WO2017042686A1 - Pressurized-fluid abrasive cutting apparatus - Google Patents

Pressurized-fluid abrasive cutting apparatus Download PDF

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Publication number
WO2017042686A1
WO2017042686A1 PCT/IB2016/055313 IB2016055313W WO2017042686A1 WO 2017042686 A1 WO2017042686 A1 WO 2017042686A1 IB 2016055313 W IB2016055313 W IB 2016055313W WO 2017042686 A1 WO2017042686 A1 WO 2017042686A1
Authority
WO
WIPO (PCT)
Prior art keywords
injectors
cutting apparatus
pressurized fluid
pressurized
fluid
Prior art date
Application number
PCT/IB2016/055313
Other languages
French (fr)
Inventor
Leomar ACOSTA
Nicholas Benjamin BELIZ OSORIO
Abdiel Osvan Pino
Ignacio Jacinto CHANG
Original Assignee
Universidad Tecnológica De Panamá
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Universidad Tecnológica De Panamá filed Critical Universidad Tecnológica De Panamá
Publication of WO2017042686A1 publication Critical patent/WO2017042686A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
    • B24C3/06—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other movable; portable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
    • B24C1/045—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass for cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
    • B24C5/04—Nozzles therefor
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

The invention comprises a pressure unit to provide pressure to a fluid; a power supply; a plurality of injectors, to produce an abrasive cut by means of the pressurized fluid; at least one transport hose to distribute the pressurized fluid to the injectors; and a handling device, to be held and handled by a user. The injectors are supported in the handling device. It enables faster cutting and in addition reduces noise.

Description

PRESSURIZED-FLUID ABRASIVE CUTTING APPARATUS
OBJECT OF THE INVENTION
The present invention relates to machines, tools or auxiliary devices for building or repairing roads or similar structures. Specifically, it consists of an abrasive cutting apparatus using pressurized fluid.
BACKGROUND OF THE INVENTION
When cutting the cement of streets and sidewalks for repair or construction work, segmented diamond metal disks and continuous disks are used (US3863401A and US3763601A), producing extremely intense noise that affects the surrounding area by bothering and harming the people in the areas adjacent to the work site.
DESCRIPTION OF THE INVENTION
The present invention describes a pressurized-fluid abrasive cutting apparatus, which is equipped with several injectors for cutting. More specifically, the cutting apparatus comprises at least two injectors to inject pressurized fluid, in order to make abrasive cuts in roads, sidewalks, walls and similar structures.
The invented cutting apparatus enables cuts to be made at different required depths. Likewise, the cutting apparatus is portable, and incorporates a safety and protection mechanism.
The device need not be shut down to restock the fluid used for cutting, since said fluid may be placed in pressurized tanks that are easily changed out, once the fluid contents therein run out, making it a continuous process.
It likewise does not generate mechanical fractures or heat stress in the material surrounding the cut.
The depth and width of the cut depends on the output diameter of the injector and the final pressure of the device. DESCRIPTION OF THE DRAWINGS
In order to complement the description being made and with the object of helping to better understand the characteristics of the invention, in accordance with a preferred practical embodiment thereof, said description is accompanied, as an integral part thereof, by a set of drawings where, in an illustrative and non-limiting manner, the following has been represented:
Figure 1 is a schematic diagram of the cutting apparatus for injecting high- pressure fluids with its respective components.
Figures 2A to 2E show a close-up view of an injector (figure 2A), and various examples of the configuration of the injectors (figures 2B to 2E).
PREFERRED EMBODIMENT OF THE INVENTION
What is offered below, with the help of the aforementioned figures 1 and 2A-2E, is a detailed description of a preferred exemplary embodiment of a pressurized-fluid abrasive cutting apparatus, in accordance with the present invention.
Figure 1 is a schematic diagram of the high-pressure abrasive cutting apparatus , with the components thereof. The cutting apparatus comprises: a pressure unit (1), which preferably has a pump, to keep the fluid pressurized; a power supply; a plurality of injectors (4, 14, 24, 34, 44), to produce an abrasive cut by means of the pressurized fluid; at least one transport hose (2) to distribute the pressurized fluid to the injectors (4, 14, 24, 34, 44); and a handling device (3), to be held and handled by a user, wherein the injectors (4, 14, 24, 34, 44) are supported in the handling device (3).
The cutting apparatus may additionally incorporate pressurized tanks, for example high-pressure cylinders, connected to the pressure unit (1) and to the transport hose or hoses (2), to house the pressurized fluid.
It may also incorporate, as protection means, a cooling mechanism to cool the injectors (4, 14, 24, 34, 44), such as a cooling circuit (not shown), whether in contact with the ends of the injectors (4, 14, 24, 34, 44) that are housed in the handling body (3), or else running along inside the walls of the injectors (4, 14, 24, 34, 44). The cutting apparatus may further incorporate wheels (5) in order to move.
Figure 2A is a front view of one of the injectors (4). The injectors (4) are preferably addressable in order to orient and focus the pressurized fluid at the spot where one wishes to make the cut. Likewise, the injector (4) may be inserted in the handling device (3). The injectors (4) may be arranged in different ways in accordance with the following configurations, in order to adapt to the cutting needs in each particular case, as shown in figures 2B to 2E.
A first configuration, in accordance with figure 2B, shows two first injectors (14) arranged in line and working in series. Of the two first injectors (4a), one of them cuts first to a predetermined depth, while the other first injector (4a) continues with the cut, reducing the cutting time.
A second configuration, in accordance with figure 2C, shows two second injectors (24) in parallel, as shown in figure 2, from above. When they are moved in the direction of the arrow, the cut will generate a strip.
A third configuration, in accordance with figure 2D, shows four third injectors
(34), wherein two of said third injectors (4c) cut first to a predetermined depth, and the other two third injectors (4c) that follow finish the cut.
Lastly, a fourth configuration, in accordance with figure 2E, shows four fourth injectors (44) acting to cut blocks. First, the four fourth injectors (4d), acting simultaneously, perforate the material to cut, and then produce streams that weaken the material, forcing it to break into a block shape.
The cutting apparatus in accordance with the invention is equipped with safety means of the sort commonly used in shop and or construction machinery. Specifically, if a malfunction is detected, the device is configured to shut down automatically, and optionally to show some indication (acoustic or visual) identifying the malfunction. Likewise, the use of protective face masks is recommended, in order to protect the user's eyes while cutting.

Claims

1. A pressurized-fluid abrasive cutting apparatus, comprising:
- a pressure unit to provide pressure to a fluid;
- a power supply;
- a plurality of injectors, to produce an abrasive cut by means of the pressurized fluid;
- at least one transport hose to distribute the pressurized fluid to the injectors; and
- a handling device, to be held and handled by a user, wherein the injectors are supported in the handling device.
2. The cutting apparatus of claim 1 , wherein the injectors comprise two first injectors arranged in line, and working in series, the injectors being positioned so as to first enable one of the first injectors to cut to a predetermined depth, while the other first injector cuts thereafter.
3. The cutting apparatus of claim 1 , wherein the injectors comprise two second injectors arranged in parallel connection to generate a strip during cutting.
4. The cutting apparatus of claim 1 , wherein the injectors comprise four third injectors positioned so as to enable two of said third injectors (4c) to cut first to a predetermined depth, and the other two third injectors (4c) to cut subsequently.
5. The cutting apparatus of claim 1 , wherein the injectors comprise four fourth injectors positioned so as to simultaneously cut, and produce blocks of cut material.
6. The cutting apparatus of claim 1 , wherein the pressure unit comprises a pump to provide pressure to the fluid.
7. The cutting apparatus of claim 1 , further comprising pressurized tanks, connected to the pressure unit and to the transport hose or hoses, to store the pressurized fluid.
8. The cutting apparatus of claim 7, further comprising pressurized tanks, connected to the pump and to the transport hose or hoses, to store the pressurized fluid.
9. The cutting apparatus of claim 1 , wherein the injectors addressable in order to focus the pressurized fluid.
10. The cutting apparatus of claim 2, wherein the injectors are addressable in order to focus the pressurized fluid.
1 1. The cutting apparatus of claim 3, wherein the injectors are addressable in order to focus the pressurized fluid.
12. The cutting apparatus of claim 4, wherein the injectors are addressable in order to focus the pressurized fluid.
13. The cutting apparatus of claim 5, wherein the injectors are addressable in order to focus the pressurized fluid.
14. The cutting apparatus of claim 1 , wherein a portion of the injectors is inserted in the handling device.
15. The cutting apparatus of claim 1 , further comprising wheels for movement.
16. The cutting apparatus of claim 1 , further comprising a cooling mechanism to cool the injectors.
PCT/IB2016/055313 2016-07-05 2016-09-06 Pressurized-fluid abrasive cutting apparatus WO2017042686A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PA9121301 2016-07-05
PA91213 2016-07-05

Publications (1)

Publication Number Publication Date
WO2017042686A1 true WO2017042686A1 (en) 2017-03-16

Family

ID=62791437

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2016/055313 WO2017042686A1 (en) 2016-07-05 2016-09-06 Pressurized-fluid abrasive cutting apparatus

Country Status (1)

Country Link
WO (1) WO2017042686A1 (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3815883A (en) * 1971-12-23 1974-06-11 Chemetron Corp Method and apparatus for controlling heat effect in metal cutting operations
US4204715A (en) * 1976-11-24 1980-05-27 Atlas Copco Aktiebolag Method and device for breaking a hard compact material
US4534427A (en) * 1983-07-25 1985-08-13 Wang Fun Den Abrasive containing fluid jet drilling apparatus and process
EP0221730A1 (en) * 1985-10-22 1987-05-13 Electric Power Research Institute, Inc Abrasive entrained high pressure fluid jet apparatus and method of use
US4683684A (en) * 1985-10-22 1987-08-04 Electric Power Research Institute, Inc. High pressure fluid jet apparatus for cutting and removing pavement
US5574244A (en) * 1994-11-16 1996-11-12 Associated Universities, Inc. Hypervelocity cutting machine and method
US6615849B1 (en) * 1999-11-16 2003-09-09 John William Gilman Tank cleaning system
US20100210186A1 (en) * 2009-02-18 2010-08-19 Lai International, Inc. Multi-head fluid jet cutting system
US8425517B2 (en) * 2004-12-29 2013-04-23 Depuy Mitek, Inc. Abrasive cutting system and method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3815883A (en) * 1971-12-23 1974-06-11 Chemetron Corp Method and apparatus for controlling heat effect in metal cutting operations
US4204715A (en) * 1976-11-24 1980-05-27 Atlas Copco Aktiebolag Method and device for breaking a hard compact material
US4534427A (en) * 1983-07-25 1985-08-13 Wang Fun Den Abrasive containing fluid jet drilling apparatus and process
EP0221730A1 (en) * 1985-10-22 1987-05-13 Electric Power Research Institute, Inc Abrasive entrained high pressure fluid jet apparatus and method of use
US4683684A (en) * 1985-10-22 1987-08-04 Electric Power Research Institute, Inc. High pressure fluid jet apparatus for cutting and removing pavement
US5574244A (en) * 1994-11-16 1996-11-12 Associated Universities, Inc. Hypervelocity cutting machine and method
US6615849B1 (en) * 1999-11-16 2003-09-09 John William Gilman Tank cleaning system
US8425517B2 (en) * 2004-12-29 2013-04-23 Depuy Mitek, Inc. Abrasive cutting system and method
US20100210186A1 (en) * 2009-02-18 2010-08-19 Lai International, Inc. Multi-head fluid jet cutting system

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