JPH06305569A - Automatic piling up device for angle steel - Google Patents

Abstract

PURPOSE:To completely automatize piling up angle steels by arranging a stopper member in the uppermost step so that it can take refuge relating to a route of dropping down the angle steel from both end supporting devices. CONSTITUTION:Several rows of angle steels C, in a condition that of several rows of the angle steels C brought into contact with each other, one or a plurality of the steels in the center are removed with the two steels left in both ends, are lifted from a conveyer to a lifting end by each traverse base 5 of a traverser device, and thereafter advanced in a horizontal direction, when arriving at an advancing end, a stopper member 36 for the uppermost step, taking refuge relating to a route of dropping down the angle steel, is advanced into a part of the condition removing the angle steel. In this condition, when each traverse base 5 is lowered down, both end parts of the angle steel C are supported by a pair of supporting levers 19, to transfer load several rows of the angle steel to a pair of the supporting levers 19. When the traverse base 5 is retracted to successively dislocate a pair of the supporting levers 19, several rows of the angle steels in a removal condition are piled up with no interference with the uppermost step angle steel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for automatically stacking several rows of chevron steel, and more particularly, to one or more central chevron steels among several rows of chevron steel which are in contact with each other. The angle steel can be automatically stacked at all stages, including stacking a number of angle steels in the extracted state with the two strips left at both ends in a regular posture. The present invention relates to a stacking device.

[0002]

2. Description of the Related Art For example, in order to stack three rows of chevron steel, as shown in FIG. 16, every time three rows of chevron steel are piled in a regular posture in predetermined stages, the three piles are piled in a regular posture. Two rows of chevron are piled up in each valley part of the row of chevron in an inverted posture, and at the top, one of the three rows of chevron is in the center.
When stacking two rows of angled steel without a book in a regular posture to prevent it from reaching a middle height, when stacking several rows of angled steel in multiple stages and further stacking steel bundles tied with wires This is to stabilize the stacking posture of the upper steel material bundles. When stacking four rows of angle steel, the middle two are removed in the uppermost stage, and in the case of five rows, one or three in the center are removed to obtain a middle height. Are prevented.

[0003] In the conventional apparatus, the angle steels can be automatically stacked in all the stages except the uppermost stage. However, the above-mentioned stacking of the angled steels in the uppermost stage cannot be automated because of the following reasons. Was used in a state where one or a few of the central parts were removed, and the stacking of angle steel was not completely automated. That is, in stacking a number of rows of chevron steel, a traverse device that performs chevron movement by placing chevron steel on a large number of traverse stands and a row of chevron steel was conveyed by the traverse device to the forward end and also to the forward end. In this state, both end support devices consisting of a pair of support levers for supporting and transferring both ends of this number of angle steels, and each trough of each number of angle steels stacked in a regular position in a predetermined position. In the meantime, a reversing device for stacking the angle steels, which is one row smaller than this, in a reversing posture is mainly used. When several rows of chevron steel placed on each traverse stand reach the forward end and also reach the forward end, each traverse stand descends, and in the middle, both ends of several rows of chevron are supported by the support levers of the both end supporting device. Supported by, the rows of angle steel are transferred to the respective support levers. Then, when each traverse table reaches the descending end, it retreats along the horizontal direction.However, since the angle steel supported by the pair of support levers at both ends is long, it greatly bends at its center. Then, even if each traverse table reaches the descending end, the central part of several rows of chevron steel whose both ends are supported by the pair of support levers becomes one or more central traverse tables located at the descending end. It is in a supported state. For this reason, when each traverse base retracts in the horizontal direction, the angle steel whose both ends are supported by the pair of support levers is dragged in the retreat direction of the traverse base, and the stopper member for preventing this is formed. When the traverse table is retracted, it is prevented that several rows of angle steel are dragged in the retracting direction of the traverse table. Then, after the traverse table has completely retracted, the support by each support lever that supports the both ends of the angle steel in several rows is sequentially removed, and the both ends of the angle steel in several rows are sequentially dropped, and immediately below it. It is sequentially stacked on the angle steel that is stacked on each support of the lifter device. In addition, every time several rows of angle steel are stacked in this way, using the reversing device, one angle less than the angle steel is stacked between the valleys of several rows of angle steel in an inverted posture. ing.

In this way, when each traverse table that makes a rectangular motion descends at the rising end and reaches the forward end, a pair of both ends of the angle steels supported by each traverse table are paired. Since this number of rows of chevron steel is transferred from each traverse base to a pair of support levers, the two rows of chevron steel at both ends are left.
If the traverse device and the both-ends supporting device are used to stack the angle irons in a row on the uppermost stage, the following problems occur. That is, the central portion of the two rows of angle steel is largely bent by its own weight, and is supported by one or several traverse bases located in the central portion among a large number of traverse bases. When the traverse base moves backward in the horizontal direction after reaching, the two rows of angle steel are dragged in the backward direction of the traverse base. Even if the two rows of angle steel are dragged in the backward direction of the traverse table in this way, the angle steel arranged on the front side is provided on the side portion of the portion where the angle steel is arranged. Although it is not dragged in the backward direction of the traverse base by the stopper member, the angle steel arranged on the back side is one or several of the angle steel arranged between the angle steel arranged on the front side. Because a minute gap is formed,
If it is dragged in the backward direction of the traverse table and dropped in this dragged state, it cannot be stacked on the angle steel directly below.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the conventional automatic stacking apparatus for angle steel, and takes out one or a plurality of central angle steels of several rows and leaves two at both ends. The problem was to automatically stack all the angle steels of all the stages including the uppermost stage when stacking the several angled steels in the extracted state on the uppermost stage.

[0006]

Means for Solving the Problems In order to solve the above problems, the means adopted by the present invention is to convey a long angle steel by arranging a large number of chain conveyors in parallel at predetermined intervals. And a lifter composed of a plurality of lifter devices, each of which is arranged so as to be connected to an end portion of the transfer device for stacking several rows of chevron steel in a multi-stage manner and has a support base that can be moved up and down. The apparatus and a large number of traverse stands arranged between the respective chain conveyors constituting the conveyor, by performing a rectangular motion in synchronization with each traverse, to the end of the conveyor. A traverse device for lifting a few rows of the angle steel that has been transported and transporting it to just above the support base of the lifter device, and a pair of support levers rotatably arranged on both sides of the lifter device. End support device for supporting and transferring both ends of several rows of chevron steel that has been lifted by the traverse device and has been transported to just above the support table, and the end portion of the transport device. Reversal for stacking several rows of chevron steel adsorbed and reversed by a reversing arm equipped with a magnet plate and stacking in a reversing posture on each trough of several rows of chevron steel stacked on each support of the lifter device. A device, and comprises, after lifting a number of chevron steel that has been transported to the terminal end of the transport device by each traverse base of the traverse device, horizontally moved to just above the support base of the lifter device, Both ends of the several rows of chevron are supported and transferred by the respective support levers of the both end supporting device, and in this state, the respective support levers are sequentially rotated laterally to remove the support. Then, the end portions of the several rows of chevron steel are sequentially dropped and sequentially stacked on each of the support bases of the lifter device, and each time the stacking is performed several times, one row less than the stacking time by the reversing device. In the angle stacking automatic stacking device configured to invert the angle steel and stack the angle steel in each valley portion of the rows of angle steel stacked on each support of the lifter device in the inverted posture, several rows that are in contact with each other In order to stack the several rows of the angled steel in the extracted state in which one or a plurality of the angled steels of the center are removed and the two steels at both ends are left on the uppermost stage in a proper posture, the two ends of the plurality of the angled steels in the extracted state are stacked. When the traverse bases of the traverse device are retracted in a state in which the portion is supported by the support levers of the both end support devices, the angle iron steel on the back side is dragged to the front side by the retreat of the traverse bases. That is, the uppermost stopper member for preventing the above is arranged so as to be retractable with respect to the falling path of the angle steel from the both-ends supporting device.

[0007]

According to the present invention, each traverse table of the traverse apparatus is arranged in a row in which a plurality of chevron-shaped steels which are in contact with each other and are arranged in parallel are pulled out and one or a plurality of them at the center are pulled out, leaving two at both ends. When the angle steel is lifted from the transport device and raised to the rising end, it is advanced in the horizontal direction and reaches the forward end, and the stopper member for the uppermost stage retracted to the falling path of the angle steel is Enter a few rows of angle steel. When each traverse table descends in this state, the two ends of the angle steel in the extracted state are supported by a pair of support levers that constitute the both end support device,
The several rows of the angle steel in the removed state are transferred from each traverse table to the pair of support levers. When each traverse table reaches the descending end, the central part of the several angle irons in the extracted state is largely bent, and one of the traverse tables in the central part is bent.
Or, when the traverse bases are supported by multiple traverse bases and each traverse base is retracted in this state, a few rows of angle steel in this extracted state try to be dragged by the traverse bases, but in front of the front side angle steels. In addition to the existing stopper member, another uppermost stopper member that is normally retracted to the falling path of the angle steel is inserted in front of the angle steel on the back side. Therefore, not only the front angle chevron but also the back angle chevron does not come into contact with the uppermost stopper member and is not dragged forward, and maintains the same position. Therefore, after each traverse table has completely retracted, if the pair of support levers supporting both ends of the several rows of the angle steel in the extracted state are sequentially removed, the several rows of the angle steel in the extracted state are Can be stacked on angle steel without any problems. When stacking the next angle steel, the stopper member for the uppermost stage is retracted from the falling path of the angle steel from the both-ends supporting device so that several rows of angle steel contacting each other interfere. Instead, let it fall on each support of the lifter device.

[0008]

EXAMPLES The present invention will be described in more detail below with reference to examples of stacking three rows of angle steel. FIG. 1 is a schematic plan view of an automatic stacking apparatus for angle steel according to the present invention, FIG. 2 is a schematic front view showing only the same main portion, and FIG. 3 is a side view of a portion of a traverse apparatus B. is there.
First, a schematic configuration of the present apparatus will be described with reference to FIGS. Conveyor A for conveying angle steel C
Is connected to a part in which a large number of first chain conveyors 1 are arranged in parallel at a predetermined interval and a part in which a large number of second chain conveyors 2 are arranged in parallel at a predetermined interval. First, the long angle chevron C is used.
It conveys to the terminal end of the chain conveyor 1.
A large number of first chain conveyors 1 are synchronously driven by a common line drive shaft 3, and a large number of second chain conveyors 2 are synchronously driven by another common line drive shaft (not shown). . The traverse device B has three rows or two rows of the angle steel C in the “one-pulled state” that have been transported to the end portion of the transportation device A, directly above each support base 17 that constitutes a lifter device D described later. Is a device for transporting to a plurality of traverse stands 5 and is provided between a plurality of second chain conveyors 2 respectively.
Are arranged, and the traverse bases 5 perform an approximate rectangular motion in synchronization with each other by the same drive source. That is, as shown in FIG. 3, the traverse base 5 is supported by the support case 6 so as to be movable in the front-rear direction, and the brackets 7a and 7b attached to the front and rear of the lower surface of the support case 6 and the cranks. The crank levers 8a and 8b are pivotally attached, the crank levers 8a and 8b are connected by a connecting rod 9, and the crank lever 8a is supported by a line drive shaft 11 common to the traverse bases 5. The entire supporting case 6 is raised and lowered by the rotation. In addition, the bracket 12 attached to the lower surface of the traverse base 5 supported by the support case 6, and the line drive shaft 1 common to the traverse bases 5.
Lever 14 that is integrally attached to 3 is knuckle 15
The traverse table 5 is moved back and forth with respect to the support case 6 by the rotation of the line drive shaft 13.

A lifter device D is arranged in front of the carrying device A. This lifter device D is composed of a large number of lifter device units 16, each of which is provided with a support stand 17 capable of moving up and down, and chevron steel is stacked on the upper surface of each support stand unit 17. Lifter device D
Each of the support bases 17 constituting the above is configured to move up and down in synchronization with each other via a rack and pinion mechanism (not shown) by the rotation of the line drive shaft 18. Also,
On both sides of the lifter device D and above the lifter device D, the angle steel C that has been conveyed to the position of the ascending end and the advancing end by the approximate rectangular motion of the traverse device B is provided. A both-ends supporting device E for supporting both ends is arranged. This both-ends supporting device E is
The support lever 19 is composed of a pair of support levers 19. One of the support levers 19 is attached to the lower surface of a gate-shaped mount 21 provided above the lifter device D, and the other support lever 1 is provided.
9 is attached to the lower surface of the movable body 22 which is movably supported by the beam portion 21 a of the pedestal 21. Both support levers 19 have the same structure, and as shown in FIGS. 4 and 5, the upper end portion thereof is rotatably supported by the beam portion 21 a of the pedestal 21 or the movable body 22 via the support shaft 23. The bracket 24 attached to the rear surface of the cylinder 25 and the rod 25a of the cylinder 25 are connected to each other via the pin 26. Since the shaft center of the support shaft 23 is along the loading direction of the angle steel C, each support lever 19 moves to the lifter device D by retracting the rod 25a of the cylinder 25 when the lifter device D is used as a reference. Rotate sideways. Further, on the front surface of the support lever 19, a holding tool 27 for holding the chevron steel C supported by the supporting portion 19a from above is mounted so as to be able to move up and down. That is,
The holding tool 27 is maintained horizontal by the guide of the two guide rods 28, and is lifted and lowered with respect to the support portion 19a of the support lever 19 by the action of the lift cylinder 29. One of the support levers 19 is attached to the movable body 22 because the movable body 22 is moved along the beam portion 21a of the pedestal 21 in accordance with the length of the angle steel C. This is to enable stacking of different angle steels C.

Further, as shown in FIGS. 1, 2 and 12, respectively, between the respective first chain conveyors 1 constituting the conveying device A and constituting the lifter device D. In the part just before the lifter unit 16
Reversing arms 31 each having a magnet plate 30 are arranged, and one end of each reversing arm 31 is attached to a reversing shaft 32. A line drive shaft 33 is arranged below each reversing shaft 32, and the line drive shaft 33 and each reversing shaft 32 are connected via a gear.
The reversing arms 31 can be simultaneously reversed by the rotation of. The reversing device F is composed of a large number of reversing arms 31 provided with the magnet plate 30, and attracts the two rows of chevron steel C conveyed to the end portion of the first chain conveyor 1 by the conveying device A to the magnet plate 30. Angle steel C stacked on the support 17 by turning it over
It is to be piled up in an inverted posture between the valleys.

Further, as shown in FIGS. 1 and 11,
A first stopper member 34 is arranged between each lifter device unit 16. The first stopper member 34 has a predetermined height, and when the traverse base 5 descends at the forward end and reaches the descending end and then retreats, both ends are supported by the pair of support levers 19. The chevron C supported on the traverse table 5 is supported so that the chevron C is supported so that the chevron C is prevented from being dragged to the front side. It is a stopper member for guiding the angle steel C stacked in multiple stages on the front side. Further, as shown in FIGS. 2 and 11, a plurality of second stopper members 35 are arranged in a portion above the rising end position of each support stand 17. That is, one second stopper member 35
Is attached to the lower surface of the movable body 22 in a suspended state, and the remaining second stopper member 35 is attached to the beam portion 21a of the pedestal 21 in a suspended state. The second stopper member 35 is brought into contact with three rows of angle steel C mounted on the traverse table 5 which is moving forward at the rising end, or two rows of "one-bar-drawing state", and the forward end position thereof. It is a stopper member for determining.

As shown in FIGS. 2, 14 and 15, a plurality of (two in the embodiment) uppermost stopper members 36 are arranged above the lifter device unit 16. That is, the mounting plate 37 is vertically suspended and fixed to the lower surface of the beam portion 21a of the gantry 21, and the support shaft 38 is horizontally attached to the lower end of the mounting plate 37 along the longitudinal direction of the angle steel C. One end of a U-shaped uppermost stopper member 36 supported by the support shaft 38 is rotatably supported, and a rod 39a of a cylinder 39 mounted on the back side of the mounting plate 37 and the uppermost step. The bracket 41 fixed to the stopper member 36 is pivotally attached, and when the rod 39a of the cylinder 39 moves in and out, the uppermost stopper member 36 is shown by a solid line and a two-dot chain line in FIG. Rotate between each position. The stopper member 36 for the uppermost stage is provided on the inner side when the traverse table 5 that has descended to the descending end is retracted when the two rows of the angle steel C in the "one-pulled state" are stacked on the uppermost stage in a regular posture. The angle steel C arranged is the traverse table 5
It is a stopper member for preventing it from being dragged by retreating.

Next, the operation of the above-mentioned angle steel stacking device will be described. In FIG. 11, the long head chevron steel C is conveyed forward one by one by each of the first and second chain conveyors 1 and 2 constituting the conveyor A, and the end of the second chain conveyor 2 is conveyed. First placed in the section
Abutting on the positioning stopper 42, two subsequent angle steels C are successively conveyed, abutting on the first positioning stopper 42 and abutting on the leading angle steel C positioned,
The three angle steels C are in contact with each other and arranged in parallel. After that, the line drive shaft 11 rotates by a set angle to support the traverse base 5 and the support case 6
Is raised by a set amount, and as shown by the alternate long and short dash line in FIG. 11, a large number of traverse bases 5 supporting three rows of angle steel C reach the rising end. Next, the line drive shaft 13 is rotated by a set angle, and the traverse table 5 is stopped with respect to the stationary support case 6 as shown by a chain double-dashed line in FIG.
Moves along the horizontal direction to reach the forward end. In this way, when the traverse table 5 moves forward at the rising end and approaches the forward end, the first chevron steel C among the three rows of chevron steel C placed on the traverse table 5 is the second stopper member 3.
5, the traverse base 5 only advances by a predetermined amount and stops in a state where the three rows of the angle steel C are prevented from advancing. The action of the second stopper member 35 determines the forward end position of the angle steel C at the rising end position. In this state, in each of FIG. 4, FIG. 5 and FIG.
As shown by the dotted line, the ends of the three rows of chevron steel C have a pair of support levers 1 that form a double-end support device E.
It is arranged between the support portion 19a of the No. 9 and the holding tool 27. Then, in this state, when the line drive shaft 11 is rotated in the opposite direction to the set angle by a set angle, as shown by the three-dot chain line in FIG. 5 descends in synchronization with each other and reaches the descending end. Thus, while the traverse bases 5 reach the descending ends, both ends of the three rows of chevron steel C are supported by the pair of support levers 19 and transferred to the pair of support levers 19. After the traverse bases 5 reach the descending end, the cylinder 25 is operated to operate the pressing tool 27.
Is lowered to press the upper surfaces of the three rows of chevron steel C whose both ends are supported by the pair of support levers 19.

Since the angle steel C is long, the traverse bases 5 are lowered while transferring three rows of the angle steel C from the large number of traverse bases 5 to the pair of support levers 19 as described above. Then, the central portion of the angle steel C supported at both ends is largely bent by its own weight (see FIGS. 6 and 7).
Even in the state where each traverse base 5 reaches the lower end, as shown in FIG. 7, the central portion of the angle steel C having the largest deflection amount is supported by one or a plurality of traverse bases 5. . Each traverse stand 5 is at the forward end,
Moreover, when the line drive shaft 13 is rotated by a set angle and the traverse bases 5 are retracted in the state of being located at the descending end, the maximum bending portion of the angle steel C has one or more centrally arranged bending portions. The chevron steel C is dragged in the backward direction of the traverse table 5 because it is supported by the traverse table 5, but the chevron steel C on the side of the three rows of chevron steel C located at the forward end and the descending end. A plurality of first stopper members 34 are arranged (on the front side of the chevron steel C with respect to the conveying direction), and when the traverse table 5 is retracted, the three chevron steel C in three rows are moved by the first stopper members 34. The traverse table 5 is not dragged backward. When each traverse table 5 reaches the retracted end, as shown in FIG. 8, the angle steel C is supported by the pair of support levers 19 at both end portions thereof, and only the maximum bending portion at the center thereof has a large number. It is partially overlapped with the angle steel C immediately below which is supported by the support stand 17. In this state, one support lever 1
When the holding tool 27 of 9 is raised and the one supporting lever 19 is pivoted to the side by the cylinder 25, as shown in FIG. It is piled on the angle steel C, and then the other support lever 19
Also in the same manner, when it is rotated sideways, as shown in FIG. 10, the other support of the chevron steel C is also released, and the chevron steel C is entirely stacked on another chevron steel C immediately below. . As described above, when the angle steels C are dropped from the pair of support levers 19 and stacked, the end portion opposite to the first dropping side is pressed to the support portion 19a of the support lever 19 by the presser 27. 3 because it is attached
When one end of the angle steel C in the row is dropped, the other end is not displaced in the front-rear direction, so that the angle steel C can be reliably stacked due to the drop.

After stacking several rows of chevron steel C in a state where they are in contact with each other as described above, two rows of chevron steel C are inverted to the valleys of chevron steel C of three rows. Stack up with. That is, as shown in FIG.
Which is the end of the second chain conveyor 2 of
The second positioning stopper 43 arranged in front of the positioning stopper 42 rises to position the two rows of chevron steel C conveyed by the second chain conveyor 2. After that, when each reversing arm 31 is rotated by a set angle by the line drive shaft 33, two rows of angle steel C
Are attracted by the magnet plate 30 and are inverted as shown by the chain double-dashed line in FIG.
When the adsorption force of 0 is released, the two rows of chevron steel C in the inverted posture fall as they are, enter between the troughs of the chevron steel C of three rows stacked on each support stand 17, and are stacked. . 11 and 12, the line drive shaft 33 for reversing each reversing arm 31 and the shaft center of the sprocket 2a on which the second chain conveyor 2 is hung are coincident with each other. 2 chain conveyor 2
Is driven by another line drive shaft (not shown).

As described above, every time three rows of chevron steel C are stacked in a predetermined stage, two rows of chevron steel C are stacked in an inverted posture between the troughs of these three rows of chevron steel C, and To stack the upper layers, proceed as follows. That is, FIG.
As shown in FIG. 3, after the leading angle steel C conveyed by the conveying device A comes into contact with the first positioning stopper 42, the third positioning stopper arranged further in front of the second positioning stopper 43. 44 is projected and the second chevron steel C is attached to the third positioning stopper 4
4, the lifter device D is operated in this state to move the traverse base 5 at the rising end and further to the forward end. The traverse table 5 advances at the rising end position, and immediately before reaching the advance end position, the leading angle steel C abuts on the second stopper member 35 to stop the advance thereof, whereby the two rows of mountain shapes are formed. The gap between the steels C is narrower than the space between the two rows of the angle steel C at the time of being lifted from the second chain conveyor 2, and when the three rows of the angle steels C are in contact with each other, the gap between the steels 1 is 1 at the center. The so-called “one-pulled state” is the same as when a book is pulled out. In this state, as indicated by the chain double-dashed line in FIG.
By the operation of the cylinder 39, the uppermost stopper member 36, which has been avoided with respect to the falling path of the angle steel C, is rotated around the support shaft 38, and the stopper portion 36a is formed.
Is inserted into the gap between the two rows of chevron steel C in the “one-pulled state”. After that, when each traverse table 5 is lowered, both ends of the two rows of the angle steel C are supported by the pair of support levers 19 and transferred to this, just as in the case of the three rows of the angle steel. Listed. After that, the retainers 27 provided on the pair of support levers 19 are lowered, and the upper surfaces of the two rows of chevron steel C supported by the pair of support levers 19 are clamped. Then, in the state where each traverse base 5 reaches the lower end position, as shown by the two-dot chain line in FIG. Supported by the traverse table 5 of. Then, when each traverse base 5 is retracted in this state, the angle steel C arranged on the front side abuts the first stopper member 34 at the same time as in the case of the angle steel C in three rows. The angle steel C arranged on the back side abuts on the stopper member 36 for the uppermost stage, and both ends of the angle steel C in the two rows in the “one-pulled state” are pressed by the presser 27 from above. Since the pair of support levers 19 are supported in the pressed state, the two rows of chevron steel C in the “one-pull-out state” are
In each case, the traverse table 5 is maintained in the same position without being dragged in the backward direction. After that, in the same manner as in the case of the three rows of chevron steel C, the pair of support levers 19 supporting both ends of the two rows of chevron steel C are sequentially rotated to the side to support them. When it is removed, both ends of the two rows of chevron steel C are sequentially dropped, and the central one is missing, and as shown by the three-dot chain line in FIG. It is stacked on top of the angle steel C that is stacked on top (top). When the stacking of the uppermost stage is completed in this way, as shown by the chain double-dashed line in FIG. Keep it.

The above embodiment is a case of stacking three rows of chevron steel, but in the case of stacking four or five rows of chevron steel, in the case of four rows at the top, the central two In the case of five rows, one or three in the center are removed respectively, and even in this case, when the traverse table is retracted by using the uppermost stopper member according to the present invention. It is possible to prevent the angle steel arranged on the back side of the vehicle from being dragged in the backward direction (forward) of the traverse base. Therefore, the present invention relates to an automatic stacking apparatus for angle steel, in which the number of rows in one stage is not limited as long as the stacking is performed by removing the central one or more and leaving the two at both ends in the uppermost stage. It is possible to carry out regardless.

[0018]

As described above, according to the present invention, in the automatic stacking apparatus for the angle steel, the stopper member for the uppermost stage is arranged so as to be retractable with respect to the falling path of the angle steel from the both end supporting devices.
At the time of retreating the traverse stand, when the traverse table is retracted, when one or more of the several angle steels that are in contact with each other are extracted from the center and the two or more angle steels left at the two ends are stacked at the top The angle-shaped steel on the back side, whose both ends are supported by the device, comes into contact with the stopper member for the uppermost stage and cannot be dragged in the backward direction of the traverse table. There is. As a result, after retreating the traverse table, if the both ends of the angle steel supported by the both-ends support device are sequentially removed, the several rows of angle steel in the extracted state will drop as they are, and they will be stacked at the uppermost stage, and at the uppermost stage. It is possible to automatically stack a number of angled steels in the extracted state, and it is possible to automatically stack the angled steels of all stages including the top stage.

[Brief description of drawings]

FIG. 1 is a schematic plan view of an automatic stacker for angle iron according to the present invention.

FIG. 2 is a schematic front view showing only the main part of the same.

FIG. 3 is a side view of a traverse device B.

4 is a front view of a portion of one support lever 19 of the both-ends support device E. FIG.

FIG. 5 is a side view of the same.

FIG. 6 is an operation explanatory view showing a state in which both ends of the angle steel C are supported by the both-end supporting device E at the rising end position of the traverse table 5.

FIG. 7 is an operation explanatory view showing a state in which both end portions of the angle steel C are supported by the both-end supporting device E at the descending end position of the traverse table 5.

FIG. 8 is an operation explanatory view of a state where both ends of the angle steel C are supported by the both-end supporting device E when the traverse table 5 is retracted.

FIG. 9 is an operation explanatory view in a state where one of the angle steel C whose both ends are supported by the both end supporting device E is removed.

FIG. 10 is an operation explanatory view showing a state in which the chevron steels C whose both ends are supported by the both-ends support device E are unsupported and the chevron steels C are stacked on the support base 17.

FIG. 11 is an operation explanatory view for explaining the stacking order of the three-row chevron steel C.

FIG. 12 is an operation explanatory view for explaining the order of inverting and stacking the two rows of angle steel C;

FIG. 13 is an operation explanatory view for explaining the order of stacking the two rows of the angle steel C in the “one-pulled state” on the uppermost stage.

FIG. 14 is another explanatory view of the operation.

15 is a front view of the uppermost stopper member 36. FIG.

FIG. 16 is a schematic diagram showing a state in which three rows of chevron steel C are stacked and bound together with the topmost one being removed.

[Explanation of symbols]

 A: Conveying device B: Traverse device C: Angle steel D: Lifter device E: Both-ends supporting device F: Reversing device 1: First chain conveyor 2: Second chain conveyor 5: Traverse stand 16: Lifter unit 17: Support stand 19: Support lever 36: Uppermost stopper member

Claims (1)

[Claims] 1. A transport device for transporting a long chevron by arranging a number of chain conveyors in parallel at predetermined intervals, and a transport device for stacking several rows of chevron. The lifter device is connected to the terminal end of the lifter and is composed of a large number of lifter devices, each of which has a support base that can be moved up and down, and is disposed between each chain conveyor that constitutes the transport device. It consists of a large number of traverse bases, and each traverse base is synchronized to perform a rectangular motion, so that several rows of chevron steel that have been conveyed to the terminal end of the conveyance device are lifted and directly above the support base of the lifter device. And a pair of support levers that are rotatably arranged on both sides of the lifter device and are lifted by the traverse device to support the traverse device. Both ends supporting device for supporting and transferring both ends of several rows of chevron steel that have been transported to just above the holding table, and several rows of chevron steel that have been transported to the end of the transportation device are provided with a magnet plate. And a reversing device for reversing by suction with a reversing arm and stacking in a reversing posture on each trough of several rows of chevron piled on each support of the lifter device. After lifting several rows of chevron steel conveyed by each traverse table of the traverse device, horizontally moved to just above the support base of the lifter device, the both ends of the chevron steel of the several rows of the both-end support device. Each supporting lever is supported and transferred, and in this state, each supporting lever is sequentially rotated to the side to release the support, thereby sequentially dropping the end portions of the angle steel of the several rows, and the lifter device. The piles are sequentially stacked on each support base, and every time the stacking is performed several times, the angle steel is inverted by one row less than that at the time of the stacking by the reversing device, and several rows of the stacks stacked on each support base of the lifter device are inverted. In an automatic stacking device for chevron steel that stacks chevron steel in each trough of the chevron steel in an inverted position, one or more of the chevron steels in contact with each other in the center are extracted, leaving two at both ends. In order to stack a number of angled steels in the extracted state in the regular position on the top stage,
When the traverse bases of the traverse device are retracted in a state in which both ends of the several rows of the angled steel in the removed state are supported by the support levers of the both-end support device, when the traverse bases are retracted, An automatic stacking device for chevron steel, wherein an uppermost stopper member for preventing the chevron steel from being dragged toward the front side is arranged so as to be retractable with respect to the dropping path of the chevron steel from both end supporting devices.