JP2014058024A - Cutting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cutting machine capable of sucking a suction pad to a steel part even when a conventional electromagnet cannot be sucked.SOLUTION: There is provided a cutting machine 11 which cuts a body 23 to be cut, such as a suspension piece, an erection piece, a guide piece, or a joint plate, the cutting machine including suction pads 13 at four places which are sucked and fitted to a steel part 12, supporters 22 for depression which are fitted to upper parts of the suction pads 13, four columns 14 stood on the respective supporters 22, rails 15 for movement which are provided extending between the columns 14, a fitting substrate 17 which can move along the rails 15 for movement and has a cutting opening part 25 for passing the body 23 to be cut, a driving motor 18 which is provided for the fitting substrate 17, a driving roller 19 which achieves driving interlocking with the driving of the driving motor 18 and is provided on the fitting substrate 17, a pair of driven rollers 20 which are provided on the fitting substrate 17 opposite the driving roller 19, and a belt-like cutter 21 which rotates by the driven roller 20 and driving roller 19.

Description

  The present invention relates to a cutting machine. More specifically, a gas burner is used for an object to be cut such as a hanging piece, an erection piece, a guide piece or a joint plate protruding from a steel deck or steel frame. The present invention relates to a cutting machine that can cut without cutting.

  Conventionally, when cutting and removing protrusions such as angle pieces of steel frames, the current situation is that they are cut using a gas burner at a position away from the protrusions by a predetermined distance (Patent Document). 1).

  On the other hand, as a cutting machine for cutting this type of protrusion, one having the following configuration is known. This cutting machine includes a main body frame formed in a gate shape, a cutting band saw provided in the main body frame, a traveling rail in which the main body frame is movably provided, and an electromagnet provided in a lower portion of the traveling rail via a rail guide. (See Patent Document 2).

  The cutting machine configured as described above adsorbs an electromagnet to the steel near the protrusion to be cut, adjusts the height of the band saw, rotates the band saw at high speed, and then travels the main body frame manually or by its own weight. Extruding along the rail in the direction of the protrusion, the protrusion is cut from the root with a band saw.

JP-A-6-185114 JP 2006-21265 A

  When cutting projections using the conventional gas burner, not only is workability worse, but it also damages steel frames etc. with fire heat, and spark dust and smoke are generated. Have

  In addition, since the gas burner cannot cut the protrusion from the root, cutting marks remain on the surface of the steel frame or the like, and there is a problem that the finishing work requires labor and time.

  And since the cutting machine of a prior art makes an electromagnet adsorb | suck to a steel part, when the adsorption | suction force of an electromagnet is weak because of the coating thickness etc. of the steel part, the problem that an electromagnet cannot be reliably attached to a steel part Has a point.

  Therefore, in the cutting work of the projections in the conventional example, it is possible to eliminate problems such as damage due to flame and scattering of spark dust so that work is not required, and even if the adsorption force of the electromagnet is weak, the steel part There is a problem that must be solved in the reliable mounting.

  The gist of the present invention for solving the problems of the conventional example is to cut a workpiece such as a suspension piece, an erection piece, a guide piece or a joint plate protruding from a steel part such as a steel deck or steel frame. A cutting machine, which is attached to the steel part by being adsorbed to the four parts, a supporting tool for pressing attached to the upper part of the adsorbing board, four struts erected on each supporting tool, A moving rail provided across the columns, a mounting board that is movable along the moving rail and has a cutting opening for passing the workpiece, and a drive motor provided on the mounting board; A drive roller that is driven in conjunction with the drive motor and provided on the mounting substrate, a pair of driven rollers provided on the mounting substrate opposite to the drive roller, the driven roller, and the drive A belt-shaped cutter rotating at a roller is to comprise a.

Further, the support is composed of a horizontal portion having a length equal to or greater than the diameter of the suction plate, a curved portion connected to both ends of the horizontal portion, and a connecting portion connected to the curved portions. The horizontal portion is screwed to the lower end of the column, and the connecting portion is connected to the upper portion of the suction plate over a required length;
The required length that the connecting part connects to the upper part of the suction cup is not less than one third of the length of the diameter of the suction cup;
The cutting opening is formed with vertical edges;
The cutting opening is formed to expand along the edge going upward;
Is included.

According to the cutting machine according to the present invention, since a gas burner is not used, problems such as flame damage and spark dust scattering as in the conventional example are solved.
Moreover, even when the attracting force of the electromagnet is weak due to the coating thickness of the steel part or the like, there is an excellent effect that the suction plate can be securely attached to the steel part.

The support is composed of a horizontal portion having a length equal to or greater than the diameter of the suction cup, a curved portion connected to both ends of the horizontal portion, and a connecting portion connected to the curved portions, and the horizontal portion is a support column. It is screwed to the lower end of the suction plate, and the connecting part is connected to the upper part of the suction plate over the required length, so that the horizontal part is at least as long as the diameter of the suction plate. When the steel part is attracted, the support can be stably pressed downward with a uniform force, and the suction disk can be reliably adsorbed.
In addition, since the connection part of the support is connected to the upper part of the suction plate over the required length, when the suction board is sucked into the steel part, the upper part of the suction board is simultaneously lowered over the required length. Since it can be pressed, the horizontal part is combined with the length equal to or greater than the diameter of the suction disk, and it has an excellent effect that the suction disk can be reliably sucked.

  The cutting opening portion has an excellent effect that the protrusion projecting vertically can be reliably cut by forming the edge portion vertically.

  The cutting opening has an excellent effect that it can be cut even if it is a slanted projection by forming the edge to expand along the upper part.

It is a perspective view of the cutting machine 11 which concerns on this invention. It is a perspective view of the cutting machine 11 which concerns on this invention. It is a front view of the cutting machine 11 which concerns on this invention. It is a rear view of the cutting machine 11 which concerns on this invention. It is a front view which expands and shows the suction disk 13 and the support tool 22. FIG. It is a right view of the cutting machine 11 which concerns on this invention. It is a left view of the cutting machine 11 which concerns on this invention. It is a left view of the cutting machine 11 which shows the other Example of the cutting opening part 25. FIG. It is a top view of the cutting machine 11 which concerns on this invention. It is a bottom view of the cutting machine 11 which concerns on this invention.

  Next, embodiments of the present invention will be described with reference to the drawings. First, in FIG. 1 to FIG. 7, reference numeral 11 denotes a cutting machine. The cutting machine 11 has four suction plates 13 attached to the steel portion 12 and attached to the upper portion of the suction plate 13. A tool 22, four struts 14 standing on each support tool 22, three moving rails 15 provided across the struts 14, and a mounting substrate 17 movable along the moving rails 15. A drive motor 18 provided on the mounting substrate 17, a drive roller 19 driven in conjunction with the drive of the drive motor 18, a pair of driven rollers 20 provided on the mounting substrate 17 opposite to the drive roller 19, and a driven roller 20 and a cutter 21 rotated by a drive roller 19.

  The steel part 12 is a steel slab or a steel frame material in a steel structure or a reinforced concrete structure. The cutting machine 11 cuts an object to be cut 23 such as a suspension piece, an erection piece, a guide piece, or a joint plate protruding from the steel part 12.

  The suction disk 13 is integrally molded in a circular dome shape with rubber or synthetic resin, and an adsorption surface is formed on the lower surface side thereof.

  As shown in FIG. 5, the support tool 22 is connected to the horizontal portion 22a having a length equal to or longer than the diameter L1 of the suction plate 13, the curved portion 22b connected to both ends of the horizontal portion 22a, and the curved portions 22b. The connecting portion 22c is formed in a substantially D shape.

  As described above, since the horizontal portion 22a is equal to or longer than the diameter L1 of the suction plate 13, the support 22 can be stably pressed downward with a uniform force when the suction plate 13 is sucked to the steel portion 12. Thus, the suction disk 13 can be reliably adsorbed.

  The horizontal portion 22 a is fixed to the lower end portion of the column 14 with a screw 24. Further, as shown in FIG. 5, the connecting portion 22c is connected to the upper portion 13a of the suction disk 13 over the required length L2. Specifically, the required length L2 is desirably one-third or more of the length of the diameter L1 of the suction disk 13. In this case, when the suction disk 13 is attracted to the steel part 12, the upper part of the suction disk 13 can be pressed downward simultaneously over the required length L2, so that the suction disk 13 can be further reliably attracted.

  The support column 14 is a flat prism member, and the horizontal portion 22a of each support tool 22 is fixed to the lower end portion of the support column 14 with a screw 24 as described above.

  One moving rail 15 is provided on the front side of the cutting machine 11 shown in FIGS. In addition, two moving rails 15 are provided on the back side of the cutting machine 11 shown in FIG. That is, as shown in FIGS. 1 to 4, a total of three moving rails 15 are provided, one on the front side of the cutting machine 11 and two on the back side.

  In addition, the code | symbol 26 shown in FIG.1 and FIG.2 shows the side part support | pillar for maintaining the space | interval of the width direction of the support | pillars 14 between.

  A guide plate 16 that is movable along the moving rail 15 is attached to the moving rail 15.

  As shown in FIGS. 1 to 4, the guide plate 16 is formed in a substantially U shape so as to surround the inner side and upper and lower sides of the moving rail 15, and the guide plate 16 extends along the moving rail 15. It can be moved while sliding.

  The mounting board 17 is formed in a predetermined size, and the mounting board 17 is connected to the guide plate 16 as shown in FIGS. 1 to 4 and moves with the movement of the guide plate 16. It has become. A cutting opening 25 for passing the workpiece 23 is formed at the center of the mounting substrate 17.

  As shown in FIGS. 6 and 7, the cutting opening 25 has an edge 25a formed vertically. Therefore, it is possible to reliably cut the workpiece 23 that projects vertically along the edge 25a.

  Next, another embodiment of the cutting opening 25 will be shown. As shown in FIG. 8, the cutting opening 25b is formed so as to expand along the edge 25c toward the upper part 25d. In other words, the cutting opening 25b has an inverted triangular shape and the upper part 25d expands. It is formed in a different shape. In this case, even an inclined workpiece can be cut.

  The drive motor 18 is provided on the mounting substrate 17 and is driven and stopped by an ON / OFF switch (not shown).

  The drive roller 19 is configured to be driven in conjunction with the drive of the drive motor 18 and is provided on the mounting substrate 17. The drive roller 19 is made of a pulley having a larger diameter than the driven roller 20, and a rotary cutter 21 is wound around the pulley to be transmitted to the driven roller 20 (see FIGS. 6 and 7).

  A pair of driven rollers 20 are provided on the mounting substrate 17 so as to face the drive roller 19. The driven roller 20 is composed of a pair of left and right pulleys attached to two corners on the lower end side of the mounting substrate 17, and is disposed so that the cutter 21 is orthogonal to the protrusion 23 (FIGS. 6 and 7). reference).

  The cutter 21 is a wire-type rotary cutter, for example, a wire saw, and is rotated at high speed via a drive roller 19 and a pair of driven rollers 20. The cutter 21 is usually covered with a belt cover (not shown).

  The cutting machine 11 configured as described above causes the suction plate 13 to be adsorbed to the steel part 12 relative to the workpiece 23 to be cut, and then the cutter 21 is rotated at a high speed so that the mounting substrate 17 is manually moved. Therefore, the workpiece 23 is moved while being pressed in the direction of the workpiece 23 to cut the workpiece 23.

  Further, when the suction plate 13 is attracted to the steel part 12, the horizontal portion 22a is equal to or longer than the diameter L1 of the suction plate 13, and the connection portion 22c is one third of the diameter L1 of the suction plate 13. Since it is connected to the upper part of the suction disk 13 over the above length, the support tool 22 can be stably pressed downward with a uniform force, so that the suction disk 13 can be reliably suctioned.

DESCRIPTION OF SYMBOLS 11 Cutting machine 12 Steel part 13 Suction board 13a Upper part 14 Support | pillar 15 Moving rail 16 Guide plate 17 Mounting board 18 Drive motor 19 Drive roller 20 Driven roller 21 Cutter 22 Support tool 22a Horizontal part 22b Curved part 22c Connection part 23 To-be-cut object 24 Screw 25 Cutting opening 25a Edge 25b Cutting opening 25c Edge 25d Upper part 26 Side support

Claims (5)

A cutting machine for cutting an object to be cut such as a suspension piece, an erection piece, a guide piece, or a joint plate protruding from a steel part such as a steel deck or steel frame,
Four suction discs attached to the steel part by adsorption,
A pressing support attached to the upper portion of the suction plate;
4 columns to stand on each support,
A moving rail provided across the columns;
A mounting substrate that is movable along the rail for movement and has a cutting opening for passing through the workpiece;
A drive motor provided on the mounting substrate;
A drive roller that is driven in conjunction with the drive of the drive motor and provided on the mounting substrate;
A pair of driven rollers provided on the mounting substrate relative to the driving roller;
A cutting machine comprising: a belt-like cutter rotated by the driven roller and the driving roller. The support is composed of a horizontal portion having a length equal to or greater than the diameter of the suction plate, a curved portion connected to both ends of the horizontal portion, and a connecting portion connected to the curved portions.
The horizontal portion is screwed to the lower end of the column,
The cutting machine according to claim 1, wherein the connecting portion is connected to an upper portion of the suction plate over a required length. 3. The cutting machine according to claim 2, wherein the required length for connecting the connection portion to the upper portion of the suction plate is not less than one-third of the diameter of the suction plate. 4. . The cutting machine according to claim 1, wherein an edge of the cutting opening is formed vertically. 2. The cutting machine according to claim 1, wherein the cutting opening is formed to expand along an edge of the cutting opening.

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