JP5793383B2 - Cutting machine - Google Patents

Description

  The present invention relates to a cutting machine, and more specifically, without using a gas burner for protrusions such as a suspension 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 self-propelled cutting machine capable of cutting.

  Conventionally, for example, when cutting and removing a hanging piece or the like of a steel floor slab, the current situation is that the gas piece is cut using a gas burner at a position separated from the hanging piece or the like by a predetermined distance (Patent Document 1). reference).

  On the other hand, the thing of the following structures is known as a cutting machine which cut | disconnects protrusions, such as this kind of hanging piece. This cutting machine includes a main body frame formed in a portal shape, a cutting band saw provided in the main body frame, a mounting frame in which the main body frame is movable, and a movement for moving the main body frame along the mounting frame. It comprises an arm and opening position adjusting means that is provided at the lower part of the attachment frame via attachment legs and can be detachably attached to a steel column or the like (see Patent Document 2).

  In the cutting machine having such a configuration, after adjusting the height of the band saw, the support fixing part of the opening position adjusting means is sandwiched between fixing parts such as a steel column and fixed with fixing screws to the projection to be cut. Then, the band saw is rotated at a high speed, and then the moving arm is held by hand, the main body frame is pushed out along the mounting frame in the direction of the protrusion, and the protrusion is cut from the base with a cutting blade.

JP-A-6-185114 Utility Model Registration No. 3118636

  When cutting a suspended piece using a conventional gas burner, not only workability is bad, but also the steel floor slab etc. may be damaged by heat, spark dust scattering and smoke will be generated Has a problem.

  Furthermore, since the gas burner cannot cut protrusions such as hanging pieces from the root, cutting marks remain on the surface of the steel floor slab, etc., and there is also a problem that the finishing work requires labor and time. .

  Further, when using the conventional cutting machine, it has a drawback that workability is poor because the movable arm is gripped and manually operated. Furthermore, since the cutting opening provided in the main body frame is formed vertically and narrowly, only a narrow protrusion projecting vertically can be cut. That is, there is a problem that the inclined protrusions cannot be cut.

  Therefore, in the cutting work of protrusions such as hanging pieces in the conventional example, it is possible to eliminate problems such as damage due to flame and scattering of spark dust and to save labor, and cutting work using a cutting machine There is a problem that must be solved to improve the workability and to be able to cut the protrusion in an inclined state.

The gist of the present invention for solving the problems of the conventional example is that a protrusion such as a suspension piece, an erection piece, a guide piece, or a joint plate is provided on a steel part (12) such as a steel deck or steel frame. A cutting machine (11) for cutting, four attachment parts (13) that are detachably attached to the steel part (12) , and rail guide struts (14) erected on the attachment part (13) , and the rail guide column (14) at least a pair of rails for moving over and provided each other (15) is formed in a U-shape so as to surround the inner portion and the upper and lower portions of the rails for moving (15), moving those wherein A guide plate (16) movable along the rail (15) , and an attachment having a cutting opening (25) connected to the guide plate (16) and passing through the protrusion at the center. and the substrate (17), the mounting base A driving motor provided in (17) (18), wherein a driving roller provided on the mounting substrate (17) (19) to drive in conjunction with the driving of the drive motor (18), the drive roller (19) relative to the pair of driven rollers provided on the mounting substrate (17) (20), a cutter (21) that rotates out the driven roller (20) and said drive roller (19), said mounting substrate (17 ) Bei give a so provided traction means and (22) to traction in parallel along the movement rails (15), said mounting portion (13), the mounting plate (13b) is continuously provided to the upper It is attached to the rail guide column (14) with a bolt (13c) through the mounting plate (13b), and a longitudinally long slot (13d) through which the bolt (13c) is inserted into the mounting plate (13b). ) Is formed and the long hole ( 3d) is vertically movable and rotated with respect to the bolt (13c) so that the mounting height and mounting angle of the mounting portion (13) can be adjusted. The traction means (22) An L-shaped mounting arm (26) is provided in the middle of the rail guide column (14), and one end (27) of the traction means (22) is mounted on the tip of the mounting arm (26). A winding device (28) for rotatably winding the pulling means (22) is provided on the mounting substrate (17) .

The cutting opening (25) has an edge (25a) formed vertically;
The cutting opening (25) is formed to expand along the edge (25b) going upward;
The traction means (22) is a belt-like traction spring (22a) or a spring-type spring (29) ;
The attachment portion (13) is an electromagnet that is detachably attached to the steel portion (12) , and is replaceable;
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 are solved. Further, since the mounting substrate is provided with a pulling means for pulling the mounting substrate in parallel along the rail for movement, the mounting substrate including the cutter is self-propelled and the workability is improved .
In particular, the mounting portion is provided with a mounting plate connected to the upper portion, and is attached to the rail guide column with a bolt through the mounting plate, and the mounting plate is formed with a vertically long slot through which the bolt is inserted. The mounting angle of the mounting portion can be adjusted by adjusting the mounting height and mounting angle of the mounting portion by moving the elongated hole up and down and rotating with respect to the bolt. Can be attached not only to a planar portion but also to a curved portion such as a steel pipe.
The traction means is provided with an L-shaped attachment arm in the middle of the rail guide column, one end of the traction means is attached to the tip of the attachment arm, and the traction means is rotated on the attachment substrate. With the configuration in which a winding device for winding freely is provided, the mounting board is pulled along the moving rail so that it can be self-propelled. Various excellent effects of being able to cut the projections provided in a flat manner are exhibited.

  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.

  Since the pulling member is a winding belt spring or a spring spring, the mounting substrate including the cutter can be self-propelled and the workability is improved.

  The attachment portion is an electromagnet that is detachable from the steel portion, and can be exchanged, so that the attachment portion can be reliably adsorbed to the steel portion. Moreover, when the attraction force of the electromagnet is weak due to the coating thickness or the like, various excellent effects can be obtained in that the attachment portion can be replaced with a holding type and can be held between the steel frames.

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 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. It is a left view of the cutting machine 11 which concerns on this invention. It is a right view of the cutting machine 11 which concerns on this invention. It is a left view of the principal part which shows the clamping type attaching part. It is a front view of the principal part. 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 front view of the cutting machine 11 which shows the other Example of the traction means 22. FIG.

  Next, embodiments of the present invention will be described with reference to the drawings. First, in FIG. 1 to FIG. 6, reference numeral 11 denotes a cutting machine. The cutting machine 11 includes four attachment parts 13 that are detachably attached to the steel part 12 and rail guides that are erected on each attachment part 13. The support rail 14, the moving rail 15 provided across the rail guide support posts 14, the guide plate 16 movable along the moving rail 15, the mounting substrate 17 connected to the guide plate 16, and the mounting substrate 17 A drive motor 18 provided on the mounting substrate 17, and a pair of driven rollers 20 provided on the mounting substrate 17 opposite to the driving roller 19. The cutter 21 is rotated by the driven roller 20 and the driving roller 19, and the pulling means 22 is provided to pull the mounting substrate 17 in parallel along the moving rail 15. It is made.

  The steel part 12 is a steel slab or steel frame in a steel structure or a reinforced concrete structure, and the cutting machine 11 is a suspension piece, an erection piece, a guide piece or a joint projecting from the steel part 12. Cut the projection 23 such as a plate.

  The attachment portion 13 is specifically an electromagnet type, and can be firmly adsorbed to or removed from the steel portion 12 by an ON / OFF operation of the electromagnet switch 13a.

  Further, the mounting portion 13 is provided with a mounting plate 13b connected to the upper portion thereof, and is attached to the rail guide column 14 with a bolt 13c via the mounting plate 13b (see FIGS. 1, 2, 5, and 6). .

  The mounting plate 13b is formed with a vertically long slot 13d through which the bolt 13c is inserted (see FIGS. 5 and 6). The mounting plate 13b is moved vertically and rotated with respect to the bolt 13c so that the mounting portion The mounting height and mounting angle of 13 can be adjusted. Thus, since the attachment angle etc. of the attaching part 13 can be adjusted, the attaching part 13 can be attached not only to a planar part but also to a curved part such as a steel pipe.

  Moreover, the attaching part 13 can be replaced | exchanged by removing the volt | bolt 13c, for example, can be replaced | exchanged for the thing of clamping type as shown to FIG. 7-A and FIG. 7-B. The clamping attachment 13 is a pair of U-shaped members 13e formed in a U-shape, and the U-shaped member 13e can sandwich the flange portion 24a of the H-shaped steel 24 from both sides. Yes. Then, a bolt 13g can be screwed from the lower end portion 13f of the U-shaped member 13e to be detachably attached to the flange portion 24a.

  The U-shaped member 13e is attached to the attachment plate 13i with two bolts 13h, and this attachment plate 13i is attached to the rail guide column 14 with the bolt 13j (see FIGS. 7A and 7B).

  The mounting plate 13i is a plate-like member, and has a horizontally long elongated hole 13k through which the bolt 13h is inserted (see FIG. 7A). The bolt 13h is moved laterally with respect to the elongated hole 13k. By doing so, the interval between the U-shaped members 13e can be adjusted. Therefore, the U-shaped member 13e can be attached to correspond to the flange portions 24a having various widths.

  The sandwiching attachment portion 13 having such a structure is used by replacing the attachment portion 13 from an electromagnet type to a sandwiching type when the electromagnetic attachment portion 13 has a weak attracting force due to magnetic force due to the coating thickness or the like. That's fine.

  The rail guide column 14 is a plate-shaped prismatic member, and is attached to the upper portion of each attachment portion 13 with a bolt 13c (13j) as described above.

  As shown in FIGS. 1 and 3, a pair of moving rails 15 are provided over the upper portions of the rail guide columns 14. Moreover, the rail 15 for a movement is provided in the back side of the cutting machine 11 shown in FIG. That is, as shown in FIG. 1, 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 shown in FIG.

  In addition, the code | symbol 32 shown in FIG.5 and FIG.6 shows the side part support | pillar for maintaining the space | interval of the width direction of the rail guide support | pillars 14 between.

  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 the upper and lower sides of the moving rail 15, and the guide plate 16 includes three moving rails. 15 and can be moved in a sliding state along the rail for movement 15.

  The mounting substrate 17 is formed in a plate shape having a predetermined size, and the mounting substrate 17 is connected to the guide plate 16 as shown in FIGS. 1 to 3 and moves along with the movement of the guide plate 16. It is a mechanism to do. In addition, a cutting opening 25 for passing through the protrusion 23 is formed at the center of the mounting substrate 17.

  As shown in FIGS. 5 and 6, the cutting opening 25 has an edge 25 a formed vertically. Therefore, the projection 23 projecting vertically along the edge 25a can be reliably cut.

  Next, another embodiment of the cutting opening 25 will be shown. As shown in FIG. 8, the cutting opening 25d is formed to expand so that the edge 25b goes to the upper portion 25c. In other words, the cutting opening 25d has an inverted triangular shape, and the upper portion 25c expands. It is formed into a protruding shape. In this case, even a protrusion in an inclined state 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 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.

  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 includes 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.

  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).

  Specifically, the pulling means 22 is a winding-type belt-shaped pulling spring 22a, and is provided for pulling the mounting substrate 17 in parallel with the moving rail 15 in the direction of arrow A in FIG. As shown in FIGS. 1 to 4, an L-shaped attachment arm 26 is provided in the middle of the rail guide column 14, and one end portion 27 of the belt-like traction spring 22 a is attached to the distal end portion of the attachment arm 26. It is done. The mounting substrate 17 is provided with a winding device 28 for winding the belt-like traction spring 22a in a rotatable manner.

  According to the pulling means 22 having such a configuration, the mounting board 17 is pulled along the rails 15 for movement, so that the mounting board 17 can be self-propelled, and the cutter 21 protrudes from the steel part 12 while the mounting board 17 is self-propelled. The protrusion 23 to be cut can be cut flat.

  Next, another embodiment of the traction means 22 will be shown. As shown in FIG. 9, the pulling means 22 is a spring-type spring 29, and one end portion 30 of the spring-type spring 29 is attached to the distal end portion of the attachment arm 26, and the other end portion 31 is connected to the attachment substrate 17. Is done. Similar to the belt-shaped traction spring 22 a described above, the spring spring 29 pulls the mounting substrate 17 in parallel with the moving rail 15 in the direction of arrow A in FIG. A projection 23 such as a hanging piece to be cut is cut flat.

  The cutting machine 11 configured as described above sets and attaches the attachment portion 13 to the steel portion 12 relative to the projection 23 to be cut, and adjusts the attachment height and attachment angle of the attachment portion 13. . Next, by rotating the cutter 21 at a high speed and attaching one end portion 27 of the belt-like traction spring 22a to the attachment arm 26 to generate a traction force, the attachment substrate 17 is self-propelled along the moving rail 15, and the attachment The cutting opening 25 of the substrate 17 passes through the protrusion 23, and the cutter 21 cuts the protrusion 23 into a flat shape.

DESCRIPTION OF SYMBOLS 11 Cutting machine 12 Steel part 13 Mounting part 13a Electromagnetic switch 13b Mounting plate 13c Bolt 13d Long hole 13e U-shaped member 13f Lower end part 13g, 13h Bolt 13i Mounting plate 13j Bolt 13k Long hole 14 Rail guide column 15 Rail for movement 16 Guide Plate 17 Mounting board 18 Drive motor 19 Drive roller 20 Driven roller 21 Cutter 22 Pulling means 22a Strip-like pulling spring 23 Projection 24 H-section steel 24a Flange 25 Cutting opening 25a, 25b Edge 25c Upper 25d Cutting opening 26 Mounting arm 27 One end portion 28 Winding device 29 Spring type spring 30 One end portion 31 Other end portion 32 Side column

Claims (5)

A cutting machine (11) for cutting protrusions such as a suspension piece, an erection piece, a guide piece or a joint plate protruding from a steel part (12) such as a steel deck or steel frame,
Four attachment parts (13) that are detachably attached to the steel part (12) ;
A rail guide post (14) standing on the mounting portion (13) ;
At least a pair of moving rails (15) provided across the rail guide columns (14) ;
Is formed in a U-shape so as to surround the inner portion and the upper and lower portions of the movable rail (15), movable guide plate along those the mobile rail (15) and (16),
A mounting substrate (17) provided continuously with the guide plate (16 ) and having a cutting opening (25) for passing the projection at the center;
A drive motor (18) provided on the mounting substrate (17) ;
A drive roller (19) that is driven in conjunction with the drive motor (18) and provided on the mounting substrate (17) ;
A pair of driven rollers (20) provided on the mounting substrate (17) in opposition to the driving roller (19) ;
A cutter (21) rotated by the driven roller (20) and the drive roller (19) ;
It said mounting substrate (17) traction means provided in order to tow parallel to the along the movement rails (15) and (22) and Bei give a,
The mounting portion (13) is provided with a mounting plate (13b) connected to the upper portion thereof, and is attached to the rail guide column (14) with bolts (13c) via the mounting plate (13b). The plate (13b) is formed with a vertically long slot (13d) through which the bolt (13c) is inserted. By moving the slot (13d) up and down with respect to the bolt (13c) and rotating, The mounting height and the mounting angle of the mounting portion (13) can be adjusted.
The pulling means (22) is provided with an L-shaped mounting arm (26) in the middle of the rail guide column (14), and one end of the pulling means (22) at the tip of the mounting arm (26). (27) is attached, and a winding device (28) for rotatably winding the traction means (22) around the attachment substrate (17) is provided. (11) . The cutting machine (11) according to claim 1, wherein the cutting opening (25) has an edge (25a) formed vertically. The cutting machine (11) according to claim 1, wherein the cutting opening (25) is formed to expand along the edge (25b) going upward. The cutting machine (11) according to claim 1, wherein the traction means (22) is a belt-like traction spring (22a) or a spring-type spring (29 ) . The cutting machine (11) according to claim 1, wherein the attachment portion (13) is an electromagnet type that is detachable from the steel portion (12) and is replaceable.

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