JPH0615901U - Cone rod for rotation support of resin coated tube - Google Patents

Abstract

(57) [Summary] [Purpose] When cutting the tube end coating of a resin coated tube, prevent cutting chips from winding around the rotation supporting cone rod. [Structure] When cutting a tube end coating of a resin-coated tube with a cutting tool, a tray-shaped body that is exteriorly mounted on a truncated cone portion that rotatably supports the tube end is slidably inserted through a rotating shaft of the truncated cone portion,
And a cone rod for rotationally supporting the resin-coated pipe, wherein the tray is pressed so as to be coupled to the truncated cone.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cone rod that rotatably supports a pipe end when cutting a pipe end coating of a resin-coated pipe with a cutting tool.

[0002]

[Prior art]

 The coating of the pipe end of the resin coated pipe is a hindrance when forming the joint part by threading the pipe end of the resin coated pipe or connecting it by welding. Cut off the part with a bite.

The above-described resin cutting of the resin-coated pipe is performed by the following method. That is, as shown in FIG. 2, at the tip of the cylinder rod 21 of the rotatably constructed air cylinder, a truncated cone portion 22 is provided at the tip and is extended from this truncated cone portion 22. A cone rod 24 having a shaft portion 23 is attached. Then, compressed air is supplied to the air cylinder, the cylinder rod 21 is moved forward, and the truncated cone portion 22 of the cone rod 24 is pressed against the tube end 25a of the resin-coated tube 25. Although only one tube end is shown in FIG. 2, the resin-coated tube 25 thus constructed is rotated by a turning roller. Then, a cut 27 is made in the coating 27 at the pipe end by the cutting tool 26 until the raw pipe 28 is reached, and the coating 27 within a certain length from the pipe end is cut and removed.

[0004]

[Problems to be solved by the device]

 However, the above-described conventional method of cutting the tube end coating of the resin coated tube with a cutting tool has the following problems. That is, as shown in FIG. 3, when the coating 27 is cut by the byte 26, the coating waste 29 of the coating 27 is connected in a spiral shape for a long time, and this is wrapped around the shaft portion 23 of the cone rod 24 during cutting, resulting in a cutting obstacle. Therefore, there is a problem that it needs to be removed, and that personnel are needed for that.

There is also a problem in that the work of removing the coating waste must be performed while the cone rod is rotating, and thus is extremely dangerous. Furthermore, there was a problem in that the equipment would break down due to the winding of the coating waste.

This invention has been made in order to solve the above-mentioned problems of the prior art, and since the cutting waste of the coating does not wind around the cone rod, a person who removes the cutting waste is not required. An object of the present invention is to provide a cone rod for supporting rotation of a resin-coated pipe, which does not require unsafe work and can reduce equipment failure.

[0007]

[Means for Solving the Problems]

 The cone rod for supporting rotation of the resin-coated pipe according to the present invention has a tray-shaped body which is externally mounted on the truncated cone portion for rotating-supporting the pipe end when cutting the pipe-end covering of the resin-coated pipe with a cutting tool. The truncated cone is slidably inserted into the rotary shaft of the truncated cone, and the tray is pressed so as to be coupled to the truncated cone.

[0008]

[Action]

 The cone rod for supporting rotation of the resin-coated pipe according to the present invention is used to hold the resin-coated pipe, and when cutting the pipe-end coating with the cutting tool while rotating the resin-coated pipe, the cutting chips of the coating become spiral. It connects for a long time and tries to move in the axial direction of the cone rod. However, since the tray-shaped body that is mounted on the truncated cone of the cone rod is biased so as to connect with the truncated cone, the cutting debris is pushed back to the edge of the cone-shaped cone. Accumulates around the truncated cone. Then, when the cutting work of the coating is completed and the cone rod is retracted, the pressing force of the cutting waste on the tray disappears, and the tray is pushed out in the direction of joining to the truncated cone, so The cutting debris accumulated on the outer circumference of the cone is pushed out by the edge of the tray and can be removed from the cone rod.

[0009]

【Example】

 A cone rod for supporting rotation of a resin-coated tube according to an embodiment of the present invention will be described with reference to FIG. In a cone rod for supporting rotation of a resin-coated tube according to one embodiment of the present invention, a tray 3 which is mounted on a truncated cone portion 2 of a cone rod 1 is slidably inserted into a rotary shaft 4 of the truncated cone portion 2. Has been done. The cylindrical portion 5 of the tray 3 into which the rotary shaft 4 of the cone rod 1 is slidably inserted is attached to the cylindrical portion 5 so as to urge the tray 3 in the direction of connecting to the truncated cone 2. It has an exterior spring 7.

When the cone rod for supporting the rotation of the resin-coated tube according to the one embodiment of the present invention is used to cut off the coating on both ends of the resin-coated tube, the air is configured to be rotatable. The cone rod 1 is mounted on the tip of the cylinder rod 21 of the cylinder, and the tray 3 is slidably mounted on the rotary shaft 4 outside the truncated cone portion 2 of the cone rod 1. Further, the spring 7 is mounted between the tip of the cylinder rod 21 and the tray 3 so as to cover the cylindrical portion 5. Then, compressed air is supplied to the air cylinder, the cylinder rod 21 is moved forward, and the cone portion 2 of the cone rod 1 is pressed against the tube end 25a of the resin coating tube 25. Although only one tube end is shown in FIG. 1, the other is also the same. The resin-coated tube 25 thus formed is rotated by a turning roller (not shown). Then, a cut 27 is made in the coating 27 at the pipe end with the cutting tool 26 until it reaches the raw pipe 28, and the coating 27 within a certain length from the pipe end is cut and removed.

When the coating 27 at the pipe end is cut by the cutting tool 26 while rotating the resin-coated pipe, the cutting scraps 29 of the coating 27 are longly connected in a spiral shape and cut off, and move in the axial direction of the cone rod 1 to push it. And However, the cutting debris 29 is restrained by the edge 6 of the tray 3 which is mounted on the cone rod 1, and the cutting debris 29 pushes against the edge 6 of the tray 3 against the elastic force of the spring 7. However, they are accumulated around the truncated cone portion 2 of the cone rod 1. When the cutting work of the coating 27 is completed and the cone rod 1 is retracted, the force pushing the edge portion 6 of the tray 3 for cutting disappears, and the tray 3 is moved forward by the elastic force of the spring 7. Since it is pushed out, the cutting debris 29 accumulated on the outer peripheral surface of the truncated cone part 2 is also pushed out and can be removed from the cone rod 1.

[0012] By using the rotation-supporting cone rod of the resin-coated pipe according to one embodiment of the present invention, by cutting the coating on both pipe ends of the resin-coated pipe, the cutting chips of the coating are not wound on the cone rod. Since there is no such thing, there is no need for personnel to remove cutting chips, there is no need to perform unsafe work, and equipment failures can be reduced.

[0013]

【The invention's effect】

 According to the present invention, it is possible to eliminate the need for a person to remove the coating waste, eliminate the need for unsafe work, and reduce equipment failures.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a state in which a resin coated tube is held by a rotation supporting cone rod of the resin coated tube of the present invention and the coating is cut by a cutting tool.

FIG. 2 is a vertical cross-sectional view showing a state in which the coating is cut with a cutting tool while the resin-coated tube is held by a rotary support cone rod of a conventional resin-coated tube.

FIG. 3 is an explanatory view showing a state in which cutting waste is wrapped around a shaft portion of a cone rod.

[Explanation of symbols]

 1 Cone Rod 2 Cone Rod Cone Rod 3 Cone Body 4 Cone Rod Rotation Axis 5 Cylinder Cone Body 6 Edge of Cone Body 7 Spring

Claims (1)

[Scope of utility model registration request] 1. When removing the tube end coating of a resin-coated tube with a cutting tool, a tray-shaped body that is externally mounted on a truncated cone portion that rotatably supports the tube end is slidably inserted into the rotary shaft of this truncated cone portion. And a cone rod for supporting rotation of the resin-coated pipe, wherein the tray is pressed so as to be coupled to the truncated cone.