KR102202193B1 - Pop-down driving type article classification apparatus and method of classifying articles using the same - Google Patents

Abstract

According to one embodiment of the present invention, a pop-down driving type cargo classification device includes: a first conveyor into which cargos are introduced; a second conveyor allowing the introduced cargos to branch; and a control part identifying information on the cargos introduced into the first conveyor and lowering one side of the first conveyor so that the cargos can be moved along the second conveyor. Therefore, the pop-down driving type cargo classification device can automatically classify various cargos at a high speed.

Description

POP-DOWN DRIVING TYPE ARTICLE CLASSIFICATION APPARATUS AND METHOD OF CLASSIFYING ARTICLES USING THE SAME}

The present invention relates to a cargo classification device of a pop-down driving method and a cargo classification method using the same, and more specifically, by automatically classifying cargo using identification information of cargo moving on a conveyor, various and large amounts of cargo are The present invention relates to a cargo sorting device of a pop-down driving method capable of automatically classifying cargo at high speed in a handling terminal and a cargo classification method using the same.

In general, a sorting device such as a wheel sorter, a cross belt, and a tilt tray is used to automatically sort cargo in Korea. These sorting devices can quickly move the goods to the desired location, but the size of the sorting device increases to secure the minimum space required for sorting each piece of cargo, and it can be used in terminals where space for installation is not secured. There are limits that cannot be counted.

In addition, the above-described sorting apparatus has a problem in that the items that can be handled according to the properties of the cargo are limited. For example, cargo classification using a tilt tray is limited in the size of cargo that can be classified because the size of the tray is specified, and cargo classification using a wheel sorter is related to the wheel according to the packaging material (eg, vinyl, sacks) of the cargo. Since the cargo can be damaged by friction, the types of cargo that can be handled may be limited.

In addition, when a cargo that moves in a straight line is branched and moved at a right angle, the cargo collapses due to inertia or the cargo rotates, which may cause problems in the overall logistics flow.

Therefore, there is no limitation on the types of cargo that can be handled, and a new driving type cargo sorting device capable of securing a minimum space for inputting cargo is required, and the present invention has been proposed for this.

Republic of Korea Patent Publication No. 10-1817325 (2018.01.04.)

The technical problem to be solved by the present invention is to provide a cargo classification device and a cargo classification method capable of branching cargo to respective conveyors using identification information of cargo without limitation on the physical properties of cargo such as cargo weight, size, and packaging status. It aims to do.

Another technical problem to be solved by the present invention is to provide a cargo classification device and a cargo classification method capable of solving a branching error due to a change in motion state in consideration of not only the physical properties of the cargo, but also the movement speed of the cargo on the conveyor. do.

Another technical problem to be solved by the present invention is to provide a cargo classification device capable of overcoming terminal space restrictions by minimizing the volume of a classification device for sorting cargo.

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

A cargo sorting apparatus of a pop-down driving method according to an embodiment of the present invention recognizes information on a first conveyor for entering a cargo, a second conveyor for branching the entered cargo, and a cargo entering the first conveyor. And a control unit lowering one side of the first conveyor so that the cargo can move along the second conveyor.

According to an embodiment, the first conveyor includes a plurality of transfer belts arranged parallel to the entry direction of the cargo and a first motor driving the plurality of transfer belts, and the plurality of transfer belts It may include an elevating part for returning one side to the position before descending or descending.

According to an embodiment, the second conveyor includes a plurality of rollers disposed between the plurality of conveying belts and branching the cargo in a direction perpendicular to the entry direction of the cargo and a second motor driving the plurality of rollers. It may include a second driving unit to include.

According to an embodiment, a height of an upper surface of the plurality of conveying belts in a partial region may be higher than that of an upper surface of the plurality of rollers based on a length direction.

According to an embodiment, the plurality of conveying belts may be disposed to be inclined at a predetermined angle so that the plurality of conveying belts face the floor as they move away from the entry direction of the cargo.

According to an embodiment, the plurality of transfer belts are disposed on one side to be lowered, and may further include a departure preventing unit for preventing separation of the cargo seated on the first conveyor.

According to an embodiment, the separation prevention unit may include a separation prevention member disposed between the plurality of transfer belts and the plurality of rollers, and a third motor for vertically moving the separation prevention member.

According to an embodiment, the control unit may control a driving timing of the first driving unit and the elevator unit based on the information of the cargo and the entry speed of the cargo.

According to an embodiment, the information on the cargo may include at least one or more of a size, weight, and image code attached to the cargo.

According to an embodiment, the control unit may determine whether the departure preventing unit is driven based on the information on the cargo.

According to an embodiment, when it is determined that the departure prevention unit is driven, the control unit controls the driving timing of the departure prevention unit according to the driving timing of the first driving unit and the lifting unit, and based on the information of the cargo. The operation of the departure prevention unit may be controlled.

According to an embodiment, in the plurality of conveying belts, a gap between adjacent conveying belts may be smaller than a minimum length of a cargo entering the first conveyor.

According to an embodiment, the first driving unit includes a driving shaft penetrating the plurality of transfer belts in an area corresponding to a point at which the cargo enters, and the elevating unit moves the plurality of transfer belts around the drive shaft. It can be lowered or returned to the position before lowering.

According to an embodiment, the plurality of conveyance belts may be made of a non-slip material on one surface that contacts the cargo.

According to an embodiment, the second driving unit may include a roller having a diameter gradually larger in a direction perpendicular to the entry direction of the cargo based on the diameter of the roller disposed at the center of the cargo sorting device.

A cargo classification method according to another embodiment of the present invention is a method of classifying cargo using a cargo sorting device including first and second conveyors, the step of recognizing information on cargo entering the first conveyor , Controlling the driving timing of the transfer belt of the first conveyor according to the recognized information of the cargo, lowering one side of the first conveyor to branch the cargo, and the second conveyor according to the information of the cargo It includes the step of driving the roller of.

According to an embodiment, the step of lowering one side of the first conveyor may further include determining and controlling whether to drive a departure preventing unit for preventing separation of the cargo seated on the first conveyor. .

According to an embodiment, the information on the cargo includes at least one of information on the entry speed of the cargo, the size and weight of the cargo, and an image code attached to the cargo, and after the step of driving the roller of the second conveyor The step of returning one side of the first conveyor to a position before lowering may be further included according to a driving time of the second conveyor.

According to the present invention, it is possible to automatically classify various cargoes at high speed without any restrictions on the physical characteristics of the cargo.

In addition, by synchronizing the control signal of the driving motor in the direction of entry of the cargo and the direction of branching, the time consumed in the process of branching the cargo left and right and the time during which the distribution state changes may be minimized.

In addition, since the operation of entering and branching cargo is performed in one sorting device, the volume of the sorting device is reduced, so that the sorting device can be applied in a complex conveyor structure environment, and the volume occupied by the sorting device in the terminal is minimized. You can use the space of the terminal.

In addition, the width, length, and number of conveying belts of the cargo sorting device can be adjusted according to the width of the conveyor to which the cargo sorting device is applied and the type of cargo mainly handled, so that it can be flexibly applied to the site.

In addition, because the inertia does not cause the cargo to fall or rotate, there is no need for manpower to properly load the cargo on the conveyor, thereby reducing labor costs and increasing unloading productivity.

In addition, by configuring the separation prevention unit that moves up and down in the cargo sorting device, it is not restricted by the packaging state of the cargo (eg, plastic packaging, bag packaging), and various packaging types of cargo can be handled in addition to general cargo packaging.

In addition, unlike in the past, where the type of cargo that can be moved by each sorting device was limited, goods can be automatically classified based on the recognition/identification information and movement speed of the cargo regardless of the type of cargo, which is the basis of domestic goods classification technology. And minimize the cost for driving the automation device.

The effects of the present invention are not limited to the above-mentioned effects, and other effects that are not mentioned will be clearly understood by those skilled in the art from the following description.

1 and 2 are diagrams schematically illustrating a pop-down driving of a cargo sorting apparatus of a pop-down driving method according to an exemplary embodiment of the present invention.
3 and 4 are views as viewed from the side of the cargo sorting apparatus 1000 according to an embodiment of the present invention.
5 is a view showing an interior view of the separation prevention unit of the cargo sorting device according to an embodiment of the present invention is arranged.
6 is a flow chart illustrating a flow of a method for sorting a freight of a freight sorting apparatus according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. The same reference numerals refer to the same components throughout the specification.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used as meanings that can be commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not interpreted ideally or excessively unless explicitly defined specifically. The terms used in the present specification are for describing exemplary embodiments and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase.

As used herein, "comprises" and/or "comprising" refers to the recited component, step, operation, and/or element, of one or more other elements, steps, operations and/or elements. It does not exclude presence or addition.

1 and 2 are diagrams schematically illustrating a pop-down driving of a cargo sorting apparatus 1000 of a pop-down driving method according to an exemplary embodiment of the present invention.

Referring to FIG. 1, the cargo sorting apparatus 1000 may include a first conveyor 100, a second conveyor 200, and a control unit 300.

As shown in FIG. 1, the cargo sorting device 1000 is an automated device capable of branching out cargo moving on a conveyor according to an operational purpose, and has a width for placing or passing cargo from the cargo sorting device 1000. Can have.

That is, the first conveyor 100 and the second conveyor 200 may be disposed to cross each other with a width enough to seat the cargo. Here, the first conveyor 100 may perform a function of entering the cargo into the cargo sorting apparatus 1000, and the second conveyor 200 may perform a function of branching the entered cargo.

The first conveyor 100 may include a first driving unit 110 to enter the cargo as described above, and specifically, the first driving unit 110 is a plurality of A transfer belt 111 and a first motor 113 driving the plurality of transfer belts 111 may be included.

On the other hand, in order to enter the cargo into the first conveyor 100, the distance (D) between the plurality of transfer belts 111 may be important. For example, if the distance between the adjacent conveying belts 111 is larger than the minimum length size of the cargo, an imbalance in contact between the conveying belt 111 and the surface of the cargo occurs, so that a certain physical force cannot be applied to the cargo. When entering the cargo sorting device 1000, the cargo rotates or twists.

Accordingly, the plurality of conveying belts 111 may prevent an imbalance between the conveying belt 111 and the contact surface of the cargo by arranging the gap between adjacent conveying belts 111 to be smaller than the minimum length of the cargo.

In addition, the plurality of conveying belts 111 are made of non-slip material on one side in contact with the cargo, and increase the contact resistance between the cargo and the conveying belt 111 when entering the cargo to prevent the cargo from falling or tilting due to its weight. I can.

On the other hand, the second conveyor 200 may also include a second driving unit 210 to branch the cargo as described above. Specifically, the second driving unit 210 is disposed between the plurality of transfer belts, and drives the plurality of rollers 211 and the plurality of rollers 211 that branch the cargo in a direction perpendicular to the entry direction of the cargo. It may include a motor 213.

In addition, the plurality of rollers 211 may be arranged with rollers 211 having different diameters in order to easily branch the cargo left and right. Specifically, the plurality of rollers 211 may arrange a roller 211 whose diameter gradually increases based on the diameter of the roller 211 disposed at the center of the cargo sorting device 1000. Accordingly, it is possible to prevent a situation in which cargo is caught or falls due to a difference in height between the cargo sorting apparatus 1000 and the connected conveyor.

On the other hand, as shown in the figure, the transfer belt 111 of the first conveyor 100 and the rollers 211 of the second conveyor 200 are disposed parallel to each other, but the cargo enters or branches off by each drive. In order not to be disturbed during the process, the plurality of transfer belts 111 may be installed higher than the plurality of rollers 211. Specifically, for example, a plurality of transfer belts 111 may be installed 40mm to 60mm higher than a plurality of rollers 211, and a plurality of transfer belts 111 may be provided on an upper surface in a partial area based on the length direction. The height of the plurality of rollers 211 may be higher than the height of the upper surface. Here, a partial region of the transfer belt 111 is determined according to the direction in which the plurality of transfer belts 111 are arranged, and a detailed description will be described later.

The controller 300 may perform a function of controlling the driving of the first conveyor 100 and the second conveyor 200. As shown in FIG. 2, the control unit 300 recognizes information on the cargo entering the first conveyor 100 and performs the work of the first conveyor 100 so that the cargo can move along the second conveyor 200. You can lower the side. Here, the cargo information may include at least one of the weight of the cargo, the size of the cargo, and at least one of the image codes attached to the cargo, and the type of cargo or handling precautions, consignee address, trunk line information, and delivery vehicle through the image code. Information, etc. can be confirmed.

The control unit 300 is based on the information of the cargo and the entry speed of the cargo moving toward the first conveyor 100, the first conveyor 100, that is, the first driving unit 110 and the lifting unit 120 to be described later. You can control the driving timing. For example, the distance between the point (P1) detecting the entry speed (v) of the cargo and the point (P2) where the transfer belt 111 of the first driving unit 110 starts, the length of the cargo (L), and The driving timing of the first driving unit 110 may be calculated based on the entry speed v, and the elevation unit 120 may be driven at a timing when the first driving unit 110 stops driving.

In this regard, FIGS. 3 and 4 are views as viewed from the side of the cargo sorting apparatus 1000 according to an embodiment of the present invention.

Referring to FIG. 3, the first driving unit 110 of the first conveyor 100 is moved to the inside of the cargo sorting device 100 for a predetermined time using the lifting unit 120 provided inside the cargo sorting device 100. It may be down. Here, the predetermined time means a time during which the cargo seated in the cargo sorting apparatus 1000 through the first conveyor 100 is branched at right angles to the left and right perpendicular to the entry direction through the second conveyor 200.

Here, the lifting unit 120 for lowering one side of the transfer belt 111 of the first driving unit 110 may be a cylinder driving device, and is disposed in a diagonal line within the cargo sorting device 100, and the lifting unit 120 As is rising or falling, the first driving unit 110 may descend into the interior of the cargo sorting device 100 or may be returned to a position before descending. However, the elevating unit 120 may be provided in the cargo sorting device 100 by consisting of various driving devices not limited thereto.

In addition, in order to minimize the height at which the first driving unit 110 descends and to minimize the distortion of the cargo branching according to the operation of the second conveyor 200, the plurality of transfer belts 111 are further separated from the entry direction of the cargo. It may be arranged to be inclined at a predetermined angle to face the floor.

Meanwhile, referring to FIG. 4, the first driving unit 110 includes a driving shaft 115 passing through the plurality of conveying belts 111 at a starting point for entering the cargo, and the driving shaft 115 and the first motor 113 ) Is connected through a chain.

Referring back to FIG. 3, the lifting unit 120 may lower the plurality of transfer belts 111 around the drive shaft 115 of the first drive unit 110 or return to a position before lowering.

5 is a view showing an interior view of the separation prevention unit 400 of the cargo sorting apparatus 100 according to an embodiment of the present invention is arranged.

Prior to the description of the departure prevention unit 400, the plurality of rollers 211 are connected by the timing belt 215, and can receive rotational power through the second motor 213 connected to the timing belt 215. have. In this case, in order to stably connect the timing belt 215 connecting the plurality of rollers 211, a plurality of timing belts may be provided on the second conveyor 200. Accordingly, the belt tension of the timing belt 215 can be maintained, and a load applied to the second motor 213 can be minimized while the plurality of rollers 211 rotate in the forward and reverse directions.

Referring to FIG. 5, in order to prevent the cargo from falling due to inertia due to the weight of the cargo at the moment the cargo enters, a departure prevention unit 400 is further included on one side of the plurality of transfer belts 111 to be lowered. I can. Specifically, the separation prevention unit 400 vertically moves the bar-shaped separation prevention member 411 and the bar-shaped separation prevention member 411 disposed between the plurality of transfer belts 111 and the plurality of rollers 211 By including the third motor 413 to move, it is possible to prevent the detachment of the cargo seated on the first conveyor 100.

Here, being disposed between the plurality of conveying belts 111 and the plurality of rollers 211 means that the conveying belt 111 and the rollers 211 adjacent to each other in the cargo sorting device 1000 are disposed at a contact point. It means that when the third motor 413 is driven, the separation preventing member 411 located inside the cargo sorting device 1000 protrudes from the gap between the adjacent belt 111 and the roller 211. .

The control unit 300 may determine whether the departure prevention unit 400 is to be driven or stopped based on the cargo information. Here, as a criterion for determining whether to drive, various criteria, such as whether the weight of the cargo is greater than or equal to a preset value based on the entry speed of the cargo (the entry speed of the conveyor), and the size of the cargo may be applied.

According to this criterion, when it is determined that the control unit 300 will drive the departure prevention unit 400, the driving time of the departure prevention unit 400 according to the driving time of the first driving unit 110 and the lifting unit 120 Can be controlled. That is, at the time when the driving of the first driving unit 110 is terminated and the lifting unit 120 is driven, the departure prevention unit 400 is driven to prevent separation from the cargo sorting device 1000 before the cargo is diverged to the left and right. can do.

So far, the cargo sorting apparatus 1000 of the pop-down driving method according to an embodiment of the present invention has been described. According to the present invention, the cargo sorting apparatus 1000 may be applicable even in a structure in which several conveyors are complicatedly entangled by providing a conveyor that performs an entry and branching function of an article in a minimized volume. In addition, since the cargo does not fall or rotate in the process of moving the cargo to the conveyor and the device, and the device and the conveyor, the manpower to manage and supervise it can be minimized. This can lead to a decrease in manpower and an increase in stevedoring productivity.

In addition, by providing a departure prevention part 400 on one side and configuring the transfer belt 111 of the first conveyor 100 with a non-slip material, the cargo is wrapped in a plastic bag with a small frictional force or a bag with a high frictional force. Even if it is configured, the cargo can be branched to the desired location without restriction.

In addition, since the cargo sorting apparatus 1000 can adjust its size according to the width of the conveyor to which it is connected and the characteristics of the cargo to be handled, there is an advantage applicable to various sites.

Hereinafter, a method of branching a cargo using the cargo sorting apparatus 1000 described above will be described.

6 is a flow chart illustrating a flow of a method for sorting a freight of the freight sorting apparatus 1000 according to an embodiment of the present invention.

Referring to FIG. 6, a cargo sorting apparatus 1000 including first and second conveyors 100 and 200 disposed in parallel to cross each other recognizes information on cargo entering the first conveyor 100. (S110). Here, the cargo information may include at least one of the weight of the cargo, the size of the cargo, and at least one of the image codes attached to the cargo, and the type of cargo or handling precautions, consignee address, trunk line information, and delivery through the image code. Vehicle information and the like can be confirmed.

After step S110, the cargo sorting apparatus 1000 controls the driving timing of the transfer belt 111 of the first conveyor 100 according to the recognized cargo information (S120). Specifically, the cargo sorting device 1000 is based on the distance between the first conveyor 100 and the point at which the cargo entry speed (v), the width and length of the cargo, and the cargo entry speed (v) are detected. The time point of reaching the first conveyor 100 can be predicted, and the transfer belt 111 can be driven according to the time point of reaching the first conveyor 100.

After step S120, the cargo sorting apparatus 1000 determines whether the cargo has entered the first conveyor 100 (S130), and when it is determined that the cargo has entered, one side of the first conveyor 100 is It descends (S140, YES).

However, when it is determined that the cargo has not entered the first conveyor 100 in step S130, the first conveyor 100 may be continuously driven (S120, NO).

Meanwhile, at the same time as performing step S140, since there is a risk that the cargo seated on the first conveyor 100 may fall due to inertia, the cargo sorting device 1000 prevents separation provided on one side of the first conveyor 100 It is determined whether to drive the unit 400 (S140-1), and control accordingly (S140-2, YES). For reference, one side on which the departure prevention part 400 is provided may be the same as a side on which a part of the first conveyor 100 descends.

In addition, the cargo sorting device 1000 includes a departure prevention unit according to various criteria such as whether the weight of the cargo is greater than or equal to a preset value based on the entry speed of the cargo (the entry speed of the conveyor), and the size of the cargo is equal to or greater than a preset size. 400) can be determined.

That is, in the case of cargo in which the departure prevention unit 400 is to be operated, the cargo sorting device 1000 may drive the separation prevention unit 400 at the same time as when one side of the first conveyor 100 is lowered. have.

After step S140, the cargo sorting apparatus 1000 drives the rollers 211 of the second conveyor 200 according to the information of the cargo as the first conveyor 100 descends (S150).

After step S150, the cargo sorting apparatus 1000 returns one side of the first conveyor 100 to the position before descending according to the driving time of the second conveyor 200, and then completes preparation for entering the cargo. I can. That is, if the cargo is branched to the left or right based on the entry direction through the second conveyor 200, the first conveyor 100 may be returned to its original position immediately after branching is completed.

So far, a cargo classification method performed by the cargo classification apparatus 1000 according to an embodiment of the present invention has been described. According to the present invention, by synchronizing a control signal of a driving motor in a direction of entry of a cargo and a branch direction, it is possible to minimize the time consumed in the process of branching the cargo left and right and the time during which the distribution state changes.

In addition, unlike in the past, where the type of cargo that can be moved by each sorting device was limited, goods can be automatically classified based on the recognition/identification information and movement speed of the cargo regardless of the type of cargo, which is the basis of domestic goods classification technology. And minimize the cost for driving the automation device.

Embodiments of the present invention have been described above with reference to the accompanying drawings, but those of ordinary skill in the art to which the present invention pertains can be implemented in other specific forms without changing the technical spirit or essential features. You can understand. Therefore, it should be understood that the embodiments described above are illustrative and non-limiting in all respects.

1000: cargo sorting device
100: first conveyor
110: first driving unit
111: transfer belt
113: first motor
115: drive shaft
120: elevator
200: second conveyor
210: second driving unit
211: roller
213: second motor
215: timing belt
300: control unit
400: departure prevention unit
411: departure prevention member
413: third motor

Claims (18)

A first conveyor for entering the cargo;
A second conveyor to branch the entered cargo; And
A control unit for recognizing information on cargo entering the first conveyor and lowering one side of the first conveyor so that the cargo can move along the second conveyor;
Including,
The second conveyor,
It is disposed between the plurality of conveying belts, and includes a second driving unit including a plurality of rollers branching the cargo in a direction perpendicular to the entry direction of the cargo and a second motor driving the plurality of rollers,
The second driving unit,
Comprising a roller whose diameter gradually increases in a direction perpendicular to the entry direction of the cargo based on the diameter of the roller disposed at the center of the cargo sorting device,
Load sorting device with pop-down drive. The method of claim 1,
The first conveyor,
A first driving unit including a plurality of transfer belts disposed in parallel with the entry direction of the cargo and a first motor driving the plurality of transfer belts; And
An elevating unit for returning one side of the plurality of transfer belts to a position before descending or descending;
Pop-down drive type cargo sorting device comprising a. delete The method of claim 1,
The plurality of transfer belts,
The height of the upper surface in some areas based on the length direction is higher than the height of the upper surface of the plurality of rollers,
Load sorting device with pop-down drive. The method of claim 4,
The plurality of transfer belts,
Arranged to be inclined at a predetermined angle so that the plurality of conveying belts face the floor as the moving away from the entry direction of the cargo
Load sorting device with pop-down drive. The method of claim 4,
A departure preventing unit disposed on one side on which the plurality of transfer belts are descended, and preventing separation of the cargo seated on the first conveyor;
A cargo sorting device of a pop-down driving method further comprising a. The method of claim 6,
The departure prevention unit,
A separation preventing member disposed between the plurality of transfer belts and the plurality of rollers; And
A third motor for moving the separation preventing member up and down;
Pop-down drive type cargo sorting device comprising a. The method of claim 2,
The control unit,
Controlling the driving timing of the first driving unit and the elevation unit based on the information of the cargo and the entry speed of the cargo,
Load sorting device with pop-down drive. The method of claim 8,
The above cargo information is,
Including information of at least one of the size, weight, and image code attached to the cargo,
Load sorting device with pop-down drive. The method of claim 6,
The control unit,
To determine whether the departure prevention unit is driven based on the information of the cargo,
Load sorting device with pop-down drive. The method of claim 10,
The control unit,
When it is determined that the departure preventing unit is driven, the driving timing of the departure preventing unit is controlled according to the driving timing of the first driving unit and the lifting unit,
Controlling the operation of the departure prevention unit based on the information of the cargo,
Load sorting device with pop-down drive. The method of claim 2,
The plurality of transfer belts,
The gap between adjacent conveying belts is less than the minimum length of the cargo entering the first conveyor,
Load sorting device with pop-down drive. The method of claim 2,
The first driving unit,
A drive shaft passing through the plurality of transfer belts in a region corresponding to a point at which the cargo enters; Including,
The elevating part,
Lowering the plurality of conveying belts around the drive shaft or returning to a position before lowering,
Load sorting device with pop-down drive. The method of claim 2,
The plurality of transfer belts,
One side that comes into contact with the cargo is made of non-slip material,
Load sorting device with pop-down drive. delete delete delete delete

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