JPS6010832Y2 - Synthetic resin pipe joining machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a synthetic resin pipe joining machine that heats and butts the ends of synthetic resin pipes.

When butt-joining synthetic resin pipes, align the pipe axes of the pipes to be joined, chamfer the ends of the pipes as necessary, and perform heat melting to prevent the melted ends of the pipes from shifting. It is necessary to butt and join.

Conventionally, synthetic resin pipe joining machines used to butt join synthetic resin pipes have not been designed to match the pipe axes of the pipes to be joined or to sufficiently secure the pipes to be joined. However, there were disadvantages in that the joints were misaligned and the joints were not sufficiently bonded.

The present invention was made with the aim of eliminating the drawbacks of the conventional ones such as those described above. A pedestal and a movable clamp are movably attached on the track, a tube end heater is removably placed on the pedestal, and a through hole for inserting a tube to be butted and joined to the clamp and the movable clamp, respectively. A plurality of pipe fasteners are screwed around the wall of the through hole at equal intervals S with their tips protruding inward, and an elastic body is attached to the tips of the pipe fasteners. The synthetic resin pipe joining machine consists of:

Hereinafter, the present invention will be explained with reference to an embodiment of the drawings.

1 is a support stand.

Two shafts 2 are arranged in horizontal parallel on a support base 1, and the shafts 2 are fixed to the support base 1 by supports at both ends.

The legs of a fixing clamp 3 for fixing a tube to be joined to the shaft 2 are inserted and fixed.

A pedestal 4 is attached to the fixed clamp 3 side in the middle of the shaft 2 so as to be movable in the axial direction of the shaft 2, and a tube end heater 5 and a tube end finisher (not shown in the drawings) are attached to and removed from the pedestal 4. It is placed so that it can be done.

Adjacent to the pedestal 4 attached to the middle of the shaft 2 and on the opposite side from the fixed clamp 3, the legs of another movable clamp 6 for fixing the tube to be joined are movable in the axial direction of the shaft 2. It is attached.

An air cylinder 7 is provided at the other end of the shaft 2, and as the arm of the air cylinder 7 moves, the movable clamp 6 is moved back and forth.

The movable clamp 6 can also be moved manually by operating the handle 10.

The fixed clamp 3 and the movable clamp 6 are each provided with a through hole for inserting a tube to be butt-joined, and the upper part of the wall surrounding the through hole is openable and closable to facilitate attachment and detachment of the tube to be joined. It is designed so that a tube can be inserted.

Note that 11 is a handle, and 12 is a fixing bolt.

Further, around the walls of the through holes of the fixed clamp 3 and the movable clamp 6, a plurality of pipe fasteners 8, 8 and 8 are arranged at equal intervals S.
...is screwed on with its tip protruding inward.

These pipe fasteners 8, 8, . . . are preferably provided on opposite sides of the fixed clamp 3 and the movable clamp 6 in order to facilitate adjustment of the relative positions of the pipe ends of the pipes to be joined.

In addition, an annular ring 9 that fills the gap between the wall of the through hole and the pipe to be joined, excluding the pipe clamping tool 8°8... of each of the fixed clamp 3 and the movable clamp 6, is removably attached to the through hole portion. It is installed.

By preparing various annular rings 9 with different inner diameters, it is possible to hold tubes of various sizes.

An elastic body 81 made of Teflon or the like is attached by baking to the tips of the tube fasteners 8, 8, . . . in order to firmly tighten and fix the tubes to be joined without damaging the outer surfaces thereof.

Next, a manner of use when butt-joining synthetic resin pipes using the synthetic resin pipe joining machine according to an embodiment of the present invention will be described.

Close the tops of the fixed clamp 3 and the movable clamp 6, set the pipes to be joined into them so that the ends of the pipes protrude slightly, close the tops of each to stop the top and bottom, and then tighten each pipe. The pipes to be joined are fixed to the fixed clamp 3 and the movable clamp 6, respectively, by adjusting the degree of screwing of the fittings 8, 8, . . . so that the pipe axes of the pipes to be joined match each other.

Set the tube end finisher on the pedestal 4 between the fixed clamp 3 and the movable clamp 6, turn the handle 10 to move the pedestal 4 and the movable clamp 6 toward the fixed clamp 3, and join them. Each tube end surface of the tube is placed against the cutter of the tube end finisher, and the cutter is rotated to chamfer each tube end surface so that it is perpendicular to the tube axis.

Next, remove the tube end finisher from the pedestal 4, and then turn the handle 10 to butt the end surfaces of the tubes to be joined together, and check to see if there is any misalignment between them. At this time, the pipe axes are matched using the pipe clamps 8, 8, and then the movable clamp 6 is moved back.

Then, a pre-heated tube end heater 5 is set on the pedestal 4, the air cylinder 7 is activated, and the arm moves the pedestal 4 and movable clamp 6 toward the fixed clamp 3, and the pipes to be joined are connected. After each tube end surface is pressed against the heating plate surface of the tube end heater 5 for a predetermined period of time and at a predetermined pressure, the arm of the air cylinder lidder 7 is moved back, the tube end heater 5 is removed from the pedestal 4, and the air cylinder is placed again. After moving the arm of the lidder 7 forward and pressing the molten end surfaces of the tubes to be joined together with a constant pressure for a certain period of time, the arm of the air thin lidder 7 is moved back and left to cool for a certain period of time. The butt joint is finished.

In this way, when heating and joining the tube ends, the air thin lidder 7 is used to press with a constant pressure instead of manual operation by operating the handle 10, and if the air thin lidder 7 is operated with a timer, a predetermined pressure is applied. It is convenient because it can be activated automatically.

As described above, in the synthetic leather resin pipe joining machine of the present invention, a pedestal on which a tube end heater is removably placed on the clamp and a movable clamp are movable, and the clamp and the movable clamp each have a A through hole is provided for inserting the pipe to be butt-jointed, and a plurality of pipe fasteners are screwed at equal intervals around the wall of the through hole with their tips protruding inward to tighten the pipe. Since an elastic body is attached to the tip of the tool, it is possible to easily align the tube axes of the tubes to be joined, and to firmly fix and join them. There is no risk that it will not be carried out.

[Brief explanation of drawings]

FIG. 1 is a front view of the synthetic leather pipe joining machine of the present invention, FIG. 2 is an enlarged front view of the main part of FIG. 1, and FIG. 3 is a left side view of FIG. 2. Explanation of symbols: 1...Support stand, 2...Shaft, 3...Fixing clamp, 4...
cradle, 5... tube end heater, 6... movable clamp, end... pipe tightening tool.

Claims (1)

[Claims for Utility Model Registration] 1. A pedestal and a movable clamp are movably attached to a clamp provided on a support pedestal on a track provided on the pedestal, and a pipe end is attached to the pedestal. A heater is removably placed therein, and the clamp and the movable clamp are respectively provided with through holes for inserting tubes to be butt-jointed, and a plurality of tube fasteners are arranged at approximately equal intervals around the wall of the through hole. A synthetic resin pipe joining machine in which a tool is screwed with its tip protruding inward, and an elastic body is attached to the tip of the pipe fastener. 2. A synthetic resin pipe joining machine as set forth in claim 1 of the utility model registration claim, in which a pipe fastener is provided on opposing sides of a clamp and a movable clamp. 3. A synthetic resin pipe joining machine according to claim 1 or 2 of the utility model registration claim, in which the upper parts of the clamp and the movable clamp can be opened and closed to allow pipes to be inserted.