Box unpacking machine

Abstract

The utility model relates to the technical field of packaging equipment, in particular to a case unpacking machine which comprises a first conveying groove and a second conveying groove, the length of the first conveying groove and the length of the second conveying groove are both arranged in the horizontal direction, and the first conveying groove and the second conveying groove are distributed in the height direction at intervals. A storage section, a stopping section and a blanking section are sequentially arranged in the length direction of the first conveying groove, and a blanking opening is formed in the bottom surface of the blanking section; the second conveying groove is located below the discharging opening. The movable frame and the push block are movably arranged on the blanking section; the movable frame can move in the length direction of the first conveying groove and pass through the discharging section, and a suction cup assembly is arranged on the movable frame. The push block can move in the width direction of the second conveying groove and stretch into or leave the discharging section. The technical problems that in the prior art, a case unpacking machine needs to be provided with a conveying device communicated with all stations, and consequently the case unpacking machine is large in occupied space, complex in structure and high in cost can be solved.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a case opener. Background Technology

[0002] Cardboard boxes are a common type of outer packaging. To facilitate transportation and storage, the cardboard boxes are folded into flat blanks before the products are actually packed into them. Therefore, before use, a carton opener is needed to unfold the blanks back into cardboard boxes.

[0003] Depending on the type of carton blank, carton erectors often have different workstations, but generally include at least a material storage workstation, a carton opening workstation, and a carton feeding workstation. However, in the existing technology, each workstation is often laid out flat on a horizontal plane, which not only increases the overall footprint of the carton erector but also requires the installation of extra-long conveyor devices (such as conveyor belts) connecting each workstation, thus increasing the structural complexity and cost of the carton erector. Therefore, there is an urgent need to develop a new type of carton erector. Utility Model Content

[0004] The purpose of this invention is to overcome the technical problems of existing box openers, which require a conveying device to connect each workstation, resulting in a large footprint, complex structure, and high cost, and to provide a box opener.

[0005] In a first aspect, the present invention provides a box opener, comprising:

[0006] The first conveying trough and the second conveying trough are both set along the horizontal direction, and the first conveying trough and the second conveying trough are distributed at intervals along the height direction.

[0007] Along the length of the first conveying trough, there are a storage section, a stop section and a discharge section arranged in sequence. The bottom surface of the discharge section is provided with a discharge port. The width of the storage section is greater than or equal to the width of the blank, the width of the stop section is less than the width of the blank but greater than or equal to the width of the carton, and the length and width of the discharge port are both greater than the length and width of the carton.

[0008] The second conveyor trough is located below the material discharge port and is used to transport cartons.

[0009] The movable frame and push block are located in the material dropping section; the movable frame can move along the length of the first conveying trough and pass through the material dropping section, and the movable frame is equipped with a suction cup assembly; the push block can move along the width of the second conveying trough and extend into or out of the material dropping section.

[0010] When the box opener of this solution is working, the operator first places the blank in the storage section of the first conveying trough. Since the width of the blank is greater than the width of the stop section, the blank will be blocked by the stop section and cannot spontaneously enter the dropping section, so that the storage section can continuously store blanks until it is full.

[0011] Then, the movable frame can be moved closer to the storage section until the suction cup assembly on it contacts and holds the blank. At this point, the movable frame can be moved further away from the storage section to drag the blank towards the storage section. At this point, the blank is subjected to both the traction force of the suction cup assembly on its middle and the support reaction force of the stop section on its edge. Therefore, the blank will initially unfold under the combined action of the two (similar to a parallelogram in the top view), resulting in a reduction in its width (the width is less than the width of the blank but greater than or equal to the width of the carton), and thus it can pass through the stop section into the dropping section.

[0012] Once the initially unfolded blank arrives at the unloading section along with the movable frame, the pusher is activated. The pusher then unfolds the initially unfolded blank further into a rectangular carton from the side, thus completing the blank unfolding operation. At this time, since the second conveyor trough is located below the unloading section, and the bottom surface of the unloading section is equipped with a discharge port, closing the suction cup assembly at this time will cause the carton to automatically fall onto the second conveyor trough under the action of gravity and be transported to the designated location.

[0013] As can be seen from the above, this solution can realize the unfolding operation of blanks through the combined action of the movable frame and the push block. At the same time, by utilizing the height difference design of the first and second conveying channels, combined with the adsorption and release action of the suction cup assembly, the carton can be automatically transferred from the first conveying channel to the second conveying channel under gravity, thereby eliminating the need for a dedicated conveying device. This reduces the footprint, structural complexity and hardware cost of this solution, making it more suitable for promotion and use in small and medium-sized workshops.

[0014] Preferably, the number of suction cup assemblies is at least three, and the suction cup assemblies are distributed at intervals along the width and height directions of the first conveying groove.

[0015] This solution can improve the adsorption effect of the suction cup assembly on the blank by using an array of suction cup components, thus avoiding the blank falling off due to weak adsorption.

[0016] Preferably, the movable frame is provided with a first waist-shaped hole, and a suction cup frame is connected to the first waist-shaped hole; the suction cup frame is provided with a second waist-shaped hole, and a suction cup assembly is connected to the second waist-shaped hole; the length of one of the first waist-shaped hole and the second waist-shaped hole is set along the width direction of the first conveying groove, and the length of the other is set along the height direction.

[0017] This solution can adjust the vertical position of the suction cup assembly by moving it along the second waist-shaped hole, and adjust the horizontal position of the suction cup assembly by moving it along the first waist-shaped hole. Thus, when the model and size of the blank change, the adsorption position of the suction cup assembly can be adjusted accordingly to ensure the stability of adsorption and the initial unfolding effect, making this solution more versatile.

[0018] Preferably, the push block has at least two limiting grooves on the side near the center of the material dropping section. The length of the limiting grooves is set along the height direction, and the limiting grooves are distributed at intervals along the length direction of the first conveying groove.

[0019] The pusher block in this design can hold the edge of the blank through its vertically set limiting groove, thereby better pushing the blank to unfold.

[0020] Preferably, a telescopic cylinder is provided at the material dropping section, and the telescopic cylinder is positioned along the width of the first conveying trough; the push block is connected to the piston rod of the telescopic cylinder.

[0021] This solution recommends one specific pushing block activity method, which has advantages such as low cost and fast response speed, and can be applied to the rapid and continuous unfolding of carton.

[0022] Preferably, the telescopic cylinder is a double-rod cylinder.

[0023] This solution can prevent the pusher block from rotating, which would cause the limiting groove of the pusher block to not align with the edge of the blank, thus affecting the unfolding effect of the blank; and the force of the double-rod cylinder is more uniform than that of the single-rod cylinder, which is beneficial to improving the service life of the telescopic cylinder.

[0024] Preferably, a first conveyor belt is provided on the bottom surface of the storage section, and the conveying direction of the first conveyor belt is set along the length direction of the first conveying trough.

[0025] This solution can transport the blanks towards the unloading section via the first conveyor belt, thereby facilitating the adsorption of the blanks by the movable frame and suction cup assembly.

[0026] Preferably, guide plates are provided on both sides of the first conveying trough along its width direction, and / or guide plates are provided on both sides of the second conveying trough along its width direction; the distance between two adjacent guide plates gradually decreases from top to bottom along the height direction.

[0027] This solution can guide the movement of the blank into the first conveying groove and the carton into the second conveying groove, preventing the blank from falling outside the first conveying groove or the carton from falling outside the second conveying groove.

[0028] Preferably, there are at least two first conveying channels, which are spaced apart along their width direction; the length of the second conveying channel is set along the width direction of the first conveying channel.

[0029] This solution can serve at least two first conveyor channels simultaneously through a second conveyor channel, thereby improving the utilization rate of the second conveyor channel and making the structure of this solution more compact.

[0030] Preferably, the movable frame includes a crossbeam, the length of which is set along the width direction of the first conveying groove; at least two suction cup assemblies are distributed at intervals along the length direction of the crossbeam, and the number and position of the suction cup assemblies match the number and position of the first conveying groove.

[0031] This solution can drive at least two suction cup assemblies to move together via a crossbeam, thereby completing the adsorption of at least two blanks at once, thus improving the working efficiency of this solution.

[0032] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0033] This utility model provides a carton unpacking machine that can unfold blanks through a combination of movable frame and push block. At the same time, it utilizes the height difference between the first and second conveying channels, along with the suction cup assembly's adsorption and release action, to allow the carton to automatically transfer from the first conveying channel to the second conveying channel under gravity. This eliminates the need for a dedicated conveying device, reduces the footprint, structural complexity, and hardware cost of this solution, and is more conducive to its promotion and use in small and medium-sized workshops. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural diagram of a box opener according to the present invention;

[0035] Figure 2 This is a front view structural diagram of a box opener according to the present invention;

[0036] Figure 3 This is a partial sectional view of the side structure of a box opener according to this utility model;

[0037] Figure 4 This is a top view of the structure of a box opener according to this utility model;

[0038] Figure 5 This is a top view of the first conveying trough of a box-opening machine according to this utility model;

[0039] Figure 6 This is a partial three-dimensional structural diagram of a box-opening machine of this utility model at the movable frame;

[0040] Figure 7 This is a schematic diagram of the unpacking action of a box-opening machine according to this utility model. Figure 1 ;

[0041] Figure 8This is a schematic diagram of the unpacking action of a box-opening machine according to this utility model. Figure 2 ;

[0042] Figure 9 This is a schematic diagram of the unpacking action of a box-opening machine according to this utility model. Figure 3 ;

[0043] icon:

[0044] 1-Frame; 11-Discharge port;

[0045] 2-First conveying trough; 21-Storage section; 22-Stop section; 23-Discharge section;

[0046] 3-Second conveying trough;

[0047] 41-Mountain frame; 411-First oblong hole; 42-Suction cup holder; 421-Second oblong hole; 43-Suction cup assembly;

[0048] 51-Push block; 52-Telescopic cylinder;

[0049] 6-Guide plate;

[0050] 71 - First conveyor belt; 72 - Second conveyor belt;

[0051] 8-Blank piece; 9-Carton. Detailed Implementation

[0052] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0053] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0054] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0055] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0056] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0057] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0058] Example 1

[0059] like Figures 1 to 9 As shown, a case opener includes a frame 1, a first conveying trough 2, a second conveying trough 3, a movable frame 41, and a pusher block 51.

[0060] exist Figures 2 to 5 ,as well as Figures 7 to 9 The diagram also uses a Cartesian coordinate system to indicate the various directions, with arrows X and Y both horizontal, and arrow X representing the length of the first conveyor trough 2 and arrow Y representing the length of the second conveyor trough 3; arrow Z represents the height direction; Figure 2In order to showcase the suction cup assembly 43 located behind the blank 8, one side of the blank 8 was hidden; Figure 5 In order to show the width differences between the storage section 21, the stop section 22 and the discharge section 23, the first conveyor belt 71 was hidden.

[0061] The rack 1 can be in various forms, such as an open frame, cabinet or box, as long as it can be used to support the first conveyor trough 2, the second conveyor trough 3, the movable frame 41 and the push block 51.

[0062] The length of the first conveying trough 2 is set horizontally, and as follows: Figure 5 As shown, a storage section 21, a stop section 22, and a dropping section 23 are sequentially arranged along the length of the first conveying trough 2. The bottom surface of the dropping section 23 is provided with a dropping port. The width of the storage section 21 is greater than or equal to the width of the blank 8 so as to store the blank 8. The width of the stop section 22 is less than the width of the blank 8 but greater than or equal to the width of the carton 9 so as to prevent the blank 8 from spontaneously entering the dropping section 23, and at the same time, it allows the blank 8 to pass smoothly through the stop section 22 and enter the dropping section 23 after initial unfolding. The length and width of the dropping port are both greater than the length and width of the carton 9, that is, the carton 9 can fall from the dropping port to the bottom of the first conveying trough 2.

[0063] The width of the stop section 22 being less than the width of the blank 8 can be achieved in various ways, such as by setting a stop block or a stop plate on the side wall of the stop section 22.

[0064] It should be noted that the width of the storage section 21 and the width of the stop section 22 mentioned above refer to their passable width along the direction of arrow Y; the width of the carton 9 refers to its width along the direction of arrow Y; the first conveying trough 2 can be a complete "concave" trough structure including side walls and bottom surface, or it can be a hollow structure including multiple guide structures with lengths arranged in the horizontal direction, but the guide structures are distributed at intervals in the height direction and the horizontal direction, as long as it can be used to guide the blank 8 to move in the horizontal direction.

[0065] The length of the second conveying trough 3 is also set horizontally. The second conveying trough 3 and the first conveying trough 2 are distributed at intervals along the height direction, and the second conveying trough 3 is located below the discharge port. One end of the second conveying trough 3 leads to the discharge port 11 on the frame 1, which is used to catch the carton 9 falling from the discharge port and transport it to the discharge port 11. The second conveying trough 3 and the first conveying trough 2 are similar. They can be a complete "concave" trough structure including the side walls and the bottom surface, or they can be a hollow structure including multiple guide structures with a length set horizontally, but the guide structures are distributed at intervals along the height direction and the horizontal direction, as long as they can be used to guide the carton 9 to move horizontally.

[0066] The movable frame 41 is movably connected to the frame 1, and can move along the length of the first conveying trough 2 and pass through the unloading section 23. It is equipped with a suction cup assembly 43, which allows the movable frame 41 to pick up the blank 8 from the storage section 21 and move the blank 8 to the unloading section 23, thus achieving the initial unfolding of the blank 8. The movable connection mechanism between the movable frame 41 and the frame 1 includes, but is not limited to, a slide rail slider mechanism, a screw and nut mechanism, or an electric push rod mechanism, as long as it allows the movable frame 41 to move freely along the length of the first conveying trough 2.

[0067] The pusher block 51 is movably connected to the frame 1 and can move along the width direction of the second conveying groove 3 and extend into or out of the unloading section 23, thereby fully unfolding the blank 8 into a carton 9. The movable connection mechanism between the pusher block 51 and the frame 1 includes, but is not limited to, a slide rail slider mechanism, a screw nut mechanism, or an electric push rod mechanism, as long as it can realize the degree of freedom of movement of the pusher block 51 along the width direction of the first conveying groove 2.

[0068] In an optional embodiment, the number of suction cup assemblies 43 is at least three, and the suction cup assemblies 43 are distributed at intervals along the width and height directions of the first conveying groove 2. For example Figure 2 As shown and Figure 6 As shown, for each first conveying groove 2, this embodiment provides four suction cup assemblies 43. The suction cup assemblies 43 are distributed at intervals along the width and height directions of the first conveying groove 2, thereby forming a rectangular array, which can better adsorb the blank 8.

[0069] In an optional embodiment, the movable frame 41 is provided with a first waist-shaped hole 411, and a suction cup frame 42 is connected to the first waist-shaped hole 411; the suction cup frame 42 is provided with a second waist-shaped hole 421, and a suction cup assembly 43 is connected to the second waist-shaped hole 421; the length of one of the first waist-shaped hole 411 and the second waist-shaped hole 421 is set along the width direction of the first conveying groove 2, and the length of the other is set along the height direction. For example Figure 6 As shown, the movable frame 41 is provided with a first waist-shaped hole 411 whose length is along the width direction of the first conveying groove 2; the suction cup frame 42 is connected to the first waist-shaped hole 411, and the suction cup frame 42 has a second waist-shaped hole 421 whose length is along the height direction, and the suction cup assembly 43 is connected to the second waist-shaped hole 421.

[0070] In the above embodiments, such as Figure 6 As shown, at least two suction cup components 43 can be connected to each suction cup holder 42, so that the position of at least two suction cup components 43 can be adjusted synchronously by moving the suction cup holder 42, thereby improving the position adjustment efficiency of the suction cup components 43.

[0071] In an optional embodiment, the pusher block 51 has at least two limiting grooves on the side near the center of the dropping section 23. The length of the limiting grooves is set along the height direction, and the limiting grooves are spaced apart along the length direction of the first conveying groove 2. For example Figure 3 and Figure 5 As shown, multiple vertical limiting grooves are spaced apart on the push block 51 along the length direction of the first conveying groove 2.

[0072] In an optional embodiment, a telescopic cylinder 52 is provided at the material dropping section 23, and the telescopic direction of the telescopic cylinder 52 is set along the width direction of the first conveying groove 2; the push block 51 is connected to the piston rod of the telescopic cylinder 52.

[0073] In an optional implementation, the telescopic cylinder 52 is a double-rod cylinder.

[0074] In an optional embodiment, a first conveyor belt 71 is provided on the bottom surface of the storage section 21, and the conveying direction of the first conveyor belt 71 is arranged along the length direction of the first conveying trough 2. For example Figure 1 and Figure 4 As shown, the storage section 21 includes two spaced-apart side plates. A first conveyor belt 71 is provided at the bottom of each of the two side plates. This belt serves as the bottom surface of the storage section 21 to prevent the blank 8 from falling between the two side plates, and also actively transports the blank 8 towards the drop section 23.

[0075] In the above embodiment, the belt of the first conveyor belt 71 is a double-sided toothed synchronous belt, which can use the toothed protrusions on its surface to hold the blank 8, thereby increasing the traction force that the first conveyor belt 71 can generate on the blank 8, and thus improving the conveying efficiency of the first conveyor belt 71.

[0076] In alternative implementations, for example Figure 3 and Figure 4 As shown, a second conveyor belt 72 is provided on the frame 1. The length of the second conveyor belt 72 is set along the length direction of the first conveying trough 2. The movable frame 41 is connected to the second conveyor belt 72. Rotating the second conveyor belt 72 can drive the movable frame 41 to move along the length direction of the first conveying trough 2.

[0077] In optional implementations, such as Figure 2 As shown, guide plates 6 are provided on both sides of the first conveying groove 2 along its width direction. The distance between two adjacent guide plates 6 gradually decreases from top to bottom along the height direction, so that the width of the upper part of the first conveying groove 2 is greater than the width of the lower part, making it easier to put the blank 8 in.

[0078] In optional implementations, such as Figure 3As shown, guide plates 6 are provided on both sides of the second conveying trough 3 along its width direction; the distance between two adjacent guide plates 6 gradually decreases from top to bottom along the height direction, so that the width of the upper part of the second conveying trough 3 is greater than the width of the lower part, making it easier for the carton 9 to fall into the second conveying trough 3.

[0079] In alternative implementations, for example Figure 1 and Figure 4 As shown, there are at least two first conveying channels 2, which are spaced apart along their width direction; the length of the second conveying channel 3 is set along the width direction of the first conveying channel 2.

[0080] In alternative implementations, for example Figure 4 As shown, the movable frame 41 includes a crossbeam, the length of which is set along the width direction of the first conveying groove 2; at least two suction cup assemblies 43 are distributed at intervals along the length direction of the crossbeam, and the number and position of the suction cup assemblies 43 are matched with the number and position of the first conveying groove 2.

[0081] The working principle of this box opener is as follows: Figures 7 to 9 As shown, the operator first places the blank 8 into the storage section 21 of the first conveying trough 2, and then operates the movable frame 41 to move closer to the storage section 21 until the suction cup assembly 43 installed on it is in place. Figure 7 The blank 8 is contacted and held in place. Then, the movable frame 41 is moved further away from the storage section 21, thus dragging the blank 8 towards the storage section 21 and causing the blank 8 to... Figure 8 The blank 8 is initially unfolded as shown; then the pusher 51 is activated, and the pusher 51 can further unfold the blank 8 from the side into a rectangular carton 9, thus completing the unfolding operation of the blank 8; at this time, the suction cup assembly 43 is closed, and the carton 9 will automatically fall onto the second conveying groove 3 under the action of gravity and be transported to the designated position.

[0082] The above content is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An unboxing machine characterized in that, include: The first conveying trough (2) and the second conveying trough (3) are both set along the horizontal direction, and the first conveying trough (2) and the second conveying trough (3) are distributed at intervals along the height direction; Along the length of the first conveying trough (2), a storage section (21), a stop section (22), and a discharge section (23) are arranged sequentially. The bottom surface of the discharge section (23) is provided with a discharge port. The width of the storage section (21) is greater than or equal to the width of the blank (8). The width of the stop section (22) is less than the width of the blank (8) and greater than or equal to the width of the carton (9). The length and width of the discharge port are both greater than the length and width of the carton (9). The second conveying trough (3) is located below the material discharge port and is used to transport the carton (9). The movable frame (41) and push block (51) are set in the material dropping section (23); the movable frame (41) can move along the length direction of the first conveying groove (2) and pass through the material dropping section (23), and the movable frame (41) is provided with a suction cup assembly (43); the push block (51) can move along the width direction of the second conveying groove (3) and extend into or out of the material dropping section (23).

2. An unscrambler according to claim 1 wherein, The number of suction cup assemblies (43) is at least three, and the suction cup assemblies (43) are distributed at intervals along the width and height directions of the first conveying groove (2).

3. An unscrambler according to claim 2 wherein, The movable frame (41) is provided with a first waist-shaped hole (411), and a suction cup frame (42) is connected to the first waist-shaped hole (411); the suction cup frame (42) is provided with a second waist-shaped hole (421), and the suction cup assembly (43) is connected to the second waist-shaped hole (421); the length of one of the first waist-shaped hole (411) and the second waist-shaped hole (421) is set along the width direction of the first conveying groove (2), and the length of the other is set along the height direction.

4. An unscrambler according to claim 1 wherein, The pusher block (51) has at least two limiting grooves on the side near the center of the dropping section (23). The length of the limiting grooves is set along the height direction, and each limiting groove is distributed at intervals along the length direction of the first conveying groove (2).

5. An unpacker according to any one of claims 1 to 4, wherein, A telescopic cylinder (52) is provided at the material dropping section (23), and the telescopic cylinder (52) is set along the width direction of the first conveying groove (2); the push block (51) is connected to the piston rod of the telescopic cylinder (52).

6. An unscrambler according to claim 5 wherein, The telescopic cylinder (52) is a double-rod cylinder.

7. An unboxing machine according to any one of claims 1 to 4, wherein, The bottom surface of the storage section (21) is provided with a first conveyor belt (71), and the conveying direction of the first conveyor belt (71) is set along the length direction of the first conveying trough (2).

8. An unboxing machine according to any one of claims 1 to 4, wherein, The first conveying trough (2) is provided with guide plates (6) on both sides along its width direction, and / or the second conveying trough (3) is provided with guide plates (6) on both sides along its width direction; the distance between two adjacent guide plates (6) gradually decreases from top to bottom along the height direction.

9. An unboxing machine according to any one of claims 1 to 4, wherein, The number of the first conveying troughs (2) is at least two, and the first conveying troughs (2) are spaced apart along their width direction; the length of the second conveying trough (3) is set along the width direction of the first conveying troughs (2).

10. An unscrambler according to claim 9 wherein, The movable frame (41) includes a crossbeam, the length of which is set along the width direction of the first conveying groove (2); at least two suction cup assemblies (43) are distributed at intervals along the length direction of the crossbeam, and the number and position of the suction cup assemblies (43) match the number and position of the first conveying groove (2).

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