JP7128992B2 - Rebar bending equipment - Google Patents

Description

In the present invention, the fulcrum shaft extending in the vertical direction and the bending roller rotatable about the fulcrum shaft are both provided with support surfaces extending in the lateral direction perpendicular to the axis of the fulcrum shaft. a reaction force receiving portion attached to the bending base and receiving a bending reaction force acting on the reinforcing bar due to the rotating operation of the bending roller that bends the reinforcing bar; The present invention relates to a reinforcing bar bending apparatus provided with a reinforcing bar bending machine for bending in a direction.

Conventionally, in the reinforcing bar bending machine, a reinforcing bar is manually supplied between a fulcrum shaft and a bending roller for bending (no appropriate literature is found).

In the above-described conventional reinforcing bar bending apparatus, when the reinforcing bar is bent around the fulcrum axis along the vertical direction by the bending roller, there is a problem that a large work space is required in plan view. It has the advantage of stabilizing the bending posture compared to a device that bends into a straight line.
However, in order to bend a plurality of reinforcing bars at the same time, a large amount of labor is required. There is a problem that they must be piled up and require more labor.
Therefore, a conveyor device is provided for arranging a plurality of reinforcing bars in the radial direction and conveying them horizontally, and a reinforcing bar supply device is provided for rolling down the plurality of reinforcing bars from the conveyor device between the fulcrum shaft and the bending roller. However, when a plurality of reinforcing bars are rolled down by the reinforcing bar supply device and supplied between the fulcrum shaft and the bending roller, the reinforcing bars may fall off or the respective reinforcing bars may be displaced in the longitudinal direction. Therefore, it is difficult to align the tip positions of the reinforcing bars, and if there are ribs along the longitudinal direction on the peripheral surface of the reinforcing bars, it is very difficult to supply the ribs so that the directions are aligned. there was a point

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to solve the above problems and to efficiently bend a plurality of reinforcing bars with less labor.

A first characteristic configuration of the present invention is that a fulcrum shaft extending in the vertical direction and a bending roller rotatable around the fulcrum shaft are arranged in a lateral direction orthogonal to the axis of the fulcrum shaft. A reaction force receiving part is provided which is attached to a bending base having a support surface along which the reinforcing bar is bent and which receives a bending reaction force acting on the reinforcing bar due to the rotating operation of the bending roller for bending the reinforcing bar. A reinforcing bar bending apparatus provided with a reinforcing bar bending machine that bends a plurality of reinforcing bars in a plane along the support surface of the bending base perpendicular to the fulcrum axis. In the above, a conveyor device is provided for arranging the reinforcing bars in parallel with each other in the radial direction and transporting them in a direction approaching the fulcrum axis without rolling them, and the conveyor device is provided with ribs along the longitudinal direction at the circumference of the conveying reinforcing bars. A rib aligning device capable of aligning and conveying is provided, a clamping member is provided for receiving and clamping a predetermined number of the plurality of reinforcing bars transferred by the conveyor device in the direction of transfer, and the direction of transfer is provided by the clamp member. A clamping member posture changing mechanism is provided for changing the posture of a plurality of reinforcing bars in a first clamping posture, which are arranged and clamped in the first clamping posture, to a second clamping posture in which the plurality of reinforcing bars are vertically stacked and vertically stacked, and the clamp in the second clamping posture is provided. A clamping member moving mechanism is provided for moving a member to directly supply the clamped plurality of reinforcing bars from the clamping member to between the fulcrum shaft of the reinforcing bar bending machine and the bending roller, wherein the clamping member moves the fulcrum shaft. and the bending roller, the reaction force receiving portion is provided with a receiving and clamping mechanism for receiving and clamping a plurality of reinforcing bars stacked vertically.

According to the first characteristic configuration of the present invention, a plurality of reinforcing bars in the first clamping posture, which are arranged and clamped in the transfer direction by the clamp member, are raised vertically by the clamp member posture change mechanism and stacked vertically. The clamping member moving mechanism is used to directly feed between the fulcrum shaft and the bending roller, and a plurality of reinforcing bars are vertically stacked to receive the reaction force. By being received and clamped by a receiving clamping mechanism provided in the part, a plurality of reinforcing bars can be fed and bent between the fulcrum shaft and the bending rollers without requiring human effort.
In addition, by a conveyor device, in a plane along the support surface of the bending base perpendicular to the fulcrum axis, the reinforcing bars are arranged in parallel with each other in the radial direction and transferred in a direction approaching the fulcrum axis without rolling. A plurality of reinforcing bars can be supplied to the reinforcing bar bending machine in a state where the end portions of the reinforcing bars are aligned by the clamping member that receives and clamps the plurality of reinforcing bars in the direction of transfer, and the multiple reinforcing bars are clamped before being clamped by the clamping members. If the directions of the ribs provided on the circumference are aligned during transportation, the ribs can be bent in the same direction when the steel is fed between the fulcrum shaft and the bending roller in the reinforcing bar bending machine. , can provide rebar bending products with uniform shapes and dimensions with high accuracy.
In addition, a plurality of reinforcing bars can be clamped between the clamping members with the ribs oriented in the same direction with little effort, so that bending can be performed with high accuracy.

A second characteristic configuration of the present invention is that a pair of the fulcrum shafts are provided in the radial direction across the reinforcing bar clamped by the receiving clamping mechanism.

1 is an overall plan view of a reinforcing bar bending device; FIG. 1 is an overall perspective view of a reinforcing bar bending device; FIG. It is a principal part perspective view of a reinforcing-bar bending apparatus. It is a perspective view of a stopper device. Fig. 2 is a perspective view of a rib aligner; FIG. 4 is an overall perspective view of a clamp member posture changing mechanism and a clamp member moving mechanism; It is a perspective view of a clamp member posture change mechanism. It is explanatory drawing which shows the relationship between a clamp member and a rib alignment apparatus. FIG. 11 is an operation explanatory drawing of the clamp member posture changing mechanism and the clamp member moving mechanism, in which (a) shows a state in which a reinforcing bar is conveyed to the clamp member, (b) shows a state in which the reinforcing bar is clamped by the clamp member, and (c) The clamped rebar is shown with changed posture. In the operation explanatory diagram of the clamp member posture changing mechanism and the clamp member moving mechanism, (d) shows the state of moving the clamped rebar to the rebar bending machine, (e) shows the state of transferring the rebar to the receiving and clamping mechanism, (f) shows the process of retracting the clamp member from the receiving clamping mechanism.

An embodiment of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 to 3, a fulcrum shaft 1 extending in the vertical direction and a bending roller 2 rotatable about the fulcrum shaft 1 are arranged in a lateral direction perpendicular to the axis of the fulcrum shaft. The reinforcing bar 5 is provided with a reaction force receiving portion 7 which is attached to a bending base 3 having a supporting surface along a direction and receives a bending reaction force acting on the reinforcing bar by a rotating operation of the bending roller 2 for bending the reinforcing bar 5 . A pair of reinforcing bar bending machines 4 for bending laterally along the surface of the bending base 3 are provided in the longitudinal direction of the reinforcing bars so as to be movable relative to each other on the moving rails 21, and both ends of the reinforcing bars 5 are bent at the same time. In order to convey a plurality of reinforcing bars 5 to a reinforcing bar bending machine 4, a reinforcing bar bending apparatus is configured by providing a conveyor device 6 for arranging a plurality of reinforcing bars 5 in the radial direction and transferring them horizontally. I have

The conveyor device 6 conveys a plurality of reinforcing bars 5 sequentially in their radial direction by means of a plurality of chain-type conveyors 8 arranged side by side, so that each reinforcing bar 5 can be conveyed without rolling.
As shown in FIGS. 6 to 10, a clamp member 9 is provided for receiving and clamping a predetermined number of reinforcing bars 5 among the plurality of reinforcing bars 5 transferred by the conveyor device 6 in the transfer direction. A plurality of reinforcing bars 5 in the first clamping posture, which are arranged in a direction and clamped (Fig. 9 (a) → (b)), are raised in the vertical direction and stacked vertically to change the posture to the second clamping posture (Fig. 9(b)→(c)) A clamp member moving mechanism 11 is provided with a clamp member posture changing mechanism 10 to supply the clamp member 9 in the second clamping posture between the fulcrum shaft 1 of the reinforcing bar bending machine 4 and the bending roller 2. is provided, and a plurality of reinforcing bars 5 supplied between the fulcrum shaft 1 and the bending roller 2 by the clamp member 9 (Fig. 10 (d) → (e)) are received and clamped in a vertically stacked state. A receiving and clamping mechanism 12 is provided in the reaction force receiving portion 7 .

As shown in FIGS. 6 to 10, the clamp member 9 is provided with a pair of clamping portions 13 capable of clamping the reinforcing bar 5 by means of the first fluid pressure cylinder S1, and is attached to the first support frame 14 so as to be vertically swingable. A plurality of reinforcing bars 5 in the first clamping posture, which are horizontally arranged and clamped by the clamp member 9, are clamped by the second fluid pressure cylinder S2 provided between the clamp member 9 and the first support frame 14 (FIGS. 6 to 8). , FIGS. 9(a) and 9(b)), change the posture to the second clamping posture in which the members are raised vertically and stacked vertically (FIGS. 9(c) to 10(f)) Change of clamp member posture A mechanism 10 is constructed.

A second support frame 15 is provided to which the first support frame 14 is vertically slidably mounted, and a third fluid pressure cylinder S3 is mounted across the first support frame 14 and the second support frame 15 so that the clamp member 9 is moved to the conveyor. A plurality of reinforcing bars 5 are positioned at the first height position on the transport path of the reinforcing bars 5 by the device 6 (FIGS. 9A and 9B), and a predetermined number of reinforcing bars 5 are received by the clamp member 9. After clamping, the third fluid pressure cylinder S3 is placed at a position higher than the fulcrum shaft 1, the bending roller 2 and the reaction force receiving portion 7 so as to supply and convey between the fulcrum shaft 1 and the bending roller 2 of the reinforcing bar bending machine 4. (FIGS. 9(c) to 10(d)) by the lifting driving force of , and can move up and down to a second height position to overcome them.

Further, in order to move the clamp member 9 from the conveyer device 6 to the reinforcing bar bending machine 4, the third support frame 16 is provided to support the second support frame 15 so as to be movable in the lateral direction, thereby forming the second clamping posture. A clamp member moving mechanism 11 is configured to supply the clamp member 9 between the fulcrum shaft 1 of the reinforcing bar bending machine 4 and the bending roller 2 .

As shown in FIGS. 3 and 10, a receiving and clamping mechanism 12 receives and clamps a plurality of rebars 5 supplied between the fulcrum shaft 1 and the bending roller 2 by the clamping member 9 in a vertically stacked state. is provided in the reaction force receiving portion 7 and arranged on the lateral side of the bending base 3 (FIGS. 10(d) to (f)).

In the conveyor device 6, as shown in FIGS. 5 and 8, the reinforcing bars 5 are placed between a pair of left and right rollers 17 between a plurality of chain-type conveyors 8 arranged side by side so that the orientation of the reinforcing bars 5 in the circumferential direction can be easily adjusted. A rib aligning device 18 is provided so that the direction of the ribs along the longitudinal direction of the conveying reinforcing bar 5 can be aligned along the circumference of the conveying reinforcing bar 5 and can be conveyed.
A rib aligning device 18 consisting of a pair of rollers 17 vertically traverses the conveying path of the reinforcing bars 5 conveyed by the conveying apparatus 6 to receive and support the reinforcing bars 5 conveyed by the conveying apparatus 6 during conveyance. It is configured to be able to move up and down so as to interrupt the transfer of the reinforcing bars 5 on the way.
4 shows the stopper device 19, which is provided with an abutting plate portion 20 for aligning the ends of the reinforcing bars 5. As shown in FIG.

REFERENCE SIGNS LIST 1 fulcrum shaft 2 bending roller 3 bending base 4 reinforcing bar bending machine 6 conveyor device 7 reaction force receiving portion 9 clamping member 10 clamping member posture changing mechanism 11 clamping member moving mechanism 12 receiving clamping mechanism 18 rib aligning device

Claims (2)

a fulcrum axis of the axis along the vertical direction;
A bending roller rotatably operable about the fulcrum shaft is attached to a bending base having a support surface along a lateral direction perpendicular to the axis of the fulcrum shaft, and the bending roller bends the reinforcing bar. A reinforcing bar bending apparatus provided with a reinforcing bar bending machine that is provided with a reaction force receiving portion that receives a bending reaction force acting on a reinforcing bar by a rotating operation, and bends the reinforcing bar in a plane along the supporting surface of the bending base. and
A plurality of reinforcing bars are arranged radially side by side in a plane along the supporting surface of the bending base perpendicular to the fulcrum axis, and the reinforcing bars are transferred in a direction approaching the fulcrum axis without rolling . Provide a conveyor device,
The conveyor device is provided with a rib aligning device capable of aligning the direction of the rib along the longitudinal direction at the periphery of the conveying reinforcing bar and conveying it,
A clamp member is provided for receiving and clamping a predetermined number of reinforcing bars among the plurality of reinforcing bars transferred by the conveyor device,
A clamp member posture change mechanism is provided for changing the posture of a plurality of reinforcing bars in a first clamping posture, which are arranged and clamped in the transfer direction by the clamp member, to a second clamping posture in which the reinforcing bars are vertically raised and vertically stacked. ,
a clamping member moving mechanism for moving the clamping member in the second clamping posture to directly supply the clamped plurality of reinforcing bars from the clamping member to between the fulcrum shaft of the reinforcing bar bending machine and the bending roller;
The reaction force receiving portion is provided with a receiving and clamping mechanism for receiving and clamping a plurality of reinforcing bars supplied between the fulcrum shaft and the bending roller by the clamp member in a vertically stacked state. Bending equipment. 2. The reinforcing bar bending apparatus according to claim 1, wherein a pair of said fulcrum shafts are provided in said radial direction across the reinforcing bar clamped by said receiving clamping mechanism.

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