JPS60188229A - Conveying device for stepped load - Google Patents

Abstract

PURPOSE:To aim at the promotion of full automation, by installing a transfer device capable of taking out stepped loads, being piled up in multistage form upon setting plural loads turning to different directions with one another down to one stage, onto a conveyor after making them all turn to the same direction as well as of performing the stepped load with the specified pattern in a reverse manner. CONSTITUTION:A load receiving chain conveyor 3 conveying a pallet 1 where a lot of bag bodies are loaded in multistage form and a positioning chain conveyor 6 installed on a table lifter 7 as well as a empty pallet chain conveyor 9 are all set up in series, while a feeding conveyor 11 is set up in parallel with a group of these conveyors. Likewise, a base frame 12 is set up so as to straddle across these conveyors 6 and 11, and a traveling table 14 is shiftably installed along a horizontal lever 13 in front and in the rear of a top part of this base frame 12. And, a rotary plate 29 being free of rotation around a rotary shaft 28 is hung down to the center of a lower part of the traveling table 14, and two-in-a-set suction devices 30a are symmetrically installed in a lower surface of this rotary plate 29, while also two-in-a-set suction devices 30b are installed as many as three sets in total so as to sandwich the said devices 30a.

Description

[Detailed Description of the Invention] [Industrial Application Field] Powdered materials such as chemical fertilizers, cement, or carbon black are usually packaged in kraft paper bags and placed on a pallet for easy transport by forklift. tier 2 bags, 4 bags,
They are stacked in multiple tiers, such as in 5-bag stacks.

The present invention is useful for transporting all the loads stacked in multiple stages on a conveyor in the same direction and taking them out, or conversely for stacking the loads conveyed by the conveyor in multiple stages. This invention relates to a device for transferring stacked cargo.

[Prior art and purpose of the present invention]

In the past, unloading of large numbers of bags on pallets was done entirely manually or by using the ramp sliding method.

Even in the latter method, one person's assistance was required depending on the degree of overlapping of the bags in each layer.

The present invention is directed to a stacked cargo transfer device that is capable of stacking and unloading cargo without the need for human labor and is fully automated, especially when the loading format of the stacked cargo handled in each transfer operation differs each time. Another object of the present invention is to provide a stacked cargo transfer device that has a simple configuration and can be handled quickly.

[Structure of the invention]

The stacked cargo transfer device according to the present invention is provided on one side of the stacked cargo position, and is movable between a conveyor that can continuously convey the cargo in one direction, and an upper part of the stacked cargo position and the conveyor. a driving means for reciprocating the traveling platform between above the stacking position and above the conveyor; a rotary plate capable of rotating, a rotary drive means for rotating the rotary plate by a required angle around a vertical axis; The suction device is equipped with a plurality of suction devices whose suction operation is selectively controlled to be activated or not.

〔Effect of the invention〕

By using such a stacked cargo transfer device of the present invention, a plurality of cargoes facing different directions are stacked in multiple stages on a conveyor.
All the loads can be taken out in the same direction, or all the loads transported by a conveyor can be stacked continuously in a desired pattern, without the need for manpower.
Since it is possible to carry out loading and unloading operations and also to be fully automated, it is extremely convenient to use in factories that manufacture large quantities of powder and granular materials.

In addition, by providing a plurality of suction devices that are selectively controlled to be activated or not activated depending on the loading format, for example, each suction device can be mutually controlled depending on the loading configuration. Compared to a device that allows relative movement, the configuration of the transfer device is simpler and has the advantage of being able to quickly perform stacking and unloading operations.

〔Example〕

Hereinafter, the present invention will be explained based on an illustrated embodiment.

(1) is a pallet, (2) is a bag in which the powder and granular material to be transported is packaged, and on the pallet (1) are five bags (2) arranged as shown in Figure 4. ), and a large number of bags (2) are stacked in a multi-tiered manner such that each tier is alternately arranged upside down in FIG. 4.

(3) is a chain conveyor that receives a pallet (1) loaded with a large number of bags (2) and transported by a forklift, etc., and transports it forward (to the right in Figure 1).
(4) is a deceleration motor for driving the same.

A positioning panel (5) is erected to the left of the conveyor (3) in FIG. 2 for receiving goods.

The receivers are arranged close to each other in series in the transport direction of the conveyor (3), and the receivers are sent from the conveyor (3).
A pallet (1) full of bags (2) is placed in the
As shown in the figure, a positioning chain conveyor (6) for conveying to a predetermined position and temporarily stopping it is mounted on a table lifter (7).

(8) is a deceleration motor for driving the positioning conveyor (6), and the receiving conveyor (3) and the positioning conveyor (6) are always at the same height.

In the transport direction of the positioning conveyor (6), there are empty pallets arranged closely in series and receiving the empty pallets (1) sent from the positioning conveyor (6), which are at the same height as the conveyor (3). A pallet chain conveyor (9) is installed. (10) is a deceleration motor for driving the same.

On the left side of the chain conveyor (6) and (9) in Figure 3,
A conveyor (11) is installed parallel to these and conveys the articles in the same direction.

(12) is a base frame installed so as to straddle the positioning conveyor (6) and the transport conveyor (11).

On the front and rear horizontal rods (13) (13) at the top of the base frame (12), there are rollers (15) pivoted on both the left and right sides of a box-shaped traveling base (14) with an open top. Guide plates (16) extending along the outer surface of each horizontal rod (13) are vertically installed on both the front and rear sides of the riding platform (14).

The traveling platform (14) is driven by a deceleration motor (17) to travel above both conveyors (6) and (11).

The traveling platform (14) has a box-shaped push-up platform (18) with an open top.
) is fitted, and a wedge plate (19) whose front edge slopes forward and downward is erected at the center of its bottomed upper surface.

The push-up table (18) is slid back and forth by a forward-facing hydraulic cylinder (20) fixed to the rear surface of the traveling table (14).

The guide rods (21) in the form of angles facing up and down, which are fixed to the front and rear ends of both the left and right sides of the traveling platform (14), have support rods (21) vertically attached to the four corners of the horizontal support plate (22) 23) are fitted in such a way that they can be raised and lowered, and a roller (24) pivotally mounted on the lower surface of the support plate (22) rides on the wedge plate (19).

The positioning conveyor (6) is attached to the lower end of each support rod (23).
), a hanging support frame (25) made of channel material with a rectangular inner surface opening is suspended, and a horizontal support plate (26) is installed between the hanging support frames (25). It is fixed.

Therefore, due to the expansion and contraction of the hydraulic cylinder (20), the support plate (
26) moves up and down.

As shown in FIG. 1, in the center of the upper surface of the support plate (26),
A motor (27) with a reducer is installed, and the motor (27) with a reducer is installed.
The output shaft (27), that is, the rotating shaft (28) is connected to the support plate (
26) and hangs downward, and a horizontal rotary plate (29) is integrally and rotatably fixed to the free end thereof.

As shown in FIG. 4, on the lower surface of the rotary plate (29), lines are arranged in series along the left-right center line (12) passing through the rotary shaft (28), that is, the line in the same direction as the conveyor (11). 2
A pair of suction devices (30a) are provided on the left and right, and a set of two suction devices (30b) are arranged in parallel in a direction perpendicular to the center line (Q). Three pairs of suction devices (30a) (30a) (30a) (30b) are provided in three pairs on the left, right and in the center.
) to lift the bag (2).

Each adsorption device (30a) (30b) has an open bottom surface,
Each is equipped with a hollow suction cup (32) that can be raised and lowered up and down via a coil spring (31), and this suction cup (32)
) is connected to a vacuum pump (not shown) via an intake pipe (not shown).
The structure of this suction device is disclosed in Japanese Utility Model Application Publication No. 57-193392, so a detailed explanation will be omitted. The operation for stopping can be controlled.

Therefore, when the rotating shaft (28) and the rotating plate (29) are rotated 90 degrees by the motor (27) performing the required rotation, the suction device (30b) is moved in the same direction as the conveyor (11). It is arranged in line.

Next, a large number of bags (2) with 5 bags stacked on a pallet (1)
The procedure for transferring the materials to the carry-out conveyor (11) will be explained in order.

Using a forklift or the like, a pallet (1) loaded with a large number of bags (2) is placed on a conveyor (3) and transported to a predetermined position on a positioning conveyor (6), and then transported by a table lifter (7). The top layer bag (2) is lifted to a predetermined height, that is, to the height where it comes into contact with each suction cup (32).

When the bags (2) in the top layer are lined up as shown in Fig. 4, the first three bags (2b) (2b) (
2b), use the corresponding suction device (
30b) and the hydraulic cylinder (20) to raise the rotating plate (29).

Next, the motor (27) rotates the rotating plate (29) by 90
The longitudinal direction of each bag body (2b) is aligned with the conveyor (11) as shown by the imaginary line in FIG.
) so that it is parallel to

The motor (17) causes the carriage (14) to run in the direction of the conveyor (11) as shown by the imaginary line in Figure 3, and the hydraulic cylinder (20) expands and contracts again to move the rotating plate (29). lower it.

When the foremost bag (2b) reaches the top of the transport conveyor (11), the suction of only the front suction device (30b) is stopped and the bag (2b) is transferred onto the transport conveyor (11). Thereafter, the second and third bags (2b) are also sequentially transferred onto the conveyor (11).

Next, when returning the carriage (14) to the pallet (1), the rotary plate (29) is rotated 90 degrees by the motor (27) and returned to its original position.

After the remaining bags (2a) (2a) arranged in series are adsorbed by the suction devices (30a) (30a), the rotating plate (29) is not rotated and as shown in FIG.
The running platform (14) is run on the transfer conveyor (11),
The suction of the suction device (30a) is stopped, and the materials are sequentially transferred onto the conveyor (11).

Once the top layer bags (2a) and (2b) have been transferred,
The table lifter (7) lifts the next layer of bags (2) together with the pallet (1) to a predetermined height.

Similarly to the above, this layer of bags (2) is transferred to the carry-out conveyor (1).
1) Transfer above.

Although not shown in the figure, the conveyor (3) is stopped when receiving cargo.

Operation and stop of the positioning conveyor (6), operation and stop of the empty pallet conveyor (9), lifting and stopping of the table lifter (7), running and stopping of the traveling platform (14) in both directions, and operation of the pushing platform (18). Bidirectional movement and stop, hydraulic cylinder (20
) expansion and contraction, 90° rotation of the rotary plate (29), suction device (3
All operations such as suction and suction stop in 0) are performed automatically by electrically controlling each drive device according to instructions from microswitches installed at key points that detect these operations. .

By repeating the above operations, all the bags (2) on the pallet (1) are automatically transferred to the unloading conveyor (1).
1) An empty pallet that can be transferred onto the
) can be transferred onto an empty pallet conveyor (9) and carried away by a forklift or the like.

Moreover, by operating the entire apparatus in the opposite manner to the above case, the bags (2) that have been conveyed in the opposite direction from the carry-out conveyor (11) are placed on the pallet (1) in the above-mentioned pattern.
Can be stacked in multiple stages.

In the above embodiment, the pallet (1) is raised and lowered together with the positioning conveyor (6) using the lifter (7), but the lifter (7) is installed inside the positioning conveyor (6) and the pallet Only (1) may be raised and lowered. Further, the traveling platform (14) may be caused to travel by providing pinions and racks on the traveling platform (14) and the base frame (12), respectively.

The support plate (26) is raised and lowered by the support plate (22) and the push-up table (18).
) between them, a hydraulic cylinder facing upward is provided, or a guide plate with oblique long holes bored in each of them,
The support plate (26) may be moved up and down by providing a roller that fits into the elongated hole and moving one of the rollers back and forth, or by suspending the support plate (22) with a chain.

As described above, various changes can be made to the drive means for each member, and the present invention does not specify these drive means.

Further, the number of suction devices arranged on the rotary plate (28) and their arrangement are not limited to the above-mentioned embodiments, and may be freely set according to the shape of the load and the stacking type.

Further, the structure of the suction device is not limited to the structure of the embodiment. For example, the suction cup may be configured to be moved up and down by an air cylinder, and only the required suction cup may be lowered to attract the load. Yoshi Xl+

[Brief explanation of the drawing]

Figure 1 is a side view showing one embodiment of the device of the present invention, Figure 2 is a plan view, Figure 3 is a front view, Figure 4 is a stacked state of bags on a pallet and suction. FIG. 5 is a plan view showing the arrangement of the apparatus; FIG. 5 is a diagram schematically showing the transfer situation of three bags in parallel; and FIG. 6 is a view showing the transfer situation of two bags in series. (1) Pallet (2) (2a) (2b) Bag (3
) Conveyor for cargo receiving (4) Motor (5) Positioning panel (6) Positioning conveyor (7)
Table lifter (8) Motor (9) Empty pallet conveyor (10) Motor (11) Transfer conveyor (12)
Base frame (13) Horizontal rod (14) Travel platform (15) Roller (16) Guide plate (17) Motor (18) Push-up table (19) *Plate (20) Hydraulic cylinder (21) Guide rod (22) Support plate (23) Support rod (24) Roller (25) Hanging support frame (26) Support plate (27) Motor (28) Rotating shaft (29) Rotating plate (30a) (30b) Suction device (3
2) Suction cup

Claims (1)

[Scope of Claims] A conveyor provided on one side of the stacking position of the stacked cargo and capable of continuously conveying the cargo in one direction, and a conveyor provided so as to be movable between the stacking position and above the conveyor. a traveling platform; a drive means for reciprocating the traveling platform between above the stacking position and above the conveyor; and a rotary plate that hangs from the lower end of the traveling platform and is rotatable about a vertical axis. , a rotation driving means for rotating the rotary plate at a required angle around a vertical axis; and a rotation driving means provided on the lower surface of the rotary plate in an appropriate arrangement, and which performs a suction operation according to the loading form of the stacked goods to be transferred. 1. A transfer device for stacked cargo, comprising a plurality of suction devices that are selectively controlled to be activated or inoperative.