JPH0350688B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reinforcing bar assembly device, and more particularly to a reinforcing bar assembling device for setting reinforcing bars for concrete structures, particularly concrete plates, at desired intervals within formwork. be.

Conventionally, reinforcing bars 1 used for lightweight concrete plates such as aerated concrete are made by combining horizontal bars 2 and vertical bars 3 into a planar assembly, which is assembled into a three-dimensional structure via spacers 4, as shown in FIG. 1, for example. It is a combination of To set such reinforcing bars 1 at a predetermined position within a concrete formwork, the reinforcing bars 1 are engaged with a setting jig and suspended, moved to the predetermined position, and then engaged with the setting jig. However, in the past, most of these tasks relied on human labor, which took a long time and was not favorable from a safety standpoint. Since the process is complex, it requires a large amount of equipment costs and has the disadvantage of causing many troubles during operation. In addition, in order to engage the reinforcing bars with the setting jig, a conventional method has been used in which a setting rod is inserted vertically into the hole of the reinforcing bar spacer and locked (Japanese Patent Laid-Open No. 56
This method has the disadvantage that it is difficult to position the setting rod at an accurate position, and therefore lacks reliability, and the apparatus becomes complicated even when automated.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the drawbacks of the reinforcing bar assembly method as described above, and to provide a highly reliable reinforcing bar assembly apparatus that can be automated using relatively simple equipment.

The present invention provides a reinforcing bar setting jig in which setting bars having hook-shaped parts for hanging reinforcing bars at the lower end are arranged at predetermined intervals, an assembly arm having a clamp device for gripping the setting jig, and The present invention is characterized in that it includes an elevating device for the assembly arm, and an engaging device for engaging the hook-shaped portion of the set rod with the reinforcing bar.

In the present invention, the engaging device rotates the setting rod engaged with the setting jig by 90 degrees, and engages the hook-shaped portion of the setting rod with a hole provided in a spacer of the reinforcing bar. There are things. That is, FIG. 2 is a perspective view showing an example of a setting jig used in the present invention. This jig consists of a support frame 5, setting rods 6 supported by the support frame 5 and arranged vertically at predetermined intervals, and a hook-shaped portion 7 at the lower end of the setting rod 6, as shown in FIG. It has a set rod rotating means 9 for inserting it into the hole 8 of the reinforcing bar spacer 4 and further rotating it by 90 degrees to engage the spacer 4. In addition, the setting jig as used in the present invention is
As described above, the setting rods 6 engage with the spacers 4 to keep the reinforcing bars at predetermined intervals and hang the reinforcing bars 1, and the supporting frame 5 arranges and fixes the setting bars at regular intervals. It refers to something that is integrated.

As shown in FIG. 5, the setting jig 10 is supplied directly below the assembly arm 20 (indicated by a broken line) from a setting jig stocking area (not shown) by a setting jig supplying device 11. That is, this setting jig supply device 11 includes a cart 12 that slides in the horizontal direction, and a cylinder device 13 whose one end is fixed on the cart.
The setting jig 10 is placed on the trolley 12 and pushed out in the direction B by the cylinder device 13, so that it is placed directly below the assembly arm 20.

As shown in FIG. 6, the assembly arm 20 includes a pair of clamps 15 supported on the lower side of the frame 14.
, a cylinder device 17 connected to its upper end via a rod 16, and a drive device 18 for rotating means 9 (FIG. 2) of the setting rod 6 of the setting jig held by the clamp 15. The upper side of the frame body 14 is connected to a lifting device 19 (hydraulic cylinder device) fixed to a frame or the like. Pin 1 on frame 14
As shown in FIG. 7, the clamp 15 supported via the groove 23A is
The top can be slid back and forth (in the direction of arrow A).

The setting jig 10 is lowered to a predetermined position of the reinforcing bars on the reinforcing bar arrangement cart 21 below by the operation of the cylinder device 19.
is divided into a plurality of sections by a guide plate 22 having an acute angle at the tip, and has a rack 33 on its lower side, and this rack 33 has a moving positioning device (pinion gear) 24, slides on the rail 25, and can be stopped at a predetermined position. The set bar rotating means 18 (FIG. 6) has a cylinder device 26, as shown in detail in FIGS. 8 and 9, and the cylinder device 26 is connected to a rotating bar 27 via a head 26A. When this is rotated around the shaft 27A, the setting rod 6 is rotated through 90 degrees via a rod 28 and a pin 29 fixed to the bar 27.

As shown in FIGS. 3A and 3B, the setting rod 6 has a shape in which the base material of the cross-sectional shape is cut in the middle and at the lower end so that the facing faces have a constant thickness. The set rod can be fitted to the The spacer 4 has one side thereof,
That is, it has a tapered notch 30 on the side into which the setting rod 4 is inserted, and has a hole 8 in the center thereof large enough to allow the setting rod to rotate, and the tapered portion 30 and the hole 8 is thicker than the thickness between the cutting surfaces of the set rod and connected by a groove having a width slightly (1 to 2 m/m) narrower than the diameter of the set rod base material.

Next, the operation and effects of the above device will be explained in more detail.

First, in FIG. 5, a setting jig 10 with setting rods 6 mounted in advance at positions corresponding to the type and number of reinforcing bars is located at a setting jig stock station (not shown).
It is placed on the carriage 12 of the setting jig supply device 11, and is pushed out in the direction of the assembly arm 20 (arrow B) by the operation of the cylinder device 13. When the setting jig 10 is pushed out to the position shown by the chain line in FIG. 5, the cylinder device 17 of the assembly arm 20 is actuated to grip the side surface of the setting jig 10 with the clamp 15, as shown in FIG. Next, assembly arm 2
It is raised by the operation of the lifting device 19 on the upper part of 0 and stopped at a predetermined position. Here, the setting jig supply device 11 from which the setting jig 10 is removed (FIG. 5)
operates the cylinder device 13 in the opposite direction and is returned to its original position.

Before or during gripping and lifting/lowering of the setting jig 10, a guide plate 22 is placed on the reinforcing bar arrangement cart 21 as shown in FIGS. 6 and 7.
The reinforcing bars 1 are arranged and maintained at regular intervals through the reinforcement bars 1. The cart 21 with reinforcing bars arranged in this way is driven by engaging the pinion gear (movement positioning device) 24 provided at the entrance of the assembly device and the rack 33 of the cart 21, and is driven by an operation signal from a control device (not shown). , the trolley 21 moves to the reference position and stops. This stopped state is shown in FIGS. 6 and 7. At the same time as the truck 21 stops, the cylinder 19 is operated as described above to lower the setting jig 10 to the engagement position with the reinforcing bar spacer 4 (FIG. 3). The state at this time is shown in FIGS. 10A and 10B.
A gap of about 1 to 2 mm is maintained between the cylinder 23 and the setting jig receiving part 32 of the truck, and as described later,
This allows the clamp device 15 to move in the front-back direction (arrow A). In the lowered position of the arm 20, the setting rod 6 and the spacer 4 are arranged at a constant distance from each other, as shown in FIG. are in a parallel state.

When the lowering operation of the setting jig 10 is completed,
Next, the clamp 15 is moved horizontally or in the front-rear direction (direction of arrow A) by the operation of the cylinder 23 (Fig. 7), and the spacer hole 8 is moved using the tapered part 30 of the spacer 4 as a guide, as shown in Fig. 3 (b). The setting rod 6 is inserted into the spacer 4 until the center position of the setting rod 6 matches the center position of the setting rod 6.
After the insertion operation is completed, the set rod rotating cylinder 26 shown in FIG. 8 is operated to rotate the rotating head 26.
By pushing out A in the direction of arrow C, the rotation bar 27 provided on the setting jig 10 is rotated 90 degrees, and the rod 28 connected to the rotation bar 27 is rotated.
The setting rod 6 is rotated through 90 degrees, and the setting rod 6 and the spacer 4 are engaged and integrated.

When the engagement operation between the setting rod 6 and the spacer 4 is completed, the clamp 15 is released from the clamp 15 by the operation of the cylinder 17 of the assembly arm 20, and the setting jig 10 is moved onto the setting jig receiving portion 32 of the trolley 21. It will be posted. After the above transfer is completed, the assembly arm 20
is raised by the operation of the cylinder 19, stops at a predetermined position, and waits until it receives the setting jig 10 again from the setting jig supply device 11, as shown in FIG. Also, at the same time as the assembly arm 20 rises and stops, the pinion gear 24
In response to a command from the control device, the trolley 21 is moved by a predetermined pitch and stopped at the next spacer position. When the truck 21 is stopped at the fixed position and the setting jig 10 is completely supplied to the setting jig supplying device 11, the operation for engaging the series of spacers and the setting rod as described above is restarted. When the engagement operation is completed for the setting jig mounted on each truck, the truck 21 is carried out, a new truck is brought in, and the above operation is repeated.

In the above embodiment, the setting jig 10 is held by gripping the side surface of the setting jig 10 by operating the cylinder device 17, but this may also be done by using an attraction means such as a magnet. In addition to the cylinder 19 used in this embodiment, the assembly arm 20 may be moved up and down by a drive device including a combination of a forward/reverse motor, a rack and a pinion, or a chain. In addition to the combination of the rack 33 at the bottom of the cart and the pinio gear 24 as in this embodiment, the positioning of the cart 21 is achieved by fixing the cart 21 to the tip of a screw shaft rotated by a drive device. The assembly arm 21 may be moved back and forth at a low pitch, or the carriage 21 may be fixed and the assembly arm 20 itself may be moved. In addition, as long as the object of the present invention is achieved, the elements of the above embodiments may be converted into equivalent means, or various modifications may be made thereto.

According to the present invention, when the set rod is engaged with the spacer, by providing a notch on one side of the spacer and making the notch tapered, the spacer itself has a guiding function, and therefore, it is possible to There is no need to fit the set rod into the spacer hole from any direction, or to install a special guide device on the device, or to change the design of the guide device depending on the width of the reinforcing bars. Since the spacer is inserted from the lateral direction, the insertion operation is easy and the setting rod can be reliably engaged with the reinforcing bar. In addition, since the setting jig is assembled with reinforcing bars one frame at a time, the equipment can be kept small, and even if there is a design change such as the setting jig installation interval, it is only necessary to change the amount of movement of the trolley. It has a wide range, is easy to operate, and can more reliably assemble reinforcing bars.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a conventional reinforcing bar (assembled body), FIG. 2 is a perspective view showing an embodiment of a setting jig used in the present invention, and FIG. Explanatory drawings showing the state in which the setting rod is engaged with the hole of the reinforcing bar spacer, Figures 4A and 4B are as follows:
FIG. 5 is a plan sectional view of the upper and lower spacer portions in the state shown in FIG. 7 is a front view and a side view thereof showing a state where the setting jig is gripped by the assembly arm of the present invention and stopped above the reinforcing bar arrangement cart, and FIG.
Plan view of the set rod rotating device used in the present invention, No. 9
The figure is a front view thereof, FIG. 10(a) is a front view showing a state in which the setting jig is engaged with the reinforcing bars of the reinforcing bar arrangement cart, and FIG. 10(b) is a side view thereof. The explanation of the symbols is as follows. DESCRIPTION OF SYMBOLS 1... Reinforcement bar (assembly body), 4... Spacer, 6... Setting rod, 7... Hook-shaped part, 8... Hole part, 9... Setting rod rotation means, 10... Setting jig, DESCRIPTION OF SYMBOLS 11... Setting jig supply device, 15... Clamp, 17... Cylinder device, 19... Lifting device, 20... Assembly arm, 21... Reinforcement bar arrangement trolley.

Claims (1)

[Scope of Claims] 1. An assembly arm having a reinforcing bar setting jig in which setting bars having hook-shaped parts for hanging reinforcing bars are arranged at predetermined intervals at the lower end, and a clamping device for gripping the setting jig. and a lifting device for the assembly arm;
A reinforcing bar assembly device comprising: an engagement device for engaging a hook-shaped portion of the set rod with a reinforcing bar. 2. In claim 1, the engagement device moves the assembly arm horizontally to insert the hook-shaped portion of the set rod into a hole provided in the reinforcing bar spacer, and further A reinforcing bar assembly device, characterized in that the reinforcing bar is rotated by 90 degrees to engage with a reinforcing bar spacer.