A logistics box unpacking device

Abstract

The present invention discloses a logistics box unpacking device, which specifically relates to the field of carton unpacking, including a main frame, a sub-frame installed on the main frame, an unpacking mechanism arranged on the sub-frame, a short page folding plate 1 for folding short pages on one side of the carton, a short page folding plate 2 for folding short pages on the other side of the carton, and two long page folding plates for folding long pages of the carton, and the unpacking mechanism includes a main shaft rotatably connected to the sub-frame, a rotating frame rotatably connected to the main shaft, a mobile frame is slidably arranged inside the rotating frame, the moving direction of the mobile frame is perpendicular to the axis of the rotating frame, and a vacuum suction cup for sucking the short side of the carton is fixedly installed at the bottom of the mobile frame. The vertical unpacking method of the present invention enables the box-feeding mechanism to only push the carton horizontally to the bottom of the unpacking mechanism, without having to convert the horizontally placed carton into a vertical position and then push it to the unpacking mechanism, thereby achieving the purpose of simplifying the box-feeding mechanism through the improvement of the unpacking mechanism to save costs.

Description

Technical Field

[0001] The present invention relates to the technical field of carton unpacking, and more specifically, to a logistics box unpacking device. Background Art

[0002] Carton opening refers to the opening of unformed cartons, folding the cartons according to a certain procedure, and finally sealing them with tape before conveying them to the carton packing machine. It has a fast opening speed and is an indispensable equipment for automated large-scale production. The carton opening machine is mainly composed of a carton loading mechanism, a vacuum carton suction mechanism, a carton opening mechanism, a carton short page folding mechanism, a carton long page folding mechanism, a pneumatic control system, an electrical control system, etc.

[0003] The unpacking process of the carton opener is: first feed the material through the upper box mechanism, then open the carton through the long side of the suction cup, fold the short page and the long page in turn, and finally seal it with tape. It has the characteristics of high maneuverability, high speed and high efficiency.

[0004] However, the current carton opener has a complex structure, which is mainly reflected in the following aspects: before opening the carton, the unformed carton is placed vertically on the carton opener, that is, when the carton loading mechanism conveys the carton, the flat carton must be conveyed upright to the carton opening mechanism, which makes the driving complicated. Summary of the invention

[0005] The present invention provides a logistics box unpacking device, which improves the unpacking mechanism so that when the loading mechanism conveys the carton, it is no longer necessary to convey the flat carton to the unpacking mechanism in an upright position.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A logistics box unpacking device comprises a main frame, a sub-frame mounted on the main frame, an unpacking mechanism arranged on the sub-frame, a short page folding plate 1 for folding short pages on one side of a paper box, a short page folding plate 2 for folding short pages on the other side of the paper box, and two long page folding plates for folding long pages of the paper box, the unpacking mechanism comprises a main shaft rotatably connected to the sub-frame, a rotating frame rotatably connected to the main shaft, a moving frame slidably arranged inside the rotating frame, the moving direction of the moving frame is perpendicular to the axis of the rotating frame, and a vacuum suction cup for sucking the short side of the paper box is fixedly installed at the bottom of the moving frame;

[0008] It also includes a device for driving the rotating frame to rotate and for driving the mobile frame to move. The short page folding plate 1 is fixedly installed on the rear side of the rotating frame, the short page folding plate 2 is installed in front of the unpacking mechanism, and the two long page folding plates are respectively located on both sides of the short page folding plate 2.

[0009] In a preferred embodiment, the device for driving the rotating frame to rotate and for driving the mobile frame to move includes motor 1, clutch 1, clutch 2 and a transmission assembly. Motor 1 is connected to the main shaft and drives the mobile frame to move through the main shaft and the transmission assembly. Clutch 1 is used to control the separation and connection between the main shaft and the rotating frame. Clutch 2 is used to control the separation and connection between the rotating frame and the auxiliary frame.

[0010] In a preferred embodiment, the clutch comprises a movable disk slidably connected to the main shaft through a key, a friction plate is fixedly connected to the side of the movable disk close to the rotating frame, an electric telescopic rod is fixedly connected to the rotating frame, and a push plate is fixedly connected to the output end of the electric telescopic rod, and the end of the push plate is rotatably mounted on the movable disk.

[0011] In a preferred embodiment, the second clutch includes a second electric telescopic rod fixedly mounted on the rotating frame and a second friction plate fixedly mounted on the output end of the second electric telescopic rod.

[0012] In a preferred embodiment, the transmission assembly includes a gear fixedly connected to the main shaft and a rack fixedly connected to the moving frame, and the gear is meshed with the rack.

[0013] In a preferred embodiment, it also includes two rotating drive components for driving the two long-page folding plates to rotate to fold the long pages. The rotating drive component includes a rotating column with one end rotatably connected to the sub-frame, and the other end of the rotating column is fixedly connected to the long-page folding plate. A driving groove is provided on the outer surface of the rotating column close to the sub-frame, and the driving groove includes a connected straight groove and a spiral groove, and the spiral groove is located on the side of the straight groove away from the long-page folding plate. A movable sleeve is sleeved on the rotating column, and a plug-in column is fixedly inserted on the movable sleeve, and the end of the plug-in column extends into the driving groove, and a spring is sleeved on the rotating column for resetting the movable sleeve in a direction away from the long-page folding plate, and both sides of the movable frame are fixedly connected with driving columns for pushing the movable sleeve in the direction of the long-page folding plate.

[0014] In a preferred embodiment, both sides below the movable frame are provided with limit plates fixedly connected to the main frame, and the bottom of the limit plate has a guide portion 1 bent toward a side away from the movable frame.

[0015] In a preferred embodiment, a support plate is provided on the front side of the short page folding plate 2, and a side of the support plate close to the short page folding plate 2 has a guide portion 2 bent downward.

[0016] In a preferred embodiment, conveying assemblies are provided on both sides above the support plate, and the conveying assemblies include two rotating wheels, a second motor for driving the rotating wheels to rotate, and a conveying belt sleeved on the two rotating wheels.

[0017] Technical effects and advantages of the present invention:

[0018] 1. The present invention adopts a vertical unpacking method, which not only simplifies the overall unpacking and driving structure, but also has a fast unpacking speed, high efficiency, and cheaper equipment cost.

[0019] 2. Through vertical unpacking, folding a short page during the vertical unpacking process, and then folding another short page in the process of turning the carton to flatten it, and it also has the function of discharging the carton, and folding the long page during the discharging process to finally realize the unpacking process.

[0020] 3. The vertical unpacking method allows the carton delivery mechanism to only push the carton horizontally to the bottom of the unpacking mechanism, without having to turn the horizontally placed carton into a vertical position and then push it to the unpacking mechanism. The purpose of simplifying the carton delivery mechanism is achieved through the improvement of the unpacking mechanism, thereby saving costs.

[0021] 4. The present invention provides an opening mechanism, which can make it unnecessary to set up separate drives for the short page folding plate 1 and the short page folding plate 2, and also make the two long page folding plates driven by the movable frame no longer need to set up separate drives, thus making the structure simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the embodiment;

[0023] Figure 2 A partial structural diagram of an embodiment Figure 1 ;

[0024] Figure 3 for Figure 2 The main view of

[0025] Figure 4 A partial structural diagram of an embodiment Figure 2 ;

[0026] Figure 5 It is a partial structural diagram of the unpacking mechanism;

[0027] Figure 6 is a schematic diagram of the structure of the rotary drive assembly;

[0028] Figure 7 A partial structural diagram of an embodiment Figure 3 ;

[0029] Figure 8 This is a diagram of the carton unpacking process.

[0030] The accompanying drawings are marked as follows:

[0031] 1. Main frame; 11. Auxiliary frame; 2. Unpacking mechanism; 21. Spindle; 22. Rotating frame; 23. Mobile frame; 24. Vacuum suction cup; 25. Motor 1; 26. Clutch 1; 261. Mobile plate; 262. Friction plate 1; 263. Electric telescopic rod 1; 264. Push plate; 27. Clutch 2; 271. Electric telescopic rod 2; 272. Friction plate 2; 28. Transmission assembly; 281. Gear; 282. Rack; 3. Short page folding plate 1; 4. Short page folding plate 2; 5. Long Page folding plate; 6, rotating drive assembly; 61, rotating column; 62, driving groove; 621, straight groove; 622, spiral groove; 63, moving sleeve; 64, plug column; 65, spring; 66, driving column; 7, limit plate; 71, guide part one; 8, support plate; 81, guide part two; 9, conveying assembly; 91, rotating wheel; 92, motor two; 93, conveying belt; 110, feeding trough; 100, carton; 101, long side; 102, short side; 103, long page; 104, short page. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example

[0034] Refer to the instruction manual Figure 1-Figure 8 A logistics box unpacking device comprises a main frame 1, a sub-frame 11 mounted on the main frame 1, an unpacking mechanism 2 arranged on the sub-frame 11, a short page folding plate 13 for folding short pages 104 on one side of a paper box 100, a short page folding plate 24 for folding short pages 104 on the other side of the paper box 100, and two long page folding plates 5 for folding long pages 103 of the paper box 100, the unpacking mechanism 2 comprises a main shaft 21 rotatably connected to the sub-frame 11, a rotating frame 22 is rotatably connected to the main shaft 21, a moving frame 23 is slidably arranged inside the rotating frame 22, the moving direction of the moving frame 23 is perpendicular to the axis of the rotating frame 22, and a vacuum suction cup 24 for sucking the short side 102 of the paper box 100 is fixedly installed at the bottom of the moving frame 23;

[0035] It also includes a device for driving the rotating frame 22 to rotate and for driving the movable frame 23 to move. The short page folding plate 1 3 is fixedly installed on the rear side of the rotating frame 22, the short page folding plate 2 4 is installed in front of the unpacking mechanism 2, and the two long page folding plates 5 are respectively located on both sides of the short page folding plate 2 4.

[0036] like Figure 1 and Figure 2As shown, a loading chute 110 is provided at the bottom of the unpacking mechanism 2, and a box delivery mechanism is provided in front of the loading chute 110, which is used to deliver the carton 100 horizontally to the inside of the loading chute 110. The box delivery mechanism is not shown in the figure. At this time, the short side 102 of the carton 100 is located directly below the unpacking mechanism 2, and the vacuum suction cup 24 is connected to the vacuum generator. The process is as follows:

[0037] (1) Initially, the movable frame 23 is in a vertical state, and the movable frame 23 moves downward to suck the short surface 102 through the vacuum suction cup 24 .

[0038] (2) The moving frame 23 moves upward to drive the carton 100 upward. Due to the effect of gravity, the carton 100 unfolds, and the upper short leaf 104 can be pushed downward by the short leaf folding plate 13 to fold it. At this time, Figure 8 The second state is shown.

[0039] (3) The rotating frame 22 rotates 90 degrees clockwise, such as Figure 7 As shown, the carton 100 rotates accordingly, and at this time, the short page folding plate 24 pushes another short page 104 of the carton 100, as shown in FIG. Figure 8 The third state is shown.

[0040] (4) Finally, the moving frame 23 moves forward to push out the carton 100. During the pushing process, the two long page folding plates 5 rotate toward the middle to fold the two long pages 103.

[0041] In the above description, the short page folding plate 2 4 is fixedly installed on the main frame 1, and the short page folding plate 1 3 and the short page folding plate 2 4 both fold the short pages 104, so the short page folding plate 1 3 and the short page folding plate 2 4 should be vertical thin plates. After the two long pages 103 are folded, the short page folding plate 1 3 and the short page folding plate 2 4 are located in the gap between the two long pages 103 to facilitate removal.

[0042] By opening the carton vertically, folding a short page 104 during the process of vertical opening, and then folding another short page 104 in the process of rotating 90 degrees to make the carton 100 flat, the carton 100 is discharged, and the long page 103 is folded during the discharge process to finally complete the unpacking process. The vertical unpacking method allows the carton delivery mechanism to only push the carton 100 horizontally to the bottom of the unpacking mechanism 2, without having to turn the horizontally placed carton 100 vertically and then push it to the unpacking mechanism. The purpose of simplifying the carton delivery mechanism is achieved through the improvement of the unpacking mechanism 2 to save costs.

[0043] In this embodiment, if Figure 4 and Figure 5As shown, the device for driving the rotating frame 22 to rotate and for driving the mobile frame 23 to move includes a motor 1 25, a clutch 1 26, a clutch 27 and a transmission assembly 28. The motor 1 25 is connected to the main shaft 21 and drives the mobile frame 23 to move through the main shaft 21 and the transmission assembly 28. The clutch 1 26 is used to control the separation and connection between the main shaft 21 and the rotating frame 22. The clutch 27 is used to control the separation and connection between the rotating frame 22 and the auxiliary frame 11. When clutch 1 26 controls the separation between the main shaft 21 and the rotating frame 22, and clutch 27 controls the connection between the rotating frame 22 and the auxiliary frame 11, the main shaft 21 is driven to rotate by motor 1 25, and the main shaft 21 drives the movable frame 23 to move along the rotating frame 22 through the transmission assembly 28; and when clutch 1 26 controls the connection between the main shaft 21 and the rotating frame 22, and clutch 27 controls the separation between the rotating frame 22 and the auxiliary frame 11, the motor 1 25 drives the main shaft 21 to rotate, and at this time, the main shaft 21 can drive the rotating frame 22 and the movable frame 23 to rotate together.

[0044] Furthermore, if Figure 5 As shown, the clutch 26 includes a moving disk 261 slidably connected to the main shaft 21 through a key, a friction plate 262 is fixedly connected to the side of the moving disk 261 close to the rotating frame 22, an electric telescopic rod 263 is fixedly connected to the rotating frame 22, a push plate 264 is fixedly connected to the output end of the electric telescopic rod 263, and the end of the push plate 264 is rotatably sleeved on the moving disk 261. The electric telescopic rod 263 can drive the moving disk 261 to move on the main shaft 21 through the push plate 264. When the friction plate 262 is pressed against the side wall of the rotating frame 22, the main shaft 21 and the rotating frame 22 are combined, and when not pressed, the main shaft 21 and the rotating frame 22 are separated.

[0045] Furthermore, if Figure 5 As shown, the clutch 27 includes an electric telescopic rod 271 fixedly mounted on the rotating frame 22 and a friction plate 272 fixedly mounted on the output end of the electric telescopic rod 271. When the electric telescopic rod 271 drives the friction plate 272 to press the auxiliary frame 11, the rotating frame 22 and the auxiliary frame 11 are combined, and when they are not pressed, the rotating frame 22 and the auxiliary frame 11 are separated.

[0046] Furthermore, if Figure 5 As shown, the transmission assembly 28 includes a gear 281 fixedly connected to the main shaft 21 and a rack 282 fixedly connected to the moving frame 23, and the gear 281 meshes with the rack 282. The motor 25 drives the main shaft 21 to rotate, and the main shaft 21 drives the gear 281 to rotate, thereby driving the moving frame 23 to move by driving the rack 282. Figure 5In the embodiment, two transmission assemblies 28 are provided, which are respectively located on both sides of the moving frame 23 , and two coaxial main shafts 21 are provided, which are respectively matched with two gears 281 .

[0047] In this embodiment, if Figure 3 , Figure 4 and Figure 6 As shown, it also includes two rotating drive components 6 respectively used to drive the two long-page folding plates 5 to rotate to fold the long pages 103. The rotating drive component 6 includes a rotating column 61 with one end rotatably connected to the sub-frame 11, and the other end of the rotating column 61 is fixedly connected to the long-page folding plate 5. A driving groove 62 is provided on the outer surface of the end of the rotating column 61 close to the sub-frame 11. The driving groove 62 includes a connected straight groove 621 and a spiral groove 622. The spiral groove 622 is located on the side of the straight groove 621 away from the long-page folding plate 5. A movable sleeve 63 is sleeved on the rotating column 61, and a plug column 64 is fixedly inserted on the movable sleeve 63. The end of the plug column 64 extends into the driving groove 62. A spring 65 for resetting the movable sleeve 63 in a direction away from the long-page folding plate 5 is sleeved on the rotating column 61. Specifically, the two ends of the spring 65 are pressed with the movable sleeve 63 and the sub-frame 11 respectively, and both sides of the movable frame 23 are fixedly connected with a driving column 66 for pushing the movable sleeve 63 in the direction of the long-page folding plate 5.

[0048] like Figure 7 The figure shows a state in which the rotating frame 22 rotates 90 degrees clockwise. In this state, the driving column 66 rotates to the side of the movable sleeve 63 away from the long-page folding plate 5. At the next moment, the movable frame 23 moves to the left, and the driving column 66 can drive the movable sleeve 63 to move to the left, and the plug column 64 also moves together. The plug column 64 moves from the right end of the spiral groove 622 to the straight groove 621, thereby driving the rotating column 61 to rotate. The rotating column 61 rotates 90 degrees, of course, it can also be less than 90 degrees, preferably within the range of 60-90 degrees.

[0049] In this embodiment, if Figure 2 As shown, both sides below the mobile frame 23 are provided with limit plates 7 fixedly connected to the main frame 1, and the bottom of the limit plate 7 has a guide portion 71 bent away from the mobile frame 23. When the vacuum suction cup 24 sucks the short surface 102 and the mobile frame 23 moves upward to drive the carton 100 upward, the limit plate 7 and the guide portion 71 can play a guiding role, so that the unfolded carton 100 is located between the two limit plates 7.

[0050] In this embodiment, if Figure 2As shown, a support plate 8 is provided at the front side of the short page folding plate 24, and a guide part 2 81 bent downward is provided at the side of the support plate 8 close to the short page folding plate 24. The support plate 8 is fixedly mounted on the main frame 1, and the movable frame 23 can guide the long pages 103 through the support plate 8 and the guide part 2 81 during the process of pushing out the carton 100, so that the two long pages 103 are folded and formed, and also plays a role of supporting the carton 100 during the output process.

[0051] In this embodiment, if Figure 2 As shown, conveying components 9 are arranged on both sides above the pallet 8, and the conveying components 9 include two rotating wheels 91, a second motor 92 for driving the rotating wheels 91 to rotate, and a conveying belt 93 sleeved on the two rotating wheels 91. The second motor 92 drives the rotating wheels 91 to rotate, and when the carton 100 moves between the two conveying components 9, it can be conveyed forward by the two conveying belts 93.

[0052] In this embodiment, the implementation scenario is specifically as follows:

[0053] (1) Initially, the mobile frame 23 is in a vertical state, and the unformed carton 100 is conveyed to the feeding chute 110. Figure 8 As shown in the first state, clutch 1 26 separates the main shaft 21 from the rotating frame 22, and clutch 27 combines the rotating frame 22 with the sub-frame 11. At this time, the motor 1 25 can drive the main shaft 21 to rotate, and the main shaft 21 drives the movable frame 23 to move downward through the gear 281 and the rack 282, so that the vacuum suction cup 24 can absorb the short surface 102.

[0054] (2) The motor 25 is reversed, so that the moving frame 23 moves upward and drives the carton 100 upward. Due to the effect of gravity, the carton 100 is unfolded, and the long surface 101 is guided by the limit plate 7 to enter between the two limit plates 7. The short page 104 on the upper side can be pushed downward by the short page folding plate 3 to fold it. At this time, Figure 8 The second state is shown.

[0055] (3) Clutch 1 26 combines the main shaft 21 and the rotating frame 22, and clutch 27 separates the rotating frame 22 from the auxiliary frame 11. At this time, the rotation of motor 1 25 can drive the main shaft 21, the rotating frame 22 and the mobile frame 23 to rotate together, so that the rotating frame 22 and the mobile frame 23 rotate 90 degrees clockwise together. At this time, the short page folding plate 2 4 will push the short page 104 located at the front side to fold. The folding does not have to be completely folded, because when the long page 103 is folded later, it can be pressed toward the middle. At this time, the unpacking mechanism 2 is as follows. Figure 7 As shown in the state, the carton 100 is as Figure 8 The third state is shown.

[0056] (4) After the rotating frame 22 and the mobile frame 23 rotate 90 degrees, the driving column 66 is located on one side of the moving sleeve 63, the clutch 1 26 separates the main shaft 21 from the rotating frame 22, the clutch 27 combines the rotating frame 22 with the auxiliary frame 11, and the motor 1 25 rotates to drive the mobile frame 23 to move forward to push out the carton 100. During the pushing out process, the mobile frame 23 pushes the moving sleeve 63 to move through the driving column 66, so that the rotating column 61 can rotate, and the rotating column 61 drives the long page folding plate 5 to rotate and fold the long page 103. Through the guidance of the support plate 8 and the guide part 2 81, the carton 100 is finally unpacked. Figure 8 The fourth state is shown.

[0057] (5) Finally, the unpacking mechanism 2 returns to the state of (1).

[0058] It should be noted that the conveying assembly 9 is optional and can be used or not, and does not affect the unpacking process. After unpacking, adhesive tape needs to be applied, which can be done by the existing technology, which is not described here. Through the above-mentioned unpacking mechanism 2, on the one hand, the short page folding plate 1 3 and the short page folding plate 2 4 do not need to be provided with a separate drive, and on the other hand, the two long page folding plates 5 are driven by the moving frame 23 and do not need to be provided with a separate drive, so that the structure is simpler.

[0059] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A logistics box unpacking device, comprising a main frame (1), a sub-frame (11) mounted on the main frame (1), an unpacking mechanism (2) arranged on the sub-frame (11), a short page folding plate (3) for folding short pages (104) on one side of a paper box (100), a short page folding plate (4) for folding short pages (104) on the other side of the paper box (100), and two long page folding plates (5) for folding long pages (103) of the paper box (100), characterized in that: The box opening mechanism (2) comprises a main shaft (21) rotatably connected to the auxiliary frame (11); a rotating frame (22) is rotatably connected to the main shaft (21); a moving frame (23) is slidably arranged inside the rotating frame (22); the moving direction of the moving frame (23) is perpendicular to the axis of the rotating frame (22); a vacuum suction cup (24) for sucking the short side (102) of the carton (100) is fixedly installed at the bottom of the moving frame (23); It also includes a device for driving the rotating frame (22) to rotate and for driving the moving frame (23) to move, wherein the short page folding plate 1 (3) is fixedly mounted on the rear side of the rotating frame (22), the short page folding plate 2 (4) is mounted in front of the box opening mechanism (2), and the two long page folding plates (5) are respectively located on both sides of the short page folding plate 2 (4); The device for driving the rotating frame (22) to rotate and for driving the moving frame (23) to move comprises a motor 1 (25), a clutch 1 (26), a clutch 2 (27) and a transmission assembly (28), wherein the motor 1 (25) is connected to the main shaft (21) and drives the moving frame (23) to move via the main shaft (21) and the transmission assembly (28), the clutch 1 (26) is used to control the separation and connection between the main shaft (21) and the rotating frame (22), and the clutch 2 (27) is used to control the separation and connection between the rotating frame (22) and the auxiliary frame (11); The clutch 1 (26) comprises a movable disk (261) slidably connected to the main shaft (21) via a key, a friction plate 1 (262) being fixedly connected to a side of the movable disk (261) close to the rotating frame (22), an electric telescopic rod 1 (263) being fixedly connected to the rotating frame (22), an output end of the electric telescopic rod 1 (263) being fixedly connected to a push plate (264), and an end of the push plate (264) being rotatably sleeved on the movable disk (261); The second clutch (27) comprises a second electric telescopic rod (271) fixedly mounted on the rotating frame (22) and a second friction plate (272) fixedly mounted on the output end of the second electric telescopic rod (271); The transmission assembly (28) comprises a gear (281) fixedly connected to the main shaft (21) and a rack (282) fixedly connected to the moving frame (23), wherein the gear (281) meshes with the rack (282); The machine also comprises two rotation drive assemblies (6) respectively used for driving the two long page folding plates (5) to rotate so as to fold the long pages (103). The rotation drive assembly (6) comprises a rotation column (61) having one end rotationally connected to the auxiliary frame (11), the other end of the rotation column (61) being fixedly connected to the long page folding plate (5), and a driving groove (62) being formed on the outer surface of one end of the rotation column (61) close to the auxiliary frame (11). The driving groove (62) comprises a straight groove (621) and a spiral groove (622) which are connected to each other. The spiral groove (622) is located at a position On the side of the straight groove (621) away from the long-page folding plate (5), a movable sleeve (63) is sleeved on the rotating column (61), and an insertion column (64) is fixedly inserted on the movable sleeve (63). The end of the insertion column (64) extends into the driving groove (62), and a spring (65) is sleeved on the rotating column (61) for returning the movable sleeve (63) in a direction away from the long-page folding plate (5). Both sides of the movable frame (23) are fixedly connected with a driving column (66) for pushing the movable sleeve (63) in the direction of the long-page folding plate (5).

2. A logistics box opening device according to claim 1, characterized in that: Limiting plates (7) fixedly connected to the main frame (1) are provided on both sides below the movable frame (23), and the bottom of the limiting plate (7) has a guiding portion (71) bent toward a side away from the movable frame (23).

3. A logistics box opening device according to claim 1, characterized in that: A support plate (8) is arranged on the front side of the second short page folding plate (4), and a side of the support plate (8) close to the second short page folding plate (4) has a second guide portion (81) bent downward.

4. A logistics box opening device according to claim 3, characterized in that: Conveying assemblies (9) are arranged on both sides above the support plate (8), and the conveying assembly (9) comprises two rotating wheels (91), a second motor (92) for driving the rotating wheels (91) to rotate, and a conveying belt (93) sleeved on the two rotating wheels (91).

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