Packaging carton opening structure

Abstract

The utility model provides a packaging carton opening structure, which belongs to the field of packaging mechanical equipment and comprises a carton storage warehouse, one side of the carton storage warehouse is provided with a carton opening assembly used for taking out a carton from the carton storage warehouse and opening the carton, and the carton storage warehouse comprises a carton 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 utility model belongs to packaging machinery equipment field especially relates to a packaging carton opening structure. BACKGROUND

[0002] The paper box automatic packaging production line is an important equipment in the modern packaging industry, which integrates automation and intelligent technology, greatly improves the packaging efficiency and accuracy. The production line is usually composed of paperboard feeding, forming, pasting, opening, filling, sealing and labeling, etc. The advanced sensors and control system realize seamless connection between each link. In the production process, the paperboard is cut and formed accurately, and then automatically sent to the packaging station. The opening structure opens the formed carton, and the product is accurately placed in the carton. Then the automatic sealing and labeling are carried out. The whole process does not need too much manual intervention, which greatly saves the labor cost.

[0003] The cutting and forming of the carton will take more time than the packaging, so the efficiency of the whole production line depends on the cutting and forming part. In order to improve the production efficiency, the cutting and forming and product packaging are usually separated. The cut and formed cartons are placed in the storage box library, and the opening assembly takes out the cartons from the storage box library for opening and packaging, forming a production line structure with multiple cutting and forming parts and one packaging part.

[0004] However, the current storage box library cannot realize continuous feeding of the opening assembly. After the cartons in the storage box library are used up, the machine needs to be stopped for refeeding or replacement of the storage box library before packaging operation can be carried out again. The automation degree is still insufficient, which restricts the improvement of efficiency. SUMMARY

[0005] Based on the above problems existing in the prior art, the utility model provides a packaging carton opening structure, which comprises a storage box library, one side of the storage box library is provided with an opening assembly for taking out the cartons from the storage box library and opening the cartons, the storage box library comprises a storage box table, the storage box table is provided with a carton placing station, a carton taking station and a conveying assembly for conveying the cartons from the carton placing station to the carton taking station.

[0006] Among them, the conveying assembly comprises several rotating conveying rollers mounted on the storage box table, a conveying belt is sleeved and mounted on the conveying roller, one of the conveying rollers is drivingly connected to a conveying motor and drives the conveying belt to rotate, a gantry is fixedly installed at the middle part of the conveying belt, a blocking plate is slidably installed on the gantry, the blocking plate divides the storage box table into two parts and serves as the carton placing station and the carton taking station respectively, when the blocking plate slides to the lowest position, it blocks the conveying of the cartons from the carton placing station to the carton taking station, a blocking cylinder is also fixedly installed on the gantry to drive the blocking plate to slide up and down.

[0007] The opening box assembly comprises an opening box table and a mechanical arm, the opening box table is provided with a negative pressure suction disc for sucking a paper box, and the end effector of the mechanical arm comprises a first box grabbing plate, a second box grabbing plate is hingedly arranged on the top of the first box grabbing plate, a box grabbing cylinder is rotatably arranged on the back of the first box grabbing plate, a obtuse angle frame is upwardly and rotatably arranged on the extension end of the box grabbing cylinder, one side of the obtuse angle frame is rotatably connected with the extension end of the box grabbing cylinder, the other side of the obtuse angle frame is fixedly connected with the back of the second box grabbing plate, the second box grabbing plate is driven to rotate relative to the first box grabbing plate by the extension of the box grabbing cylinder, and the front of the first box grabbing plate and the front of the second box grabbing plate are provided with negative pressure suction discs.

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

[0009] The opening box table is provided with a plurality of groups of lifting assemblies which are uniformly arranged below the table top, the lifting assembly comprises a lifting cylinder which is fixedly arranged on the opening box table, the extension end of the lifting cylinder is upwardly and fixedly provided with a horizontal rod, a plurality of negative pressure suction discs are uniformly fixedly arranged on the horizontal rod, and the arrangement direction of the lifting assembly is perpendicular to the arrangement direction of the negative pressure suction discs.

[0010] The table top of the opening box table is an up-down inclined table top, the lifting assembly is arranged on the side of the table top close to the lower side and is arranged in parallel with the inclined table top, and the low side and one inclined side of the table top are fixedly provided with limiting baffles; the opening box table is fixedly provided with a positioning sliding rail on the side of the table top close to the lower side, a paper box correcting rod for correcting the paper box is slidingly arranged on the positioning sliding rail, and the opening box table is further fixedly provided with a correcting motor for driving the paper box correcting rod to slide.

[0011] The opening box table is rotatably provided with two gears, one of the gears is fixedly connected with the rotating shaft of the correcting motor, the same toothed belt is meshingly arranged on the two gears, and the paper box correcting rod is fixedly connected with the toothed belt.

[0012] The storage box separates the positions of the paper box placing and taking, the opening box assembly can simultaneously supplement the paper boxes in the paper box placing position during the process of taking the paper boxes, and when the paper boxes in the paper box taking position are consumed, the paper boxes in the paper box placing position are sent to the paper box taking position through the conveying assembly, so that the paper boxes are quickly supplemented, the conflict between the paper box placing and taking is avoided, continuous paper box taking and packaging can be realized, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a three-dimensional structure schematic view of the opening box structure of the packaging paper box.

[0014] Figure 2 It is a three-dimensional structure schematic view of the opening box structure of the packaging paper box from another angle.

[0015] Figure 3 This is a three-dimensional structural diagram of the storage warehouse.

[0016] Figure 4 This is a 3D structural diagram of the unpacking platform.

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

[0018] Figure 6 This is a structural diagram of the lifting assembly.

[0019] Figure 7 This is a 3D structural diagram of the robotic arm.

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

[0021] Figure 9 This is a three-dimensional structural diagram of the robotic arm from another angle. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0023] As attached Figures 1-9 The diagram illustrates an opening structure for a packaging carton 30, comprising a storage bin 1. An opening assembly 2 is provided on one side of the storage bin 1 for retrieving and opening the carton 30. The storage bin 1 includes a storage platform 3, on which a carton placement station 4, a carton retrieval station 5, and a conveying assembly 6 for transporting the carton 30 from the placement station 4 to the retrieval station 5 are provided. The conveying assembly 6 includes multiple rotating conveyor rollers 7 mounted on the storage platform 3. The extension direction of the conveyor rollers 7 is perpendicular to the conveying direction. A conveyor belt 8 is fitted onto each conveyor roller 7. One conveyor roller 7 serves as the driving roller, and the remaining conveyor rollers 7 serve as driven rollers. The driven rollers are connected to the driving roller via the conveyor belt 8, and the driving roller is further connected to the conveyor belt 8 via a belt and pulley. A conveyor motor 9 drives the conveyor belt 8 to rotate. A gantry frame 10 that spans the conveyor belt 8 in the width direction is fixedly installed in the middle of the storage platform 3. Slide rails are fixedly installed on both sides of the gantry frame 10. A baffle plate 11 is installed on the gantry frame 10 by sliding up and down through the cooperation of the slide rails and the slider. The baffle plate 11 divides the storage platform 3 into two parts, which serve as the box placement station 4 and the box retrieval station 5, respectively. When the baffle plate 11 slides to the bottom, it prevents the carton 30 from being transported from the box placement station 4 to the box retrieval station 5, which can avoid misoperation to a certain extent. A baffle cylinder 12 is fixedly installed on the top of the gantry frame 10. The telescopic end of the baffle cylinder 12 extends downward and is fixedly connected to the baffle plate 11. The baffle plate 11 slides up and down by telescopic drive.

[0024] The box opening assembly 2 comprises a box opening table 13 and a four-axis mechanical arm 14, the table top 15 of the box opening table 13 is an up-and-down inclined table top 15, three groups of lifting assemblies 16 are evenly arranged and fixed below the lower side of the table top 15, the arrangement direction of the three groups of lifting assemblies 16 is parallel to the inclined table top 15, the lifting assembly 16 comprises two lifting cylinders 17 fixedly installed to the box opening table 13, the telescopic ends of the two lifting cylinders 17 are upwardly telescopic and a same horizontal rod 18 is fixedly installed, the two lifting cylinders 17 are respectively located at the two ends of the horizontal rod 18, twelve negative pressure suction cups 19 are evenly fixedly installed on the horizontal rod 18, the arrangement direction of the three groups of lifting assemblies 16 is perpendicular to the arrangement direction of the negative pressure suction cups 19, a limiting baffle 20 is fixedly installed on the low side and one inclined side of the table top 15, a positioning sliding rail 21 is fixedly installed on the lower side of the table top 15, a righting rod 22 for pushing the carton 30 is slidingly installed on the positioning sliding rail 21, a righting motor 23 and two gears 24 rotatingly installed are further fixedly installed on the box opening table 13, one of the two gears 24 is fixedly connected with the rotating shaft of the righting motor 23, a same toothed belt 25 is meshingly installed on the two gears 24, the righting rod 22 is fixedly connected with the toothed belt 25, the initial position of the righting rod 22 is located on the side of the inclined side of the box opening table 13 without the limiting baffle 20, the righting rod 22 is driven by the righting motor 23 to slide to the other side. The mechanical arm 14 adopts a conventional four-axis mechanical arm body matched with a designed end effector, the end effector 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 through two hinges, two box grabbing cylinders 28 are rotatingly installed on the back of the first box grabbing plate 26, the telescopic ends of the box grabbing cylinders 28 extend upwardly and obtuse angle frames 29 are rotatingly installed, one side of the obtuse angle frame 29 is rotatingly connected with the telescopic end of the box grabbing cylinder 28, the other side of the obtuse angle frame 29 is fixedly connected with the back of the second box grabbing plate 27, the box grabbing cylinder 28 drives the second box grabbing plate 27 to rotate relative to the first box grabbing plate 26, the rotating 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, the negative pressure suction cups 19 on the mechanical arm 14 and the negative pressure suction cups 19 on the box opening table 13 are connected with an external negative pressure pump through air pipes, so as to realize negative pressure adsorption.

[0025] The opening box structure provided by the embodiment is part of the automatic packaging production line of the carton 30, the carton 30 after cutting and forming is conveyed to the box placing station 4 of the box storage table 3 by an external conveying structure, and is stacked on the box placing station 4 or is stacked at other places and placed on the box placing station 4, the conveying motor 9 is started and drives the conveying belt 8 to send the carton 30 on the box placing station 4 to the box taking station 5. At this time, the blocking cylinder 12 is started 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 mechanical arm 14 drives the end effector to move to the carton 30 on the box taking station 5, the negative pressure suction cup 19 of the first box grabbing plate 26 adsorbs the carton 30, and then the mechanical arm 14 drives the carton 30 to the upper side of the opening box 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 on the opening box table 13 and automatically slides downward along the table surface 15 of the opening box table 13 under the action of gravity until contacting the limiting baffle 20 of the low edge of the table surface 15. Then the righting motor 23 is started and drives the righting rod 22 to slide, the sliding of the righting rod 22 will push the carton 30 to contact and be righted with the limiting baffle 20 of the inclined side edge of the table surface 15, and then the lifting cylinder 17 is started to drive the cross rod 18 and the negative pressure suction cup 19 on the cross rod 18 to rise and adsorb the bottom of the carton 30 through the negative pressure suction cup 19. The mechanical arm 14 drives the end effector to move to the carton 30 on the opening box table 13 again and adsorbs the carton 30 through the negative pressure suction cup 19 of the first box grabbing plate 26, and then the mechanical arm 14 drives the end effector to pull back and pull the carton 30, the box grabbing cylinder 28 is started and drives the second box grabbing plate 27 to rotate and adsorb the other side of the carton 30 through the negative pressure suction cup 19, so that the carton 30 is kept in an opened state, at this time, the opening of the carton 30 is completed, and the mechanical arm 14 can move the opened carton 30 to the carton filling equipment to fill products.

[0026] The above-described embodiments only express one embodiment of the present application, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A carton opening structure, comprising a storage compartment (1), wherein one side of the storage compartment (1) is provided with an opening component (2) for retrieving a carton (30) from the storage compartment (1) and opening the carton (30), characterized in that, The storage warehouse (1) includes a storage platform (3), which is equipped with a box placement station (4), a box retrieval station (5), and a conveying assembly (6) for conveying the cartons (30) from the box placement station (4) to the box retrieval station (5).

2. The packaging carton opening structure according to claim 1, characterized in that, The conveying assembly (6) includes several rotating conveying rollers (7) mounted on the storage platform (3). A conveyor belt (8) is sleeved on the conveying rollers (7). One of the conveying rollers (7) is connected to a conveying motor (9) and the conveyor belt (8) is driven to rotate by the conveying motor (9). A gantry frame (10) is fixedly installed on the storage platform (3) at the middle of the corresponding conveyor belt (8). A baffle plate (11) is installed on the gantry frame (10) and slides up and down. The baffle plate (11) divides the storage platform (3) into two parts, which serve as the box placement station (4) and the box retrieval station (5) respectively. When the baffle plate (11) slides to the bottom, it blocks the carton (30) from being transported from the box placement station (4) to the box retrieval station (5). A blocking cylinder (12) is also fixedly installed on the gantry frame (10) to drive the baffle plate (11) to slide up and down.

3. The packaging carton opening structure according to claim 2, characterized in that, The box opening assembly (2) includes a box opening platform (13) and a robotic arm (14). The box opening platform (13) is equipped with a negative pressure suction cup (19) for adsorbing the carton (30). The end effector of the robotic arm (14) includes a first box gripping plate (26). A second box gripping plate (27) is hinged to the top of the first box gripping plate (26). A box gripping cylinder (28) is rotatably mounted on the back of the first box gripping plate (26). An obtuse angle frame (29) is rotatably mounted on the telescopic end of the box gripping cylinder (28). One side of the obtuse angle frame (29) is rotatably connected to the telescopic end of the box gripping cylinder (28). The other side of the obtuse angle frame (29) is fixedly connected to the back of the second box gripping plate (27). The telescopic movement of the box gripping cylinder (28) drives the second box gripping plate (27) to rotate relative to the first box gripping plate (26). Negative pressure suction cups (19) are provided on the front of both the first box gripping plate (26) and the second box gripping plate (27).

4. The packaging carton opening structure according to claim 3, characterized in that, Multiple negative pressure suction cups (19) are provided on the first gripping plate (26) and the second gripping plate (27), and the negative pressure suction cups (19) on the first gripping plate (26) and the second gripping plate (27) are arranged in a rectangular array.

5. The packaging carton opening structure according to claim 3, characterized in that, The unpacking platform (13) has several sets of lifting components (16) evenly arranged below the platform (15). The lifting components (16) include lifting cylinders (17) fixedly installed on the unpacking platform (13). The telescopic end of the lifting cylinder (17) extends upward and is fixedly installed with a crossbar (18). Multiple negative pressure suction cups (19) are evenly fixedly installed on the crossbar (18). The arrangement direction of the lifting components (16) is perpendicular to the arrangement direction of the negative pressure suction cups (19).

6. The packaging carton opening structure according to claim 5, characterized in that, The platform (15) of the unpacking platform (13) is an inclined platform (15). The lifting component (16) is installed on the lower side of the platform (15) and its arrangement direction is parallel to the inclined platform (15). Limiting baffles (20) are fixedly installed on the lower side and one of the inclined sides of the platform (15). A positioning slide rail (21) is fixedly installed on the lower side of the platform (15) of the unpacking platform (13). A straightening rod (22) for moving the carton (30) is slidably installed on the positioning slide rail (21). A straightening motor (23) for driving the straightening rod (22) to slide is also fixedly installed on the unpacking platform (13).

7. The packaging carton opening structure according to claim 6, characterized in that, Two gears (24) are mounted on the unpacking platform (13). One of the gears (24) is fixedly connected to the shaft of the centering motor (23). The same toothed belt (25) is meshed on both gears (24). The centering rod (22) is fixedly connected to the toothed belt (25).

Images