JP3199956B2 - Metal sheet stacking equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal sheet that can be stacked very efficiently and safely without causing scratches or folds on the surface of the individual sheet metal sheets when they are stacked in a bundle. The present invention relates to an apparatus for stacking thin plates.

[0002]

2. Description of the Related Art Conventionally, thin metal sheets cut to an appropriate length from a roll-shaped metal strip material are often stored in a stack. Such a series of operations for stacking a large number of metal sheets in a bundle must be performed by at least two or more workers, and the larger the area of the metal sheets, the greater the number of workers without increasing must not. Furthermore, even with a thin metal plate, as the plate thickness increases, the weight also increases in proportion to the thickness, which increases the burden on the operator and requires attention to safety. Further, in recent years, the number of roll-shaped metal strips made of high-grade color steel sheets has been increasing, and handling thereof has caused many inconveniences, such as the necessity of extremely nervous.

[0003]

As described above, a plurality of workers are required for stacking the thin metal sheets cut to an appropriate length from the roll-shaped metal strip in a bundle, and the operation time is long. Spending. In addition, when stacking metal sheets in a bundle, if the metal sheets are dragged, the surface of the metal sheets will be scratched and the commercial value of high-quality color metal sheets etc. will decrease. Become.

[0004] Alternatively, when stacking metal sheets, if the working state is poor, the metal sheets often have folds, making it impossible to maintain high quality metal sheets. In addition, when the area of the metal sheet becomes large, and thus the weight increases, the burden on the worker also increases, and safety in work cannot be maintained.

[0005]

Means for Solving the Problems Accordingly, the inventor of the present invention has conducted intensive studies to solve the above-mentioned problems, and as a result, the present invention
A circulating roller conveyor in which a plurality of free rolls each having a narrow shaft portion are arranged endlessly so as to be capable of circulating drive, and an opening where the free roll does not exist is formed at an appropriate position in the circulating direction at a predetermined interval. A metal sheet stop having a stopper is provided at an appropriate position on the transport side of the circulating roller conveyor, and the lower end of the stopper is close to the thin shaft portion of the free roll and slightly less than the surface of the free roll. When the metal sheet stacking device is provided in a sunk position and provided with a receiving table between the transport side and the return side of the circulation roller conveyor, the surface of each metal sheet is stacked when the metal sheets are stacked in a bundle. Thus, the stacking operation can be performed extremely efficiently and safely without causing any scratches or folds on the surface, thus solving the above problem.

[0006]

First, when the circulating roller conveyor A is rotated and the sheet metal P is sent to the transport side Ag of the circulating roller conveyor A, the sheet metal P moves in the rotating direction of the circulating roller conveyor A (in FIG. Roller conveyor A rotates clockwise). Next, the leading end of the metal sheet P in the transport direction comes into contact with the metal sheet stopper B, and the movement of the metal sheet P stops (see FIG. 8). Next, the opening A of the circulation roller conveyor A
₁ is approaching from the rear of the sheet metal P, the rear end of the sheet metal P enters the inside of the circulating roller conveyor A from the opening A ₁ (see FIG. 9).

FIG. 1 shows this state in more detail.
0 to 12 are shown. That is, as shown in FIGS. 10 to 12, the opening A ₁ is moved according to the direction of the arrow,
First, as shown in FIG. 10, the opening A ₁ at the rear end portion of the sheet metal P has reached the free rolls 2,2 of the metal sheet P the rear end part it is circulating roller conveyor A, ... by no longer supported Then, as shown in FIGS. 11 and 12,
Rear end of the sheet metal P at the opening A ₁ point starts bending gradually. Then, the metal sheet P is gradually placed forward from its rear end on the receiving table 9 or the metal sheets P, P... Stacked in a bundle of the receiving table 9 (see FIG. 13).

The opening A of the circulation roller conveyor A
_{When 1} reaches the front end of the metal sheet P, the mounting of the metal sheet P on the cradle 9 is completed (FIG. 1).
4). When an appropriate amount of the bundle of metal sheets P is completed on the cradle 9, the cradle 9 is moved outward from the circulation roller conveyor A. At this time, the work can be efficiently performed by using the transport cart C. (See FIGS. 20 and 21).

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 5, a circulating roller conveyor A has two endless drive belt bodies 1, 1 facing each other. Are arranged so that a plurality of free rolls 2, 2,... Are rotatably connected between the drive belt members 1, 1 (see FIGS. 3 and 5). Motor M
, And circulates at a constant speed via the drive wheels 3a and the guide wheels 3b, 3b,... (See FIG. 2). The drive belt bodies 1 and 1 are circulated to form free rolls 2
.. Can also be circulated. The drive belt body 1, 1 specifically uses a chain, and in other embodiments, various types of belt members may be used.

[0010] As the circulating roller conveyor A the opening A ₁ in an appropriate position are formed, a plurality of free roll 2,2 of the opening A ₁ is circulated roller conveyors A, ... in the group,
Free rolls 2, 2, ... do not exist over a predetermined interval,
It has an opening hole shape (see FIGS. 1 and 5). Then, the metal sheet P from the opening A ₁ is, FIG. 1
As shown in the figure, the structure is such that it can enter from the front side of the transport side Ag toward the back side.

The circulating roller conveyor A is accommodated in a frame F. The frame F covers the both sides of the circulating roller conveyor A in the conveying direction, and the conveying side Ag and the returning side of the circulating roller conveyor A. And a guide frame section 5 for protecting Ab. The circulating roller conveyor A
Circulates in the frame F (see FIG. 1). The circulating roller conveyor A conveys the metal sheet P in the circulating direction by circulating driving.
The side on which the free rolls 2, 2,... Convey the metal sheet P in a predetermined direction above the circulating roller conveyor A is referred to as a conveying side Ag, and the conveying operation of the metal sheet P below the circulating roller conveyor A is performed. , And the side on which the free rolls 2, 2,... Return to is defined as the return side Ab.

In the circulating roller conveyor A, the free rolls 2, 2,... Are freely rotatably mounted on mounting hooks 1a, 1a,. (See FIG. 6). There are also embodiments in which the free rolls 2, 2,... Are detachable from the mounting hooks 1a, 1a,. As a specific example, as shown in FIG. 17, the axial ends of the free roll 2 is provided with a support shaft 2b having a flange plate 2b ₁ telescopically, bullet the flange plate 2b ₁ such as a coil spring Source 2
c, the support shaft 2b resiliently projects outside the free roll 2 in the axial direction. The mounting hook 1a facing the opposite axial sides of the support shaft 2b of the free rolls 2 and 2b both drive belt 1, 1, is intended to be fitted and fixed into the through hole 1a _1, 1a ₁ of 1a.

The sheet metal stopper B is provided at the end of the conveyor side Ag of the circulating roller conveyor A. Specifically, as shown in FIGS. 15 and 16, it comprises a stopper 6 and a magnet 7. Have been. The stopper 6 comes into contact with the leading end (the leading end in the carrying direction) of the metal sheet P conveyed by the circulation of the circulating roller conveyor A, and stops the conveyance of the metal sheet P. The magnet portion 7 is provided at a position on the front side of the stopper portion 6 and attracts the front end surface of the metal sheet P stopped by the stopper portion 6 (an imaginary line portion of the metal sheet P in FIG. 16). See).

Further, it is preferable that an electromagnet is used for the magnet section 7 so that the suction operation of the metal sheet P can be appropriately controlled. Although not shown, there is an embodiment in which the metal sheet stop B is constituted only by the stopper portion 6. The metal sheet stop B is fixed to a rod 8 disposed above the transport side Ag of the circulation roller conveyor A. Further, there is also an embodiment in which the metal sheet stop B is configured to be slidable along the axial direction of the rod 8 as necessary, and the transport stop position of the metal sheet P can be appropriately adjusted. Exists (see FIGS. 1 and 3).

At a substantially intermediate position in the axial direction of each free roll 2, there is a thin shaft portion 2a having a smaller diameter.
The stopper portion 6 of the metal sheet stop B is close to the thin shaft portion 2a. That is, the lower end of the stopper portion 6 can be set at a position slightly sunk below the surface of the free rolls 2, 2,... On the transport side Ag, so that the leading end of the thin metal sheet P to be transported can surely abut. (See FIG. 16).

As shown in FIGS. 1, 3 and the like, a receiving table 9 is provided between the transport side Ag and the return side Ab of the circulating roller conveyor A. The pedestal 9 is for stacking the metal sheets P conveyed by the circulation roller conveyor A regularly in a bundle, and has a larger area than the metal sheets P. The pedestal 9 can be moved to the outside of the circulating roller conveyor A orthogonally to the circulating direction of the circulating roller conveyor A, and transfer bodies 10, 10 are provided below the pedestal 9. (FIGS. 3 and 4
reference).

The transfer vehicle body 10 is provided with a roller conveyor 10a on the upper surface side. The roller conveyor 10
The conveying direction of a is orthogonal to the circulating direction of the circulating roller conveyor A, and the receiving table 9 is conveyed in a direction orthogonal to the circulating direction of the circulating roller conveyor A, and can be taken out of the circulating roller conveyor A. It becomes the structure which becomes. Further, on the lower surface side of the transfer vehicle body 10, wheels 10b, 10b movable along the circulation direction of the circulation roller conveyor A are provided, and the wheels 10b, 10b are located below the frame F of the circulation roller conveyor A. The guide frame portion 5 is used as a guide rail, and has a structure that can be appropriately moved along the circulation direction of the circulation roller conveyor A.

Outside the circulating roller conveyor A,
As shown in FIG. 20, there is a case where transport carts C and C are provided, and the transport carts C and C are attached to the transfer vehicle bodies 10 and 1 respectively.
It is installed at a position corresponding to 0. Then, as shown in FIG. 21, the receiving table 9 on the transfer vehicle bodies 10, 10 is transferred onto the transport vehicles C, C, and the receiving table 9 is placed on the transport vehicles C, C. 9 to transport trolleys C, C
Is moved to a desired location. As shown in FIGS. 20 and 21, the transport cart C is provided with a transfer upper portion 13 such as a roller conveyor or a belt conveyor, and the transfer upper portion 13 is provided with moving wheels 14, 14,. The cradle 9 can be very easily and safely moved onto the transport vehicles C, C from above the transfer vehicle bodies 10, 10.

In the circulating roller conveyor A, a cutting machine 11 for forming a metal sheet P of an appropriate length from a roll-shaped metal strip R is arranged at the starting end of the conveyance. A drum device 12 in which a roll-shaped metal strip R is provided in a roll shape is disposed (see FIG. 2).

In addition, there is an embodiment in which a plurality of openings A ₁ provided in the circulation roller conveyor A are provided. Specifically, as shown in FIG. 18, two openings A ₁ , A are provided in the circulation roller conveyor A. ₁ or, as shown in FIG. 19, three openings A ₁ , A ₁ , A ₁ . By providing the plurality of openings A ₁ , A ₁ ,... In this manner, the number of circulations of the openings A ₁ per fixed time increases, and the efficiency of the stacking operation of the metal sheets P can be improved. .

[0021]

Next, according to the first aspect of the present invention, a plurality of free rolls 2 having thin shaft portions 2a, 2a,.
2, ... are arranged endlessly to enable circulation drive,
Configure that said at predetermined intervals in the appropriate position in the direction of circulation free rolls 2,2, the circulating roller conveyor A, which has an opening A ₁ that ... does not exist, an appropriate conveying side Ag of the circulating roller conveyor A Is provided with a metal sheet stop B having a stopper portion 6 at a position where the lower end of the stopper portion 6 is close to the thin shaft portion 2a of the free roll 2 and is slightly sunk from the surface of the free rolls 2, 2,. First, the metal sheet P is scratched, creased and the like by the metal sheet stacking device having the receiving plate 9 provided between the transport side Ag and the return side Ab of the circulation roller conveyor A. Second, the number of personnel involved in the work can be minimized; third, the work can be performed safely and quickly; stop Body B is always a metal sheet P being conveyed, it is possible to securely stop at a precise position, exerts various effects, such as can be regularly stacked bundle state thin metal plate P.

The metal sheet P conveyed by the circulating roller conveyor A is conveyed in the circulating direction of the circulating roller conveyor A, and the sheet metal stop B
The tip of the metal sheet P comes into contact with the
Although transfer is stopped, further circulating roller conveyor A is circulated, sheet metal P to the opening A ₁ provided in the circulating roller conveyor A is inserted from the rear end (the conveyance direction opposite), while gently flexing , Can be brought into contact with the cradle 9 from the rear end thereof (see FIGS. 1, 7 to 9).

Furthermore, the circulating roller conveyor A circulates accordance openings A ₁ is moved in the transport direction, can be the metal sheet P is slide into loosely surface contact on the pedestal 9 gradually, therefore The metal sheets P can prevent scratches or folds when being stacked (see FIGS. 13 and 14).

Next, since the circulating roller conveyor A is configured to be capable of circulating driving, once the metal sheet P is placed on the circulating roller conveyor A, the conveyance is automatically started thereafter. . The above-described series of operations are all performed automatically, and the metal sheets P are stacked so as not to cause abrasion or folds on the receiving table 9, and these series of operations are performed by operating the apparatus. This can be done by only one worker.

Next, in a series of operations for transporting the metal sheet P by the circulating roller conveyor A and stacking the metal sheet P on the receiving table 9, the worker does not touch the metal sheet P at all, and Safe work can be done.
Furthermore, compared with the operation in which the worker transports the sheet metal P one by one and stacks it at a predetermined position, the present invention can complete the operation of stacking the sheet metal P into a bundle in an extremely short time. It is.

Further, a thin shaft portion 2a is formed at the center of each free roll 2 in the axial direction, and the stopper portion 6 of the thin metal plate stopper B is connected to the thin shaft portion 2a of the free roll 2.
So that the lower end of the stopper portion 6
As shown in FIGS. 3 and 16, the circulating roller conveyor A can be slightly sunk into the inside from the surface of the conveying side Ag, and the leading end of the thin metal sheet P to be conveyed surely reaches its stopper portion 6. Since the metal sheets P which can be brought into contact and sequentially conveyed can be stopped at exactly the same place,
The stacked state of the metal sheets P to be stacked can be made uniform.

Next, in the second aspect of the present invention, in the first aspect, the receiving table 9 is a stacking device for thin metal plates which is detachable from the circulating roller conveyor A, so that the stacked thin metal plates P, P can be taken out very efficiently. That is, since the receiving table 9 is detachable from the circulating roller conveyor A, after the metal thin plates P, P,... Are sufficiently stacked on the receiving table 9, the receiving table 9 is taken out from the circulating roller conveyor A. That is, the stacked metal sheets P,
Can be extracted very efficiently.

Next, in the invention of claim 3, a plurality of free rolls 2, 2,... Are arranged endlessly so as to be capable of circulating drive, and the free rolls 2, 2,. free rolls 2,2, ... constitute a circulating roller conveyor a, which has an opening a ₁ is absent, a metal sheet stop member B having a stopper portion 6 in the appropriate position of the conveying side Ag of the circulating roller conveyor a , The lower end of the stopper portion 6 is provided closer to the center of the free roll 2 than the transport surface of the free rolls 2, 2,..., And a pedestal is provided between the transport side Ag and the return side Ab of the circulating roller conveyor A. 9
The sheet metal stopper B is a stacking device for sheet metal provided with a magnet portion 7 having an appropriate magnetic force, so that the sheet metal P in contact with the sheet metal stopper B stops and the magnet section is stopped. 7 and held in a stable state until the metal sheet P is placed on the pedestal 9.

[Brief description of the drawings]

FIG. 1 is a longitudinal side view of the present invention.

FIG. 2 is a schematic view of the present invention in which a roll forming machine and the like are mounted.

FIG. 3 is a sectional view of a main part of the present invention.

FIG. 4 is a side view of a cradle portion.

FIG. 5 is a perspective view of a main part of a circulation roller conveyor.

FIG. 6 is a perspective view of a free roll and a mounting hook.

FIG. 7 is a schematic view showing a state in which a metal sheet is fed to a circulation roller conveyor.

FIG. 8 is a schematic diagram showing a state in which the conveyance of the metal sheet is stopped by the metal sheet stopper.

FIG. 9 is a schematic diagram showing a state in which the opening of the circulation roller conveyor reaches the rear end of the sheet metal.

FIG. 10 is an enlarged sectional view of a main part showing a state where the opening of the circulation roller conveyor has reached the rear end of the sheet metal.

FIG. 11 is an enlarged sectional view of a main part showing a state in which the opening of the circulation roller conveyor reaches the rear end of the sheet metal and the rear end of the sheet metal starts to bend;

FIG. 12 is an enlarged cross-sectional view of a main part showing a state where the rear end of the metal sheet is in contact with the bundle of metal sheets stacked on the receiving table;

FIG. 13 is a schematic diagram showing a state in which an opening of a circulation roller conveyor moves and a metal sheet is gradually placed on a receiving table.

FIG. 14 is a schematic diagram showing a state in which the opening of the circulation roller conveyor reaches the leading end of the sheet metal and the sheet metal is about to be placed on the cradle.

FIG. 15 is a perspective view of a thin metal plate stopper.

FIG. 16 is a cross-sectional view of a sheet metal stopper.

FIG. 17 is a sectional view of a main part of an embodiment of a free roll detachable from a mounting hook.

FIG. 18 is a schematic view of an embodiment in which two openings are provided in a circulation roller conveyor.

FIG. 19 is a schematic view of an embodiment in which three openings are provided in a circulation roller conveyor.

FIG. 20 is a cross-sectional view before taking out a cradle from a feed roller conveyor by using a transport cart.

FIG. 21 is a cross-sectional view after the pedestal is taken out from the feed roller conveyor by using a transport cart.

[Explanation of symbols]

A: Circulating roller conveyor A ₁ : Opening Ag: Conveying side Ab: Returning side 2: Free roll 2a: Thin shaft 6: Stopper B: Metal sheet stop 7: Magnet 9: Cradle

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B21D 43/22 B65G 57/03 B65G 47/34

Claims (3)

(57) [Claims] A plurality of free rolls each having a thin shaft portion are arranged endlessly so as to be capable of circulating drive, and an opening where the free roll does not exist is provided at an appropriate position in the circulating direction at a predetermined interval. The formed circulating roller conveyor is constituted, a sheet metal stopper having a stopper portion is provided at an appropriate position on the transport side of the circulating roller conveyor, and the lower end of the stopper portion is brought close to the thin shaft portion of the free roll.
An apparatus for stacking thin metal sheets, characterized in that a cradle is provided between a transport side and a return side of the circulating roller conveyor at a position slightly below the surface of the free roll . 2. The metal sheet stacking apparatus according to claim 1, wherein the receiving table is detachable from a circulating roller conveyor. 3. A circulating roller conveyor in which a plurality of free rolls are arranged endlessly so as to be able to be driven in a circulating manner, and an opening in which the free roll does not exist is formed at an appropriate position in the circulating direction at a predetermined interval. A metal sheet stop having a stopper portion is provided at an appropriate position on the transport side of the circulating roller conveyor, and a lower end of the stopper portion is provided closer to the center of the free roll than the transport surface of the free roll, and the circulation is performed. An apparatus for stacking thin metal sheets, wherein a receiving table is provided between the transport side and the return side of the roller conveyor, and the thin metal sheet stop is provided with a magnet portion having an appropriate magnetic force.