Full-automatic paper box folding device

Abstract

The utility model provides a full-automatic paper box folding device which comprises a machine frame, the machine frame is connected with a stock bin, and the stock bin is arranged on one side of the machine frame. The rack is connected with a feeding device and a folding device, the feeding device is arranged on the upper side of the folding device, and the folding device is arranged close to the stock bin. The rack is connected with a transplanting device, a conveying belt is arranged at the end, away from the folding device, of the transplanting device and connected with the rack, the folding device comprises a main folding device and a bottom sealing device, and the main folding device comprises a horizontal folding plate and a main body folding air cylinder. The bottom sealing device comprises an X-direction folding device and a Y-direction folding device, and a Z-direction locking device is arranged at the crossed position of the X-direction folding device and the Y-direction folding device. The full-automatic carton folding and sealing machine can automatically fold and seal the bottom of a carton semi-finished product, improves production efficiency, meets the requirement of large-scale production, can ensure that packaging cartons are regular and uniform through full-automatic operation, improves the consistency and stability of the cartons, and improves the quality of the cartons.

Description

Technical Field

[0001] The utility model belongs to the technical field of paper box production, and particularly relates to a fully automatic paper box folding device. Background Art

[0002] During product transportation, products are usually placed in packaging cartons to protect them from squeezing, impact, and scratches, and to prevent them from being affected by dust, moisture, etc. At the same time, packaging cartons facilitate product stacking and transportation, reducing transportation losses. Therefore, packaging cartons are widely used in the transportation, storage, and sales of products. Packaging cartons are usually made of materials such as corrugated paper and cardboard. A die-cutting machine is used to cut the printed cardboard into the designed shape to produce a semi-finished carton. The carton components are then manually folded into a three-dimensional shape and the various parts are glued and fixed. Manually folding packaging cartons is inefficient and not suitable for large-scale production needs. In addition, it is difficult to ensure that each crease is precisely in place during manual folding, resulting in an irregular shape of the packaging cartons, poor consistency and stability, affecting their load-bearing capacity and stacking stability, and affecting the quality of the cartons.

[0003] Therefore, the above problems need to be solved urgently. Utility Model Content

[0004] Purpose of the utility model: In order to overcome the above shortcomings, the utility model provides a fully automatic folding device for paper boxes, which automatically folds semi-finished paper boxes into finished paper boxes, improves production efficiency, meets the needs of large-scale production, ensures the regularity of packaging paper boxes, improves consistency and stability, ensures the load-bearing capacity of paper boxes, improves the quality of paper boxes, reduces the labor intensity of workers, and reduces production costs.

[0005] Technical Solution: To achieve the above-mentioned objectives, the present invention provides a fully automatic folding device for paper boxes, comprising a frame connected to a hopper located on one side of the frame. The frame is connected to a loading device and a folding device, the loading device being located above the folding device and adjacent to the hopper. The loading device transfers paperboard from the hopper to the folding device, which folds the paperboard into a bottom seal. The frame is connected to a transfer device located above the folding device and located at one end of the transfer device. A conveyor belt is provided at the end of the transfer device away from the folding device, the conveyor belt being connected to the frame. The transfer device transfers the folded and bottom-sealed paperboard from the folding device to the conveyor belt. The folding device comprises a main folding device and a bottom-sealing device. The main folding device comprises a horizontal folding plate, which is rotatably connected to the frame via a rotary cylinder. A main folding cylinder is located on the side of the horizontal folding plate away from the conveyor belt. The main folding cylinder is connected to the frame via a vertical plate. The cylinder shaft of the main folding cylinder is connected to a push plate, and the cylinder shaft of the main folding cylinder is retractable toward the horizontal folding plate. The bottom sealing device includes an X-direction folding device and a Y-direction folding device, which are arranged in a cross-shaped manner. A Z-direction locking device is provided at the intersection of the X-direction folding device and the Y-direction folding device. During the production process of the utility model, the punched semi-finished carton is placed in a hopper, the loading device moves the cardboard in the hopper to the folding device, the folding device folds the cardboard into the bottom sealing, the transferring device transfers the cardboard with the folded bottom sealing from the folding device to the conveyor belt, and the conveyor belt delivers the carton. The process of the folding device folding the cardboard into the bottom sealing includes: the loading device moves the cardboard to the horizontal folding plate, the main folding cylinder in the main folding device pushes the push plate to move toward the horizontal folding plate, the rotating cylinder drives the horizontal folding plate to rotate, the semi-finished carton is squeezed by the main folding cylinder and the horizontal folding plate, and is bent along the pre-pressing line to form a square carton with openings at the upper and lower ends. Then the bottom sealing device is operated, the X-direction folding device and the Y-direction folding device bend the bottom fold of the carton in turn, and the Z-direction locking device squeezes the bent bottom fold of the carton upward so that the bottom fold of the carton is locked to each other. The utility model can automatically fold the bottom of the semi-finished carton to seal the bottom, improve the automation of carton production, improve production efficiency, meet the needs of large-scale production, and fully automatic operation can ensure that the packaging cartons are regular and uniform, improve the consistency and stability of the cartons, ensure that the load-bearing capacity of the cartons meets the design requirements, and improve the quality of the cartons. Automated production greatly reduces the labor intensity of workers and reduces production costs. The X-direction, Y-direction, and Z-direction described in this specification follow a three-dimensional Cartesian rectangular coordinate system, and the X positive direction, Y positive direction, X negative direction, and Y negative direction follow the right-hand rule, that is, the X positive direction is to the right, the Y positive direction is inward, and the Z positive direction is upward.

[0006] Furthermore, in the above-mentioned fully automatic folding device for paper boxes, the X-direction folding device includes an X-positive folding mechanism and an X-negative folding mechanism, the X-positive folding mechanism is arranged on the left side of the Z-direction locking device, and the X-negative folding mechanism is arranged on the side of the Z-direction locking device away from the X-positive folding mechanism.

[0007] The X-forward folding mechanism includes an X-forward vertical plate, which is connected to the frame. An X-forward rack is provided on the side of the X-forward vertical plate close to the Z-direction locking device, and the X-forward rack is vertically slidably connected to the X-forward vertical plate. An X-forward cylinder is provided on the side of the X-forward vertical plate away from the X-forward rack, and the X-forward cylinder and the X-forward rack are drive-connected. The X-forward rack is engaged with an X-forward gear, and the X-forward gear is passed through an X-forward drive shaft, which is movably connected to the X-forward vertical plate shaft, and the X-forward drive shaft is connected to an X-forward folding arm. When the bottom edge of the carton needs to be bent forward, the X-forward cylinder drives the X-forward rack to move upward, the X-forward rack drives the X-forward gear to rotate, and the X-forward gear drives the X-forward folding arm to rotate through the X-forward drive shaft to bend the bottom edge of the carton.

[0008] The X-negative folding mechanism includes an X-negative vertical plate, which is connected to the frame. An X-negative rack is provided on the side of the X-negative vertical plate close to the Z-locking device, and the X-negative rack is vertically slidably connected to the X-negative vertical plate. An X-negative cylinder is provided on the side of the X-negative vertical plate away from the X-negative rack, and the X-negative cylinder and the X-negative rack are drive-connected. The X-negative rack is engaged with an X-negative gear, and the X-negative gear is passed through an X-negative drive shaft. The X-negative drive shaft is movably connected to the X-negative vertical plate shaft, and the X-negative drive shaft is connected to an X-negative folding arm. When the bottom edge of the paper box needs to be folded and bent, the X-negative cylinder drives the X-negative rack to move upward, the X-negative rack drives the X-negative gear to rotate, and the X-negative gear drives the X-negative folding arm to rotate through the X-negative drive shaft to fold the bottom edge of the paper box.

[0009] Furthermore, in the above-mentioned fully automatic folding device for paper boxes, the Y-direction folding device includes a Y-negative folding mechanism and a Y-positive folding mechanism. The Y-negative folding mechanism is arranged on the side of the Z-direction locking device away from the material bin, and the Y-positive folding mechanism is arranged on the side of the Z-direction locking device away from the Y-negative folding mechanism.

[0010] The Y negative folding mechanism includes a Y negative vertical plate, which is connected to the frame. A Y negative rack is provided on the side of the Y negative vertical plate close to the Z-direction locking device, and the Y negative rack is vertically slidably connected to the Y negative vertical plate. A Y negative cylinder is provided on the side of the Y negative vertical plate away from the Y negative rack, and the Y negative cylinder and the Y negative rack are driven and connected. The Y negative rack is engaged with a Y negative gear, and the Y negative gear is passed through a Y negative drive shaft, which is connected to a Y negative folding arm. The Y negative cylinder drives the Y negative rack to move upward, and the Y negative rack drives the Y negative gear to rotate. The Y negative gear drives the Y negative folding arm to rotate through the Y negative drive shaft, thereby folding the bottom edge of the paper box.

[0011] The Y-forward folding mechanism includes: a horizontal guide column and a rodless cylinder connected to the frame, the horizontal guide column and the rodless cylinder are arranged horizontally and parallel, the horizontal guide column is slidably connected to the Y-forward vertical plate, and the rodless cylinder and the Y-forward vertical plate are drive-connected. A Y-forward rack is provided on the side of the Y-forward vertical plate close to the Z-direction locking device, and the Y-forward rack is vertically slidably connected to the Y-forward vertical plate. A Y-forward cylinder is provided on the side of the Y-forward vertical plate away from the Y-forward rack, and the Y-forward cylinder and the Y-forward rack are drive-connected. The Y-forward rack is meshed with a Y-forward gear, and a Y-forward drive shaft is passed through the Y-forward gear, and the Y-forward drive shaft is connected to the Y-forward folding arm. When the loading device is loading, the rodless cylinder drives the Y positive vertical plate to slide along the horizontal guide column, and the Y positive vertical plate moves away from the hopper. After the loading device loads the semi-finished carton, the rodless cylinder drives the Y positive vertical plate to move to the side of the Z-direction locking device, and then the Y positive cylinder drives the Y positive rack to move upward, the Y positive rack drives the Y positive gear to rotate, and the Y positive gear drives the Y positive folding arm to rotate through the Y positive drive shaft to fold the bottom edge of the carton.

[0012] Furthermore, in the above-mentioned fully automatic folding device for paper boxes, the Z-direction locking device includes a Z-direction cylinder, which is connected to the frame. The cylinder shaft of the Z-direction cylinder extends from a through groove provided on the frame. The cylinder shaft of the Z-direction cylinder is connected to an arc-shaped push block, and the upper end of the cross-section of the arc-shaped push block is semicircular.

[0013] During the carton bottom sealing process, the Y-negative folding mechanism first bends the outer hem of the carton bottom. Then, the X-positive and X-negative folding mechanisms simultaneously bend the hems on both horizontal sides of the carton. Finally, the Y-positive folding mechanism bends the inner hem of the carton bottom. At this point, all four hems on the bottom of the carton have been bent. The Z-direction cylinder of the Z-direction locking device drives the arc-shaped push block, squeezing the center of the bottom of the carton. The arc-shaped push block pushes the hem of the carton bottom upward, causing the inner hem of the carton bottom to snap into the slot on the outer hem of the carton bottom. The arc-shaped push block moves downward, and the hem of the carton elastically returns to its original position, completing the carton bottom sealing.

[0014] Furthermore, in the aforementioned fully automatic carton folding device, the transfer mechanism includes two or more horizontally arranged support columns, fixedly connected to the frame at both ends. Parallel to the support columns are manual screws threadedly connected to the frame, with one end of the manual screws connected to a handwheel. A transfer plate is movably connected to the lower end of the support column. The transfer plate is a rectangular shape with its long side arranged horizontally. The manual screw is drivably connected to the transfer plate, driving the transfer plate along the support column. Connected to the underside of the transfer plate are two or more horizontally arranged transfer guide columns, with a drive screw threadedly connected to the transfer plate and connected to a motor via a belt drive. The transfer guide columns are slidably connected to a clamping device, drivably connected to the drive screw, which is driven by the motor to move the clamping device along the transfer guide columns. Before use, the handwheel is turned to move the transfer plate toward the Z-axis locking device, and the position of the clamping device is adjusted to ensure that the clamping device can clamp the carton. During the bottom sealing process of the carton, the motor drives the clamping device away from the Z-axis locking device. When the bottom sealing of the carton is completed, the clamping device moves toward the Z-axis locking device, the clamping device clamps the carton, the folding device resets, and the motor drives the clamping device to move toward the conveyor belt. The clamping device places the carton on the conveyor belt, and the conveyor belt sends the carton out.

[0015] Furthermore, in the aforementioned fully automatic carton folding device, the clamping device includes a base plate slidably connected to a transfer guide post, the base plate being drivably connected to a drive screw, the base plate being connected to a clamping guide rod, the clamping guide rod being slidably connected to a first clamping plate and a second clamping plate b. The top surface of the base plate is connected to a first clamping cylinder, which is drivably connected to the first clamping plate via a connecting block. The bottom surface of the base plate is connected to a second clamping cylinder, the cylinder shaft of the second clamping cylinder being drivably connected to the second clamping plate b. The first and second clamping cylinders simultaneously drive the first and second clamping plates b toward each other, thereby clamping the carton.

[0016] Furthermore, in the aforementioned fully automatic carton folding device, the loading device includes a loading guide rod connected to the bottom surface of the transfer plate. The loading guide rod is arranged parallel to the upper side of the Z-axis locking device and perpendicular to the support column. A loading cylinder is provided between the loading guide rods. A loading suction cup is slidably connected to the loading guide rods. The loading cylinder and the loading suction cup are drivingly connected. The loading cylinder drives the loading suction cup to slide along the loading guide rod, and the loading guide rod loads the cardboard. The loading cylinder pushes the loading suction cup toward the hopper, where the loading suction cup vacuum-absorbs the semi-finished carton. The loading cylinder drives the loading suction cup to reset, placing the semi-finished carton on the upper side of the Z-axis locking device.

[0017] Furthermore, in the aforementioned fully automatic carton folding device, a height positioning plate is connected to the bottom surface of the transfer plate. The plate comprises a horizontal portion and a vertical portion. The horizontal portion is positioned horizontally above the Z-locking device, while the vertical portion is connected to the transfer plate. When the feed device places the semi-finished carton above the Z-locking device, the horizontal portion limits the top of the semi-finished carton, ensuring a consistent height of the semi-finished carton.

[0018] Furthermore, in the above-mentioned fully automatic folding device for paper boxes, the hopper includes fixed side panels and movable side panels. The movable side panels have an L-shaped cross-section, and the fixed side panels have a mirrored L-shaped cross-section. The fixed side panels and movable side panels are arranged in parallel to form a receiving groove. A base frame is provided on the lower side of the fixed side panels and movable side panels. The base frame is formed of a square frame composed of square tubes. The base frame is connected to the frame, and the fixed side panels are fixed to the side of the base frame away from the conveyor belt. The base frame is connected to a sliding column. The movable side panels and the sliding columns are slidably connected. An adjustment screw is provided between the sliding columns. The adjustment screw and the movable side panels are drivingly connected. A handwheel is connected to the end of the adjustment screw away from the fixed side panel. The adjustment screw drives the movable side panels to move along the sliding column. An adjustable limit plate is provided on the upper side of the hopper. The cross-section of the adjustable limit plate is V-shaped. The frame is provided with a cross bar. The adjustable limit plate is connected to a slider. The slider and the cross bar are slidably connected. A locking wrench is provided on the top of the slider. The locking wrench locks the slider to the cross bar. The frame is connected to a fixed limit plate near the fixed side plate, and the crossbar is slidably connected to an adjustable side limit plate. The fixed limit plate and the adjustable side limit plate limit the two sides of the cardboard. The bottom frame is connected to a side pressure plate guide rod, which is arranged perpendicular to the crossbar. The side pressure plate guide rod is slidably connected to the side pressure plate, and the side pressure plate slides along the side pressure plate guide rod. By adjusting the distance between the fixed side plate and the movable side plate, the folding requirements of cartons of different sizes can be met and the adaptability of the device can be improved. The adjustable limit plate provides a limit for the semi-finished cardboard, preventing the semi-finished cardboard from falling out of the hopper, while allowing the semi-finished cardboard to be loaded by the loading device from the same height. The fixed limit plate and the adjustable side limit plate arrange the semi-finished cardboard neatly and in the same position, improving the consistency of the carton folding and ensuring the quality of the carton.

[0019] Furthermore, in the aforementioned fully automatic carton folding device, fixed and movable limit plates are installed on either side of the conveyor belt. The fixed limit plates are connected to the conveyor belt support, while the movable limit plates are driven by a pneumatic cylinder. The cylinder drives the movable limit plates to move, adjusting the spacing between the fixed and movable limit plates to accommodate different sized cartons, ensuring that cartons are neatly delivered from the conveyor belt. Laser detectors are installed on the sides of the conveyor belt to detect the width of the cartons. If a carton is found to be out of tolerance, the system issues an alarm to alert the operator.

[0020] As can be seen from the above technical solution, the present invention has the following beneficial effects: The present invention's fully automatic carton folding device only requires placing multiple semi-finished cartons in a hopper. The folding device automatically folds and seals the semi-finished cartons. This automatic operation ensures uniform packaging, improves the consistency and stability of the cartons, ensures that the cartons' load-bearing capacity meets design requirements, and improves carton quality. The transfer device automatically delivers the folded cartons, enhancing the automation of carton production and improving production efficiency to meet the needs of large-scale production. The device can meet the folding needs of cartons of different sizes, improving the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the fully automatic folding device for paper boxes of the present utility model;

[0022] Figure 2 for Figure 1 perspective drawing;

[0023] Figure 3 This is a perspective view of the fully automatic folding device for paper boxes of the present invention;

[0024] Figure 4 is a structural schematic diagram of the folding device;

[0025] Figure 5 is a structural schematic diagram of the X-direction folding device;

[0026] Figure 6 Schematic diagram of the structure of the Y-folding device;

[0027] Figure 7 For the Figure 1 A partial enlarged view of the Z-axis locking device;

[0028] Figure 8 is a structural schematic diagram of the transplanting device;

[0029] Figure 9 is a structural schematic diagram of the clamping device;

[0030] Figure 10 It is a structural schematic diagram of the feeding device;

[0031] Figure 11 Schematic diagram of the structure of the silo;

[0032] Figure 12 Schematic diagram of the structure of the conveyor belt.

[0033] In the figure: 1. Frame, 2. Material bin, 21. Fixed side plate, 22. Movable side plate, 23. Base frame, 231. Side pressure plate guide rod, 232. Side pressure plate, 24. Slide column, 25. Adjusting screw, 26. Cross bar, 27. Slider, 28. Fixed limit plate, 29. Adjustable side limit plate, 3. Folding device, 3a. Main folding device, 3a1. Horizontal folding plate, 3a2. Main folding cylinder, 31. X-direction folding device, 311. X-direction forward folding mechanism, 3111. X-direction forward vertical plate, 3112. X-direction forward rack , 3113, X positive gear, 3114, X positive cylinder, 3115, X positive drive shaft, 3116, X positive folding arm, 312, X negative folding mechanism, 3121, X negative vertical plate, 3122, X negative rack, 3123, X negative gear, 3124, X negative cylinder, 3125, X negative drive shaft, 3126, X negative folding arm, 32, Y folding device, 321, Y positive folding mechanism, 3211, Y positive vertical plate, 3212, Y positive rack, 3213, Y positive gear Wheel, 3214, Y positive cylinder, 3215, Y positive drive shaft, 3216, Y negative folding arm, 322, Y positive folding mechanism, 3221, Y negative vertical plate, 3222, Y negative rack, 3223, Y negative gear, 3224, Y negative cylinder, 3225, Y negative drive shaft, 3226, Y negative folding arm, 3227, horizontal guide column, 3228, rodless cylinder, 33, Z-axis locking device, 331, Z-axis cylinder, 332 arc push block, 4, transplanting device, 41, support column, 42 , manual screw, 43, handwheel, 44, transplanting plate, 4411, horizontal part, 4412, vertical part, 45, transplanting guide column, 46, driving screw, 47, clamping device, 471, base plate, 472, clamping guide rod, 473a, first clamping plate, 473b, second clamping plate, 474, first clamping cylinder, 475, second clamping cylinder, 48, motor, 5, conveyor belt, 51, fixed limit plate, 52, movable limit plate, 6, loading device, 61, loading guide rod, 63, loading cylinder, 62, loading suction cup. DETAILED DESCRIPTION

[0034] Example 1

[0035] like Figure 1-4The illustrated fully automatic folding device for paper boxes includes a frame 1 connected to a hopper 2 located on one side of the frame 1. The frame 1 is connected to a loading device 6 and a folding device 3. The loading device 6 is located above the folding device 3 and adjacent to the hopper 2. The loading device 6 transfers paper sheets from the hopper 2 to the folding device 3, where the folding device 3 folds the paper sheets into a bottom cover. The frame 1 is connected to a transfer device 4 located above the folding device 3 and at one end of the transfer device 4. A conveyor belt 5 is provided at the end of the transfer device 4 away from the folding device 3. The conveyor belt 5 is connected to the frame 1 and transfers the paper sheets, after folding and sealing the bottom cover, from the folding device 3 onto the conveyor belt 5. The folding device 3 includes a main folding device 3a and a bottom cover device. The main folding device 3a includes a horizontal folding plate 3a1, which is rotatably connected to the frame 1 via a rotary cylinder. A main folding cylinder 3a2 is provided on the side of the horizontal folding plate 3a1 away from the conveyor belt 5. The main folding cylinder 3a2 is connected to the frame 1 via a vertical plate. Its axis is connected to a push plate, allowing it to extend and retract toward the horizontal folding plate 3a1. The bottom cover assembly includes an X-folding mechanism 31 and a Y-folding mechanism 32, arranged in a cross-section. A Z-locking mechanism 33 is located at the intersection of the two mechanisms.

[0036] During the production process of the present invention, the punched semi-finished carton is placed in a hopper 2. The loading device 6 transfers the cardboard from the hopper 2 to the folding device 3. The folding device 3 folds the cardboard into a bottom seal. The transfer device 4 transfers the folded and bottom-sealed cardboard from the folding device 3 to the conveyor 5, which then delivers the carton. The folding device 3 folds the cardboard into a bottom seal during the process: the loading device 6 transfers the cardboard to the horizontal folding plate 3a1. The main folding cylinder 3a2 in the main folding device 3a pushes the push plate toward the horizontal folding plate 3a1. The rotary cylinder drives the horizontal folding plate 3a1 to rotate. The semi-finished carton is squeezed by the main folding cylinder 3a2 and the horizontal folding plate 3a1, bending along the pre-pressing line to form a square carton with open ends. The bottom seal device then operates, with the X-direction folding device 31 and the Y-direction folding device 32 sequentially bending the bottom hem of the carton. The Z-direction locking device 33 presses the bent bottom hem of the carton upward, locking the bottom hem of the carton into place.

[0037] like Figure 5 The fully automatic folding device for a paper box shown in the figure has an X-direction folding device 31 which includes an X-direction positive folding mechanism 311 and an X-direction negative folding mechanism 312. The X-direction positive folding mechanism 311 is arranged on the left side of the Z-direction locking device 33, and the X-direction negative folding mechanism 312 is arranged on the side of the Z-direction locking device 33 away from the X-direction positive folding mechanism 311.

[0038] The X-forward folding mechanism 311 includes an X-forward vertical plate 3111, which is connected to the frame 1. An X-forward rack 3112 is provided on the side of the X-forward vertical plate 3111 near the Z-locking device 33. The X-forward rack 3112 is vertically slidably connected to the X-forward vertical plate 3111. An X-forward cylinder 3114 is provided on the side of the X-forward vertical plate 3111 away from the X-forward rack 3112. The X-forward cylinder 3114 is drivingly connected to the X-forward rack 3112. The X-forward rack 3112 is meshed with an X-forward gear 3113, which is penetrated by an X-forward drive shaft 3115. The X-forward drive shaft 3115 is axially movably connected to the X-forward vertical plate 3111. The X-forward drive shaft 3115 is connected to an X-forward folding arm 3116. When the bottom of the paper box needs to be folded forward, the X forward cylinder 3114 drives the X forward rack 3112 to move upward, the X forward rack 3112 drives the X forward gear 3113 to rotate, and the X forward gear 3113 drives the X forward folding arm 3116 to rotate through the X forward drive shaft 3115 to fold the bottom of the paper box.

[0039] The X-negative folding mechanism 312 includes an X-negative vertical plate 3121, which is connected to the frame 1. An X-negative rack 3122 is provided on the side of the X-negative vertical plate 3121 near the Z-locking device 33. The X-negative rack 3122 is vertically slidably connected to the X-negative vertical plate 3121. An X-negative cylinder 3124 is provided on the side of the X-negative vertical plate 3121 away from the X-negative rack 3122. The X-negative cylinder 3124 is drivingly connected to the X-negative rack 3122. The X-negative rack 3122 is meshed with an X-negative gear 3123, which is penetrated by an X-negative drive shaft 3125. The X-negative drive shaft 3125 is axially movably connected to the X-negative vertical plate 3121. The X-negative drive shaft 3125 is connected to the X-negative folding arm 3126. When the bottom edge of the paper box needs to be folded, the X negative cylinder 3124 drives the X negative rack 3122 to move upward, the X negative rack 3122 drives the X negative gear 3123 to rotate, and the X negative gear 3123 drives the X negative folding arm 3126 to rotate through the X negative drive shaft 3125 to fold the bottom edge of the paper box.

[0040] like Figure 6 The fully automatic folding device for a paper box shown in the figure, the Y-direction folding device 32 includes a Y-negative folding mechanism 321 and a Y-positive folding mechanism 322. The Y-negative folding mechanism 321 is arranged on the side of the Z-direction locking device 33 away from the hopper 2, and the Y-positive folding mechanism 322 is arranged on the side of the Z-direction locking device 33 away from the Y-negative folding mechanism 321.

[0041] The Y-negative folding mechanism 321 includes a Y-negative vertical plate 3211, which is connected to the frame 1. A Y-negative rack 3212 is provided on the side of the Y-negative vertical plate 3211 near the Z-locking device 33. The Y-negative rack 3212 is vertically slidably connected to the Y-negative vertical plate 3211. A Y-negative cylinder 3214 is provided on the side of the Y-negative vertical plate 3211 away from the Y-negative rack 3212. The Y-negative cylinder 3214 is drivingly connected to the Y-negative rack 3212. The Y-negative rack 3212 is meshed with a Y-negative gear 3213, which is passed through a Y-negative drive shaft 3215. The Y-negative drive shaft 3215 is connected to a Y-negative folding arm 3216. The Y negative cylinder 3214 drives the Y negative rack 3212 to move upward, the Y negative rack 3212 drives the Y negative gear 3213 to rotate, and the Y negative gear 3213 drives the Y negative folding arm 3216 to rotate through the Y negative drive shaft 3215 to bend the bottom edge of the paper box.

[0042] The Y-direction folding mechanism 322 includes a horizontal guide post 3227 and a rodless cylinder 3228 connected to the frame 1. The horizontal guide post 3227 and the rodless cylinder 3228 are arranged horizontally and parallel to each other. The horizontal guide post 3227 is slidably connected to the Y-direction vertical plate 3221. The rodless cylinder 3228 is drivingly connected to the Y-direction vertical plate 3221. A Y-direction rack 3222 is provided on the side of the Y-direction vertical plate 3221 near the Z-direction locking device 33. The Y-direction rack 3222 is vertically slidably connected to the Y-direction vertical plate 3221. A Y-direction cylinder 3224 is provided on the side of the Y-direction vertical plate 3221 away from the Y-direction rack 3222. The Y-direction cylinder 3224 is drivingly connected to the Y-direction vertical plate 3222. The Y forward rack 3222 is meshed with a Y forward gear 3223, which is penetrated by a Y forward drive shaft 3225, which is connected to a Y forward folding arm 3226. When the loading device 6 is loading, the rodless cylinder 3228 drives the Y forward vertical plate 3221 to slide along the horizontal guide column 3227, and the Y forward vertical plate 3221 moves away from the hopper 2. After the loading device 6 loads the semi-finished carton, the rodless cylinder 3228 drives the Y forward vertical plate 3221 to move to the side of the Z-axis locking device 33. Then, the Y forward cylinder 3224 drives the Y forward rack 3222 to move upward. The Y forward rack 3222 drives the Y forward gear 3223 to rotate. The Y forward gear 3223 drives the Y forward folding arm 3226 to rotate via the Y forward drive shaft 3225, thereby bending the bottom edge of the carton.

[0043] like Figure 7 The fully automatic folding device for paper boxes shown in the figure, the Z-direction locking device 33 includes a Z-direction cylinder 331, the Z-direction cylinder 331 is connected to the frame 1, the cylinder shaft of the Z-direction cylinder 331 extends from the through groove provided in the frame 1, and the cylinder shaft of the Z-direction cylinder 331 is connected to an arc-shaped push block 332, and the upper end of the cross-section of the arc-shaped push block 332 is semicircular.

[0044] During the bottom sealing process of the paper box, the Y negative folding mechanism 321 first bends the outer hem of the bottom of the paper box. Then, the X positive folding mechanism 311 and the X negative folding mechanism 312 simultaneously bend the hems on both horizontal sides of the paper box. Then, the Y positive folding mechanism 322 bends the inner hem of the bottom of the paper box. At this point, all four hems of the bottom of the bottom box have been bent. The Z-direction cylinder 331 of the Z-direction locking device 33 drives the arc-shaped push block 332, squeezing the middle of the bottom of the bottom box. The arc-shaped push block 332 pushes the hem of the bottom of the paper box upward, so that the inner hem of the bottom of the paper box is locked into the slot provided on the outer hem of the bottom of the paper box. The arc-shaped push block 332 moves downward, and the hem of the paper box is elastically reset, completing the bottom sealing of the paper box.

[0045] like Figure 8 The fully automatic carton folding device shown in FIG. comprises a transfer mechanism 4 comprising two or more horizontally arranged support columns 41, each fixedly connected to a frame 1 at both ends. A manual screw 42 is provided parallel to the support columns 41, threadedly connected to the frame 1, and connected to a handwheel 43 at one end. A transfer plate 44 is movably connected to the lower end of the support column 41. The transfer plate 44 is a rectangular shape with its long side arranged horizontally. The manual screw 42 is in driving connection with the transfer plate 44, driving the transfer plate 44 along the support column 41. Connected to the lower side of the transfer plate 44 are transfer guide columns 45. Two or more horizontally arranged transfer guide columns 45 are provided, with a drive screw 46 provided between the transfer guide columns 45. The drive screw 46 is threadedly connected to the transfer plate 44 and connected to a motor 48 via a belt drive. The transfer guide post 45 is slidably connected to a clamping device 47, which is drivably connected to a drive screw 46. A motor 48 drives the clamping device 47 to move along the transfer guide post 45 via the drive screw 46. Before use, the hand wheel 43 is turned to move the transfer plate 44 toward the Z-axis locking device 33, and the position of the clamping device 47 is adjusted to ensure that the clamping device 47 can clamp the carton. During the carton bottom sealing process, the motor 48 drives the clamping device 47 away from the Z-axis locking device 33. When the carton bottom is sealed, the clamping device 47 moves toward the Z-axis locking device 33, clamps the carton, and the folding device 3 is reset. The motor 48 drives the clamping device 47 to move toward the conveyor belt 5. The clamping device 47 places the carton on the conveyor belt 5, and the conveyor belt delivers the carton.

[0046] like Figure 9The fully automatic folding device for a carton shown in FIG. 4 includes a base plate 471 that is slidably connected to a guide post 45 for transplanting. The base plate 471 is drivably connected to a drive screw 46. The base plate 471 is connected to a clamping guide rod 472, which is slidably connected to a first clamping plate 473a and a second clamping plate 473b. The top surface of the base plate 471 is connected to a first clamping cylinder 474, which is drivably connected to the first clamping plate 473a via a connecting block. The bottom surface of the base plate 471 is connected to a second clamping cylinder 475, whose cylinder shaft is drivably connected to the second clamping plate 473b. The first clamping cylinder 474 and the second clamping cylinder 475 simultaneously drive the first clamping plate 473a and the second clamping plate 473b to approach each other to clamp the carton.

[0047] like Figure 10 The fully automatic carton folding device shown includes a loading device 6 comprising a loading guide rod 61 connected to the bottom surface of the transfer plate 44. The loading guide rod 61 is arranged parallel to the upper side of the Z-axis locking device 33 and perpendicular to the support column 41. A loading cylinder 63 is provided between the loading guide rods 61. A loading suction cup 62 is slidably connected to the loading guide rod 61. The loading cylinder 63 and the loading suction cup 62 are drivingly connected. The loading cylinder 63 drives the loading suction cup 62 to slide along the loading guide rod 61, and the loading guide rod 61 loads the cardboard. The loading cylinder 63 pushes the loading suction cup 62 toward the hopper 2. The loading suction cup 62 vacuum-absorbs the semi-finished carton. The loading cylinder 63 drives the loading suction cup 62 to reset, placing the semi-finished carton on the upper side of the Z-axis locking device 33. A height positioning plate is connected to the bottom surface of the transfer plate 44. The height positioning plate includes a horizontal portion 4411 and a vertical portion 4412. The horizontal portion 4411 is positioned horizontally above the Z-axis locking device 33, while the vertical portion 4412 is connected to the transfer plate 44. When the loading device 6 places the semi-finished carton on the Z-axis locking device 33, the horizontal portion 4411 limits the top of the semi-finished carton, ensuring that the semi-finished carton has a consistent height.

[0048] like Figure 11In the fully automatic folding device for cartons shown, the hopper 2 includes a fixed side panel 21 and a movable side panel 22. The movable side panel 22 has an L-shaped cross-section, and the fixed side panel 21 has a mirrored L-shaped cross-section. The fixed side panel 21 and the movable side panel 22 are arranged in parallel to form a receiving slot. A base frame 23 is provided on the lower side of the fixed side panel 21 and the movable side panel 22. The base frame 23 is a square frame formed by square tubes. The base frame 23 is connected to the frame 1, and the fixed side panel 21 is fixed to the side of the base frame 23 away from the conveyor belt 5. The base frame 23 is connected to a slide column 24. The movable side panel 22 and the slide column 24 are slidably connected. An adjustment screw rod 25 is provided between the slide columns 24. The adjustment screw rod 25 is drivingly connected to the movable side panel 22. A handwheel is connected to the end of the adjustment screw rod 25 away from the fixed side panel 21. The adjustment screw rod 25 drives the movable side panel 22 to move along the slide column 24. An adjustable stopper with a V-shaped cross-section is installed on the upper side of the silo 2. The frame 1 is equipped with a crossbar 26, to which a slider 27 is connected. The slider 27 and crossbar 26 are slidably connected. A locking wrench is installed on the top of the slider 27, which locks the slider 27 to the crossbar 26. A fixed stopper 28 is connected to the frame 1 near the fixed side plate 21. Adjustable side stoppers 29 are slidably connected to the crossbar 26. The fixed stopper 28 and the adjustable side stopper 29 limit the position of the cardboard on both sides. The base frame 23 is connected to a side pressure plate guide rod 231, which is arranged perpendicular to the crossbar 26. The side pressure plate guide rod 231 is slidably connected to the side pressure plate 232, and the side pressure plate 232 slides along the side pressure plate guide rod 231.

[0049] like Figure 12 The fully automatic carton folding device shown in the figure features a fixed stop plate 51 and a movable stop plate 52 on either side of the conveyor belt 5. The fixed stop plate 51 is connected to the conveyor belt 5 bracket, while the movable stop plate 52 is connected to the conveyor belt 5 bracket via a pneumatic cylinder. The cylinder drives the movable stop plate 52 to move, adjusting the spacing between the fixed stop plate 51 and the movable stop plate 52 to accommodate cartons of varying sizes, ensuring that cartons are neatly fed from the conveyor belt 5. A laser detector is installed on the side of the conveyor belt 5 to detect the width of the cartons. If a carton is found to be out of tolerance, the system issues an alarm to alert the operator.

[0050] The above embodiments are illustrative and intended to illustrate the technical concepts and features of the present invention so that those skilled in the art can understand the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A fully automatic folding device for paper boxes, characterized by: The invention comprises a frame (1), wherein the frame (1) is connected to a silo (2), and the silo (2) is arranged on one side of the frame (1); the frame (1) is connected to a feeding device (6) and a folding device (3), wherein the feeding device (6) is arranged on the upper side of the folding device (3), and the folding device (3) is arranged adjacent to the silo (2); the feeding device (6) moves the cardboard in the silo (2) to the folding device (3), and the folding device (3) folds the cardboard to form a bottom cover; the frame (1) is connected to a transplanting device (4), wherein the transplanting device (4) is arranged on the upper side of the folding device (3), and the folding device (3) is arranged at one end of the transplanting device (4); a conveyor belt (5) is provided at one end of the transplanting device (4) away from the folding device (3), and the conveyor belt (5) is connected to the frame (1), and the transplanting device (4) transplants the cardboard with the folded bottom cover from the folding device (3) to the conveyor belt (5); The folding device (3) comprises a main folding device (3a) and a bottom sealing device. The main folding device (3a) comprises a horizontal folding plate (3a1), the horizontal folding plate (3a1) is rotatably connected to the frame (1) via a rotating cylinder, and a main folding cylinder (3a2) is provided on the side of the horizontal folding plate (3a1) away from the conveyor belt (5); the main folding cylinder (3a2) is connected to the frame (1) via a vertical plate, the cylinder shaft of the main folding cylinder (3a2) is connected to a push plate, and the cylinder shaft of the main folding cylinder (3a2) is extended and retracted in the direction of the horizontal folding plate (3a1); the bottom sealing device comprises an X-direction folding device (31) and a Y-direction folding device (32), the X-direction folding device (31) and the Y-direction folding device (32) are arranged in a cross-arrangement, and a Z-direction locking device (33) is provided at the intersection of the X-direction folding device (31) and the Y-direction folding device (32).

2. The fully automatic carton folding device according to claim 1, characterized in that: The X-direction folding device (31) comprises an X-direction positive folding mechanism (311) and an X-direction negative folding mechanism (312), wherein the X-direction positive folding mechanism (311) is arranged on the left side of the Z-direction locking device (33), and the X-direction negative folding mechanism (312) is arranged on the side of the Z-direction locking device (33) away from the X-direction positive folding mechanism (311); The X-direction folding mechanism (311) comprises an X-direction vertical plate (3111), the X-direction vertical plate (3111) being connected to the frame (1), an X-direction rack (3112) being provided on the side of the X-direction vertical plate (3111) close to the Z-direction locking device (33), the X-direction rack (3112) being vertically slidably connected to the X-direction vertical plate (3111); an X-direction air intake (3112) being provided on the side of the X-direction vertical plate (3111) away from the X-direction rack (3112); Cylinder (3114), the X-forward cylinder (3114) and the X-forward rack (3112) are drivingly connected; the X-forward rack (3112) is meshed with an X-forward gear (3113), the X-forward gear (3113) is penetrated by an X-forward drive shaft (3115), the X-forward drive shaft (3115) is axially movably connected to the X-forward vertical plate (3111), and the X-forward drive shaft (3115) is connected to an X-forward folding arm (3116); The X-negative folding mechanism (312) comprises an X-negative vertical plate (3121), the X-negative vertical plate (3121) is connected to the frame (1), and an X-negative rack (3122) is provided on the side of the X-negative vertical plate (3121) close to the Z-direction locking device (33), and the X-negative rack (3122) is vertically slidably connected to the X-negative vertical plate (3121); an X-negative air Cylinder (3124), the X-negative cylinder (3124) and the X-negative rack (3122) are drivingly connected; the X-negative rack (3122) is engaged with an X-negative gear (3123), and the X-negative gear (3123) is penetrated by an X-negative drive shaft (3125), the X-negative drive shaft (3125) and the X-negative vertical plate (3121) are axially movably connected, and the X-negative drive shaft (3125) is connected to an X-negative folding arm (3126).

3. The fully automatic carton folding device according to claim 1, characterized in that: The Y-direction folding device (32) comprises a Y-direction negative folding mechanism (321) and a Y-direction positive folding mechanism (322), wherein the Y-direction negative folding mechanism (321) is arranged on a side of the Z-direction locking device (33) away from the silo (2), and the Y-direction positive folding mechanism (322) is arranged on a side of the Z-direction locking device (33) away from the Y-direction negative folding mechanism (321); The Y negative folding mechanism (321) comprises a Y negative vertical plate (3211), the Y negative vertical plate (3211) being connected to the frame (1), a Y negative rack (3212) being provided on the side of the Y negative vertical plate (3211) close to the Z-locking device (33), the Y negative rack (3212) being vertically slidably connected to the Y negative vertical plate (3211); a Y negative cylinder (3214) being provided on the side of the Y negative vertical plate (3211) away from the Y negative rack (3212), the Y negative cylinder (3214) being drivingly connected to the Y negative rack (3212); the Y negative rack (3212) being meshed with a Y negative gear (3213), the Y negative gear (3213) being penetrated by a Y negative drive shaft (3215), the Y negative drive shaft (3215) being connected to a Y negative folding arm (3216); The Y-direction folding mechanism (322) comprises: a horizontal guide post (3227) and a rodless cylinder (3228) connected to the frame (1); the horizontal guide post (3227) and the rodless cylinder (3228) are arranged horizontally and in parallel; the horizontal guide post (3227) is slidably connected to a Y-direction vertical plate (3221); the rodless cylinder (3228) and the Y-direction vertical plate (3221) are drivingly connected; a Y-direction rack (3222) is provided on the side of the Y-direction vertical plate (3221) close to the Z-direction locking device (33); the ... The rack (3222) is vertically slidably connected to the Y-positive vertical plate (3221); a Y-positive cylinder (3224) is provided on the side of the Y-positive vertical plate (3221) away from the Y-positive rack (3222); the Y-positive cylinder (3224) and the Y-positive rack (3222) are drivingly connected; the Y-positive rack (3222) is engaged with a Y-positive gear (3223), and the Y-positive gear (3223) is penetrated by a Y-positive drive shaft (3225), and the Y-positive drive shaft (3225) is connected to a Y-positive folding arm (3226).

4. The fully automatic carton folding device according to claim 1, characterized in that: The Z-direction locking device (33) comprises a Z-direction cylinder (331), the Z-direction cylinder (331) is connected to the frame (1), the cylinder shaft of the Z-direction cylinder (331) extends from a through slot provided in the frame (1), the cylinder shaft of the Z-direction cylinder (331) is connected to an arc-shaped push block (332), and the upper end of the cross section of the arc-shaped push block (332) is semicircular.

5. The fully automatic carton folding device according to claim 1, characterized in that: The transplanting device (4) comprises a support column (41), wherein two or more support columns (41) are provided, the support columns (41) are arranged horizontally, and both ends of the support column (41) are fixedly connected to the frame (1), and a manual screw (42) is provided parallel to the support column (41), wherein the manual screw (42) is threadedly connected to the frame (1), and one end of the manual screw (42) is connected to a hand wheel (43); the lower end of the support column (41) is movably connected to a transplanting plate (44), and the transplanting plate (44) is a rectangle with a long side arranged horizontally. The manual screw (42) is driven and connected to the transplanting plate (44), and the manual screw (42) drives the transplanting plate (44). The transplanting plate (44) moves along the support column (41); a transplanting guide column (45) is connected to the lower side of the transplanting plate (44); two or more transplanting guide columns (45) are horizontally provided; a driving screw (46) is provided between the transplanting guide columns (45); the driving screw (46) and the transplanting plate (44) are threadedly connected; the driving screw (46) is connected to a motor (48) through a belt drive; the transplanting guide column (45) is slidably connected to a clamping device (47); the clamping device (47) and the driving screw (46) are drivingly connected; the motor (48) drives the clamping device (47) to move along the transplanting guide column (45) through the driving screw (46).

6. The fully automatic carton folding device according to claim 5, characterized in that: The clamping device (47) includes a base plate (471) slidably connected to the transplanting guide column (45), the base plate (471) is drivably connected to the driving screw (46), the base plate (471) is connected to a clamping guide rod (472), the clamping guide rod (472) is slidably connected to a first clamping plate (473a) and a second clamping plate (473b), the top surface of the base plate (471) is connected to a first clamping cylinder (474), the first clamping cylinder (474) is drivably connected to the first clamping plate (473a) through a connecting block; the bottom surface of the base plate (471) is connected to a second clamping cylinder (475), the cylinder shaft of the second clamping cylinder (475) is drivably connected to the second clamping plate (473b).

7. The fully automatic carton folding device according to claim 5, characterized in that: The feeding device (6) includes a feeding guide rod (61) connected to the bottom surface of the transplanting plate (44), the feeding guide rod (61) is arranged parallel to the upper side of the Z-axis locking device (33), the feeding guide rod (61) is arranged perpendicular to the support column (41), a feeding cylinder (63) is arranged between the feeding guide rods (61), the feeding guide rod (61) is slidably connected to the feeding suction cup (62), the feeding cylinder (63) and the feeding suction cup (62) are drivingly connected, the feeding cylinder (63) drives the feeding suction cup (62) to slide along the feeding guide rod (61), and the feeding guide rod (61) feeds the cardboard.

8. The fully automatic carton folding device according to claim 7, characterized in that: The bottom surface of the transplanting plate (44) is connected to a height positioning plate, which includes a horizontal portion (4411) and a vertical portion (4412). The horizontal portion (4411) is horizontally arranged on the upper side of the Z-direction locking device (33), and the vertical portion (4412) is connected to the transplanting plate (44).

9. The fully automatic carton folding device according to claim 1, characterized in that: The silo (2) includes a fixed side plate (21) and a movable side plate (22), the movable side plate (22) has an L-shaped cross section, the fixed side plate (21) has a mirrored L-shaped cross section, the fixed side plate (21) and the movable side plate (22) are arranged in parallel to form a receiving groove, and a bottom frame (23) is provided on the lower side of the fixed side plate (21) and the movable side plate (22), and the bottom frame (23) is formed of a square tube to form a square frame. The bottom frame (23) is connected to the frame (1), and the The fixed side plate (21) is fixed to the side of the base frame (23) away from the conveyor belt (5); the base frame (23) is connected with a slide column (24), the movable side plate (22) and the slide column (24) are slidably connected, an adjusting screw rod (25) is provided between the slide columns (24), the adjusting screw rod (25) and the movable side plate (22) are drivingly connected, the adjusting screw rod (25) is connected to a hand wheel at one end away from the fixed side plate (21), and the adjusting screw rod (25) drives the movable side plate (22) to move. 2) moves along the slide column (24); an adjustable limit plate is provided on the upper side of the silo (2), the cross section of the adjustable limit plate is V-shaped, the frame (1) is provided with a cross bar (26), the adjustable limit plate is connected to a slider (27), the slider (27) and the cross bar (26) are slidably connected, a locking wrench is provided on the top of the slider (27), and the locking wrench locks the slider (27) on the cross bar (26); the frame (1) is connected to a fixed limit plate near the fixed side plate (21) The cross bar (26) is slidably connected to an adjustable side limiting piece (29), and the fixed limiting piece (28) and the adjustable side limiting piece (29) limit the two sides of the cardboard; the bottom frame (23) is connected to a side pressure plate guide rod (231), and the side pressure plate guide rod (231) is arranged perpendicular to the cross bar (26). The side pressure plate guide rod (231) is slidably connected to a side pressure plate (232), and the side pressure plate (232) slides along the side pressure plate guide rod (231).

10. The fully automatic carton folding device according to claim 1, characterized in that: A fixed limiting plate (51) and a movable limiting plate (52) are respectively provided on both sides of the conveyor belt (5); the fixed limiting plate (51) is connected to the conveyor belt (5) bracket, and the movable limiting plate (52) is connected to the conveyor belt (5) bracket through a cylinder.

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