JP2008272933A - Severance and cutting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain an ultra-high pressure fluid injected to an object to be cut at a high efficiency, and to attain miniaturization and portability by saving motive power for obtaining the ultra-high pressure fluid. <P>SOLUTION: The severance and cutting device is provided with an injection part 2 for injecting the fluid relative to the object to be cut; and a pressure-raising part 3 having a pressure-raising piston 32 and pressure-raising the fluid fed to the injection part 2 by compression action of the pressure-raising piston. The pressure-raising part 3 has pressure-raising cylinders 33, 43, 71 in which the pressure-raising pistons 32, 42, 62, 72 are slidably arranged at the inside; water-pouring valves 35, 45; and deaeration valves 36, 46. When the pressure-raising piston is slid in one direction to pour the fluid to the inside of the pressure-raising cylinder, the water-pouring valve is closed to reduce the pressure at the inside of the pressure-raising cylinder, and a gas component in the fluid is generated as bubbles. When the pressure-raising piston is slid in the other direction to pressure-raise the fluid at the inside of the pressure-raising cylinder, the deaeration valve is opened to discharge the bubbles. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cutting / cutting apparatus used for cutting a workpiece using a high-pressure fluid and, as a result, cutting the workpiece.

  2. Description of the Related Art Conventionally, a so-called water jet type cutting and cutting apparatus is used that cuts an object to be cut such as metal, ceramic or stone by spraying a high-pressure liquid such as water onto the object to be cut. This type of cutting and cutting device requires a hydraulic pressure of one hundred to several hundred megapascals.

  A device that has been put into practical use to generate this ultra-high water pressure requires power of several tens of horsepower, is large in size, is stationary, and is not a portable device.

  For this reason, as a method of processing floor materials such as tiles, marbles, and granites at the construction site, cutting processing by dicing occupies most, and processing by water jet is hardly spread at present.

  The merit of processing by dicing is that the apparatus is inexpensive, and dicing is suitable for linear cutting.

  However, dicing is difficult to cut along a free curve, and it takes a lot of time to repeat a linear process over and over in order to perform a process with a curve. In addition, granite is a very hard stone, and cutting requires more than twice as much time as marble.

  Further, marble and the like often have a chipped stone during cutting, and extreme concentration is required for complicated processing.

  This is the main cause of poor work efficiency in dicing. In addition, the noise during processing is 80 dB or more. Furthermore, during processing, the stone material is directly held by hand and brought close to the rotary blade, which is a very dangerous working environment. In addition, adverse effects on the human body due to the powder may be considered.

  As a first method of this type of water jet cutting and cutting apparatus, there is a method in which water is directly supplied to the triple hydraulic cylinder 106 and high pressure water is obtained by compression of a piston provided in each cylinder.

  As shown in FIG. 1, the first type of water jet cutting and cutting apparatus 100 includes a power 101, a triple water pressure pump 104, a reserve tank 107, a high pressure hose 108, and a cutting head 109. The three pistons have a phase difference of 120 degrees, and the water injected into the triple hydraulic cylinder 106 is compressed by the pistons and stored in the reserve tank 107 through the valves. The stored high-pressure water is guided to a cutting head 109 by a high-pressure hose 108, and is emitted from a spray nozzle 110 as a water jet flow to cut an object.

  As the power (motor) 101, a 500V three-phase motor of 50 horsepower or more is usually used. The rotational speed is lowered at the same time as the speed reducer 102 is increased, and the rotational torque is increased at the power transmission 103 (for example, a clutch). Turns power transmission to and off. The rotary motion transmitted by the power transmission device 103 is converted into a linear motion by the crankcase, and the water injected from the water supply hose 105 is several hundred mega at a stroke by the reciprocating motion of the piston in each cylinder of the triple hydraulic cylinder 106. Boosted to Pascal. The water pressure becomes a water pressure that repeats high and low every 120 degrees that is the phase difference of each piston that reciprocates in the triple water pressure cylinder 106. Since the water pressure is not uniform, the water pressure is made uniform by a water pressure smoothing device (reservation tank) 107. The smoothed ultra-high pressure water is transported to the cutting head 109 by the high-pressure hose 108 and radiated as a water jet 111 from the spray nozzle 110.

  In this water jet cutting and cutting apparatus 100, the water pressure is significantly reduced by drawing it to the cutting head 109 with the high-pressure hose 108, and the water pressure is also significantly reduced in the reserve tank 107, so that the combined energy loss is large. Inevitably, the piston pump becomes larger in size and the power source becomes larger.

  Further, as a second method of this type of water jet cutting and cutting apparatus, there is a method of obtaining high-pressure water by a hydraulic compression method using two alternating compression pistons.

  As shown in FIG. 2, the water jet cutting / cutting device 200 of the second system includes a hydraulic pump 203, a hydraulic piston that moves to the left and right by hydraulic pressure, and two left and right phases that are 180 degrees out of phase with the operation of the piston. The hydraulic pumps 219 and 220 are used to create ultra-high pressure water that is alternately compressed and stored in the reserve tank 223, and the stored ultra-high pressure water is cut and cut in the first method. Similar to the apparatus 100, it is guided to the cutting head 225 by the ultra-high pressure water hose 224 and is emitted as a water jet flow from the nozzle to cut the object.

  As the power (motor) 201, a 500V three-phase motor of 50 horsepower or more is usually used, and a high hydraulic pressure is generated by the hydraulic pump 203 through the reduction gear 202, and connected to the bidirectional hydraulic switching valve 210 via the hydraulic hose (main) 209. Is done. The hydraulic pressure that has passed through the bidirectional hydraulic switching valve 210 is then supplied to the axisymmetric two-phase hydraulic pump 218 and is alternately switched to the hydraulic cylinder (right) 213 and hydraulic cylinder (left chamber) 214 by the switching operation of the bidirectional hydraulic switching valve 210. Oil is injected and discharged. As a result, the hydraulic piston in the hydraulic cylinder 213 moves left and right, and the arms attached to both sides of the piston move the pistons in the high hydraulic cylinder (right) 219 and the high hydraulic cylinder (left) 220. Water is supplied to the high water pressure cylinder (right) 219 and the high water pressure cylinder (left) 220 from the water injection hose (main) 206 through the water injection hose (for right cylinder) 207 and water injection hose (for left cylinder) 208. The

  The ultra-high pressure water compressed by the left and right cylinders is stored in the reserve tank 223 through the ultra-high pressure hose 221 and the ultra-high pressure hose 222, and is supplied to the cutting head 225 through the final ultra-high pressure water hose 224. Is emitted as a water jet 226.

  The water jet cutting and cutting apparatus 200 includes a preliminary compression pump 204, a water injection supply port 205, a hydraulic cylinder hose (for right cylinder) 211, a hydraulic cylinder hose (for left cylinder) 212, a hydraulic oil storage tank 215, A hydraulic oil return direction 216 is provided. Although check valves for preventing water from flowing back are provided at various locations, detailed description thereof is omitted here. In the water jet cutting / cutting apparatus 200 of the second type, similarly to the water jet cutting / cutting apparatus 100 of the first type described above, piping at an ultra high pressure is necessary and at the same time, pumping is performed at high speed because hydraulic pressure is used. However, the damping loss in the reserve tank 223 is larger than that in the first method.

  There is also a water jet cutting and cutting device that creates a high water pressure once in the first method and connects the high pressure water to the second method to obtain a higher pressure.

Japanese Patent Application Laid-Open No. 5-24480 discloses a cutting device that includes an injection unit and a pressure increase unit, and injects a high-pressure fluid from the injection unit in synchronization with the compression operation cycle of the pressure increase piston. There is what was described in the gazette (patent document 1). Moreover, as an apparatus which injects a pulse-form high pressure fluid from an injection part, there exist some which were described in Unexamined-Japanese-Patent No. 2001-115657 (patent document 2) and Unexamined-Japanese-Patent No. 1-271199 (patent document 3).
Japanese Patent Laid-Open No. 5-24480 JP 2001-115657 A JP-A-1-271199

  As described above, the cutting and cutting apparatus using the conventional water jet requires a large amount of power to obtain ultra-high pressure water, and the apparatus is also large and difficult to carry and use easily. there were.

Accordingly, the present invention can obtain an ultra-high pressure fluid to be ejected onto an object to be cut with high efficiency, reduce the power for obtaining the ultra-high pressure fluid, and achieve a miniaturization and portability. The technical challenge is to provide

Furthermore, the present invention provides a cutting / cutting device that prevents energy from being reduced by the gas component being dissolved in the pressurized water jetted from the jetting unit, and realizes an improvement in energy efficiency in the compression process. Let it be an issue.

In order to solve this technical problem, a basic configuration of a cutting and cutting apparatus to which the present invention is applied includes an injection unit that injects a fluid to an object to be cut, and a boosting piston, which are supplied to the injection unit. A pressurizing unit that pressurizes the fluid by the compression operation of the pressurizing piston. Then, in synchronism with the period of the compression operation of the boosting piston, a pulsed high-pressure fluid is ejected from the ejection section to cut and cut the workpiece.

More specifically, the cutting and cutting apparatus to which the present invention is applied is a pressure-increasing means for increasing the pressure of water, reducing the water pressure at once by using the time when water is injected into the pressure-increasing cylinder, and generating the gas components in the water as bubbles by the pressure reduction. And an apparatus for simultaneously performing deaeration and pressurization, including a process of removing gas generated at the time of pressurization from a cylinder.

  That is, the cutting and cutting apparatus includes a first piston as a boosting piston, a first cylinder as a boosting cylinder that is slidably disposed inside the boosting piston, a water inlet electromagnetic valve, and a degassing cylinder. A solenoid valve, and when injecting water into the booster cylinder by sliding the booster piston in one direction, the water inlet solenoid valve is closed to reduce the pressure (water pressure) inside the booster cylinder, The gas component is generated as bubbles, and when the pressure-increasing piston is slid in the other direction to increase the fluid inside the pressure-increasing cylinder, the deaeration electromagnetic valve is opened and the bubbles are discharged. By dissolving the gas component in the pressurized water jetted from the section, it is possible to prevent a decrease in energy and improve the energy efficiency in the compression process.

  In the cutting and cutting apparatus to which the present invention is applied, a secondary booster that boosts pressure and a tertiary booster that performs super-high-pressure pulse injection are connected to a hydraulic piston in a boosting portion powered by hydraulic pressure, and the same distance. Is a device that simultaneously performs secondary boosting and ultra-high-pressure pulse-like tertiary boosting in the process of moving.

  That is, the cutting / cutting device includes a hydraulic pressure transmission piston portion whose pressure raising portion is driven by hydraulic pressure, and a first piston portion formed integrally with the hydraulic pressure transmission piston portion and having a smaller area than the hydraulic pressure transmission piston portion. A secondary boosting piston part and a tertiary boosting piston part are formed integrally with the hydraulic pressure transmission piston part, and the second piston part has a smaller area than the first piston part. The pressure increase efficiency of the water can be further improved by performing the pressure increase of the water by the first piston portion and the pressure increase of the water by the second piston portion at the same time and the pulse pressure increase at the same time. it can.

  Further, the cutting and cutting apparatus to which the present invention is applied includes a pair of hydraulic pistons that perform a push-pull operation in a pressure increasing portion (hydraulic pump) that is driven by hydraulic pressure, and an opposite side to which an oil liquid separated by the pistons is injected. The space is also filled with oil (liquid) so that the oil moves back and forth between a pair of cylinders. The operation of pushing one piston and the pulling operation of the other piston are transmitted through the oil (liquid), and the piston is pulled. It is an apparatus that can suppress foaming in the oil liquid due to reduced pressure during operation.

  That is, in the cutting and cutting apparatus, the booster includes a secondary hydraulic cylinder as a pair of cylinders, a second piston as a pair of pistons that are driven by hydraulic pressure and alternately perform a push operation and a pull operation, and a pair of pistons. The return hydraulic fluid circulating in the auxiliary cylinder chamber opposite to the side driven by the hydraulic pressure of the pair of pistons of the cylinder and the side filled with the feedback hydraulic fluid of the pair of cylinders are used for feedback. By having a return fluid connection pipe as a connection pipe to connect the oil liquid so that it can circulate, one hydraulic piston pushes (push action), and the other hydraulic piston pulls (pull action). At this time, the return hydraulic fluid in the auxiliary cylinder on the pushed side flows into the auxiliary cylinder on the pulled side through the connecting pipe, and the hydraulic pressure on the pulled side Since push the piston to pull side, it can make it possible to suppress the foaming of the oil solution during the pull operation, to prevent energy loss.

  Further, the cutting and cutting apparatus to which the present invention is applied operates in a first boosting step of boosting with mechanical power by a push-pull operation in a boosting unit having first, second, and third boosting steps, and hydraulically. It is a device that increases the water pressure sequentially by a second pressure booster that creates high water pressure using a large area piston and a third pressure booster that creates a super high water pressure by providing a piston with a reduced compression area. .

  That is, the cutting / cutting device has a first boosting unit disposed at a position close to the power source, and a second boosting unit configured to perform secondary boosting and tertiary boosting disposed at a position close to the injection unit. The first pressurizing unit has a first piston that compresses and pressurizes the fluid and compresses the oil liquid to generate hydraulic pressure, and performs the primary pressurization of the fluid. From a hydraulic piston portion driven by the hydraulic pressure generated in the first boosting portion, a secondary boosting piston portion as a first piston portion formed with a smaller area than the hydraulic piston portion, and from the first piston portion As the second piston portion having a small area, a second piston composed of a tertiary boosting piston portion is provided, and when the hydraulic pressure transmission piston portion is moved by hydraulic pressure, the secondary fluid of the first piston portion is fluidized. While boosting the pressure, the second piston part By performing the third order boosting the body, it is possible to improve the boosting efficiency of the water.

Further, the power unit of the boosting unit constituting the cutting / cutting device according to the present invention includes a pinion that is rotated and a first rack that is engaged with the pinion and is operated to move when the pinion is rotated. A second rack that is meshed with the pinion and is moved in the opposite direction to the first rack by rotating the pinion, and the boosting unit has a pair of boosting pistons. The pair of boosting pistons are driven by the linear motion of the first and second racks to compress the fluid to generate a pulsed high-pressure fluid.

Further, the power unit includes an electromagnetic or mechanical clutch that transmits a rotational driving force to the pinion, and the clutch is a high-pressure pulse that is controlled by the boosting unit under electrical or mechanical control. By controlling the pulse width of the fluid, the cutting / cutting operation is turned on / off and the cutting / cutting speed is adjusted.

That is, in the cutting and cutting apparatus according to the present invention, the power unit of the boosting unit is engaged with the rotationally operated pinion, the first rack that is linearly operated by the rotational movement of the pinion, and the pinion. And a second rack that is linearly operated in the opposite direction to the first rack by being engaged with each other and the pinion is rotated, and the pressurizing unit includes the first piston as a pair of boosting pistons, A pair of boosting pistons is driven by the linear movement of the first and second racks to compress the water to generate a high-pressure fluid in a pulsed state, thereby greatly improving the boosting efficiency of the water. .

  The present invention achieves high efficiency in the process of compressing fluid and saves power for obtaining an ultra-high pressure fluid to be injected onto an object to be cut, thereby enabling miniaturization and portability.

And the cutting and cutting apparatus to which the present invention is applied can be used for cutting and cutting by injecting ultra-high pressure fluid onto objects to be cut such as various metals, ceramics and stones , for example, tiles, marbles, It is used for processing floor materials such as granite and outer wall materials, and is particularly effective for processing floor materials and outer wall materials having complex and decorative patterns.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

The cutting and cutting apparatus to which the present invention is applied , for example, jets a fluid such as water or a fluid containing powder for cutting and cutting to an object to be cut such as metal, ceramic or stone in an ultra-high pressure state. This is a so-called water jet type cutting and cutting apparatus for cutting and cutting an object to be cut , and basically has a configuration as shown in FIG.

As shown in FIG. 3, the cutting / cutting device 1 includes an injection unit 2 that injects fluid to an object to be cut, a pressurization unit 3 that pressurizes fluid supplied to the injection unit 2, and the pressurization unit 3. And a power unit 4 that generates power for driving. In the following description, it is assumed that water is used as the fluid that is boosted by the booster 3 and sprayed from the sprayer 2, but the present invention is not limited to this, and other fluids with high efficiency can be used. It may be a fluid containing powder to enable cutting.

  As will be described later, the boosting unit 3 performs a secondary boosting and a tertiary boosting on the first boosting unit 5 having a primary boosting function and a deaeration function, and water boosted by the first boosting unit 5. A second booster 6 for boosting to a higher pressure, a primary booster water pipe 8 for circulating the primary boosted water boosted by the first booster 5 to the second booster 6, and a first In order to transmit the hydraulic pressure generated in the booster 5 to the second booster 6 as a drive source, there is a hydraulic pressure transmission pipe 9 for circulating the oil liquid mutually.

Here, in order to transmit the driving force of the second booster 6 has been configured to provide a connection pipe 38, 48, such as a connection hose to be described later as a hydraulic transmission pipe 9, the first and second By arranging the pressure-increasing parts 5 and 6 adjacent to the neighboring positions, or by forming them integrally and directly connecting them, the hydraulic pressure generated in the first pressure-increasing part 5 can be reduced to the second without providing this connecting pipe. You may comprise so that it may be used as a drive source of the pressure | voltage rise part 6.

  The power unit 4 has a drive source such as a motor, converts the rotational power generated by the drive source into a linear motion of a push-pull operation as described later, and transmits the linear motion to the first booster unit 5.

  The 1st pressure | voltage rise part 5 compresses both oil liquid and water. The hydraulic fluid compressed and boosted by the first booster 5 operates the hydraulic cylinder of the second booster 6 that performs secondary and tertiary boosting through the hydraulic transmission pipe 9. The primary boosted water boosted by the first booster 5 is supplied to the second booster 6 through the primary boosted water pipe 8.

  The second boosting unit 6 that performs secondary and tertiary boosting and the injection unit 2 that injects the fluid that has been boosted to ultrahigh pressure are disposed very close to each other and have no piping loss of ultrahigh pressure water. A first booster 5 is arranged in the vicinity of the power unit 4 that is a power source, and after boosting to about 10 megapascals, the second booster performs secondary and tertiary boosting in the vicinity of the cutting head in a low pressure state. This is a system that leads to the unit 6, suppresses compression energy loss due to piping, and boosts the pressure up to several hundred megapascals by the second boosting unit 6. With this structure, the piping is at a pressure of 1/10 or less compared to the conventional piping method up to the cutting head in the final boosted state, and the pressure loss can be greatly reduced. The first boosting unit 5 that performs primary boosting and the second boosting unit 6 that performs secondary and tertiary boosting constitute a boosting system as described below.

  The cutting / cutting device 1 is a method that generates pulsed ultra-high pressure water and cuts directly using the output, unlike the conventional method of constantly producing high-pressure water. The difference is that a boosting piston of the boosting unit 3 described later generates an ultrahigh pressure fluid (hereinafter also referred to as “water jet”) in a pulsed manner only during the compression operation.

  Here, prior to the description of the power unit 4 that constitutes the cutting / cutting device 1 and drives the boosting unit 3, a system of a conventional ultrahigh pressure boosting device will be described.

  The conventional ultra-high pressure booster system was a system in which the rotational power was changed to linear power with a crankshaft or cam, and a high pressure was obtained by compression with a piston, or a hydraulic pump was moved with rotational power and compressed with a hydraulic cylinder. . In the method using a cam or a crank, the compression force is not constant, and it is necessary to provide a reserve tank between the ultra high pressure pump and the cutting head. The pressure loss due to this reserve tank cannot be ignored. In addition, a rapid increase in hydraulic pressure in the hydraulic system is difficult and still requires a reserve tank. With either method, it takes a considerable amount of time to obtain a stable output from the start, and the power loss during standby is large because it is necessary to always keep the boosted state.

  For the reasons described above, the conventional method increases the weight and volume of the apparatus. In addition, because of the large power unit, the ultra high pressure water is supplied to the injection unit via a long ultra high pressure pipe, resulting in a large pipe loss.

As described above, the cutting / cutting apparatus 1 to which the present invention is applied employs a method in which ultra-high pressure water is generated in a pulse form and the output is directly used for cutting, and the boosting piston is compressed. A water jet is generated only in a pulsed manner. In the following description, the cutting / cutting apparatus 1 that performs cutting using directly the pulsed water jet generated by the compression operation of the boosting piston will be described. You may comprise so that the above-mentioned reserve tank holding super-high pressure water may be provided.

  Next, the power unit 4 constituting the cutting and cutting apparatus 1 that generates a water jet in a pulse manner will be described in detail with reference to FIG.

  In order to create a pulsed ultra-high water pressure, a uniform compressive force is required, and the rotational power shown in FIG. 4 is converted into a linear motion in order to obtain the compressive force. The power unit 4 can convert the rotational motion into a linear motion with a substantially uniform pressure. Since power is directly and uniformly applied, a water jet output with a uniform pulse pressure can be achieved.

  The power unit 4 mechanically or electrically turns on and off the rotational power mechanically. The power unit 4 electrically controls the pulse width of the water jet by using an electromagnetic clutch. It is possible.

  Specifically, as shown in FIG. 4, the power unit 4 is rotated by a rotation drive unit such as an electric motor (not shown) that generates rotation power as a power source, an internal combustion engine, and the rotation power generated by the rotation drive unit. And a first rack 23 that is engaged with the pinion 22 and linearly operated by rotating the pinion 22, and a first rack 23 that is engaged with the pinion 22 and rotated. And a second rack 24 linearly operated in the opposite direction.

The power unit 4 includes a rotational power transmission shaft 11 that transmits the driving force generated by the above-described rotational driving unit, and large and small gears for reducing the speed of the rotational power transmission shaft 11 to a desired rotational speed. A gear box 12 in which a rotational speed reduction gear device composed of a combination of the above and a counter biaxial output device composed of a combination of bevel gears are integrated, and a rotational driving force transmitted to the pinion 22 side is connected to the gear box 12. The first and second electromagnetic clutches 13 and 14 are controlled on and off. Here, the electromagnetic clutches 13 and 14 are used as clutches for arbitrarily intermittently transmitting the driving force transmitted to the pinion 22 side, but a mechanical clutch having a mechanically similar function is provided. You may comprise as follows.

  The power unit 4 includes a first clutch-side pulley 15, a first V-belt 17, and a first pinion-side pulley 19 that transmit the driving force of the bevel gear to the pinion 22 via the first electromagnetic clutch 13. A second electromagnetic clutch side pulley 16, a second V belt 18, and a second pinion side pulley 20 that transmit the driving force of the bevel gear to the pinion 22 via the second electromagnetic clutch 14 are provided.

  The rotational power transmission shaft 11 is directly connected to a power transmission shaft such as an electric motor. The gear box 12 decelerates the driving force from the rotational power transmission shaft 11 to an appropriate speed, and is further symmetrical with respect to an axis orthogonal to the rotational power transmission shaft 11 by a combination of bevel gears. Rotational power is drawn out to a pair of output shafts.

  The first electromagnetic clutch 13 and the second electromagnetic clutch 14 are attached to a pair of output shafts whose rotation directions are opposite to each other. The first and second electromagnetic clutches 13 and 14 are controlled such that when one is turned on, the other is turned off, or both are turned off.

  For example, when the first electromagnetic clutch 13 is turned on, the clutch is connected to the output shaft of the gear box 12, and the first V-belt connected to the first clutch-side pulley 15 rotating in rotation is rotated. 17 is rotated.

Pinion 22 axis directly connected to the first pinion pulley 19 is coupled to a pinion pulley 19 is rotated in an arrow R ₁ direction in FIG 4 is rotated in the same direction.

When the pinion 22 rotates in the direction of the arrow R ₁ , the first rack 23 engaged with the pinion 22 moves in the direction of the arrow X _{1 in} FIG. 4, and the second rack 24 moves in the direction of the arrow X _{2 in} FIG. Move. The moving directions of the first and second racks 23 and 24 are opposite to each other, but the moving distance is the same. The first rack 23 and the second rack 24 are set to be equidistant from the pinion 22 in opposite directions.

  When the first electromagnetic clutch 13 is turned off and the second electromagnetic clutch 14 is turned on, the pinion 22 rotates in the opposite direction to that described above, and the first and second racks 23 and 24 are And move in the opposite direction.

  When the positions of the first rack 23 and the second rack 24 are detected by an electronic or mechanical method and the first and second electromagnetic clutches 13 and 14 are switched alternately, the first and second racks 23 and 24 are switched. Repeats a symmetrical operation.

  By connecting arms 28 and 29 of first pistons 32 and 42, which will be described later, of the first booster 5 to one end of these two racks 23 and 24, pushes that are 180 degrees out of phase with the two pistons. A pulling operation can be performed, and this power is used as the power of the booster 3. Here, the push-pull operation means that when one piston is pushing in the pushing direction (pushing operation), the other piston is pulling in the pulling-out direction (pull operation).

  Next, a boosting system using the first booster 5 that performs primary boosting and the second booster 6 that performs secondary and tertiary boosting, which constitutes the cutting apparatus 1 to which the present invention is applied, will be described with reference to FIG. explain. FIG. 5 is a diagram showing details of the entire booster system.

  The first and second boosting units 5 and 6 are configured to be boosted by being driven by the power unit 4 that performs the push-pull operation described above. Hereinafter, this boosting method is referred to as a push-pull method. Each of the first and second boosting units 5 and 6 includes a pair of pumps having the same structure. When one pump (A side) performs a pushing operation (pushing operation), the other pump (B Side) performs a pulling operation (pull operation). On the A side and B side, the return oil fluid circulates in the auxiliary cylinder chambers 66 and 76 via the return oil connection pipe 80 as will be described later. The first pressure raising unit 5 is formed in a cylindrical shape, and a pair of first cylinders 31 and 41 each filled with oil liquid and water on the other side, and the first cylinder 31 and And a pair of first pistons 32 and 42 which are reciprocated while sliding in the interior 41.

  The first cylinders 31 and 41 are respectively filled with oil on one side of the first pistons 32 and 42, and hydraulic cylinder chambers 33 and 43 that generate hydraulic pressure as a drive source for the second booster 6. And the other side of the first pistons 32 and 42 is filled with water and functions as primary pressurizing chambers 34 and 44 that perform primary pressurization.

  That is, when the first pistons 32 and 42 are pushed into the first cylinders 31 and 41 (pushing operation), the hydraulic fluid in the hydraulic cylinder chambers 33 and 43 is compressed to increase the pressure and A hydraulic pressure is generated as a drive source for the second booster 6 that performs the third boost, and water is injected into the primary boost chambers 34 and 44. On the other hand, when the first pistons 32 and 42 are pulled out (pulled) from the first cylinders 31 and 41, the water in the primary pressurizing chambers 34 and 44 is compressed and pressurized to 1 The next boosted water is sent to the second booster 6 side. Thus, the first pistons 32 and 42 and the primary pressure increasing chambers 34 and 44 of the first cylinders 31 and 41 function as a primary pressure increasing pump.

  Further, in the primary pressure increasing chambers 34 and 44 of the first cylinders 31 and 41, water inlet electromagnetic valves 35 and 45 for injecting water into the cylinders, and deaeration for degassing generated bubbles in the cylinders. There are provided electromagnetic valves 36 and 46, and check valves 37 and 47 for sending the boosted primary pressurized water to the next step.

  Further, the hydraulic cylinder chambers 33 and 43 of the first cylinders 31 and 41 are connected to a hydraulic pressure transmission pipe 9 for supplying hydraulic pressure to the second booster 6 as a connection pipe 38 for oil and liquid such as a connection hose, 48 is provided.

  In addition, the first pressure raising unit 5 includes water injection ports 39 and 49 for injecting water into the first cylinders 31 and 41 through the water injection electromagnetic valves 35 and 45, and the first injection through the check valves 37 and 47. The primary boosted water pipes 40 and 50 connected to the cylinders 31 and 41 and the primary boosted water pipes 40 and 50 are connected to the primary boosted water pipes 40 and 50 to store the primary boosted water before being sent to the second booster 6. Primary pressurized water tank 51.

In the first pressurizing unit 5, when one first piston 32 is slid in the direction of arrow X _{3 in} FIG. 5 on the A side, tap water enters the primary pressurizing chamber 34 of the first cylinder 31. Is injected into the primary pressure increasing chamber 34 through the water inlet electromagnetic valve 35 as indicated by Fw ₁₁ .

When the water inlet electromagnetic valve 35 is excited at an appropriate position, the valve is closed and water injection stops, and the air pressure in the primary pressure increasing chamber 34 is lowered at once and the air dissolved in the water appears as bubbles A ₁ .

On the other hand, the B side, the first piston 42 of the other is slid in the arrow X ₄ direction in FIG. 5, when operating pulling in the direction of the first piston 42 is withdrawn, the bubbles, first gathering the upper portion of the cylinder 41, further bubbles when the first piston 42 approaches the starting point is a compressed air a ₂ collectively large. The compressed air A ₂ passes through the deaeration electromagnetic valve 46 provided at the upper part of the first cylinder 41 and is exhausted as A ₃ .

Meanwhile, the primary boosted water that has been boosted by compressing together are degassed, pushes open the check valve 47, guide the primary boost water tank 51 via the primary booster water pipe 50 as shown in Fw ₁₂ It is stored.

  The primary pressurized water stored in the primary pressurized water tank 51 is boosted to about 2 megapascals, and a part thereof is used for washing water for the gantry on which the cut object is mounted.

  Most of the water stored in the primary pressurization water tank 51 is led to secondary pressurization chambers 67 and 77, which will be described later, of the second pressurization unit 6 in order to increase the pressure so as to become high-pressure water. The voltage is boosted by the process of the booster 6.

  Next, the operation of the deaeration process of the gas component such as air dissolved in the water as the fluid in the first booster 5 will be described in detail with reference to FIGS. 6 and 7.

  When super-high pressure water is injected into air pressure, the rapid expansion of gas components such as air dissolved in the water reduces the radiation force of the water jet. It is important to remove the gas that has melted in the water before the pressure of the water is increased to an ultra-high pressure. As a countermeasure against this, the cutting / cutting device 1 has a structure in which the first booster 5 as a primary booster pump that reciprocates has a deaeration function to remove a gas component in water.

  This is because the high-pressure fluid ejected from the ejection unit 2 is depressurized all at once in the atmosphere, so that if a gas such as air is dissolved in the fluid, bubbles are generated and the energy of the ejected fluid is reduced. This is to prevent it. As another reason, when air is mixed in the fluid pressurized by the pressure increasing unit 3 in a bubble state, the volume does not change even if water is compressed, but if the gas is mixed, the gas contracts. Therefore, a compression buffering action is caused and energy transmission is hindered, but this is to prevent this.

  The operation of the first booster 5 will be described in detail with reference to FIGS. Here, the operation of the first piston 32 on the A side will be described, but the operation of the first piston 42 on the B side is opposite to that of the first piston 32 on the A side. The detailed description is omitted here for the same operation.

The first booster 5 repeats Step 1 shown in FIG. 6 and Step 2 shown in FIG. 7, thereby serving as a primary booster for water that is the ejected fluid and a drive source for the second booster 6. Generation of hydraulic pressure and degassing of gas components dissolved in water. First, in step 1 shown in FIG. 6, when the first piston 32 is pushed, the oil liquid in the hydraulic cylinder chamber 33 is compressed and pushed, and the oil liquid flows in the Fo1 direction in FIG. Then, it is guided to a hydraulic pressure transmission cylinder chamber 61 described later. At this time, normal pressure water is injected into the primary pressurizing chamber 34, and the injected water is decompressed by closing the water inlet electromagnetic valve 35 at an appropriate position, and the dissolved gas becomes the bubble A _1. appear.

Next, in Step 2 shown in FIG. 7, the operation of pulling the first piston 32 in FIG arrow X ₄ direction, which is the sliding direction of the piston. At this stage, gas is separated from water and gas by utilizing the lighter nature than water. This gas gathers further from the primary pressure increasing chamber 34 at the end portion of the first cylinder 31 and is exhausted at once when pushed by the first piston 32 and opens the deaeration electromagnetic valve 36. On the other hand, the primary pressurized water obtained by degassing and being compressed by the first piston 32 is pushed out from the check valve 37 and sent to the primary pressurized water tank 51 for storage. Further, the primary compressed water is finally radiated as ultra-high pressure water through a subsequent pressurization process. At that time, a large water pressure that is not affected by the gas in water can be obtained.

  The first pressurizing unit 5 having the above-described configuration is capable of simultaneously performing the primary pressurization of water, the degassing process of the gaseous components in the water, and the compression of the hydraulic pressure through both piston surfaces of the same piston. An efficient and inexpensive device can be realized.

  As shown in FIG. 5, the second booster 6 is formed into a pair of cylinders, each of which is filled with an oil liquid for transmitting driving force on one side and an oil liquid for returning on the other side. A pair of second pistons 62, 72 having a driving force transmission cylinder 60, 70, a hydraulic transmission piston portion 63, 73 that reciprocates in the driving force transmission cylinder 60, 70, and a driving force transmission cylinder Formed in a cylinder formed integrally with 60, 70, formed in a secondary pressure increasing chamber 67, 77 for performing a secondary pressure increase of water, and a cylinder formed integrally with the driving force transmission cylinders 60, 70, And third boosting chambers 84 and 94 for performing third boosting.

  The driving force transmission cylinders 60 and 70 are respectively connected to the hydraulic cylinder chambers 33 and 43 and the connecting pipes 38 and 48 on one side of the hydraulic transmission piston portions 63 and 73, respectively, for transmitting the driving force. The liquid is filled and functions as the hydraulic transmission cylinder chambers 61 and 71, and the other side of the hydraulic pressure transmission piston parts 63 and 73 is filled with the return oil and functions as the auxiliary cylinder chambers 66 and 76.

  The pair of auxiliary cylinder chambers 66 and 76 are connected by a return oil / liquid connecting pipe 80 so that the return oil / liquid filled with each other can be circulated.

  The second pistons 62, 72 transmit hydraulic pressure for reciprocating the second pistons 62, 72 by the hydraulic pressure of the oil liquid that has been boosted and depressurized by the hydraulic cylinder chambers 33, 43 of the first booster 5. Piston portions 63, 73, secondary pressure increasing piston portions 64, 74 reciprocating in the secondary pressure increasing chambers 67, 77, and tertiary pressure increasing piston portions 65, 75 reciprocating in the third pressure increasing chambers 84, 94; And are integrally formed.

  Since the secondary boost piston portions 64 and 74 and the tertiary boost piston portions 65 and 75 are formed integrally with the hydraulic pressure transmission piston portions 63 and 73, the hydraulic pressure transmission piston portions 63 and 73 are driven. Driven by the same distance in the same direction.

  The hydraulic pressure transmission piston parts 63 and 73 of the second pistons 62 and 72 are formed such that the area of the surface orthogonal to the driving direction is larger than the area of the piston parts of the first pistons 32 and 42.

  Further, the area of the surface perpendicular to the drive direction of the secondary boost piston parts 64 and 74 is formed smaller than the area of the hydraulic pressure transmission piston parts 63 and 73. The area of the surface orthogonal to the driving direction of the tertiary boost piston portions 65 and 75 is formed smaller than the area of the secondary boost piston portions 64 and 74.

  The secondary pressurizing chambers 67 and 77 of the second pressurizing unit 6 are reciprocated while the secondary pressurizing pistons 64 and 74 of the second pistons 62 and 72 are slid in the primary pressurizing water. Is injected or the primary pressurized water is compressed to generate secondary pressurized water. Thus, the secondary boosting piston portions 64 and 74 of the second pistons 62 and 72 and the secondary boosting chambers 67 and 77 function as a secondary boosting pump.

  In the secondary boosting chambers 67 and 77, water injection electromagnetic valves 68 and 78 for injecting the primary boosted water into the cylinder, and check valves 69 for sending the boosted secondary boosted water to the next step, 79 is provided.

  In addition, the second booster 6 includes primary boosted water pipes 81 and 91 for connecting the secondary boosted chambers 67 and 77 to the primary boosted water tank 51 via the water injection electromagnetic valves 68 and 78, and a check Secondary boosted water pipes 82 and 92 connected to the secondary boosted chambers 67 and 77 through valves 69 and 79 and the secondary boosted water pipes 82 and 92 are connected to the secondary boosted water pipes 82 and 92. And a secondary pressurized water tank 83 for storing before being sent to the chambers 84 and 94.

  The secondary boosting power of the second boosting unit 6 and the tertiary boosting power described later are connected to the fluid that has been boosted in the process in which the first pistons 32 and 42 of the first boosting unit 5 are reciprocated. This is the pressure of the hydraulic fluid flowing into and out of the hydraulic pressure transmission cylinder chambers 61 and 71 through the pipes 38 and 48. For example, the hydraulic cylinder flows from the hydraulic cylinder chamber 33 to the hydraulic transmission cylinder chamber 61 through the connection pipe 38 and pushes the second piston 62, and on the contrary, from the hydraulic transmission cylinder chamber 71 to the hydraulic cylinder through the connection pipe 48. This is the B-side pull pressure that flows out into the chamber 43 and pulls the other second piston 72.

  As the hydraulic pressure for pressing the second pistons 62 and 72, an oil liquid having a pressure of about several megapascals is used. This operation is repeated alternately on the A side and the B side as long as push-pull power is applied to the first booster 5.

  The operation of the second boosting unit 6 that performs the secondary boosting includes the step of injecting the primary boosted water into the secondary boosting chambers 67 and 77 and the compression for generating the secondary boosted water by compressing the primary boosted water. When one of the cylinders constituting the pair of secondary pressurizing chambers 67 and 77 performs a water injection operation, the other cylinder performs a compression operation.

In the injection step, the primary boosted water stored in the primary pressurized water tank 51 is connected to the A-side primary pressurized water injection electromagnetic valve 68, and when the water injection electromagnetic valve 68 is opened, the secondary pressurization chamber 67 is opened. The primary pressurized water is injected as shown at Fw ₂₁ .

On the other hand, secondary boosting is performed in the secondary boosting chamber 77 on the B side. When the pressure of the secondary boosted water exceeds a predetermined value, the secondary boosted water pushes the check valve 79 and is stored in the secondary boosted water tank 83 through the connecting pipe as indicated by Fw ₂₂ .

The second pistons 62 and 72 of the second boosting unit 6 play a role of preventing the generation of bubbles in the oil liquid in the hydraulic transmission cylinder chambers 61 and 71 as a driving source together with the secondary boosting and the tertiary boosting. At the same time, it plays these three roles. For example, the A side, a second piston 62 which is driven in FIG. 5 arrow X ₅ direction as described above, pushes the hydraulic fluid on the other side of the auxiliary cylinder chamber 66 at the same time.

The extruded hydraulic fluid of the auxiliary cylinder chamber 66 flows into the auxiliary cylinder chamber 76 of the other one (B side), the second piston 72 of the other one (B side) acts in the arrow X ₆ direction in FIG. 5 Help.

First piston 42 is a hydraulic transmission cylinder chamber 71 when moving in the arrow X ₄ direction in FIG. 5 of the first booster 5, the hydraulic cylinder chamber 43 is drawn into the vacuum, the feedback hydraulic fluid auxiliary cylinder chamber 66 5 flows into the auxiliary cylinder chamber 76 in the direction of the arrow Fo _{2 in} FIG. 5, and this feedback oil fluid is simultaneously supplied to the oil fluid in the hydraulic transmission cylinder chamber 71 via the hydraulic pressure transmission piston portion 73 in FIG. Extrude in ₃ directions. As a result, generation of bubbles in the hydraulic cylinder chamber 43 and the hydraulic transmission cylinder chamber 71, which is a drawback of the hydraulic cylinder system, can be prevented.

  The secondary pressure increasing chambers 84 and 94 of the second pressure increasing portion 6 are reciprocated while the tertiary pressure increasing piston portions 65 and 75 of the second pistons 62 and 72 are slid inwardly, so that the secondary pressure increasing water is supplied. Or the secondary boosted water is compressed to generate tertiary boosted water.

  In the third pressurizing chambers 84 and 94, secondary pressurized water injection electromagnetic valves 85 and 95 for injecting the secondary boosted water into the cylinder and the boosted tertiary boosted water are sent to the injection unit 2. Check valves 86 and 96 for ultra-high pressure water.

  In addition, the second boosting unit 6 includes the secondary boosting chambers 3 and 3 of the cylinders constituting the secondary boosting chamber and the tertiary boosting chamber between the tertiary boosting chambers 84 and 94 and the secondary boosting chambers 67 and 77. Air vents 87 and 97 for circulating air in the region between the next pressurizing chambers are provided.

  In addition, the second boosting unit 6 includes secondary boosted water pipes 88 and 98 for connecting the tertiary boosted chambers 84 and 94 to the secondary boosted water tank 83 via the water injection electromagnetic valves 85 and 95, and a check. And tertiary boosted water pipes 89 and 99 connected to the injection unit 2 through valves 86 and 96.

  The third booster pistons 65 and 75 of the third booster chambers 84 and 94 and the second pistons 62 and 72 generate tertiary boosted water that is an ultra-high pressure pulsed water jet. In this portion, when the tertiary boosting chamber (A side) 84 performs the boosting operation, the tertiary boosting chamber (B side) 94 performs the water injection operation. Thus, the tertiary boosting piston portions 65 and 75 of the second pistons 62 and 72 and the tertiary boosting chambers 84 and 94 function as a tertiary boosting pump.

  In the second piston 62, a secondary boosting piston part 64 and a tertiary boosting piston part 65 are integrally formed, and simultaneously operate in the same direction. The second piston 72 has a secondary boosting piston portion 74 and a tertiary boosting piston portion 75 integrally formed, and simultaneously operates in the same direction and in the opposite direction to the second piston 62.

  The third pressurizing chambers 84 and 94 and the third pressurizing piston portions 65 and 75 synchronize with the push operation of the second pistons 62 and 72 as described above to supply the third pressurizing water that is a pulsed high-pressure fluid. Generate. That is, for example, when the second piston 62 is driven in the direction of arrow X in FIG. 5, in synchronization with this operation, in other words, in synchronization with the first piston 32 that drives the second piston 62. The third pressure increase water (water jet) having a uniform pressure is instantaneously emitted for the time when the second piston 62 is driven. Here, the above-described pulse width is the time when the second piston 62 is driven in the push direction, that is, the time when the first piston 32 is driven in the push direction.

Thus, the hydraulic by a secondary boost water second piston 62, 72 is water injection tertiary pressurization chamber 84, 94 is pushed in Fig. 5 arrow X ₅ direction, tertiary boosted compressed into ultra high pressure It is made with water. The compressed tertiary pressurized water is injected by pushing the ultrahigh pressure check valves 86 and 96 open as indicated by Fw ₃₁ .

On the B side, secondary boosted water is supplied from the secondary boosted water tank 83 to the tertiary boosting chamber 94 through the water injection electromagnetic valve 95 as indicated by Fw ₃₂ .

  Next, a method for reducing the generation of gas in the oil liquid generated during the pull operation and increasing the pressure increase efficiency in the push-pull operation of the second pistons 62 and 72 using the hydraulic pressure in the second pressure increase unit 6. explain.

  In order to reduce energy loss in the drive source of the second booster 6 that performs secondary and tertiary boosting, that is, in the hydraulic transfer cylinder chambers 61 and 71 serving as energy transfer units, Auxiliary cylinder chambers 66, 76 are provided on the opposite sides of the second pistons 62, 72, respectively. The auxiliary cylinder chambers 66, 76 are connected by a return fluid connection pipe 80, and are connected to the auxiliary cylinder chambers 66, 76. The structure is filled with oil solution for return. Hereinafter, details of this structure and its operation will be described with reference to FIG.

The return oil liquid fills the space of the auxiliary cylinder chambers 66 and 76, and moves back and forth between the auxiliary cylinder chamber 66 and the auxiliary cylinder chamber 76 via the return oil liquid connection pipe 80. When the A side is in a push operation, the B side is in a pull operation. In the pulling operation, the oil pressure in the oil pressure transmission cylinder chambers 61 and 71 is reduced, and the gas component contained in the oil liquid is foamed. When air bubbles are contained in the oil liquid, the air bubbles become a compression cushion, and efficient compression becomes impossible. In order to reduce this foaming, the liquid pushes the second pistons 62 and 72 to prevent the hydraulic pressure from being lowered in the pulling operation.

As a structure for realizing this function, the driving force transmission cylinders 60 and 70 may be connected by a pipe. However, as shown in FIG. A structure with low cost and high performance is achieved by allowing the return fluid to circulate freely in the direction of arrow Fo ₂ in FIG. 8 or in the opposite direction by the operation of both pistons 62 and 72. Can do.

  Next, the second pistons 62 and 72 are integrally formed with two secondary boosting piston portions 64 and 74 and tertiary boosting piston portions 65 and 75 that perform secondary boosting and tertiary boosting, thereby forming water. The improvement of the step-up efficiency will be described.

  The second pistons 62 and 72 operate using the pressure of the oil liquid compressed by the first pressure raising unit 5. In a piston driven by hydraulic pressure, when the pressure is constant, the force is amplified using the principle that the output is proportional to the area. On the other hand, the relationship between the secondary pressure increase and the tertiary pressure increase by the second pistons 62 and 72 in which the secondary pressure increasing piston portion and the tertiary pressure increasing piston portion are integrally formed is such that when the force is constant, the pressure is opposite to the area. The pressure is amplified using the principle of proportionality.

  Specifically, for example, using the A side, the hydraulic pressure transmission piston portion 63 of the second piston 62 supplies the oil liquid compressed by the first piston 32 and the hydraulic cylinder chamber 33 via the connection pipe 38. Is driven. The area of the piston surface of the hydraulic pressure transmission piston 63 is larger than the area of the piston surface of the first piston 32. In the case of the second piston 62 driven by hydraulic pressure, when the pressure is constant, the output uses the principle proportional to the area, so that the force can be amplified.

  In the second piston 62, the area of the piston surface of the secondary boosting piston part 64 is smaller than the area of the piston surface of the hydraulic pressure transmission piston part 63, and the area of the piston surface of the tertiary boosting piston part 65 is The area of the piston surface of the secondary boost piston portion 64 is further smaller than that of the piston. Since the force is constant in the integrally formed second piston 62, the pressure is inversely proportional to the area, so the pressure generated in the secondary boosting piston 64 is amplified. The pressure generated in the tertiary boosting piston portion 65 is further amplified, and in the secondary boosting piston portion 64 and the secondary boosting chamber 67, the primary boosted water can be further compressed into secondary boosted water. Further, in the tertiary boosting piston portion 65 and the tertiary boosting chamber 84, the secondary boosted water can be further compressed into tertiary boosted water that is an ultra-high pressure fluid. In addition, although demonstrated using the A side here, it is the same also in the B side.

FIG. 9 is a cross-sectional view of one of the pair of cylinders of the second booster 6 (A side). The second piston 62 is integrally formed, and is formed by directly connecting a hydraulic pressure transmission piston portion 63, a secondary boost piston portion 64, and a tertiary boost piston portion 65 so that the force at each portion is constant. . When the first piston 32 and the first cylinder 31 push the oil in the direction of arrow Fo _{1 in} FIG. 9, the oil flows into the hydraulic transmission cylinder chamber 61, and the hydraulic transmission piston 63 of the second piston 62 is moved. Push. Since the hydraulic pressure transmission piston portion 63, the secondary boost piston portion 64, and the tertiary boost piston portion 65 are integrally connected, the force of the second piston 62 remains as it is in the secondary boost water and the ultra high pressure boost water. It is transmitted to some tertiary boosted water. At this time, the air A ₄ in the cylinders constituting the secondary boosting chamber and the tertiary boosting chamber is discharged to the outside through the air vent 87.

  By integrating the hydraulic pressure transmission piston portion 63 that transmits the hydraulic pressure, the secondary boost piston portion 64, and the tertiary boost piston portion 65, a compact, lightweight, and economical boost structure can be realized.

  Thus, the cutting and cutting apparatus 1 to which the present invention is applied is an apparatus using pulsed water pressure that injects pulsed ultra-high pressure water and performs cutting of an object in synchronization with the compression cycle of the boosting piston. is there.

  That is, the cutting / cutting device 1 includes an injection unit 2 that injects fluid to an object to be cut, and a pressurization unit 3 that pressurizes fluid supplied to the injection unit 2 by compressing the pressurizing pistons 32, 42, 62, and 72 In synchronism with the period of the compression operation of the boosting piston, the cutting object is cut by injecting a pulsed high-pressure fluid from the injection unit 2, which is conventionally necessary. There is no need to route high-pressure water pipes or reserve tanks. Furthermore, the cutting / cutting device 1 can greatly increase the pressure-increasing efficiency of water, and can realize a water jet cutting device that is inexpensive and portable with small power, realizing safe and speedy cutting / cutting, For example, it is possible to improve the efficiency of processed products such as marble tiles.

  As described above, the present invention greatly improves the efficiency for obtaining ultra-high pressure water, realizes driving with about 1/10 of the power compared to conventional devices, and makes the water jet easy to carry. A cutting / cutting apparatus of the type is realized. The cutting and cutting apparatus 1 to which the present invention is applied is a cutting apparatus with a small power by increasing efficiency several times or more as compared with the conventional system by many inventions for improving efficiency in the water compression system and compression process. Made possible. As a result, it is possible to create a device that can be reduced in size and portable to a construction site.

  The present invention is not limited to the above-described embodiments described with reference to the drawings, and various modifications, substitutions or equivalents thereof can be made without departing from the scope and spirit of the appended claims. It will be apparent to those skilled in the art that this can be done.

It is a figure which shows typically the structure of the 1st system of the cutting cutting device using the conventional water jet. It is a figure which shows typically the structure of the 2nd system of the cutting cutting device using the conventional water jet. It is a figure which shows typically the basic composition of the cutting device to which this invention was applied . It is a perspective view which shows the power part which comprises the cutting cutting device to which this invention is applied. It is a general view of the pressure | voltage rise part which comprises the cutting cutting device to which this invention is applied. It is sectional drawing which shows the state in which the water was inject | poured and the bubble generate | occur | produced when the piston of the 1st pressure | voltage rise part which comprises a cutting / cutting apparatus pushed. It is sectional drawing which shows the state which deaerates the bubble which generate | occur | produced in the water at the time of the piston of a 1st pressure | voltage rise part pulled, and supplies primary pressure | voltage rise water to the following process. It is sectional drawing which shows the 2nd pressure | voltage rise part which comprises the cutting cutting device. It is sectional drawing which shows one cylinder of a 2nd pressure | voltage rise part.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Cutting cutting device, 2 Injection part, 3 Pressure | voltage rise part, 4 Power part, 5 1st pressure | voltage rise part, 6 2nd pressure | voltage rise part, 8 Primary pressure | voltage rise water piping, 9 Oil pressure transmission piping, 31, 41 1st cylinder 32, 42 1st piston, 33, 43 Hydraulic cylinder chamber, 34, 44 Primary booster chamber, 35, 45 Water inlet solenoid valve, 36, 46 Deaeration solenoid valve, 51 Primary booster tank, 60, 70, driving force transmission cylinder, 61, 71 hydraulic transmission cylinder chamber, 62, 72 second piston, 63, 73 hydraulic transmission piston part, 64, 74 secondary boosting piston part, 65, 75 tertiary boosting piston part, 66, 76 Auxiliary cylinder chamber, 67,77 Secondary pressurizing chamber, 80 Return hydraulic fluid connection piping, 83 Secondary pressurized water tank, 84,94 Tertiary boosting chamber

Claims (5)

An injection unit for injecting a fluid to a workpiece;
A pressurizing unit that has a boosting piston and pressurizes the fluid supplied to the injection unit by a compression operation of the boosting piston;
In the cutting and cutting apparatus for cutting or cutting the workpiece by injecting a pulsed high-pressure fluid from the injection unit in synchronization with the period of the compression operation of the boosting piston,
The boosting unit includes a boosting cylinder that is slidably disposed inside the boosting piston, a water injection valve, and a deaeration valve. The boosting piston is slid in one direction. When injecting the fluid into the boosting cylinder, the water injection valve is closed to reduce the pressure in the boosting cylinder to generate gas components in the fluid as bubbles, and the boosting piston is A cutting and cutting device that opens the degassing valve and discharges the bubbles when the fluid inside the pressure increasing cylinder is increased in pressure by sliding in a direction.   The boosting unit is formed integrally with the hydraulic piston unit driven by hydraulic pressure, the first piston unit formed to be smaller than the hydraulic piston unit, and integrally formed with the hydraulic piston unit. And a second piston part having an area smaller than that of the first hydraulic piston part. The hydraulic piston part is moved by the hydraulic pressure so that the fluid is moved by the first piston part. The cutting / cutting device according to claim 1, wherein the pressure is increased and the second piston portion simultaneously increases the pressure of the fluid at a higher pressure in a pulsed manner.   The booster is driven by a pair of cylinders, a pair of pistons that are driven by hydraulic pressure and alternately perform a push operation and a pull operation in the pair of cylinders, and the hydraulic pressure of the pair of pistons of the pair of cylinders. 2. A return oil liquid charged on a side opposite to the side, and a connecting pipe that connects the return oil liquid of the pair of cylinders so that the return oil liquid can circulate. Cutting device. The power unit of the boosting unit is engaged with the pinion that is rotated, the first rack that is engaged with the pinion and moved by the rotation of the pinion, and the pinion that is engaged with the pinion. A second rack that is operated to move in the opposite direction to the first rack;
The boosting unit has a pair of boosting pistons, and the pair of boosting pistons is driven by the linear motion of the first and second racks to compress the fluid to generate a pulsed high-pressure fluid. The cutting / cutting device according to claim 1. The power unit has an electromagnetic or mechanical clutch that transmits a rotational driving force to the pinion,
5. The clutch according to claim 4, wherein the clutch controls the cutting / cutting speed on / off and the cutting / cutting speed by controlling a pulse width of a high-pressure fluid of a pulse to be controlled by the boosting unit by electrical or mechanical control. Cutting and cutting device.