameter of the porous body 20 is larger than the diameter of the inner peripheral surface 71 of the tubular body 70. When the porous body 20 is inserted into the tubular body 70, the outer diameter of the porous body 20 is reduced and inserted. The outer peripheral portion 22 is in close contact with the inner peripheral surface 71 of the tubular body 70.
A first through hole 21 is formed along the axial direction at the radial center of the porous body 20. The first through hole 21 is sized to allow the linear member 30 to pass therethrough.

The porous body 20 is preferably an elastic foam that is open-celled so as to reduce the diameter when compressed in the radial direction. Further, it is desirable that the eyes be fine so that the chips are not scattered inside the tube. Moreover, since the blade of the tubular body cutting device 90 to be described later at the time of cutting may become a high temperature, it is desirable that the material is flame retardant or non-flammable.
In this embodiment, the inner diameter of the tubular body 70 is 25 mm, the diameter of the outer peripheral portion 22 of the porous body 20 is 30 mm, and the length in the axial direction is 35 mm.

(Linear member)
The linear member 30 is a steel twisted string (so-called wire) penetrating the first through hole 21 formed in the porous body 20, and the tip 31 is inserted into the tube body 70.
The linear member 30 has a first end closer to the tip 31 side of the linear member 30 than the porous body 20, in other words, closer to the front side (left side in FIG. 1) than the porous body 20 when viewed from the tip 31 of the linear member 30. A stop 40 is attached.
Further, the linear member 30 is on the side opposite to the end 31 side of the linear member 30 from the porous body 20, in other words, the back side from the porous body 20 as viewed from the front end 31 of the linear member 30 (right side in FIG. 1). ) Through the second through hole 51 formed in the sealing member 50 described later.

(First stop)
The first stopper 40 includes a clip tool 41 and a flat plate 42.
The clip 41 is a clip having a shape of a laundry pin obtained by bending a hard steel wire. The clip 41 is closer to the tip 31 side of the linear member 30 than the porous member 20, in other words, more than the porous member 20 when viewed from the tip 31 of the linear member 30. The linear member 30 is sandwiched between the front side and the front side.
The flat plate 42 is a circular flat resin plate disposed between the sandwiching tool 41 and the porous body 20. The linear member 30 passes through the through hole 42 a, and the outer diameter is the inside of the tube body 70. The diameter is smaller than the diameter of the peripheral surface 71. Further, the diameter is larger than that of the first through hole 21 of the porous body 20.

With these configurations, the pinching tool 41, the flat plate 42, and the porous body 20 are arranged on the linear member 30 in this order from the tip 31 side.
When an external force is applied to the porous body 20 along the insertion direction of the porous body 20 into the tube body 70, pressure is applied by, for example, a gas (for example, compressed air) supplied from the gas pumping device 80. In this case, the clip 41 suppresses the movement of the porous body 20 toward the tip 31 side of the linear member 30 via the flat plate 42. Further, the deformation of the porous body 20 by the flat plate 42 is suppressed.

(Sealing member)
The sealing member 50 is located on the side opposite to the tip 31 side of the linear member 30 with respect to the porous body 20, in other words, on the back side of the porous body 20 with respect to the tip 31 of the linear member 30, and outside the tubular body 70. A cylindrical member made of resin that seals one end portion 73 that is an end portion, and forms a space 74 between the porous body 20 inserted into the tubular body 70.
The sealing member 50 is formed in a cylindrical shape, and the one end portion 73 of the tube body 70 is sealed by inserting the sealing portion 52 having a reduced diameter along the column axis direction to the one end portion 73 up to the sealing position 57.
A second through hole 51 is formed in the central portion of the sealing member 50 along the axial direction, and the linear member 30 is penetrated.
In addition, an opening end 54 a of a supply hole 54 that connects the tubular body external space and the second through hole 51 is formed in the outer peripheral portion 53 of the sealing member 50.

  The second through hole 51 and the supply hole 54 have a diameter sufficient to pump compressed gas into the space 74 inside the tube body 70, and gas such as an air gun or a compressor is provided at the opening end 54 a of the supply hole 54. A pressure feeding device 80 (see FIG. 3D) is connected.

An annular locking groove 55 is formed on the inner peripheral surface of the second through hole 51 closer to the end surface 58 than the supply hole 54, and an O-ring 56 (an example of a seal member) is inserted and locked. .
The linear member 30 is inserted into the O-ring 56, and the outer peripheral portion of the linear member 30 and the inner peripheral portion of the O-ring 56 are in contact with each other to seal the second through hole 51.

[Tube cutting method]
Hereinafter, a tube cutting method using the tube antifouling jig 10 of the first embodiment will be described with reference to the drawings.

(Assembly process)
An assembling method of the tube antifouling jig 10 of the first embodiment will be described with reference to FIG.
As shown in FIG. 3A, first, the linear member 30 is passed through the second through hole 51 of the sealing member 50.
Next, the linear member 30 is sequentially passed through the first through hole 21 of the porous body 20 and the through hole 42 a of the flat plate 42, and the pinching tool 41 is attached to the tip 31 side of the linear member 30.

  At this time, the pinching tool 41, the flat plate 42, and the porous body 20 are brought into close contact with each other, and the cutting position of the porous body 20 from the end surface 23 of the linear member 30 from the position where the end surface 23 of the porous body 20 is disposed. M at a position of a length L (L1 + L2 + L3) including a length L1 up to 24, a desired pipe length L2, and a distance L3 from the sealing position 57 of the sealing member 50 to the end face 58 of the sealing member 50 Keep on.

(Insertion process)
Next, as shown in FIG. 3B, the porous body 20 is inserted into the tube body 70, and as shown in FIG. 3C, the sealing member 50 is attached to one end 73 of the tube body 70, One end 73 is sealed. At this time, the connection is made so that the one end portion 73 and the sealing position 57 of the sealing member 50 coincide.

(Transfer process)
Next, as shown in FIG. 3D, a gas pressure feeding device 80 is connected to the open end 54 a of the supply hole 54 of the sealing member 50, and gas is supplied to the space 74 inside the tube body 70. As a result, the porous body 20 is transferred into the tube body 70. At this time, gas is supplied until the mark M of the linear member 30 is inserted into the inside of the tubular body 70, and then the linear member 30 is pulled from outside the tubular body, and the end surface 58 of the sealing member 50 and the linear member 30 are pulled. The positions of the marks M are matched.

(Cutting process)
Next, a procedure for cutting the tubular body 70 will be described with reference to FIG. In FIG. 4, the display of the mark M is omitted.

First, as shown in FIG. 4A, the tube cutting device 90 is set at a position where the porous body 20 is disposed.
Since the position of the end face 58 of the sealing member 50 and the position of the mark M of the linear member 30 are matched in the transfer step, the position of the length L2 from the one end 73 of the tubular body 70 is the cutting position 24 of the porous body 20. Become.
Therefore, as shown in FIG. 4B, when the tube body 70 is cut by the tube cutting device 90, the porous body 20 is also cut at the cutting position 24 at the same time.

At this time, chips are generated from the tube body 70, but the porous body 20 has voids therein, so the chips G are taken into the voids and remain inside the porous bodies 20A and 20B after cutting.
Therefore, the generated chips G are prevented from being scattered inside the tube body 70, and the ends of the porous bodies 20A and 20B and the linear members 30 into which the chips G are taken as shown in FIG. If the material 30A is removed, a tubular body 70A having a desired length L2 is obtained, and the chips G are suppressed from remaining inside the tubular body.

  In order to continue cutting the tube body 70, the linear member 30 is pulled out from the tube body 70A in the direction of the arrow N simultaneously with the sealing member 50, and the procedures shown in FIGS. 3 and 4 are repeated thereafter. At this time, the 1st stopper 40 which consists of the clamping tool 41 and the flat plate 42 can be reused.

According to this tubular body cutting method, since the chips G do not remain inside the tubular body 70A, it is not necessary to clean the interior of the tubular body 70A after cutting.
Further, since the chips G stay inside the porous bodies 20A and 20B, it is easy to process the waste.

[Action]
Next, the operation of the tube antifouling jig 10 of the first embodiment and the tube cutting method using the tube antifouling jig 10 will be described.

In the first embodiment, when the tubular body 70 is cut by the tubular body cutting device 90, the generated waste chips G are obtained by cutting the porous body 20 together with the tubular body 70 at the position where the porous body 20 is disposed. Stays inside the porous body 20, so that the generated chips G are prevented from being scattered inside the tube body, and if the porous body 20 is removed, the chips do not remain inside the tube body 70.
Chip G refers to a piece of tube material or fine powder that is separated from the tube 70 when the tube 70 is cut, and is also referred to as contamination or the like, and is normally discarded.

  In addition, since the porous body 20 is transferred using the gas pressure feeding device 80, the porous body 20 can be easily arranged inside the tube body 70. At this time, the porous body 20 is arranged at an arbitrary position inside the tube body 70 by marking the linear member 30 in advance so as to know the distance to which the porous body 20 has been transferred. The tube 70 can be cut to a desired length.

  Moreover, since the porous body 20 is suppressed by the first stopper 40 from moving to the back side from the insertion back side end portion of the linear member 30, the porous body 20 is porous by pulling the linear member 30 after transfer or the like. By adjusting the position where the mass body 20 is arranged, it can be arranged at a predetermined position with higher accuracy.

  Further, when the porous body 20 is transferred, the outer peripheral portion 22 of the porous body 20 comes into contact with the inner peripheral surface 71 of the tubular body 70 and the porous body 20 moves, so the inside of the tubular body 70 is cleaned. You can also.

[Second Embodiment]
Hereinafter, the tube antifouling jig 11 according to the second embodiment will be described with reference to the drawings. In addition, about the part which becomes the same structure as 1st embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

(Second stop)
As shown in FIG. 2, the second stopper 60 includes a clip 61 and a flat plate 62.
The pinching tool 61 is a pinching tool obtained by bending a hard steel wire. The pinching tool 61 is opposite to the end 31 side of the linear member 30 than the sealing member 50, in other words, as viewed from the front end 31 of the linear member 30 than the sealing member 50. At the back side, the linear member 30 is sandwiched between and attached to the linear member 30.
The flat plate 62 is a circular flat resin plate disposed between the sandwiching tool 61 and the sealing member 50, and the linear member 30 passes through the through hole 62a.

With this configuration, the linear member 30 includes the first stopper 40 (the sandwiching tool 41 and the flat plate 42), the porous body 20, the sealing member 50, and the second stopper 60 in order from the tip 31 of the linear member 30. (Flat plate 62, pinching tool 61) are arranged.
When an external force is applied to the porous body 20 along the insertion direction of the porous body 20 into the tube body 70, for example, when pressure is applied by the gas supplied from the gas pumping device 80, the porous body 20 is porous. The mass body 20 moves in the inner direction of the tube body 70. At this time, since the second stopper 60 is attached to the linear member 30 outside the tubular body 70 in the axial direction, the second stopper 60 is moved to a predetermined distance when the porous body 20 moves a certain distance. The amount of insertion of the linear member 30 into the tubular body 70 is defined by contacting (hooking) 58. Thereby, the transfer distance of the porous body 20 is suppressed.

[Tube cutting method]
Hereinafter, a tube cutting method using the tube antifouling jig 11 of the second embodiment will be described with reference to the drawings.

(Assembly process)
A method for assembling the tube antifouling jig 11 of the second embodiment will be described with reference to FIG.
As shown in FIG. 5A, first, the linear member 30 is passed through the through hole 62 a of the flat plate 62 and the second through hole 51 of the sealing member 50.
Next, the linear member 30 is sequentially passed through the first through hole 21 of the porous body 20 and the through hole 42 a of the flat plate 42, and the sandwiching tool 41 is attached to the end of the linear member 30.
Further, the clip 61 is attached to the back side of the flat plate 62 as viewed from the tip 31 of the linear member 30.

  At this time, the sandwiching tool 41, the flat plate 42, and the porous body 20 are brought into close contact with each other, and the sandwiching tool 61, the flat plate 62, and the sealing member 50 are brought into close contact with each other from the end face 23 of the porous body 20. The length L to the end surface 58 is a desired pipe length L2 from the length L1 from the cutting position 24 to the end surface 23 of the porous body 20 and the sealing position 57 in the sealing portion 52 of the sealing member 50. The length is obtained by adding the distance L3 to the end face 58 (L = L1 + L2 + L3).

(Insertion process)
Next, as shown in FIG. 5B, the porous body 20 is inserted into the tube body 70, and as shown in FIG. 5C, the sealing member 50 is connected to the tube body 70 to Is sealed. At this time, the connection is made so that the one end portion 73 and the sealing position 57 of the sealing member 50 coincide.
At this time, the linear member 30 is bent and packed between the porous body 20 and the sealing member 50.

(Transfer process)
Next, as shown in FIG. 5 (d), a gas pressure feeding device 80 is connected to the open end 54 a of the supply hole 54 of the sealing member 50, and gas is supplied to the space 74 inside the tube body 70. As a result, the porous body 20 is transferred into the tube body 0. At this time, since the transport distance of the porous body 20 is suppressed by the second stopper 60 composed of the sandwiching tool 61 and the flat plate 62, the porous body 20 can be easily disposed at a predetermined position inside the tube body 70. Can do.

(Cutting process)
Next, a procedure for cutting the tubular body 70 will be described with reference to FIG. In addition, in FIG. 4, the display of the 2nd stopper 60 (the clamping tool 61, the flat plate 62) is abbreviate | omitted.

First, as shown in FIG. 4A, the tubular body cutting device 90 is set from the one end 73 of the tubular body 70 to the position of the length L2 described in FIG.
Since the transfer distance of the porous body 20 is suppressed by the second stopper 60 in the transfer process, the cutting position 24 of the porous body 20 is disposed at the position of the length L2 from the one end 73 of the tube body 70. Yes.
Therefore, as shown in FIG. 4B, when the tube body 70 is cut by the tube cutting device 90, the porous body 20 is also cut at the cutting position 24 at the same time.

At this time, chips are generated from the tube body 70, but the porous body 20 has voids therein, so that the chips G are taken into the voids and remain inside the porous body 20.
Therefore, the generated chips G are prevented from being scattered inside the tube body 70, and the end member 30A of the porous body 20 and the linear member 30 in which the chips G are taken in as shown in FIG. Is removed, the tubular body 70A having a desired length L2 is obtained, and the chips G are suppressed from remaining inside the tubular body.

  In order to continue cutting the tube body 70, the linear member 30 is pulled out from the tube body 70A in the direction of arrow N at the same time as the sealing member 50, and the procedures shown in FIGS. 5 and 4 are repeated thereafter. At this time, the first stopper 40 composed of the sandwiching tool 41 and the flat plate 42 and the second stopper composed of the sandwiching tool 61 and the flat plate 62 can be reused.

According to this tubular body cutting method, since the chips G do not remain inside the tubular body 70A, it is not necessary to clean the interior of the tubular body 70A after cutting.
Further, since the chips G remain inside the porous body 20, it is easy to process the waste.

[Action]
Next, the operation of the tube antifouling jig 11 and the tube cutting method using the tube antifouling jig 11 of the second embodiment will be described.

  In the second embodiment, when the porous body 20 is transferred to the inside of the tube body 70 by the air supplied from the gas pressure feeding device 80, the transfer distance of the porous body 20 is suppressed by the second stopper 60. Therefore, after marking the linear member 30 or transferring the porous body 20 with the gas pressure feeding device 80, it is not necessary to pull the linear member 30 and adjust it. It can be arranged at a predetermined position inside 70.

[Other Embodiments]
As mentioned above, although the example of embodiment of this invention was demonstrated, embodiment of this invention is not limited to the above, In addition to the above, in a range which does not deviate from the main point, various deformation | transformation can be implemented. Of course there is.

For example, in the above embodiment, the diameter of the outer peripheral portion 22 of the porous body 20 is 30 mm and the thickness in the axial direction is 35 mm with respect to the tube body 70 having an inner diameter of 25 mm, but about 30 ± 3 mm and about 35 ± 5 mm, respectively. If it is. Further, when the inner diameter of the tube body 70 is different, the diameter and the axial thickness of the outer peripheral portion 22 of the porous body 20 can be appropriately changed according to the inner diameter.
Moreover, the porous body 20 does not necessarily have a columnar shape, and any shape can be used as long as the chips can be retained inside the porous body 20 without scattering chips inside the tubular body 70. Good. For example, a spheroidal shape can be easily inserted into the tubular body 70.

  In addition, the linear member 30 is a steel twisted string (so-called wire). However, any material can be used as long as it penetrates the first through hole 21 of the porous body 20 and can be cut by the tube cutting device 90. For example, an organic fiber such as nylon thread or a metal material such as wire may be used. When the linear member 30 is made of a soft material, it can be easily cut when the tube body 70 is cut. Moreover, when the linear member 30 is made of a hard material, the first through hole 21 of the porous body 20 can be easily penetrated. Further, when the sealing member 50 is connected to the tube body 70, the linear member is not bent and packed between the porous body 20 and the sealing member 50 as shown in FIG. While being held, the tip 31 of the linear member 30 is inserted to the back of the tubular body 70. Therefore, even when the transport distance of the porous body 20 is long, the linear member 30 is not packed between the porous body 20 and the sealing member 50, so that the linear member 30 and the sealing member 50 can be easily attached. The tube 70 can be inserted.

  Moreover, although the 1st stopper 40 was comprised with the clamping tool 41 and the flat plate 42, and the 2nd stopper 60 shall be comprised with the clamping tool 61 and the flat plate 62, the linear member 30 is constituted by the clamping tools 41 and 61. As long as the movement of the porous body 20 can be suppressed, the flat plates 42 and 62 may be omitted.

Moreover, although the pinching tools 41 and 61 are clips obtained by bending hard steel wires, the clip is not limited to this as long as the linear member 30 can be pinched. For example, off-the-shelf products such as office clips may be used.
The flat plates 42 and 62 are also made of resin, but are not limited thereto, and may be a metal plate or the like as long as the deformation of the porous body 20 can be prevented. The durability is improved by using the flat plates 42 and 62 as metal plates. Further, the shape is a circular flat plate, but the shape is not limited to this, and any shape that can suppress the deformation of the porous body 20 may be used. For example, if the shape is hemispherical or cubic, the durability is further improved.

Further, the sealing member 50 is made of resin, but is not limited thereto, and may be made of metal, for example, as long as it can seal the one end 73 of the tube body 70. Durability improves by making the sealing member 50 metal.
Moreover, although the sealing part 52 shall be diameter-reduced along a column-axis direction, if it can seal the one end part 73 of the tubular body 70, it will not be restricted to this. For example, as shown in FIG. 6A, a stepped portion 59 may be provided to seal the one end portion 73. If the one end portion 73 is sealed with the step portion 59, the step portion 59 becomes the sealing position 57, and an error is unlikely to occur in the distance L3 from the sealing position 57 to the end surface 58. Therefore, the tubular body 70 can be cut with a more accurate length.

Moreover, although the opening end 54a of the supply hole 54 which connects the pipe body exterior space and the 2nd through-hole 51 shall be formed in the outer peripheral part 53 of the sealing member 50, for example in FIG.6 (b) As shown, it may be formed on the end face 58. In this case, even when a space for connecting the gas pressure feeding device 80 to the outer peripheral portion 53 of the sealing member 50 cannot be secured, the connection can be made from the end face 58.
Further, although the supply hole 54 communicates with the second through hole 51, it may be any one that can send gas to the space 74 inside the tube body 70. For example, as shown in FIG. 6C, it may communicate directly with the space 74 without passing through the second through hole 51.

  In addition, the clip 61 is attached after the linear member 30 has passed through the through hole 62a of the flat plate 62 and the second through hole 51 of the sealing member 50, but the clip 61 may be attached before the penetration. Good.

  Further, in the method for assembling the tube antifouling jig 11 of the second embodiment, the linear member 30 is passed through the second through hole 51 of the sealing member 50 and then into the first through hole 21 of the porous body 20. Although it was set as the structure penetrated, when the distance to the other end part of the linear member 30 is short, the linear member 30 is the 1st through-hole 21 of the porous body 20, the flat plate from the front-end | tip 31 side of the linear member 30. The linear member 30 may be passed through the second through hole 51 of the sealing member 50 from the other end side of the linear member 30 after sequentially passing through the through holes 42 a of 42.

  The tube cutting device 90 is not particularly limited as long as it can cut the tube 70, the porous body 20, and the linear member 30. For example, a rotary cutting apparatus using a steel round blade or a grindstone round blade or a guillotine type pressing cutting apparatus may be used.

10, 11 Tubular antifouling jig, 20 porous body, 30 linear member, 40 first stopper, 41 sandwiching tool, 42 flat plate, 50 sealing member, 60 second stopper, 61 sandwiching tool, 62 flat plate , 70 pipe body, 80 gas pressure feeding device, 90 pipe body cutting device

Claims (10)

A linear member whose tip is inserted from one end of the tubular body;
The tubular member can be transported in the axial direction of the tubular body with the linear member passing through the first through-hole through which the linear member penetrates, and the outer peripheral portion is in contact with the inner circumferential surface of the tubular body. A porous body in contact;
A first stopper that is attached to the distal end side of the linear member relative to the porous body and suppresses the movement of the linear member toward the distal end side of the linear member by contacting the porous body. When,
A main body part that is attached to the one end portion of the tubular body on the side opposite to the distal end side of the linear member from the porous body and seals the one end portion; and provided in the main body portion, A sealing member comprising: a second through-hole through which the shaped member penetrates; and a supply hole provided in the main body portion for supplying gas to the space between the porous body and the main body portion;
A tube body antifouling jig.   The linear member is attached to the linear member on a side opposite to the distal end side of the linear member relative to the sealing member, and the amount of insertion of the linear member into the tubular body is defined by coming into contact with the sealing member. The tubular antifouling jig according to claim 1, comprising a second stopper. The second stopper is a second flat plate that comes into contact with the sealing member;
A second sandwiching tool attached across the linear member and defining an insertion amount of the linear member via the second flat plate;
The tube antifouling jig according to claim 2, comprising: The first stopper is a first flat plate in contact with the porous body,
A first clamping tool that is attached across the linear member and suppresses the porous body from moving to the distal end side of the linear member via the first flat plate;
The pipe body antifouling jig according to any one of claims 1 to 3, comprising:   The tube antifouling jig according to any one of claims 1 to 4, wherein the supply hole communicates with the second through hole and supplies the gas through the second through hole. A seal member that seals between the linear member and the second through hole is provided on a side opposite to the tip side of the linear member of the second through hole with respect to the joining portion with the supply hole. and have a tube body antifouling jig according to any one of claims 1 to 5.   A porous body whose outer peripheral portion is sized to come into contact with the inner peripheral surface of the tubular body is inserted into the tubular body, one end of the tubular body is sealed with a sealing member, and the supply hole of the sealing member is used. A tube cutting method in which gas is supplied to transfer the porous body to a predetermined position of the tube, and the porous body is cut together with the tube at the position where the porous body is transferred. A tube cutting method using the tube antifouling jig according to any one of claims 1 to 6,
Supplying the gas from the supply hole of the sealing member and transferring the porous body to a predetermined position of the tubular body;
The tubular body cutting method according to claim 7, wherein the porous body is cut together with the tubular body at the predetermined position. A tube cutting method using the tube antifouling jig according to any one of claims 1 to 6,
Passing the linear member through the first through-hole of the porous body,
Passing the linear member through the second through hole of the sealing member;
After attaching the first stopper to the linear member,
Inserting the first stopper and the porous body from the one end of the tubular body;
Attach the sealing member to the one end of the tube and seal the one end,
Supplying the gas from the supply hole of the sealing member and transferring the porous body to a predetermined position of the tubular body;
The tubular body cutting method according to claim 7, wherein the porous body is cut together with the tubular body at the predetermined position. A tube cutting method using the tube antifouling jig according to any one of claims 2 to 6,
Passing the linear member through the first through-hole of the porous body,
Passing the linear member through the second through hole of the sealing member;
Attaching the first stopper to the linear member,
After attaching the second stopper to the linear member,
Inserting the first stopper and the porous body from the one end of the tubular body;
Attach the sealing member to the one end of the tube and seal the one end,
Supplying the gas from the supply hole of the sealing member and transferring the porous body to a predetermined position of the tubular body;
The tubular body cutting method according to claim 7, wherein the porous body is cut together with the tubular body at the predetermined position.