JP2909648B2 - Stirrup muscle arrangement device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a main reinforcing bar arranged in a longitudinal direction and a belly reinforcing bar (stirrup), which surrounds the main reinforcing bar and is attached at an angle close to a right angle. The present invention relates to a bar arrangement device used for pre-assembly of a reinforcing bar cage made of lap bars. More particularly, the present invention relates to a stirrup rebar arrangement device that efficiently arranges a stirrup bar with respect to a main rebar at a constant pitch without troublesome labor.

(Conventional technology) In the construction of reinforced concrete structures, especially large reinforced concrete structures, rebars are pre-assembled at the factory in advance, and they are transported to the site and assembled for efficiency and labor saving. In many cases, the so-called rebar pre-assembly method is adopted.

(Problems to be Solved by the Invention) By the way, when a so-called beam reinforcing bar is first assembled by assembling a stirrup reinforcing bar to a main reinforcing bar, it has been conventionally assembled in the following manner.

First, the main reinforcing bar is supported in a longitudinal direction using a gantry or the like, and in a horizontal state. Next, on the main reinforcing bar supported in the horizontal state, the arrangement position of the stirrup bars is marked at a predetermined pitch. At the end of the marking work, a bundle of stirrup bars is inserted from the end of the main reinforcing bar, and the stirrup bars arranged at the marking position of the main reinforcing bar are manually arranged one by one from the bundle. They were tied in a state perpendicular to the main rebar and pre-assembled the entire beam rebar.

However, the above-mentioned marking work and the work of arranging stirrup streaks to the marking position are a large amount of work, and have been a bottleneck in the rebar pre-assembly work. In particular, with the trend of reinforced concrete structures becoming larger and the spread of pre-assembly methods, the efficiency and labor saving of assembling work have become major issues in construction work.

SUMMARY OF THE INVENTION An object of the present invention is to provide a device for efficiently performing stirrup rebar arrangement work without bothering the user to solve such a problem.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a traveling vehicle, a horizontal gantry for horizontally supporting a plurality of stirrup streaks, and a running gantry for stirrups supported on the horizontal gantry. A feed gantry for arranging reinforcing bars at a predetermined pitch one by one while running a trolley is configured as follows, and is combined to provide a mechanical stirrup reinforcing device.

First, the traveling vehicle was a traveling vehicle in which the lower surface of the main reinforcing bar arranged in the longitudinal horizontal direction was moved in parallel along the main reinforcing bar, and was equipped with a control device so that its traveling speed and traveling distance could be set to predetermined values. .

Next, the horizontal gantry is erected on a trolley located on both the left and right sides with respect to the traveling direction of the traveling trolley. Teeth were formed.

Further, the feed gantry has a sawtooth feed dog of the same shape parallel to the sawtooth receiving teeth provided on the upper surface of the horizontal gantry on the upper surface, and a crankshaft, a crank, a crankpin inside the horizontal gantry. And held horizontally via a parallel crank mechanism consisting of By rotating the crankshaft in the parallel crank mechanism, the feed gantry is configured to perform parallel crank motion by being shifted from the receiving tooth of the horizontal gantry by one tooth of the feed dog in the feed gantry. is there.

(Operation) Since the stirrup stirrup bar arrangement device according to the present invention is configured as described above, when the stirrup stirrup bar arrangement work is specifically performed, it is operated in the following manner.

First, using a serrated receiving tooth of a horizontal gantry installed on a traveling vehicle, a plurality of stirrup streaks to be arranged on the receiving tooth are supported in a horizontal state.

At this time, the feed teeth of the feed gantry and the receiving teeth of the horizontal gantry should be in a state in which both tooth shapes match. That is, the stirrup streak is supported by the receiving teeth of the horizontal gantry and the feed teeth of the feed gantry.

Next, in a state where the stirrup is supported, the traveling bogie is guided from the end of the main reinforcing bar arranged in the longitudinal horizontal direction.
In that case, the stirrup bars supported by the horizontal gantry and the feed gantry are guided so as to straddle the main rebar.

Then, the traveling carriage is moved along the main rebar, and the feed gantry having the feed dog is operated by rotating the crankshaft of the parallel crank mechanism. That is, a parallel crank motion is given to the feed frame. As a result, the feed gantry operates by taking a so-called parallelogram trajectory that is once lifted upward, moves horizontally, descends at the rear end, advances horizontally, and returns to the original position.

Therefore, the stirrup streaks supported by the receiving teeth of the horizontal gantry and the feed teeth of the feed gantry are first supported by the feed gantry and horizontally moved rearward by the crank motion of the feed gantry.

As described above, the feed cradle is set so that it is shifted by one tooth of the feed dog and moves to the rear of the horizontal cradle. One of the lap streaks will be placed on the main rebar. This is because the stirrup bars are mounted on a horizontal gantry or a feed gantry so as to straddle the main reinforcing bar in advance.

Moreover, since the parallel crank motion of the feed gantry and the movement of the traveling trolley are performed in parallel, if the moving speed of the traveling trolley and the crank motion of the feed gantry, that is, the rotation speed of the crankshaft, are set to predetermined speeds in advance. The stirrup bars supported on the horizontal gantry can be arranged on the main rebar at a constant pitch.

(Example) The structure and operation of a bar arrangement device according to the present invention will be specifically described based on an example shown in the drawings.

FIG. 1 is a side view of the apparatus, FIG. 2 is a vertical sectional front view taken along line YY of FIG. 1, and FIG. 3 is a plan view.

First, the traveling carriage 1 is constituted by a four-wheeled vehicle having wheels on the front, rear, left and right. Although not shown in the drawing, the traveling carriage 1 is constituted by a self-propelled type driven by a motor drive. It is configured to be able to. That is, it is equipped with a servo motor equipped with a rotation speed control device consisting of a rotary encoder, its speed and moving distance are appropriately set, and it is configured as a bogie that can travel and move in parallel along the main reinforcing bar arranged in the horizontal direction. It is.

Next, the horizontal gantry 2 has uprights 3 (3) erected on both left and right sides of a front end (left side in FIG. 1) of the traveling vehicle 1 in the traveling direction.
A horizontal base plate 4 (4) is attached to the upper part of the support 3 (3) to form an inverted L-shape. On the upper surface of the horizontal base plate 4 (4), serrated receiving teeth 5 (5) are respectively provided. The structure is formed. The receiving teeth 5 (5) support the stirrup streaks to be arranged. In FIG. 1, A shown by a dashed line is a so-called main reinforcing bar, and B is a stirrup bar. Incidentally, the horizontal frame 2 shown in FIG. 1 is a horizontal frame 2 for supporting seven stirrup streaks B at the same time, but the number is not limited to this.

Next, as shown in FIG.
A movable base plate 7 (7) disposed in parallel along the inner sides of the left and right horizontal mounts 4 (4), and a parallel crank mechanism for imparting a parallel crank motion to the movable base plate 7 (7). I have.

First, the movable base plate 7 (7) is provided with a feed dog 8 having the same shape as the serrated receiving teeth 5 (5) provided on the upper surface of the horizontal mount 4 (4).
(8) is formed on the upper surface. Then this feed dog 8
The parallel crank mechanism for imparting parallel crank motion to the movable base plate 7 (7) having (8) is configured as follows. That is, as shown in FIG. 1, the crankshafts 9 and 9 are disposed
As shown in FIG. 2, which is a vertical sectional front view taken along the line YY of FIG. 1, cranks 10 and 10 are attached to both ends of the cranks 10 and 10, respectively.
11 is connected to the movable base plate 7 (7), and the crankshafts 9 and 9 are driven to rotate.
(7) is configured to perform a so-called parallel crank motion. In the embodiment, the cranks 9 and 9 are disk-shaped cranks. Reference numeral 17 shown in FIG. 2 denotes a drive chain wheel for chain-driving the crankshaft 9 (9) described below. In the embodiment, as shown in FIG. 2, the crankshaft 9 (9) has columns 13 and 13 on the left and right on a bottom plate 12 provided between the left and right horizontal base plates 4 and 4 in the horizontal gantry 2. It is erected and is pivotally supported at the upper ends of the columns 13 and 13. Then, the cranks 10 and 10 are attached to the left and right ends of the crankshaft 9 that is supported as described above, and the cranks 10 and 10 are connected to the movable base plates 7 and 7 via the crank pins 11 and 11, respectively. Is configured as a so-called parallel crank mechanism.

As means for rotating the crankshafts 9 and 9, that is, means for rotating the parallel crank mechanism by the chain drive method as described above, a drive motor 14 is driven to the crankshaft 9 as shown in the plan view of FIG. The chain 15 is used to link and drive. Reference numeral 16 denotes a drive chain that links the entire (left side in the figure) drive shaft 9 and the rear drive shaft 9.

Since the bar arrangement device according to the present invention is configured as described above through the embodiments, as shown in FIGS. 1 and 2, the stirrup bar B is placed on the horizontal stand 2 and the feed stand 6. To support. At this time, the main reinforcing bar A arranged in the horizontal longitudinal direction is supported by the stirrup bar B in a state of straddling the stirrup bar B (see FIG. 2).
(Right side in FIG. 1).

Then, the traveling vehicle 1 is moved at a traveling speed and traveling distance set in advance. At the same time, the movable base plate 7 (7) of the feed base 6 is caused to make a parallel crank motion by the drive motor 14. Then, the stirrup bars B supported by the horizontal gantry 2 and the feed gantry 6 are fed one by one to the rear side (the right side in FIG. 1), and are arranged on the main reinforcing bar A at a constant pitch. Will be.

FIGS. 4 (1) to (8) are operation diagrams showing a feed operation of the stirrup streaks B by a parallel crank motion of the movable base plate 7 in the feed base 6.

FIG. 4 (1) shows the stirrup streaks B supported with the serrated receiving teeth 5 of the horizontal base plate 4 of the horizontal gantry 2 and the serrated receiving teeth 8 of the feed gantry 2 aligned. It is a side view showing the state where it fell. (2) is a side view showing a state where the movable base plate 7 is supported in a horizontal state by giving a parallel crank motion to the movable base plate 7. (3)
In (4) and (4), the movable base plate 7 further moves rearward due to the crank motion. In (5), one tooth of the serrated receiving teeth 8 on the movable base plate 7 is replaced with the receiving teeth 5 on the horizontal gantry 2. It is a side view showing the state where it was sent to the position shifted back by one tooth. (6) shows a state in which the movable base plate 7, which has been supported upward in a horizontal state, has begun to move to a descending stroke in a parallel crank motion. (Left side) shows the horizontal movement process. Then, the movable base plate 7 returns to the state (1), and repeats the parallel crank movement in the cycles (1) to (8).

As a result, the stirrup bars B supported by the horizontal gantry 2 and the feed gantry 6 are fed at a constant pitch onto the main reinforcing bar A by the parallel crank motion of the feed gantry 6.

In addition, since the traveling speed of the traveling vehicle 1 and the traveling distance are set in advance by a rotation speed control device including a rotary encoder incorporated in the traveling vehicle 1, the stirrup muscle B
Are arranged on the main rebar A at a constant pitch, and when the arrangement is finished, the running is stopped.

(Effect of the Invention) As described above, the stirrup rebar arrangement device according to the present invention simply supports the stirrup streak on the horizontal gantry and the feed gantry on the traveling trolley and moves the traveling trolley. Since the stirrup bars can be arranged on the main rebar at a constant pitch, the following effects can be obtained as compared with the conventional bar arrangement method.

(1) Since labor is less required, labor saving effects can be obtained. Since so-called rebar arrangement by a machine is used, the work is efficient, and in combination with the labor saving effect, the efficiency of the rebar pre-assembly work and the cost reduction of the pre-assembly work can be reduced.

(2) Since the rebar arrangement work is performed by a machine, the arrangement pitch of the rebar arrangement can be freely selected, and furthermore, the rebar arrangement work is not required and the rebar arrangement work is remarkably shortened. In particular, the fact that labor can be omitted and the worker can be freed from troublesome work is a great advantage in the rebar pre-assembly work.

[Brief description of the drawings]

The drawings show an embodiment of a stirrup muscle arrangement device according to the present invention. FIG. 1 is a side view showing a mechanism of the arrangement device, and FIG. 2 is a front view taken along the line YY of FIG. FIG. 3 is a plan view, and FIGS. 4 (1) to (8) are operation diagrams of a feed stand showing a stirrup streak feeding operation. A: Main reinforcing bar, B: Stirrup bar 1: Traveling trolley, 2: Horizontal gantry, 3: Support column 4: Horizontal pedestal plate, 5: Serrated receiving teeth 6: Feed gantry, 7 …… Movable base plate 8… Saw tooth feed dog, 9 …… Crank shaft 10 …… Crank, 11 …… Crank pin, 12 …… Bottom plate 13 …… Prop, 14 …… Drive motor 15 …… Drive chain, 16… Drive chain 17 …… Drive chain wheel

Claims (1)

(57) [Claims] 1. A traveling trolley having a traveling trolley, a horizontal pedestal, and a feed gantry, wherein the traveling trolley translates a lower surface of a main reinforcing bar arranged in a longitudinal horizontal direction along a main reinforcing bar. And a control device capable of setting a traveling speed and a traveling distance to a predetermined value. The horizontal gantry is erected on trolleys located on both left and right sides with respect to the traveling direction of the traveling trolley. The feed cradle has a saw-tooth feed tooth of the same shape parallel to the saw-tooth tooth of the horizontal gantry on the upper surface. In addition, when the crankshaft in this parallel crank mechanism is rotated horizontally by a parallel crank mechanism including a crankshaft, a crank, and a crankpin inside the horizontal mount, Reinforcement device stirrup muscle, characterized in that set to the parallel crank motion deviates only from receiving the teeth of the horizontal frame one tooth of the tooth feed.