JP5351497B2 - Processing method of pipe in three dimensions - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and device for machining pipes in a three-dimensional direction which is suitable for three-dimensional machining of a small number of pipes, which does not require a large area for an installation place or a working area, and which can be operated at low running cost. <P>SOLUTION: The heated and softened pipe 11 is held by a pair of steel strips 17 and 18 which form a U-shaped guide member 14 arranged on a plate-like member 13 so as to be bent in a U shape in a two-dimensional direction. Thereafter, both hooks 21 and 21 of fixed parts 15 are raised for bending in the three-dimensional direction. A cross rail 22 is inserted for attaching across a hook 21 and both hooks 21 and 21. Both ends of the pipe 11 is held and raised to a desired height position (angle) for bending. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

The present invention relates to how to process the pipe into a three-dimensional direction.

  In general, when a pipe is processed in a three-dimensional direction, as shown in Patent Document 1, an X-axis slide portion to be driven is arranged horizontally as power for a bending apparatus, and the X-axis slide portion is crossed in a horizontal plane. The Z-axis slide part 9 that can be driven in the vertical direction is attached to the tip side of the arm, and the Y-axis slide part that moves horizontally is provided at the lower end of the Z-axis slide part, and is bent three-dimensionally. In order to follow the change in the angle of the tube in the length direction, a horizontal roller that can be moved up and down in the Z-axis direction via a horizontal rotation mechanism at the center of the Y-axis slide part and vertically below both left and right sides of the horizontal roller A head mechanism equipped with spherical universal bearings or vertical rollers facing each other is attached, and it is operated in an integrated structure that can freely follow the bending trajectory of the tube to be three-dimensionally bent in three axial directions. In this way, one that can perform three-dimensional bending at high speed has been proposed.

However, with such a device, there is a problem that not only the structure of the processing apparatus is complicated and large and expensive, but also a large area is required for the installation place and work range.
In addition, the running cost is increased along with the initial cost, which is not suitable for three-dimensional processing of a small number of pipes.
JP 2007-223043 A

The present invention has been proposed in view of the above-described problems, and does not require a large area in the installation location or work range, has a low running cost, and is suitable for three-dimensional processing of a small number of pipes. it is an aim to be able to provide the processing how.

  In order to achieve the above object, the pipe processing method according to the present invention in the three-dimensional direction is formed into a U-shaped two-dimensional direction after forming a pipe softened by heating in a two-dimensional direction. The main feature is that the portion is fixed and the end of the pipe is bent in a three-dimensional direction.

  The method of processing the pipe in the three-dimensional direction is characterized in that when the pipe is heated, the shape retaining member is filled in the heated pipe portion.

  According to the three-dimensional processing method of the pipe according to the present invention, after molding the pipe softened by heating in the U-shaped two-dimensional direction, fixing the portion formed in the U-shaped, The pipe can be machined in the three-dimensional direction with a simple operation of bending the end of the pipe in the three-dimensional direction. Thereby, since it can process quickly and easily and can be performed cheaply, the processing method suitable for a small number of processes can be provided.

  In addition, in the processing method of the pipe in the three-dimensional direction, when the pipe is heated, the shape of the pipe part to be heated is filled with a shape-retaining member. There is an advantage that a pipe processed in a direction can be formed.

Hereinafter, the most preferred embodiment of a method and apparatus for processing a pipe in a three-dimensional direction according to the present invention will be described with reference to the drawings.
FIG. 1 shows an exploded view of an example of a fruit collecting device using pipes processed in a three-dimensional direction. In FIG. 1, reference numeral 1 denotes an entire fruit collecting device.
This collecting device 1 includes a U-shaped tip portion 2 bent upward in a three-dimensional direction, a frame body 4 fixed above the flange portion 3, and a frame body 4. A loading case 5 to be placed and a tow rope 6 made of a rope for pulling the eaves portion 3 are provided.

The collection case 5 is formed in the shape of a square container having an upper end formed with an opening 7 by wooden board material or synthetic resin molding.
The frame 4 on which the collection case 5 is placed is an L-shaped steel frame that is quadrangular so that the bottom of the collection case 5 is fitted externally, and the end of the L-shaped steel that protrudes at four locations around it. A mounting hole 8 is formed in the portion, and a bolt 9 protruding from the upper surface of the flange portion 3 to be described later is inserted into the mounting hole 8, and the nut 10 is screwed to tighten the frame body 4 into the flange portion. 3 is fixed.

In the flange portion 3, an intermediate portion of a vinyl chloride pipe (hereinafter simply referred to as a pipe) 11 is formed in a U shape, and the tip portion 2 of the U shape is bent in a three-dimensional direction. The forming method and apparatus are as shown in FIGS.
FIG. 2 is a plan view of the processing device 12 in the three-dimensional direction, and FIG. 3 is a side view thereof.
In the figure, reference numeral 13 denotes a base made of a plate material such as a plywood. A guide member for bending processing (U-shaped guide portion) 14 in a two-dimensional direction and a guide member for bending processing are provided on the upper surface portion of the base 13. A fixing portion 15 for bending processing in a three-dimensional direction is disposed on the base 13 on both side portions of 14, and the bending means guide member 14 and the bending processing fixing portion 15 form molding means. 16 is formed.

The guide member 14 for bending in the two-dimensional direction is configured by fixing a pair of strip-shaped steel plates 17 and 18 formed in a U shape to the upper surface of the base 13 by fixing means 19 such as screws.
Here, the U-shape referred to in the present invention includes a gentle arc shape such as the outer strip-shaped steel plate 18, as can be seen in FIG.
And the fixing | fixed part 15 for the bending process to a three-dimensional direction is the saddle member 21 attached to the pivotal support member 20 fixed to the base | substrate 13 so that up-and-down rocking | swiveling is possible, and both saddle type members 21 * 21. And a horizontal crosspiece 22 to be mounted over.

Next, a procedure for bending the pipe 11 in the three-dimensional direction using the three-dimensional processing device 12 configured as described above will be described.
First, although not shown in the drawing, at least a portion to be processed of the pipe 11 to be processed is filled with a shape retaining member made of sand or the like.
Next, the processed portion filled with the shape-retaining material is heated by the heating means 23 as shown in FIG. 4 to soften the portion.
Although the detailed illustration of the heating means 23 is omitted, the heating means 23 is formed by providing a tube 25 that is supported by an installation base 24 and has a heating wire inside.

The pipe 11 heated and softened by the heating means 23 is softened in a two-dimensional direction so as to be sandwiched between a pair of strip-shaped steel plates 17 and 18 that form the guide member 14 of the processing device 12. To compose.
Then, as shown in FIG. 3, the pipe 11 bent in the U shape in the two-dimensional direction is placed on the base, and the both-side members 21 of the fixing portion 15 for bending processing in the three-dimensional direction are used. 21 is raised, and the crosspiece 20 is inserted across the two saddle-shaped members 21 and 21 as shown in FIG.

Thereafter, the pipe 11 is held at both ends and lifted to a desired height position (angle) and bent, and then the crosspiece 22 is removed, the bending of the pipe 11 in the three-dimensional direction is completed.
The pipe 11 that has been bent in the three-dimensional direction is taken out of a shape-retaining member such as sand filled in at least a portion to be processed.
Incidentally, the shape-retaining member filled in the pipe 11 made of sand or the like is from heat storage to the bending process from the U-shape in the two-dimensional direction to the bending process in the three-dimensional direction. It also acts to maintain the flexibility of the processed portion of the pipe 11.

In the above-described embodiment, the heating means 23 is supported by the installation base 24 and is formed by providing the tube 25 with the heating wire inside, but the present invention is not limited to this, and a gas burner, etc. It goes without saying that it can be heated with a flame of the same.
In addition, when heating means 23 is heated by a flame such as a gas burner, it goes without saying that the pipe is not limited to a synthetic resin pipe such as vinyl chloride, but can also be applied to processing a metal pipe. It is.

FIG. 3 is an exploded perspective view of a fruit collection device using a pipe three-dimensionally processed by a pipe three-dimensional processing apparatus according to the present invention. These are top views of the apparatus which processes the pipe concerning this invention to a three-dimensional direction. These are side views of the apparatus which processes the pipe concerning this invention to a three-dimensional direction. These are the perspective views of the state currently heated with the heating means before processing with the processing apparatus to the three-dimensional direction of the pipe concerning this invention. These are side views of the process which processes a pipe to a three-dimensional direction with the processing apparatus to the three-dimensional direction of the pipe concerning this invention.

DESCRIPTION OF SYMBOLS 11 ... Pipe 12 ... Three-dimensional processing apparatus 14 of a pipe ... U-shaped guide part 15 ... Fixing part 19 ... Molding means 23 ... Heating means

Claims (2)

  After the heated and softened pipe was molded in the U-shaped two-dimensional direction, the U-shaped part was fixed, and the end of the pipe was bent in the three-dimensional direction. A processing method for pipes in the three-dimensional direction.   2. The method of processing a pipe in a three-dimensional direction according to claim 1, wherein when the pipe is heated, a shape-retaining member is filled in the heated pipe portion.

Images