Box opening device

Abstract

The utility model provides a box opening device which comprises a machine frame, the machine frame sequentially comprises a first station, a second station, a third station and a fourth station in the conveying direction, and the first station is provided with a paper box bin and comprises a first linear module, a second linear module, an unfolding mechanism and a box sealing mechanism. The first linear module and the second linear module are sequentially arranged on the rack in the conveying direction, the unfolding mechanism is arranged above the second station, the carton sealing mechanism is arranged on one side of the rack, the first linear module is used for taking out cartons in the carton bin one by one and conveying the cartons to the second station, and the unfolding mechanism is used for unfolding the cartons into three-dimensional cartons. The second linear module is used for conveying the three-dimensional paper box to the third station and conveying the three-dimensional paper box on the third station to the fourth station, and the box sealing mechanism is used for folding and sealing the bottom of the three-dimensional paper box. The device is reasonable in structure, box opening and box bottom sealing operation can be automatically completed in the whole process, the labor cost is greatly reduced, and the packaging efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of product packaging technology, and in particular to a box-opening device. Background Art

[0002] To facilitate product transportation and sales, packaging is essential, with cardboard boxes accounting for a significant portion. In large-scale modern production, due to space and transportation constraints, cardboard boxes are typically folded upon leaving the factory. The primary challenge for manufacturers using cardboard packaging is unfolding these folded boxes. While some organizations can unfold and shape cardboard boxes, this process requires significant manual intervention, involves complex manufacturing processes, results in high costs, high failure rates, and low production efficiency, failing to meet the demands of current product packaging speeds. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a fully automated box-opening device with a reasonable structure and high box-opening efficiency.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a box-opening device, including a frame, the frame including a first station, a second station, a third station and a fourth station in sequence along the conveying direction, the first station being provided with a cardboard box compartment, the device including a first linear module, a second linear module, an unfolding mechanism and a sealing mechanism, the first linear module and the second linear module being arranged sequentially on the frame along the conveying direction, the unfolding mechanism being arranged above the second station, and the sealing mechanism being arranged on one side of the frame, the first linear module being used to take out the cardboard boxes one by one from the cardboard box compartment and convey them to the second station, the unfolding mechanism being used to unfold the cardboard boxes into three-dimensional cardboard boxes, the second linear module being used to convey the three-dimensional cardboard boxes to the third station and to convey the three-dimensional cardboard boxes from the third station to the fourth station, and the sealing mechanism being used to fold and seal the bottom of the three-dimensional cardboard boxes.

[0005] Furthermore, the first linear module includes a first guide rail and a first slider. The first slider can reciprocate along the first guide rail. A first linear module cylinder is provided on the first slider. A first linear module suction cup is provided on the movable part of the first linear module cylinder. The first linear module cylinder can drive the first linear module suction cup to perform lifting and lowering movements.

[0006] Furthermore, the second linear module includes a second guide rail and a second slider. The second slider can reciprocate along the second guide rail. A second linear module cylinder is provided on the second slider. The movable part of the second linear module cylinder is provided with a gripper cylinder bracket. The two ends of the gripper cylinder bracket are respectively provided with a first lower gripper cylinder and a second lower gripper cylinder. The movable part of the first lower gripper cylinder is connected to a first lower gripper. The first lower gripper cylinder can drive the first lower gripper to grip or release the three-dimensional cardboard box. The movable part of the second lower gripper cylinder is connected to a second lower gripper. The second lower gripper cylinder can drive the second lower gripper to grip or release the three-dimensional cardboard box.

[0007] Furthermore, there are two first linear modules, arranged side by side; there are also two second linear modules, arranged side by side.

[0008] Furthermore, the unfolding mechanism includes an unfolding cylinder and an unfolding suction cup. The unfolding cylinder is mounted above the second work station via an unfolding cylinder bracket, and the unfolding suction cup is mounted on the movable part of the unfolding cylinder. The unfolding cylinder can drive the unfolding suction cup to perform lifting and lowering movements.

[0009] Furthermore, the sealing mechanism includes an upper pressing edge assembly, a folding edge assembly, a forming plate, a lower pressing edge assembly, and top and bottom edge cylinders. The upper pressing edge assembly is disposed on the side of the frame at the second station. The folding edge assembly and the forming plate are disposed sequentially on the side of the frame at the third station along the conveying direction. The lower pressing edge assembly and the top and bottom edge cylinders are both disposed on the side of the frame at the fourth station.

[0010] Furthermore, the upper pressing assembly includes an upper pressing assembly seat, an upper pressing cylinder, and an upper pressing plate. The upper pressing assembly seat is mounted on the frame. The upper pressing cylinder is pivotally connected to the upper pressing assembly seat. The upper pressing plate is pivotally connected to the upper pressing assembly seat. The movable part of the upper pressing cylinder is rotatably connected to the upper pressing plate.

[0011] The lower pressing edge assembly includes a lower pressing edge assembly seat, a lower pressing edge cylinder, and a lower pressing edge plate. The lower pressing edge assembly seat is mounted on the frame. The lower pressing edge cylinder is pivotally connected to the lower pressing edge assembly seat. The lower pressing edge plate is pivotally connected to the lower pressing edge assembly seat. The movable part of the lower pressing edge cylinder is rotatably connected to the lower pressing edge plate.

[0012] Furthermore, the folding assembly includes a folding assembly seat, a folding cylinder, and a folding arm. The folding assembly seat is mounted on the frame, and the folding arm is rotatably mounted on the folding assembly seat. The folding cylinder is pivotally connected to the folding assembly seat, and the movable part of the folding cylinder is pivotally connected to one end of the folding arm.

[0013] Furthermore, a first lifting cylinder is provided above the third workstation, and a first upper gripper cylinder is provided on the movable part of the first lifting cylinder. The movable part of the first upper gripper cylinder is connected to a first upper gripper, and the first upper gripper cylinder can drive the first upper gripper to grip or release the three-dimensional cardboard box; a second lifting cylinder is provided above the fourth workstation, and a second upper gripper cylinder is provided on the movable part of the second lifting cylinder. The movable part of the second upper gripper cylinder is connected to a second upper gripper, and the second upper gripper cylinder can drive the second upper gripper to grip or release the three-dimensional cardboard box.

[0014] Furthermore, a holding cylinder is provided on the side of the second workstation.

[0015] The beneficial effects of this utility model are as follows: It provides a box-opening device with a reasonable structure that can automatically complete the box opening and bottom sealing operations throughout the entire process. The device conveys the paper box through two linear modules, unfolds the paper box into a three-dimensional paper box through an unfolding mechanism, and then folds one side of the three-dimensional paper box to seal the bottom through a sealing mechanism. This realizes the mechanization and automation of bottom sealing of the lock-bottom folding paper box, greatly reducing labor costs and improving packaging efficiency. Attached Figure Description

[0016] The specific structure of this utility model is described in detail below with reference to the accompanying drawings:

[0017] Figure 1 This is a front view of the overall structure of the box-opening device of this utility model;

[0018] Figure 2 This is a top view of the overall structure of the box-opening device of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the first linear module of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the second linear module of this utility model;

[0021] Figure 5 This is a schematic diagram of the unfolding mechanism of this utility model;

[0022] Figure 6 This is a schematic diagram of the upper pressure edge assembly of this utility model;

[0023] Figure 7 This is a schematic diagram of the lower pressure edge assembly of this utility model;

[0024] Figure 8 for Figure 2 A close-up structural diagram of the folded edge component in section A;

[0025] Figure 9This is a schematic diagram of the top and bottom edge cylinder of this utility model;

[0026] Figure 10 This is a schematic diagram of the structure of the first lifting cylinder and the first upper gripper of this utility model;

[0027] Figure 11 This is a schematic diagram of the folding sequence of this utility model;

[0028] 1-Rack;

[0029] 2-Paper box compartment; 21-Column; 22-Modible top plate; 23-Adjusting screw; 24-Thrust handle;

[0030] 3-Cardboard box;

[0031] 4-3D cardboard box; 41-Top tongue; 42-Left tongue; 43-Right tongue; 44-Bottom tongue;

[0032] 100 - First linear module; 110 - First guide rail; 120 - First slider; 130 - First linear module cylinder; 131 - First linear module suction cup; 150 - First driver;

[0033] 200 - Second linear module; 210 - Second guide rail; 220 - Second slider; 230 - Second linear module cylinder; 231 - Gripper cylinder bracket; 232 - First lower gripper cylinder; 2321 - First lower gripper; 2322 - First lower gripper cylinder suction cup; 233 - Second lower gripper cylinder; 2331 - Second lower gripper; 2332 - Second lower gripper cylinder suction cup; 250 - Second driver;

[0034] 300 - Deployment mechanism; 301 - Deployment cylinder; 302 - Deployment suction cup; 303 - Push-up cylinder;

[0035] 410 - Upper pressing edge assembly; 411 - Upper pressing edge assembly seat; 412 - Upper pressing edge cylinder; 413 - Upper pressing edge plate;

[0036] 420 - Folding assembly; 421 - Folding assembly seat; 422 - Folding cylinder; 423 - Folding arm;

[0037] 430 - Formed plate;

[0038] 440 - Lower pressure edge assembly; 441 - Lower pressure edge assembly seat; 442 - Lower pressure edge cylinder; 443 - Lower pressure edge plate;

[0039] 450 - Top and bottom edge cylinder; 451 - Top and bottom edge plate; 452 - Push rod;

[0040] 460-hold cylinder;

[0041] 470 - First lifting cylinder; 471 - First upper gripper cylinder; 4711 - First upper gripper; 472 - First upper gripper cylinder suction cup;

[0042] 480 - Second lifting cylinder. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0049] Example

[0050] See also Figures 1 to 11 This embodiment provides a box opening device, including a frame 1. The frame 1 includes a first station, a second station, a third station, and a fourth station in sequence along the conveying direction. The first station is provided with a carton compartment 2. The device includes a first linear module 100, a second linear module 200, an unfolding mechanism 300, and a sealing mechanism. The first linear module 100 and the second linear module 200 are arranged in sequence on the frame 1 along the conveying direction. The first linear module 100 is located below the first station and the second station, and the second linear module 200 is located below the second station, the third station, and the fourth station. The unfolding mechanism 300 is located above the second workstation, and the sealing mechanism is located on one side of the frame 1. The first linear module 100 is used to take out the paper boxes 3 one by one from the paper box compartment 2 and transport them to the second workstation. The unfolding mechanism 300 is used to unfold the paper boxes 3 into three-dimensional paper boxes 4. The second linear module 200 is used to transport the three-dimensional paper boxes 4 to the third workstation and to transport the three-dimensional paper boxes 4 from the third workstation to the fourth workstation. The sealing mechanism is used to fold and seal the bottom of the three-dimensional paper boxes 4.

[0051] In one embodiment, the cardboard box compartment consists of a column 21, a movable top plate 22, and side top plates. The column 21 is located between the first and second workstations of the frame 1. The side top plates are located on the left and right sides along the conveying direction. The movable top plate 22 is located at the end of the first workstation away from the second workstation. The movable top plate 22 is connected to an adjusting screw 23. The end of the adjusting screw 23 away from the first workstation is provided with a handle 24. By rotating the adjusting screw 23 with the handle 24, the distance between the movable top plate 22 and the column 21 is changed to accommodate cardboard boxes 3 of different specifications.

[0052] In order to smoothly transport the cardboard box 3 from the first station to the second station, the first linear module 100 includes a first guide rail 110 and a first slider 120. The first slider 120 can reciprocate along the first guide rail 110. The first slider 120 is provided with a first linear module cylinder 130. The movable part of the first linear module cylinder 130 is provided with a first linear module suction cup 131. The first linear module cylinder 130 can drive the first linear module suction cup 131 to perform lifting and lowering movements.

[0053] Specifically, the first linear module 100 also includes a first driver 150. The drive shaft of the first driver 150 is connected to a first lead screw, which is threadedly connected to a first slider 120. The first driver 150 can rotate the first lead screw to make the first slider 120 reciprocate along the length of the first lead screw, which can ensure the driving efficiency and driving accuracy of the first linear module 100.

[0054] The second linear module 200 includes a second guide rail 210 and a second slider 220. The second slider 220 can reciprocate along the second guide rail 210. A second linear module cylinder 230 is provided on the second slider 220.

[0055] Specifically, the second linear module 200 also includes a second driver 250. The drive shaft of the second driver 250 is connected to a second lead screw, which is threadedly connected to the second slider 220. The second driver 250 can rotate the second lead screw to make the second slider 220 reciprocate along the length of the second lead screw, which can ensure the driving efficiency and driving accuracy of the second linear module 200.

[0056] The movable part of the second linear module cylinder 230 is provided with a gripper cylinder bracket 231. The two ends of the gripper cylinder bracket 231 are respectively provided with a first lower gripper cylinder 232 and a second lower gripper cylinder 233. The movable part of the first lower gripper cylinder 232 is connected to a first lower gripper 2321. The first lower gripper cylinder 232 can drive the first lower gripper 2321 to grip or release the three-dimensional cardboard box 4. The movable part of the second lower gripper cylinder 233 is connected to a second lower gripper 2331. The second lower gripper cylinder 233 can drive the second lower gripper 2331 to grip or release the three-dimensional cardboard box 4.

[0057] In one embodiment, the movable parts of the first lower gripper cylinder 232 are disposed on opposite sides of the first lower gripper cylinder 232. Each movable part of the first lower gripper cylinder 232 is connected to a clamping piece. The first lower gripper cylinder 232 drives the two movable parts to move closer or further apart, thereby achieving the gripping or releasing of the three-dimensional cardboard box 4. The movable parts of the second lower gripper cylinder 233 are disposed on opposite sides of the second lower gripper cylinder 233. Each movable part of the second lower gripper cylinder 233 is connected to a clamping piece. The second lower gripper cylinder 233 drives the two movable parts to move closer or further apart, thereby achieving the gripping or releasing of the three-dimensional cardboard box 4.

[0058] By setting the first lower gripper 2321 and the second lower gripper 2331, the three-dimensional paper box 4 can be clamped, ensuring the stability of the three-dimensional paper box 4's posture when the sealing mechanism folds and seals the bottom of the three-dimensional paper box 4, and allowing the folding and sealing work to proceed smoothly.

[0059] To avoid interference between the first linear module 100 and the second linear module 200 during operation, which would affect the normal operation of the unpacking process, the first linear module 100 and the second linear module 200 are staggered. In one embodiment, the first linear module is positioned closer to the left side of the conveying direction, and the second linear module is positioned closer to the right side of the conveying direction, thereby avoiding interference between the first linear module 100 and the second linear module 200 at the second workstation.

[0060] In order to speed up the conveying efficiency, there are two first linear modules 100, which are arranged side by side; there are two second linear modules 200, which are arranged side by side.

[0061] The first linear module 100 and the second linear module 200 are misaligned and form a group. For example, the first linear module 100 on the left side along the conveying direction and the second linear module 200 on the right side along the conveying direction form the first group, and the first linear module 100 on the right side along the conveying direction and the second linear module 200 on the left side along the conveying direction form the second group, so as to ensure that the two groups of linear modules will not interfere with each other at the second station when they are conveying.

[0062] In one embodiment, the first lower gripper cylinder 232 is further provided with a first lower gripper cylinder suction cup 2322; the second lower gripper cylinder 233 is further provided with a second lower gripper cylinder suction cup 2332.

[0063] By setting a first lower gripper cylinder suction cup 2322 on the first lower gripper cylinder 232 and a second lower gripper cylinder suction cup 2332 on the second lower gripper cylinder 233, the three-dimensional cardboard box 4 can be fixed by vacuum adsorption, ensuring the stability of the three-dimensional cardboard box 4 when the sealing mechanism folds and seals the bottom of the three-dimensional cardboard box 4, and allowing the folding and sealing work to proceed smoothly.

[0064] In order to enable the folded cardboard box 3 to unfold into a three-dimensional cardboard box 4, the unfolding mechanism 300 includes an unfolding cylinder 301 and an unfolding suction cup 302. The unfolding cylinder 301 is set above the second work station via an unfolding cylinder bracket, and the unfolding suction cup 302 is set on the movable part of the unfolding cylinder 301. The unfolding cylinder 301 can drive the unfolding suction cup 302 to perform lifting and lowering movements.

[0065] When the first linear module 100 transports the cardboard box 3 to the second work station, the unfolding cylinder 301 drives the unfolding suction cup 302 to move downward and suck up the top surface of the cardboard box 3. At the same time, the first linear module suction cup 131 of the first linear module 100 also keeps sucking up the bottom surface of the cardboard box 3. Then the unfolding cylinder 301 drives the unfolding suction cup 302 to move upward, so that the cardboard box 3 in the folded state can be unfolded into a three-dimensional cardboard box 4 with openings on the left and right ends.

[0066] In one embodiment, to further ensure the unfolding effect of the cardboard box 3, the second station is also equipped with a straightening cylinder 303. The movable part of the straightening cylinder 303 can reciprocate along the conveying direction of the cardboard box 3. After the unfolding cylinder 301 drives the unfolding suction cup 302 to move upward to unfold the cardboard box 3, the cardboard box 3 may still be in a skewed state. In order to straighten the cardboard box 3, the straightening cylinder 303 drives the movable part of the straightening cylinder to move to the side of the three-dimensional cardboard box 4 and pushes the three-dimensional cardboard box 4 straight so that the subsequent processes can proceed smoothly.

[0067] The sealing mechanism includes an upper pressing edge assembly 410, a folding edge assembly 420, a forming plate 430, a lower pressing edge assembly 440, and a top and bottom edge cylinder 450. The upper pressing edge assembly 410 is disposed on the side of the frame 1 at the second station. The folding edge assembly 420 and the forming plate 430 are disposed sequentially on the side of the frame 1 at the third station along the conveying direction. The lower pressing edge assembly 440 and the top and bottom edge cylinder 450 are both disposed on the side of the frame 1 at the fourth station.

[0068] The upper pressing edge assembly 410 is used to bend the upper tongue 41 of the bottom of the three-dimensional paper box 4 by 90 degrees. The folding edge assembly 420 and the forming plate 430 are used to bend the left tongue 42 and the right tongue 43 of the bottom of the three-dimensional paper box 4 by 90 degrees. The lower pressing edge assembly 440 is used to bend the lower tongue 44 of the bottom of the three-dimensional paper box 4 by 90 degrees. The top and bottom edge cylinder 450 is used to push the lower tongue 44 into the three-dimensional paper box 4 to seal the bottom.

[0069] The upper pressing edge assembly 410 includes an upper pressing edge assembly base 411, an upper pressing edge cylinder 412, and an upper pressing edge plate 413. The upper pressing edge assembly base 411 is disposed on the frame 1. The upper pressing edge cylinder 412 is pivotally connected to the upper pressing edge assembly base 411. The upper pressing edge plate 413 is pivotally connected to the upper pressing edge assembly base 411. The movable part of the upper pressing edge cylinder 412 is rotatably connected to the upper pressing edge plate 413. The upper pressing edge cylinder 412 can drive the upper pressing edge plate 413 to rotate along the position pivotally connected to the upper pressing edge assembly base 411 through the movable part of the upper pressing edge cylinder, thereby realizing the bending of the upper tongue 41 of the three-dimensional paper box 4 downward by 90 degrees along the crease.

[0070] The lower pressing edge assembly 440 includes a lower pressing edge assembly base 441, a lower pressing edge cylinder 442, and a lower pressing edge plate 443. The lower pressing edge assembly base 441 is mounted on the frame 1. The lower pressing edge cylinder 442 is pivotally connected to the lower pressing edge assembly base 441, and the lower pressing edge plate 443 is pivotally connected to the lower pressing edge assembly base 441. The movable part of the lower pressing edge cylinder 442 is rotatably connected to the lower pressing edge plate 443. The lower pressing edge cylinder 442 can drive the lower pressing edge plate 443 to rotate along the pivot position of the lower pressing edge assembly base 441 through the movable part of the lower pressing edge cylinder, thereby realizing the bending of the lower tongue 44 of the three-dimensional paper box 4 upward by 90 degrees along the crease.

[0071] The folding assembly 420 includes a folding assembly base 421, a folding cylinder 422, and a folding arm 423. The folding assembly base 421 is mounted on the frame 1, and the folding arm 423 is rotatably mounted on the folding assembly base 421. The folding cylinder 422 is pivotally connected to the folding assembly base 421, and the movable part of the folding cylinder 422 is pivotally connected to one end of the folding arm 423. The folding cylinder 422 can drive the folding arm 423 to rotate along the pivot position of the folding assembly base 421 through the movable part of the folding cylinder 422, thereby bending the left tongue 42 of the three-dimensional paper box 4 90 degrees to the right along the crease.

[0072] The movable part of the top and bottom edge cylinder 450 is provided with a top and bottom edge plate 451. Each end of the top and bottom edge plate 451 is provided with a push rod 452. The top and bottom edge cylinder 450 drives the movable part to move towards the bottom of the three-dimensional paper box. The push rod 452 pushes the lower tongue 44 of the three-dimensional paper box into the three-dimensional paper box 4 to achieve bottom sealing.

[0073] During the process of the second linear module 200 moving the three-dimensional cardboard box 4 from the second station to the third station, the forming plate 430 can bend the right tongue 43 of the three-dimensional cardboard box 4 90 degrees to the left along the indentation. Preferably, the forming plate 430 has a guide surface at one end near the second station to ensure that the left tongue 42 of the three-dimensional cardboard box 4 will not be interfered with by the forming plate 430 when the three-dimensional cardboard box 4 is transported from the third station to the fourth station.

[0074] Meanwhile, to ensure that the upper tongue 41 of the three-dimensional cardboard box 4 is in a folded position during the process of the second linear module 200 moving the three-dimensional cardboard box 4 from the second station to the third station, a holding cylinder 460 is provided on the side of the second station. When the upper tongue 41 of the three-dimensional cardboard box 4 is folded into place, the holding cylinder 460 drives the movable part of the holding cylinder 460 to extend and abut against the upper tongue 41 of the three-dimensional cardboard box 4, and maintains the abutment state during the conveying of the three-dimensional cardboard box 4. When the left tongue 42 and right tongue 43 of the three-dimensional cardboard box 4 are folded and cover the upper tongue 41, the holding cylinder 460 drives the movable part of the holding cylinder to retract, preparing for the next holding action.

[0075] To ensure the stability of the three-dimensional cardboard box 4 during the folding and sealing process, and to facilitate smooth operation, a first lifting cylinder 470 is provided above the third station. The movable part of the first lifting cylinder 470 is equipped with a first upper gripper cylinder 471, which is connected to a first upper gripper 4711. The first upper gripper cylinder 471 can drive the first upper gripper 4711 to grip or release the three-dimensional cardboard box 4. A second lifting cylinder 480 is provided above the fourth station. The movable part of the second lifting cylinder 480 is equipped with a second upper gripper cylinder, which is connected to a second upper gripper. The second upper gripper cylinder can drive the second upper gripper to grip or release the three-dimensional cardboard box 4.

[0076] In one embodiment, the movable parts of the first upper gripper cylinder 471 are disposed on opposite sides of the first upper gripper cylinder 471. Each movable part of the first upper gripper cylinder 471 is connected to a clamping piece. The first upper gripper cylinder 471 drives the two movable parts to move closer or further apart, thereby achieving the gripping or releasing of the three-dimensional cardboard box 4. The movable parts of the second upper gripper cylinder are disposed on opposite sides of the first upper gripper cylinder. Each movable part of the first upper gripper cylinder is connected to a clamping piece. The second upper gripper cylinder drives the two movable parts to move closer or further apart, thereby achieving the gripping or releasing of the three-dimensional cardboard box 4.

[0077] To ensure the fixation of the three-dimensional cardboard box 4, the first upper gripper cylinder 471 is provided with a first upper gripper cylinder suction cup 472; the second upper gripper cylinder is provided with a second upper gripper cylinder suction cup.

[0078] By setting a first upper gripper cylinder suction cup 472 on the first upper gripper cylinder 471 and a second upper gripper cylinder suction cup on the second upper gripper cylinder, the first upper gripper cylinder suction cup 472 or the second upper gripper cylinder suction cup can fix the three-dimensional cardboard box 4 by vacuum adsorption. When the sealing mechanism folds and seals the bottom of the three-dimensional cardboard box 4, the stability of the three-dimensional cardboard box posture is ensured, and the folding and sealing work is carried out smoothly.

[0079] As can be seen from the above description, the beneficial effects of this utility model are as follows: It provides a box-opening device with a reasonable structure that can automatically complete the box opening and sealing operations throughout the entire process. The device conveys the paper box through two linear modules, unfolds the paper box into a three-dimensional paper box through an unfolding mechanism, and then folds one side of the three-dimensional paper box to seal the bottom through a sealing mechanism, thereby replacing the manual work of opening and sealing the box, greatly reducing labor costs and improving packaging efficiency.

[0080] The working method of this technical solution is as follows: A folded cardboard box is placed into the cardboard box compartment by a robotic arm or manually. The first linear module moves the first slider to the bottom of the cardboard box compartment at the first station. The first linear module cylinder raises the first linear module suction cup and places it against the bottom surface of the bottommost cardboard box in the cardboard box compartment. The first linear module suction cup holds the bottommost cardboard box in the cardboard box compartment with negative pressure. Then, the first linear module cylinder lowers the first linear module suction cup, thereby removing the bottommost cardboard box from the bottom of the cardboard box compartment. Then, the first linear module moves the first slider to the second station, thus completing the conveying of the cardboard box from the first station to the second station.

[0081] After the cardboard box moves to the second station, the unfolding cylinder drives the unfolding suction cup to move downwards, using negative pressure to hold the top surface of the cardboard box. Simultaneously, the first linear module suction cup holds the bottom surface of the cardboard box. The unfolding cylinder then drives the unfolding suction cup to move upwards, unfolding the folded cardboard box into a three-dimensional box with openings at both ends. At this point, the straightening cylinder drives its movable part to move to the side of the three-dimensional cardboard box, straightening it.

[0082] After the cardboard box unfolds into a three-dimensional box and is pushed upright, the upper pressing cylinder drives the upper pressing plate to rotate, bending the upper tongue of the bottom of the three-dimensional cardboard box by 90 degrees. At this time, the holding cylinder drives the movable part of the holding cylinder to extend and abut against the bent upper tongue of the three-dimensional cardboard box. The upper pressing cylinder drives the upper pressing plate to rotate and reset. The second linear module moves the first lower gripper to the bottom of the three-dimensional cardboard box. The second linear module cylinder drives the gripper cylinder support to rise. The suction cup of the first lower gripper cylinder sucks the bottom surface of the three-dimensional cardboard box through negative pressure. At the same time, the first lower gripper cylinder drives the first lower gripper to grab the three-dimensional cardboard box. Then the suction cup of the first linear module cancels the suction on the bottom surface of the three-dimensional cardboard box, and the unfolding suction cup also cancels the suction on the top surface of the three-dimensional cardboard box. The second linear module moves the three-dimensional cardboard box from the second station to the third station. During this process, the holding cylinder drives the movable part of the holding cylinder to extend, so that the movable part of the holding cylinder abuts against the bent upper tongue of the three-dimensional cardboard box during the conveying process.

[0083] During the process of moving the 3D cardboard box from the second station to the third station using the second linear module, the forming plate can bend the right tongue of the 3D cardboard box 90 degrees to the left along the crease. After the 3D cardboard box moves to the third station, the holding cylinder drives the movable part of the holding cylinder to retract, the first lifting cylinder lowers the first upper gripper cylinder, and the suction cup of the first upper gripper cylinder picks up the top surface of the 3D cardboard box. At the same time, the first upper gripper cylinder drives the first upper gripper to grip and position the 3D cardboard box. The folding cylinder drives the folding arm to rotate along the pivot position of the folding component seat, bending the left tongue of the 3D cardboard box 90 degrees to the right along the crease. Then, the first upper gripper cylinder drives the first upper gripper to release the 3D cardboard box, the suction cup of the first upper gripper cylinder cancels the gripping of the top surface of the 3D cardboard box, and the first lifting cylinder raises the first upper gripper cylinder. Meanwhile, the second linear module of the second group moves the second lower gripper of the second group to the bottom of the three-dimensional cardboard box. The cylinder of the second linear module of the second group drives the gripper cylinder support to rise. The suction cup of the second lower gripper cylinder of the second group uses negative pressure to suck up the bottom surface of the three-dimensional cardboard box. The cylinder of the second lower gripper of the second group drives the second lower gripper of the second group to grab the three-dimensional cardboard box. At this time, the cylinder of the first lower gripper of the first group drives the first lower gripper of the first group to release the three-dimensional cardboard box. The suction cup of the first lower gripper cylinder cancels the suction on the bottom surface of the three-dimensional cardboard box and lowers the gripper cylinder support of the first group. Then, the second linear module of the second group transports the three-dimensional cardboard box from the third station to the fourth station.

[0084] After the 3D cardboard box is conveyed to the fourth station, the second lifting cylinder lowers the second upper gripper cylinder. The suction cup of the second upper gripper cylinder uses negative pressure to hold the top surface of the 3D cardboard box. At the same time, the second upper gripper cylinder drives the second upper gripper to grip and position the 3D cardboard box. The lower pressing edge cylinder drives the lower pressing edge plate to rotate along the pivot position of the lower pressing edge assembly seat, bending the lower tongue of the 3D cardboard box upwards by 90 degrees along the indentation. Then, the lower pressing edge plate is reset. Finally, the top and bottom edge cylinders drive the movable part of the top and bottom edge cylinders to insert the lower tongue of the 3D cardboard box into the inside of the upper tongue of the cardboard box, thereby sealing the bottom of the 3D cardboard box and obtaining a 3D cardboard box with a sealed bottom. After completion, the second lower gripper cylinder of the second linear module of the second group drives the second lower gripper of the second group to release the three-dimensional cardboard box. The suction cup of the second lower gripper cylinder of the second group cancels its gripping of the bottom surface of the three-dimensional cardboard box. Then, the gripper cylinder support of the second linear module of the second group is lowered. At the same time, the second upper gripper cylinder drives the second upper gripper to release the three-dimensional cardboard box. The suction cup of the second upper gripper cylinder cancels its gripping of the top surface of the three-dimensional cardboard box, completely releasing the three-dimensional cardboard box that has completed the bottom sealing work. The three-dimensional cardboard box that has completed the bottom sealing work is then pushed off the box-making device by the next three-dimensional cardboard box that moves to the fourth station, thus completing the bottom sealing of a lock-bottom folding cardboard box.

[0085] It will be readily understood by those skilled in the art that the above embodiments can be freely combined and superimposed without conflict.

[0086] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A carton opening device, comprising a frame, wherein the frame comprises a first station, a second station, a third station and a fourth station in sequence along a conveying direction, wherein the first station is provided with a carton bin, and wherein: The device includes a first linear module, a second linear module, an unfolding mechanism and a sealing mechanism. The first linear module and the second linear module are sequentially arranged on a frame along a conveying direction. The unfolding mechanism is arranged above a second station, and the sealing mechanism is arranged on one side of the frame. The first linear module is used to take out cartons from a carton bin one by one and convey them to the second station. The unfolding mechanism is used to unfold the cartons into a three-dimensional carton. The second linear module is used to convey the three-dimensional carton to a third station, and convey the three-dimensional carton at the third station to a fourth station. The sealing mechanism is used to fold and seal the bottom of the three-dimensional carton.

2. The box opening device according to claim 1, characterized in that: The first linear module includes a first guide rail and a first slider, the first slider can reciprocate along the first guide rail, the first slider is provided with a first linear module cylinder, the movable part of the first linear module cylinder is provided with a first linear module suction cup, and the first linear module cylinder can drive the first linear module suction cup to perform lifting movement.

3. The box opening device according to claim 2, characterized in that: The second linear module includes a second guide rail and a second slider, the second slider can reciprocate along the second guide rail, the second slider is provided with a second linear module cylinder, the movable part of the second linear module cylinder is provided with a clamping cylinder bracket, the two ends of the clamping cylinder bracket are respectively provided with a first lower clamping cylinder and a second lower clamping cylinder, the movable part of the first lower clamping cylinder is connected to the first lower clamping jaw, the first lower clamping jaw cylinder can drive the first lower clamping jaw to grasp or release the three-dimensional paper box; the movable part of the second lower clamping jaw cylinder is connected to the second lower clamping jaw, the second lower clamping jaw cylinder can drive the second lower clamping jaw to grasp or release the three-dimensional paper box.

4. The box opening device according to claim 3, characterized in that: There are two first linear modules, which are arranged in parallel; there are two second linear modules, which are arranged in parallel.

5. The box opening device according to claim 4, characterized in that: The unfolding mechanism includes an unfolding cylinder and an unfolding suction cup. The unfolding cylinder is arranged above the second workstation through an unfolding cylinder bracket. The unfolding suction cup is arranged on the movable part of the unfolding cylinder. The unfolding cylinder can drive the unfolding suction cup to perform lifting movement.

6. The box opening device according to claim 5, characterized in that: The box sealing mechanism includes an upper edge pressing assembly, a folding assembly, a forming plate, a lower edge pressing assembly and top and bottom edge cylinders. The upper edge pressing assembly is arranged on the side of the frame at the second station, the folding assembly and the forming plate are arranged in sequence along the conveying direction on the side of the frame at the third station, and the lower edge pressing assembly and the top and bottom edge cylinders are both arranged on the side of the frame at the fourth station.

7. The box opening device according to claim 6, characterized in that: The upper edge pressing assembly comprises an upper edge pressing assembly seat, an upper edge pressing cylinder and an upper edge pressing plate, wherein the upper edge pressing assembly seat is arranged on a frame, the upper edge pressing cylinder is pivotally connected to the upper edge pressing assembly seat, the upper edge pressing plate is pivotally connected to the upper edge pressing assembly seat, and the movable part of the upper edge pressing cylinder is rotatably connected to the upper edge pressing plate; The lower edge pressure assembly includes a lower edge pressure assembly seat, a lower edge pressure cylinder and a lower edge pressure plate. The lower edge pressure assembly seat is arranged on a frame, the lower edge pressure cylinder is pivotally connected to the lower edge pressure assembly seat, the lower edge pressure plate is pivotally connected to the lower edge pressure assembly seat, and the movable part of the lower edge pressure cylinder is rotatably connected to the lower edge pressure plate.

8. The box opening device according to claim 7, characterized in that: The folding assembly includes a folding assembly seat, a folding cylinder and a folding arm. The folding assembly seat is arranged on a frame, and the folding arm is rotatably arranged on the folding assembly seat. The folding cylinder is pivotally connected to the folding assembly seat, and the movable part of the folding cylinder is pivotally connected to one end of the folding arm.

9. The box opening device according to claim 8, characterized in that: A first lifting cylinder is provided above the third station, a first upper clamping claw cylinder is provided on the movable part of the first lifting cylinder, a first upper clamping claw is connected to the movable part of the first upper clamping claw cylinder, and the first upper clamping claw cylinder can drive the first upper clamping claw to grab or release the three-dimensional paper box; A second lifting cylinder is provided above the fourth workstation, and a second upper clamping claw cylinder is provided on the movable part of the second lifting cylinder. The movable part of the second upper clamping claw cylinder is connected to the second upper clamping claw, and the second upper clamping claw cylinder can drive the second upper clamping claw to grasp or release the three-dimensional paper box.

10. The box opening device according to claim 9, characterized in that: A holding cylinder is provided on the side of the second station.

Images