JP3747088B2 - Feeder conveyor device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a feeder conveyor device that supplies a conveyed product to a sorting device.
[0002]
[Prior art]
For example, returned articles such as magazines, books, video tapes, cassette tapes, and the like are stored in a predetermined place by a bar code provided on each article.
For this reason, conventionally, the workers returned these articles one by one on the belt conveyor, and the sorting was carried into the apparatus by the belt conveyor.
[0003]
[Problems to be solved by the invention]
However, when these returned articles are put on the belt conveyor and conveyed, each article is scattered on the belt conveyor, and it is necessary to align the direction thereof manually.
[0004]
Therefore, it is conceivable to carry the product by using an inclined conveyor. However, since it is not possible to level the aligned articles, it is not practical to carry in the sorting apparatus smoothly and is not practical.
Also, if the loading operation is fast at the time of the loading operation, or if two of them are accidentally dropped simultaneously, the articles overlap on the belt conveyor and cannot be carried into the sorting device, so it is necessary to eliminate the overlapping manually. .
[0005]
Furthermore, it is necessary to read the bar code before loading into the sorting device, and based on this, it is necessary to facilitate sorting within the sorting device. Reading was difficult.
Therefore, in order to read the barcode of the article on the belt conveyor, it is necessary to place the article so that the barcode is on the upper side, which causes a significant loss of work efficiency.
[0006]
The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a feeder conveyor device that can be placed in a horizontal state after aligning an input article on one side without manual intervention. It is to provide.
It is another object of the present invention to provide a feeder conveyor device that can eliminate the overlap of articles that have been thrown in and that can be placed in a horizontal state after being aligned on one side.
[0007]
Another object of the present invention is to provide a feeder conveyor that can remove the overlap of articles that have been thrown in without being manually placed, can be placed in a horizontal state after being aligned on one side, and can read barcodes in two vertical directions. To provide an apparatus.
[0008]
[Means for Solving the Problems]
According to the first aspect of the present invention, the feeding belt conveyor installed with the conveying surface inclined at a right angle to the conveying direction, the conveying belt connected to the feeding belt conveyor, and the conveying surface inclined at substantially the same angle as the inclination is installed. or disconnect a belt conveyor that is, concatenated with the disconnecting belt conveyor, the slope and is substantially disposed inclined to the conveying surface at the same angle, the conveyance speed is substantially the same speed of the disconnecting belt conveyor, conveying the time of driving stop A conveyance roller that follows the inertia of the object, a separation roller conveyor having a conveyance length equal to or longer than a set interval between conveyance objects, and the separation roller conveyor connected to the separation roller conveyor, and the conveyance surface is moved horizontally from the inclination, Between the separation belt conveyor and the twisting belt conveyor, which is substantially the same conveying speed when driven, and between the separation belt conveyor and the separation roller conveyor A gap detector that detects the interval between the conveyed objects, and the detection of a certain article such that the distance between the conveyed objects is equal to or greater than a set interval based on a signal from the gap detector until the next article is detected If the time is less between the predetermined time, the charged conveyor belt, performs the stopping of the driving device of the disconnecting belt conveyor and said disconnecting roller conveyor, and a control unit for the activation of the driving device according to then set time A separation control mechanism, and the separation belt conveyor is capable of setting a conveyance speed faster than the input belt conveyor so that separation exceeding the minimum detection distance of the gap detector can be performed between the input belt conveyors. It is characterized by this.
[0013]
(Function)
In the present invention, when the conveyed product is thrown into the input belt conveyor, the conveyed product descends to the bottom side of the input belt conveyor due to the inclination of the input belt conveyor, and the lower side is in contact with the bottom surface of the input belt conveyor It is conveyed by. In the next separation belt conveyor, the conveyed product is similarly inclined and conveyed. The separation belt conveyor can set the conveyance speed faster than the introduction belt conveyor so that separation to provide a predetermined minimum gap can be performed between the introduction belt conveyors even when there is an overlap of conveyed objects at the time of introduction. In addition, the distance between the transported objects is maintained at a minimum gap or more. In the next separating roller conveyor, the conveyed product is similarly inclined and conveyed. When the gap detector, which is arranged between the separation belt conveyor and the separation roller conveyor and detects the interval between the conveyed items, detects that the interval between the conveyed items is equal to or less than the predetermined interval, the control device indicates that signal. Based on this, the stop and start of the drive device for the separation belt conveyor and other are controlled. Then, during normal running, the conveyed product sent from the preceding separation belt conveyor is transferred to the next twist belt conveyor. In the next twist belt conveyor, the conveyed product is changed to a horizontal state.
In the present invention, if the time from when the gap detector detects a passing article until the next article is detected is equal to or shorter than a predetermined time, the articles are too close to each other. A stop command is issued to the input belt conveyor, the separation belt conveyor, and the separation roller conveyor drive device, and the input belt conveyor, the separation belt conveyor, and the separation roller conveyor are stopped. As a result, the article on the downstream side is transferred to the twist belt conveyor that is not stopped due to inertia even if it is on the separation roller conveyor at the time of stopping, and is sent downstream. Accordingly, an article that has been too close is separated. When a predetermined time elapses from the stop, the control device issues a start command to the driving devices of the feeding belt conveyor, the separation belt conveyor, and the separation roller conveyor, and activates the loading belt conveyor, the separation belt conveyor, and the separation roller conveyor.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0019]
1 to 8 show an embodiment of the invention of claim 1.
In the figure, reference numeral 1 denotes an input belt conveyor. As shown in FIGS . 4 and 7 , the charging belt conveyor 1 is configured such that the belt conveyor 2 is inclined at an angle θ = 20 ° with respect to the base 3. A conveyor guide 4 is attached to the bottom surface side of the belt conveyor 2. The belt conveyor 2 is driven by a motor (not shown). Further, a belt conveyor 11 is provided along a longitudinal direction in a part of the conveyor guide 4 of the charging belt conveyor 1.
[0020]
Here, it is preferable that the surface of the belt conveyor 2 and the conveyor guide 4 is made slippery, for example, by applying a Teflon (registered trademark) coat.
5 is a twist belt conveyor. As shown in FIG. 5 , the twist belt conveyor 5 includes, for example, five carrier rollers 6 a to 6 e that are 20 °, 15 °, 10 °, 5 ° so that the inclination θ with respect to the base 7 becomes horizontal from 20 °. In addition to being rotatably installed in the order of 0 ° and 0 °, 12 polymax belts (multi-strip belts) 8 are stretched. A conveyor guide 9 is attached to the bottom side of the twist belt conveyor 5. The twist belt conveyor 5 is driven by a motor (not shown).
[0021]
As the twist belt conveyor 5, it is desirable to use a flat belt (dacoless conveyor) instead of the polymax belt 8 when conveying magazines. This is because in the case of the polymax belt 8, if the cover of the magazine is bent, a bent portion may enter under the polymax belt 8 and the magazine may be damaged.
[0027]
Reference numeral 10 denotes a work table.
Further, a separation belt conveyor 12 that is installed at an inclination and whose speed can be variably controlled, and a separation roller conveyor 13 that is installed at an inclination are added between the input conveyor 1 and the twist conveyor 5 .
Here, the separation belt conveyor 12 has the same configuration as the input belt conveyor 1 except that the motor can be variably set . In the present embodiment, the speed of the separation belt conveyor 12 is set to 0 to 58 m / min. The speed of the input belt conveyor 1 was 45 m / min. Reference numeral 16 denotes a conveyor guide.
[0028]
As shown in FIG. 6 , the separation roller conveyor 13 has the roller conveyor 17 installed at an inclination θ = 20 ° with respect to the base 18. A conveyor guide 19 is attached to the bottom surface side of the roller conveyor 17. The roller conveyor 17 is driven by a motor (not shown). The speed was 58 m / min.
Between the separation belt conveyor 12 and the separation roller conveyor 13, transmission type gap detectors 14 and 14 are arranged. The gap detectors 14 and 14 communicate with the control device 15 and control driving of the separation belt conveyor 12 and other motors (not shown) so that the interval between the conveyed objects is maintained at a predetermined value.
[0029]
Next, the operation of the present embodiment will be described.
Here, an operation when the present embodiment is applied to a feeding device before sorting books will be described.
First, the book B is prepared as a conveyed product on the work table 10, and the motors of the input belt conveyor 1, the twist belt conveyor 5, the separation belt conveyor 12, and the separation roller conveyor 13 are driven.
Next, when the operator A inputs the book B into the input belt conveyor 1, the book B descends to the conveyor guide 4 on the bottom side of the belt conveyor 2 while sliding on the surface of the belt conveyor 2 of the input belt conveyor 1. And this book B is conveyed in the arrow direction by the belt conveyor 2 in the state which contact | abutted the lower part side on the bottom face of the conveyor guide 4. FIG.
When the book B of the loading belt conveyor 1 is loaded, the book B descends while sliding on the surface of the belt conveyor 2, so when the belt conveyor 2 and the conveyor guide 4 that are slippery with Teflon (registered trademark) or the like are used, When the book B is received by the conveyor guide 4 on the side, since the static frictional resistance is given to the conveyed product on the belt, the posture of the book B is difficult to be stabilized. In order to prevent this, by providing a belt conveyor 11 along a longitudinal direction in a part of the conveyor guide 4 of the input belt conveyor 1, the movable guide 11 composed of the belt conveyor is formed in parallel with the conveyor guide 4. The book B lowered onto the movable guide 11 moves with the belt conveyor 2 and does not break the posture.
Thereafter, while performing separation control by the separation belt conveyor 12 and the separation roller conveyor 13, when it comes to the next twist belt conveyor 5, the twist belt conveyor 5 conveys while changing the inclination θ of the book B from 20 ° to 0 ° sequentially. To do. During this time, the lower side of the book B slides on the conveyor guide 9.
Then, the book B changed to the horizontal state is discharged from the twist belt conveyor 5. On the downstream side of the twist belt conveyor 5, there is a sorting device (not shown), which sorts the book B.
In the present embodiment, the separation control means the following matters.
In the case of book B, the interval between book B and book B needs to be separated by 203.2 mm or more as a delivery condition to the automatic sorting device (sorter).
[0030]
The feeder conveyor according to the present embodiment is manually inserted one by one, but in a small book B such as a comic book, the interval between the books B may be smaller than 203.2 mm.
Therefore, before delivery to the sorter side, the separation control for securing the interval of the book B by 203.2 mm or more by the feeder conveyor according to the present embodiment is required.
[0031]
In the present embodiment, the interval between the books B that is the target of the separation control is set to 220 mm.
Since the maximum speed of the sorter applied in this embodiment is 60 m / min, the speed of the feeder conveyor according to this embodiment cannot exceed the speed of the sorter conveyor. Therefore, the speed of the feeder conveyor according to the present embodiment is 58 m / min.
[0032]
Next, the book B in the present embodiment is not particularly limited, but the bean size (86W × 148L) to B4 size (257W × 36L), the thickness 2 mm to 65 mm, and the weight average 0.4 kg / book If there is no problem, it can be processed.
Next, separation by speed difference will be described.
The gap detectors 14 and 14 detect the gap between the book B1 and the book B2. That is, it is monitored whether the gap is 220 mm. Here, the minimum detection distance is 10 mm (experimental value).
[0033]
Therefore, it is necessary to open 10 mm or more between the book B1 and the book B2.
Therefore, the separation amount X due to the speed difference between the input belt conveyor 1 and the separation belt conveyor 12 is calculated.
When a minimum of 148 mm (Mamemoto) flows with a gap of 0, the result is as follows.
X = (148 + 148) / 2 (58 / 45-1) = 42.8 mm
This is because the gap detectors 14 and 14 can sufficiently detect the gap.
[0034]
However, when the loading operation is fast or when two books are mistakenly loaded at the same time, the gap between the books B may be smaller than 220 mm.
In this case, the separation control based on the speed difference between the input belt conveyor 1 and the separation belt conveyor 12 cannot be performed.
In this case, the gap detectors 14 and 14 monitor whether or not the gap between the book B1 and the book B2 is 220 mm. If the gap is less than 220 mm, the separation belt conveyor 12 is started and stopped. The gap is set to 220 mm or more.
[0035]
This will be explained with reference to FIG. Here, for convenience, the speed of the feeder conveyor according to the present embodiment is 60 m / min (1000 mm / sec). That is, the gap of 220 mm indicates 0.22 seconds.
(1) At the moment when the book B1 passes through the gap detectors 14 and 14 , the gap detectors 14 and 14 are switched from ON to OFF. At this time, the control device 15 starts a timer count.
[0036]
(2) And at the first moment when the book B2 crosses between the gap detectors 14 and 14 , the gap detectors 14 and 14 are switched from OFF to ON.
Here, the time from (1) to (2) is T seconds.
If T ≧ 0.22 seconds, the operation is continued.
In the case of T <0.22 seconds, the input belt conveyor 1, the separation belt conveyor 12, and the separation roller conveyor 13 are stopped instantaneously. At this time, the book B2 moves about 100 mm from the gap detectors 14 and 14 due to inertia and stops on the separation roller conveyor 13. Even if the book B1 is on the separation roller conveyor 13 at the time of stopping, it is transferred to the twist belt conveyor 5 by inertia and sent downstream.
[0037]
(3) The restart of the input belt conveyor 1, the separation belt conveyor 12, and the separation roller conveyor 13 is further counted from the stop of the input belt conveyor 1, the separation belt conveyor 12, and the separation roller conveyor 13, and T = 0.22 seconds. Do it when it becomes.
(4) Since acceleration time is required at the time of restart, the gap between the book B1 and the book B2 is 220 mm or more as a result.
[0038]
9 to 11 show an embodiment of the present invention.
In this embodiment, with respect to the embodiment shown in FIG. 1, is obtained by consecutively reading data conveyor 20 arranged bar code reader 23, 23 up and down.
The data reading conveyor 20 is composed of two roller conveyors 21 and 22. The latter roller conveyor 22 is connected to an automatic sorting device (not shown).
[0039]
In this embodiment, since the front and back of the book B sent from the twist belt conveyor 13 cannot be specified, the bar code readers 23 and 23 read from the top and bottom of the roller conveyors 21 and 22.
Therefore, when loading into the loading belt conveyor 1, the work of checking the front and back of the book B one by one becomes unnecessary.
[0040]
In the above embodiment, the book has been described as a transported object. However, the present invention is not particularly limited as long as it is a single unit such as a video tape or a cassette tape.
[0041]
【The invention's effect】
As described above, according to the first aspect of the present invention, it is possible to align the belt conveyor to one side only by charging the conveyed product, and then change it to the horizontal state by the twist belt conveyor. Compared to the devices arranged in this way, it is possible to perform processing only by the input work.
[0042]
In addition, according to the present invention, by setting a difference in transport speed between the feeding belt conveyor and the separating belt conveyor in advance, a gap of at least the minimum detection distance must be provided between the transported objects even if they overlap at the time of feeding. In addition, a gap detector is provided only between the separating belt conveyor and the separating roller conveyor, and a simple control for stopping and starting the conveyors other than the twist belt conveyor is used to perform a simple operation between the conveyed items. When the interval is equal to or less than the predetermined interval, the speed can be variably controlled, and the interval between the conveyed objects can be maintained at a predetermined interval or more .
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing an embodiment of the invention of claim 1 ;
FIG. 2 is a schematic plan view of FIG.
FIG. 3 is a schematic side view of FIG. 1;
4 is a schematic perspective view of the input belt conveyor of FIG. 1. FIG .
5 is a schematic longitudinal sectional view of the charging belt conveyor of FIG . 1. FIG .
6 is a schematic longitudinal sectional view of the twist belt conveyor of FIG . 1 ;
7 is a schematic longitudinal sectional view of the separation roller conveyor of FIG . 1. FIG .
FIG. 8 is a diagram for explaining the detachment control in FIG . 1 ;
FIG. 9 is a schematic perspective view showing an embodiment of the present invention .
10 is a schematic plan view of FIG. 9. FIG.
11 is a schematic side view of FIG. 9. FIG.
12 is a schematic longitudinal sectional view of the roller conveyor of FIG . 9 ;
13 is a schematic longitudinal sectional view of the roller conveyor of FIG .
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Input belt conveyor 2 Belt conveyor 4, 9, 16, 17, 19 Conveyor guide 5 Twist belt conveyors 6a-6e Carrier roller 10 Work table 11 Moving guide 12 Separation belt conveyor 13 Separation roller conveyor 14 Gap detector 15 Control device 20 Data Reading conveyor 21 Roller conveyor 23 Bar code reader A Worker B Book

Claims (1)

A loading belt conveyor installed with the conveying surface inclined in a direction perpendicular to the conveying direction;
A separation belt conveyor connected to the input belt conveyor and installed with a conveying surface inclined at substantially the same angle as the inclination,
Concatenated with the disconnecting belt conveyor, the slope and is substantially disposed inclined to the conveying surface at the same angle, said a conveying speed substantially the same speed for detaching the belt con conveyor, follow the inertia of the transported material at the time of driving stop A separation roller conveyor having a conveyance roller and a conveyance length that is longer than a set interval between conveyance objects;
A twist belt conveyor that is connected to the separation roller conveyor and moves the conveyance surface horizontally from the inclination, and has the same conveyance speed as the separation roller conveyor when driven.
A gap detector that is disposed between the separation belt conveyor and the separation roller conveyor and detects a distance between conveyed items;
If the time until detection of the detection end after the next article the article in such interval is equal to or greater than the set distance between conveyed objects on the basis of the signal of the gap detector is less between the predetermined time, the charged conveyor belt A separation control mechanism comprising a control device for stopping the drive devices of the separation belt conveyor and the separation roller conveyor and then starting each drive device according to a set time,
The feeder belt conveyor is configured so that a conveying speed can be set faster than the feeding belt conveyor so that separation exceeding the minimum detection distance of the gap detector can be performed between the feeding belt conveyors. apparatus.

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