JP6141803B2 - Wire rod cutting device - Google Patents

Description

  The present invention cuts various wire rods such as reinforcing bars, deformed rods, screw rods, metal wires, etc., in particular, winding start end portions and winding end portions (hereinafter referred to as “winding end portions”) of coil springs. The present invention relates to a wire cutting device suitable for the above.

  There is an electro-hydraulic rebar cutting device as a cutting device used for cutting a metal wire. This device cuts the metal wire between the two blades by moving the movable blade attached to the tip of the reciprocating slidable rod toward the fixed blade and sliding with the fixed blade. One or two wire rod cutting devices are known.

JP 2004-66429 A Japanese Utility Model Publication No. 6-66914

  As shown in FIG. 3, the conventional wire rod cutting apparatus A sets a wire rod G in a set space D between the fixed blade B and the movable blade C, and of the wire rod G, the outside (side) of the set space D. The protruding portion protruding to the end is supported by the support E of the wire rod cutting device A to prevent the displacement of the wire rod G. When the movable cutter C is moved to the fixed blade B side in this state, the wire rod G is cut. It is like that.

  The wire cutting device A is a device whose main purpose is to cut a reinforcing bar protruding outward from the concrete. However, since there has been no cutting device for cutting the winding end T of the coil spring S, the wire cutting device A may be used to cut the winding end T of the coil spring S. When cutting the winding end portion T with the wire rod cutting device A, the coil spring S is placed on the mounting portion F of the wire rod cutting device A, and the coil spring S is tilted toward the movable blade C as shown in FIG. The end T is set in the set space D, and the winding end T is supported by the support E so as not to move inadvertently. In this state, the movable cutter C is moved to the fixed cutter B side and the winding end is moved. T is cut.

  However, the coil spring S includes a right-handed one and a left-handed one. There is only one support E. For this reason, when the coil spring S is right-handed as shown in FIG. 5A, the winding end T can be supported by the support tool E, but when the coil spring S is left-handed as shown in FIG. When the coil spring S is placed on the placing part F of the wire rod cutting device A, the winding end part T protrudes on the opposite side of the support tool E. For this reason, it is difficult to set the winding end T in the set space D of the wire cutting device A, it cannot be supported by the support E, the coil spring S is easily displaced during cutting, and the desired portion of the winding end T can be determined. It was difficult to cut reliably.

  The problem to be solved by the present invention is to provide a wire cutting apparatus capable of reliably cutting not only a rod-shaped metal wire but also a winding end of a right-handed coil spring and a winding end of a left-handed spring.

[Wire cutting device]
The wire rod cutting device of the present invention includes a placing portion for placing a metal wire rod, a fixed blade, a movable blade, a set space provided between the fixed blade and the movable blade, and a drive mechanism for moving the movable blade forward and backward. A mechanism housing portion in which the drive mechanism is housed, a metal wire placed on the mounting portion is set in a set space, the movable blade is pushed out to the fixed blade side by the drive mechanism, and the metal wire is pressed against the fixed blade. In the wire rod cutting device capable of cutting with both cutters, support tools for supporting the metal wire set in the set space are provided on both outer sides of the movable cutter, and these support tools are arranged on the set space side from the mechanism storage portion side. One of the support members can support at least the winding end portion of the right-handed coil spring, and the other support member can be at least the winding end of the left-handed coil spring. It is obtained by allowing support. In addition, a winding edge part means the linear part which is not wound by coil shape among coil springs, and is not limited to the part near the end surface of a coil spring.

  The wire cutting device urges each support tool toward the fixed blade side, and when the metal wire is pushed into the set space from the upper opening of the set space and set, the metal wire is supported by the support tool and the fixed blade. It is also possible to sandwich and support them.

The wire rod cutting device of the present invention has the following effects.
(1) Since the support is provided on both outer sides of the movable cutter, both the right-handed coil spring and the left-handed coil spring can be reliably cut, and metal wires other than the coil spring can be cut.
(2) When the support is urged toward the fixed blade, the metal wire can be more reliably supported by the urging force.

The perspective view which shows an example of the wire cutting device of this invention. FIG. 1 shows an example of cutting a winding end portion of a coil spring by the wire rod cutting device shown in FIG. 1, wherein (a) is a plan view when cutting a winding end portion of a right-handed coil spring; ) Is a plan view when cutting the winding end of the left-handed coil spring. The perspective view which shows an example of the conventional wire rod cutting device. The side view in the case of cut | disconnecting the winding end part of a coil spring with the wire rod cutting device shown in FIG. FIG. 3 shows an example of cutting the winding end portion of the coil spring by the wire rod cutting device shown in FIG. 3, and (a) is a plan view when cutting the winding end portion of the right-handed coil spring; ) Is a plan view when cutting the winding end of the left-handed coil spring.

(Embodiment)
[Wire cutting device]
An example of the wire rod cutting device 1 of the present invention will be described with reference to the drawings. The wire rod cutting device 1 of the present invention can be used for cutting various metal wire rods such as reinforcing bars, deformed rods, screw rods, and pipe members. Here, the metal wire rod is a coil spring 6 (FIGS. 2A and 2B). ) Will be described as an example.

  As an example, the wire rod cutting device 1 shown in FIG. 1 includes a fixed blade 3 and a movable blade 4 on the distal end side of a main body 2, and a coil spring 6 (in a set space 5 between the fixed blade 3 and the movable blade 4. 2 (a) and 2 (b)) is set, and the movable blade 4 is pushed out toward the fixed blade 3 so as to be in sliding contact with the fixed blade 3, so that the winding end 6a of the coil spring 6 is moved. To cut.

  In the wire rod cutting device 1 of the present invention, support tools 8 are provided on both outer sides of the movable cutter 4 so as to support the winding end portion 6a of the coil spring 6 to be cut. Both supports 8 are provided so as to protrude from the mechanism housing portion 10 side of the main body 2 to the set space 5 side. The support 8 is urged toward the fixed blade 3 by a spring 11, and when the winding end 6 a of the coil spring 6 is pushed into the set space 5 from the upper opening 5 a of the set space 5, the support 8, the winding end 6a of the coil spring 6 is pressed and supported. The mounting portion 9 on which the coil spring 6 is mounted can be provided only on the right side as shown in FIGS. 2A and 2B, but the mounting portion 9 having the same structure as the mounting portion 9 provided on the right side is also provided on the left side. As shown in FIG. 2B, the coil spring 6 may be placed when the winding end portion 6a of the left-handed coil spring 6 is cut as shown in FIG.

  As the wire rod cutting device 1, various cutting devices including a fixed blade 3 and a movable blade 4 can be used. For example, an electric hydraulic rebar cutting machine manufactured by Ogura Corporation can be used. The movable blade 4 of this cutting machine is configured to move forward or backward (reciprocate) by a piston mechanism built in the mechanism housing portion 10 of the main body 2 or another type of driving mechanism (not shown). The movable blade 4 moves forward or backward by operating a switch SW provided on the main body 2. A power cord 7 is pulled out from the main body 2 so that a commercial power source can be taken in.

  The fixed cutter 3 and the movable cutter 4 provided in the wire cutting apparatus 1 are arranged with their axes shifted to the left and right as shown in FIGS. 2A and 2B, and the movable cutter 4 is moved to the fixed cutter 3 side. When sliding forward, the adjacent side surfaces (hereinafter referred to as “proximal side surfaces 3a, 4a”) of both blades are in sliding contact, and the winding end portion 6a set in the set space 5 is cut by this sliding contact. is there.

(Example of use)
The usage example of the wire cutting device 1 of this invention is demonstrated with reference to drawings. This use example is an example in the case of cutting the winding end portion 6a of the right-handed coil spring 6 using the wire rod cutting device 1 of the present invention.
(1) As shown in FIG. 2 (a), a coil spring 6 is placed on the placing portion 9 of the wire rod cutting device 1, and the coil spring 6 is tilted toward the movable blade 4 (see FIG. 4). Set in set space 5. At this time, the winding end portion 6a set in the set space 5 is supported by the right support 8 in FIG.
(2) In the state (1), the switch SW is operated to move the movable blade 4 to the fixed blade 3 side, and the winding end 6a set in the set space 5 is cut.

  When cutting the left-handed coil spring 6, the winding end portion 6a is set in the set space 5 in the same procedure as in (1) (FIG. 2B). At this time, the winding end 6a set in the set space 5 is supported by the left support 8 in FIG. 2 (b). By operating the switch SW in this state to move the movable blade 4 to the fixed blade 3 side, the winding end portion 6a set in the set space 5 can be cut.

  The wire rod cutting device 1 of the present invention can be used for cutting various metal wire rods such as reinforcing bars, deformed rods, screw rods, pipe members in addition to the winding end portion 6a of the coil spring 6.

DESCRIPTION OF SYMBOLS 1 Wire rod cutting device 2 Main body 3 Fixed knife 3a Proximal side face (of fixed knife) 4 Movable knife 4a Proximity side face (of movable knife) 5 Set space 5a (Set space) opening 6 Coil spring 6a Winding end 7 Power cord 8 Supporting tool 9 Mounting part 10 Mechanism housing part 11 Spring A Wire rod cutting device B Fixed blade C Moving blade D Set space E Supporting tool F Mounting part G Wire S S Coil spring T Winding end SW switch

Claims (2)

Contains a loading section for placing a metal wire, a fixed blade, a movable blade, a set space provided between the fixed blade and the movable blade, a drive mechanism for moving the movable blade forward and backward, and a drive mechanism. It is equipped with a mechanism storage part, and the metal wire placed on the placing part can be set in the set space, the movable blade can be pushed out to the fixed blade side by the drive mechanism, and the metal wire can be pressed against the fixed blade and cut by the two blades. In the wire rod cutting device,
Supporters that support the metal wire set in the set space are provided on both outer sides of the movable blade,
The support is provided so as to protrude from the mechanism housing part toward the set space, and either one of the supports can support at least the winding end of the right-handed coil spring, and the other support can be at least left-handed. Can support the winding end of the spring,
A wire rod cutting device characterized by that. The wire rod cutting device according to claim 1,
When each support tool is urged toward the fixed blade and the metal wire is pushed into the set space from the upper opening of the set space and set, the metal wire is sandwiched and supported between the support and the fixed blade. To be
A wire rod cutting device characterized by that.

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