JPS627320A - Cutter for corrugated metal pipe - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Background and Objects of the Invention] The present invention relates to a cutting device for corrugated metal tubes, and particularly to a cutting device for corrugated metal tubes containing cables.

Corrugated metal tubes are used for cable protection, high frequency coaxial cables, and other applications, and are made of copper, iron, aluminum,
There are stainless steel and various other items.

Depending on the product, the inside of the metal tube may be hollow, but the gap between the metal tube and the cable is 1!11!, such as when enclosing an electric cable. Some are about r1. Among these corrugated metal tubes, it may be necessary to remove the corrugated metal tubes during the manufacturing process of the corrugated metal tubes containing the electric cables.

When enclosing an electric cable in this way, the gap between the metal tube and the cable is small, making it impossible to handle the cable. Conventionally, the side of the metal tube was cut lengthwise with a diamond cutter, etc., and then cut manually. It was peeling off metal pipes as if they were being torn apart. Therefore, there is a risk of damaging the cable inside the metal tube when cutting with a cutter, and the work speed is slow, and the work of peeling off the cut metal tube is laborious and dangerous.

For example, Utility Model Publication No. 57-118619, Utility Model Publication No. 56-806
21, No. 55-40681, and No. 55-2235 disclose this type of device.

SUMMARY OF THE INVENTION An object of the present invention is to provide a cutting device for corrugated metal tubes that eliminates the drawbacks of the prior art described above, significantly shortens cutting time, and improves safety for products and human bodies.

[Summary of the Invention] The present invention provides a corrugated metal tube cutting device that continuously cuts a corrugated metal tube that includes a cable cable in its length direction. a pair of left and right electric cutters arranged perpendicular to the length direction of the , a pair of left and right detectors for detecting a gap between the corrugated metal tube, a movable table for holding the pair of electric cutters, and a movable table for holding the pair of electric cutters; It has an electric motor that moves the table, a control device that controls the electric motor and the detector, and a winding drum that peels off and winds up the cut portion of the corrugated metal tube after cutting the corrugated metal tube. It was designed to achieve the intended purpose.

[Embodiments of the invention] An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

FIG. 1 is a top plan view of an embodiment of the corrugated metal tube cutting device of the present invention, and FIG.
It is a side view seen from a line. The same reference numerals are used for the same parts in FIGS. 1 and 2.

In these figures, 1 is a corrugated metal tube, 2 is a roller that supports the corrugated metal tube (hereinafter referred to as metal tube) 1, and 3.3'
is an electric cutter used to cut the metal tube 1, and is arranged perpendicular to the length direction of the metal tube 1. Reference numerals 4 and 4' designate cutter parts, and reference numerals 5 and 5- designate movable bases for the electric cutters 3 and 3-, which fix the electric cutters 3.about.3-, and move in the direction of the metal tube 1 on the left and right, respectively. 6, 6' are control motors for moving the moving tables 5, 5-, 7, 7- are electric cutters 3゜3'',
The base supports the movable bases 5, 5- and the motors 6, 6-, and has a structure that does not cause play between the movable bases 5, 5- as the movable base 5.5- moves. 8, 8- is a frame supporting the base 7.7', 9 is a motor, and the frame 8, 8'
It is installed so that it becomes one with the The following mounts 8, 8
- and the part installed on the pedestal 8.8- is called the cutting part.

This cutting part is cut by the drive of the motor 9.
The mechanism is such that it runs on wheels 11.11-. 12.12- is a sensor that detects the gap between the metal tube 1 and is installed perpendicularly to the length direction of the metal tube 1, and also serves as a guide for the metal tube 1. It's irritating. 13.13- is a control device that controls the sensor 12 according to the output signal of the sensor 12.12''.
12-, and at the same time the electric cutter 3.3- follows the movement of the sensors 12, 12-.
Give commands to 6-. The sensor 12.12' and the control device 13.13 are mounted in the vicinity of the cutter 4.4- in the direction of cutting progress (in the direction of the arrow). In addition, the sensor '12.12- detects an object attached to the side surface of the electric cutter 3, 3-, for example, a magnet, and
A stop switch 14.14'' is provided for giving a command to the motor 6.6' to stop the movement of the motor 6.6'.
is a drum for peeling off and winding the metal tube after it has been cut at the cutting part of the metal tube 1;
, 10-. The drum 15 uses a mechanism that rotates in conjunction with the rotation of the motor 9. 16°16' is a connecting rod, and the drum 15 is connected to the metal pipe 1.
The frames 8, 8- and the drum 15 are fixed so that they run together with the cutting section of the drum 15. 17. Reference numeral 17- is a bearing portion of the drum 15, and 18 is a mounting portion for winding the cut portion of the metal tube 1 around the drum 15.

The cutting section for the metal tube 1 of this embodiment operates as follows.

That is, the corrugated metal tube 1 is placed on the roller 2 after being straightened. Drives the motor 6.6- and the movable table 5.5--therefore the electric cutters 3, 3-, the cutter 4--.
, 4- are advanced in the direction of the metal tube 1, and the cutters 4, 4- are moved forward in the direction of the metal tube 1.
When the motor 6 reaches the position where it can cut the metal tube 1, the motor 6,
6- Stop. The position where the cutters 4, 4- can cut the metal tube 1 is detected by the output signals of the sensors 12, 12=.

Now, the sensors 12, 12' move forward in the direction of the metal tube 1 under the command of the control device 13-13-, and at the same time the motor 6.
6' is activated and the electric cutter 3°3-1 and therefore the cutters 4 and 4- move forward following the sensor 12°12', the tip of the sensor 12°12- contacts the metal tube 1, Once the output signal has been generated, the control device 13.13'' compares this output signal with a reference value provided in the control device 13.13'', detects that a certain value has been reached, and activates the sensor 12°12'. Stop progress. -Banrai power vine 3゜3- is sensor 12
, 12-, the cutters 4, 4' can cut the metal tube 1 by the stop switch 14.14''.
When the switch 14.14- is reached, the switch 14.14- closes, giving a stop signal to the motor 6゜6-, and the electric cutter 3, 3-1
Therefore, the advance of the cutters 4, 4- is stopped.

In this way, the sensor 12.12'' and the cutter 4°4' operate in conjunction with each other, but the above reference value with which the output signal of the sensor 12.12' is compared, the stop switch 14.14' and the electric cutter 3, The position of the detection object attached to 3' is adjusted in advance to an optimum value.

During the cutting operation, the control device 13.13'' is connected to the sensor 12.12.
- If the output signal of - does not reach the reference value, the sensors 12, 12
The sensors 12 and 12' are controlled so that the electric cutters 12 and 12' are moved forward and moved backward when the reference value is exceeded, and the electric cutters 3 and 3' are also controlled to operate following the sensors 12 and 12-. It moves forward and backward in the same way as the sensors 12, 12'', but stops when it reaches the position of the stop switch 14.14-.

In this way, the position of the cutters 4, 4', i.e. the cutter biting feet, can be adjusted to avoid damage to the internal cables.

When the cutters 4, 4- are ready to cut the metal tube 1, the electric cutters 3, 3- are rotated to start cutting.

Next, the motor 9 is driven in synchronization with the start of cutting, and the frame 8.8 is
"t, Therefore, the cut part of the metal tube 1 is moved on the rail 10°10- in the length direction of the metal tube 1, and the metal tube 1 is
are cut continuously.

Next, after cutting the metal tube at the cutting section of the metal tube 1, the operation of peeling off and winding the metal tube 1 is as follows.

While the cutters 4, 4' cut the metal tube 1, the cut portion of the metal tube 1 travels on the rail 10, 10', and the drum 15
travels together with the cut part of the metal tube 1, and when it reaches the position determined by the connecting rod 16. Fixed to.

If cutting and running continue in this manner, the metal tube 1 will be cut and at the same time the cut portion will be torn off and wound up. In this case, the enclosed cables and the lower half of the cut metal tube are pushed down.

The above is the operation of the apparatus for cutting the corrugated metal tube containing the cable and for processing the cut metal tube.

As mentioned above, in the cutting device for corrugated metal pipes,
Most of the cutting work for corrugated metal pipes, which was previously done manually, has now been automated, making it possible to cut metal pipes continuously, and the cutting status can be constantly detected and controlled, greatly improving work efficiency. can contribute.

[Effects of the Invention] According to the present invention, in a corrugated metal pipe cutting device, the above-mentioned cutting work that conventionally relied mainly on human power can be improved.
It can shorten work time and significantly improve product and human safety.

[Brief explanation of the drawing]

FIG. 1 is a top plan view of an embodiment of the corrugated metal tube cutting device of the present invention, and FIG.
It is a side view seen from a line. DESCRIPTION OF SYMBOLS 1...Corrugated metal tube, 2...Roller, 3.3-...Electric cutter, 4.4-...Cutter part, 5.5' moving table, 6.6-...Control 7.7'...base, 8,8'...frame, 9...drive motor, 10.10'...rail, 11.1'l=...wheel, 12. 12=...sensor, 13.13'...control device, 14.14-...switch, 15...drum, 16.16"...connecting rod. Agent: Patent attorney Fujio Sato I military 2 concave

Claims (1)

[Claims] (1) In a corrugated metal tube cutting device that continuously cuts a corrugated metal tube enclosing a cable or the like in its length direction, the corrugated metal tube is perpendicular to the length direction of the corrugated metal tube. a pair of left and right electric cutters arranged in a direction, a pair of left and right detectors that detect a gap between the corrugated metal tube, a moving table that holds the pair of electric cutters, and an electric motor that moves the moving table; A corrugated metal comprising: a control device that controls the electric motor and the detector; and a winding drum that peels off and winds up the cut portion of the corrugated metal tube after cutting the corrugated metal tube. Pipe cutting device.