KR20190113994A - Rebar cutter and rebar cutting device - Google Patents

Abstract

Provided is a reinforcing bar cutter that suppresses deformation of the cutting plane of the reinforcing bar when cutting the bar. The fixed blade, the movable blade which can operate close to the fixed blade, and the rebar cutter main body 3A which arrange | position the fixed blade and movable blade in the longitudinal direction of the rebar 20 arrange | positioned between such blades are provided. In the rebar cutting space in which the fixed blade and the movable blade are arranged, the stage which receives the reinforcing bar 20 before cutting from the lower side of the movable blade together with the fixed blade, and the rebar cutting machine main body 3A are attached to the stage to reinforce the cutting space. It has the stage movement apparatus 25 which moves up and down inside. The stage moving device 25 has a urging means for urging the stage upwards, and allows the stage to be lowered together with the cut rebar along with the lowering of the movable blade.

Description

Rebar cutter and rebar cutting device

The present invention provides a rebar having a fixed blade, a movable blade close to the fixed blade, and a rebar cutting machine main body having the fixed blade and the movable blade displaced in the longitudinal direction of the rebar disposed between the blades. Cutter and rebar cutting device.

In the conventional rebar cutting machine, since the movable blade moves up and down in the rebar cutting space in which the fixed blade and the movable blade are arranged, the lower side of the movable blade was merely a drop space of the cutting rebar (for example, See Patent Document 1).

Therefore, as shown in FIG.11 (a)-(c), when the rebar 20 'is cut | disconnected with the lowering of the movable blade 2', the fixed blade (') is lowered below the movable blade 2'. The rebar portion close to 1 ') is bent in a bent shape, and the cut surface of the rebar 20' is likely to be greatly deformed. This phenomenon did not change as the distance from the fixed blade to the retracting mechanism was large even when the retracting mechanism to be received by the spring was provided outside the rebar cutting space as in Patent Document 1.

In addition, an auxiliary supporting plate of the rebar is mounted at the distal end of the conveying conveyor for supplying the reinforcing bar to the rebar cutting machine, which is capable of swinging up and down and urged upward by a spring, and the rebar is cut as the movable blade descends. When the tip of the auxiliary support plate swings downward to absorb the reaction force has also been proposed (see Patent Document 2, for example).

Japanese Unexamined Patent Publication No. 8-11015 Japanese Utility Model Model No. 6-5733

The above-described apparatus also has a structure in which the auxiliary support plate is far from the fixed blade of the rebar cutter and absorbs the reaction force by the up and down swing, so that when the rebar is cut by the lowering of the movable blade, it is fixed at the lower side of the movable blade. The rebar portion close to the blade is bent in a bent shape, which does not solve the problem that the cutting surface of the rebar is deformed.

It is therefore an object of the present invention to solve the above problems and to provide a rebar cutting machine and a rebar cutting device for suppressing deformation of the cutting surface of the rebar when the rebar is cut.

According to a first aspect of the present invention, the rebar is provided with a fixed blade, a movable blade which can be operated in close proximity to the fixed blade, and the fixed blade and the movable blade are displaced in the longitudinal direction of the rebar disposed between the blades. A rebar cutting machine having a cutter main body, comprising: a stage for receiving a reinforcing bar in the reinforcing cutting space in which the fixed blade and the movable blade are disposed, and the reinforcing bar before cutting at the lower side of the movable blade together with the fixed blade; A stage moving device mounted on a main body to move the stage up and down within the rebar cutting space, the stage moving device having a biasing means for biasing the stage upward, and the stage being moved as the movable blade descends. It is to allow it to descend with the cutting bar.

According to the first aspect of the present invention, when cutting the rebar by lowering the movable blade relative to the fixed blade, the rebar is received at the stage of the stage moving device together with the fixed blade. Furthermore, as the movable blade descends, the reinforcing bar is held between the movable blade and the stage below it, with the movable blade being bounded by a virtual shear surface between the fixed blade and the movable blade operating in close proximity to the fixed blade. Try to descend in parallel while shearing.

 Therefore, the rebar portion close to the fixed blade at the lower side of the movable blade can be prevented from being bent in a bent shape, and it is possible to suppress a large deformation of the cutting surface of the rebar.

According to a second aspect of the present invention, the biasing means is constituted by at least one of a spring and a pneumatic cylinder.

According to the second aspect of the present invention, it is possible to form the stage moving device simply and inexpensively.

According to a third aspect of the present invention, the rebar cutter body has a rebar outlet configured to be discharged in the radial direction with respect to the rebar placed on the fixed blade on the front side thereof in a plan view, and the knife tip of the movable blade is It is formed with the inclined surface which becomes lower as the side closer to the rebar of one side with respect to the several steel rebars mounted on the fixed blade, The said stage is comprised so that descending from the side closer to the rebar of the said one side can be carried out one by one.

According to the 3rd characteristic structure of this invention, in addition to being able to achieve the above-mentioned effect by the 1st characteristic structure of this invention, when there are a plurality of rebars put on the fixed blade, As the rebar is sandwiched between the cutting edge of the movable blade and the stage in order over the rebar, all the rebars can be neatly cut without heavy load on the movable blade.

Therefore, even if the number of rebars cut at one time by the rebar cutter increases, it is possible to cut each reinforcing bar evenly while suppressing deformation of the cut surface, and to take out the rebar outlet.

According to a fourth aspect of the present invention, the rebar cutter body has a rebar outlet configured to be discharged in the radial direction with respect to the rebar placed on the fixed blade on the front side thereof in a plan view, and the knife tip of the movable blade is The plurality of rebars placed on the fixed blade are formed in an inclined surface that is lower as the side closer to the reinforcing bar outlet, so that the stage is configured to be lowered sequentially from the side closer to the reinforcing bar outlet to the inside.

According to the fourth aspect of the present invention, when there are a plurality of rebars placed on the fixed blade, the rebar is cut between the cutting edges of the movable blades and the stage in order from the side closer to the rebar outlet, and the cutting blades are cut. All steel bars can be cut neatly without heavy loads.

Therefore, even if the number of rebars cut at one time by the rebar cutter increases, it is possible to cut each reinforcing bar almost uniformly while suppressing deformation of the cut surface and to take out the rebar outlet.

In addition, the blade edge of the movable blade is formed on the inclined surface that becomes lower as the side closer to the rebar outlet is closed, and the stage is configured to be lowered sequentially from the side closer to the rebar outlet to the inside. Therefore, as the movable blade provided with the inclined surface descends and approaches the fixed blade, the plurality of rebars placed on the fixed blade do not run away from the reinforcing outlet but are pushed inward from the reinforcing outlet to run over the fixed blade. Is prevented at the inner part opposite to the rebar discharge side, and as a result, it is possible to reliably cut all the rebars with a small load.

The fifth characteristic constitution of the present invention is a rebar outlet provided in the front side of the rebar cutting machine main body to be discharged in the radial direction with respect to the rebar placed on the fixed blade in a plan view, and in the rebar cutting space, A first extrusion device for extruding the reinforcing bar into the reinforcing bar outlet at an upstream side in the reinforcing bar length direction with respect to the virtual shear surface between the fixed blade and the movable blade; and in the reinforcing cutting space, the reinforcing bar length relative to the virtual shear surface And a second extrusion device for extruding the reinforcing bar into the reinforcing bar outlet on the downstream side in the direction.

According to the 5th characteristic structure of this invention, in the rebar cutting space of the rebar cutter which provided the movable blade and the fixed blade, it cut | disconnects short steel rebar which is hard to be carried out so that the tip side of rebar may not be placed in a 2nd conveyor apparatus. Also in a case, it discharges from the rebar discharge port to the front side of a rebar cutting machine by a 2nd extrusion apparatus. In addition, the remnant of the rebar remaining on the rear end side according to the cutting of the reinforcing bar is discharged from the reinforcing bar outlet to the outside of the rebar cutting machine by the first extrusion device, even if it is so short that it is not placed on the first conveyor device.

Therefore, it is not necessary to put a hand into the rebar cutting space of the rebar cutting machine and take out the short length of the reinforcing bar and the short length of the rebar residue, thereby reliably improving safety.

A sixth aspect of the present invention is the rebar discharge port provided on the front side of the rebar cutting machine main body in a plan view to discharge in the radial direction with respect to the rebar placed on the fixed blade, and in the rebar cutting space, A first extrusion device for extruding the reinforcing bar into the reinforcing bar outlet at an upstream side in the reinforcing bar length direction with respect to the virtual shear surface between the fixed blade and the movable blade; and in the reinforcing cutting space, the reinforcing bar length relative to the virtual shear surface. In the second extrusion device for extruding the reinforcing bar to the reinforcing bar outlet on the downstream side of the direction, the first guide plate for closing the place corresponding to the first extrusion device in the reinforcing bar outlet, and in the reinforcing bar outlet And a second guide plate for closing the place corresponding to the second extrusion device, and the first guide plate. A first drive device for switching from the closed state to the open state based on the extrusion operation of the first extrusion device, and switching the second guide plate from the closed state to the open state based on the extrusion operation of the second extrusion device; It further has a 2nd drive apparatus to operate.

According to the sixth feature configuration of the present invention, in addition to being able to achieve the above-described action effect according to the first feature configuration of the present invention, the reinforcing bar outlet is formed during and after cutting the first extrusion device and the second extrusion device. It is closed by the first guide plate and the second guide plate until it is operated. The first guide plate or the second guide plate is switched to the open state by the first drive device or the second drive device by the operation of the first extrusion device or the second extrusion device, and the safety can be further improved. Done.

According to a seventh aspect of the present invention, in the conveying direction of the reinforcing bar, the first conveyor apparatus which receives the reinforcing bar disposed upstream of the rebar cutting machine according to claim 1 and feeds the reinforcing bar into the rebar cutting machine, The second conveyor apparatus which takes in and pulls out reinforcing bars arranged downstream from the rebar cutting machine, and the first conveyor apparatus enables the rear end of the reinforcing bar fed into the rebar cutting machine to be returned from the rebar cutting machine. It is comprised, The rebar residue discharge mechanism which discharges the rebar returned by the said return operation to the horizontal side of the said 1st conveyor apparatus is provided.

According to the seventh aspect of the present invention, among the rebar residues left by cutting, the rear end side of the rebar is placed on the first conveyor device by returning the rebar residue from the rebar cutter by the retraction operation mechanism to reinforce the returned rebar. By the residue discharge mechanism, it is possible to discharge to the transverse side of the first conveyor apparatus. Therefore, it is possible for the operator to take out the cutting remnants of the rebar without approaching the rebar cutter, thereby improving the safety.

According to the present invention, the reinforcing bar portion close to the fixed blade at the lower side of the movable blade can be prevented from being bent in a bent shape, so that the cutting surface of the reinforcing bar can be largely suppressed from being deformed.

1 is an overall plan view of a rebar cutting device.
2 is a perspective view from the right side of the rebar cutting machine, showing a partial enlarged view.
3 is a perspective view from the left side of the rebar cutter, showing a partial enlarged view.
4 is a front view of the rebar cutting machine.
Fig. 5 is a side view of the cutting action of rebar, (a) shows a state before cutting, (b) shows a state during cutting, and (c) shows a cutting completion point.
6 is a front view of the cutting operation of the reinforcing bar, (a) shows the state before cutting, (b) shows the cutting, and (c) shows the cutting completion point.
FIG. 7 is a side view of rebar cutting action according to another embodiment, (a) shows a state before cutting, (b) shows a state during cutting, (c) shows a cutting completion time point, and (d ) Shows the discharging of the cutting bar by the first extrusion device.
It is an operation side view of the principal part which shows the middle of discharge of the cutting rebar by the 1st extrusion apparatus of other embodiment.
It is explanatory drawing which shows the positional relationship of the closest state of a rebar cutting machine, a 1st conveyor apparatus, and a 2nd conveyor apparatus.
10 is an explanatory view showing the relative positional relationship between the rebar cutting machine and the first conveyor device and the second conveyor device, (a) shows a state where the second conveyor device is farthest from the rebar cutting machine, and (b) shows a rebar The state which moved the 2nd conveyor apparatus 100mm from the position which is furthest from the cutter is shown near.
11 shows a front view of a rebar cutting action of the prior art, (a) shows a state before cutting, (b) shows a state during cutting, and (c) shows a state immediately after cutting.

EMBODIMENT OF THE INVENTION Below, embodiment of this invention is described based on drawing.

As shown in FIGS. 1-6, the rebar cutting device 100 has the fixed blade 1 and the movable blade 2 which can be operated close to the fixed blade 1 with the fixed blade 1 and the movable blade. The rebar cutter 3 provided with the rebar cutter main body 3A provided in the longitudinal direction of the rebar 20 arrange | positioned between (2) is provided. In addition, the rebar cutting device 100 receives the rebar 20 arranged upstream from the rebar cutting machine 3 in the conveying direction of the rebar 20 and feeds the rebar cutting machine 3 to the first conveyor device 4. ) And a second conveyor device 5 which receives the reinforcing bar 20 arranged downstream from the rebar cutting machine 3 in the conveying direction of the reinforcing bar 20 and takes out and conveys it. The rebar cutting machine main body 3A has a rebar discharge port 6 for discharging in the radial direction with respect to the rebar 20 placed on the fixed blade 1 on the front side of the rebar cutting machine 3 in plan view. In addition, the rebar cutting machine 3 has a virtual shear surface between the fixed blade 1 and the movable blade 2 operating close to the fixed blade 1 in the rebar cutting space S of the rebar cutting machine 3 ( 18) the first extrusion device 7 for extruding the rebar 20 to the reinforcing bar outlet 6 on the upstream side of the reinforcing rod longitudinal direction, and the reinforcing bar to the virtual shear surface 18 in the rebar cutting space S. The second extrusion apparatus 8 which extrudes the rebar 20 to the reinforcing bar outlet 6 on the downstream side in the longitudinal direction is provided.

In addition, the first extrusion device 7 extends and expands the first cylinder 7B and the first cylinder 7B so as to extrude the reinforcing bars and discharge them outward from the rebar cutting space S of the rebar cutting machine 3. The first reinforcing bar discharge plate 7A attached to the tip of the piston rod is composed of. Similarly, the second extrusion device 8 extends the piston rod tip of the second cylinder 8B and the second cylinder 8B, which can be stretched, in order to extrude the rebar and discharge it outward from the cutting space of the rebar cutting machine 3. The second rebar discharge plate 8A is mounted on the base.

In the reinforcing bar discharge port 6, as shown in FIG. 4, the 1st guide plate 9 which can close the said place is switchable in the closed state and the open state at the place corresponding to the 1st extrusion apparatus 7 It is prepared. Moreover, in the place corresponding to the 2nd extrusion apparatus 8, the 2nd guide plate 10 which can close the said place is provided so that switching operation is possible in the closed state and the open state. And the rebar cutting machine 3 has the 1st drive apparatus 11 which switches the 1st guide plate 9 from a closed state to an open state based on the extrusion operation of the 1st extrusion apparatus 7, and a 2nd The 2nd drive apparatus 12 which switches the guide plate 10 from the closed state to the open state based on the extrusion operation | movement of the 2nd extrusion apparatus 8 is provided.

In addition, the 1st guide plate 9 and the 2nd guide plate 10 are attached to 3 A of rebar cutter main bodies, respectively, so that it may swing up and down on the front side of the rebar discharge port 6, respectively. As described above, the first guide plate 9 is vertically rocked by the first drive device 11, and the second guide plate 10 is vertically rocked by the second drive device 12.

That is, the rebar outlet 6 is closed by the first guide plate 9 and the second guide plate 10 until the first extrusion device and the second extrusion device operate during and after cutting the rebar. It exists in a state (FIG. 5 (a)-(c)). Then, by the extrusion operation of the 1st extrusion apparatus 7 or the 2nd extrusion apparatus 8, the 1st guide plate 9 or 1st by the 1st drive apparatus 11 or the 2nd drive apparatus 12 is carried out. The 2 guide plates 10 are switched to the open state of the reinforcing bar outlet 6 (FIG. 5 (d)), and are configured to be able to improve the safety more.

The 1st conveyor apparatus 4 is comprised so that return operation of the rear end part of the rebar 20 fed into the rebar cutting machine 3 from the rebar cutting machine 3 is possible. Moreover, the rebar cutting device 100 is provided with the rebar residue discharge mechanism 15 which discharges the rebar 20 returned by the return operation to the horizontal side of the 1st conveyor apparatus 4.

That is, as shown in FIG. 1, the 1st conveyor apparatus 4 is comprised by 4 A of conveyors after the upstream feeding, and 4 B of feeding before downstream. Conveyor 4B is configured to be capable of forward and reverse rotation before forwarding, forward operation of advancing the rebar 20 and supplying it to the rebar cutting machine 3, and the rear end portion of the rebar 20 fed into the rebar cutting machine 3; The retraction operation of return operation from the rebar cutting machine 3 is possible.

And the rebar residue discharge mechanism 15 comprised from the arm 13 which can rock up-down and the cylinder 14 which drives the arm 13 up-and-down rocking is provided in the conveyor 4B before feeding. By the rebar residue discharge mechanism 15, the rebar residue on the rear end side returned from the rebar cutter 3 can be discharged to the residue stocker 16.

In addition, 30 in FIGS. 2 and 4 is a pinch roller. This pinch roller 30 is attached to the rebar cutter 3 so that it can move up and down, and cooperates with the support roller 31 which is provided in the front end side (downstream side) of the conveyor 4B before feeding, and rotates forward and reverse, The rebar 20 placed on the support roller 31 is sandwiched together with the pinch roller 30 so as to be supplied to the rebar cutter 3 or can be returned.

As shown in Figs. 1, 9 and 10, the second conveyor apparatus 5 is provided with a stopper 17 which can be placed at a predetermined interval in the longitudinal direction and operable up and down, and the rebar cutter 3 It is comprised so that perspective movement operation is possible within set distance. From the plurality of stoppers 17 from the virtual shear surface 18 formed by the movable blade 2 and the fixed blade 1 of the rebar cutting machine 3 by the perspective movement operation of the 2nd conveyor apparatus 5. It is comprised so that the cutting dimension of the rebar 20 can be set by adjusting the distance to the selected stopper 17.

In other words, the separation distance between the plurality of stoppers 17 is determined, and when cutting the rebar 20 having a length other than the length dimension from the virtual shear surface 18 to each stopper 17, the second conveyor apparatus ( 5) is moved and it is comprised so that cutting of the rebar 20 of predetermined dimension is possible.

As shown in FIG. 5, FIG. 6, the fixed blade 1 is attached in the state in which the knife edge was along the horizontal surface or the substantially horizontal surface. The movable blade 2 is formed in the inclined surface which becomes lower toward the side which is closer to the rebar discharge opening 6 at the edge. When the inclined surface (knife end) is fixed and placed on the plurality of rebars 20, the inclined surfaces (cut ends) are cut in order from those close to the rebar outlet 6 side in order to prevent a large load from being applied to the movable blade 2 at one time. The deformation | transformation of the cut surface of each of the some steel bars 20 is suppressed.

Moreover, in the rebar cutting space S, the supporting plate 19 which receives the reinforcing bar 20 put in the fixed blade 1 closely with the fixed blade 1 is provided.

The rebar cutting machine 3 is provided with the movable blade 2 which can be operated close to the fixed blade 1 so as to be displaced in the longitudinal direction of the rebar disposed between the two blades 1 and 2. The stage 24 which receives the rebar 20 before cutting with the fixed blade 1 in the lower side of the movable blade 2 is the rebar cutting space S by the fixed blade 1 and the movable blade 2. It is provided so that the stage movement apparatus 25 can move up and down in order to allow it to descend | fall with a to-be-cut rebar according to the fall of the movable blade 2 within. This stage movement apparatus 25 is attached to 3 A of rebar cutter main bodies. In addition, the stage moving device 25 is provided with a urging means 21 for urging the stage 24 upward.

The urging means 21 is comprised by the pneumatic cylinder. By the adjustment mechanism of the amount of air in the pneumatic cylinder or the pressure, adjustment of the reaction force with respect to the shear pressing force by the movable blade 2, the lower limit of the stage 24 lowering of the stage moving device 25, and FIGS. 2, 4 and FIG. As shown in FIG. 6, setting of the up-down position at the time of discharge | disconnection of the cutting rebar by the 1st extrusion apparatus 7 is attained.

The stage movement device 25 is comprised so that it may operate in order as shown in FIGS.

1. With respect to the plurality of reinforcing bars 20 placed on the fixed blade 1, the movable blade 2 which forms the tip of the blade as an inclined surface is lowered.

2. As the movable blade 2 descends, the reinforcing bar close to the reinforcing bar 6 is sequentially cut from the reinforcing bar to the inner bar, and the stage moving device 25 also descends from the part near the reinforcing bar 6 to the inside in order. . That is, the stage 24 is inclined and lowered by different contracting actions of a plurality of air cylinders which support the stage 24 from below to upward (Fig. 5 (a)-(c), Fig. 5). 6 (a)-FIG. 6 (b)).

3. When all the rebars 20 are cut, the movable blade 2 is raised to return to the position before the original cutting operation.

4. The stage 24 of the stage shifting device 25 is lifted up and stopped until it becomes horizontal or substantially horizontal posture at the setting position for discharge below the upper surface position of the fixed blade 1 (FIG. 6 (c)). ).

5. With the stage 24 held at the set position for discharging, the reinforcing steel cut by the extension operation of the first cylinder 7B in the first extrusion device 7 is the first reinforcing bar discharge plate 7A. Is discharged from the reinforcing bar outlet to the outside of the reinforcing bar cutting space (FIGS. 2, 5 (d) and 6 (c)).

6. After discharging the cutting bar, the first rebar discharge plate A of the first extrusion device 7 returns to its original position by contraction of the first cylinder 7B, and the stage moving device 25 The stage 24 of the return rises to the same height as the upper surface position of the fixed blade 1.

[Rebar cutting operation method]

As shown in FIGS. 9-10, in the state in which the 2nd conveyor apparatus 5 was the closest to the rebar cutting machine 3 (FIG. 9), the virtual upstream with the 1st stopper 17A and 17 of the most upstream side is shown. The distance of the end face 18 is set to 500 mm, the distance between each stopper 17 is set to 500 mm, and the distance to the rebar cutting machine 3 of the second conveyor apparatus 5 is set to 500 mm. In this case, if the 2nd conveyor apparatus 5 cannot move, it can usually cut only the rebar 20 of the multiple times length of 500 mm. In contrast, for example, the following procedure may be performed to cut the rebar 20 having a length of 100 mm.

The 1st, 2nd conveyor apparatus 5 is separated 500 mm away from the rebar cutting machine 3, and the front-end | tip part of the reinforcing bar 20 is one stopper 17B (17) of one of the plurality of stoppers 17 (for example, virtual Positioning is made by hitting the stopper at a position of 2500 mm from the front end surface 18. And the rebar 20 is cut | disconnected by lowering the movable blade 2 so that the remainder of the rebar 20 may be made into the minimum dimension, or the length which the rebar 20 of the next target dimension can cut | disconnect is cut (FIG. 10 (a)).

2, the rebar residue on the upstream side is discharged to the remnant stocker 16 on the side outside of the first conveyor apparatus 4 by the rebar discharge mechanism (FIG. 1).

3, after moving the 2nd conveyor apparatus 5 with the 100 mm rebar cutter 3, the movable blade 2 is cut down with respect to the fixed blade 1, and the 100 mm rebar 20 is cut | disconnected. Then, the first guide plate 9 is switched from the closed state to the open state, and the cut bar is extruded from the reinforcing bar outlet 6 to the outside of the reinforcing bar cutter 3 by the first extrusion device 7 and discharged. (Fig. 10 (b)).

4, After that, the second conveyor device 5 is moved 100 mm closer to the rebar cutter 3, and then a series of operations (operation of the above 3 to 4) to be cut by the lowering operation of the movable blade 2 is performed. Repeat times.

5, In the case of further increasing the number of cuts, the reinforcing rods collide with the stoppers 17 on the 500 mm upstream side than the stoppers 17B and 17, and the above operations are repeated.

In addition, it goes without saying that the rebar 20 of predetermined length can be cut | disconnected by setting each movement distance of the 2nd conveyor apparatus 5.

[Other Embodiments]

Another embodiment will be described below.

As shown to <1> FIG.7 (a)-(d), the stage moving apparatus 251 may be formed so that the stage 241 may fall in parallel as it is in a horizontal position at the time of rebar cutting.

<2> The urging means 21 may be comprised with a spring instead of a pneumatic cylinder.

As shown in FIG. 8, at the time of discharging the cutting rebars placed on the stage 242, the first extrusion device 72 is used in a state where the stage 242 is raised and returned to the upper surface position of the fixed blade. It may be made to discharge.

As shown in Fig. 3 and Fig. 4, the first discharge guide plate 22 in which the tip side is inclined downward is attached to the rebar discharge port side end portion of the support plate 19 so as to allow sliding of the rebar downward. You may be. In addition, as shown in FIG. 7, in the stage 241, the second discharge guide plate 231 that vertically moves along with the vertical movement of the stage 241 may be attached to the rebar discharge port side end.

<5> The setting of the cutting length having a length smaller than the distance between adjacent stoppers is not limited to 100 mm but may be set steplessly. Moreover, when cutting the length which added the distance smaller than the distance between adjacent stoppers to the distance between the stopper selected from the some stopper and the virtual shear surface 18, when moving a 2nd conveyor apparatus similarly to the said operation method, good.

<6> The first extrusion device and the second extrusion device may be integrally molded products.

<7> The first guide plate and the second guide plate may be integrally molded articles.

In addition, as mentioned above, although the code | symbol was described in order to make a convenient contrast with drawing, this invention is not limited to the structure of an accompanying drawing by the said writing. In addition, of course, it can be implemented in various forms in the range which does not deviate from the summary of this invention.

Although embodiment of this invention is comprised as mentioned above, you may have a structure as enumerated next more comprehensively.

The rebar cutting device of the present invention is provided with a fixed blade, a movable blade close to the fixed blade, and a rebar cutting machine having the fixed blade and the movable blade displaced in the longitudinal direction of the rebar disposed between the blades. And a first conveyor device that receives the reinforcing bar disposed upstream from the reinforcing bar cutter in the conveying direction of the reinforcing bar and feeds the reinforcing bar to the reinforcing bar cutting machine, and reinforcing bar disposed downstream of the reinforcing bar cutting machine in the conveying direction of the reinforcing bar. The rebar cutting device provided with the 2nd conveyor apparatus which takes in and takes out and conveys, WHEREIN: The rebar discharge port which is provided in the front side of the said rebar cutter main body in plan view, and enables to discharge | release it in the radial direction with respect to the rebar put on the said fixed blade. And in the rebar cutting space of the rebar cutting machine, A first extrusion device for extruding the reinforcing bar into the reinforcing bar outlet on an upstream side of the reinforcing bar in a longitudinal direction with respect to a virtual shear surface between the stationary blade and the movable blade operating close to the fixed blade; and in the reinforcing bar cutting space, the virtual And a second extrusion device for extruding the reinforcing bar into the reinforcing bar outlet on the downstream side of the reinforcing rod longitudinal direction with respect to the shear surface.

The rebar cutting device of the base material includes: a first guide plate enabling closing of a place corresponding to a first extrusion device at the rebar discharge port; a second guide plate capable of closing a place corresponding to a second extrusion device; A first driving device for switching the first guide plate from the closed state to the open state based on the extrusion operation of the first extrusion device, and the closed state based on the extrusion operation of the second extrusion device; It further has a 2nd drive apparatus which switches to open state.

Moreover, the other rebar cutting device of this invention provides the fixed blade, the movable blade which can operate close to the said fixed blade, and the said fixed blade and the said movable blade in the position shifted in the longitudinal direction of the rebar arrange | positioned between these blades, A rebar cutting machine, a first conveyor device for receiving and feeding the reinforcing bar upstream from the reinforcing bar cutter in the conveying direction of the reinforcing bar, and feeding the reinforcing bar to the reinforcing bar cutting machine, and placing the reinforcing bar downstream of the reinforcing bar cutting machine in the conveying direction of the reinforcing bar A reinforcing bar cutting device having a second conveyor device for receiving and taking out conveyed reinforcing bars, the rebar cutting device comprising: a retraction operation mechanism provided on the first conveyor device to return a rear end of the reinforcing bar fed to the rebar cutting machine from the rebar cutting machine; Reinforcing bar returned by the retraction operation mechanism of the first conveyor device And a reinforced residue discharge mechanism for the lateral discharge.

1: fixed blade
2: movable blade
3: rebar cutting machine
3A: rebar cutter body
4: first conveyor device
5: second conveyor device
6: rebar outlet
7: first extrusion device
8: second extrusion device
9: first guide plate
10: second guide plate
11: first driving device
12: second drive device
15: Rebar residue discharge mechanism
18: virtual shear plane
20: rebar
21: means of taxation
24: stage
25: stage moving device
S: Rebar cutting space

Claims (7)

In the rebar cutter provided with the fixed blade, the movable blade which can be operated close to the said fixed blade, and the rebar cutter main body which arrange | positions the fixed blade and the movable blade in the longitudinal direction of the rebar arrange | positioned between these blades. ,
A rebar cutting space in which the fixed blade and the movable blade are disposed;
A stage for receiving the reinforcing bar before cutting at the lower side of the movable blade together with the fixed blade;
It is mounted to the rebar cutter body having a stage moving device for moving the stage up and down in the rebar cutting space,
The stage moving device has a urging means for urging the stage upwards,
Reinforcement cutting machine, characterized in that allowing the stage to be lowered with the cutting rebar in accordance with the lowering of the movable blade. The method of claim 1,
And the urging means is constituted by at least one of a spring and a pneumatic cylinder. The method of claim 1,
The rebar cutting machine main body has a rebar outlet for discharging in the radial direction with respect to the rebar placed on the fixed blade on the front side in plan view,
The cutting edge of the movable blade is formed of an inclined surface that is lower as the side closer to the rebar on one side with respect to the plurality of rebars placed on the fixed blade,
The stage is configured to be lowered sequentially from the side close to the reinforcing bar on the one end side. The method of claim 1,
The rebar cutting machine main body has a rebar outlet for discharging in the radial direction with respect to the rebar placed on the fixed blade on the front side in plan view,
The cutting edge of the movable blade is formed of an inclined surface that is lower as the side closer to the reinforcing bar outlet with respect to the plurality of rebars placed on the fixed blade,
The stage is a rebar cutter, characterized in that configured to be descended sequentially from the side close to the reinforcing bar outlet inward. The method of claim 1,
A reinforcing bar outlet provided on the front side of the reinforcing bar cutter main body in a plan view so as to be discharged in the radial direction with respect to the reinforcing bar placed on the fixed blade;
A first extrusion device in the reinforcing bar cutting space, for extruding reinforcing bar into the reinforcing bar outlet at an upstream side in the rebar longitudinal direction with respect to a virtual shear surface between the fixed blade and the movable blade;
In the rebar cutting space, the rebar cutting machine further comprises a second extrusion device for extruding the reinforcing bar into the reinforcing bar outlet on the downstream side of the reinforcing rod longitudinal direction with respect to the virtual shear surface. The method of claim 1,
A reinforcing bar outlet provided on the front side of the reinforcing bar cutter main body in a plan view so as to be discharged in the radial direction with respect to the reinforcing bar placed on the fixed blade;
A first extrusion device in the reinforcing bar cutting space, for extruding the reinforcing bar into the reinforcing bar outlet at an upstream side in the longitudinal direction of the reinforcing bar with respect to the virtual shear surface between the fixed blade and the movable blade;
A second extrusion device in the reinforcing bar cutting space, for extruding the reinforcing bar into the reinforcing bar outlet on the downstream side in the longitudinal direction of the reinforcing bar with respect to the virtual shear surface;
A first guide plate in the reinforcing bar outlet, the first guide plate enabling closing of a place corresponding to the first extrusion device;
A second guide plate in the reinforcing bar outlet, the second guide plate enabling closing of a place corresponding to the second extrusion device;
A first drive device for switching the first guide plate from a closed state to an open state based on an extrusion operation of the first extrusion device;
And a second drive device for switching the second guide plate from the closed state to the open state based on the extrusion operation of the second extrusion device. A first conveyor device for receiving the reinforcing bar arranged upstream than the reinforcing bar cutting machine according to claim 1 in the conveying direction of the reinforcing bar, and feeding the reinforcing bar to the reinforcing bar cutting machine;
It has a 2nd conveyor apparatus which takes out the reinforcement arrange | positioned downstream from the said reinforcement cutting machine in the conveyance direction of the said reinforcement, and takes out and conveys it,
The first conveyor device is configured to be capable of returning the rear end of the reinforcing bar fed into the rebar cutting machine from the rebar cutting machine.
A rebar cutting device further comprising: a rebar residue discharge mechanism for discharging the rebar returned by the return operation to the lateral side of the first conveyor device.

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