Large carton unpacking machine

Abstract

The invention discloses a large carton unpacking machine, which relates to the technical field of unpacking machines, and comprises a coaming structure, a ground cover structure, an upper cover structure, a finished product on-line structure, an overturning frame, a fixed side plate, an overturning side plate and an auxiliary structure. The overturning frame is driven by the driving structure to rotate in the surrounding plate structure, and the large carton can be erected and overturned. The auxiliary structure is installed on one side of the overturning frame, when the overturning side plate is overturned, the large carton with the deflected angle can be centralized, and the carton can be clamped and fixed in an auxiliary mode in the overturning process of the overturning frame. Multiple sets of bottom plates are arranged at the bottom of the inner side of the overturning frame, and one set of edge is U-shaped. The auxiliary structure is matched with the abutting structure, and operations such as straightening and clamping of the carton are achieved. All structures of the carton unpacking machine work cooperatively, the problems that in the large carton unpacking process, a carton is prone to shifting, and the carton is difficult to stand can be effectively solved, and the carton unpacking efficiency and the packaging quality are improved.

Description

Technical Field

[0001] The present invention relates to the technology of box-opening machines, specifically large cardboard box-opening machines. Background Art

[0002] As is well known, in the packaging industry, the operation of opening large cardboard boxes is an important link in the product packaging process. Existing box-opening machines are widely used in the packaging production lines of various products to open and assemble folded large cardboard boxes to meet the product boxing requirements.

[0003] The deficiencies of the existing technology are as follows. On the one hand, when some box-opening machines process large cardboard boxes, there is a lack of effective straightening and positioning mechanisms for large cardboard boxes with angular deflection or position deviation on the equipment. When the cardboard box is offset, problems are likely to occur in subsequent box-standing and box-opening operations, such as the inaccurate position of the erected cardboard box, which affects the subsequent assembly of the bottom cover and the top cover, reducing production efficiency and packaging quality. On the other hand, during the box-standing process, there is a high degree of dependence on components such as vacuum generators. If only relying on the vacuum generator to stand up the cardboard box, not only does it increase the energy consumption of the equipment, but also when the cardboard box is large in size, heavy in weight or the surface material is not conducive to vacuum adsorption, the vacuum generator may not be able to stably grasp the cardboard box, resulting in the failure of box-standing and even damage to the cardboard box. Summary of the Invention

[0004] The purpose of the present invention is to provide a large cardboard box-opening machine to solve the above deficiencies in the existing technology.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: including: a side plate structure, a bottom cover structure, a top cover structure and a finished product on-line structure, and also including:

[0006] A flipping frame, rotatably installed in the side plate structure through a driving structure to stand up and flip a large cardboard box;

[0007] Fixed side plates and flipping side plates, symmetrically installed on both sides of the flipping frame;

[0008] An auxiliary structure, rotatably installed on one side of the flipping frame. During the process of the flipping side plate flipping from the flat state to the erected state, the flipping side plate straightens the large cardboard box with angular deflection on the surface, and at the same time, assists in clamping and fixing the large cardboard box during the flipping process of the flipping frame.

[0009] As a further description of the above technical solution: Multiple groups of bottom plates are independently installed at the inner bottom of the flipping frame. One group of the bottom plates at the edge is set in a U shape, and half of the bottom is in a cavity shape and the other half is closed.

[0010] As a further description of the above technical solution: the auxiliary structure includes: a fixed rod fixedly inserted in the bottom of the flip side panel, the inner side of the bottom plate is rotatably connected to the flip side panel via a bearing, both ends of the fixed rod are fixedly connected to a transmission rod, the transmission rod is connected to the driving structure for the rotation of the flip side panel, the transmission rod is rotatably inserted in the triangular block and the sleeve rod, the sleeve rod and the triangular block are fixedly installed at both ends of the inner side of the bottom plate, and the flip side panel transmission is connected to the resistance structure.

[0011] As a further description of the above technical solution: the interference structure includes a triangular block and a sleeve rod, the triangular blocks are arranged on both sides of the bottom inner side plate, a interference groove is opened on one side of the surface of the triangular block, a interference rod is connected with the sliding interference in the interference groove, the interference rod is fixedly installed on the end face of the bottom block, the bottom block is fixedly installed on one end of the push plate, the push plate surface is spaced apart with rotating shafts, the rotating shafts are connected to the bottom end of the top plate, the top end of the top plate is connected to one end of the folding plate by a hinge, the other end of the folding plate is rotatably connected to the inner side wall of the folding groove, and the folding grooves are correspondingly opened on both sides of the flip side plate.

[0012] As a further description of the above technical solution: the other end of the push plate is fixedly connected to a resistance block, the end face of the resistance block is connected to the inner wall of the flip side plate through a reset spring, the resistance block is slidably and resistively connected in the limit groove, the limit grooves are correspondingly opened at the two ends of the bottom of the vacuum generator, the bottom of the vacuum generator is connected to the inner wall of the flip side plate through a compression spring, a suction cup is fixedly installed on the surface of the vacuum generator, the suction cup is telescopically installed in the through groove, and the through groove is opened at the top of the inner side of the flip side plate.

[0013] As a further description of the above technical solution: a sliding block is fixedly installed at the bottom of the push plate, and the sliding block is slidably connected in a sliding rail, and the sliding rail is opened on the inner wall of the flip side plate.

[0014] As a further description of the above technical solution: auxiliary wheels are rotatably installed on both sides of the resistance rod, and the resistance rod is disc-shaped and slidably connected in the resistance groove. Both ends of the auxiliary wheels pass through both sides of the resistance rod and contact the two side walls of the resistance groove, thereby improving the sliding of the resistance rod in the resistance groove.

[0015] As a further description of the above technical solution: a pulley is rotatably installed on the inner side wall of the limiting groove, and the pulley is rollingly connected to the surface of the resistance block.

[0016] As a further description of the above technical solution: the resistance block is in the shape of a right-angled trapezoid, and the inclined surface of the resistance block corresponds to the top side of the flip side plate. During the adjustment process from a flat state to an upright state, the flip frame pushes the push plate to slide toward the top of the flip side plate, and slides the resistance groove from the plane position of the inclined top of the resistance block surface.

[0017] In the above technical solution, in the large carton opening machine provided by the present invention, a vacuum generator is fixedly installed on the top of the fixed side plate.

[0018] The present invention has the following beneficial effects:

[0019] 1. Straightening and positioning: The auxiliary structure and the flip side panel work together to straighten the large cartons that are placed at an angle when the flip side panel is flipped from a flat state to an upright state, ensuring the accurate position of the large cartons during the standing process, avoiding subsequent assembly difficulties due to carton offset, and improving the accuracy and stability of unpacking.

[0020] 2. Reduce vacuum dependence: When the flip side panel is laid flat and erected, the work of the vacuum generator in the upper box erection mechanism can be reduced, and in some cases, the vacuum generator is not even needed. The upper vacuum generator only needs to lift the carton upward for a small distance and then separate it. Subsequently, the carton can be clamped and erected by the cooperation of the flip side panel and the fixed side panel, which reduces the dependence on the vacuum generator and improves the adaptability of the equipment.

[0021] 3. Auxiliary clamping and fixing: During the process of flipping and erecting the side panels, a series of actions of the resistance structure are used to make the suction cup of the vacuum generator extend to contact the side of the carton. At the same time, the folding plate is pushed out from the folding groove to squeeze, straighten and clamp the carton, and cooperate with the fixed side panels to achieve a more stable clamping and fixing of the carton, thereby ensuring the stability of the carton during the unpacking process.

[0022] 4. Efficient structural coordination: The multiple structural parts within each structure, such as the enclosure structure, ground cover structure, upper cover structure and finished product online structure, cooperate with each other. From the unfolding of the enclosure, the assembly of the ground cover and upper cover to the transportation of the finished product online, the entire unpacking process is coherent and smooth, which improves the efficiency and automation of the unpacking operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 A schematic diagram of the overall structure of the box opener provided by an embodiment of the present invention;

[0025] Figure 2 The embodiment of the present invention provides Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 A schematic diagram of the structure of a flip frame provided by an embodiment of the present invention;

[0027] Figure 4Schematic diagram of the fixed side plate provided by the embodiment of the present invention;

[0028] Figure 5 Schematic diagram of the flip side plate provided by the embodiment of the present invention;

[0029] Figure 6 Schematic diagram of the bottom plate provided by the embodiment of the present invention;

[0030] Figure 7 Schematic diagram of the push plate provided by the embodiment of the present invention;

[0031] Figure 8 Schematic diagram of the triangular block provided by the embodiment of the present invention;

[0032] Figure 9 Provided by the embodiment of the present invention Figure 7 Enlarged view at B in;

[0033] Figure 10 Schematic diagram of the vacuum generator provided by the embodiment of the present invention;

[0034] Figure 11 Schematic diagram of the limit groove provided by the embodiment of the present invention.

[0035] Explanation of reference numerals:

[0036] 1 - Enclosure structure; 2 - Floor cover structure; 3 - Upper cover structure; 4 - Finished product on - line structure; 5 - Flip frame; 6 - Driving structure; 7 - Vacuum generator; 8 - Fixed side plate; 9 - Bottom plate; 10 - Flip side plate; 11 - Suction cup; 12 - Through groove; 13 - Folding groove; 14 - Folding plate; 15 - Fixed rod; 16 - Triangular block; 17 - Transmission rod; 18 - Slide rail; 19 - Push plate; 20 - Rotating shaft; 21 - Return spring; 22 - Bottom block; 23 - Contact block; 24 - Pulley; 25 - Top plate; 26 - Slide block; 27 - Contact rod; 28 - Auxiliary wheel; 29 - Sleeve rod; 30 - Contact groove; 31 - Limit groove; 32 - Compression spring. Detailed implementation manners

[0037] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further introduced in detail below in conjunction with the accompanying drawings.

[0038] Please refer to Figures 1-11 , the embodiment of the present invention provides a technical solution for a large cardboard box unpacking machine: including an enclosure structure 1, a floor cover structure 2, an upper cover structure 3 and a finished product on - line structure 4, and further including:

[0039] A flip frame 5, rotatably installed in the enclosure structure 1 through a driving structure 6 to erect and flip the large cardboard box;

[0040] The fixed side plates 8 and the flipping side plates 10 are symmetrically installed on both sides of the flipping frame 5 in a left-right symmetry manner;

[0041] An auxiliary structure is rotatably installed on one side of the flipping frame 5. During the process of flipping the flipping side plate 10 from the laid - flat state to the erected state, the flipping side plate 10 straightens the large carton with an angular deflection on its surface, and at the same time, assists in clamping and fixing the large carton during the flipping process of the flipping frame 5.

[0042] During the process of opening the large carton, the specific steps are as follows:

[0043] S1. The side - panel structure 1 unfolds the side - panels folded around the large carton;

[0044] During this process, multiple structural parts are arranged to cooperate with each other inside the side - panel structure 1. The specific multiple structural parts include:

[0045] Conveyor mechanism: The motor drives the chain to rotate through chain drive. The chain drives the side - panel material frame to move through friction, thereby realizing the movement of the material frame.

[0046] Loading mechanism: The X - axis module drives the slider 26 to move through shaft drive. The slider 26 drives the suction cup 11 gripper to move above the material frame. The cylinder drives the gripper to move up and down to a specified position, and the vacuum generator 7 triggers vacuum suction to pick up the side - panel.

[0047] Buffer mechanism: The electric roller drives the driven roller through multi - wedge belt drive. The roller drives the side - panel to move back and forth through friction, thereby realizing the movement of the side - panel.

[0048] Box - standing mechanism: The Z - axis electric cylinder drives the suction cup 11 gripper to move up and down through shaft drive. When it reaches the specified position, the vacuum generator 7 triggers vacuum suction to pick up the side - panel. At the same time, the X - axis module and the Z - axis electric cylinder cooperate in a curvilinear motion to transform the side - panel from the laid - flat state to the standing state.

[0049] Flipping mechanism: The motor drives the shaft to rotate through shaft drive. The side - panel is ensured to maintain its standing posture during the flipping process under the combined action of the suction cup 11 and the cylinder.

[0050] Clamping mechanism: The X - axis module drives the slider 26 to move through shaft drive. The slider 26 drives the suction cup 11 gripper to move above the material frame. The electric cylinder drives the gripper to move up and down to a specified position, and the cylinder acts to grab the side - panel and move the side - panel to the assembly station.

[0051] S2: The bottom - cover structure 2 shapes the bottom - cover of the large carton and assembles and fixes it with the unfolded side - panels;

[0052] During this process, multiple structural parts are arranged to cooperate with each other inside the bottom - cover structure 2, specifically including:

[0053] Loading mechanism: The X-axis module drives the slider 26 to move through synchronous belt drive, and the slider 26 drives the suction cup 11 gripper to move above the material box. The cylinder drives the gripper to move up and down to the specified position, and the vacuum generator 7 triggers vacuum suction of the bottom cover.

[0054] Pushing mechanism: The servo motor drives the push plate 19 through synchronous belt drive, pushes the bottom cover to the intermediate buffer position, and the solenoid valve drives the cylinder to retract, so that the bottom cover is placed in the center. After centering, the push plate 19 pushes the bottom cover to the specified position of the lid folding machine.

[0055] Lid folding mechanism: The solenoid valve drives the front and rear lid folding cylinders to extend. After the front and rear lid folding is completed, the glue gun cylinder starts to act. When the glue gun reaches the specified position, it discharges glue. After the glue application is completed, the left and right lid folding cylinders act and the servo motor acts to align the carton. After the motor stops, the ear folding cylinder extends to ensure that the ears are flipped 90 degrees.

[0056] S3: The upper cover structure 3 shapes the upper cover of the large carton and assembles and fixes it with the unfolded side panels;

[0057] During this process, multiple structural parts are arranged in the upper cover structure 3 to cooperate with each other, specifically including:

[0058] Conveyor mechanism: The motor drives the chain to rotate through chain drive, and the chain drives the side panel material box to move forward through friction, thereby realizing the movement of the material box.

[0059] Loading mechanism: The X-axis module drives the slider 26 to move through synchronous belt drive, and the slider 26 drives the suction cup 11 gripper to move above the material box. The cylinder drives the gripper to move up and down to the specified position, and the vacuum generator 7 triggers vacuum suction of the top cover.

[0060] Pushing mechanism: The servo motor drives the push plate 19 through synchronous belt drive, pushes the top cover to the intermediate buffer position, and the solenoid valve drives the cylinder to retract, so that the top cover is placed in the center. After centering, the push plate 19 pushes the top cover to the specified position of the lid folding machine.

[0061] Lid folding mechanism: The solenoid valve drives the front and rear lid folding cylinders to extend. After the front and rear lid folding is completed, the glue gun cylinder starts to act. When the glue gun reaches the specified position, it discharges glue. After the glue application is completed, the left and right lid folding cylinders act and the servo motor acts to align the carton. After the motor stops, the ear folding cylinder extends to ensure that the ears are flipped 90 degrees.

[0062] Flipping mechanism: The motor drives the shaft to rotate through shaft drive, and the top cover is ensured to maintain its posture unchanged during the flipping process by the combined action of the suction cup 11 and the cylinder.

[0063] Upper cover mechanism: The X-axis module drives the slider 26 to move through shaft drive, and the slider 26 drives the suction cup 11 gripper to move above the material box. The electric cylinder drives the gripper to move up and down to the specified position, and the vacuum generator 7 triggers vacuum suction of the top cover and moves the top cover to the discharging station.

[0064] S4: Finished product on-line structure 4 transports the opened and assembled large cartons for on-line use;

[0065] In this process, multiple structural parts are arranged in the finished product on-line structure 4 to cooperate with each other, including:

[0066] Positioning mechanism: The electric roller drives the product through a multi-V belt, sends the product to the positioning position, and the solenoid valve drives the cylinder to clamp the product.

[0067] Rotation mechanism: The electric roller drives the product to the specified position through the multi-V belt. The cylinder extends and the motor drives the gear to drive the slewing support to rotate 90 degrees, then the cylinder descends to ensure that the product falls on the roller line.

[0068] On-line mechanism: The electric roller drives the product to the designated position through the multi-V belt. After the cylinder is extended, the motor drives the slider 26 where the cylinder is located to move and push the product to other stations.

[0069] In another embodiment of the present invention, preferably, a plurality of groups of bottom plates 9 are independently installed on the inner bottom of the flip frame 5, and the bottom plates 9 of one edge group are arranged in a U shape, and half of the bottom is hollow and the other half is closed.

[0070] In another embodiment provided by the present invention, the auxiliary structure includes: a fixed rod 15 fixedly inserted in the bottom of the flip side panel 10, the inner side of the bottom plate 9 is rotatably connected to the flip side panel 10 through a bearing, both ends of the fixed rod 15 are fixedly connected to a transmission rod 17, the transmission rod 17 is connected to the driving structure 6 for rotating the flip side panel 10, the transmission rod 17 is rotatably inserted in the triangular block 16 and the sleeve rod 29, the sleeve rod 29 and the triangular block 16 are fixedly installed at both ends of the inner side of the bottom plate 9, and the flip side panel 10 is transmission-connected to the resistance structure.

[0071] In another embodiment provided by the present invention, the interference structure includes a triangular block 16 and a sleeve rod 29, the triangular block 16 is arranged on both sides of the bottom of the flip side panel 10, and a interference groove 30 is opened on one side of the surface of the triangular block 16, and a interference rod 27 is connected in the interference groove 30 for sliding interference, and the interference rod 27 is fixedly installed on the end surface of the bottom block 22, and the bottom block 22 is fixedly installed on one end of the push plate 19, and the surface of the push plate 19 is spaced apart with a rotating shaft 20, and the rotating shaft 20 is connected to the bottom end of the top plate 25, and the top end of the top plate 25 is connected to one end of the folding plate 14 through a hinge, and the other end of the folding plate 14 is rotatably connected to the inner side wall of the folding groove 13, and the folding groove 13 is correspondingly opened on both sides of the flip side panel 10.

[0072] In another embodiment provided by the present invention, the other end of the push plate 19 is fixedly connected to a resistance block 23, and the end face of the resistance block 23 is connected to the inner wall of the flip side plate 10 through a reset spring 21. The resistance block 23 is slidably and resistively connected in a limit groove 31. The limit groove 31 is correspondingly opened at both ends of the bottom of the vacuum generator 7. The bottom of the vacuum generator 7 is connected to the inner wall of the flip side plate 10 through a compression spring 32. A suction cup 11 is fixedly installed on the surface of the vacuum generator 7. The suction cup 11 is telescopically installed in a through groove 12. The through groove 12 is opened at the top of the inner side of the flip side plate 10.

[0073] In another embodiment of the present invention, a slider 26 is fixedly installed at the bottom of the push plate 19 , and the slider 26 is slidably connected in the slide rail 18 , and the slide rail 18 is opened on the inner wall of the flip side plate 10 .

[0074] In another embodiment provided by the present invention, auxiliary wheels 28 are rotatably installed on both sides of the resistance rod 27. The resistance rod 27 is slidably connected in the resistance groove 30 in a disc shape. Both ends of the auxiliary wheels 28 pass through both sides of the resistance rod 27 and contact the two side walls of the resistance groove 30, thereby improving the sliding of the resistance rod 27 in the resistance groove 30.

[0075] In another embodiment provided by the present invention, a pulley 24 is rotatably mounted on the inner wall of the limiting groove 31 , and the pulley 24 is rollingly connected to the surface of the abutment block 23 .

[0076] In another embodiment provided by the present invention, the resistance block 23 is in the shape of a right-angled trapezoid, and the inclined surface of the resistance block 23 corresponds to the top side of the flip side plate 10. During the adjustment process from the flat state to the upright state, the flip frame 5 pushes the push plate 19 to slide toward the top of the flip side plate 10, and slides the resistance groove 30 from the plane position of the inclined top of the surface of the resistance block 23.

[0077] In yet another embodiment provided by the present invention, preferably, a vacuum generator 7 is fixedly installed on the top of the fixed side plate 8 .

[0078] After the box erecting mechanism in the enclosure structure 1 erects the enclosure, the erected enclosure is flipped by the flipping mechanism. In this process, the auxiliary structure is provided to provide auxiliary positioning function for the folded carton enclosure placed on the surface of the bottom plate 9 during the erection process;

[0079] After the feeding mechanism places the folded carton on the surface of the bottom plate 9, the folded carton is erected and unfolded by the box erecting mechanism. However, when the feeding mechanism places the folded carton, if the carton placed on the surface of the bottom plate 9 has a position deviation, directly using the erecting mechanism to unfold and erect the carton will cause the carton to deviate after being erected, and the trajectory setting of the erecting mechanism is generally relatively fixed. When the folded carton deflects greatly, the erecting mechanism is prone to tearing and damaging the carton due to the angle problem when erecting, so an auxiliary structure is needed to assist in straightening the deviated carton.

[0080] The flip side panel 10 also plays the following roles in the flipping process from flat to upright:

[0081] Function 1: In the process of being laid flat and erected, the flip side panel 10 can guide and straighten the folded carton that is deflected during the erection process: when the folded carton is offset in angle, as the flip side panel 10 is erected and the carton is erected, the carton that contacts the side of the bottom plate 9 is guided and straightened during this process. When the carton is offset, the carton surface that should contact the bottom plate 9 contacts the flip side panel 10. The erection of the flip side panel 10 will guide the carton downward due to the angle generated when the flip side panel 10 is turned over, and the side of the carton that should contact the bottom plate 9 contacts the surface of the bottom plate 9 for straightening.

[0082] Function 2: The setting of the flip side panel 10 can reduce the work of the vacuum generator 7 in the upper box erecting mechanism during the flattening and erecting process, and even the vacuum generator 7 is not needed to erect the carton. When the flip side panel 10 is provided, the vacuum generator 7 provided for erecting the carton only needs to erect the carton a small distance upwards, and then it can be separated from the carton. The subsequent erection of the carton can rely on the increase in the angle of the flip side panel 10 and the clamping of the fixed side panel 8 to clamp and erect the carton. The increase in the erection angle of the flip side panel 10 can also cause the carton to be squeezed by the gap between the flip side panel 10 and the fixed side panel 8 on the other side under the effect of function 1, thereby squeezing and erecting the folded carton.

[0083] Function three: When the flip side plate 10 is flipped and erected during the process of erecting the box, the flip side plate 10 itself can be adjusted to assist in straightening and positioning the carton that is deflected during the feeding process of the feeding mechanism. The specific working principle is as follows:

[0084] After the carton loading mechanism places the carton on the surface of the bottom plate 9, since when the carton is folded, generally two surfaces overlap with each other, the area of the folded carton in contact with the ground is generally two surfaces of the carton. Therefore, after the folded carton is placed on the surface of the bottom plate 9, the box standing mechanism contacts a surface above the carton through the suction cup 11 on the vacuum generator 7 and stands up the carton. While standing up, the transmission rod 17 drives the turning side plate 10 to turn and stand up synchronously with the box standing mechanism through the fixed rod 15 inserted and fixedly connected in the turning side plate 10. And the triangular blocks 16 rotatably inserted on both sides in the turning side plate 10 and fixedly arranged at both inner ends of the surface of a group of bottom plates 9 where the turning side plate 10 is installed will not rotate with the rotation of the turning side plate 10 and will be fixed on both inner sides of the turning side plate 10. At the same time, a force of contact is generated between the bottom end of the push plate 19 slidably arranged on both inner sides of the turning side plate 10 and the triangular blocks 16, thereby pushing the push plate 19 towards the top of the turning side plate 10. The contact rod 27 fixedly installed on the end face of the bottom block 22 at the bottom end of the push plate 19 is slidably connected in the contact groove 30 opened on one side of the triangular block 16 through the auxiliary wheel 28. Due to the limitation of the size of the triangular block 16 itself on the contact rod 27, the push plate 19 will be pushed forward inside the turning side plate 10 during the process of the turning side plate 10 turning from the flat state to the standing state. During the pushing process of the push plate 19, the movement of the push plate 19 is transmitted outward in two directions:

[0085] The first direction: When the push plate 19 is pushed, the bottom slides through the slider 26 in the slide rail 18 opened on the inner side wall of the turning side plate 10 and pushes the contact block 23 with a right trapezoidal shape and the hypotenuse facing outward forward. The contact block 23 slides forward in the contact groove 30 opened at both bottom ends of the vacuum generator 7, and the inclined surface of the contact block 23 slides in the contact groove 30 and gradually contacts the highest position at the top end in the contact groove 30. The pulley 24 arranged in the contact groove 30 will provide an auxiliary effect for the sliding of the contact block 23 in the contact groove 30. When the contact block 23 in the contact groove 30 switches from sliding on the inclined surface to contacting the contact groove 30 at the high point plane, the vacuum generator 7 is pushed upward due to the limitation of the size of the contact block 23 in the turning side plate 10, thereby pushing the suction cup 11 out of the through groove 12 to contact the side of the carton and fixedly clamping the carton;

[0086] Second direction: A top plate 25 is connected to the surface of the push plate 19 through a rotating shaft 20. One end of the top plate 25 is connected to the rotating shaft 20, and the other end is rotatably connected to one end of the folding plate 14 through a hinge. The other end of the folding plate 14 is also connected to the inner side wall of the folding groove 13 through a hinge. Therefore, while the push plate 19 is pushed towards the top, the bottom end of the top plate 25 will move forward along with the displacement of the push plate 19 itself. Thus, the top plate 25 is gradually pushed from an inclined state to a vertical state with the folding plate 14. During this process, due to its own size, the top plate 25 will push the folding plate 14 out of the folding groove 13, so as to squeeze, straighten and clamp the gradually erected carton. At the same time, it cooperates with the vacuum generator 7 and the suction cup 11 ejected in the first direction to fix the outside of the carton. Since the ejected vacuum generator 7 and the suction cup 11 will pop out from the flipping side plate 10 and have a certain distance from the inner side of the flipping side plate 10, during the flipping process, the folding plate 14 protruding outwards from the inner side of the flipping side plate 10 contacts the surface of the carton instead of the inner side of the flipping side plate 10, providing the function of clamping and fixing.

[0087] After the carton is erected, the erected carton is flipped to the next step for installing the bottom cover and the top cover by the flipping mechanism cooperating with the clamping mechanism under the action of the driving structure. And at this time, after the flipping mechanism flips the flipping frame back to its original position, and during the flipping and resetting process, the flipping side plate is also reset and flattened along with the flipping of the transmission rod. During this process, the push plate is reset under the action of the reset spring, folding the folding plate back into the folding groove. At the same time, the suction cup and the vacuum generator arranged on the inner side of the flipping side plate are reset and contracted back into the through groove under the action of the compression spring for the next carton to be erected and used.

[0088] Only some exemplary embodiments of the present invention are described in an illustrative manner above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. Large carton unpacking machine, including: The enclosure structure (1), the ground cover structure (2), the upper cover structure (3) and the finished product upper line structure (4) are characterized by further comprising: The turning frame (5) is rotatably installed in the enclosure structure (1) through the driving structure (6) to stand up and turn over the large carton; The fixed side plate (8) and the flip side plate (10) are installed on both sides of the flip frame (5) in a bilaterally symmetrical manner; The auxiliary structure is rotatably mounted on one side of the flip frame (5). When the flip side plate (10) flips from a flat state to an upright state, the flip side plate (10) straightens a large cardboard box placed on the surface and deflected at an angle, and at the same time, assists in clamping and fixing the large cardboard box during the flipping process of the flip frame (5).

2. The large carton opening machine according to claim 1, characterized in that: A plurality of bottom plates (9) are independently installed on the inner bottom of the flip frame (5), and a group of bottom plates (9) at the edge are arranged in a U shape, with half of the bottom being in a cavity shape and the other half being in a closed shape.

3. The large carton opening machine according to claim 2, characterized in that: The auxiliary structure comprises: a fixed rod (15) fixedly inserted in the bottom of the flip side plate (10); the inner side of the bottom plate (9) is rotatably connected to the flip side plate (10) via a bearing; two ends of the fixed rod (15) are fixedly connected to a transmission rod (17); the transmission rod (17) is connected to a driving structure (6) to rotate the flip side plate (10); the transmission rod (17) is rotatably inserted in a triangular block (16) and a sleeve rod (29); the sleeve rod (29) and the triangular block (16) are fixedly mounted at two ends of the inner side of the bottom plate (9); and the flip side plate (10) is transmission-connected to the abutment structure.

4. The large carton opening machine according to claim 3, characterized in that: The abutment structure comprises a triangular block (16) and a sleeve rod (29). The triangular block (16) is arranged on both sides of the bottom of the flip side plate (10). A resistance groove (30) is provided on one side of the surface of the triangular block (16). A resistance rod (27) is connected in a sliding manner in the resistance groove (30). The resistance rod (27) is fixedly mounted on the end surface of the bottom block (22). The bottom block (22) is fixedly mounted on one end of the push plate (19). A rotating shaft (20) is arranged on the surface of the push plate (19) at intervals. The rotating shaft (20) is connected to the bottom end of the top plate (25). The top end of the top plate (25) is connected to one end of the folding plate (14) through a hinge. The other end of the folding plate (14) is rotatably connected to the inner side wall of the folding groove (13). The folding groove (13) is correspondingly arranged on both sides of the flip side plate (10).

5. The large carton opening machine according to claim 4, characterized in that: The other end of the push plate (19) is fixedly connected with a resistance block (23), the end surface of the resistance block (23) is connected to the inner wall of the flip side plate (10) through a reset spring (21), the resistance block (23) is slidably and resistively connected in a limiting groove (31), the limiting groove (31) is correspondingly opened at the two ends of the bottom of the vacuum generator (7), the bottom of the vacuum generator (7) is connected to the inner wall of the flip side plate (10) through a compression spring (32), a suction cup (11) is fixedly installed on the surface of the vacuum generator (7), the suction cup (11) is telescopically installed in a through groove (12), and the through groove (12) is opened at the inner top of the flip side plate (10).

6. The large carton opening machine according to claim 5, characterized in that: A slider (26) is fixedly mounted on the bottom of the push plate (19), and the slider (26) is slidably connected in a slide rail (18), and the slide rail (18) is arranged on the inner wall of the flip side plate (10).

7. The large carton opening machine according to claim 6, characterized in that: Auxiliary wheels (28) are rotatably mounted on both sides of the resistance rod (27). The resistance rod (27) is disc-shaped and slidably connected in the resistance groove (30). Two ends of the auxiliary wheels (28) penetrate through both sides of the resistance rod (27) and contact the two side walls of the resistance groove (30), thereby improving the sliding of the resistance rod (27) in the resistance groove (30).

8. The large carton opening machine according to claim 7, characterized in that: A pulley (24) is rotatably mounted on the inner side wall of the limiting groove (31), and the pulley (24) is rollingly connected to the surface of the abutment block (23).

9. The large carton opening machine according to claim 8, characterized in that: The abutment block (23) is in the shape of a right-angled trapezoid, and the inclined surface of the abutment block (23) corresponds to one side of the top end of the flip side plate (10). The flip frame (5) pushes the push plate (19) to slide toward the top end of the flip side plate (10) during the adjustment process from the flat state to the upright state, and slides the abutment groove (30) from the plane position of the inclined top end of the surface of the abutment block (23).

10. The large carton opening machine according to claim 9, characterized in that: A vacuum generator (7) is fixedly mounted on the top of the fixed side plate (8).

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