JPH0310430B2 - - Google Patents
Info
- Publication number
- JPH0310430B2 JPH0310430B2 JP25377385A JP25377385A JPH0310430B2 JP H0310430 B2 JPH0310430 B2 JP H0310430B2 JP 25377385 A JP25377385 A JP 25377385A JP 25377385 A JP25377385 A JP 25377385A JP H0310430 B2 JPH0310430 B2 JP H0310430B2
- Authority
- JP
- Japan
- Prior art keywords
- cutting machine
- gas cutting
- detection device
- photoelectric
- photoelectric detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 21
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Auxiliary Devices For Machine Tools (AREA)
- Laser Beam Processing (AREA)
- Arc Welding In General (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、レール上を走行する門型フレームに
装備されたガス切断機の安全装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a safety device for a gas cutting machine equipped on a gate-shaped frame running on rails.
（従来の技術）
第４図〜第６図は従来のガス切断機の安全装置
を示すものである。図中１はレール、２はこのレ
ール１上を走行する門型フレームに装備されたガ
ス切断機、３はその車輪、４は走行用モータ４で
ある。(Prior Art) FIGS. 4 to 6 show a conventional safety device for a gas cutting machine. In the figure, 1 is a rail, 2 is a gas cutting machine mounted on a gate-shaped frame that runs on the rail 1, 3 is its wheels, and 4 is a running motor 4.
また５は光電ビーム発進器５ａとその受信器５
ｂとよりなる光電検知装置で、第５図および第６
図では、ガス切断機２の前後においてそれぞれ２
組の光電検知装置５が上下に配置されており、そ
して各光電検知装置５の光電ビーム５ｃがそれぞ
れガス切断機２の走行路を横断するように設置さ
れている。また第４図中の６は電磁継電器で、５
ｄは光電検知装置５の出力接点である。そして光
電検知装置５の光電ビーム５ｃがさえぎられた時
に、その出力信号５ｄが電磁継電器６をしや断す
る。その継電器６の接点信号を利用することによ
つて走行用モータ４を停止させるようになつてい
る。 Further, 5 is a photoelectric beam emitter 5a and its receiver 5.
A photoelectric detection device consisting of b and Fig. 5 and 6.
In the figure, there are two
The sets of photoelectric detection devices 5 are arranged one above the other, and the photoelectric beams 5c of each photoelectric detection device 5 are installed so as to cross the travel path of the gas cutting machine 2, respectively. Also, 6 in Figure 4 is an electromagnetic relay, and 5
d is an output contact of the photoelectric detection device 5. When the photoelectric beam 5c of the photoelectric detection device 5 is interrupted, the output signal 5d cuts off the electromagnetic relay 6. The travel motor 4 is stopped by using the contact signal of the relay 6.
（発明が解決しようとする問題点）
上述のように従来の装置では、光電検知装置５
がガス切断機２の走行方向の前後に配置されてい
るため、例えば作業員がガス切断機２の信号方向
の反対側に入つて、その後方の光電検知装置５の
光電ビーム５ｃをさえぎつた場合でも安全装置が
作動してガス切断機２が停止することになつた。(Problems to be Solved by the Invention) As described above, in the conventional device, the photoelectric detection device 5
are arranged before and after the gas cutting machine 2 in the running direction, so for example, if a worker enters the opposite side of the gas cutting machine 2 in the direction of the signal and blocks the photoelectric beam 5c of the photoelectric detection device 5 behind it. However, the safety device was activated and gas cutting machine 2 was stopped.
すなわちこのような場合は安全上ガス切断機２
を停止させる必要はないのであるが、従来の装置
にはガス切断機２の進行方向を判別する手段がな
かつたため、安全装置が過剰に反応して、作業員
に危害を加えるおそれのない場合でもガス切断機
２を停止させていたのである。 In other words, in such a case, for safety reasons, use gas cutting machine 2.
There is no need to stop the gas cutting machine 2, but because the conventional equipment did not have a means to determine the direction in which the gas cutting machine 2 was moving, the safety equipment could overreact and cause danger to the operator even when there was no risk of harm. The gas cutting machine 2 had been stopped.
そしてガス切断機２が不必要な場合でも停止す
ると、それだけ作業能率が悪くなる上に、ガス切
断中の停止によつて、その停止個所の切断面が悪
化するため、その部分の手直しを余分に必要とし
たり、製品の品質を低下させるという問題点があ
つた。 If the gas cutting machine 2 stops even when it is not necessary, the work efficiency will decrease accordingly, and if the gas cutting machine 2 stops during gas cutting, the cut surface at the stopped point will deteriorate, making it unnecessary to rework that part. There were problems in that it made the product unnecessary or degraded the quality of the product.
（問題点を解決するための手段）
上述の問題点を解決するため本発明において
は、レール上を走行するガス切断機の走行方向の
前後に、その走行路を横断するように光電ビーム
発信器として受信機とより成る光電検知装置を配
置し、ガス切断機が走行中に前記光電検知装置の
光電ビームがさえぎられた場合に、これを検知し
てガス切断機を停止させる装置において、ガス切
断機の進行方向を判別する手段を設けて、その進
行方向側の光電検知装置のみを有効に作用させる
ようにしてガス切断機の安全装置を構成する。(Means for Solving the Problems) In order to solve the above-mentioned problems, in the present invention, photoelectric beam transmitters are installed so as to cross the running path of the gas cutting machine that runs on the rail, before and after the running direction of the gas cutting machine. A gas cutting machine is equipped with a photoelectric detection device consisting of a receiver, and when the photoelectric beam of the photoelectric detection device is blocked while the gas cutting machine is running, the device detects this and stops the gas cutting machine. A safety device for a gas cutting machine is constructed by providing a means for determining the direction of movement of the machine and effectively operating only the photoelectric detection device on the side of the direction of movement.
（作用）
上述のように本発明においては、ガス切断機の
進行方向を判別する手段を設けて、その進行方向
側の光電検知装置のみを有効に作用させるように
したから、ガス切断機の進行方向側に例えば作業
員が入つたりして、その進行方向側に設けた光電
検知装置の光電ビームをさえぎつた時にのみガス
切断機が停止して安全を確保する。そしてガス切
断機の進行方向の反対側に作業員がたとえ入つて
もガス切断機は停止しない。(Function) As described above, in the present invention, a means for determining the traveling direction of the gas cutting machine is provided, and only the photoelectric detection device on the traveling direction side is effectively activated. Safety is ensured by stopping the gas cutting machine only when, for example, a worker enters in the direction of movement and blocks the photoelectric beam of the photoelectric detection device installed in the direction of movement. Even if a worker enters the opposite side of the gas cutting machine in the direction of movement, the gas cutting machine will not stop.
したがつて本発明装置によれば、従来装置と比
較してガス切断機の停止回数が少くなるため、そ
れだけ作業能率を向上させることができると共
に、停止による切断面に対する悪影響も少くし
て、製品の品質を高めることができる。また切断
停止個所の手直し等の余分な作業も軽減される。 Therefore, according to the device of the present invention, the number of stops of the gas cutting machine is reduced compared to the conventional device, so the work efficiency can be improved accordingly, and the negative impact on the cut surface due to the stoppage can be reduced, resulting in improved product quality. can improve the quality of Further, unnecessary work such as reworking the cutting stop point is also reduced.
（実施例）
以下、第１図〜第３図について本発明の一実施
例を説明する。図中前記符号と同一の符号は同等
のものを示す。(Example) An example of the present invention will be described below with reference to FIGS. 1 to 3. In the figure, the same reference numerals as the above-mentioned reference numerals indicate equivalent parts.
本実施例においては、第５図および第６図に示
した従来のガス切断機と同様のガス切断機２の走
行用モータ４に直流タコゼネレータ７を連結し、
この直流タコゼネレータ７からの出力電圧を第１
図に示す電器回路に入力することによつて、ガス
切断機２の進行方向側の光電検知装置５のみを有
効に作用させるようにする。 In this embodiment, a DC tachometer generator 7 is connected to a running motor 4 of a gas cutting machine 2 similar to the conventional gas cutting machine shown in FIGS. 5 and 6.
The output voltage from this DC tacho generator 7 is
By inputting the information to the electric circuit shown in the figure, only the photoelectric detection device 5 on the side in the advancing direction of the gas cutting machine 2 is made to operate effectively.
第１図中の８は位相反転アンプ、９はコンパレ
ータ、１０は最低速度設定用バイアス電圧を得る
ための可変抵抗器、１１はAND素子、１２はOR
素子である。 In Figure 1, 8 is a phase inversion amplifier, 9 is a comparator, 10 is a variable resistor for obtaining the bias voltage for setting the lowest speed, 11 is an AND element, and 12 is an OR element.
It is element.
すなわちこの電気回路によれば、直流タコゼネ
レータ７からの出力電圧をコンパレータ９で極性
（正・負）判定を行い、ガス切断機２の進行方向
側の光電ビーム発信器５ａと受信機５ｂよりなる
光電検知装置５のみを有効とし、進行方向側の光
電ビーム５ｃをさえぎつたときOR素子１２を経
由して、ガス切断機２の停止信号を出力し、この
信号によつて走行用モータ４を停止することによ
りガス切断機２を停止させることができる。なお
必要があればOR素子１２の出力信号によつてガ
ス切断機２を停止させると共に、警報を発生させ
ることもできる。 That is, according to this electric circuit, the polarity (positive/negative) of the output voltage from the DC tachometer generator 7 is determined by the comparator 9, and the photoelectric beam transmitter 5a and the receiver 5b on the traveling direction side of the gas cutting machine 2 are connected to each other. Only the detection device 5 is enabled, and when the photoelectric beam 5c on the traveling direction side is blocked, a stop signal for the gas cutting machine 2 is outputted via the OR element 12, and the traveling motor 4 is stopped by this signal. This allows the gas cutting machine 2 to be stopped. If necessary, the output signal of the OR element 12 can be used to stop the gas cutting machine 2 and also to generate an alarm.
（発明の効果）
上述のように本発明においては、ガス切断機２
の進行方向を判別する手段を設けて、その進行方
向側の光電検知装置５のみを有効に作用させるよ
うにしたから、ガス切断機２の進行方向側に例え
ば作業員が入つたりして、その進行方向側に設け
た光電検知装置５の光電ビーム５ｃをさえぎつた
時にのみガス切断機２が停止して安全を確保する
ことができる。そしてガス切断機２の進行方向の
反対側に作業員がたとえ入つてもガス切断機２は
停止しない。(Effect of the invention) As described above, in the present invention, the gas cutting machine 2
Since a means for determining the traveling direction of the gas cutting machine 2 is provided and only the photoelectric detection device 5 on the traveling direction side is effectively activated, for example, if a worker enters the traveling direction side of the gas cutting machine 2, Only when the photoelectric beam 5c of the photoelectric detection device 5 provided on the traveling direction side is blocked, the gas cutting machine 2 is stopped and safety can be ensured. Even if a worker enters the opposite side of the gas cutting machine 2 in the direction of movement, the gas cutting machine 2 will not stop.
したがつて本発明装置によれば、従来装置と比
較してガス切断機２の停止回数が少くなるため、
それだけ作業能率を向上させることができると共
に、停止による切断面に対する悪影響も少くし
て、製品の品質を高めることができるという効果
が得られる。また切断停止個所の手直し等の余分
な作業も軽減されるという効果も得られる。 Therefore, according to the device of the present invention, the number of stops of the gas cutting machine 2 is reduced compared to the conventional device.
Not only can the work efficiency be improved accordingly, but also the negative effect on the cut surface due to the stoppage can be reduced, resulting in the effect that the quality of the product can be improved. Further, an effect can be obtained in that extra work such as reworking the cutting stop portion is also reduced.
第１図は本発明装置の一実施例を示す電気回路
図、第２図は本発明装置を付したガス切断機の一
例を示す平面図、第３図はその側面図、第４図は
従来の安全装置の電気回路図、第５図は従来の安
全装置を付したガス切断機の一例を示す平面図、
第６図はその側面図である。
１……レール、２……ガス切断機、３……車
輪、４……走行用モータ、５……光電検知装置、
５ａ……光電ビーム発信器、５ｂ……受信器、５
ｃ……光電ビーム、５ｄ……光電検知装置出力接
点、６……電磁継電器、７……直流タコゼネレー
タ、８……位相反転アンプ、９……コンパレー
タ、１０……可変抵抗器、１１……AND素子、
１２……OR素子。
Fig. 1 is an electric circuit diagram showing an embodiment of the device of the present invention, Fig. 2 is a plan view showing an example of a gas cutting machine equipped with the device of the present invention, Fig. 3 is a side view thereof, and Fig. 4 is a conventional one. Fig. 5 is a plan view showing an example of a gas cutting machine equipped with a conventional safety device;
FIG. 6 is a side view thereof. 1...Rail, 2...Gas cutting machine, 3...Wheel, 4...Travel motor, 5...Photoelectric detection device,
5a...Photoelectric beam transmitter, 5b...Receiver, 5
c... Photoelectric beam, 5d... Photoelectric detection device output contact, 6... Electromagnetic relay, 7... DC tacho generator, 8... Phase inversion amplifier, 9... Comparator, 10... Variable resistor, 11... AND element,
12...OR element.
Claims (1)
前後に、その走行路を横断するように光電ビーム
発信器とその受信器とより成る光電検知装置を配
置し、ガス切断機が走行中に前記光電検知装置の
光電ビームがさえぎられた場合に、これを検知し
てガス切断機を停止させる装置において、ガス切
断機の進行方向を判別する手段を設けて、その進
行方向側の光電検知装置のみを有効に作用させる
ようにしたことを特徴とするガス切断機の安全装
置。1. A photoelectric detection device consisting of a photoelectric beam transmitter and its receiver is placed before and after the running direction of a gas cutting machine running on a rail so as to cross the running path, and when the gas cutting machine is running, In a device that detects and stops a gas cutting machine when the photoelectric beam of a photoelectric detection device is blocked, a means for determining the direction of movement of the gas cutting machine is provided, and only the photoelectric detection device in the direction of movement is provided. A safety device for a gas cutting machine, characterized in that the safety device operates effectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25377385A JPS62114766A (en) | 1985-11-14 | 1985-11-14 | Safety device of gas cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25377385A JPS62114766A (en) | 1985-11-14 | 1985-11-14 | Safety device of gas cutting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62114766A JPS62114766A (en) | 1987-05-26 |
| JPH0310430B2 true JPH0310430B2 (en) | 1991-02-13 |
Family
ID=17255942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25377385A Granted JPS62114766A (en) | 1985-11-14 | 1985-11-14 | Safety device of gas cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62114766A (en) |
-
1985
- 1985-11-14 JP JP25377385A patent/JPS62114766A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62114766A (en) | 1987-05-26 |
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