JP2001233449A - Method and device for delivery of baggage in conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and device for delivery of a baggage in a moderately priced conveyor capable of surely delivering baggage on a one-by-one basis with a simple means. SOLUTION: Baggage W1 is delivered on a workbench 1 with only such simple means that a front part side of the baggage W1 is pushed up by a push up roller 15, conveyed on an inclined conveyor 2a by self-weight, and pushed and moved by a pushing force, thereby this conveyer is configured in relatively low cost as compared with a conventional device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of sequentially loading loads stored on a roller conveyor into a work space in front of the load.
The present invention relates to a dispensing method and apparatus for dispensing individual items.

[0002]

2. Description of the Related Art Conventionally, a large number of loads conveyed from an automatic warehouse or the like are stored on a roller conveyor and made to stand by, and are sequentially discharged from a front portion to a work space. 5-49715
Some are disclosed in Japanese Patent Application Publication No.

[0003]

The above-mentioned conventional devices are all complicated in construction, and in particular, the former device is expensive because it has a plurality of braking devices.

[0004] The latter is equipped with a cut-out (discharge) mechanism comprising a plurality of rollers which can be lifted and lowered, and discharges the load placed on the upper surface by its own weight. Length is limited.

[0005] That is, if the length of the load is smaller than the front-rear length of the cutout mechanism, a part of the front side of the subsequent load is also located on the cutout mechanism, and two pieces are cut out at the same time or the load of the load in front is removed. It is conceivable that the cutting is not smooth.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a method and an apparatus for unloading a load in an inexpensive conveyor which can reliably discharge the loads one by one by simple means. It is intended to provide.

[0007]

In order to achieve the above-mentioned object, a method of discharging a load in a conveyor according to the present invention comprises the steps of: loading a frontmost load among a plurality of loads stored and waiting on a roller conveyor adjacent to a work space; In a state in which the front part of the vehicle is pushed up, this load is moved forward to a predetermined forward position by moving a subsequent load, thereby being pushed forward and transferred onto the work space. According to the invention having the above configuration, it is possible to reliably discharge one load at a time from the foremost part of the load to the work space, regardless of the length of the load.

In the conveyor according to the present invention, a load discharging device for a load conveyed on a roller conveyor is provided at a front end of a roller conveyor provided adjacent to a work space. A push-up member that pushes up at least the bottom surface of the foremost load until the lower surface of the leading end of the load is located above the stopper, is provided at an appropriate position on the roller conveyor on the upstream side so that it can be raised and lowered by lifting means, and A push means for pushing the frontmost load forward is provided. According to the invention having the above-described configuration, the push-up member pushes up the front side of the load, and the load can be discharged to the work space by a simple means in which the pressing means only pushes the load forward. It is cheaper than conventional devices.

In the apparatus for discharging a load on the conveyor, it is preferable that the push-up member be a push-up roller using at least one of the roller conveyors. According to the invention having the above configuration, it is not necessary to separately provide a dedicated push-up roller, so that the cost can be reduced.

In the above-described apparatus for discharging a load on the conveyor, it is preferable that the roller conveyor is inclined forward, and a force for a subsequent load to move forward on the roller conveyor by its own weight is used as a pressing means of the foremost load. . According to the invention having the above configuration, it is not necessary to provide a pushing means having a complicated structure such as a pusher, so that the cost can be reduced.

In the above-described apparatus for discharging a load on a conveyor, a part of a roller of a roller conveyor below a subsequent load is used as a driving roller to forcibly move a subsequent load forward to thereby push a frontmost load. It is preferable that According to the invention having the above configuration, it is not necessary to provide a pushing means having a complicated structure such as a pusher, so that the cost can be reduced.

[0012] In the apparatus for discharging a load on the conveyor, it is preferable that the push-up roller also serves as a stopper for a subsequent load when the roller is projected upward. According to the invention having the above structure, a stopper for a subsequent load is not required, and the load is moved forward until it comes into contact with a subsequent load lifting roller, so that the foremost load is reliably pushed out onto the work space.

[0013] In the apparatus for discharging a load on the conveyor, the stopper is preferably a rotatable roller-type stopper. According to the above configuration, when the load rides on the stopper and is discharged, the slide does not slide between the load and the stopper, so that damage to the load is prevented and the load is smoothly discharged.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. First, a description will be given of a first embodiment of the invention of the load discharging device in the conveyor according to the present invention.

FIG. 1 is a perspective view showing a state in which a roller conveyor provided with a load discharging device of the present invention is connected to a work table.
2A is a side view of the dispensing device showing a state where the push-up roller is raised, FIG. 2B is a side view of the dispensing device showing a state where the push-up roller is lowered, and FIG. 3 is a plan view of the dispensing device. is there.

First, FIG. 1 shows two roller conveyors 2a and 2b provided with a paying-out device to be described later of the present invention at the front end. These roller conveyors 2a, 2b are respectively installed on both sides of the work table 1, which is a working space, at a downward inclination, and connected to their downstream front ends, and each front end of the roller conveyors 2a, 2b indicated by A The section is provided with a load discharging device (hereinafter referred to as a discharging device). In the present embodiment, one roller conveyor 2a will be described below.

As shown in FIGS. 2 (a), 2 (b) and 3, the roller conveyor 2a has a plurality of transport rollers R rotatably supported at a predetermined interval above the frame 6; It is configured such that the load placed on the R moves in the downward inclination direction by its own weight.

Further, the roller conveyor 2a has a transfer upper surface (upper portion of the transfer roller) at the inclined front end thereof located at a position lower than the upper surface of the worktable 1, and a step formed with respect to the upper surface thereof has a load to be transferred. In the present embodiment, a stopper 5 whose upper end is located at the same position as or slightly above the upper surface of the worktable 1 is provided at the front end of the roller conveyor 2a.

The stopper 5 comprises a bracket 7 projecting above the left and right frames 6 of the roller conveyor 2a, and a roller 8 rotatably supported at the upper end thereof.

Next, the dispensing device is mounted on the upper surface of one end of a fixed frame 9 which is horizontally fixed to a frame 6 which is a proper position of the roller conveyor 2a on the upstream side of the stopper 5 via two front and rear cross bars B. A support shaft 10 is supported. One end of a swing frame 11 is pivotally supported on the support shaft 10, and a push-up member 12 described later is provided at the other end.

Further, the pivot 1 horizontally provided on the downstream side of the fixed frame 9.
An L-shaped lever 17 is pivotally supported at 6. One end of the lever 17 has a cylinder rod 19 of an air cylinder 18 as an elevating means whose one end is pivotally supported on the upstream bottom surface of the fixed frame 9. Is pivotally connected via a support shaft 20, and the other end of the swing frame 11 is connected to the other end of the lever 17 by the support shaft 2.
2 is pivoted through.

More specifically, the push-up member 12 has a horizontal frame 13 provided on the other end side of the swing frame 11 so as to be orthogonal to the direction in which the load is conveyed, and stands on both ends of the horizontal frame 13. It comprises a push-up roller 15 rotatably supported on stands 14a and 14b provided.

The push-up roller 15 is connected to the stopper 5
As a suitable position of the roller conveyor 2a on the further upstream side, a roller having the same configuration as that of the transport roller R is used instead of the transport roller R disposed at, for example, the second roller from the forefront end.

That is, when the upper end portion of the push-up roller 15 is raised by the expansion and contraction of the cylinder rod 19 by the air cylinder 18, the upper end portion is located at a position equal to or higher than the upper end portion of the stopper 5. Further, when it descends, it is configured to descend to the same surface as the transport roller R.

Here, it is preferable that the proper position of the transport roller R is located at least on the downstream side in the vicinity of the center of gravity of the frontmost load abutting on the stopper 5. Thus, when the foremost load is pushed up by the push-up roller 15,
The front end of the load is inclined upward, and the stopper 5 can be easily passed over by the pushing operation by the load from behind.

It is preferable that the position of the push-up roller 15 arranged at the front end of the roller conveyor 2a be adjustable at intervals of the transport roller R along the transport direction.

By doing so, the size of the load,
Even if the position of the center of gravity is located at the front depending on the shape, it is possible to always give an acting force to push up the front of the load.

Next, a method of discharging a load in the conveyor of the present invention will be described. 4 (a) to 4 (d) are explanatory diagrams showing the operation of discharging a load.

First, as shown in FIG. 4, loads W conveyed by their own weights on roller conveyors 2a and 2b installed on both sides of the worktable 1 at a downward inclination.
, W2, W3,... Are controlled by a vertically movable push-up member 12 provided immediately before the workbench 1 to control the carry-in amount on the workbench 1.

That is, the push-up member 12 is pushed by a worker P who sorts on the work table 1 by operating a foot switch (not shown) or the like.
And load W1, W on roller conveyors 2a, 2b.
2, W3... Are stored, or the frontmost load W1 stored is separated and transferred onto the work table 1 one by one.

First, as shown in FIG. 4A, the conveyed loads W1 and W1 are placed on the roller conveyor 2a.
2, W3... Are stoppers 5 at the front end of the roller conveyor 2a.
And awaiting storage.

Then, by operating the foot switch or the like by the operator P to operate the air cylinder 18 as the elevating means shown in FIG. 2A to extend the cylinder rod 19, the lever 17 causes the pivot 16 to move. Rotate clockwise as center.

Thus, the swing frame 11 is connected to the support shaft 1.
Swinging upward with the fulcrum 0, the push-up roller 15 provided at the other end of the swing frame 11 rises, and the push-up roller 15 pushes up the bottom surface of the foremost load W1.

By this lifting, the foremost load W1 becomes:
The front end portion is tilted upward from the stopper 5, and in conjunction with this tilting operation, the load is pushed out from the rear by a subsequent load W2, W3.
(C).
Will be transferred above.

Next, in FIG. 4C, when the foremost load W1 is transferred onto the work table 1, the subsequent loads W2, W
3 are prevented from moving by the lifting roller 15 in the ascending state, and are again in the storage standby state.

Then, the operator P operates the foot switch or the like to operate the air cylinder 18 shown in FIG.
Is operated to reduce the cylinder rod 19, whereby the lever 17 rotates counterclockwise about the pivot 16 so that the swing frame 11 swings downward about the support shaft 10 and swings. The push-up roller 15 provided on the other end of the moving frame 11 descends to the same level as the transport roller R.

When the lifting roller 15 descends, the following loads W2, W3,..., Which have been prevented from being conveyed by the lifting roller 15, are moved forward by their own weight, and
As shown in (d), when the frontmost load W2 is conveyed forward on the roller conveyor 2a, the load W2 at the forefront end comes into contact with the stopper 5, and the subsequent W3 ... waits for storage on the roller conveyor 2a.

As described above, by repeating the combined use of the lifting and lowering means and the pushing means as described above, the load waiting to be stored on the roller conveyor 2a is irrespective of the front-rear length of the load W. The load W1 can be sequentially separated one by one and paid out onto the workbench 1.

The push-up roller 15 pushes up the front side of the load W1 and only pushes the load W1 on the inclined roller conveyor 2a by the pushing force of the following loads W2, W3,. Since the load W1 can be discharged onto the work table 1 by a simple means, it can be configured at a lower cost than a conventional apparatus.

Push-up roller 15 as push-up member 12
Can be used in place of at least one transport roller R of the roller conveyor 2a, so that it is not necessary to separately provide a dedicated push-up roller, and cost can be reduced.

Further, by providing the tip of the roller conveyor 2a with the front end inclined downward, the following load W2,
.. Can be moved forward on the roller conveyor 2a by its own weight, so that there is no need to provide a pushing means having a complicated structure such as a pusher, and the cost can be reduced.

In addition, the stopper 5 is connected to the roller conveyor 2.
Since it is composed of the bracket 7 protruding above the frame 6a and the roller 8 rotatably supported at the upper end thereof, when the load W rides on the stopper 5 and is dispensed,
Since the slide between the load W1 and the stopper 5 is eliminated, the load W is prevented from being damaged, and is smoothly discharged.

The stopper in the above embodiment is
Although described as a configuration provided at the front end of the roller conveyor 2a, it may be configured by a step between the work table 1 and the front end of the roller conveyor 2a.

Next, a description will be given of a second embodiment of the load discharging device in the conveyor according to the present invention. FIG. 5 is a side view of a roller conveyor provided with a load discharging device according to a second embodiment of the present invention. The same components as those described above are denoted by the same reference numerals, and redundant description will be omitted.

In the roller conveyor according to the present embodiment, the pushing means has a configuration in which a part or all of the transport rollers of the roller conveyor are configured as drive rollers.

In FIG. 5, reference numeral 24 denotes a roller conveyor according to the second embodiment. The roller conveyor 24 is installed horizontally with respect to the work table 1, and has a front end located downstream as in the above-described embodiment. Unit is connected.

A plurality of drive rollers 27 are supported at equal intervals on the upper surface of the frame 6.
Is wound around a drive shaft 25 rotatably supported along the longitudinal direction on the bottom surface of the frame 6 via a belt 28 on a pulley 26 arranged corresponding to each drive roller 27.

A pulley 30a is fixed to one end of the drive shaft 25, and a pulley 30b of the electric motor M is fixed to the pulley 30a.
Is passed over the belt 29.

According to the dispensing device configured as described above, as shown in FIG. 5, a plurality of loads W1, W2, W3
Are stored and awaited on the roller conveyor 24 in a state of contact with the push-up roller 15 in front of the roller conveyor 24.

This storage standby state is the same as the state shown in FIG. 4A, and each drive roller 27 of the roller conveyor 24 is driven by the electric motor M.

In this state, when the lifting roller 15 is raised as shown in FIG. 4B, the foremost load W1
, The front end of which is tilted upwardly of the stopper 5, and in conjunction with this tilting operation, the following loads W2, W3,. Extruded.

The following operation is the same as the operation of FIGS. 4C and 4D described in the above embodiment, and a duplicate description will be omitted.

As described above, in this embodiment, the pushing means is moved to the roller conveyor 2 below the following loads W2, W3,.
Part or all of the rollers of No. 4 as drive rollers 27,
By forcibly moving the following loads W2, W3... Forward, there is no need to provide a pushing means having a complicated structure such as a pusher, so that the cost can be reduced.

Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and even if there are changes and additions without departing from the gist of the present invention. Included in the invention.

[0055]

According to the present invention, the following effects can be obtained.

(A) According to the first aspect of the invention, regardless of the length of the load, the load at the forefront can be sequentially and reliably discharged one by one to the work space.

(B) According to the second aspect of the invention, the lifting member pushes up the front side of the load, and the pressing means pushes the load forward by simple means. Since it can be paid out to the working space, it is inexpensive as compared with the conventional device.

(C) According to the third aspect of the present invention, there is no need to separately provide a dedicated push-up roller, so that the cost can be reduced.

(D) According to the fourth aspect of the invention, there is no need to provide a pushing means having a complicated structure such as a pusher, so that the cost can be reduced.

(E) According to the fifth aspect of the invention, there is no need to provide a pushing means having a complicated structure such as a pusher, so that the cost can be reduced.

(F) According to the invention described in claim 6, a stopper for a subsequent load is not required, and the load is moved forward until it comes into contact with a subsequent load lifting roller. Extruded reliably on top.

(G) According to the seventh aspect of the invention, when the load rides on the stopper and is discharged, the slide does not slide between the load and the stopper, thereby preventing damage to the load and smoothly discharging the load. Is done.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a roller conveyor provided with a load discharging device according to a first embodiment of the present invention is connected to a work table.

FIG. 2A is a side view of the dispensing device showing a state where a push-up roller is raised, and FIG. 2B is a side view of the dispensing device showing a state where the push-up roller is lowered.

FIG. 3 is a plan view of the dispensing device.

4 (a) to 4 (d) are explanatory diagrams showing a load discharging operation.

FIG. 5 is a side view of a roller conveyor provided with a load discharging device according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Work table (work space) 2a, 2b Roller conveyor 5 Stopper 6 Frame 7 Bracket 8 Roller 9 Fixed frame 10 Support shaft 11 Swing frame 12 Push-up member 13 Horizontal frame 14a, 14b Stand 15 Roller 16 Axis 17 Lever 18 Air Cylinder 19 Cylinder rod 20, 22 Support shaft 24 Roller conveyor 25 Drive shaft 26 Pulley 27 Drive roller 28, 29 Belt 30a, 30b Pulley B Crossbar M Electric motor P Worker R Transport roller W, W1, W2 Load W3 Load

Claims (7)

[Claims] In a state in which a front side of a foremost load among a plurality of loads stored on a roller conveyor adjacent to a work space is pushed up, this load is moved to a predetermined front position with a subsequent load. Pushing forward by moving it,
A method of discharging a load on a conveyor, wherein the load is transferred onto the work space. 2. A stopper for a load conveyed on the roller conveyor is provided at a front end of the roller conveyor provided adjacent to the work space, and a front end is provided at an appropriate position on the roller conveyor upstream of the stopper. A push-up member that pushes up at least the front bottom surface of the load of the part until the lower end surface of the load is located above the stopper is provided so as to be able to move up and down by lifting means, and pushes the load at the forefront forward. A device for discharging a load on a conveyor, comprising a pushing means. 3. The apparatus according to claim 2, wherein the push-up member uses at least one of the roller conveyors as a push-up roller. 4. The conveyor according to claim 2, wherein the roller conveyor is tilted forward, and a force for a subsequent load to move forward on the roller conveyor by its own weight is used as a pressing means of the foremost load. Load unloading device. 5. A means for pushing a foremost load by forcibly moving a subsequent load forward by using a part of a roller of a roller conveyor below a subsequent load as a drive roller. A device for discharging a load on a conveyor according to claim 1. 6. The apparatus according to claim 2, wherein the push-up roller also serves as a stopper for a subsequent load when the roller protrudes upward. 7. The apparatus according to claim 2, wherein the stopper is a rotatable roller-type stopper.