JPH0432359Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a feeding device for transporting bar-shaped members such as reinforcing bars and pipes.

[Conventional technology]

Foundation work involves placing a large number of long reinforcing bars as appropriate and pouring concrete to form the foundation of a building.
BACKGROUND ART When cutting and bending pipes, steel materials, etc., conventionally, the reinforcing bars, pipes, etc. have been manually placed or transported. However, as the weight of each reinforcing bar, pipe, etc. increases, carrying out work manually in this way leads to a decrease in work efficiency and is dangerous, which also poses problems from a labor management perspective. Ta.

As a solution to these problems, Jitsukaiaki
No. 58-202213 discloses a feeding device for automatically transporting rod-like bodies.

5 and 6 are explanatory diagrams showing this conventional feeding device. FIG. 5 is a perspective view showing the overall configuration, and FIG.
The figure is a side view of the main part.

In this figure, reference numeral 50 indicates a pair of gate-shaped frames forming the side portions, and reference numeral 51 indicates a pair of I-beams arranged on the upper part of the frames 50. In the space surrounded by these frames 50 and I-beams 51, there is a storage section 53 in which rod-shaped bodies 52 are temporarily stored, a take-out section 54 located in front of this storage section 53, and a take-out section 54 located in front of this take-out section 54. Payout section 55 located in
There are three sections, and these sections 5
Each of 3, 54, and 55 is constituted by a frame that forms a diagonal portion that becomes lower toward the front. In addition, the storage section 53 and the take-out section 54, and the take-out section 54 and the take-out section 55
A stopper 56 having a cylinder for controlling the fall of the rod-shaped body 52 is provided in the dispensing section 55.

In this feeding device, the rod-like bodies 52 are bundled with restraint wires and supplied to a storage compartment 53, and the restraints are released on the storage compartment 53, and the unrestrained rod-shaped bodies are The body 52 is rolled forward by the slope of the storage compartment 53 and accumulates above the feed means 57 having a cylinder. Then, the cylinder of this feeding means 57 is driven to raise the head 58, thereby lifting the rod-shaped body 52 and taking out the rod-shaped body 52 from the section 5.
Move to 4.

These rods 52 are then rolled forward by the slope of the removal section 54 and positioned above the cylinder and the feed means 60, which has a head with a recess formed at the upper end capable of supporting the rods 52. do. Then, the cylinder of this feeding means 60 is driven to raise its head 59, thereby causing the rod-shaped body 52 to rise.
lift up.

Next, the restraint means 61 fixed to the I-beam 51 via a bracket is driven, and the gripping member 62 provided at the lower end of the restraint means 61 grips the first portion of the rod-shaped body 52, and the I-beam Another restraining means 64 movably attached to the movable frame 63 is driven to the restraining means 6.
A grip member 65 provided at the lower end of the rod-shaped body 5
Grasp the second side of 2. And motor 6
6 moves the restraint member 64 in the direction of arrow 68 via the chain 67 to the opposite end position corresponding to the restraint means 61. Next, the restraining means 61,
62 in the direction of the payout section 55, the gripping members 62 and 65 release the grip, and the rod-shaped body 52
is moved into the payout section 55.

A rod-shaped body 52 accommodated in this dispensing section 55
is rolled forward by the inclined portion of the dispensing section 55 and is stopped by the stopper 56 described above. By appropriately contracting the cylinder of this stopper 56, the rod-shaped body 52 is sent onto a transfer means 71 constituted by, for example, a roller conveyor.

[The problem that the idea attempts to solve]

By the way, the conventional feeding device configured as described above has an I of a length corresponding to the length dimension of the rod-shaped body 52.
Since the length of the beam 51 and each section 53, 54, 55 is required, the size is large, and although it can be used as a fixed device, it is not suitable as a mobile device to be loaded on a vehicle, etc. The control becomes complicated due to the large number of restraint means 64.
Since the rod-shaped body 52 must be moved in the direction of the arrow 68 and swung, it takes time to move the rod-shaped body 52, which poses problems in terms of feeding performance.

In addition, in the case of the feeding device shown in FIGS. 5 and 6, since the rolling motion of the rod-shaped body 52 is utilized for the feeding operation, the cross-sectional shape of the rod-shaped body 52 must be circular. This feeding device cannot transport rectangular members.

The present invention was made in view of the actual situation in the prior art, and its purpose is to provide a feeding device that can reduce the overall size and ensure good feeding performance. There is a particular thing.

[Means to solve the problem]

In order to achieve this object, the present invention provides a feeding device for transporting a rod-shaped member, which includes a frame on which the rod-shaped member is placed, a frame provided within the frame, and a frame configured to move the rod-shaped member in the transporting direction, and a carrier movable in the opposite direction; a hook rotatably mounted on the carrier and having a head extending substantially horizontally; a claw that is provided so as to be able to protrude in the transfer direction and has a tapered portion on the side of the rod-shaped member that is in a transfer standby state; and a bar that is provided within the frame, extends along the transfer direction, and is movable up and down; a rotatable roller is provided on the bar, a groove is provided in the bar with which a roller provided on the claw movably engages, the claw is formed to be movable along the bar, and the bar is moved up and down as the bar moves up and down. A rotatable roller provided on the hook is movably engaged with a roller provided on the frame and provided on the hook, and a movement start side of the rod-shaped member is formed so as to be retractable from the carrier. an upper groove formed at the position, an inclined groove connected to the upper groove and inclined downward, and an inclined groove connected to the inclined groove, located below the upper groove, and formed on the transfer end side of the rod-shaped member. The height of the head of the hook is set above the carrier before the carrier is moved, and the height of the head of the hook is set above the carrier when the rod-shaped member is transferred. As the bar moves up and down, the claw protrudes from the carrier, and the bar-like member is held and transported between the claw and the hook.

〔Example〕

Hereinafter, the feeding device of the present invention will be explained based on the drawings.

1 to 4 are explanatory diagrams showing one embodiment of the present invention, and in particular, FIG. 1 is a perspective view showing an example of a vehicle to which the feeding device of the present invention is installed. The vehicle shown in Fig. 1 automatically arranges rod-shaped members 1 such as reinforcing bars in a grid pattern for creating the foundation of a building.
A traveling body 2 having a crawler track, a rotating body 3 disposed on the traveling body 2, a boom 4 rotatably provided on the rotating body 3, an arm 5 rotatably provided on the boom 4, and Provided on the arm 5, the rod-shaped member 1
For example, a frame 8 provided integrally with the traveling body 2 is provided with a feeding device 9 of the present invention, which will be described later, on each side of a frame 8 provided integrally with the traveling body 2. This feeding device 9 is for transporting the rod-shaped member 1 from position 10 to position 11 as shown by arrow 12.

Fig. 2 is a side view showing the configuration of the feeding device of the present invention along line A-A in Fig. 1, Fig. 3 is a sectional view taken along line B-B in Fig. 2, and Fig. 4 is a cross-sectional view taken along line C-C in Fig. 3. 2 is a sectional view, and the feeding device of the present invention will be described below with reference to FIGS. 2, 3, and 4. 13 is a rod-shaped member 1
For example, a plurality of rod-shaped members 1 are stacked near one end of the frame 13 in a direction orthogonal to the longitudinal direction of the frame 13. Note that the frame 13 is attached to the frame 8 of the vehicle shown in FIG. 1 mentioned above. Further, as shown in FIG. 3, for example, this frame 13 has an external dimension set so as to have a width dimension L that is sufficiently smaller than the length dimension of the rod-shaped member 1.

14 is a rail arranged inside the frame 13, and 15 is a carrier movably attached to this rail 14. This carrier 15 has a screw hole 16 extending through the center as shown in FIG.
has been formed. 17 is a screw having a threaded portion that is screwed into the screw hole 16 of this carrier 15;
The length is set to be approximately the same as the length of the frame 13, and the length is arranged along the longitudinal direction of the frame 13. 18 is this scroll 1
By driving this motor 18, the screw 17 is rotated, and the above-mentioned carrier 15 is moved along the rail 14 in the transport direction shown by arrow 19 and in the opposite direction to the transport direction shown by arrow 20. It is now possible to move in the direction of

Reference numeral 21 denotes a hook attached to the carrier 15, which has a head 21a extending approximately horizontally, and a pin 22.
It is rotatable around the center. 23 is a rotatable roller provided at the lower part of the hook 21;
The roller 23 includes an upper groove 24 provided on the inner wall of the frame 13 located above, an inclined groove 25 connected to the upper groove 24 and inclined downward, and an inclined groove 25 connected to the inclined groove 25 and connected to the upper groove 24. The lower groove 26 is movably engaged with the lower groove 26 located lower than the lower groove 26 . Note that the inclined groove 25 and the lower groove 26 are formed in the rod-shaped member 1.
It is arranged on the transfer end side 27 of. A claw 28 is provided so as to be able to face the hook 21 and project vertically upward from the carrier 15, and has a tapered portion 28a on the side of the rod-shaped member 1 that is in a transfer standby state. 29 is a rotatable roller provided below the pawl 28; 30 is a bar that supports the pawl 28; this bar 30 is formed with a groove 31 in which the above-mentioned roller 29 is movably engaged. This bar 30 extends along the longitudinal direction of the frame 13, that is, the direction in which the rod-shaped member 1 is transported, and is capable of being raised and lowered.

Note that before the carrier 15 is moved, the height position of the head 21a of the hook 21 is set so as to be located above the carrier 15.

Reference numerals 32 and 33 denote links, of which the upper end of the link 32 is connected so as to be relatively rotatable to the end of the bar 30 located on the transfer start side 34 of the rod-shaped member 1, and the lower end is connected to the bracket 35 of the frame 13. The upper end of the link 33 is connected to the bar 30 located on the transfer end side 27 of the bar member 1.
The lower end is rotatably connected to the bracket 36 of the frame 13. Links 32, 33 and bar 30 mentioned above
The brackets 35 and 36 constitute a pair of parallelogram links.

37 is a clevis fixed at the bottom of the bar 30;
Reference numeral 8 denotes a cylinder whose one end is relatively rotatably connected to the clevis 37 and the other end is relatively rotatably connected to the bracket 36. The above-mentioned bar 30 moves up and down in response to the expansion and contraction of the cylinder 38.

Note that 39 is an end plate that is fixed to the end of the frame 13 located on the transfer start side 34 of the rod-shaped member 1 and holds the rod-shaped member 1. A limit switch 40 is attached to the carrier 15 and outputs a signal when the bar member 1 comes into contact with the limit switch 40. The signal output from the limit switch 40 is input to a control device (not shown).

Next, the operation in this embodiment will be explained.

First, the cylinder 38 shown in FIG. 2 is contracted, and the links 32 and 33 are rotated to move the bar 30 downward.
That is, with the pawl 28 lowered so as to retreat from the surface of the carrier 15, the motor 18 is driven, the screw 17 is rotated, and the carrier 15 is moved in the direction indicated by the arrow 2.
0, move it in the transfer start side 34 direction.

When the bar-shaped member 1a located in the front row is taken into the recess of the hook 21 and comes into contact with the limit switch 40, the limit switch 40 is activated and the cylinder 38 is extended by a command from a control device (not shown). , this causes the links 32 and 33 to rotate, and the clevis 37 and bar 30
rises, the claw 28 rises together with this, and the upper end of this claw 28 protrudes from the surface of the carrier 15.
With this, the rod-shaped member 1a is attached to the hook 21 and the claw 28.
is held between.

Next, when the motor 18 rotates in the opposite direction to that described above in response to a command from a control device (not shown), the carrier 15 moves through the screw 17 in the direction indicated by the arrow 1 in FIG.
Move in 9 directions. During this movement, the roller 29 moves along the groove 31 of the bar 30, and the roller 23 moves along the upper groove 24 of the frame 13, so that the rod-shaped member 1a is moved from the carrier 15 as shown in FIG. The hook 21 and the claw 28 keep it in a clamped state without causing any separation.

Then, when the carrier 15 moves until the roller 23 is located in the inclined groove 25, the hook 21 is moved to the fourth position.
When the carrier 15 begins to rotate clockwise in the figure and moves until the roller 23 is located in the lower groove 26, the hook 21 rotates about 90 degrees from the state shown in FIG. The clamping of the rod-shaped member 1a between the two is released, and the rod-shaped member 1a is placed on the frame 13 located on the transfer end side 27 shown in FIG. 2, and it becomes possible to take out the rod-shaped member 1a.

When the carrier 15 is at a predetermined transfer end position, a signal from a limit switch (not shown) or the like is output to a control device (not shown), thereby stopping the drive of the motor 18.

Further, when the rod-shaped member 1a is removed from the hook 21 located on the transfer end side 27, the limit switch 40 is activated, and in response to a signal output from the limit switch 40, the cylinder 38 is moved by a command from a control device (not shown). is contracted, thereby causing the links 32 and 33 to rotate as described above, and the crepis 37, the bar 30, and the pawl 28 to descend. Next, when the motor 18 is driven by a command from a control device (not shown), the carrier 15 moves in the direction of arrow 20 in FIG. 1 via the screw 17, and as the carrier 15 moves, the roller 2
3 moves along the lower groove 26, inclined groove 25, and upper groove 24 of the frame 13, and thereby the hook 21 is rotated counterclockwise and placed in an upright position as illustrated in FIG. . After that, the first
The rod-shaped member 1b shown in the figure and the like can be transferred from the transfer start side 34 of the frame 13 toward the transfer end side 27 in the same manner as described above.

In the case of a feeding device configured in this way,
The width L of the frame 13 can be set sufficiently smaller than the length of the bar member 1, the carrier 15, the screw 17, the bar 30, etc. can be arranged inside the frame 13, and the number of installed cylinders 38 is small. Therefore, the overall shape can be made smaller.

Further, when holding the bar-shaped member 1, adjacent bar-shaped members 1 are separated via the tapered portion 28a of the claw 28 that protrudes as the bar 30 moves up and down, and at this time, the hook 2
Since the height position of the head 21a of the rod 1 is located above the carrier 15, the rod-shaped member 1 will not be restricted by the head 21a and cause the load to collapse, and the rod-shaped member 1 can be transported easily. At first, hook 2
The horizontally extending head 21a of the bar member 1 and the vertically protruding claws 28 restrict the movement of the bar member 1 in the vertical plane and in the horizontal plane, and the bar member 1 can be transported while being held firmly. Further, as described above, since the number of installed cylinders 38 is small, control is easy, and furthermore, the claws 28 are raised and lowered via the rollers 29 and the bar 30, and the cylinders 38 are fixed to the frame 13. Since the actuator corresponding to the cylinder 38 is not provided in the carrier 15 portion,
There is no risk of an accident such as the rod-shaped member 1 coming into contact with an actuator such as the cylinder 38, and therefore good feeding performance can be ensured.

Note that the shape of the rod-like member 1 is not limited to those having a circular cross section, such as reinforcing bars, pipes, etc., and by appropriately setting the shape of the hook 21, etc., feeding operations can be performed on objects of various shapes.

[Effect of idea]

The feeding device of the present invention has a carrier,
By providing bars and the like within the frame, the overall shape can be made smaller. In addition, when holding a bar-shaped member, adjacent bar-shaped members are separated through the tapered part of the claw, and at this time, the bar-shaped member is restrained by the head of the hook, and the load does not collapse, and the bar-shaped member is transferred. In this case, the horizontally extending head of the hook and the vertically protruding claw restrict the movement of the rod-shaped member in the vertical plane and in the horizontal plane, and the rod-shaped member is transported while being held firmly. It is possible to ensure good feeding performance, and it can be used as a fixed type device as well as a mobile type device attached to a moving body such as a traveling vehicle.

[Brief explanation of drawings]

1 to 4 are explanatory diagrams showing one embodiment of the feeding device of the present invention, FIG. 1 is a perspective view showing an example of a vehicle to which the feeding device of the present invention is installed, and FIG.
A-A section in the figure, that is, a side view showing the configuration of the feeding device of the present invention, FIG. 3 is a sectional view taken along B-B in FIG. 2,
Figure 4 is a sectional view taken along line CC in Figure 3, Figures 5 and 6.
The figures are explanatory diagrams showing a conventional feeding device, with FIG. 5 being a perspective view showing the overall configuration, and FIG. 6 being a side view of the main parts. 1, 1a, 1b...rod-shaped member, 9...feeding device, 13...frame, 14...rail, 15...
...Carrier, 16...Screw hole, 17...Screw, 18...Motor, 21...Hook, 21a...
...Head, 22...Pin, 23, 29...Roller,
24... Upper groove, 25... Inclined groove, 26... Lower groove,
27...transfer end side, 28...nail, 28a...tapered part, 30...bar, 31...groove, 32, 33
...Link, 34...Transfer start side, 35, 36...
...bracket, 37...clevis, 38...cylinder, 39...end plate, 40...limit switch.

Claims (1)

[Scope of utility model registration request] A feeding device for transporting a rod-shaped member includes a frame on which the rod-shaped member is placed, a carrier provided within the frame and movable in a direction in which the rod-shaped member is transported, and in a direction opposite to the direction in which the rod-shaped member is transported. , a hook rotatably provided on the carrier and having a head extending substantially horizontally, and a hook provided so as to be able to face the hook and protrude vertically upward from the carrier, and to be in a transfer standby state. a claw having a tapered portion on the rod-shaped member side; and a bar provided within the frame, extending along the transport direction, and capable of being raised and lowered; the claw is provided with a rotatable roller; The claw is provided with a groove in which a roller provided thereon is movably engaged, the claw is formed to be movable along the bar, and is formed to be retractable from the carrier as the bar moves up and down; A rotatable roller provided on the hook and a roller provided on the frame movably engage, and an upper groove formed at a position on the movement start side of the rod-shaped member; It has a groove consisting of a sloped groove that is connected to the groove and slopes downward, and a lower groove that is connected to the sloped groove and is located below the upper groove and is formed at a position on the transfer end side of the rod-shaped member. However, before the carrier is moved, the height position of the head of the hook is set above the carrier, and when the bar-shaped member is transferred, the claw is raised and lowered as the bar moves up and down. protrudes from the carrier, and the rod-shaped member is held and transferred between the claw and the hook.