Packaging carton opening structure

Abstract

The invention provides a packaging carton box opening structure, and belongs to the field of packaging mechanical equipment, the packaging carton box opening structure comprises a carton box storage warehouse, one side of the carton box storage warehouse is provided with a carton box opening assembly used for taking out a carton box from the carton box storage warehouse and opening the carton box, and the carton box storage warehouse comprises a carton box storage table; the box storage table is provided with a box placing station, a box taking station and a conveying assembly for conveying the cartons from the box placing station to the box taking station, box placing and box taking are separated in position through the box storage warehouse, and the box opening assembly can supplement the cartons at the box placing station in the box taking process; and after the cartons at the carton taking station are consumed, the cartons at the carton placing station are conveyed to the carton taking station through the conveying assembly, so that the cartons are quickly supplemented, the conflict between carton placing and carton taking is avoided, continuous carton taking and packaging can be realized, and the production efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the field of packaging machinery and equipment, and in particular relates to a packaging carton opening structure. Background Art

[0002] The carton automatic packaging production line is an important equipment in the modern packaging industry. It integrates automation and intelligent technology, greatly improving packaging efficiency and accuracy. The production line usually consists of multiple links such as cardboard feeding, forming, pasting, unpacking, filling, sealing and labeling. Each link is seamlessly connected through advanced sensors and control systems. In the production process, after the cardboard is accurately cut and formed, it is automatically sent to the packaging station. The unpacking structure opens the formed carton, and the product is accurately placed in the carton. Then it is automatically sealed and labeled. The whole process does not require excessive human intervention, which greatly saves labor costs.

[0003] The time spent on cutting and forming cartons is longer than that spent on packaging, so the efficiency of the entire production line depends on the cutting and forming part. In order to improve production efficiency, cutting and forming are usually separated from product packaging. The cut and formed cartons are placed in the carton storage warehouse, and the unpacking component then takes the cartons out of the carton storage warehouse for unpacking and packaging, forming a production line structure with multiple groups of cutting and forming parts and one group of packaging parts.

[0004] However, the current carton storage warehouse cannot realize continuous feeding of unpacking components. When the cartons in the carton storage warehouse are used up, it is necessary to stop and reload or replace the carton storage warehouse before packaging operations can be carried out again. The degree of automation is still insufficient, which restricts the improvement of efficiency. Summary of the invention

[0005] Based on the above-mentioned problems in the prior art, the present invention provides a packaging carton opening structure, including a carton storage warehouse, one side of which is provided with an opening component for taking out cartons from the carton storage warehouse and opening the carton, the carton storage warehouse includes a carton storage table, the carton storage table is provided with a carton placing station, a carton taking station and a conveying component for conveying the carton from the carton placing station to the carton taking station.

[0006] Among them, the conveying assembly includes a plurality of conveying rollers rotatably installed on the box storage table, and a conveyor belt is sleeved on the conveying rollers. One of the conveying rollers is connected to the conveying motor and the conveyor belt is driven by the conveying motor to rotate. A gantry is fixedly installed on the box storage table at the middle of the corresponding conveyor belt, and a blocking plate is installed on the gantry to slide up and down. The blocking plate divides the box storage table into two parts and serves as a box placing station and a box taking station respectively. When the blocking plate slides to the bottom, it blocks the carton from being transported from the box placing station to the box taking station. A blocking cylinder driving the blocking plate to slide up and down is also fixedly installed on the gantry.

[0007] Among them, the unpacking component includes an unpacking platform and a robotic arm, and a negative pressure suction cup for adsorbing cartons is installed on the unpacking platform. The end actuator of the robotic arm includes a first box grabbing plate, and a second box grabbing plate is hingedly installed on the top of the first box grabbing plate. A box grabbing cylinder is rotatably installed on the back side of the first box grabbing plate, and an obtuse-angle frame is extended upward and rotatably installed on the telescopic end of the box grabbing cylinder. One side of the obtuse-angle frame is rotatably connected to the telescopic end of the box grabbing cylinder, and the other side of the obtuse-angle frame is fixedly connected to the back side of the second box grabbing plate. The telescopic movement of the box grabbing cylinder drives the second box grabbing plate to rotate relative to the first box grabbing plate, and negative pressure suction cups are arranged on the front sides of the first box grabbing plate and the second box grabbing plate.

[0008] Wherein, the first box grabbing plate and the second box grabbing plate are both provided with a plurality of negative pressure suction cups, and the negative pressure suction cups on the first box grabbing plate and the second box grabbing plate are arranged in a rectangular array.

[0009] Among them, the unpacking table is equipped with several groups of lifting components evenly arranged under the table top, the lifting components include a lifting cylinder fixedly installed to the unpacking table, the telescopic end of the lifting cylinder is telescopic upward and fixedly installed with a cross bar, and a plurality of negative pressure suction cups are evenly fixedly installed on the cross bar, and the arrangement direction of the lifting components is perpendicular to the arrangement direction of the negative pressure suction cups.

[0010] Among them, the table top of the unpacking table is an up and down inclined table top, the lifting component is installed on the lower side of the table top and the arrangement direction is parallel to the inclined table top, and limit baffles are fixedly installed on the lower side of the table top and one of the inclined sides; the unpacking table is fixedly installed with a positioning slide rail on the lower side of the table top, and a straightening rod for moving the carton is slidably installed on the positioning slide rail, and a straightening motor for driving the straightening rod to slide is also fixedly installed on the unpacking table.

[0011] Among them, two gears are installed rotatably on the unpacking table, one of which is fixedly connected to the rotating shaft of the squaring motor, and the same toothed belt is meshed and installed on the two gears, and the squaring rod is fixedly connected to the toothed belt.

[0012] The present invention has the beneficial effects that the box storage warehouse separates the positions of box placing and box taking, and cartons can be replenished at the box placing station while the box unpacking component is taking boxes. After the cartons at the box taking station are consumed, the cartons at the box placing station are sent to the box taking station by the conveying component, and the cartons are replenished quickly, thus avoiding the conflict between box placing and box taking, realizing continuous box taking and packaging, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural diagram of the unpacking structure of a packaging carton.

[0014] Figure 2 It is a three-dimensional structural diagram of the unpacking structure of a packaging carton from another angle.

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the storage warehouse.

[0016] Figure 4 It is a three-dimensional structural diagram of the unpacking table.

[0017] Figure 5 yes Figure 4 Enlarged view of point A.

[0018] Figure 6 It is a structural diagram of the lifting component.

[0019] Figure 7 It is a schematic diagram of the three-dimensional structure of the robotic arm.

[0020] Figure 8 yes Figure 7 Enlarged view of point B.

[0021] Fig. 9 This is a schematic diagram of the three-dimensional structure of the robotic arm from another angle. DETAILED DESCRIPTION

[0022] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] As attached Figure 1-9 The unpacking structure of a packaging carton 30 shown in the figure comprises a carton storage 1, one side of the carton storage 1 is provided with an unpacking component 2 for taking out the carton 30 from the carton storage 1 and opening the carton 30, the carton storage 1 comprises a carton storage table 3, the carton storage table 3 is provided with a carton placing station 4, a carton taking station 5 and a conveying component 6 for conveying the carton 30 from the carton placing station 4 to the carton taking station 5, the conveying component 6 comprises a plurality of conveying rollers 7 rotatably mounted on the carton storage table 3, the extending direction of the conveying rollers 7 is perpendicular to the conveying direction, a conveying belt 8 is sleeved and mounted on the conveying rollers 7, one of the conveying rollers 7 is used as an active roller, and the other conveying rollers 7 are used as driven rollers, the driven rollers are connected to the active rollers through the conveying belt 8, and the active rollers are connected to the conveying rollers through the cooperation of the belt and the pulley. The conveying motor 9 drives the conveyor belt 8 to rotate. A gantry 10 is fixedly installed at the middle of the corresponding conveyor belt 8 on the box storage platform 3, which crosses the conveyor belt 8 from the width direction. Slide rails are fixedly installed on both sides of the gantry 10. The gantry 10 is installed with a blocking plate 11 that slides up and down through the cooperation of the slide rails and the sliders. The blocking plate 11 divides the box storage platform 3 into two parts and serves as a box placing station 4 and a box taking station 5 respectively. When the blocking plate 11 slides to the bottom, it blocks the carton 30 from being transported from the box placing station 4 to the box taking station 5, which can avoid misoperation to a certain extent. A blocking cylinder 12 is fixedly installed on the top of the gantry 10. The telescopic end of the blocking cylinder 12 extends downward and is fixedly connected to the blocking plate 11, and the blocking plate 11 is driven to slide up and down by telescoping.

[0024] The unpacking component 2 includes an unpacking table 13 and a four-axis robot arm 14. The table top 15 of the unpacking table 13 is an up-and-down inclined table top 15. The unpacking table 13 is evenly spaced and installed with three groups of lifting components 16 below the lower side of the table top 15. The arrangement direction of the three groups of lifting components 16 is parallel to the inclined table top 15. The lifting component 16 includes two lifting cylinders 17 fixedly installed on the unpacking table 13. The telescopic ends of the two lifting cylinders 17 are both telescoped upward and fixedly installed with the same cross bar 18. The two lifting cylinders 17 are respectively located at the two ends of the cross bar. Twelve negative pressure suction cups 19 are evenly fixedly installed on the cross bar 18. The arrangement direction of the three groups of lifting components 16 is perpendicular to the arrangement direction of the negative pressure suction cups 19. A limit baffle 20 is fixedly installed on the lower side and one of the oblique sides of 15, and a positioning slide rail 21 is fixedly installed on the lower side of the unpacking table 13, and a straightening rod 22 for moving the carton 30 is slidably installed on the positioning slide rail 21. A straightening motor 23 and two gears 24 are also fixedly installed on the unpacking table 13, one of the gears 24 is fixedly connected to the rotating shaft of the straightening motor 23, and the same toothed belt 25 is meshedly installed on the two gears 24, and the straightening rod 22 is fixedly connected to the toothed belt 25. The initial position of the straightening rod 22 is located on the side of the oblique side of the unpacking table 13 where the limit baffle 20 is not set, and the straightening rod 22 is driven by the straightening motor 23 to slide to the other side. The robot arm 14 adopts a conventional four-axis robot arm body with a specially designed end effector, and the end effector includes a first box grabbing plate 26, and the top of the first box grabbing plate 26 is hingedly installed with a second box grabbing plate 27 through two hinges. The back of the first box grabbing plate 26 is rotatably installed with two box grabbing cylinders 28, and the telescopic end of the box grabbing cylinder 28 extends upward and is rotatably installed with an obtuse frame 29, one side of the obtuse frame 29 is rotatably connected to the telescopic end of the box grabbing cylinder 28, and the other side of the obtuse frame 29 is fixedly connected to the back of the second box grabbing plate 27, and the box grabbing cylinder 28 is rotatably installed. The second box grabbing plate 27 is telescopically driven to rotate relative to the first box grabbing plate 26, and the rotation range is 90°, from the first box grabbing plate 26 and the second box grabbing plate 27 being in the same plane to being perpendicular to each other. A plurality of negative pressure suction cups 19 are arranged on the front of the first box grabbing plate 26 and the second box grabbing plate 27, and the negative pressure suction cups 19 on the first box grabbing plate 26 and the second box grabbing plate 27 are arranged in a rectangular array, and the negative pressure suction cups 19 on the robot arm 14 and the negative pressure suction cups 19 on the box opening platform 13 are connected to an external negative pressure pump through a ventilation pipe, thereby realizing negative pressure adsorption.

[0025] The unpacking structure provided in this embodiment is a part of the automatic packaging production line of cartons 30. The cartons 30 after cutting and forming are transported to the box placing station 4 of the box storage table 3 through an external conveying structure and stacked at the box placing station 4, or stacked at other places and the stacked cartons 30 are placed at the box placing station 4. The conveying motor 9 is started and drives the conveyor belt 8 to send the cartons 30 on the box placing station 4 to the box taking station 5. At this time, the blocking cylinder 12 starts to drive the blocking plate 11 to slide downward and separate the box placing station 4 and the box taking station 5, and then the robot arm 14 drives the end effector to move to the carton 30 at the box taking station 5, and the negative pressure suction cup 19 of the first box grabbing plate 26 adsorbs the carton 30, and then the robot arm 14 drives the carton 30 to the top of the unpacking table 13 through the first box grabbing plate 26 and stops the adsorption of the negative pressure suction cup 19 of the first box grabbing plate 26. The carton 30 falls onto the unpacking table 13 and automatically slides downward along the table top 15 of the unpacking table 13 under the action of gravity until it contacts the limit baffle 20 on the lower side of the table top 15. Then the alignment motor 23 starts and drives the alignment rod 22 to slide. The sliding of the alignment rod 22 pushes the carton 30 to contact the limit baffle 20 on the oblique side of the table 15 and align it. Then the lifting cylinder 17 starts to drive the crossbar 18 and the negative pressure suction cup 19 on the crossbar 18 to rise and absorb the bottom of the carton 30 through the negative pressure suction cup 19. The robot arm 14 then drives the end effector to move to the carton 30 on the unpacking table 13 and absorb the carton 30 through the negative pressure suction cup 19 of the first grabbing plate 26. Then the robot arm 14 drives the end effector to pull back and pull the carton 30 open. The grabbing cylinder 28 starts and rotates the second grabbing plate 27 and absorbs the other side of the carton 30 through the negative pressure suction cup 19, so that the carton 30 remains in an open state. At this time, the unpacking of the carton 30 is completed. The robot arm 14 can move the opened carton 30 to the packing equipment for product packing.

[0026] The above-mentioned embodiment only expresses one implementation mode of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A packaging carton opening structure, comprising a carton storage (1), one side of the carton storage (1) is provided with an opening component (2) for taking out a carton (30) from the carton storage (1) and opening the carton (30), characterized in that: The box storage warehouse (1) comprises a box storage platform (3), on which a box placing station (4), a box taking station (5) and a conveying component (6) for conveying cartons (30) from the box placing station (4) to the box taking station (5) are arranged.

2. A packaging carton unpacking structure according to claim 1, characterized in that: The conveying assembly (6) comprises a plurality of conveying rollers (7) rotatably mounted on the box storage platform (3), a conveying belt (8) being sleeved and mounted on the conveying rollers (7), one of the conveying rollers (7) being connected to a conveying motor (9) and the conveying motor (9) driving the conveying belt (8) to rotate, a gantry (10) being fixedly mounted on the box storage platform (3) at the middle of the corresponding conveying belt (8), a blocking plate (11) being mounted on the gantry (10) so as to slide up and down, the blocking plate (11) dividing the box storage platform (3) into two parts which respectively serve as a box placing station (4) and a box taking station (5), when the blocking plate (11) slides to the lowest position, it blocks the carton (30) from being transported from the box placing station (4) to the box taking station (5), and a blocking cylinder (12) for driving the blocking plate (11) to slide up and down is also fixedly mounted on the gantry (10).

3. A packaging carton opening structure according to claim 2, characterized in that: The box opening assembly (2) comprises a box opening platform (13) and a mechanical arm (14). A negative pressure suction cup (19) for sucking a carton (30) is installed on the box opening platform (13). The end actuator of the mechanical arm (14) comprises a first box grabbing plate (26). A second box grabbing plate (27) is hingedly installed on the top of the first box grabbing plate (26). A box grabbing cylinder (28) is rotatably installed on the back of the first box grabbing plate (26). An obtuse-angle frame (29) is extended upward and rotatably installed on the telescopic end of the box grabbing cylinder (28). One side of the obtuse-angle frame (29) is rotatably connected to the telescopic end of the box grabbing cylinder (28). The other side of the obtuse-angle frame (29) is fixedly connected to the back of the second box grabbing plate (27). The telescopic movement of the box grabbing cylinder (28) drives the second box grabbing plate (27) to rotate relative to the first box grabbing plate (26). Negative pressure suction cups (19) are provided on the front sides of both the first box grabbing plate (26) and the second box grabbing plate (27).

4. A packaging carton unpacking structure according to claim 3, characterized in that: A plurality of negative pressure suction cups (19) are provided on the first box grabbing plate (26) and the second box grabbing plate (27), and the negative pressure suction cups (19) on the first box grabbing plate (26) and the second box grabbing plate (27) are arranged in a rectangular array.

5. The packaging carton opening structure according to claim 3, characterized in that: The unpacking table (13) is provided with a plurality of lifting components (16) arranged evenly at intervals below the table top (15), the lifting components (16) comprising a lifting cylinder (17) fixedly mounted on the unpacking table (13), the telescopic end of the lifting cylinder (17) being telescopic upward and being fixedly mounted with a cross bar (18), a plurality of negative pressure suction cups (19) being evenly fixedly mounted on the cross bar (18), and the arrangement direction of the lifting components (16) being perpendicular to the arrangement direction of the negative pressure suction cups (19).

6. A packaging carton opening structure according to claim 5, characterized in that: The table top (15) of the unpacking table (13) is an up-and-down inclined table top (15), the lifting assembly (16) is installed on the lower side of the table top (15) and arranged in a direction parallel to the inclined table top (15), and a limit baffle (20) is fixedly installed on the lower side and one of the inclined sides of the table top (15); a positioning slide rail (21) is fixedly installed on the lower side of the table top (15) of the unpacking table (13), and a swaying rod (22) for moving the carton (30) is slidably installed on the positioning slide rail (21), and a swaying motor (23) for driving the swaying rod (22) to slide is also fixedly installed on the unpacking table (13).

7. A packaging carton opening structure according to claim 6, characterized in that: Two gears (24) are rotatably mounted on the unpacking platform (13), one of the gears (24) being fixedly connected to the rotating shaft of the swaying motor (23), the two gears (24) being meshed with a same toothed belt (25), and the swaying rod (22) being fixedly connected to the toothed belt (25).

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