Large carton opening machine

Abstract

The present invention discloses a carton opening machine for large cartons, which relates to the technical field of carton opening machines, including a panel structure, a ground cover structure, an upper cover structure, a finished product loading line structure, and is further provided with a flip frame, a fixed side panel, a flip side panel, and an auxiliary structure. The flip frame is driven to rotate by a driving structure within the panel structure, so that the large carton can be erected and flipped. The auxiliary structure is installed on one side of the flip frame, and when the flip side panel flips, it can straighten the large carton with an angled deflection, and assist in clamping and fixing the carton during the flipping process of the flip frame. There are multiple groups of bottom plates at the bottom inner side of the flip frame, and one group of edges is U-shaped. The auxiliary structure cooperates with the interference structure to realize operations such as straightening and clamping of the carton. The various structures of the carton opening machine work in coordination, which can effectively solve the problems of easy deviation of the carton and difficulty in standing the carton during the unpacking of large cartons, thereby improving the unpacking efficiency and packaging quality.

Description

Technical Field

[0001] The present invention relates to a carton opening machine technology, in particular to a large carton opening machine. Background Art

[0002] As is known to all, in the packaging industry, unpacking large cartons is an important part of the product packaging process. Existing carton unpacking machines are widely used in packaging production lines for various products to open and assemble folded large cartons to meet product packing needs.

[0003] The shortcomings of the existing technology are that, on the one hand, some carton openers lack an effective straightening and positioning mechanism for large cartons that are placed on the equipment and have angled or positional deviations when processing large cartons. When the carton is offset, subsequent carton erection and unpacking operations are prone to problems. For example, the position of the carton after erection is inaccurate, which affects the subsequent assembly of the ground cover and top cover, and reduces production efficiency and packaging quality. On the other hand, during the carton erection process, there is a high degree of dependence on components such as the vacuum generator. If you rely solely on the vacuum generator to erect the carton, not only will the energy consumption of the equipment increase, but when the carton 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 carton, resulting in failure to erect the carton or even damage to the carton. Summary of the Invention

[0004] The purpose of the present invention is to provide a large carton opening machine to solve the above-mentioned shortcomings in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: including: a panel structure, a ground cover structure, an upper cover structure and a finished product line structure, and also including:

[0006] The turning frame is installed in the enclosure structure through the rotation of the driving structure to stand up and turn over the large cartons;

[0007] The fixed side panels and the flip side panels are installed on both sides of the flip frame in a bilaterally symmetrical manner;

[0008] The auxiliary structure is rotatably mounted on one side of the flip frame. When the flip side plate flips from a flat state to an upright state, the flip side plate straightens the large cardboard box placed on the surface with an angle deflection, and at the same time assists in clamping and fixing the large cardboard box during the flipping process of the flip frame.

[0009] As a further description of the above technical solution: multiple groups of bottom plates are independently installed on the inner bottom of the flip frame, and the bottom plates of one group at the edge are arranged in a U shape, with half of the bottom being hollow and the other half being 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 through a bearing, both ends of the fixed rod are fixedly connected to the transmission rod, the transmission rod is connected to the driving structure to drive the flip side panel to rotate, 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 interference 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 of the flip side panel, a interference groove is opened on one side of the surface of the triangular block, and 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, and the surface of the push plate is provided with rotating shafts at intervals, 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, and 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 panel.

[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 both 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 slider is fixedly installed at the bottom of the push plate, and the slider is slidably connected in a slide rail, and the slide rail is opened on the inner side 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 interference rod, and the interference rod is disc-shaped and slidably connected in the interference groove. Both ends of the auxiliary wheels pass through both sides of the interference rod and contact the two side walls of the interference groove, thereby improving the stability of the interference rod sliding in the interference 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 interference block is in the shape of a right-angled trapezoid, and the inclined surface of the interference block corresponds to the top side of the flip side panel. During the adjustment process from the flat state to the upright state, the flip frame pushes the push plate to slide toward the top of the flip side panel, and slides the plane position of the inclined top of the interference block to the position of the limit groove.

[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 panel.

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

[0019] 1. Righting and positioning: The auxiliary structure and the flip side panel work together to right a large carton that has been placed at an angle when the flip side panel is flipped from a flat position to an upright position, ensuring the correct position of the large carton during the standing process, avoiding subsequent assembly difficulties caused by carton offset, and improving the accuracy and stability of unpacking.

[0020] 2. Reduced Vacuum Dependence: The flip side panels reduce the workload of the vacuum generator in the upper carton erection mechanism during both the flattening and erecting processes, and in some cases, even eliminate the need for a vacuum generator. The upper vacuum generator only needs to lift the carton a short distance and then separate. The carton is then clamped and erected by the flip side panels in conjunction with the fixed side panels, reducing reliance on the vacuum generator and improving the adaptability of the equipment.

[0021] 3. Auxiliary clamping and fixing: During the process of flipping and erecting the side panels, the suction cup of the vacuum generator extends to contact the side of the carton through a series of actions of the resistance structure. At the same time, the folding plate is ejected 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, 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 launch structure, cooperate with each other. From the deployment 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 following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described 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 4A schematic structural diagram of a fixed side plate provided in an embodiment of the present invention;

[0028] Figure 5 A schematic structural diagram of a flip side panel provided in an embodiment of the present invention;

[0029] Figure 6 A schematic structural diagram of a base plate provided in an embodiment of the present invention;

[0030] Figure 7 A schematic structural diagram of a push plate provided in an embodiment of the present invention;

[0031] Figure 8 A schematic structural diagram of a triangular block provided in an embodiment of the present invention;

[0032] Figure 9 The embodiment of the present invention provides Figure 7 Enlarged view of point B in the middle;

[0033] Figure 10 A schematic structural diagram of a vacuum generator provided in an embodiment of the present invention;

[0034] Figure 11 A schematic structural diagram of a limiting groove provided in an embodiment of the present invention.

[0035] Description of reference numerals:

[0036] 1-enclosure structure; 2-ground cover structure; 3-upper cover structure; 4-finished product line structure; 5-flip frame; 6-drive structure; 7-vacuum generator; 8-fixed side panel; 9-bottom panel; 10-flip side panel; 11-suction cup; 12-through slot; 13-folding slot; 14-folding plate; 15-fixed rod; 16-triangular block; 17-transmission rod; 18-slide rail; 19-push plate; 20-rotating shaft; 21-reset spring; 22-bottom block; 23-resistance block; 24-pulley; 25-top panel; 26-slider; 27-resistance rod; 28-auxiliary wheel; 29-sleeve rod; 30-resistance slot; 31-limiting slot; 32-compression spring. DETAILED DESCRIPTION

[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 described in detail below with reference to the accompanying drawings.

[0038] See also Figures 1-11 The embodiment of the present invention provides a technical solution for a large carton opening machine, which includes a panel structure 1, a ground cover structure 2, an upper cover structure 3, and a finished product loading line structure 4, and further includes:

[0039] The turning frame 5 is rotated by the driving structure 6 and installed in the enclosure structure 1 to stand up and turn over the large carton;

[0040] The fixed side panels 8 and the flip side panels 10 are installed on both sides of the flip frame 5 in a bilaterally symmetrical manner;

[0041] The auxiliary structure is rotatably mounted on one side of the flip frame 5. When the flip side panel 10 flips from a flat state to an upright state, the flip side panel 10 straightens the large cardboard box placed on the surface with an angle deflection, and at the same time assists in clamping and fixing the large cardboard box during the flipping process of the flip frame 5.

[0042] The specific steps for unpacking a large carton are as follows:

[0043] S1, the panel structure 1 unfolds the panels folded around the large carton;

[0044] During this process, multiple structural parts are provided in the enclosure structure 1 to cooperate with each other, and the specific multiple structural parts include:

[0045] Conveying mechanism: The motor drives the chain to rotate through the chain transmission, and the chain drives the enclosure material frame to move through the friction force, thereby realizing the movement of the material frame.

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

[0047] Cache mechanism: The electric roller drives the driven roller through a multi-V belt, and the roller drives the enclosure to move forward and backward through friction, thereby realizing the movement of the enclosure.

[0048] Box erection mechanism: The Z-axis electric cylinder drives the suction cup 11 gripper to move up and down through the shaft transmission. When it drops to the specified position, the vacuum generator 7 triggers the vacuum to suck the enclosure. At the same time, the X-axis module and the Z-axis electric cylinder coordinate the curve movement to transform the enclosure from a flat position to an upright position.

[0049] Flipping mechanism: The motor drives the shaft to rotate through the shaft transmission, and the enclosure is jointly acted upon by the suction cup 11 and the cylinder to ensure that the enclosure is placed upright during the flipping process.

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

[0051] S2: Floor cover structure 2 is used to characterize the floor cover of the large carton and assemble and fix it with the unfolded enclosure;

[0052] During this process, multiple structural parts are provided in the ground cover structure 2 to cooperate with each other, including:

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

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

[0055] Folding mechanism: A solenoid valve drives the front and rear folding cylinders to extend. Once folding is complete, the glue gun cylinder begins to operate, dispensing glue when the glue gun reaches the designated position. After gluing is complete, the left and right folding cylinders activate, and the servo motors operate to center the carton. After the motors stop, the ear folding cylinders extend to ensure a 90-degree flip.

[0056] S3: The upper cover structure 3 is used to determine the upper cover of the large carton and assemble and fix it with the unfolded panels;

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

[0058] Conveying mechanism: The motor drives the chain to rotate through the chain transmission, and the chain drives the enclosure material frame to move through the friction force, thereby realizing the movement of the material frame.

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

[0060] Pushing mechanism: The servo motor drives the push plate 19 through the synchronous belt transmission to push the canopy to the middle buffer position. The solenoid valve drives the cylinder to retract to center the canopy. After centering, the push plate 19 pushes the canopy to the specified position of the folding machine.

[0061] Folding mechanism: A solenoid valve drives the front and rear folding cylinders to extend. Once folding is complete, the glue gun cylinder begins to operate, dispensing glue when the glue gun reaches the designated position. After gluing is complete, the left and right folding cylinders activate, and the servo motors operate to center the carton. After the motors stop, the ear folding cylinders extend to ensure a 90-degree flip.

[0062] Flipping mechanism: The motor drives the shaft to rotate through the shaft transmission, and the canopy is controlled by the suction cup 11 and the cylinder to ensure that the canopy posture remains unchanged during the flipping process.

[0063] Lid-lifting mechanism: The X-axis module drives the slider 26 through the shaft drive, which drives the suction cup 11 gripper to move above the material frame. The electric cylinder drives the gripper down to the designated position, and the vacuum generator 7 triggers the vacuum to suck up the lid and move it to the unloading station.

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

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

[0066] Positioning mechanism: The electric roller drives the product through a multi-V belt, and sends the product to the positioning position. 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] Online 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 provided by the present invention, preferably, a plurality 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, with half of the bottom being hollow and the other half being 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, the two ends of the fixed rod 15 are fixedly connected to the transmission rod 17, the transmission rod 17 is connected to the driving structure 6 to drive the flip side panel 10 to rotate, 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 interference 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 inner 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 a sliding interference manner in the interference groove 30, and the interference rod 27 is fixedly installed on the end face 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 provided with a rotating shaft 20 at intervals, 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 resisted and connected in the 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 the through groove 12. The through groove 12 is opened at the top inner side of the flip side plate 10.

[0073] In another embodiment of the present invention, a slider 26 is fixedly installed on 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 disc-shaped and slidingly connected to the resistance groove 30. 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 stability of the resistance rod 27 sliding 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 panel 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 panel 10, and slides the plane position of the inclined top of the resistance block 23 to the position of the limit groove 31.

[0077] In 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 erection mechanism in the enclosure structure 1 erects the enclosure, the erected enclosure is flipped over by the flipping mechanism. During this process, the auxiliary structure provides 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 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 likely to tear and damage the carton due to the angle problem when erecting it. Therefore, 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 process of flipping 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 has been deflected during the erection process: when the folded carton is offset at an angle, as the flip side panel 10 is erected and the carton is erected, the carton that is in contact with the bottom plate 9 is guided and straightened. When the carton is offset, the carton surface that should have been in contact with the bottom plate 9 contacts the flip side panel 10. Then, 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 flipped, and the side of the carton that should have been in contact with 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 eliminate the need for the vacuum generator 7 to erect the carton. When the flip side panel 10 is provided, the vacuum generator 7 provided above for erecting the carton only needs to erect the carton a small distance, and then separate 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 angle of the flip side plate 10 itself can be adjusted to assist in straightening and positioning the carton that has angled deflection during the loading process of the feeding mechanism. The specific working principle is as follows:

[0084] After the feeding mechanism places the carton on the surface of the bottom plate 9, since the carton generally overlaps with two surfaces when folding, the area of ​​the folded carton that contacts the ground is generally the two surfaces of the carton. Therefore, after the folded carton is placed on the surface of the bottom plate 9, the box erecting mechanism contacts one surface above the carton through the suction cup 11 on the vacuum generator 7, and then stands up the carton. At the same time, the transmission rod 17 is inserted into the flip side plate 10 and fixedly connected to the fixed rod 15 to turn the flip side plate 10 up synchronously with the box erecting mechanism. The inner ends of the surface of a group of bottom plates 9 on which the flip side plates 10 are installed are fixed by the sleeve rod 29 and the triangular blocks 16 on both sides of the flip side plate 10 are not rotated. As the flip side panel 10 rotates, it will be fixed on both sides of the inside of the flip side panel 10, and at the same time, a force of resistance will be generated between the bottom ends of the push plates 19 slidingly arranged on both sides of the flip side panel 10 and the triangular blocks 16, thereby pushing the push plate 19 toward the top of the flip side panel 10. The resistance rod 27 fixedly installed on the end surface of the bottom block 22 at the bottom end of the push plate 19 is slidably connected to the resistance groove 30 opened on one side of the triangular block 16 through the auxiliary wheel 28. Due to the limitation of the resistance rod 27 by the size of the triangular block 16 itself, the push plate 19 will be pushed forward inside the flip side panel 10 during the process of flipping the flip side panel 10 from a flat state to an upright 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 is slidably connected to the slide rail 18 opened on the inner wall of the flip side plate 10 through the slider 26, and the resistance block 23 with a right-angled trapezoidal shape and the oblique side facing outward is pushed forward, and the resistance block 23 slides forward in the limiting grooves 31 opened at both ends of the bottom of the vacuum generator 7, and the inclined surface of the resistance block 23 slides in the limiting groove 31 and gradually contacts the highest position of the top with the limiting groove 31. The pulley 24 provided in the limiting groove 31 will provide an auxiliary effect for the sliding of the resistance block 23 in the limiting groove 31. When the resistance block 23 in the limiting groove 31 switches from sliding on the inclined surface to contacting the limiting groove 31 at the highest point, the vacuum generator 7 is limited by the size of the resistance block 23 in the flip side plate 10 and is pushed upward, thereby pushing the suction cup 11 out of the through groove 12 to contact the side of the carton, thereby fixing and clamping the carton;

[0086] The second direction: the surface of the push plate 19 is connected to the top plate 25 through the rotating shaft 20. One end of the top plate 25 is connected to the rotating shaft 20 and the other end is 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 wall of the folding groove 13 through a hinge. Therefore, when the push plate 19 is pushed to the top, the push plate 19 will move the bottom end of the top plate 25 forward with its own displacement, thereby gradually pushing the top plate 25 from the inclined state to the vertical state between the folding plate 14. In this process, the top plate 25 will be The folding plate 14 is pushed outward from the folding groove 13, thereby squeezing, straightening and clamping the gradually standing carton, and at the same time cooperating with the vacuum generator 7 and the suction cup 11 that pop out in the first direction to fix the outside of the carton. Since the vacuum generator 7 and the suction cup 11 pop out from the flip side panel 10 and there is a certain distance between them and the inner side of the flip side panel 10, during the flipping process, the folding plate 14 protruding outward from the inner side of the flip side panel 10 replaces the inner side of the flip side panel 10 to contact the carton surface, providing a clamping and fixing effect.

[0087] After the carton is erected, the turned carton is turned over by the turning mechanism in cooperation with the clamping mechanism under the action of the driving structure to the next step for installation of the ground cover and the upper cover. At this time, the turning mechanism turns the turning frame over and resets it, and during the turning and resetting process, the turning side plate is also reset and flattened as the transmission rod turns over. In this process, the push plate is reset under the action of the reset spring, and the folding plate is folded back into the folding groove. At the same time, the suction cup and vacuum generator arranged on the inner side of the turning side plate are retracted into the through groove under the action of the compression spring for use in the standing of the next carton.

[0088] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

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 in that they further include: The turning frame (5) is rotatably mounted in the enclosure structure (1) through the driving structure (6) to stand up and turn over the large cardboard box; the fixed side panels (8) and the turning side panels (10) are symmetrically mounted on both sides of the turning frame (5); the auxiliary structure is rotatably mounted on one side of the turning frame (5); when the turning side panels (10) turn from a flat state to an upright state, the turning side panels (10) straighten the large cardboard box placed on the surface with an angled deflection, and at the same time, assist in clamping and fixing the large cardboard box during the turning process of the turning frame (5); A plurality of bottom plates (9) are independently installed on the inner bottom of the flip frame (5), and the bottom plates (9) of one group at the edge are arranged in a U-shape, with half of the bottom being hollow and the other half being closed; The auxiliary structure comprises: a fixed rod (15) fixedly inserted into 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; both 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 drive the flip side plate (10) to rotate; the transmission rod (17) is rotatably inserted into a triangular block (16) and a sleeve rod (29); the sleeve rod (29) and the triangular block (16) are fixedly mounted at both ends of the inner side of the bottom plate (9); and the flip side plate (10) is transmission-connected to the interference structure; The interference structure includes a triangular block (16) and a sleeve rod (29), wherein the triangular block (16) is arranged on both sides of the bottom of the flip side plate (10), and a interference groove (30) is provided on one side of the surface of the triangular block (16), and a interference rod (27) is connected in a sliding manner in the interference groove (30), 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). A rotating shaft (20) is provided on the surface of the push plate (19), and 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, 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 plate (10); 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 return spring (21). The resistance block (23) is slidably and resistively connected in a limiting groove (31). The limiting 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 inner side of the flip side plate (10).

2. The large carton opening machine according to claim 1, 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 the slide rail (18), and the slide rail (18) is opened on the inner side wall of the flip side plate (10).

3. The large carton opening machine according to claim 2, 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 to the resistance groove (30). 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 stability of the resistance rod (27) in the resistance groove (30).

4. The large carton opening machine according to claim 3, 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).

5. The large carton opening machine according to claim 4, 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 plane position of the inclined top of the abutment block (23) to the position of the limiting groove (31).

6. The large carton opening machine according to claim 5, characterized in that: A vacuum generator (7) is fixedly mounted on the top of the fixed side plate (8).

Images