JPS60209427A - Shifting device for long-length article - Google Patents

Abstract

PURPOSE:To automatically shift a long-length article onto a carrier vehicle without the article being damaged, by pushing out the top end of a push bar attached to the carrier vehicle, upward from a digital loading table to move the carrier vehicle so that the long-length article is pushed out from this table. CONSTITUTION:When a U-like pipe (long-length article) U is shifted from a transfer table (loading table) 10 onto a stock vehicle (carrier vehicle) 13, a rail 64 is moved upward to push out the top end of a push bar 67 attached to the vehicle 13 from the top surface of the transfer table 10. Simultaneously, after a stock table 66 on this vehicle 13 is moved up to a predetermined position, the vehicle 13 is moved rearward to push out the U-like pipe U from the transfer table 10, thereby the pipe U may be automatically shifted onto the stock vehicle 13.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transloading device for elongated articles such as pipe materials.

Conventionally, long items such as pipe materials have been processed using stock tables or usually by hand. However, long pipes are heavy and bend easily, so at least three workers are required to carry them out.
Normally, four or five people would transfer the cargo.

Therefore, in order to save labor during transshipment work, we have considered installing a gripping device in the overhead running lane, and using this gripping device to grasp the pipe material and operating the overhead running lane to transload the pipe material. It will be done. However, in this case, the gripping force of the gripping device must be changed depending on the weight or wall thickness (strength) of the tube material, and the gripping width must be changed in accordance with the diameter of the tube material, so the structure of the gripping device must be changed. Furthermore, since the tube material is long, there are problems such as the need for a large number of such complicated gripping devices.

The present invention was made in consideration of the above circumstances, and an object thereof is to provide a device for transloading long articles that can save labor in transloading long articles and has a simple structure. do.

The following -5- is a fixed decoration for the 8th 151I L one T whistle 1
Mh will be explained with reference to FIG. This embodiment is a manufacturing device for 0-shaped pipes using the transloading device according to the present invention, and in this device, the entire process from pipe bending to transloading of the 0-shaped pipes as a product is carried out. It is supposed to be done.

First, the overall configuration of this manufacturing apparatus will be described. Reference numeral 1 in the figure is a stockyard. A roller conveyor 2 and an elevating roller conveyor 3 are installed along the length of the stockyard 1. Close to and to the right of the lifting roller conveyor 3 (in the following, front, rear,
Left and right are bottom, top, and bottom in Figure 1 unless otherwise specified.
Left and right. ) has a bending work table 4.
is installed. A bending device 5 for bending the pipe P into a U-shape is installed on the bending table 4.

Also, on the left side of the bending work table 4, an elevating roller conveyor 3
A cutting machine 6, a chamfer mV, and an inspection table 8 are installed in this order behind the machine. Furthermore, on the left side of the inspection table 8, there is a lifting roller conveyor 3 and a conveyor 9 along the roller conveyor 2, and a conveyor (mounting table) 1 following the conveyor 9.
0 are installed one after another, and cooling water l! is placed on the left side of the conveyor 10. 11 and resistance heating machines 12 are installed in sequence.

Further, a stock truck (moving truck) 13 that moves in the front-rear direction is installed below the conveyor 10, and completed U-shaped tubes U are loaded onto this stock truck 13.

Next, each part of this manufacturing apparatus having the overall configuration as described above will be explained in detail along the flow of the pipe P and the U pipe Pu.

As shown in FIG. 3, the stockyard 1 has a plurality of support plates 14 arranged downwardly toward the roller conveyor 2 at its upper part, and the ends of the support plates 14 on the roller conveyor 2 side A push rod 15 is provided movably in a direction orthogonal to the support plate 14. This push rod 15 is configured to be moved up and down by a cylinder 16 via a link mechanism 17.

Then, when the push rod 15 moves upward, one pipe P is pushed out. This protruding pipe P is connected to a gangboard 1 that is passed between the stockyard 1 and the roller conveyor 2.
8 and rests on each roll 19, 20 of the roller conveyor 2 and the lifting roller conveyor 3, which will be described later.

The roller conveyor 2 and the lifting roller conveyor 3 are for conveying the pipe P to the bending work table 4, and as shown in FIGS. °20 is provided. These rolls 19, 20 are driven to rotate at the same speed via sprockets 21, 22 by a motor and a chain (not shown). Further, the lifting roller conveyor 3 is provided with pinch rolls 23, as shown in FIGS. 4 and 5. This pinch roll 23 is used to ensure that the pipe P is fed by sandwiching the pipe P between itself and the roll 20, and is rotated by a cylinder 24 to pinch the pipe P. It's meant to be absorbed.

, the rolls 19 and 20 are driven to rotate and convey the pipe P until its center reaches the bending device 5,
Stop automatically. Note that the conveyance distance of the pipe P is determined by the rotation speed of the rolls 19 and 20, and these rotation speeds are controlled by a rotary encoder (not shown).

When the rolls 19, 20 stop, the lifting roller conveyor 3 descends. That is, as shown in FIG. 5, the elevating roller conveyor 3 is composed of an upper frame 3a on which the rolls 20 are provided, and a lower frame 3b that supports the upper frame 3a. A plurality of shafts 25 are each rotatably provided. Sprockets 26, 27 are non-rotatably provided on this shaft 25. One sprocket 26 is rotationally driven by a chain 29 whose one end is fixed to a rod 28a of a cylinder 28. A chain 30 is wound around the other sprocket 27.

The negative end of this chain 30 is fixed to the upper frame 3a. Therefore, the upper frame 3a has a chain 30. It is supported by the lower frame 3b via the sprocket 27 and the shaft 25, and is moved up and down by rotation of the sprocket 26. Note that when the upper frame 3a is lowered, the left end of the pipe P is supported by a boom (see FIG. 8), which will be described later.

Further, as shown in FIG. 8, the bending work table 4 runs on a rail 31 extending in the front-rear direction, and a bending device 5 is provided at the left end of the upper surface thereof. As shown in FIGS. 9 and 10, this bending device 5 includes a base 32 fixed on the bending work table 4, and is installed on this base 32, and by rotating a handle 33 in the forward and reverse directions, A movable table 34 whose position can be changed in the front-rear direction via a screw mechanism or the like, and this movable table 3
4 and a rotary table 35 rotatably provided on top of the rotary table 35. A mold 36 is provided on the upper surface of the rotary table 35. This mold 36 is used when bending the pipe P into a U-shape, and has the same radius of curvature as the inside radius of the bent portion of the U-shaped pipe U to be manufactured.

When the pipe P is bent into a U-shape by this bending device 5, the pipe P is held down by the cylinder 37 provided on the moving table 34, and the pipe P is held by the cylinder 38 provided on the rotary table 35.
is pressed against the outer periphery of the mold 36. In this state, the rotary table 35 is rotated about the axis of the mold 36 in the six directions of the arrows in FIG. 9. This allows the pipe P to be bent into a U-shape. It goes without saying that the rotation amount (rotation angle) of the rotary table 35 should be slightly larger than the bending angle of the pipe P in consideration of the springback of the bent portion of the pipe P.

During this bending process, the right end of the pipe P is supported by a support conveyor 39 provided on the bending table 4 so as to be positioned on an extension of the lifting roller conveyor 3. On the other hand, the left end of the pipe P is connected to the rotary table 35.
It is held by a boom 41 provided at. That is,
A column (not shown) having a horizontal arm is erected on the upper surface of the rotary table 35, and a pivot 40 whose axis coincides with the axis of the mold 36 is rotatably attached to the tip of the horizontal arm. It is set in. This pivot 40 has a boom 41
is provided. A plurality of hooks 42 are provided at the lower end of the boom 41 along its longitudinal direction.

The hook 42 is used to hold the pipe P during bending, and its bent portion is positioned slightly below the roll 20. Therefore, if the boom 41 is placed along the lifting roller conveyor 3, the pipe P will be automatically held by the boom 41 when the lifting roller conveyor 3 descends.

When the pipe bending process is completed and the U-bipule u is manufactured, the bending work table 4 moves backward until the U-bipule u reaches an extension of the conveyor 9. Note that the amount of movement of the bending work table 4 is controlled by a limit switch.

When the U pipe Pu is located on the extension of the conveyor 9,
The U-vibrator Pu is transported a predetermined distance to the left by a handling robot (transporting means) 43 provided on the bending work table 4. That is, as shown in FIGS. 9 and 10, the handling robot 43 includes a main body 44a that is slidably provided on a horizontal shaft 44 extending in the left-right direction and is moved by a cylinder 45, and this main body. The structure includes a claw part 44b of a well-known structure provided on the upper part of the part 44a, and the claw part 44b
When the user grasps the U-viple u, the bent portion of the U-viple u is moved by the cylinder 45 until it reaches the inspection table 8. Then, on the inspection table 8, the accuracy of the bent portion of the U-biple u is inspected by an operator.

After the accuracy inspection is completed, the U pipe Pu is transferred to the transfer robot 4.
6, it is further conveyed to the left. Transfer robot 46
As shown in FIG. 1, this is installed to move along conveyors 9 and 10, has a well-known auto footer that opens and closes automatically, and connects the auto hook to a U pipe. The U-pipe Pu is conveyed by being hooked onto the bent part of the Pu.

Then, both ends of the U-viple u are cut off by the transfer robot 46 1j! 16, and both ends thereof are cut by the cutting machine 6 into a predetermined length. After cutting, the U-viple u is further transported by the transport robot 46 until the cut portion reaches the chamfering machine 7, and the cut surface is chamfered by the chamfering machine 7.

Further thereafter, the bent portion of the U biple u is hooked onto the hooks of the transport robot 46, and the U biple u is transported onto the transport conveyor 10 with its right end portion placed on the transport conveyor 9.

The conveyor 9 is configured to include a plurality of horizontal rolls 47 extending in the front-rear direction on its upper part, and the horizontal rolls 47 are rotatable.

In addition, the conveyor (loading table>10) is spaced apart from each other in the longitudinal direction by m
The structure includes pillars (support parts) 48 erected in relation to each other, and a connecting member 80 provided between each pillar, and one end of a support member 49 extending in the front-rear direction is provided at the upper end of each pillar 48. The support member 49 has a rotation angle of 0 - 1 (horizontal beam > 5
0 is rotatably supported at both ends (
Aru. Therefore, the conveyor 10 has a comb shape in plan view. Note that one of the rotating rolls 50 is rotationally driven by a motor 51 via a chain 52 and a sprocket 53, and the other rotating rolls 50 are driven by a sprocket 54 and a chain ( (not shown).

Also, the left side of the conveyor 10, that is, the conveyor 1
0 and the cooling water tank 11, an elevating roll 55 is installed. This elevating roll 55 is for pinching the U biple u with a pinch roll (not shown) and transporting it reliably without slipping.
A sprocket having the same number of teeth as the sprocket 54 provided at 0 is provided, and is rotated by a chain that rotationally drives the rotating roll 50. Moreover, the lifting roll 55 can move up and down in order to throw the bent portion of the U-biple u into the cooling water of the cooling water tank 11.

Then, the U pipe Pu placed on the conveyor 10
is transported by the transport conveyor 10, lifting rolls 55, and pinch rolls, and its bent portion is sent into the heating machine 12. The bent portion sent into the heating ti 12 is heated to a predetermined temperature to relieve its internal stress. Thereafter, the U pipe Pu is transferred to the transport table 10. It is conveyed to the right by the lifting rolls 55 and pinch rolls until its bent portion reaches above the cooling water tank 11. When the bent portion reaches the cooling water tank 111, the elevating roll 55 and the pinch roll descend with the U biple u sandwiched therebetween. As a result, the U-bipule u rotates around the leftmost rotary roll of the conveyor as a fulcrum, and is immersed in the cooling water tank 11 to be rapidly cooled.

Figures 15 to 17 show cold N1 water tanks.
A partition wall 57 is provided at the bottom right side of the water tank body 56, and cooling water is pumped from a pump (not shown) into the space S formed between the partition wall 57 and the water tank main body 56. The cooling water flows through the holes 5 formed in the upper part of the partition wall 57.
8 into the water tank body 56. In addition, the right side wall 59 of the aquarium main body 56 is connected to the other side wall 60,
61.62, the side wall portion 5 is made lower than the diameter of the U biple u and is formed integrally with the aquarium body 56.
9a, and a plurality of water stop plates 59b removably provided at the upper end of the side wall portion 59a. Therefore, when one of the water stop plates 59b is removed, the side wall 59
A notch is formed in the upper end of the tank, from which cooling water flows out. In addition, the reference numeral 63 in the figure is
This is a gutter provided so as to surround the outer periphery of the water tank body 56.

When the U-viburu u is cooled by the cooling water tank 56, the cooling water is caused to flow into the water tank body 56 by the pump, and the two water stop plates 59b located below the U-vibe P1 are removed. Cooling water overflows from the Note that the side wall portion 59a of the cooling water overflowing
The water level H from the upper end is set higher than the diameter of the U pipe Pu. After that, the lifting roll 55 and the pinch roll are lowered to immerse the bent part of the U-biple u into cold fill water.At this time, since the water level H is higher than the diameter of the U-pipe Pu, the U-bipule u The entire bent portion can be immersed in cold NI water at the same time while the bent portion is held substantially horizontally, thereby achieving uniformity in the material of the bent portion.

Further, since the cooling water overflows only from the portion where the water stop plate 59b is removed, the capacity of the pump that supplies the cooling water can be reduced. By the way, even with a normal cooling water tank where all side walls are the same height, if you let the cooling water overflow from the side walls and make the water level from the top of the side walls higher than the U pipe Pu, you can create a U-vibe. The entire Pu bending group can be immersed in cold NJ water at the same time. However, this method has the disadvantage of requiring a pump of maximum human capacity.

The U pump Pu cooled as described above is made into a U-shaped tube U as a product. This U-shaped tube U has an elevating roll 55
Then, the pinch roll is moved upward to return it to the horizontal state, and then it is transported by the elevating roll 55, the pinch roll, and the transport table 10 until it is entirely positioned on the transport table 10. And stock trolley 13
will be transshipped to.

The stock truck 13 is provided below the conveyance table 10, as shown in FIGS. 18 to 21.

The vehicle is configured to include a truck body 65 that runs on rails 64 extending in the front-rear direction, and a stock table 66 that is supported by the truck body 65 so as to be movable up and down. Note that the rail 64 can be moved up and down by a mechanism similar to the up-and-down movement mechanism in the elevating roll conveyor 3 described above.

A plurality of pairs of push rods 67 are erected on the trolley body 65, spaced apart from each other in the front and back direction. The push rod 67 is for pushing the U-shaped tube U backward from the conveyor table 10.
In order to adjust the position according to the width of the tube U, it is provided so as to be movable in the front-back direction.

Further, the left and right ends of the stock table 66 are supported by the truck body 65 in the following manner so as to be movable up and down. That is, a shaft 68 extending in the front-rear direction is rotatably provided at the lower end of one end of the truck body 65. This shaft 68 is configured to be rotated via a gear 71 by a rack 70 that is moved by a cylinder 69. Furthermore, a sprocket 72 is non-rotatably provided at each end of the shaft 68. A sprocket 73 is rotatably provided at the upper end of the truck body 65 so as to correspond to the sprocket 72 . A chain 74 is attached to these sprockets 72 and 73.
is wound. Each end of this chain 74 is fixed to a stock table 66, respectively. Therefore, when the shaft 68 is rotated forward and backward, the stock table 66 moves up and down accordingly. Also, stock table 6
The other end of the stock table 66 is also supported by a support mechanism similar to that of the one end, but in the support mechanism provided at the other end, as shown in FIG.
5 is provided to be movable in the left and right direction, and each end of a chain 74 is fixed to this shaft 75. This allows the heights of the left and right ends of the stock table 66 to be adjusted as appropriate, and it is possible to tilt them.

When the U-shaped tube U is to be transferred from the transport table 10 to the stock truck 13, the rail 64 is moved upward to cause the upper end of the push rod 67 to protrude from the upper surface of the transport table 10. At the same time, the stock table 66 is moved up to a predetermined position.

Note that the upper limit position of the stock table 66 is regulated by a phototube (not shown), and the upper limit position of the stock table 66 is regulated by a phototube (not shown).
When there is no U-shaped tube U on the stock table 66, the phototube detects the top surface of the stock table 66, and when a zero-shaped tube is placed on the stock table 66, the U-shaped tube U is detected.
By detecting the upper surface of the stock table 66, the stock table 66 is stopped at a predetermined position. Next, the stock truck 13 is moved rearward, and the U-shaped tube U is pushed out from the transport table 10 by the push rod 67. Then, the U-shaped tube U is automatically transferred onto the stock truck 13.

In this way, in the reloading device of the present invention, the push rod 67 is provided on the stock truck 13, and the push rod 67 pushes out the U-shaped tubes U and reloads them onto the stock table 66, so that no human effort is required. It is not necessary at all and can save labor in reloading work.Moreover, since its position on the stock table 66 can be changed, the U-shaped tube U can be moved from the transport table 10 to the stock table 6.
It is possible to prevent the U-shaped tube U from being damaged when transferring it onto the container 6. Further, since the U-shaped tubes U are pushed out and reloaded, a complicated device such as a gripping device is not required at all, and the structure can be made simple. Furthermore, since the stock truck 13 runs below the rotating roll (horizontal beam) 50, it can be stored below the rotating roll 50 when not in use, thus making effective use of space. I can do it.

In the above embodiment, the horizontal beam is a rotary roll 50 that is rotationally driven, but it may also be configured as a simple rod-shaped one or a plate-shaped one.

Further, in the above embodiment, the push rod 67 is
5, but it may also be provided on the stock table 66.

As explained above, according to the long article reloading device of the present invention, the loading table is formed into a comb shape, and the upper end of the push rod provided on the movable cart projects upward from the loading table. By moving the movable trolley, the long articles can be reloaded, and the stock table of the movable trolley can be repositioned vertically, so long articles can be moved without manual intervention and can be easily damaged. It can be reloaded without any trouble, the structure is simple, and the movable cart can be stored under the horizontal beam when not in use, allowing effective use of work space. .

[Brief explanation of the drawing]

The attached FIGS. 1 to 21 show one embodiment of the present invention, in which FIG. 1 is a plan view showing the overall schematic configuration, FIG. 2 is a front view thereof, and FIG. 3 is a stockyard and an O-ra conveyor. 4 is a side view showing the elevating roller conveyor and the pinch roll, FIG. 5 is a front view thereof, FIG. 6 is a side view for explaining the vertical movement mechanism of the elevating roller conveyor, and FIG. 7 is a side view showing the elevating roller conveyor and the pinch roll. 8 is a front view showing the bending work table, FIG. 9 is a plan view showing the bending device, FIG. 10 is a front view of the same, FIG. 11 is a front view showing the handling robot, and FIG. The figure is a cross-sectional view of the xn-xm line arrow in Figure 11.
3 is a plan view showing the conveyor (10), FIG. 14 is an enlarged cross-sectional view taken along arrows X IV - X IV in FIG.
Figure 5 is a plan view showing the cooling water tank, Figure 16 is the X in Figure 15.
An enlarged sectional view in the direction of the Vl arrow, FIG. 17 is the x vi of FIG. 15.
18 is a plan view showing the stock truck, FIG. 19 is an enlarged front view thereof, and FIG. 20 is a side view for explaining the vertical movement mechanism of the stock table.
FIG. 21 is an enlarged front view of the same. 10... Conveyor (placement table), 13
...Stock trolley (mobile trolley), 48...
・・Strut (support part), 50・・Rotating roll (horizontal beam), 66・・Stock table, 67・・
...Push stick. Applicant Mitsubishi Metals Corporation Figure 8 Tomq

Claims (1)

[Claims] a mounting table comprising a plurality of horizontal beams, one end of which is supported by the erected support, spaced apart from each other in a horizontal direction perpendicular to the longitudinal direction of the support; It consists of a movable trolley that runs in the longitudinal direction of the horizontal beam below the horizontal beam, and the movable trolley has a stock table whose position can be changed in the vertical direction, and whose upper end protrudes upward from between the horizontal beam and the horizontal beam. 1. A transloading device for long articles, characterized in that it is equipped with a push rod that can be pushed.