JP5319181B2 - Rebar processing equipment - Google Patents

Description

  A bending base having a posture along the vertical direction is provided, and a bending part for bending a reinforcing bar along the surface thereof is provided on the bending base, and a shear for cutting the reinforcing bar supplied to the bending part is provided. The present invention relates to a reinforcing bar processing apparatus provided with a blade.

  Conventionally, the space on the bending base of the reinforcing bar processing apparatus, that is, the space in the direction orthogonal to the surface of the bending base has been open (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 11-285733

  In the above-described conventional rebar processing device, the rebar supplied to the bending section is bent on the bending substrate, or a single rebar is bent multiple times to bend every time the rebar is bent. When supplying, the rebar may be twisted, and the bent product after processing becomes a three-dimensional twisted structure protruding from the plane along the surface of the bent base, resulting in poor quality. There was a fear.

  Accordingly, an object of the present invention is to provide an apparatus that solves the above-described problems and prevents the reinforcing bars from being twisted and bent during bending.

According to a first characteristic configuration of the present invention, a bending base having a posture along the vertical direction is provided, and a bending portion for bending a reinforcing bar along the surface is provided on the bending base, and the bending processing is performed. A rebar processing device provided with a shearing blade for cutting a rebar supplied to a section, wherein a gap allowing the bending of the rebar along the surface of the bending base is provided between the bending base and the bending base. A support mechanism that supports a hard cover plate that covers a bending movable range of a reinforcing bar by the bending portion along a surface of the bending base, and that the hard cover plate is movable in a perspective direction with respect to the surface of the bending base. A support position changing operation device for changing the support position by the support mechanism to a cover action position where the hard cover plate is close to the bending base and a cover action release position away from the bending base. And a support frame for suspending and supporting the hard cover plate from above the bending base, and a pivot that pivotally supports the support frame in a perspective direction of the bending base. The support mechanism is configured by being attached to the upper part of the main body of the processing base, and an extension drive cylinder for swinging the support frame is attached across the main body and the support frame, and the support position changing operation device is provided. It is where it is configured .

[Action and effect]
According to the first characteristic configuration of the present invention, when the reinforcing bar supplied to the bending portion is bent, even if the reinforcing bar is bent along the surface of the bending base, the reinforcing bar is hard covered. Is restricted by the gap between the bending base and the hard cover plate, and twists when a single reinforcing bar is sent to the bending part for the next bending process following the bending process. Even if the phenomenon occurs, it is restricted by the hard cover plate, so it is bent in the gap. As a result, the processed product is a flat bent product along the bending substrate, and the finished product is finished. Maintain good quality products.
In addition, when the reinforcing bar is cut by the shearing blade after bending, the hard cover plate covers the bending movable range, so that the processed product does not jump out of the bending base and follows the base surface. The product can be dropped and removed, ensuring the safety of the working environment.

  By providing a support mechanism for the hard cover plate, it can be expected to prevent twisting at the time of the bending operation and prevention of scattering at the time of cutting, and the position can be changed to the covering action release position by the support position changing operation device. Therefore, in the case of processing with only one bent portion, it can be bent without resistance by avoiding contact with the hard cover plate, and improvement in processing efficiency can be expected.

  Since the hard cover plate is suspended and supported from above by a support frame and is swingably attached to the main body of the bending base, there are no obstacles below the bent portion, and as a result, the processed rebar Good workability can be maintained without hindering the removal of the container.
  In addition, the support frame can be quickly swung by expansion and contraction of the telescopic drive cylinder, so that the support position can be changed smoothly.

According to a second characteristic configuration of the present invention, the hard cover plate is positioned at a covering action position when the reinforcing bar is bent by the bending portion, and the hard cover is cut when the reinforcing blade is cut by the shearing blade after the bending process. A control device for controlling the operation of the support position changing operation device is provided so as to cover the plate and change it to the action release position.

[Action and effect]
The control device automatically cuts the hard cover plate into the cover action position when bending and not only prevents the twisting of the reinforcing bar when machining, but also changes to the cover release position when cutting. The processed product can be smoothly dropped by removing the contact resistance with the cover plate, and can be taken out efficiently.

  Embodiments of a reinforcing bar processing apparatus according to the present invention will be described below with reference to FIGS.

  As shown in FIGS. 1, 2, and 3, a bending base 1 made of iron plate formed on an inclined surface that protrudes toward the reinforcing bar processing space side is provided on the lower side, and a reinforcing bar pickup device 2 is used for each. A single rebar 3 picked up from a bundle of a plurality of rebars 3 at a fixed scale and fed by a rebar supply drive unit 5 through a rebar take-up unit 4 is brought along the surface of the bending base 1 along the surface thereof. Thus, a bending portion 6 for bending the reinforcing bar 3 is provided to constitute a reinforcing bar processing apparatus.

As shown in FIGS. 1, 2, 6, and 7, the bending portion 6 includes both a fulcrum shaft 7 and a bending roller 8 that can be rotated around the fulcrum shaft 7. A shear that cuts off the reinforcing bar 3 that is moved in a direction perpendicular to the base 1 (FIGS. 6 and 7) and is slidably attached along the base surface within a set range in the vertical direction. The blade 9 is provided as shown in FIGS.
That is, when bending upward with respect to the rebar 3 supplied, the fulcrum shaft 7 is arranged such that the fulcrum shaft 7 is on the upper side and the bending roller 8 is on the lower side with respect to the rebar 3 supplied from the reinforcing bar supply drive unit 5. And the bending roller 8 are protruded (projection displacement from FIG. 7 to FIG. 6), the bending roller 8 is rotated upward around the fulcrum shaft 7 and bent downward. The fulcrum shaft 7 and the bending roller 8 are displaced up and down so that the bending roller 8 comes to the shaft 7 and the upper side, and the bending roller 8 is rotated downward around the fulcrum shaft 7. After the set dimension and the set number of times of bending, the shearing blade 9 is used for cutting.

  Further, the reinforcing bar processing apparatus is provided with a reinforcing bar receiving member 10 that can receive the reinforcing bar 3 that is cut along the surface of the bending base 1 by being cut by the shearing blade 9. A first support mechanism 11 that supports the receptive position changeable up and down along the surface is provided, and the rebar 3 received by the rebar receiving member 10 is formed by a belt-type conveyor that can be conveyed along the bending base 1. The transport mechanism 12 and a side plate 13 that guides the receiving reinforcing bar 3 on the lateral side along the transport mechanism 12 are provided on the reinforcing bar receiving member 10 so as to be transported in a lateral direction farther from the lower side of the bending portion 6. And a clearance allowing the bending movement of the reinforcing bar 3 along the surface of the bending base 1 is provided between the bending base 1 and the bending movable range of the reinforcing bar 3 by the bending portion 6 is covered. Hard cover The plate 14, are provided along a bending base 1 of the surface to form an iron plate.

As shown in FIGS. 1 to 5, the first support mechanism 11 is provided with a first support frame 11 a for supporting the reinforcing bar receiving member 10 from the upper side of the bending work base 1, and the first support frame 11. The support position of the reinforcing bar receiving member 10 in 11a is configured to be vertically displaceable, and the reinforcing bar receiving member 10 is moved up and down by the drive transmission of the drive motor 17 through the transmission chain 15 and the sprocket 16 from above the bending work base 1. A vertical displacement drive mechanism 18 is provided.
Then, by attaching the upper part of the first support frame 11a to the upper part of the reinforcing bar processing apparatus main body via the first pivot shaft 19, the first support frame 11a can be swung freely in the perspective direction with respect to the surface of the bending work base 1. Then, a first telescopic drive cylinder 21 is provided as a drive device that drives and swings the first support frame 11a between the first support frame 11a and the reinforcing bar processing apparatus main body 20, and the reinforcing bar receiving member 10 is bent. The first support mechanism 11 is provided with a state switching mechanism for changing between a reinforcing bar receiving action state (FIG. 4) close to the surface of the processing base 1 and a non-action state (FIG. 5) separated from the surface of the bending base 1. In addition, the reinforcing bar receiving member 10 is brought into a non-operating state (FIG. 5) when the reinforcing bar 3 is bent by the bending unit 6, and when the reinforcing bar is cut by the shearing blade 9, the reinforcing bar receiving member 10 is used. Rebar action receiving state is provided with first control device for driving switch (FIG. 4).

  In addition to the automatic switching control by the first control device, the first control device is brought into a control release state, and the state switching mechanism can be switched by a manual operation.

  The transport mechanism 12 provided in the reinforcing bar receiving member 10 integrates a rubber belt on the outer surface of an endless chain that is rotated by a rotation driving motor 12a so that the receiving reinforcing bar 3 does not jump, and cuts the processed reinforcing bar cut on the rubber belt. As shown in FIG. 3, the received reinforcing bars 3 are transported in the lateral direction along the bending base 1 and discharged onto the reinforcing bar base 22.

As shown in FIG. 13, a guide plate 23 is provided at the end portion of the reinforcing bar receiving member 10 for discharging the reinforcing bar 3 onto the reinforcing bar receiving base 22 so as to approach the bending base 1 toward the end side in plan view. The bending rebar is transported and released in a posture leaning against the bending base 1 with certainty.
By discharging while transporting in this way, the posture of the reinforcing bar 3 is aligned at the time of discharge, and it is easy to bundle a plurality of bars.

As shown in FIGS. 1, 2, 3, and 6 to 8, a second support mechanism 24 that supports the hard cover plate 14 so as to be movable in a perspective direction with respect to the surface of the bending base 1 is provided. The plate 14 is supported by the second support mechanism 24 at a covering action position (FIGS. 6 and 8b) close to the bending base 1 and a covering action release position (FIGS. 7 and 8a) away from the bending base 1. A support position changing operation device 25 for changing the position is provided.
In other words, a second support frame 24a is provided for suspending and supporting the hard cover plate 14 from above the bending base 1, and the second support frame 24a is pivotally supported in a swingable direction in the bending base 1. The second support shaft 24b is attached to the upper part of the main body of the bending work base 1 to constitute the second support mechanism 24, and the second telescopic drive cylinder 25a that swings the second support frame 24a is connected to the main body and the second support mechanism 24a. The support position changing operation device 25 is configured to be mounted over the two support frames 24a.

The hard cover plate 14 is a rectangular plate, and the gap between the hard cover plate 1 and the bending base 1 increases toward the outside so that the reinforcing bars 3 can easily enter between the hard cover plate 14 and the base plate 1 at each side. An inclined surface portion 14a is provided.
In addition, the hard cover plate 14 can change the gap between the hard cover plate 14 and the bent base 1 in accordance with the diameter of the reinforcing bar 3 to be processed with respect to the second support frame 24a. It is attached detachably through.

  At the time of bending the reinforcing bar 3 by the bending portion 6, the hard cover plate 14 is positioned at the covering position (FIGS. 6 and 8 b), and at the time of cutting by the shear blade 9 after the bending of the reinforcing bar 3, the hard covering plate 14 is provided with a second control device for controlling the operation of the support position changing operation device 25 so as to change the cover 14 to the action release position (FIGS. 7 and 8a).

  In addition to the automatic support position change control by the second control device, the support position can be changed by manual operation by putting the second control device in a controlled release state.

As shown in FIGS. 9 to 12, the reinforcing bar supply driving unit 5 takes the reinforcing bar 3 and feeds the reinforcing bar 3 from one end side to the reinforcing bar cutting device 28 provided with the shearing blade 9. The first reinforcing bar 26 and the second reinforcing bar feeding apparatus 27 are provided in the reinforcing bar feeding direction, and the first reinforcing bar feeding apparatus 26 and the second reinforcing bar feeding apparatus 27 perform a first feeding operation of the reinforcing bar 3. A drive switching mechanism is provided so that the rebar 3 fed to the rebar cutting device 28 from the drive state can be switched to the second drive state in which the rebar 3 is pulled back from the rear end side so as to be supplied to the rebar remaining material discharge unit 29.
The first reinforcing bar feeding device 26 is provided with a first rotation driving roller 26a that can be driven forward and backward and a first idler roller 26b that presses the reinforcing bar 3 against the first rotation driving roller 26a. The first revolving roller 26b is provided with a reinforcing bar rear end detecting mechanism for detecting that the rear end of the reinforcing bar has passed due to the proximity of the first idler roller 26b to the rotation driving roller 26a. Is provided with a second rotation driving roller 27b that can be driven forward and backward and a second idler roller 27b that presses the reinforcing bar 3 against the second rotation drive roller 27b, and a rotary encoder is attached to the second idler roller 27b. The rebar movement amount measuring mechanism is configured.

Between the first reinforcing bar feeding device 26 and the second reinforcing bar feeding device 27, there is provided a reinforcing bar clamp device 30 comprising a pair of fixed clamps 30a and vertically movable clamps 30b that move relatively far from each other. A state switching mechanism is provided for switching between a clamp operation state (FIG. 9) in which the reinforcing bar clamp device 30 is moved close to each other and a clamp non-operation state (FIG. 10) in which the rebar clamp device 30 moves away from each other.
And, by using the state switching mechanism, the rebar clamp device 30 is put into a clamp operation state after passing through the rear end of the rebar (FIG. 11c), and the rebar 3 is pulled back to be used as a stopper for abutting the rear end of the rebar 3. The stopper is configured to be switchable between a reinforcing bar abutting operation state and a non-operation state.

When the fixed rebar 3 is bent by the drive switching mechanism with a set size and a set number of times, the first drive state is set, but after cutting the processed rebar (FIG. 11a), it is shown in FIGS. 11b to 11e. As described above, when returning from the first driving state to the second driving state and pulling back the remaining reinforcing bar remaining material to the reinforcing bar residual material discharging unit 29, the length of the remaining material can be discharged to the set length. The third control device is configured as follows.
That is, in the first driving state, the stopper is maintained in the non-operating state, and the second rebar feeding device 27 and the rebar movement amount measuring mechanism perform the first operation based on the passage detection of the rear end of the rebar by the rear end detection mechanism. A first step operation command (FIG. 11b) for performing a constant feed movement of the rear end of the reinforcing bar from the single reinforcing bar feeding device 26, and a switching command for giving a reinforcing bar abutment action state to the stopper after the first step operation command. The second switching operation command (FIG. 11 c) for giving a switching command to the drive switching mechanism to enter the second driving state and abutting the rear end of the reinforcing bar against the stopper, and the second step operation command after which the stopper is inactivated. Perform the pull-back operation while measuring the rebar movement amount by the rebar movement amount measurement mechanism, and the length set by the rebar remaining material length setting means from the rear end of the rebar to the rebar front side. The third step operation command (FIG. 11d) for temporarily stopping the pull-back operation when the position reaches the rebar cutting device 28, and the rebar 3 by operating the rebar cutting device 28 after the third step operation command. After the fourth step operation command (FIG. 11e) for cutting to the set length for use and the fourth step operation command, the second driving state is continued and the reinforcing bar 3 cut to the set length for the remaining material is replaced by the reinforcing bar residual material discharging portion. The third control device is configured to sequentially issue the fifth step operation command to be supplied to 29.
In addition, the third control device is not only configured to be able to change and adjust the rebar remaining material setting length, but when the rebar remaining material is not reused, the automatic control is canceled and the rebar remaining material is left as it is. It is also possible to discharge without trimming to the set length.

[Another embodiment]
Other embodiments will be described below.

<1> The bending work base 1 may be formed so that the surface is not a sloped surface but along the surface. <2> The transport mechanism 12 may be a chain type conveyor or a roller type conveyor other than the belt type conveyor.
<3> The conveyance direction by the conveyance mechanism 12 may be a direction away from the bending substrate 1 as long as it is away from the bending substrate 1 in addition to the lateral direction.
<4> The support of the reinforcing bar receiving member 10 by the first support frame 11a may be attached so as to be movable in parallel in a perspective direction with respect to the surface of the bending substrate, in addition to swinging.
<5> The support of the hard cover plate 14 by the second support frame 24a may be attached to the bending base 1 so as to be movable in parallel, in addition to swinging.
<6> The hard cover plate 14 may be a hard material other than the iron plate.
<7> The reinforcing bar clamping device 30 may be arranged not only between the first reinforcing bar feeding device and the second reinforcing bar feeding device but also on the lower side thereof. In this case, the stopper is a reinforcing bar. It is necessary to provide between the first reinforcing bar feeding device and the second reinforcing bar feeding device separately from the clamp device.

  In addition, as mentioned above, although the code | symbol was written in order to make contrast with drawing convenient, this invention is not limited to the structure of an accompanying drawing by this entry. In addition, it goes without saying that the present invention can be carried out in various modes without departing from the gist of the present invention.

Front view of the entire processing equipment incorporating the reinforcing bar processing device described in the embodiment The perspective view of the reinforcing bar processing apparatus of this embodiment Front view of the reinforcing bar processing apparatus of this embodiment Side view of the reinforcing bar processing apparatus of this embodiment The side view which shows the non-operation state of the reinforcing bar receiving member of this embodiment Vertical section side view of the main part of this embodiment Vertical section side view of the main part of this embodiment (A) The principal part perspective view which shows the cover action release position of a hard cover board, (b) The principal part perspective view which shows the cover action position of a hard cover board The front view which shows the bending process part and rebar supply drive part of this embodiment Side view showing the bending portion and the reinforcing bar supply drive portion of the present embodiment (A)-(e) is operation explanatory drawing which shows the relationship between the bending process part of this embodiment, and a reinforcing bar supply drive part. Side view of main part of reinforcing bar clamp device of this embodiment The top view of the principal part of this embodiment

DESCRIPTION OF SYMBOLS 1 Bending process base 6 Bending part 9 Shearing blade 10 Reinforcing bar receiving member 11 Support mechanism 11a Support frame 12 Conveyance mechanism 14 Hard cover plate 19 Pivot shaft 24 Support mechanism 24a Support frame 24b Pivot shaft 25a Telescopic drive cylinder 26 First rebar Feeder 26a First drive roller 26b First idler roller 27 Second reinforcing bar feeder 27a Second rotary drive roller 27b Second idler roller 28 Rebar cutting device 29 Rebar remaining material discharge part

Claims (2)

A bending base having a posture along the vertical direction is provided, and a bending part for bending a reinforcing bar along the surface thereof is provided on the bending base, and a shear for cutting the reinforcing bar supplied to the bending part is provided. A rebar processing device provided with a blade,
A hard cover plate that covers a bending movable range of the reinforcing bar by the bending portion is provided with a clearance allowing the bending movement of the reinforcing bar along the surface of the bending base to be bent between the bending base and the bending base. Along the surface of
A support mechanism for supporting the hard cover plate so as to be movable in a perspective direction with respect to the surface of the bending base is provided, and a covering action position in which the hard cover plate is close to the bending base and a cover away from the bending base. Provide a support position change operation device for changing the support position by the support mechanism at the action release position,
A support frame for suspending and supporting the hard cover plate from above the bending work base is provided, and a pivot shaft for pivotally supporting the support frame so as to be swingable in a perspective direction of the bending work base is provided on the bending work base. The support mechanism is configured by being attached to the upper part of the main body, and an extendable drive cylinder for swinging the support frame is mounted across the main body and the support frame to constitute the support position changing operation device. A rebar processing device. At the time of bending the reinforcing bar by the bending portion, the hard cover plate is positioned at the covering action position, and at the time of cutting by the shearing blade after the bending process of the reinforcing bar, the hard covering plate is changed to the covering action releasing position. The rebar processing apparatus according to claim 1, further comprising a control device that controls the operation of the support position changing operation device.

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