JPH07100538B2 - Stacking equipment for long materials - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a stacking apparatus for stacking long materials having a circular outer diameter cross section such as rods and pipes in a hexagonal shape.

[Conventional technology]

Long materials such as round bars and steel pipes having a circular outer diameter cross section are often bundled in a hexagonal shape and shipped. For this binding, conventionally, JP-A-54-49770, JP-B-57-59172,
A stacking device as disclosed in JP-A-57-77122 is used.

All of the conventional stacking devices are configured such that a plurality of long materials are stacked in the material storage unit while changing the number of each one by one. It is roughly divided into two types: one that descends step by step, and one in which the material container is in a fixed position and an elevating platform on which a long material is placed descends to a position according to the step. And,
The stacking device disclosed in JP-A-54-49770 and JP-B-57-59172 is classified as the former, and the stacking device disclosed in JP-A-57-77122 is classified as the latter.

[Problems to be Solved by the Invention]

Among the conventional stacking devices classified as the former, the material storage unit itself for storing long materials in a stacked state descends, and thus a large amount of energy is required to drive the material storage unit. Further, there is a problem in that a large installation area is required because the material container moves obliquely when descending.

In comparison with this, in the stacking device classified as the latter, since the housing is fixed and the elevating platform on which one stage of long material is placed only descends, the elevating drive energy is small and the installation area is also small. Although it is small and has an advantage, it also has a problem that the long material is damaged and its alignment is disturbed.

That is, the stacking device classified into the latter, as shown in FIG. 7, has a material container 1 for accommodating the long members 30 in a stacked state, and a long member 30 traversing the material container 1 It comprises a carry-in section 2 for carrying. The material storage part 1 is fixed and has a first fixed support member 61 forming a bottom surface, second fixed support members 62, 62 forming an inverted "C" -shaped slope on the bottom surface, and the material storage part 1
On the downstream side of the inside, there is provided a third fixed support member 63 which is combined with the above-mentioned slope to form a "V" -shaped slope. The material carrying-in section 2 is provided with an elevating platform 64 having a descending slope, and by elevating the elevating platform 64 with a predetermined number of the long materials 30 placed on the descending slope of the elevating platform 64, the long material 30 Are stacked in the material storage unit 1 while being guided to the V-shaped slope on the downstream side.

Until the long material 30 reaches the upper end height of the second fixed support member 62 in the material accommodating portion 1, the long material 30 on the elevating platform 64 is in the third position.
It is guided by the fixed support member 63 and once moved to the downstream side, and then pushed back to the upstream side by the second fixed support member 62. It is when the long members 30 are pushed back to the upstream side that the contact portions of the materials are flawed or the alignment state is disturbed to hinder the stacking.

The present invention relates to a stacking device for lowering a long material on an elevating platform, preventing the elongate material on the elevating platform from being pushed back to the upstream side, damaging the long material, or aligning the long material. It is an object of the present invention to provide a stacking device that can prevent disorder.

[Means for Solving the Problems]

The stacking device of the present invention comprises a material storage unit for storing a plurality of long materials in a stacked state and a material loading unit for laterally loading the long materials into the material storage unit. Has
A first fixed bearing member that forms a bottom surface and a second fixed bearing member that forms an inverted "C" -shaped slope are provided above the first fixed support member, and is combined with the slope on the downstream side in the material storage unit. It is equipped with a movable support member capable of moving up and down having a skirt-expanding slope forming a "V" -shaped slope and a vertical surface extending above the slope. There is provided an elevating platform for placing the material and for simultaneously lowering the plurality of long materials while contacting the most downstream long material with the vertical surface of the movable bearing member and the skirt spreading slope below the movable bearing member.

[Action]

In the stacking device of the present invention, the support member having the skirt-expanding slope that is combined with the slope of the second fixed support member and forms a "V" -shaped slope on the downstream side in the material storage unit is movable in the vertical direction. And, it has a vertical surface above the skirt where the skirt spreads. Therefore, when stacking long materials between the inverted "C" -shaped slopes of the second fixed support member, a height of one step of material should be secured below the vertical surface of the movable support member. The long material that is placed on the movable platform and descends has no material movement in the upstream and downstream directions while being guided by the vertical surface, and when it descends to the height of the skirt spreading slope, it is downstream along the slope. Move to the side and stack. When the movable bearing member is moved up by one step height each time it is stacked one by one, the long material does not go back to the upstream side while increasing the number between the inverted "C" shaped slopes. Stacked.

〔Example〕

 Hereinafter, the present invention will be described in detail with reference to examples thereof.

FIG. 1 is a plan view showing the overall layout of an example of a stacking apparatus embodying the present invention, and FIG. 2 is a side view.

The stacking apparatus of the present invention comprises a plurality of material storage portions 1 arranged at predetermined intervals and a plurality of material loading portions 2 arranged in parallel to the arrangement line. A plurality of conveyor rollers 3 are provided outside the material carry-in section 2 along the installation line. The long material 30 to be stacked is the conveyor roller 3
Is conveyed in the longitudinal direction to the vicinity of the material carry-in section 2, traverses from here, enters the material carry-in section 2, and is stacked in the material accommodating section 1.

FIG. 3 is a side view showing the material storage unit 1, FIGS. 4 (a) and 4 (b) are a front view and a side view showing the material loading unit 2, and FIGS. 2 to 3 and 4 ( In b), the long material runs from right to left.

As shown in FIGS. 1 to 3, the material storage unit 1 includes vertical posts 5 arranged side by side on a horizontal base 4.
An L-shaped support base 6 is provided on the lower portion of the post 5 so as to project toward the upstream side. The support base 6 detachably holds a right-angled triangular fixed support member 7, and the fixed support member 7 held by the support base 6 has its hypotenuse facing the upstream side.

An L-shaped support base 8 is movably provided in the upstream and downstream directions on the base 4, and a right-angled triangular fixed support member 9 is detachably held on the support base 8 with its hypotenuse facing the downstream side. ing. The fixed bearing members 7 and 9 are the above-mentioned second fixed bearing members, and the opposite oblique sides thereof form the inverted "C" -shaped slopes 7a and 9a. The first fixed bearing member forming the bottom surface has a bottom surface L between the adjacent material accommodating portions 1.
-It is arranged so as to coincide with the L line.

A horizontal screw 10 is also screwed onto the support base 8. On the base 4, there is a motor shared by the material storage units 1.
11 (Fig. 1) is provided and its rotation axis is the shaft.
It is connected via 12 to the gear box 13 of each material container 1. The rotation of the motor 11 causes the screw 10, one end of which is connected to the gear box 13, to rotate, whereby the L-shaped support base 8 moves in the upstream and downstream directions. The distance between the second fixed support members 7 and 9 is adjusted by the movement of the support base 8.

A slide block 14 is movably supported in a vertical direction on a post 5 erected on the base 4. The slide block 14 holds a movable bearing member 15 on the upstream side thereof.
The movable bearing member 15 has a skirt-expansion slope 15a that is inclined downwardly toward the downstream side at the lower part, and has a vertical surface 15b above it. Then, the skirt expanding slope 15a of the movable support member 15
Forms a dogleg-shaped slope with the slope 7a of the fixed bearing member 7. The lower part of the movable bearing member 15 is pivotally attached to the slide block 14 so that the movable bearing member 15 can be retracted to the downstream side, and the intermediate portion thereof is pivotally attached to the tip of the rod 17 of the cylinder 16 pivotally supported by the slide block 14. It is supported.

A vertical screw 18 is screwed onto the slide block 14, and a motor 19 (FIG. 1) shared by the material accommodating portions 1 for driving the screw 18 is provided on the base 4. The rotation shaft of the motor 19 is connected to the gear box 21 of each material storage unit 1 via the shaft 20, and the rotation of the motor 19 causes the screw 18 whose lower end is connected to the gear box 21 to rotate and slide. The block 14 and the movable bearing member 15 held by the block 14 are moved up and down.

Material loading section 2 for loading a long material into the material storage section 1
As shown in FIG. 1, FIG. 2 and FIG. 4, a set of pits is provided in a pit 25 dug upstream of the material container 1 and is erected inside the pit 25. It has a vertical post 26. A horizontal mount 27 is installed from the upper part of the post 26 to the upstream side thereof, and the horizontal mount 27 is provided with a conveyor 28 slightly descending toward the downstream side. The conveyor 28 is a pulley 29 provided at the upstream end of the horizontal mount 27.
The long material 30 driven by the rotation of the conveyor roller 3 and conveyed in the longitudinal direction by the conveyor roller 3 is received upstream through the inclined skid 31 and traversed above the post 26 on the downstream side. The pulley 29 is driven by a motor 32 (FIG. 1) which is commonly used by the material loading sections 2.

A stopper 33 and a rotary kicker 34 are provided on the upper side of the post 26. The stopper 33 retains a predetermined number of the long members 30 on the conveyor 28, and the stop position is adjusted via the rod 36 by the rotation of the lever 35.
The rotary kicker 34 is pivotally supported by a bracket 38 on a mount 37 provided on the upper side of the post 26, and is chain-driven by the rotation of a gear 39 provided below the horizontal mount 27. Like the conveyor 28, the gear 39 is driven by the motors 40 (FIG. 1) at the respective material loading sections 2 all at once. Rotary kicker 34
By the rotation of, the long material 30 staying on the upstream side of the stopper 33 is transferred to the downstream side one by one.

The post 26 also horizontally holds a first moving base 41 extending in the upstream / downstream direction between the posts 26 via a plurality of guide rollers 42. The first moving base 41 has a vertical portion 43 at the bottom, and a rack gear 44 provided on the back surface thereof engages with a pinion gear 45 fixed to the post 26, and the pinion gear 45 is chain-driven by a motor 46. It moves vertically. The motor 46 is shared between the respective material loading sections 2 as in the case of the conveyor 28 and the rotary kicker 34 (see FIG. 1).

A horizontal second movable base 47 is supported on the first movable base 41 by a plurality of rollers 48 so as to be movable in the upstream and downstream directions. The second moving mount 47 has a rack gear 49 on the bottom surface, and the rack gear 49
A pinion gear 50 provided on the lower portion on the upstream side of the movable mount 47 is engaged with the. The pinion gears 50 are two motors 51 provided on the first moving base 41 at both ends of the installation line of the material charging section 2.
Are driven synchronously with each other, whereby the second movable mount 47 moves in the upstream and downstream directions.

The second moving mount 47 holds the lifting mount 52 at its downstream end. The lifting platform 52 has an arm shape and is inclined downward toward the downstream side. The upstream end of the lifting platform 52 is axially supported by the bracket 53 on the downstream end of the second moving platform 47, and is screwed.
The tilt angle is adjusted at 54. Lifting platform
52 is located between the material accommodating parts 1 and is moved up and down by the vertical movement of the first moving gantry 41, and is moved in the upstream and downstream directions by the movement of the second moving gantry 47.

The tip end of the lifting platform 52 is located downstream of the movable support member 15 of the material storage unit 1 in a state where the platform 52 is moved to the downstream limit. Also,
In the state where the lifting platform 52 is located at the lower limit and is located at the upper limit, the long member 30 transferred to the downstream side by the rotary kicker 34 is supported on the lifting platform 52 by the vertical surface 15b of the movable bearing member 15. It is designed to be retained. Therefore, if the elevating platform 52 is lowered in this state, the long material 30 on the elevating platform 52 is guided in the vertical surface 15b and the skirt spreading slope 15a following the vertical surface 15b in the material charging section 1 on the downstream side thereof. Is charged to. It should be noted that when the elevating platform 52 has moved to the upstream limit, its tip is completely retracted to the upstream side of the material charging unit 1.

The operation in such a stacking device will be described below with reference to FIG. 5 in the case of stacking 30 steel pipes in a hexagonal shape.

In the material accommodating portion 1, fixed support members 7 and 9 are set on the support bases 6 and 8, respectively, and by rotation of the motor 11, a long material is provided between the fixed support members 7 and 9 on the LL line. The position of the support base 8 is adjusted so that the steel pipes 30 of the book are juxtaposed. Further, the rod is advanced by the operation of the cylinder 16, and the movable bearing member 15 is erected so that its vertical surface 15b is completely vertical. Further, the height of the movable support member 15 is adjusted so that the upper end (lower end of the vertical surface 15b) of the skirt spreading slope 15a of the movable support member 15 is located on the line AA in FIG. 5 by the rotation of the motor 19. The AA line is at the level of one step of the material, and when the three steel pipes 30 are arranged in parallel on the bottom surface (first fixed bearing portion) located on the L-L line, the skirt spreading slope 15a is It does not come into contact with the steel pipe 30 on the downstream side.

In the material carrying-in section 2, the steel pipe 30 conveyed by the conveyor roller 3 is retained at the downstream portion by the conveyor 28. The lift base 52 is located at the uppermost position and on the most downstream side by the rotation of the motors 46 and 51. In this state, the rotary kicker 34 is operated to carry in the three steel pipes 30 onto the lifting platform 52. The steel pipes 30 carried on the lifting / lowering stand 52 roll to the downstream side and are stopped by the vertical surface 15b of the movable support member 15, and three steel pipes 30 stay on the upstream side thereof. When the three steel pipes 30 stay on the elevating platform 52 in this manner, the motor 46 drives the elevating platform 52 to descend until its upper surface is located below the line LL.

As a result, the steel pipe 30 is first attached to the vertical surface 15b of the movable support member 15.
Guided by the guide, it descends without moving in the upstream and downstream directions, and finally moves slightly downstream by the guide of the skirt spreading slope 15a following the vertical surface 15b, and the fixed support members 7 and 9 are inverted "C" shape. It is fitted between the slopes 7a and 9a. That is, the steel pipes 30 only move to the downstream side, and the first stacking is performed without being pushed back to the upstream side.

When the first stacking is completed, the motor 51 is driven to retract the lifting platform 52 to the upstream side, then the motor 46 is driven to raise the lifting platform 52 to the upper limit, and then the motor 51 is re-driven to lift the platform. Advance 52 to the most downstream side. In addition, the movable supporting member 15 is raised by one step by driving the motor 19, and the upper end of the skirt spreading slope 15a (the lower end of the vertical surface 15b) is extended.
Are positioned on the line BB in FIG. And the lifting platform
The four steel pipes 30 are loaded onto the 52, and the elevating stand 52 is lowered to a position where the lower surface thereof does not contact the upper surface of the first-stage steel pipe 30 and retracted to the upstream side. As a result, the four steel pipes 30 are stacked as the second stage on the three steel pipes 30 in the first stage. In this case as well, the four steel pipes 30 are stacked by moving slightly to the downstream side without moving backward to the upstream side.

Similarly, the movable support member 15 is raised stepwise so that the upper end of the skirt spreading slope 15a is positioned at the C-C line and D-D line levels, and the third stage (five) and the fourth stage ( 6) are stacked. Also in this case, the steel pipe 30 does not go backward.

The D-D line is located at substantially the same level as the upper surface of the seventh-stage steel pipe 30, and in this state, the number of pipes is reduced by one, and the fifth to seventh stages are stacked.

Even in the fifth to seventh stacking, the steel pipes 30 are first guided by the vertical surface 15b of the movable support member 15 to descend vertically by the descending of the elevating platform 52, and then moved to the downstream side by the guide of the skirt spreading slope 15a. However, the steel pipes 30 are stacked in layers on the fourth to sixth stages of the steel pipes 30, respectively, and the steel pipes 30 are prevented from moving backward.

When the thirty steel pipes 30 are stacked in a hexagonal shape in this manner, they are bound together. Then, the movable support member 15 is retracted to the downstream side by the operation of the cylinder 16, and the bundled steel pipes 30 are taken out of the material accommodating portion 1 in a state where the elevating platform 52 is retracted to the upstream side and the next stacking is performed. Prepare

The above is a case of 30 steel pipes, but even if the number of pipes changes, it is possible to stack in a hexagonal shape, and it is also possible to stack hexagonal shapes for long materials other than steel pipes with a circular cross section. is there. Further, the stacking apparatus of this embodiment can stack not only hexagonal shapes but also square shapes.

When stacking in a rectangular shape, as shown in FIG. 6, the fixed support members 7 and 9 are removed from the support bases 6 and 8 of the material storage unit 1, respectively, and the L-shaped support bases 6 and 8 are used to lengthen them. This is performed by directly supporting the downstream side and the upstream side of the scale member 30. The movable support member 15 is retracted to the position of the chain double-dashed line by the operation of the cylinder 16. In this case, long material 30
Is guided directly to the inner vertical surface of the L-shaped support table 6 and vertically descends. Therefore, it is possible to avoid the situation where the long member 30 is pushed back to the upstream side during the downward movement.

〔The invention's effect〕

As is clear from the above description, in the stacking device of the present invention, since the long material is lowered by the elevating stand and the material container is fixed, the elevating drive energy is small, the installation area can be reduced, and the elevating In spite of the lowering of the gantry, no backward movement occurs in the long material being lowered, and therefore damage to the long material is prevented and the alignment state thereof is not disturbed, so that stable and reliable stacking is guaranteed.

[Brief description of drawings]

FIG. 1 is a plan view showing an overall layout of an example of a stacking apparatus embodying the present invention, FIG. 2 is a side view of a material storage unit and a carry-in unit, and FIG. 3 is a side view of only a material storage unit. 4 (a) and 4 (b) are a front view and a side view of only the material carrying-in part, FIG. 5 is a schematic view showing the operation, and FIG. 6 is a usage state of the material storage part when stacking in a square shape. The side view shown in FIG. 7 is a schematic view of a conventional stacking device. In the figure, 1: material storage part, 2: material carry-in part, 7, 9: second fixed support member, 15: movable support member, 30: long member, 52: lifting platform.

Claims (1)

[Claims] 1. A material accommodating portion for accommodating a plurality of long materials in a stacked state, and a material carrying-in portion for carrying the long materials transversely into the material accommodating portion, and the material accommodating portion includes: A first fixed bearing member that forms a bottom surface and a second fixed bearing member that forms an inverted "C" -shaped slope are provided above the first fixed support member, and is combined with the slope on the downstream side in the material storage unit. It is equipped with a movable support member that can move up and down and that has a skirt-expanded slope that forms a "V" -shaped slope and a vertical surface that extends above the slope. A lifting platform is provided for placing the material and for simultaneously descending the plurality of long materials while contacting the most downstream long material with the vertical surface of the movable bearing member and the skirt spreading slope below the movable bearing member. Stacking device for long materials.