US3815884A - Cutting apparatus for large plates - Google Patents
Cutting apparatus for large plates Download PDFInfo
- Publication number
- US3815884A US3815884A US00318490A US31849072A US3815884A US 3815884 A US3815884 A US 3815884A US 00318490 A US00318490 A US 00318490A US 31849072 A US31849072 A US 31849072A US 3815884 A US3815884 A US 3815884A
- Authority
- US
- United States
- Prior art keywords
- large plate
- rails
- longitudinal
- rail
- cutting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/002—Machines, apparatus, or equipment for cutting plane workpieces, e.g. plates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/525—Operation controlled by detector means responsive to work
- Y10T83/538—Positioning of tool controlled
Definitions
- a cutting apparatus for large plates which mainly comprises a pair of rails disposed along the ends of a large plate and extending in the longitudinal direction thereof, a pair of cutting machines mounted on the rails to travel thereon, and a deviation detector for detecting the amount of deviation of position of a stopped large plate, whereby in accordance with the value of a detected deviation, the two rails are rotated in a parallel relation over the surface of the large plate to determine the cutting lines along the ends of the large plate, and the cutting devices are then brought into operation to remove the desired amount from both ends of the plate to produce the parallel ends.
- the present invention generally relates to cutting apparatus for large plates and more particularly to a cutting apparatus which is designed to cut large plates such as skin or shell plates used as hull blocks with a higher efficiency and great accuracy.
- It is another object of the present invention to provide a cutting apparatus for large plates comprising a pair of rails respectively disposed on each side of a conveyance device such as a roller conveyor for transporting large plates, that is, in the vicinity of each end of a large plate and rotatable in a plane, a deviation detector for detecting deviation of position of a large. plate and a stopper arranged between the ends of the rails (stopper line), a rotation detector provided for each of the rails, and a cutting device mounted on each of the rails to travel therealong.
- a conveyance device such as a roller conveyor for transporting large plates
- the deviation detector detects the deviation of the stopping position of the large plate from a desired position. More particularly. it detects the deviation between the center line of the conveyance device and the center line of the large plate stopped on the conveyance device. so that at least one of the longitudinal rails on both sides of the large plate is moved in accordance with the detected deviation with respect to the width of the large plate and at the same time both of the longitudinal rails are located to adjust the positions thereof so as to reposition the rails substantially perpendicular to the seams in the large plate and thereafter to cause the cutting device on each of the longitudinal rails to travel therealong to cut the ends of the large plate.
- FIG. 1 is a diagrammatic plan view showing the general construction of a large plate cutting apparatus according to the present invention
- FIG. 2 a front elevation of FIG. 1;
- FIG. 3 is a sectional view taken along the line III-Ill of FIG. 1, showing in detail the pivot portion at the center of the fixed rail;
- FIG. 4 is a sectional view taken along the line IVIV of FIG. 1, showing in detail the pivot portion at each end of the fixed rail;
- FIG. 5 is an enlarged view of the section A in FIG. 2, showing in detail the supporting structure of the cutting device;
- FIG. 8 is a perspective view of a large plate which may be subjected to the cutting operation by the apparatus of the present invention.
- a large plate 1 which may be subjected to a cutting operation by the apparatus of the present invention is composed of a plurality of unit plates 2 cut out and welded preliminarily by separate processes and apparatus.
- a large plate as shown in FIG. 8, its longitudinal ends 3 and 4 tend to become uneven and therefore it is necessary to trim the ends 3 and 4 to produce the parallel ends 3 and 4 along the lines X and Y as the cutting lines.
- the large plate 1 is moved over conveyance means 5 and 6, such as, rollers from the direction of the broken line arrow in FIG. 1 and it is fed into a large plate cutting apparatus according to the present invention.
- the center line of the large plate 1 thus fed to the apparatus does not necessarily coincide with the center line of the conveyance device. Accordingly, the placement of the large plate is confirmed by a deviation detector that will be explained later, so that longitudinal rails are rotated according to the detected deviation.
- the term large plate means a large steel plate, but the present invention is not intended to be limited to the steel plate and any material which must be cut to produce parallel ends may be subjected to the cutting operation by the apparatus according to the present invention.
- the terms longitudinal and transverse are also used to indicate respectively the longitudinal direction and the transverse direction in FIG. 7.
- the large plate 1 fed into the large plate cutting apparatus is positioned by means of a stopper (not shown) of a known type which is arranged at a stopper line 7.
- a stopper (not shown) of a known type which is arranged at a stopper line 7.
- transverse rails 8, 9 and 10 Disposed on one side of the conveyance means 6 are transverse rails 8, 9 and 10 which are arranged substantially perpendicular to the conveyance means 6, and tables l1, l2 and 13 movable from side to side are 3 provided respectively on the transverse rails.
- a longitudinal rail on which a cutting device 14 travels, is mounted on the tables 11, 12 and 13.
- Motors 16 and- 17 are respectively provided for the tables 11 and 13 so that the operation of these motors moves the longitudinal rail 15 to the left or right in the illustration on the transverse rails 8, 9 and 10.
- the table 12 is providedwith a shaft (which will be explained later) for rotating the longitudinal rail 15in the plane, so that when either the motor 16 or 17 is operated to move the table 11 or 13 in the transverse direction, the longitudinal rail 15 is rotated clockwise or counterclockwise in the plane with its intermediate point 18 as a supporting point.
- the position. of the longitudinal rail 15 and that of another longitudinal rail 35 which will be explained later, have been designed and set according to the center line of the cutting apparatus in the course of the designing of the latter and therefore it is necessary to adjust the positions of the longitudinal rails 15 and 35 to conform with a large plate'fed to the cutting apparatus with a certain deviation to the center line thereof.
- the rotational movement of the longitudinal rails is effected in accordance with the degree of deviation of the arrived large plate 1 with respect to the center line of the conveyance device, thereby adjusting the positions of the longitudinal rails to be placed substantially perpendicular to the seams in the large plate 1 (shown at 19, 20 and 21 in FIG. 8).
- the transition from the lateral to rotational movement of the longitudinal rail 15 is effected from the control panel (not shown).
- the longitudinal rail 35 is arranged on the other side (the left side in the illustration) of the conveyance device so that similarly with the longitudinal rail 15, a cutting device 34 can travel along the longitudinal rail 35.
- the longitudinal rail 35 is mounted on tables 31 and 33 which are adapted to move to the left and right on transverse rails 38 and 39, so that when the motors 36 and 37 are operated to move the tables 31 and 33 in the like manner as the longitudinal rail 15, the longitudinal rail 35 is rotated in either the clockwise direction or counterclockwise direction, depending upon the direction of rotation of the motors with the intermediate point 32 acting as its supporting and pivot point.
- the longitudinal rail 35 is not adapted to move entirely to the left or right in accordance with the width of the large plate 1.
- plate-position deviation detector 22 can also serve as a stopper and thus it is possible to eliminate the previously mentioned stopper.
- Detectors 25 and 26 are respectively provided for the longitudinal rails 15 and 35 at near the center thereof to detect the degrees of rail rotation.
- the rail rotation detectors 25 and 26 are respectively provided withdifferential transformers 27 and 28 which respectively convert the degrees of rotation of the longitudinal rails 15 and 35 into electrical potentials.
- the motors l6 and 36 or the motors 1'7 and 37 are operated in accordance with the differences between the potentials produced by the differential transformers 23 and 24 and those produced by the differential transformers 27 and 28, thereby rotating the longitudinal rails 15 and 35 clockwise or counterclockwise until the deviations of lines X and Y for cutting the large plate 1 from the lines in which the cutting devices 14 and 34 are made to travel, are reduced to zero thus making the lines parallel to one another.
- the motors l6 and 36 or 17 and 37 stop rotating when the potential differences become zero.
- FIG. 3 illustrates in detail a'section taken through the middle portion of the longitudinal rail 35.
- a rotary shaft 41 secured to the lower end of the longitudinal rail 35 and extending downwardly therefrom is fit in a frame 40 firmly set on the ground.
- the rotary shaft 41 is provided with a plurality of bearings 42, 43, 44 and45 which are mounted respectively at the peripheral and end portions thereof to facilitate the rotation of the shaft 41 in the frame 40.
- the middle portion of another longitudinal rail 15 is constructed substantially in the same manner as shown in FIG. 3 and therefore no detailed explanation thereof will-be made.
- FIGS. 6 and 7 show the lower structure of the longitudinal rail 15, particularly those portions of the longitudinal rail 15 which are connected to the transverse rails 8 and 10.
- the structures in these portions are identical and therefore the description will be limited to the structure of the connection between the transverse rail 8 and the longitudinal rail 15.
- numeral 65 designates a bed firmly set on the ground and the transverse rail 8 is securely mounted on the bed 65.
- the transverse rail 8 has a rack 66 securely mounted thereon and the rack 66 is in mesh with a pinion 67 of the motor 16 mounted on the table 11, so that the table 11 is moved to the left or right in FIG. 6 in response to the operation of the motor 16.
- Rollers 68, 69, 70, 71, 72 and 73 are provided so that the table 11 may be moved smoothly, and these rollers also hold therebetween the ends of the transverse rail 8 from the upper and lower sides as well on both sides thereof.
- Mounted on the table 11 is a support 74 secured to the lower end of the longitudinal rail 15.
- the support 74 is formed with a groove 75 having r a rectangular cross section as shown in FIG. 6 and a roller 76 mounted on the upper surface of the table 11 is placed in the groove 75, whereby the table 11 is moved in the direction of the arrow in FIG. 7 when the longitudinal rail 15 rotates.
- Numeral 77 designates bearings which serve to reduce the friction which occurs between the support 74 and the table 11 during the rotational movement of the longitudinal rail 15.
- the cutting devices 14 and 35 travel respectively along the longitudinal rails 15 and 35, so that the torches of these cutting devices remove, with mechanical accuracy and great efficiency, the desired amount from the longitudinal ends of the large plate 1 to produce parallel ends.
- the cutting devices 14 and 34 need not necessarily be operated in synchronism with each other.
- the cutting apparatus for large plates is designed such that the deviation with respect to the center line of the conveyance means of a large plate fed to the cutting apparatus is detected and the rails having the cutting devices mounted thereon are rotated in accordance with the detected deviation to adjust the positions of the rails to meet the detected deviation and thus to remove the desired amount from both ends of the large plate by the cutting devices to produce parallel ends.
- a cutting apparatus for cutting the ends of a large plate to produce parallel ends comprising:
- a rotatable longitudinal rail disposed on each side of said conveyance means, at least one of said longitudinal rails being movable in accordance with the width of said large plate so as to be positioned sub stantially perpendicular to seams in said large plate,
- a detector for detecting the degree of rotation of each of said longitudinal rails and having a differential transformer
- a deviation detector having a plurality of differential transformers and located near a stopper line, at which line said large plate is stopped in conveyance, to detect a deviation of position of said large plate.
- At least one of said longitudinal rails is mounted on a plurality of tables movable respectively along a plurality of transverse rails arranged substantially perpendicular to the lines on which said plate is cut, and a shaft mounted on the lower face of the central portion of said at least one longitudinal rail is rotatably received in one of said plurality of movable tables.
- At least one of said longitudinal rails has a shaft mounted on the lower face of the central portion thereof and rotatably received in a fixed frame, each end of said at least one rail is supported on a table movably mounted on a transverse rail, and each of said transverse rails includes a shaft rotatably received in a fixed frame.
- transverse rail with the shaft extending from the lower face thereof is formed with a V-shape groove on the upper surface thereof
- said table mounted on said transverse rail is provided with a V-shaped projection on the lower face thereof, whereby said table is movable through the intermediary of bearings on said transverse rail with said V-shaped groove acting as a guide therefor.
- each of said cutting means is mounted through the intermediary of an arm on a frame having mounted thereon a plurality of rollers holding therebetween the ends of the longitudinal rail from upper and lower sides thereof, a pinion meshed with a rack disposed on the upper surface of said longitudinal rail to extend along the longitudinal length thereof, and a motor for rotating said pinion.
- said conveyance means comprises a roller conveyor.
- An apparatus comprising means for stopping the conveyance of said large plate substantially at said stopper line.
- An apparatus comprising a motor coupling said cutting means to said respective longitudinal rails for causing said respective cutting means to travel along each of said longitudinal rails.
- transverse rails have their shafts integrally formed with said rails.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
- Details Of Cutting Devices (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP47013271A JPS5138471B2 (ja) | 1972-02-08 | 1972-02-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3815884A true US3815884A (en) | 1974-06-11 |
Family
ID=11828538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00318490A Expired - Lifetime US3815884A (en) | 1972-02-08 | 1972-12-26 | Cutting apparatus for large plates |
Country Status (8)
Country | Link |
---|---|
US (1) | US3815884A (ja) |
JP (1) | JPS5138471B2 (ja) |
DE (1) | DE2264099C3 (ja) |
ES (1) | ES410725A1 (ja) |
FR (1) | FR2171086B1 (ja) |
GB (1) | GB1367588A (ja) |
IT (1) | IT978893B (ja) |
SE (1) | SE382309B (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110271945A1 (en) * | 2002-11-01 | 2011-11-10 | Black & Decker Inc. | Tile saw |
CN104816384A (zh) * | 2015-04-24 | 2015-08-05 | 淮南北新建材有限公司 | 一种三控进锯板材运行控制系统 |
CN104816383A (zh) * | 2015-04-24 | 2015-08-05 | 宁波北新建材有限公司 | 一种切边机履带保护的方法及装置 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5646872U (ja) * | 1979-09-20 | 1981-04-25 | ||
CN107571322B (zh) * | 2017-10-30 | 2023-05-09 | 东莞市科立电子设备有限公司 | 一种全自动在线分板机 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2202767A (en) * | 1939-08-03 | 1940-05-28 | Cons Machine Tool Corp | Planer |
US3412768A (en) * | 1964-12-28 | 1968-11-26 | Torwegge Helmut | Device for machining the longitudinal edges of plate-shaped workpieces of different widths |
-
1972
- 1972-02-08 JP JP47013271A patent/JPS5138471B2/ja not_active Expired
- 1972-12-26 US US00318490A patent/US3815884A/en not_active Expired - Lifetime
- 1972-12-28 GB GB5994572A patent/GB1367588A/en not_active Expired
- 1972-12-29 FR FR7246969A patent/FR2171086B1/fr not_active Expired
- 1972-12-29 SE SE7217149A patent/SE382309B/xx unknown
- 1972-12-29 DE DE2264099A patent/DE2264099C3/de not_active Expired
-
1973
- 1973-01-17 ES ES410725A patent/ES410725A1/es not_active Expired
- 1973-02-07 IT IT20125/73A patent/IT978893B/it active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2202767A (en) * | 1939-08-03 | 1940-05-28 | Cons Machine Tool Corp | Planer |
US3412768A (en) * | 1964-12-28 | 1968-11-26 | Torwegge Helmut | Device for machining the longitudinal edges of plate-shaped workpieces of different widths |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110271945A1 (en) * | 2002-11-01 | 2011-11-10 | Black & Decker Inc. | Tile saw |
US9623588B2 (en) * | 2002-11-01 | 2017-04-18 | Black & Decker Inc. | Tile saw |
CN104816384A (zh) * | 2015-04-24 | 2015-08-05 | 淮南北新建材有限公司 | 一种三控进锯板材运行控制系统 |
CN104816383A (zh) * | 2015-04-24 | 2015-08-05 | 宁波北新建材有限公司 | 一种切边机履带保护的方法及装置 |
CN104816384B (zh) * | 2015-04-24 | 2016-09-14 | 淮南北新建材有限公司 | 一种三控进锯板材运行控制系统 |
Also Published As
Publication number | Publication date |
---|---|
SE382309B (sv) | 1976-01-26 |
GB1367588A (en) | 1974-09-18 |
IT978893B (it) | 1974-09-20 |
DE2264099B2 (de) | 1973-12-20 |
ES410725A1 (es) | 1976-01-01 |
FR2171086B1 (ja) | 1974-10-04 |
DE2264099A1 (de) | 1973-08-16 |
FR2171086A1 (ja) | 1973-09-21 |
JPS5138471B2 (ja) | 1976-10-21 |
DE2264099C3 (de) | 1974-07-18 |
JPS4883480A (ja) | 1973-11-07 |
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