Input device
The input device improves conveyor loading by using overlapping and height-adjustable mobile platforms with transfer devices to enhance transfer efficiency and handle conveyor synchronization.
Patent Information
- Application Number
- JP2021102985
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-06-22
- Publication Date
- 2025-02-04
- Estimated Expiration
- 2041-06-22
AI Technical Summary
Conventional input devices have limitations in enhancing the ability to introduce goods into a conveyor system.
The input device employs two mobile platforms with transfer devices that can overlap and adjust their height, allowing them to pass each other, and includes elevation mechanisms to manage the movement and positioning of goods relative to the conveyor.
This configuration enhances the introduction capacity by enabling efficient transfer of goods onto the conveyor, including a buffer function to handle congestion or synchronization with the conveyor's operation.
Smart Images

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Abstract
Description
[Technical field]
[0001] The present invention relates to an input device for inputting articles onto a conveyor. [Background technology]
[0002] In recent years, large logistics centers have been installing sorting devices that feed items onto a conveyor and sort them into chutes. An input device that inputs an object onto a conveyor includes a platform and a moving device. When an object is placed on the platform, the moving device moves the platform toward the conveyor. Then, by stopping the platform, the object is ejected from the platform toward the conveyor's transport surface (see, for example, Patent Document 1). [Prior art documents] [Patent documents]
[0003] [Patent Document 1] JP 2019-6579 A Summary of the Invention [Problem to be solved by the invention]
[0004] Conventional feeding devices have limitations in terms of increasing feeding capacity.
[0005] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to increase the feeding capacity of a feeding device that feeds articles onto a conveyor. [Means for solving the problem]
[0006] In the following, several aspects will be described as means for solving the problems. These aspects can be arbitrarily combined as necessary.
[0007] An input device according to one aspect of the present invention is a device for inputting articles onto a conveyor, and includes a first platform, a first moving device, a second platform, and a second moving device. An article is placed on the first table at a placement location. The first moving device moves the first placement table toward the conveyor and then stops the first placement table, thereby throwing the articles placed on the first placement table from the first placement table toward the transport surface of the conveyor. An article is placed on the second table at a placement location. The second moving device moves the second platform toward the conveyor and then stops it, thereby throwing the articles placed on the second platform toward the transport surface of the conveyor. The first and second moving devices are disposed adjacent to each other in a direction perpendicular to the movement direction of the first and second mounting tables, and the movement paths of the first and second mounting tables overlap in a plan view. The input device further includes a first lifting mechanism capable of raising and lowering the first moving device. The first lifting mechanism changes the height of the first moving device, allowing the first and second mounting tables to pass each other in the movement direction. In this loading device, two loading platforms and two moving devices are installed, and the loading capacity can be increased by allowing the two loading platforms to pass each other in the moving direction. Note that "passing each other" includes cases where both loading platforms pass each other in opposite directions, or where one platform is stopped and the other moves to a position where they overlap and then moves away again.
[0008] The input device may further include a second lifting mechanism capable of raising and lowering the second moving device. In this loading device, by providing each moving device with a lifting mechanism, the loading capacity can be further improved. For example, by changing the height of one of the platforms on which no baggage is placed, it is possible for that platform to pass another platform on which baggage is placed.
[0009] When an item is placed on the first or second platform at the placement location, the first or second moving device may be capable of moving the first or second platform toward the conveyor and stopping it at a waiting position just before the loading position. With this loading device, when an item cannot be loaded onto the conveyor immediately, one of the loading tables can wait at a waiting area. In other words, the loading device functions as a buffer for the items. Furthermore, the other loading table can be made to move and load an item. Effect of the Invention
[0010] The dosing device according to the present invention can increase dosing capacity. [Brief description of the drawings]
[0011] [Figure 1] FIG. 1 is a schematic plan view of a sorting system according to a first embodiment. [Diagram 2] FIG. [Diagram 3] FIG. 2 is a functional block diagram showing a control configuration of the sorting system. [Figure 4] FIG. [Diagram 5] FIG. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] FIG. [Figure 9] FIG. [Figure 10] FIG. [Figure 11] FIG. [Figure 12] FIG. [Figure 13] FIG. [Figure 14] 13A to 13C are schematic diagrams showing the operation of the inserting device in the second embodiment. [Figure 15] 13A to 13C are schematic diagrams showing the operation of the inserting device in the second embodiment. [Figure 16] 13A to 13C are schematic diagrams showing the operation of the inserting device in the second embodiment. [Figure 17] 13A to 13C are schematic diagrams showing the operation of the inserting device in the second embodiment. [Figure 18] 13A to 13C are schematic diagrams showing the operation of the inserting device in the second embodiment. [Figure 19] 13A to 13C are schematic diagrams showing the operation of the inserting device in the second embodiment. [Figure 20] 13A to 13C are schematic diagrams showing the operation of the inserting device in the second embodiment. [Figure 21] 13A to 13C are schematic diagrams showing the operation of the inserting device in the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0012] 1. First embodiment (1) Overall configuration of the sorting system The overall configuration of a sorting system 1 will be described with reference to Fig. 1. Fig. 1 is a schematic plan view of the sorting system of the first embodiment. The sorting system 1 is a device that automatically sorts supplied objects into chutes. The sorting system 1 has a cross belt sorter 3 (an example of a conveyor) that transports a plurality of objects W, and an input device 5 that inputs the objects W into the cross belt sorter 3.
[0013] The cross belt sorter 3 has a function of sending out the articles W to the side along the conveying path. Specifically, the cross belt sorter 3 has a plurality of belts 7 that can convey the articles W in a conveying direction (arrow X) while moving the articles W in a direction perpendicular to the conveying direction (arrow Y). A plurality of chutes (not shown) are arranged on the sides of the cross belt sorter 3 to receive the articles W from the cross belt sorter 3. The cross belt sorter 3 sends out the articles W indicated by a control signal transmitted from, for example, a controller 51 (described later) to the chute indicated by the control signal.
[0014] The feeding device 5 is a device that feeds articles W onto the conveying surface 3a of the cross belt sorter 3 (the upper surface of the multiple belts 7). The input device 5 has a first input device 5A and a second input device 5B.
[0015] The first input device 5A has a first mounting table 11A on which the articles W are placed, and a first moving device 13A that moves the first mounting table 11A. The first input device 5A moves the first mounting table 11A toward the cross belt sorter 3 using the first moving device 13A and stops it, causing the articles W on the first mounting table 11A to jump out toward the conveying surface 3a of the cross belt sorter 3. As a result, the articles W on the first mounting table 11A are input onto the conveying surface 3a of the cross belt sorter 3.
[0016] The second input device 5B has a second mounting table 11B on which the articles W are placed, and a second moving device 13B that moves the second mounting table 11B. The second input device 5B moves the second mounting table 11B toward the cross belt sorter 3 using the second moving device 13B and stops it, causing the articles W on the second mounting table 11B to jump out toward the conveying surface 3a of the cross belt sorter 3. As a result, the articles W on the second mounting table 11B are input onto the conveying surface 3a of the cross belt sorter 3. The sorting system 1 further includes an input conveyor 9. The input conveyor 9 inputs the article W onto the first placement table 11A or the second placement table 11B. The input conveyor 9 is a belt conveyor, but may be another type of conveyor. A robot may be used as the input device.
[0017] (2) Detailed configuration of the insertion device The configurations of the first inserting device 5A and the second inserting device 5B will be described in detail with reference to Fig. 2. Fig. 2 is a schematic perspective view of the inserting device.
[0018] (2-1) First loading device The first input device 5A has a first placement table 11A and a first moving device 13A. The first placement table 11A has a first main body portion 21A forming a first placement surface 21Aa on which the article W is placed, and a first protrusion portion 23A protruding upward from the first main body portion 21A. The first protrusion portion 23A is a wall provided on the rear side in the movement direction and on the side close to the input conveyor 9 so that the article W placed on the first placement surface 21Aa does not fall off to any side other than the input side. The first moving device 13A includes a first base portion 25A, a first rail member 27A, and a first driving portion 29A. The first base portion 25A is connected to the first mounting table 11A. The first base portion 25A is supported on the first rail member 27A and is movable along the first rail member 27A. The first driving portion 29A drives and moves the first base portion 25A on the first rail member 27A.
[0019] The first moving device 13A has a structure for moving the first base portion 25A by a ball screw. More specifically, a first screw shaft (not shown) that screws into and penetrates the first base portion 25A is disposed inside the first rail member 27A, and the first driving unit 29A drives the movement of the first base portion 25A by rotating the first screw shaft.
[0020] The first loading device 5A is disposed in such a position that the movement direction of the first loading table 11A is oblique to the conveying direction of the articles W by the cross belt sorter 3 in a plan view. Specifically, the angle (lead angle) θ between the axis P parallel to the movement direction of the first loading table 11A and the conveying direction of the cross belt sorter 3 is, for example, 30°. Note that the lead angle θ is not limited to 30°, and a value greater than 0° and equal to or less than 90° can be adopted as the lead angle θ.
[0021] The first input device 5A further includes a first lifting mechanism 31A capable of raising and lowering the first moving device 13A. The first lifting mechanism 31A is a known mechanism such as an air cylinder or a ball screw mechanism. The first lifting mechanism 31A can lift and lower the first placement table 11A together with the first moving device 13A.
[0022] (2-2)Second loading device The second loading device 5B has a second placement table 11B and a second moving device 13B. The second placement table 11B has a second main body portion 21B forming a second placement surface 21Ba on which the article W is placed, and a second protrusion portion 23B protruding upward from the second main body portion 21B. The second protrusion portion 23B is a wall provided on the rear side in the movement direction and on the side closer to the loading conveyor 9 so that the article W placed on the second placement surface 21Ba does not fall off in any direction other than the loading direction. The second moving device 13B includes a second base portion 25B, a second rail member 27B, and a second driving portion 29B. The second base portion 25B is connected to the second mounting table 11B. The second base portion 25B is supported on the second rail member 27B and is movable along the second rail member 27B. The second driving portion 29B drives and moves the second base portion 25B on the second rail member 27B. The second moving device 13B is disposed adjacent to the first moving device 13A. The second rail member 27B is parallel to the first rail member 27A. The second base portion 25B extends toward the first moving device 13A side, so that the movement path of the first mounting table 11A and the movement path of the second mounting table 11B are disposed to overlap in a plan view.
[0023] The second loading device 5B is disposed in such a position that the movement direction of the second placement table 11B is oblique to the conveying direction of the articles W by the crossbelt sorter 3 in a plan view. In other words, the first placement table 11A and the second placement table 11B move parallel to each other. The second moving device 13B has a structure that moves the second base portion 25B by a ball screw. More specifically, a second screw shaft (not shown) that screws into and penetrates the second base portion 25B is disposed inside the second rail member 27B, and the second driving unit 29B drives the movement of the second base portion 25B by rotating the second screw shaft.
[0024] The second input device 5B further includes a second lifting mechanism 31B capable of raising and lowering the second moving device 13B. The second lifting mechanism 31B is a known mechanism such as an air cylinder or a ball screw mechanism. The second placement table 11B can be raised and lowered together with the second moving device 13B by the second moving device 13B. The first and second mount tables 11A and 11B can pass each other by adjusting the height position of one or both of them when moving on the movement path. That is, it is possible for the first mount table 11A to be above and the second mount table 11B to be below and pass each other, or for the second mount table 11B to be above and the first mount table 11A to be below and pass each other.
[0025] (3) Sorting system control configuration The control configuration of the sorting system 1 will be described with reference to Fig. 3. Fig. 3 is a functional block diagram showing the control configuration of the sorting system. The sorting system 1 has a controller 51. The controller 51 is a computer system having a processor (e.g., a CPU), a storage device (e.g., a ROM, a RAM, a HDD, an SSD, etc.), and various interfaces (e.g., an A / D converter, a D / A converter, a communication interface, etc.). The controller 51 performs various control operations by executing a program stored in a storage unit (corresponding to a part or all of the storage area of the storage device).
[0026] The controller 51 may be configured with a single processor, or may be configured with multiple independent processors for each control. A part or all of the functions of each element of the controller 51 may be realized as a program executable by a computer system constituting a control unit. In addition, a part of the functions of each element of the controller 51 may be configured by a custom IC. Although not shown, sensors for detecting the size, shape and position of an object, sensors and switches for detecting the state of each device, and an information input device are connected to the controller 51 . The controller 51 is connected to the crossbelt sorter 3 and the input device 5 and can control their operations.
[0027] (4) Operation of the insertion device (4-1) Insertion operation of the first inserting device alone Here, the inserting operation of the first inserting device 5A alone will be briefly described. Note that in this description, the operation of the second inserting device 5B is omitted. Also, the inserting operation of the second inserting device 5B alone is the same as the inserting operation of the first inserting device 5A alone.
[0028] First, the article W is loaded onto the first loading platform 11A at a loading position (described later), and the first loading platform 11A starts moving toward the cross belt sorter 3. For example, the controller 51 determines the belt 7 on which the article W should be loaded, and when it detects that the belt 7 has reached a predetermined range based on the first loading device 5A, it starts moving the first loading platform 11A. In other words, the controller 51 controls the cross belt sorter 3 and the first loading device 5A so that the operation of the cross belt sorter 3 and the first loading device 5A are synchronized.
[0029] After the first mounting table 11A starts moving, the first mounting table 11A suddenly stops at a position before reaching the cross belt sorter 3. As a result, the article W placed on the first mounting table 11A jumps out of the first mounting table 11A and lands on the conveying surface 3a of the cross belt sorter 3. Specifically, the article W on the first mounting surface 21Aa moves in the direction of the conveying surface 3a of the cross belt sorter 3 while sliding on the first mounting surface 21Aa due to inertial force, and moves away from the first mounting surface 21Aa. The reference height position (described later) of the first loading surface 21Aa of the first loading table 11A is higher than the conveying surface 3a by a predetermined distance (e.g., several mm) in the vertical direction. Therefore, the article W that has been separated from the first loading surface 21Aa by inertial force crosses the gap between the first input device 5A and the cross belt sorter 3 and lands on the conveying surface 3a of the cross belt sorter 3. Thereafter, the first loading table 11A moves in a direction away from the cross belt sorter 3 and is returned to the loading position (described later), and performs, for example, an input operation of the next article W into the cross belt sorter 3.
[0030] (4-2) Continuous insertion operation of the first insertion device and the second insertion device Here, the continuous inserting operation of the first inserting device 5A and the second inserting device 5B will be described with reference to Figures 2 and 4 to 13. Figures 2 and 4 to 13 are schematic perspective views of the inserting devices.
[0031] The first and second mounting tables 11A and 11B are movable in the movement direction between a mounting position, an input position, and a waiting position. The mounting position is the position farthest from the cross belt sorter 3, and is the position where the item W is mounted. The input position is the position closest to the cross belt sorter 3, and is the position where the table stops to input the item W into the cross belt sorter 3. The waiting position is any position between the mounting position and the input position. The first and second mounting tables 11A and 11B can be raised and lowered in the vertical direction between a reference height position and a lower position by the first and second lifting mechanisms 31A and 31B, respectively. The reference height position is a height through which the first and second mounting tables 11A and 11B pass when moving from the mounting position to the loading position. The lower position is a height through which the first and second mounting tables 11A and 11B pass when moving from the loading position to the mounting position.
[0032] 2, first, the first mounting table 11A is in the mounting position and at the reference height position, and receives the article W. At this time, the second mounting table 11B is in the mounting position and at the lower position. In FIG. 4, the first table 11A starts to move toward the crossbelt sorter 3 side.
[0033] 5, the second mounting table 11B rises and moves to the mounting position and the reference height position. At this time, the first mounting table 11A waits at the waiting position on the movement path. 6, the first platform 11A inputs the article W into the crossbelt sorter 3. Meanwhile, the second platform 11B receives the article W from the input conveyor 9.
[0034] In FIG. 7, the second platform 11B starts to move toward the crossbelt sorter 3, and then stops at the standby position and waits. 8, the first mounting table 11A moves down. This is an operation to avoid the second mounting table 11B coming next.
[0035] In Fig. 9, the second platform 11B puts the article W into the crossbelt sorter 3. At this time, the first platform 11A and the second platform 11B overlap on the movement path. 10, the first mounting table 11A is at the mounting position and returns to the lower position. As described above, the first mounting table 11A and the second mounting table 11B pass each other in the movement direction at the loading position. The loading operation of the second platform 11B and the operation of the first platform 11A returning to the lower position at the loading position may be performed in the reverse order. That is, the second platform 11B may load the articles W into the crossbelt sorter 3 after the first platform 11A returns to the lower position at the loading position.
[0036] In FIG. 11, the first mounting table 11A rises and reaches the mounting position and the reference height position. 12, the second platform 11B moves down to a lower position. This is an operation to avoid the first platform 11A that is coming next. Also, the first platform 11A receives the article W from the input conveyor 9. In FIG. 13, the second mounting table 11B is in the mounting position and returns to the lower position.
[0037] As described above, in the feeding device 5, the first lifting mechanism 31A and the second lifting mechanism 31B change the heights of the first moving device 13A and the second moving device 13B, so that the first platform 11A and the second platform 11B can pass each other in the moving direction. In other words, the feeding capacity can be increased by using two feeding devices. Specifically, a platform on which no baggage is placed is moved to a lower position at the feeding position and then returned to the placement position, so that the platform on which no baggage is placed can pass a platform carrying articles W and moving toward the cross belt sorter 3 at the reference position.
[0038] The first mounting table 11A or the second mounting table 11B can move from the mounting position to the standby position with the article W placed thereon and wait there. This operation is necessary, for example, when the cross belt sorter 3 is jammed or when the other mounting table is at the reference height position on the cross belt sorter 3 side. Note that while either the first mounting table 11A or the second mounting table 11B is in the standby position, the other can be returned to the mounting position so that the next article W can be placed on it.
[0039] In the above embodiment, the first and second mounting tables 11A and 11B wait in the standby position until the previous mounting table loads the articles W into the crossbelt sorter 3 and then descends. However, as a modified example, the previous mounting table may complete its loading operation before the subsequent mounting table completes loading of the articles at the mounting position, so that the subsequent mounting table does not wait in the standby position. In the above embodiment, the first and second mounting tables 11A and 11B pass each other at the input position or the mounting position. However, as a modified example, the first and second mounting tables 11A and 11B may pass each other at the standby position.
[0040] 2. Second embodiment In the first embodiment described above, both the first moving device and the second moving device are provided with a lifting mechanism, but the lifting mechanism may be provided on only one of the lifting devices. Such an example will be described as the second embodiment with reference to Fig. 14 to Fig. 21. Fig. 14 to Fig. 21 are schematic diagrams showing the operation of the input device in the second embodiment. The basic configuration and basic operation of the input device in the second embodiment are the same as those in the first embodiment.
[0041] In the second embodiment, the second loading device 5B does not have a lifting mechanism. Therefore, the second loading platform 11B moves only at the reference height. On the other hand, the first loading device 5A has a lifting mechanism (corresponding to the first lifting mechanism 31A in the first embodiment), and the first loading platform 11A can move up and down between the reference height, the upper position, and the lower position. The reference height position is the height through which the first loading platform 11A passes when moving from the loading position to the loading position. The lower position is the height through which the first loading platform 11A passes when moving from the loading position to the loading position. The upper position is a position for the first loading platform 11A with the article W placed thereon to avoid collision with the second loading platform 11B, for example, at a standby position.
[0042] 14, the second mounting table 11B is in the mounting position at the reference height and receives the article W. The first mounting table 11A is in the mounting position at a lower position and overlaps with the second mounting table 11B in a plan view. 15, the second platform 11B on which the article W is placed moves toward the crossbelt sorter 3. In addition, the first platform 11A rises and reaches the placement position and the reference placement height, and further receives the article W.
[0043] 16, the second platform 11B puts the article W into the crossbelt sorter 3. At this time, the first platform 11A moves to the standby position and stops there. In Fig. 17, the second mounting table 11B returns to the mounting position side. At this time, the first mounting table 11A rises to an upper position at the standby position to avoid a collision with the second mounting table 11B. In other words, the second mounting table 11B and the first mounting table 11A pass each other at the standby position. In a modified example, the first mounting table 11A may perform a lifting / lowering operation and a moving operation at the same time.
[0044] In FIG. 18, the first mounting table 11A descends and returns to the reference height position. 19, the first platform 11A puts the article W into the crossbelt sorter 3, and then descends to the lower position. The second platform 11B returns to the platform position and receives the article W.
[0045] In Fig. 20, the first mounting table 11A returns to the mounting position side, so that the two pass each other. At this time, the second mounting table 11B is stopped at the standby position. In a modified example, the second mounting table 11B may be moving. 21, the second platform 11B puts the article W into the crossbelt sorter 3. In addition, the first platform 11A rises to the reference height position at the platform position and then receives the article W.
[0046] 3. Common features of the embodiments The first and second embodiments have the following features in common. The input device (for example, input device 5) is a device for inputting articles onto the conveyor, and includes a first platform, a first moving device, a second platform, and a second moving device. An article is placed on a first placement table (for example, first placement table 11A) at a placement location. A first moving device (e.g., first moving device 13A) moves the first loading platform toward the conveyor and then stops it, thereby loading the items placed on the first loading platform from the first loading platform onto the conveying surface of the conveyor (e.g., cross belt sorter 3). An article is placed on a second placement table (for example, second placement table 11B) at a placement location. A second moving device (for example, second moving device 13B) moves the second placement table toward the conveyor and then stops the second placement table, thereby throwing the articles placed on the second placement table toward the transport surface of the conveyor. The first and second moving devices are disposed adjacent to each other in a direction perpendicular to the movement direction of the first and second mounting tables, and the movement paths of the first and second mounting tables overlap in a plan view. The input device further includes a first lifting mechanism capable of raising and lowering the first moving device. The first lifting mechanism (for example, the first lifting mechanism 31A or the second lifting mechanism 31B in the first embodiment, the first lifting mechanism 31A in the second embodiment) changes the height of the first moving device, allowing the first and second mounting tables to pass each other in the movement direction.
[0047] In this loading device, two loading tables and two moving devices are installed, and further, the two loading tables are allowed to pass each other in the moving direction, thereby increasing the loading capacity.
[0048] 4. Other embodiments Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible without departing from the spirit of the invention. In particular, the multiple embodiments and modifications described in this specification can be arbitrarily combined as necessary. Instead of a cross belt sorter, other conveyors may be used, such as a tilt tray sorter, or a belt or roller conveyor that does not have the ability to send articles to the side along the transport path. The mechanism for moving the transfer table is not limited to a ball screw, and may be driven by a timing belt, a rack and pinion, an air cylinder, or the like. [Industrial Applicability]
[0049] The present invention is widely applicable to feeding devices that feed articles onto a conveyor. [Explanation of symbols]
[0050] 1: Sorting system 3: Cross belt sorter 3a: Transport surface 5: Feeding device 5A: 1st loading device 5B:Second loading device 7: Belt 9: Input conveyor 11A: First mounting table 11B: Second mounting table 13A: 1st moving device 13B:Second moving device 21A: 1st main body part 21Aa: First placement surface 21B: 2nd main body part 21Ba: Second loading surface 23A: 1st protrusion 23B: Second protrusion 25A: First base part 25B: Second base part 27A: First rail member 27B: Second rail member 29A: First drive unit 29B: Second drive unit 31A: First lifting mechanism 31B: Second lifting mechanism 51: Controller W:Goods
Claims
1. 1. A device for feeding articles onto a conveyor, comprising: a first placement table on which an article is placed at a placement location; a first moving device that moves the first platform toward the conveyor and then stops the first platform to throw the items placed on the first platform toward a conveying surface of the conveyor; a second placement table on which an article is placed at the placement location; a second moving device that moves the second platform toward the conveyor and then stops the platform to throw the articles placed on the second platform toward a conveying surface of the conveyor; Equipped with the first moving device and the second moving device are disposed adjacent to each other in a direction perpendicular to a moving direction of the first mounting table and the second mounting table, and the moving paths of the first mounting table and the second mounting table overlap each other in a plan view; A first lifting mechanism capable of lifting the first moving device is further provided, The first lifting mechanism changes the height of the first moving device, so that the first mounting table and the second mounting table can pass each other in a moving direction. Insertion device.
2. The input device according to claim 1 , further comprising a second lifting mechanism capable of raising and lowering the second moving device.
3. The input device according to claim 1 or 2, wherein when an item is placed on the first loading platform or the second loading platform at a loading location, the first moving device or the second moving device can move the first loading platform or the second loading platform toward the conveyor and stop it at a standby position.
Citation Information
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