JP6908269B2 - Angle steel stacking device - Google Patents

Description

The present invention relates to an apparatus for stacking angle steel.

In order to store long angle steel (also called angle lumber) in a manufacturing factory or the like, a plurality of angle steels are arranged horizontally and stacked in multiple layers vertically. In order to perform such stacking (stacking), a stacking device including a lifting magnet mechanism for lifting a plurality of angle steels conveyed by a conveyor by a magnetic force is known.

However, when the angle steel is made of stainless steel, for example, and is non-magnetic, stacking by the lifting magnet mechanism becomes impossible. Therefore, the stacking device described in Patent Document 1 has been proposed. This device is equipped with a mechanism for supporting and lifting angle steel from below, and this device allows a plurality of angle steels to be arranged in a horizontal direction, and a plurality of angle steels can be stacked on the angle steels.

Japanese Unexamined Patent Publication No. 2001-335153

FIG. 2 is a side view of the stacked angle steel A as viewed along the longitudinal direction thereof. When storing angle steel A, instead of stacking everything in a chevron posture with the top T on top, a V-shape with the top T on the bottom at a predetermined number of steps in the vertical direction (third step in FIG. 2). The posture is preferable from the viewpoint of preventing the load from collapsing. In FIG. 2, a crosshatch is attached to the angle steel A in the V-shaped posture.

In the stacking device described in Patent Document 1, angle steel cannot be stacked in a V-shaped posture as described above. Although not shown, a configuration is conceivable in which angle steel conveyed in an angled posture by a conveyor is inverted by a magnetic rotating arm, but this is not possible if the angle steel is non-magnetic.

Therefore, an object of the present invention is to provide a stacking device capable of stacking angle steel in a V-shaped posture at a predetermined number of steps without using a magnet mechanism.

The present invention is for stacking a plurality of angle steels in a horizontally arranged state in a chevron posture with the top facing up and in a plurality of stages vertically, and for stacking angle steels in a V-shaped posture with the top facing down at a predetermined number of steps. An intermediate stacking device, in which a conveyor that transports a plurality of the angle steels in the angle shape posture and the width direction of the angle steels as a transport direction and a plurality of the angle steels arranged side by side in the transport direction are placed. The mounting portion and the plurality of angle steels at predetermined positions on the conveyor can be transferred to the intermediate mounting portion, and the plurality of angle steels on the intermediate mounting portion are maintained in posture. When the transfer device capable of transferring to the downstream region and the plurality of angle steels to be stacked in the predetermined number of stages are transferred to the intermediate mounting portion, the plurality of angle steels are transferred from the angle shape posture. A posture-changing member in which one flange of the angle steel is changed to an L-shaped posture in which it is located below and mounted on the intermediate mounting portion, and a plurality of the above-mentioned members transferred to the downstream region by the transfer device. Both ends of the angle steel in the longitudinal direction can be supported from below, and a slider that drops the plurality of angle steels when they move in the longitudinal direction of the angle steel and move away from the ends, and a slider that drops from the slider. The slider is provided with a stacker that receives the plurality of angle steels and stacks the angle steels in a plurality of stages vertically, and the slider has a plurality of convex portions that allow the angle steels to be placed in the angle shape by arranging a plurality of protrusions in the transport direction. It is provided with a receiving member that allows the angle steel to be placed in the V-shaped posture between the adjacent convex portions.

According to this stacking device, when a plurality of angle steels conveyed in a chevron posture by a conveyor are conveyed to the downstream region in a chevron posture through an intermediate mounting portion by a transfer device, these angle steels are angled. When the slider is supported by the receiving member (convex portion) of the slider in the posture and then the slider is separated from the end portion of these angle steels, these angle steels are placed on the stacker in the angle shape posture. Further, a plurality of angle steels having a predetermined number of stages are conveyed in an angled posture by a conveyor, and when transferred to an intermediate mounting portion by a transfer device, they are changed to an L-shaped posture and mounted on the intermediate mounting portion. Placed. Then, when the steel is transported from the intermediate mounting portion to the downstream region in the L-shaped posture by the transfer device, each angle steel is supported in the V-shaped posture between the adjacent convex portions of the receiving members of the slider, and then. When the slider is separated from the end of these angle steels, these angle steels are in a V-shaped posture and are placed on the angle steels in the angle shape already on the stacker. As described above, even if a magnet mechanism is not used, the angle steels can be stacked in a state of being arranged in a plurality of rows in the horizontal direction and in a plurality of stages vertically, and the angle steels can be stacked in a V-shaped posture at a predetermined number of stages.

Further, the posture changing member has a plurality of combs whose tips are in contact with the lower surface of the flange of the angle steel in the angled posture, which can be raised and lowered, and the combs are in the ascending position and are in the middle. The tip of the angle steel may protrude above the mounting surface of the angle steel in the mounting portion and come into contact with the lower surface of the angle steel in the angled posture.
According to this configuration, when a plurality of angle steels to be stacked in the predetermined number of stages are transferred to the intermediate mounting portion by the transfer device, the tip of the comb protrudes above the mounting surface of the intermediate mounting portion. When the comb comes into contact with the lower surface of the flanges of these angle steels, the angle steels rotate to change their posture to an L-shaped posture and are placed on the mounting surface of the intermediate mounting portion.

Further, the transfer device includes an arm member that performs an operation including a component in the vertical direction and a component in the transport direction, and the arm member holds a plurality of angle steels at a predetermined position on the conveyor from below. It is configured to have an upstream arm portion that can be scooped up and mounted, and a downstream arm portion that can be scooped up from below and mounted on the plurality of angle steels on the intermediate mounting portion. Can be done.
According to this configuration, a plurality of angle steels in a predetermined position on the conveyor can be transferred to the intermediate mounting portion, and a plurality of angle steels on the intermediate mounting portion can be maintained in a posture in the downstream region. A configuration that can be transferred to is obtained.

According to the present invention, angle steel can be stacked in a V-shaped posture at a predetermined number of steps without using a magnet mechanism.

It is a side view which shows an example of the stacking apparatus of angle steel of this invention. It is a side view which looked at the stacked angle steel along the longitudinal direction. It is a top view of the stacking apparatus. It is explanatory drawing of the stacking operation performed by a stacking apparatus. It is explanatory drawing of the stacking operation performed by a stacking apparatus. It is explanatory drawing of the stacking operation performed by a stacking apparatus. It is explanatory drawing of the stacking operation performed by a stacking apparatus. It is explanatory drawing of the stacking operation performed by a stacking apparatus. It is explanatory drawing of the stacking operation performed by a stacking apparatus. It is explanatory drawing of the stacking operation performed by a stacking apparatus. It is explanatory drawing of the stacking operation performed by a stacking apparatus. It is explanatory drawing of the stacking operation performed by a stacking apparatus.

FIG. 1 is a side view showing an example of the angle steel stacking device of the present invention. In order to store long (for example, 6 m) angle steel in a manufacturing plant or the like, the stacking device 10 shown in FIG. 1 has a plurality of angle steel A arranged horizontally and vertically on the stacker 16. Performs an operation for stacking (that is, stacking). The angle steel A has two flanges F (see FIG. 2) that are orthogonal to each other, and is also called an angle lumber.

FIG. 2 is a side view of the stacked angle steel A as viewed along the longitudinal direction thereof. In order to prevent the stacked angle steel A from collapsing, all the angle steel A is not stacked in a posture in which the top T is on the top, but a predetermined number of steps in the vertical direction (three steps from the bottom in this embodiment). In the eye), the posture is such that the top T is on the bottom. In the following, the posture in which the top T of the angle steel A is on the top (as in the first and second steps from the bottom) is called the "mountain posture", and the top of the angle steel A (as in the third step from the bottom). The posture in which T is down is called a "V-shaped posture". In FIG. 2, a crosshatch is attached to the angle steel A in the V-shaped posture. As described above, the stacking device 10 can stack a plurality of angle steels A in a horizontally arranged state and in a plurality of layers vertically, and can stack the angle steels A in a V-shaped posture at a predetermined number of stages. Further, in the following description, there is an "L-shaped posture" with respect to the posture of the angle steel A. As shown in FIG. 9B, this L-shaped posture is a posture in which one flange F of the angle steel A is located below and the other flange F is upright on the intermediate mounting portion 12. ..

Although the angle steel A is shown only up to the fourth stage in FIG. 2, the angle steel A is stacked in the fifth or higher stages, and the stacking device 10 of the present embodiment V-shapes the angle steel A for each predetermined number of stages. Stack as a posture. Further, in FIG. 2, three angle steels A in an angled posture (two in a predetermined number of stages) are used as one set to form one stage, but the number of steels A to be included in one set according to the size of the angle steel A. (Number of pieces in one stage) can be changed, and as the size becomes smaller, the number of pieces included in one set increases.

In FIG. 1, the stacking device 10 includes a conveyor 11, an intermediate mounting portion 12, a transfer device 13, a posture changing member 14, a slider 15, and a stacker 16.

The conveyor 11 transports a plurality of angle steels A side by side in the transport direction with the width direction (longitudinal direction) of the angle steel A as the transport direction. Hereinafter, the transport direction of the angle steel A is simply referred to as a “transport direction”, and in FIG. 1, the transport direction is a direction from left to right. All the angle steel A conveyed by the conveyor 11 are in the angle shape posture. FIG. 3 is a plan view of the stacking device 10. In FIG. 3, angle steel A is shown by a chain double-dashed line. A plurality of conveyors 11 are provided along the longitudinal direction of the angle steel A, and these are arranged in parallel. Although the conveyor 11 of the present embodiment is composed of a chain conveyor, it may be another type of conveyor.

In FIG. 1, the intermediate mounting portion 12 is composed of a fixing member long along the transport direction. As shown in FIG. 3, a plurality of intermediate mounting portions 12 are provided along the longitudinal direction of the angle steel A, and these are arranged in parallel. With this configuration, the intermediate mounting portion 12 can mount a plurality of angle steels A in a state of being arranged in the transport direction. In the intermediate mounting portion 12, for example, a process of aligning the end portions 7 of the plurality of angle steel A mounted on the mounting surface 25 may be performed.

In FIG. 1, the transfer device 13 includes an arm member 17 that is long along the transfer direction. The arm member 17 has an upstream arm portion 18 located on the upstream side in the transport direction and a downstream arm portion 19 located on the downstream side in the transport direction. As shown in FIG. 3, a plurality of arm members 17 are provided along the longitudinal direction of the angle steel A, and these are arranged in parallel. A plurality of angle steels A (three or two in the present embodiment) can be placed on the upstream arm portion 18, and at the same time, a plurality of different downstream arm portions 19 (3 in the present embodiment) can be mounted. A book or two) angle steel A can be placed. The plurality of arm members 17 are configured to move synchronously by a transfer actuator (not shown), and move the angle steel A on which the arm member 17 is placed downstream in the transport direction. In FIG. 1, the movement locus of the end portion 17a on the downstream side in the transport direction of the arm member 17 is indicated by an arrow K by a two-dot chain line. As shown by the arrow K, the arm member 17 performs a cycle operation (reciprocating operation) including a component in the vertical direction and a component in the transport direction. Regarding this cycle operation, as shown by the arrow K, the arm member 17 may move forward after ascending, then descend and retreat, but may move forward while ascending, and then move forward. You may move forward while descending, and finally retreat. As will be described later, this cycle operation is repeated.

The states shown in FIGS. 1 and 3 are states in which the arm member 17 is located in the most upstream region in the transport direction. In this state, the upstream arm portion 18 and the predetermined position P1 of the conveyor 11 are chevron-shaped. The arrangement is such that the steel A overlaps in the longitudinal direction, and the downstream arm portion 19 and the intermediate mounting portion 12 overlap in the longitudinal direction of the angle steel A. The region in which the upstream arm portion 18 overlaps the predetermined position P1 of the conveyor 11 is referred to as the upstream region Q1.
On the other hand, when the arm member 17 is located in the most downstream region in the transport direction, the upstream arm portion 18 and the intermediate mounting portion 12 are arranged so as to overlap in the longitudinal direction of the angle steel A, and are downstream. The side arm portion 19 and the slider 15 are arranged so as to overlap each other in the longitudinal direction of the angle steel A. The region in which the downstream arm portion 19 overlaps the slider 15 is referred to as the downstream region Q2.

When the arm portion 17 (arm portion 17 in the state shown in FIG. 1) rises from the state where the upstream side arm portion 18 is in the upstream side region Q1, the upstream side arm portion 18 is moved to a predetermined position P1 on the conveyor 11. A plurality (three) angle steels A can be scooped up from below and placed on the upstream arm portion 18. At the same time, the downstream arm portion 19 can scoop up a plurality of (three) angle steels A on the intermediate mounting portion 12 from below and mount them on the downstream arm portion 19. Then, by moving the arm member 17 to the downstream side in the transport direction, a plurality of (three) angle steels A mounted on the upstream arm portion 18 can be moved onto the intermediate mounting portion 12. At the same time, a plurality of (three) angle steels A mounted on the downstream arm portion 19 can be moved onto the slider 15.

In this way, the transfer device 13 can transfer the plurality of angle steel A at the predetermined position P1 on the conveyor 11 to the intermediate mounting portion 12, and the plurality of angle steel A on the intermediate mounting portion 12 downstream. It can be transferred to the side area Q2. When the angle steel A in the angled posture on the conveyor 11 is transferred to the intermediate mounting portion 12 by the upstream arm portion 18, the angled posture is maintained as it is in the normal operation.
However, when the posture changing member 14 described later is made to function (that is, when the posture changing operation is performed), the posture of the angle steel A is changed from the angled posture to the L-shaped posture by the attitude changing member 14, and the angle shape is changed. Steel A is transferred to the intermediate mounting portion 12. On the other hand, when the posture changing member 14 does not function, the angle steel A is transferred to the intermediate mounting portion 12 while maintaining the angle shape.
Further, when the angle steel A on the intermediate mounting portion 12 is transferred to the downstream region Q2 by the downstream arm portion 19, the posture of the angle steel A is maintained. That is, if the angle steel A is mounted in the angled posture on the intermediate mounting portion 12, the angle steel A is transferred as it is by the downstream arm portion 19 in the angled posture, and the angle steel A is in the L-shaped posture. If it is placed in, the angle steel A is transferred by the downstream arm portion 19 as it is in an L-shaped posture.

The posture changing member 14 can be raised and lowered by a (first) actuator for raising and lowering (not shown). As shown in FIG. 3, a plurality of posture changing members 14 are provided along the longitudinal direction of the angle steel A, and these are arranged in parallel. Further, the posture changing member 14 is provided adjacent to the intermediate mounting portion 12 in the longitudinal direction of the angle steel A. In FIG. 1, the posture changing member 14 has a plurality of combs 20 and a connecting member 22 connecting the combs 20. The comb 20 is composed of members that are long in the vertical direction. The number of combs 20 is the same as the maximum number of angle steel A transferred on the upstream arm portion 18, that is, the maximum number of angle steel A simultaneously mounted on the intermediate mounting portion 12 (Fig. Example). Then three).

FIG. 1 shows a state in which the posture changing member 14 is lowered. In this state, the tip 21 of the comb 20 is located below the mounting surface 25 of the angle steel A in the intermediate mounting portion 12. There is. At a predetermined timing, the posture changing member 14 is raised by the actuator, and the comb 20 is in the raised position (see FIG. 9A), and the tip 21 is projected above the mounting surface 25. Become. The predetermined timing is the timing at which the plurality of angle steel A to be stacked in the predetermined number of stages (third stage in FIG. 2) is transferred to the intermediate mounting portion 12 by the transfer device 13. With the comb 20 in the raised position, the tip 21 protruding above the mounting surface 25 is placed on the lower surface of the flange F of the angle steel A in the chevron posture transferred on the upstream arm portion 18. Contact. While the comb 20 stays in the ascending position, the upstream arm portion 18 continues to descend. Therefore, the angle steel A in the chevron posture transferred on the upstream arm portion 18 is the comb 20. When they come into contact with each other, they rotate with one of the flanges F facing down, and are placed on the mounting surface 25 of the intermediate mounting portion 12 in an L-shaped posture. In this way, the posture changing member 14 has a chevron posture when a plurality of (two) angle steels A to be stacked in a predetermined number of steps (third step in FIG. 2) are transferred to the intermediate mounting portion 12. Can be changed to an L-shaped posture and mounted on the intermediate mounting portion 12.

In FIG. 1, the slider 15 is configured to have a member (receiving member 23) extending along the transport direction and arranged in parallel. The slider 15 is provided in the downstream side region Q2, and is located at a position corresponding to both end portions 7 and 7 (see FIG. 3) in the longitudinal direction of the angle steel A transferred by the downstream side arm portion 19. The slider 15 can be reciprocated in the longitudinal direction of the angle steel A by an actuator (not shown). That is, the pair of sliders 15 and 15 may be in a state of being close to each other (state shown in FIG. 3) or in a state of being separated from each other. When the pair of sliders 15 are close to each other, the distance between them is smaller than the length dimension of the angle steel A. Therefore, when the pair of sliders 15 and 15 are close to each other, the sliders 15 and 15 can support the angle steel A from below. On the other hand, when the pair of sliders 15 and 15 are separated from each other in the longitudinal direction of the angle steel A, the distance between them is larger than the length dimension of the angle steel A. Therefore, when the pair of sliders 15 change from the approaching state to the distant state, the angle steel A supported by the sliders 15 and 15 from below can be dropped.

In FIG. 1, the slider 15 includes a receiving member 23. The receiving member 23 has a plurality of convex portions 24 arranged side by side in the transport direction. The number of the convex portions 24 is the same as the maximum number of angle steels A transferred by the downstream arm portion 19 (three in the figure). Each convex portion 24 has a convex shape corresponding to the shape of the angle steel A in the angled posture, and the angle steel A can be placed as the angled posture, and the posture can be restrained and held. can. Further, in the receiving member 23, the space between the pair of adjacent convex portions 24 is concave, and this concave shape corresponds to the shape of the angle steel A in the V-shaped posture. Therefore, the angle steel A can be placed in a V-shaped posture between the pair of adjacent convex portions 24, 24, and the posture can be restrained and held.

As described above, the slider 15 can support both ends 7 and 7 sides (see FIG. 3) in the longitudinal direction of the plurality of angle steel A transferred to the downstream region Q2 by the transfer device 13 from below. Further, after the slider 15 is supported in this way, when the angle steels A are moved in the longitudinal direction and separated from the ends 7 and 7, the plurality of supported angle steels A can be dropped.

The stacker 16 is composed of members extending along the transport direction. As shown in FIG. 3, a plurality of stackers 16 are provided along the longitudinal direction of the angle steel A, and these are arranged in parallel. The stacker 16 receives the angle steel A falling from the slider 15 and stacks the angle steel A in a plurality of stages vertically. The stacker 16 can be raised and lowered by a (second) actuator for raising and lowering (not shown). By changing the height of the stacker 16, the drop height of the angle steel A from the slider 15 is adjusted.

The stacking operation performed by the stacking device 10 having the above configuration will be described with reference to FIGS. 4 to 12.
As shown in FIG. 4A, when the angle steel A in the angled posture is conveyed by the conveyor 11 and reaches the predetermined position P1, the arm portion 17 waiting on the most upstream side (initial position) in the conveying direction is moved. Start the operation (rise). As a result, as shown in FIG. 4B, the upstream arm portion 18 scoops up these angle steels A from below and transfers them to the downstream side in the transport direction (intermediate mounting portion 12 side). These angle steels A are called the first set G1.

As shown in FIG. 5A, when the arm member 17 moves downstream in the transport direction, the upstream arm portion 18 is positioned lower than the mounting surface 25 of the intermediate mounting portion 12, and the first set G1 The angle steel A of No. 1 is placed on the intermediate mounting portion 12. After that, as shown in FIG. 5B, the arm member 17 returns to the initial position. Even while the arm member 17 is operating as described above, the conveyor 11 is still driving and conveys the next angle steel A (angle steel A of the second set G2) to the predetermined position P1.

When the arm member 17 returning to the initial position operates, the upstream arm portion 18 scoops up the angle steel A of the second set G2 from below, and as shown in FIG. 6 (A), the downstream side (intermediate mounting) in the transport direction. Transfer to section 12 side). At the same time, the angle steel A of the first set G1 mounted on the intermediate mounting portion 12 is scooped up by the downstream arm portion 19 from below and transferred to the downstream region Q2 side. As shown in FIG. 6B, when the downstream side arm portion 19 moves to the downstream side region Q2, the upstream side arm portion 18 becomes a position lower than the mounting surface 25 of the intermediate mounting portion 12, and the upstream side arm portion 18 The angle steel A of the second set G2 mounted on the portion 18 is mounted on the intermediate mounting portion 12. Further, the downstream arm portion 19 is located at a position lower than the receiving member 23 of the slider 15, and the angle steel A of the first set G1 mounted on the downstream arm portion 19 is placed on the receiving member 23.

After that, as shown in FIG. 7A, the arm member 17 returns to the initial position. Further, as shown in FIG. 7B, the slider 15 moves in the longitudinal direction of the angle steel A, and the angle steel A of the first set G1 mounted on the receiving member 23 is dropped onto the stacker 16. .. As a result, the angle steel A of the first set G1 can be stacked on the stacker 16 as the first stage. As shown in FIGS. 6 and 7, the conveyor 11 is still driving while the arm member 17 and the slider 15 are operating, and the next angle steel A (angle steel A of the third set G3) is further determined. Transport to position P1.

The angle steel A of the third set G3 is conveyed by the conveyor 11 in an angled posture, but is to be placed on the stacker 16 in a V-shaped posture which is the opposite posture. The number of angle steel A in the third group G3 is one less than that of the angle steel A group (first group G1, second group G2) placed on the stacker 16 in an angled posture, and the number is adjusted in this way. Then, the angle steel A is conveyed to the predetermined position P1 of the conveyor 11.

When the arm member 17 returning to the initial position operates, as shown in FIG. 8 (A), the upstream arm portion 18 scoops up the angle steel A of the third group G3 from below and is placed on the downstream side (intermediate mounting) in the transport direction. Transfer to section 12 side). At the same time, the angle steel A of the second set G2 mounted on the intermediate mounting portion 12 is scooped up from below by the downstream arm portion 19 and transferred to the downstream region Q2 side.

As shown in FIG. 8 (B), before the angle steel A of the third set G3 transferred by the upstream arm portion 18 arrives at the intermediate mounting portion 12, the posture changing member 14 rises and the comb 20 Is in the ascending position. By continuing the operation of the arm member 17 with the comb 20 in the raised position, as shown in FIG. 9A, the flange of the angle steel A of the third set G3 mounted on the upstream arm portion 18 The tip 21 of the comb 20 comes into contact with the lower surface of F. Then, the angle steel A of the third set G3 descends together with the upstream arm portion 18 while rotating, and is placed on the mounting surface 25 of the intermediate mounting portion 12 in an L-shaped posture. The plurality of combs 20 are provided at intervals in the transport direction, and the intervals are wider than those of the angle steel A. Therefore, one angle steel A is placed on the mounting surface 25 in an L-shaped posture between the adjacent combs 20 and 20. After that, as shown in FIG. 9B, the posture changing member 14 descends.

Further, as shown in FIG. 9A, the angle steel A of the third set G3 mounted on the upstream arm portion 18 is rotated and mounted on the intermediate mounting portion 12, and at the same time, mounted on the downstream arm portion 19. The angle steel A of the second set G2 that has been used is placed on the receiving member 23 of the slider 15. After that, as shown in FIG. 9B, the arm member 17 returns to the initial position.

Further, as shown in FIG. 10A, the slider 15 moves in the longitudinal direction of the angle steel A, and the angle steel A of the second set G2 mounted on the receiving member 23 is dropped onto the stacker 16. .. As a result, the angle steel A of the second set G2 can be stacked on the stacker 16 as the second stage. As shown in FIGS. 9 and 10 (A), the conveyor 11 is still driven while the arm member 17, the posture changing member 14, and the slider 15 are operating, and the next angle steel A ( The angle steel A) of the fourth set G4 is conveyed to the predetermined position P1.

As shown in FIG. 10B, when the arm member 17 returning to the initial position operates, the upstream arm portion 18 scoops up the angle steel A of the fourth group G4 from below and is placed on the downstream side (intermediate mounting) in the transport direction. Transfer to section 12 side). At the same time, the angle steel A of the third set G3, which has been mounted in the intermediate mounting portion 12 in an L-shaped posture, is scooped up from below by the downstream arm portion 19 and transferred to the downstream region Q2 side.

FIG. 11A shows a state in which the angle steel A of the third group G3 transferred on the downstream arm portion 19 has reached the upper position of the receiving member 23 of the slider 15. The posture of these angle steels A when the angle steels A of the third group G3 are transferred by the downstream arm portion 19 is maintained in the L-shaped posture. Then, as shown in FIG. 11B, when the arm member 17 moves to the downstream side in the transport direction, the upstream arm portion 18 becomes a position lower than the mounting surface 25 of the intermediate mounting portion 12, and is upstream of the mounting surface 25. The angle steel A of the fourth set G4 mounted on the side arm portion 18 is mounted on the intermediate mounting portion 12. Further, the downstream arm portion 19 is located at a position lower than the receiving member 23 of the slider 15, and the angle steel A of the third set G3 in the L-shaped posture mounted on the downstream arm portion 19 is placed on the receiving member 23. Will be done. At this time, in the angle steel A of the third set G3 which was in the L-shaped posture, a part of the flange F comes into contact with the convex portion 24 of the receiving member 23 and makes a small rotation, forming a V-shaped posture and adjacent convex. It is placed between the parts 24 and 24, and the posture is restrained. After that, as shown in FIG. 12A, the arm member 17 returns to the initial position.

Further, as shown in FIG. 12B, the slider 15 moves in the longitudinal direction of the angle steel A, and the angle steel A of the third set G3 mounted on the receiving member 23 is dropped onto the stacker 16. .. Since the angle steel A of the third set G3 was in the V-shaped posture in the receiving member 23, it falls in the same posture. As a result, the angle steel A of the third set G3 can be stacked on the stacker 16 in a V-shaped posture as the third stage.

After that, although not shown, the operation of the arm member 17 transfers the angle steel A of the fourth set G4 mounted on the intermediate mounting portion 12 to the receiving member 23 of the slider 15, and the slider 15 moves. By doing so, the angle steel A of the fourth group G4 can be dropped and stacked on the angle steel A of the third group G3 in an angled posture as the fourth stage.

As described above, according to the stacking device 10 of the present embodiment, as shown in FIGS. 4 to 9, a plurality of angle steels A transported in a chevron posture by the conveyor 11 are intermediately mounted by the transfer device 13. When they are conveyed to the downstream region Q2 in the chevron posture via the placement portion 12, these angle steels A (for example, the chevron steels A of the first set G1 and the second set G2 in the above embodiment) are sliders in the chevron posture. The slider 15 is supported by the receiving member 23 (convex portion 24) of the fifteen, and then the slider 15 is separated from the end portion 7 of the angle steel A, so that the angle steel A is placed on the stacker 16 in an angled posture.
Further, a plurality of angle steels A having a predetermined number of stages (in the above embodiment, angle steels A of the third set G3) are conveyed in an angle shape by the conveyor 11, and further, the intermediate mounting portion 12 is conveyed by the transfer device 13. As shown in FIG. 9, it is changed to the L-shaped posture and placed on the intermediate mounting portion 12. Then, when the transfer device 13 transfers the angle steel A from the intermediate mounting portion 12 to the downstream region Q2 in an L-shaped posture, each angle steel A is placed between the adjacent convex portions 24, 24 of the receiving member 23 of the slider 15. Is supported in a V-shaped posture (see FIGS. 11 (b) and 12 (a)). After that, when the slider 15 is separated from the end portion 7 of the angle steel A, the angle steel A is in a V-shaped posture and is placed on the angle steel A in the angle shape already mounted on the stacker 16. (See FIG. 12 (b)).
As described above, according to the stacking device 10 of the present embodiment, a plurality of angle steels A are stacked in a horizontal direction in a chevron posture without using a magnet mechanism, and a plurality of stacks are stacked vertically and at a predetermined number of stages. Then, angle steel A can be stacked as a V-shaped posture. Further, since the magnet mechanism is not required, the configuration of the stacking device 10 is simplified.

In FIG. 1, the number of combs 20 included in the posture changing member 14 and the number of convex portions 24 of the receiving member 23 included in the slider 15 are changed according to the number of angle steel A included in the set. This change can be realized by exchanging the posture changing member 14 and the receiving member 23.

The embodiments disclosed as described above are exemplary in all respects and are not restrictive. That is, the stacking device of the present invention is not limited to the illustrated form, and may be another form within the scope of the present invention. In the above embodiment, the case where a plurality of angle steels A are mounted on the arm member 17 of the transfer device 13 on the upstream side and the downstream side respectively has been described, but in the intermediate region between the upstream side and the downstream side. Also, a plurality of angle steel A can be mounted, and further, two mounting surfaces 25 of the intermediate mounting portion 12 are provided in the transport direction, and the transfer device 13 provides a set (group) of the plurality of angle steel A in the transport direction. Even if it is configured to be transferred from the first mounting surface 25 on the upstream side to the second mounting surface 25 on the downstream side in the transport direction, and then transferred to the downstream region Q2 where the slider 15 is installed. good.

7: End 10: Stacking device 11: Conveyor 12: Intermediate mounting part 13: Transfer device 14: Posture change member 15: Slider 16: Stacker 17: Arm member 18: Upstream arm part 19: Downstream arm part 20: Comb 21: Tip 23: Receiving member 24: Convex 25: Mounting surface A: Angle steel F: Flange T: Top P1: Predetermined position

Claims (2)

A stacking device for stacking angle steel in a V-shaped posture with the top facing down, while stacking multiple angle steels in a horizontal arrangement and stacking them vertically at a predetermined number of stages. There,
A conveyor that conveys a plurality of the angle steels in the angle shape posture and the width direction of the angle steels as the transfer direction.
An intermediate mounting portion for mounting a plurality of angle steels arranged side by side in the transport direction, and an intermediate mounting portion.
The plurality of angle steels at predetermined positions on the conveyor can be transferred to the intermediate mounting portion, and the plurality of angle steels on the intermediate mounting portion are transferred to the downstream region while maintaining the posture. With possible transfer devices
When the plurality of angle steels to be stacked in the predetermined number of stages are transferred to the intermediate mounting portion, one flange of the angle steels is located below the plurality of angle steels from the angle posture. A posture changing member that is changed to an L-shaped posture and placed on the intermediate mounting portion,
When the plurality of angle steels transferred to the downstream region by the transfer device can support both ends in the longitudinal direction of the angle steel from below and move in the longitudinal direction of the angle steel and move away from the ends. A slider for dropping the plurality of angle steels and
A stacker that receives a plurality of the angle steels falling from the slider and stacks the angle steels in a plurality of stages vertically.
With
The slider has a plurality of convex portions that allow the angle steel to be placed in the angled posture in the transport direction, and the angle steel is placed between the adjacent convex portions in the V-shaped posture. Equipped with a receiving member that can be placed ,
The transfer device includes an arm member that performs an operation including a component in the vertical direction and a component in the transfer direction.
The arm member includes an upstream arm portion that allows the plurality of angle steels at predetermined positions on the conveyor to be scooped up from below and placed on the conveyor, and a plurality of angle steels on the intermediate mounting portion from below. A stacking device for angle steel having a downstream arm portion that can be scooped up and placed. The posture changing member has a plurality of combs whose tips are in contact with the lower surface of the flange of the angle steel that can be raised and lowered and is in the angled posture.
Claim that the comb is in an elevated position and the tip of the comb protrudes above the mounting surface of the angle steel in the intermediate mounting portion and comes into contact with the lower surface of the angle steel in the angle position. The angle steel stacking device according to 1.

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