JP2755088B2 - Transfer method and transfer device for reinforced mat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for automatically transferring and stacking reinforced mats used in the production of lightweight cellular concrete panels. It concerns the device.

[0002]

2. Description of the Related Art When manufacturing lightweight cellular concrete panels, reinforced mats are embedded in the panels to increase the strength. This reinforced mat is usually 2
It is manufactured by connecting a pair of parallel reinforcing steel nets, assembling them in a cage shape, and welding. The width, thickness, and length of the reinforced mat are determined according to the dimensions of the panel to be manufactured. The panel is manufactured by welding using an automatic welding machine to a size corresponding to the size of the panel, and is sequentially placed one by one horizontally and transported. In order to use this reinforced mat in the next process,
Once stacked, they are transported to a desired location.

[0003]

However, it is difficult to automate the transfer of the reinforced mat if the dimensions thereof are different. Therefore, conventionally, since the operation is manually performed by the worker, not only the man-hour is increased, but also there is a problem in safety and health.

[0004] It is an object of the present invention to provide a method and an apparatus for automatically transferring and stacking rebar mats having different dimensions.

[0005]

Means for Solving the Problems The inventors of the present invention have conducted studies to solve the above-mentioned problems and achieve the object, and as a result, have found a means for detecting the size of a reinforcing bar mat and gripping the reinforcing bar mat. The inventors have found that the object can be achieved by deciding various moving distances so as to be able to operate, and have completed the present invention. That is, in the first embodiment of the present invention, the width, thickness, and length of the rebar mat to be conveyed are simultaneously detected on the conveying means, and the width, thickness, and length of the rebar mat are simultaneously detected.・ Determine the traversing distance, lower the claws to grip the upper rebar, confirm the grip, move to the desired location, lower the desired dimensions, and stack the rebar mats sequentially. Yes,
The second embodiment is directed to an apparatus for gripping an upper rebar of a rebar mat that is conveyed horizontally, transferring the rebar to a desired location, and stacking the rebar mat. The width of the reinforced mat provided in the
A size detection mechanism for detecting a height and a length, a plurality of claws provided on the mechanism, each of which can be opened, are arranged in two rows, and a gripping structure having means for adjusting the interval between the rows. And a moving mechanism having means for moving the gripping mechanism up and down by a desired size and means for moving the holding mechanism horizontally by a desired size.

[0006]

[Function] The width, thickness and length of the reinforced mat that has been conveyed are each detected by a detection sensor, and a plurality of openable and closable two-row claws are adjusted according to the detection result of the size of the reinforced mat. Then, the claws can be raised and lowered by a predetermined size, the upper rebar can be gripped, the rebar mat can be moved horizontally by a predetermined size, and the rebar mat can be moved and stacked automatically.

[0007]

Next, an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a front view showing an embodiment of the apparatus of the present invention, FIG. 2 is a plan view of the apparatus of the present invention shown in FIG. 1, and FIG.
FIG. 4 is a side view of the apparatus of the present invention shown in FIG. 1, and FIG. 4 is a front view showing an embodiment of the gripping mechanism in the apparatus of the present invention.

The apparatus according to the present invention comprises a reinforced mat positioning mechanism (A), a reinforced mat size detecting mechanism (B), a reinforced mat holding means (C), and a moving mechanism (D) of the holding mechanism (C). ing.

[0010] The positioning mechanism (A) for the reinforcing bar mat is configured as follows. That is, reference numeral 10 denotes a roller conveyor, in which a number of rollers 7 are arranged as conveying means for receiving the conveyed reinforcing bar mat 11, a stopper 12 is fixed to a front end portion, and the conveyed reinforcing bar mat 11
Is transported on this and is stopped by the stopper 12. 6 is
A mat ruler, which has a plate shape, is provided on one longitudinal side surface (the right side in FIG. 2) of the roller conveyor 10 so as to protrude from the upper surface of the roller conveyor 10 by a cylinder 5 provided at a lower portion, and has a reinforcing bar mat 11. Abut on one side. Reference numeral 9 denotes a mat retainer, which has a plate shape, is provided on the other side of the roller conveyor 10 in opposition to the mat ruler 6, and is horizontally connected to the mat ruler 6 by a cylinder 8 installed on the side. It is attached to the roller conveyer 10 so as to be able to advance and retreat in parallel, and abuts one side surface of the reinforcing bar mat 11. These constitute a reinforced mat positioning mechanism (A). The dimension determining mechanism B of the reinforcing bar mat is configured as follows. That is, reference numeral 14 denotes a sensor, for example, a photoelectric type, and the roller conveyor 10
The height of the reinforcing bar mat 11 is detected when the reinforcing bar mat 11 reaches below the front end. Reference numeral 15 denotes a sensor, for example, an electromagnetic type, which is disposed between the plurality of rollers 7 of the roller conveyor 10 and operates when the reinforcing bar mat 11 is positioned on the roller conveyor 10. Sensor 15
The length of the reinforcing bar mat 11 can be detected based on the position of. Numeral 16 denotes a sensor, which is provided in the cylinder 8 and detects a moving distance of the mat press 9 until the mat press 9 is moved forward and the rebar mat 11 is pinched together with the mat ruler 6 when the mat press 9 is moved forward. By doing so, the width of the reinforcing bar mat 11 can be detected.
These constitute a dimension detection mechanism B of the reinforcing bar mat. The rebar mat gripping mechanism C is configured as follows. That is, reference numeral 23 denotes pawls, each of which can be opened and closed.
Are mounted on a slide guide 27 of a fixed hand 17 fixed to an end of the hand frame 4 and are suspended by a cylinder 22 so as to be able to move up and down. The pawl 23 is axially fixed below the hand frame 4 and slides by the cylinder 22 on a slide guide 27 of the movable hand 18 screwed to a screw shaft 30 rotated forward and reverse by a motor 19 provided on the hand frame 4. Then, the space between the claws 23 facing each other can be adjusted with the rotation of the screw shaft 30. A switch 29 is provided on the claw 23.
Is provided so that it can be detected that the reinforcing bar mat 11 has been gripped. Reference numeral 20 denotes a plurality of sensors which are attached to the hand frame 4 so as to detect the interval between the two rows of claws 23. These constitute a holding mechanism C for the reinforcing bar mat. Further, the moving mechanism D of the gripping mechanism includes a vertically moving means D-1 and a horizontally moving means D-2, and is configured as follows. That is, reference numeral 2 denotes an elevating frame, which has a rectangular frame shape, and one side of the elevating frame 2 is slidably engaged with a pair of elevating rails 33 fixed to a vertically erected frame 32, and The base is disposed in parallel between the elevating rails 33, and is screwed to a screw shaft 35 which is rotated forward and reverse by the motor 21 fixed to the frame 32, and slides on the elevating rail 33 to move up and down by a desired dimension. . The means 3 for raising and lowering by these means is a traversing frame 3 to which a hand frame 4 is attached and which is slidably engaged with a traversing rail 31 fixed to the upper surface of the elevating frame 2 so as to be movable. Have been. 24 is
A traversing motor, which is fixed to the upper surface of the elevating frame 2, and which is rotatable in the forward and reverse directions and is rotatably supported by the traversing motor 24.
1 and reciprocate. These constitute a means D-2 for sliding in the horizontal direction, and constitute a moving mechanism D of the gripping mechanism.

Next, a description will be given of a method of transferring using the apparatus configured as described above.
Is raised to the upper limit, the hand frame 4 is kept above the roller conveyor 10 with the claw 23 of the gripping mechanism C opened, and the mat ruler 6 of the positioning mechanism A is moved by the cylinder 5 The mat presser 9 protrudes above the upper surface of the roller conveyor 10 and is retracted by the cylinder 8.

In this state, the roller conveyor 10 is operated,
When the reinforcing bar mat 11 is conveyed and comes into contact with the stopper 12, the roller conveyor 10 stops, the cylinder 8 operates, and the mat presser 9 is advanced to move the reinforcing bar mat 11 to the mat ruler 6.
And fix it. In this state, the width of the reinforcing bar mat 11 is detected by the sensor 16, the height is detected by the sensor 14, and the length is detected by the sensor 15. Then, the hand frame 4 moves according to the detected width, and the fixed hand 17 moves.
The height of the lifting frame 2 is set according to the detected height, and the claw 23 grips the upper reinforcing bar of the reinforcing bar mat according to the detected length.
Number is determined.

When these settings are completed, the cylinder 8,
5 operates in reverse, the mat presser 9 retreats, and the mat ruler 6
Descends. Then, the elevating motor 21 is operated to rotate the screw shaft 35, whereby the elevating frame 2 slides on the elevating rail 33 and descends by a desired dimension. Next, the cylinder 22 is operated to close the claws and grip the upper reinforcing bar of the reinforcing bar mat 11. At this time, the claw gripping the upper rebar is confirmed by the switch 29. Even if the distance between the fixed hand 17 and the moving hand 18 is inappropriate and the claw 23 hits the rebar mat 11, the claw 23 can slide on the slide guide 27. The device and the reinforced mat 11 are not damaged because they are suspended. Further, when such a situation or a predetermined number of claws 23 are not gripping the reinforcing bar mat 11, an alarm is issued and the operation is stopped.

When it is confirmed that the predetermined claw 23 is gripping the upper rebar, the elevating motor 21 operates again to raise the elevating frame 2 to the upper limit. Next, the traversing motor 2
4, the traversing frame 3 traverses, and the gripped reinforced mat 11 is transferred to a belt conveyor 25 disposed parallel to the roller conveyor 10. At this time, if the reinforcing bar mat 11 is already placed on the belt conveyor 25, the descending distance of the lifting frame 2 is automatically adjusted according to the thickness and the number thereof, and the loaded reinforcing bar mat 1
1 are sequentially loaded. When the transfer is completed, the lifting frame 2 and the traversing frame 3 return to the initial positions, and the next operation is repeated as described above.

[0015]

According to the present invention, since the size of the reinforcing bar mat can be detected and the moving means for gripping the reinforcing bar mat can be determined to operate variously, the reinforcing bar mats having different dimensions are conveyed one after another. Even if it comes, it can be automatically transferred and stacked, and a remarkable effect is recognized.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the device of the present invention.

FIG. 2 is a plan view of the device of the present invention shown in FIG.

FIG. 3 is a side view of the apparatus of the present invention shown in FIG.

FIG. 4 is a side view showing one embodiment of a gripping mechanism in the apparatus of the present invention.

[Explanation of symbols]

 Reference Signs List A positioning mechanism B dimension detection mechanism C gripping mechanism D moving mechanism D-1 elevating means D-2 horizontal sliding means 2 elevating frame 3 traversing frame 4 hand frame 9 holding mat 10 roller conveyor 11 rebar mat 12 stopper 14 sensor 15 sensor 16 Sensor 17 Fixed Hand 18 Moving Hand 20 Sensor 23 Claw 30 Screw Shaft

Claims (2)

(57) [Claims] 1. A width, thickness and length are detected simultaneously with positioning of a rebar mat to be conveyed on a conveying means,
Determine the position of claw that grips the upper rebar of the reinforcing bar mat and the distance of descending and traversing movement.Then this claw descends, grasps the upper rebar, confirms the gripping, moves to the desired location, and descends by the desired dimension. A method of transferring a reinforcing bar mat, wherein the reinforcing bar mats are sequentially stacked. 2. An apparatus for gripping an upper rebar of a rebar mat conveyed horizontally, transferring the rebar to a desired location, and stacking the rebar mat, and a rebar mat positioning mechanism provided in the transporting means, and a resilient mat provided on the relocating mechanism. A dimension detection mechanism for detecting the width, height, and length of the reinforced mat, and a plurality of pawls provided on the mechanisms, each of which can be opened and closed, are arranged in two rows, and the interval between the rows is adjusted. An apparatus for transferring a reinforced mat, comprising: a gripping mechanism provided with a means for performing the above operation; and a moving mechanism including means for moving the gripping mechanism up and down by a desired size and means for moving the holding mechanism horizontally by a desired size.