JPH0310800A - Water jet type cutting device - Google Patents

Abstract

PURPOSE:To improve controllability, to improve reliability and durability, and to improve safety by a method wherein various cutting functions, a control function, a display function, and a booking function are provided for a control part. CONSTITUTION:A control part formed with a control device 12 and a remote control device 3 is provided with a control function to control a prepared hole cutting motion for controlling reciprocation of a nozzle 14 of a water jet nozzle device 12 at a given stroke, a semiautomatic cutting motion to move the nozzle 14 at a given speed throughout a range of from a cutting starting point to a terminal point as water jet is effected, and an inspection motion to inspect an uncut part by moving the nozzle 14 at a high speed to form a cut part as water jet is carried out. Further, the control part is provided with a display function to display a nozzle position and a function to reserve various motions of a semiautomatic cutting motion, being a subsequent motion, and an uncutting inspecting motion during a prepared hole cutting motion.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cutting device using a water jet, and particularly relates to a cutting device used for remodeling such as demolition and renovation of buildings, for example, cutting reinforced concrete walls. It is something.

[Conventional technology]

(1) Several types of cutting methods and devices for reinforced concrete walls have been developed for the purpose of building renovations, but a water jet cutting device that can centrally and remotely control all functions from setting the device on the wall to cutting work. Conventionally, there was no control device for this.

(2) When cutting indoor reinforced concrete walls, the cutting machine is installed indoors and the water jet pump is installed outdoors, and the pump operator cannot directly see the condition of the cutting machine. and the operator of the cutting machine were communicating with each other via transceiver while firing the jet.

(3) In conventional water jet cutting equipment,
To press the ceiling outrigger, either install a check valve in the hydraulic (or pneumatic) circuit of the cylinder that generates the force to maintain the pressure inside the cylinder, or constantly operate a pressure supply source to supply a constant pressure. It continued.

[Problem to be solved by the invention]

Among the above conventional water jet cutting devices, (1)
The following problems i) to vi) were found in the following.

That is, i) Setting the cutting machine to the planned cutting line took time and was inefficient, requiring Mkm adjustment using a tool or positioning at a high place using a ladder.

i) There is a risk of damaging parts such as sponge rubber, which is a packing material attached to the open end of the nozzle head cover, or causing the device to shift or fall due to incorrect operation by the operator.

i) There is no function to check whether the pressing force against the ceiling or floor is appropriate.

iv) There is no detection function, display function, or emergency stop signal output function when an abnormality occurs.

■) It is not possible to perform continuous work from cutting to detecting uncut parts and re-cutting with the device still set.

vi) Nozzle operation during cutting is complicated, and the exact position of the nozzle cannot be seen from the outside.

In addition, in the conventional method (2) above, if an emergency situation occurs on the cutting equipment side during cutting work, such as damage to the high-pressure hose, misalignment of the equipment, overturning, or stoppage of the nozzle, the jet is immediately removed. If you want to stop the jet, if you communicate via transceiver and then stop the pump, it will take a long time to stop the jet, which is dangerous.

Furthermore, in the conventional method (3) above, if a check valve is used to maintain the pressure in the ceiling outrigger circuit, a sudden pressure drop after the pressure supply source is stopped can be prevented, but a slight drop from the valve can be prevented. It cannot prevent a gradual pressure drop that occurs after a certain period of time due to leaks.

Furthermore, the method of constantly operating the pressure supply source to maintain the pressure is not appropriate from the economical (power consumption) and noise standpoints, and also poses problems such as an increase in oil temperature and oil deterioration.

There is also a method of manually restoring the pressure periodically during cutting, but this is very dangerous as there is a high possibility that the worker will be distracted by other tasks or make an inadvertent mistake and forget to restore the pressure.

The present invention has been made in consideration of the above, and an object of the present invention is to provide a water jet type cutting device that can improve operability, improve reliability and durability, and improve safety. be.

In addition, the present invention makes it possible to add an automatic pressure return function to the ceiling outrigger without incorporating any special equipment into the ceiling outrigger's hydraulic circuit or the mechanism of the pressing part. This is done automatically with a program that eliminates human error, and also allows hydraulic (pneumatic)
The purpose of the present invention is to provide a water jet type cutting device in which the supply time and status of water can be confirmed based on the signal from the pump side of the pressure sensor, and erroneous injection due to human error can be prevented.

In addition, if an emergency occurs during cutting work, the jet injection can be stopped automatically and quickly, and settings such as the set pressure with the cutting device can be changed freely, and furthermore, the hydraulic (pneumatic) unit can be It is an object of the present invention to provide a water jet type cutting device that is driven only for a short time and has a high energy saving effect.

[Means to solve the problem]

In order to achieve the above object, the water jet type cutting device according to the present invention is movable on the floor, and has a mast having a ceiling outrigger and a floor outrigger, and a base mounted on the mast so as to be movable up and down. A stand device, a nozzle cover that is elongated in the horizontal direction (X-axis direction) and a nozzle that is movable along this nozzle cover is mounted on the base that is movable in the front-rear direction (Z-axis direction) on this base device. a cutting device consisting of a water jet nozzle device provided with a water jet nozzle device, a control device for controlling the cutting device, a remote control device for remotely controlling the cutting device, and a water jet nozzle device of the cutting device; In a water jet type cutting device comprising a water jet pump device for supplying water, the control section comprising the control device and a remote control device includes a pilot hole cutting operation for controlling the reciprocating movement of the nozzle of the water jet nozzle device with a predetermined stroker, and a nozzle. A semi-automatic cutting operation that moves at a predetermined speed while spraying a water jet from a preset cutting start point to an end point, and an uncut inspection operation that moves the nozzle at high speed across the cutting area while spraying a water jet to inspect for uncut parts. It has a control function to control each of the above, a display function to display the nozzle position, and a reservation function to reserve the next operation, semi-automatic cutting operation and uncut inspection operation, during the pilot hole cutting operation. Ta.

In addition, the control section of the water jet type cutting device includes a ceiling outrigger setting operation that controls the ceiling outriggers, and a nozzle cover pushing operation that moves the water jet nozzle device back and forth and presses its nozzle cover against the wall to be cut. It also has a control function that controls the pressure of the ceiling outrigger and nozzle cover, and a function that detects and displays the pushing force of the ceiling outrigger and nozzle cover.It also has a rising safety function that prevents the lifting device from rising too high, and a function that controls the pressure of the nozzle cover by pressing it against the nozzle cover. The waterjet nozzle device has a safety feature that disables the ceiling outrigger and waterjet nozzle device operation instructions after the sensor is activated and during nozzle movement.

Furthermore, in the water jet cutting device, a manual switch for emergency stop is provided on each of the control device, the remote control device, and the catcher installed on the back side of the wall to be cut, and the control section is provided with a function to display malfunction items. .

Furthermore, in the above-mentioned water jet type cutting device, a pressing force sensor is provided to detect a decrease in the pressing force of the ceiling outrigger, and a pressing operation of the ceiling outrigger is automatically performed based on a detection signal from the pressing force sensor. Equipped with outrigger automatic return function.

Furthermore, in the above-mentioned water jet type cutting device, a cutting preparation completion signal output unit is provided on the cutting device side to output a cutting preparation completion signal when the cutting device becomes ready to cut, and a water jet injection is possible on the pump side. A pump preparation completion signal output unit is provided to output a pump preparation completion signal when the above-mentioned signals are input, and the control unit is provided with a display unit indicating the preparation completion status by inputting both of the above signals. An emergency stop signal output section that outputs an emergency stop signal when a situation occurs is provided, and the control section is provided with a pump emergency stop signal output section that receives this emergency stop signal and outputs an emergency stop signal to the pump control device.

[For production]

A series of operations from setting up a cutting device to cutting in cutting work using a water jet on a wall to be cut can be performed efficiently, accurately, and safely by one operator.

Moreover, the pressing force of the ceiling outriggers decreases during the cutting operation, which prevents the cutting device from shifting its position or tipping over, thereby preventing the jet stream from being ejected to the outside.

Furthermore, the safety of the operator during the cutting operation is ensured.

〔Example〕

Embodiments of the present invention will be described based on the drawings.

The water jet cutting device has a cutting device 1 and a control device 2.
, a remote control device 3, an emergency stop device 4, and a water jet pump device 81 installed outdoors.

The cutting device 1 includes a mast 7 consisting of an inner mast and an outer mast that are movable on a floor surface 5 using casters 6;
Left and right ceiling outriggers 8 and left and right floor outriggers 9 that fix the mast 7, a base device 10 that is installed on the mast 7 so as to be able to rise and fall, and a base 11 of this base device 10 in the front and rear direction ( The water jet nozzle device 12 is mounted so as to be movable in the horizontal direction (in FIG. 1). The base device 10 is rotatable in the front-rear direction (Z-axis).

The water jet nozzle device 12 includes a nozzle cover 13 whose tip is open and which is elongated in the lateral direction (X-axis);
The nozzle 14 is movable along the nozzle cover 13 in the X-axis direction. 15 is a rotational drive device such as a hydraulic motor that rotationally drives the base device 10 in the θ direction;
7 is a water jet nozzle device 12 with respect to a base 11.
18 is an X-axis direction moving device for moving the nozzle 14 in the X direction.

The control device 2 has a configuration in which electronic components for controlling the cutting device 1 are housed in a housing, and is located at a position away from the cutting device 1 so as not to be exposed to water or abrasive material. 19 is an operation panel of this control device 2, 20 is a power switch, 21 is a malfunction item display switch, and 22 is a parameter setting switch. Further, 23 is an emergency stop button. Furthermore, 24 is a patrol light.

The operation panel of the remote control device 3 is as shown in Fig. 3, with reference numeral 25 a liquid crystal display, 26 a group of switches used for setting, 27 a group of switches used for disconnection, and 28 an emergency stop button. be.

The switch group 26 used for the above setting includes two ceiling outrigger push switches, a ceiling outrigger pull switch 30, a θ-axis clockwise rotation switch 31, a θ-axis counterclockwise rotation switch 32, a Y-axis up/out switch 33, and a Y-axis down switch. switch 3
4, Z-axis push switch 35, Z-axis pull switch 36, θ
Axis speed switch, switch 37, Y-axis speed switch 38
It consists of

On the other hand, the switch group 27 used for cutting includes a pilot hole (primary hole) cutting start switch 39, a semi-automatic cutting switch 40, an uncut inspection switch 41, an X-axis low-speed rightward movement switch 42, an X-axis low-speed leftward movement switch 43, X-axis high-speed rightward movement switch 44, X-axis high-speed leftward movement switch 4
5, an X-axis movement stop switch 46, an input/record rear numeric keypad 47, a speed setting switch 48, and four home return operation start switches.

The operation panel also includes a ceiling outrigger pressure sensor activation lamp 50, a Z-axis pressure sensor activation lamp 51, and a cutting condition monitor 52. 53 is a buzzer (Fig. 1).

The emergency stop device 4 is installed near a catcher device (not shown) on the opposite side of the wall 54 to be cut. 55 is the button switch.

The panel surface of the remote control device 3 has a flat sheet-type dust-proof structure, and the remote control device 3 can be used to hold the cutting device 1.
It is designed so that it will not malfunction even if the setting action is performed close to the

The remote control device 3 and the control device 2 are coupled through serial communication. As a result, the number of signal lines is reduced, and the outer diameter of the cable is therefore thinner and lighter, making it easier to handle the remote control device 3.

The operation of the above configuration will be explained below.

(1) Setting the cutting device (i) After moving the mast 7 to a predetermined position, turn on the ceiling outrigger push switch 29 of the remote control device 3 to apply hydraulic pressure (pneumatic pressure) to the actuator of the ceiling outrigger 8. Supply it, press it, and push it to the ceiling to fix it. Thereafter, the floor outrigger 9 is operated to fix it to the floor surface 5.

(ii) Operate the θ-axis rotation dry cloth switch 31 or the left switch 32 to rotate the rotary drive device 15 of the base device 10 to the right or left to set the orientation of the nozzle cover 13 horizontally or vertically.

(ii) ¥ axis up/out switch 31 and down switch 32
The height of the nozzle cover 13 is approximately set by raising and lowering the base device 10 by operating the .

(iv) By operating the θ-axis and Y-axis speed changeover switches 37 and 38, the θ-axis and Y-axis speeds in (ii) and (ii) above are changed so that the θ-axis and Y-axis speeds of the nozzle cover 13,
Fine-tune the setting position in the X-axis direction.

(v) Z axis push/pull switch 35.36 to operate Z
The axial movement device 17 is activated to press the nozzle cover 13 against the wall 54 to be cut.

(2) Cutting operation The cutting operation is performed by moving the nozzle 14 in the X-axis direction while ejecting an abrasive water jet from the nozzle 14. The X-axis moving device 18 that drives the nozzle 14 in the X-axis direction is numerically controlled by the control device 2.

The cutting operation using the water jet is carried out in order through each mode shown in FIG.

Each of the above modes will be explained in order below.

(i) Turn on the pilot hole cutting start switch 39 of the pilot hole (primary hole) cutting remote control device 3
Then, the nozzle 14 starts reciprocating over a predetermined stroke. As a result, an elongated prepared hole having a predetermined length is cut in the wall 54 to be cut. When the X-axis movement stop switch 42 is turned on, the above-mentioned reciprocating operation is completed, and the nozzle 14 returns to the starting point and stops.

Semi-automatic cutting start switch 4 during the above pilot hole cutting operation
When 0 is turned ON, the reservation function is activated, and as soon as the nozzle 14 returns to the starting point after completing the reciprocating operation, the nozzle 14 immediately shifts to the semi-automatic cutting mode.

(ii) Semi-automatic cutting This semi-automatic cutting means that the cutting start point, cutting length (or cutting end point), and cutting speed of the cutting operation of the wall 54 to be cut are set in advance, and the nozzle 14 is operated at a constant speed according to the settings. This is a cutting method that sprays a water jet without moving. At this time, since the movement of the nozzle 14 is numerically controlled by the control device 2, the operator only has to turn on the semi-automatic cut-off start switch 40, and the cut is automatically performed thereafter.

In this semi-automatic cutting, the cutting start point and stroke length can be freely set within the operating range of the nozzle 14.

Since the cutting speed (speed in the X-axis direction) varies depending on the concrete density of the wall 54 to be cut, the pitch and thickness of the reinforcing bars installed, etc., it is set to the speed most suitable for the wall 54.

If the cutting condition monitor 52 indicates that the cutting condition is not good after starting the cutting operation, press the X-axis movement stop switch 4.
6 to ON to stop the nozzle 14, and operate the X-axis low speed, low speed rightward, and leftward movement switches 22 to 25 to move the nozzle 1
Change the moving speed in step 4 and start cutting again. Nozzle 1
4 is set to move from the current position to the cutting end point.

When the uncut inspection start switch 41 is turned on during the semi-automatic cutting, the reservation function is activated and after the nozzle 14 reaches the cutting end point, the uncut inspection mode is executed.

(ii) Turn the uncut inspection start switch 41 of the uncut inspection remote control device 3 to O.
When set to N, the nozzle 14 moves from the cutting end point to the cutting start point.
moves at high speed while spraying a water jet to determine whether there is any uncut material.

This judgment is made by detecting changes in the strength of the water jet using a catch box (not shown) that receives the water jet on the back side of the wall 54 to be cut. It is determined that there is some uncut material because the force of ejection toward the catch box has weakened, and the result is displayed on the liquid crystal display section 25.

(iv) Re-cutting the uncut portion The nozzle 14 is manually operated according to the determination result on the liquid crystal display section 25 to re-cut the uncut portion.

At this time, in the cutting completion section, the X-axis low-speed rightward or leftward switches 42 and 43 are operated to cause the nozzle I4 to reciprocate at a low speed for cutting. Since both of the switches 42 and 43 are self-holding types, the X-axis movement stop switch 46 is used to stop the movement. Also, since the high-speed switch has priority over the low-speed switch, when the low-speed disconnection is completed, the high-side switch 42
．． 43, the nozzle 14 can be moved at high speed to the next re-cutting point without turning on the stop button 46.

(v) Uncut re-inspection After re-cutting, turn on the uncut inspection start switch 41
Then, re-inspect from the current position to the starting point.

Repeat the above working modes (iv) and (V) until there is no uncut portion left.

(vi) Setting and changing cutting conditions The cutting stroke length and cutting speed of the cutting operation and the cutting start point can be freely changed using the numeric keys of the input/memory clear key 47.

Four types of cutting speeds, V1 to V4, can be set, and are selected by a speed selection switch 48. This speed is the nozzle speed during semi-automatic cutting and X-wheel low-speed rightward and leftward movement.

Also, turn on the parameter setting switch 22 of the $II control device 2.
When set to N, the parameters of each work mode are displayed on the liquid crystal display 25, and the reciprocating stroke of the pilot hole, speed, X-wheel high-speed right-hand movement, left-hand movement speed, uncut inspection nozzle speed, etc. can be freely entered using the input/memory clear key 47. Can be changed.

The operation of the nozzle 14 in each of the above modes is shown in FIG.

The absolute position of the nozzle 14 of the nozzle cover 13 at this time can be displayed on the liquid crystal display section 25 of the remote control device 3.

That is, when the home return operation start switch 49 is turned on, the nozzle 14 moves to the limit switch (not shown) at the left end of the nozzle cover 13, and from there
Return mm to the right and stop.

This stopping point becomes the origin (Omm). After this, the entire nozzle cover 13, the cutting stroke range, and the current position of the nozzle are displayed on the liquid crystal display section 25 where the position of the nozzle 14 on the nozzle cover 13 is recognized as an absolute position. The current position of the nozzle is displayed as a numerical value and an arrow on the graphic, and the arrow on the display moves in accordance with the movement of the nozzle 14 (manual high/low speed, pilot hole cutting, semi-automatic cutting, uncut inspection).

(3) Safety measures (i) Z-axis interlock In order to prevent damage to the gasket on the wall pressing surface of the nozzle cover 13 and misalignment of the nozzle 14 from the scratch line due to operator error, press the Z-axis to prevent the pressure sensor. After activation, the interlock disables each of the ceiling outrigger push switch 29, θ sleeve cloth, left rotation switches 31, 32, Y-axis up/out, and lowering switches 33 and 34.

(ii) Ceiling outrigger interference interlock When the outriggers 8 are pressed against a stepped ceiling, they are fixed with different amounts of left and right extension.

When the base device 10 is raised (up and down on the Y axis), if the inner mast rises above the lower outrigger, it will be damaged, so the rise is stopped with a limit switch to prevent careless mistakes by the operator.

(i) While the other axis operation prevention nozzle 14 is moving when moving on the X axis, the ceiling outrigger pull switch 30, θ sleeve cloth, left rotation switch 31° 32, Y axis up and down,
Down switch 33, 34, Z axis push/pull switch 35
．． Each of the 36 switches is disabled, thereby preventing positional displacement and overturning due to erroneous operation during cutting work.

(iv) Confirmation of pressing force The pressing force of the ceiling outrigger 8 and the nozzle cover 13 is detected by a pressure sensor, and when a predetermined pressing force is reached, each pressure sensor activation lamp 50.
51 lights up and is visually confirmed.

(V) Emergency stop manual switch Manual emergency stop button 23, 28.5 in case an abnormality occurs during disconnection and the operator needs to stop the machine.
5 was provided on the catcher side arranged on the back side of the control device 2, the remote control device 3, and the wall to be cut 54.

(vl) Abnormality detection function and abnormality content display function An abnormality occurring in the cutting machine is detected by the monitoring function in the control device 2 and sensors such as limit switches, and measures such as an emergency stop are automatically taken according to the abnormality content.

The details of the abnormality are displayed on the liquid crystal display section 25 of the remote control device 3 or the leather accessory item display lamp 21 of the control device 2. Further, since the patrol light 24 and the buzzer 53 are also activated, the operator can know of an abnormality even if he is away from the remote control device 3.

(vi) Preventing ceiling outriggers from falling; ceiling outriggers are prevented from falling due to the automatic pressure return function.

(vi) Water jet stopping function When the cutting device 1 enters the emergency stop state, an emergency stop signal is output to the water jet pump and the water jet injection is stopped.

(vi) The structure and operation for preventing the ceiling outrigger from falling in the above safety measures will be explained below.

The ceiling outrigger 8 attached to the mast 7 is pressed against the ceiling or slab by a hydraulic cylinder device 60 and is stretched between a foot-operated floor outrigger 9 in contact with the floor 5, thereby fixing the mast 7. .

The water jet nozzle device 12 is a z-axis direction moving device 1
7 is pressed against the wall 54 to be cut, and the reaction force is supported by the mast 7.

The hydraulic circuit of the hydraulic cylinder device 60 for generating the push force of the ceiling outrigger 8 is shown in FIG.

In the figure, 61 is a motor, 62 is a gear pump driven by the motor 61, 63 is a reducing valve, 64 is a bypass plate, 65 is a flow regulator, 66 is an electromagnetic switching valve, 67 is a pilot check valve, and 68 is a pressure The sensor, 69 is a turntable, and 70 is a cylinder. Further, in the figure, 71 is an oil tank, 72 is a strainer, 73 is an oil filler port air breather, and 74 is an oil level gauge.

When extending the ceiling outrigger 8 to fix the cutting device 1, the ceiling outrigger push switch 29 of the remote control device 3 is turned on.

This causes the electromagnetic switching valve 66 to switch to the extended position, causing the cylinder 70 to extend and press against the ceiling. Ceiling outrigger 8
is pressed against the ceiling, and the operation is completed after confirming that the pressure sensor activation lamp 50, which indicates that a predetermined stretching force has been generated, is lit.

The oil pressure inside the cylinder 70 is controlled by the pilot check valve 67.
However, if wall cutting work is performed for a long time in this state, the pressure will gradually decrease due to slight leakage from the pilot check valve 67, and the pressing force supporting the mast 7 will decrease. It will decrease.

When the pressure in the cylinder 70 drops below a certain value, the pressure sensor 68 detects this, and the control device 2 receives the output signal and automatically presses the ceiling outrigger 8 according to the flowchart shown in FIG. . This program is repeatedly executed until the ceiling outrigger pull switch 30 of the remote control device 3 is turned on and the ceiling outrigger 8 is released.

Next, (vii) the configuration and operation of the water jet stop function in the above safety measures are shown in Figures 1 and 8.
9 will be explained.

(1) Cutting preparation completion signal The output flow of this signal is shown in FIG. 8, and is output when the cutting device 1 is in a state where water jet can be ejected.

The conditions for this signal to be output are that the nozzle cover 13 of the water jet nozzle device 12 is pressed against the wall to be cut 54 with a predetermined force, the pressure sensor is activated, and the cutting ready switch 80 of the remote control device 3 is turned on. This is what is happening.

This output signal is sent via the control device 2 to the pump control device 82 of the water jet pump device 81 . At this time, the cutting preparation completion lamp 83 of the remote control device 3 is lit. When this output signal is input to the pump control device 82, the cutting preparation completion lamp 84 of the pump control device 81 lights up, allowing the pump side worker to confirm that the cutting device 1 side is in a state of waiting for jet injection.

(2) Pump preparation completion signal This signal is output when the pump is ready for jet injection.

The pump operator turns on the pump ready switch 85 and operates the water jet pump 86 to perform jet injection. At this time, the cutoff #1 ready lamp 87 of the pump control device 82 lights up.

The pump preparation completion signal is input to the control device 2, and the pump preparation completion lamp 88 of the remote control device 3 is turned on. The operator on the cutting device 1 side can confirm that the jet is being sprayed from the water jet pump 86 by turning on the lamp 88.

(3) Emergency stop signal When the cutting device 1 is in the following state, an emergency stop signal is output from the control device 2 on the cutting device 1 side to the pump control device 82. Further, the output flow of the signal is as shown in FIG.

(a) The emergency stop button 23, 28 of the control device 2 or remote control device 3 is pressed by the operator.

(b) Abnormality in the X-axis moving device 18 for moving the nozzle 14 in the X direction.

(c) CPU error of remote control device 3.

(d) CPU abnormality of control device 2.

(c) Ceiling outrigger pressure automatic return error.

(r) Catcher (cutting water collection box) damaged.

When an emergency stop signal is input to the pump control device 82, (
b) Emergency stop by cutting off the power of the water jet pump 86, or (b) 0N- installed near the nozzle 14.
Jet injection is stopped by shutting off the jet by the OFF valve.

The above (a) and (b) are selected depending on the control device 82 on the pump side and the eight high-pressure hose piping systems.

It is also possible to create an interlock circuit using the preparation completion signals of (1) and (2) above so that the jet injection operation cannot be performed unless preparation completion signals are output from both.

〔Effect of the invention〕

According to the present invention, it is possible to improve operability, reliability and durability, and safety.

In addition, the ceiling outrigger 8 can be used without incorporating any special equipment into the fluid pressure circuit or the mechanism of the pressing part of the ceiling outrigger 8.
An automatic pressure recovery function can be added, and everything from pressure drop detection to recovery is automatically performed by the control device's program, eliminating human error. Furthermore, the hydraulic (air pressure) supply time and pressure sensor settings can be adjusted automatically. Settings such as pressure can be changed freely, and the hydraulic (pneumatic) unit is driven only for a short time, resulting in a high energy-saving effect.

Furthermore, if an emergency occurs during cutting work, the jet injection can be stopped automatically and quickly, and the status can be confirmed by signals from the cutting device and the pump side, preventing erroneous injection due to human error.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view;
Figure 2 is a front view, Figure 3 is a front view of the control panel of the remote control device, Figure 4 is a flowchart showing the order of each cutting mode, and Figure 5 is a line showing the nozzle operation in each mode. 6 is a hydraulic circuit diagram of the ceiling outrigger, and FIG. 7 is a flowchart showing the automatic pressure return function of the ceiling outrigger. 1 is a cutting device, 2 is a control device, 3 is a remote control device, 4 is an emergency stop device, 7 is a mast, 8 is a ceiling outrigger, 1
0 is a base device, 11 is a base, 12 is a water jet nozzle device, 13 is a nozzle cover, 14 is a nozzle, 25 is a liquid crystal display section, 26 is a group of switches used for setting, 27 is a group of switches used for cutting , 81 is a water jet pump device, 82 is a pump control device, and 86 is a water jet pump. Figure 1 Figure 2 Figure 3 Figure 7 Figure σ! D

Claims (5)

[Claims] (1) A mast that is movable on the floor and has a ceiling outrigger and a floor outrigger, a base device that is installed on this mast so that it can be raised and lowered, and a mast that is mounted on this base device so that it can be moved back and forth. A cutting device comprising a water jet nozzle device having a horizontally elongated nozzle cover and a nozzle movable along the nozzle cover on a base; a control device for controlling the cutting device; and a control device for controlling the cutting device. A water jet cutting device comprising a remote control device for remotely controlling the device and a water jet pump device supplying a water jet to a nozzle of a water jet nozzle device of the cutting device, wherein a control device comprising the control device and the remote control device A pilot hole cutting operation in which the nozzle of the water jet nozzle device is controlled to reciprocate at a predetermined stroke; a semi-automatic cutting operation in which the nozzle moves at a predetermined speed while jetting a water jet from a preset cutting start point to an end point; A control function that performs control of each uncut inspection operation in which the nozzle is moved at high speed across the cut portion while jetting a water jet to inspect for uncut residue;
A water jet cutting system characterized by having a display function for displaying the nozzle position and a reservation function for reserving the following operations, ie, a semi-automatic cutting operation and an uncut inspection operation, during the pilot hole cutting operation. Device. (2) The control unit in the water jet cutting device according to claim 1 includes a ceiling outrigger setting operation for controlling the ceiling outriggers, and a ceiling outrigger setting operation for controlling the ceiling outriggers, and moving the water jet nozzle device in the front and back direction to place the nozzle cover on the wall to be cut. A control function that controls the nozzle cover pressing operation;
It is equipped with a function to detect and display the pressing force of the ceiling outrigger and nozzle cover, and also has a rising safety function to prevent the lifting device from rising too high, and after the nozzle cover is pressed and its pressure sensor is activated, and when the nozzle is moved. , a water jet cutting device characterized by having a water jet nozzle device safety function that disables operation instructions of a ceiling outrigger and a water jet nozzle device. (3) In the water jet cutting device according to claim 1, each of the control device, the remote control device, and the catcher installed on the back side of the wall to be cut is provided with a manual switch for emergency stop, and the control section is provided with a malfunction item. A water jet cutting device characterized by being equipped with a display function. (4) In the water jet cutting device according to claim 1, a pressing force sensor is provided for detecting a decrease in the pressing force of the ceiling outrigger, and the pressing operation of the ceiling outrigger is automatically performed based on the detection signal of the pressing force sensor. A water jet cutting device characterized by having an automatic return function for ceiling outriggers. (5) In the water jet type cutting device according to claim 1, the cutting device side is provided with a cutting preparation completion signal output section for outputting a cutting preparation completion signal when the cutting device becomes ready for cutting, and the pump side is provided with a cutting preparation completion signal output section. A pump preparation completion signal output unit is provided to output a pump preparation completion signal when jet injection becomes possible, a control unit is provided with a display unit indicating the preparation completion status by inputting both of the above signals, and the cutting device is further provided with a display unit indicating the preparation completion state by inputting both of the above-mentioned signals. , an emergency stop signal output section that outputs an emergency stop signal when an abnormal condition occurs is provided, and a pump emergency stop signal output section that receives this emergency stop signal in the control section and outputs an emergency stop signal to the pump control device. A water jet cutting device characterized by being provided with.