KR940006359Y1 - Crease pipe making device - Google Patents

Abstract

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Description

Continuous Ring Pitch Corrugated Pipe Forming Machine

1 is a perspective view of an apparatus for forming a corrugated pipe.

2 is a schematic view showing a conventional spiral machining state.

3 is a schematic view showing a ring pitch processing state of the present invention.

* Explanation of symbols for main parts of the drawings

1: methyl strip supply 2: tube former

3: welding torch 4: clamp type capstan

5: tension reel 6: waveformer

7: spiral corrugated pipe 8: ring pitch corrugated pipe

9: spiral crimping tool 10: smooth pipe

11: forming ring

The present invention relates to a corrugated pipe forming apparatus, and more particularly to a continuous ring pitch wrinkle pipe forming apparatus for molding the shape of the corrugation into a continuous ring pitch.

In general, pipes, particularly metal pipes, have high strength and good heat transfer rate and are widely used as structural and piping materials.

However, since the rigidity is so high that the flexibility can not be used to bend the pipe arbitrarily, it should be constructed using the pipe connector of the "L", "T", "Y" shape.

Such a pipe connection method is a regular and accurate design is a very useful method, but when it is installed in an irregular site, it is necessary to bend it easily.

In order to improve the bending properties of such pipes themselves, recently spirally corrugated pipes have been developed.

However, the spiral corrugated pipe is easy to manufacture, but the cost is an advantage, but there is a problem in that it requires a special plumbing device is difficult to process the connecting portion during construction. That is, as shown in FIG. 1, the conventional spiral corrugated pipe forming apparatus includes a metal strip supply 1 for supplying flat metal tape, and a tube former for rolling the planar tape round. 2) a welding torch (3), which is round and molded to weld the tape ends, a clamp type capstan (4) that pulls the welded pipe at a constant speed, and a spiral to the smooth pipe (10). It consists of a corrugator 6, which corrugates, and a take-up reel 5, which winds up the finished product, so that a smooth pipe as shown in FIG. When 10) proceeds at a constant speed, the eccentric forming ring 11 is rotated in the circumferential direction while pressing the pipe strongly, so that it is processed into a spiral corrugated pipe 7 having a constant pitch.

The pipe 7 thus processed has a good flexibility, but when connecting the pipe end with another pipe, it is difficult to process the connection portion, there is a problem that a special connection device must be used.

The object of the present invention is to solve the above problems, by providing a spiral corrugated tool having a helical angle instead of the forming ring of the corrugator, which is a component of the conventional spiral corrugated pipe, the spiral corrugated tool around the pipe It is to provide an apparatus for forming a continuous ring pitch in a pipe by the relative motion of the pipe and the spiral corrugated tool by rotating (clockwise) and rotating (clockwise).

Therefore, the present invention makes the spiral pipes rotate or rotate (clockwise) while keeping the helical crimping tool tightly in contact with the pipe when the smooth pipe is advanced at a constant speed in the corrugator. By processing the pipe to have a cross section, the ring-shaped corrugation is continuously formed on the pipe.

Hereinafter, described in detail with reference to the drawings.

As shown in FIG. 3, whenever the spiral corrugation tool 9 having a constant inclination angle and pitch rotates around the pipe, the pipe 10 is conveyed proportionally by the pitch of the spiral corrugation tool 9. ) And the ring pitch corrugated pipe 8 is formed by the relative motion of the spiral corrugated tool 9.

Referring to the above operation in more detail as follows.

The spiral corrugated tool 9 having the above-mentioned constant inclination angle and pitch rotates clockwise as shown in the drawing, and the spiral corrugated tool 9 which performs the rotating motion is shown in the figure as shown in the drawing. 10) As the pipe 10 moves in proportion to the pitch of the spiral corrugated tool 9 when revolving around the pipe 10, the pipe 10 and the spiral corrugated tool 9 form a ring-shaped corrugation by relative movement. A ring pitch corrugated pipe 8 to be formed is formed.

As described above, the ring pitch corrugated pipe processed according to the present invention has a concentric circular cross-section even if any part is cut in the axially perpendicular direction, so that the pipes are easily connected to each other, and thus the piping work is very economical.

Claims (1)

A metal strip supply 1 for supplying a planar metal tape; A tube former 2 which rolls up a flat tape; A welding torch (3), which is formed in a round shape and welds the ends of the tape to each other; A clamped capstan 4 for pulling the welded pipe at a constant speed, and a corrugator 6 for spirally crimping the smooth pipe; And a tensile pipe (5) configured to wind the finished product, wherein the corrugator (6) has a helical corrugated tool (9) having a spiral constant inclination angle and pitch to smooth the pipe ( When 10) proceeds in the corrugator 6, the spiral corrugated tool 9 rotates clockwise while keeping the spiral corrugated tool 9 in close contact with the pipe 10 and simultaneously clocks around the pipe 10. A continuous ring pitch corrugated pipe forming apparatus, characterized by continuously forming a ring-shaped corrugation in a pipe by rotating the pipe so that the pipe always has a concentric cross section in an axially perpendicular direction.