Rotating disc type upper cover opening boxing machine

Abstract

The utility model belongs to the field of boxing machines, and provides a rotating disc type upper cover opening boxing machine which comprises a rack, a rotating disc, a boxing assembly and a transferring assembly. Wherein the turntable is rotationally mounted on the rack and forms a plurality of supporting arms; the boxing assembly comprises a stock bin used for containing paper box blanks, a box folding mechanism used for unfolding the paper box blanks to be in a top loading state, a loading mechanism used for loading target materials and a discharging conveying belt. The stock bin, the box folding mechanism, the loading mechanism and the discharging conveying belt are arranged at intervals around the axis circumference of the rotating disc. The transferring assembly comprises a paper box clamping base used for clamping paper box blanks and a box feeding mechanism used for transferring the paper box blanks to the paper box clamping base from the stock bin, and the paper box clamping base is connected to the supporting arm and used for rotating along with the rotating disc so that the paper box blanks can sequentially pass through the box folding mechanism, the loading mechanism and the discharging conveying belt. The box feeding mechanism is arranged between the paper box clamping base and the stock bin in the radial direction of the rotating disc.

Description

Technical Field

[0001] This application belongs to the field of cartoning machines, and particularly relates to a rotary top-opening cartoning machine. Background Technology

[0002] Traditional cartoning machines typically employ a linear conveyor structure, with the carton blank sequentially passing through the opening, filling, and sealing stations along a straight conveyor path. This design, requiring each station to be linearly arranged along the conveying direction, results in a relatively long overall machine length and demands significant factory space, making it particularly unsuitable for compact production environments. Furthermore, the carton blank must complete its entire movement from the starting point to the exit point, leading to long travel distances between stations and increased cycle time, thus hindering improvements in cartoning efficiency. Therefore, it is necessary to address these technical challenges. Summary of the Invention

[0003] The purpose of this application is to provide a rotary top-opening cartoning machine to solve the technical problem of low cartoning efficiency in existing cartoning machines.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a rotary top-opening cartoning machine, comprising:

[0005] frame;

[0006] A turntable is rotatably mounted on the frame and forms several support arms that are evenly distributed around its own axis;

[0007] The carton assembly includes a hopper for accommodating a carton blank, two folding mechanisms for unfolding the carton blank into a top-filling state and for closing the carton after filling, a filling mechanism for filling the target material, and a discharge conveyor belt. The hopper, the folding mechanism, the filling mechanism, and the discharge conveyor belt are circumferentially spaced around the axis of the turntable.

[0008] The transfer assembly includes a cardboard holder for holding the cardboard blank and an upper box mechanism for transferring the cardboard blank from the hopper to the cardboard holder. The cardboard holder is connected to the support arm and rotates with the turntable so that the cardboard blank can sequentially pass through the folding mechanism for unfolding the cardboard blank into a top-loading state, the loading mechanism, the folding mechanism for closing the cardboard box after loading, and reach the front end of the discharge conveyor belt. The upper box mechanism is arranged radially between the cardboard holder and the hopper along the turntable.

[0009] Optionally, the loading mechanism includes a linear module, a movable seat that is driven by the linear module, a box blank picking seat connected to the movable seat, a box picking suction cup that is mounted on the box blank picking seat and can pick up the paper box blank from the hopper, and a box fixing suction cup that is connected to the paper box holder and can pick up the paper box blank from the box picking suction cup;

[0010] The movable seat is used to move radially along the turntable, and the axes of the box-retrieving suction cup and the box-fixing suction cup are both parallel to the moving direction of the movable seat.

[0011] Optionally, the cardboard box blank includes a long side and short sides connected to both sides of the long side, and also includes a bottom cover connected to the long side, a bottom tab connected to the bottom cover, and a front bottom flap and a rear bottom flap connected to both sides of the short sides.

[0012] The folding mechanism for unfolding the carton blank into a top-loading state includes an opening guide plate, a bottom flap mechanism for folding the front bottom flap and the rear bottom flap to be perpendicular to the short side, and a bottom cover mechanism for folding the bottom cover to be perpendicular to the long side and inserting the bottom tab into the carton blank. The opening guide plate, the bottom flap mechanism, and the bottom cover mechanism are distributed sequentially at intervals around the axis of the turntable and located between the hopper and the loading mechanism.

[0013] The box opening guide plate forms an arc-shaped edge with its axis parallel to the axis of the turntable. The arc-shaped edge is located between the hopper and the support arm and on the moving path of the carton blank so that the carton blank can unfold into a state where the long side and the short side are perpendicular to each other when it comes into contact with the arc-shaped edge.

[0014] Optionally, the bottom-flipping tongue mechanism includes a small tongue guide rod before closing the bottom and a small tongue plate after closing the bottom;

[0015] The front small tongue guide rod is formed to guide the front bottom flap and the rear bottom flap to fold into a shape perpendicular to the short side. The rear small tongue plate and the front small tongue guide rod are arranged at intervals along the circumference of the turntable and are rotatably mounted on the frame. The rotation center axis of the rear small tongue plate is perpendicular to the axis of the turntable and forms a preset length so that the rear small tongue plate can drive the rear bottom flap into the guide folding path of the front small tongue guide rod during rotation.

[0016] Optionally, the bottom cover mechanism includes a folding box bottom guide rod for guiding the bottom cover to fold and a support bar arranged side by side with the folding box bottom guide rod. The support bar is arranged on the flipping path of the bottom cover and forms a preset folded edge so that after the bottom cover abuts against the support bar, the bottom tongue of the box forms a shape that can be inserted into the interior of the paper box blank.

[0017] The flip-top mechanism further includes a bottom pressing plate, a folding bottom tongue plate, a first driving mechanism connected to the bottom pressing plate, a second driving mechanism connected to the folding bottom tongue plate, and a third driving mechanism connected to the support bar. The bottom pressing plate and the folding bottom tongue plate are stacked. The movement path of the bottom pressing plate interferes with the movement path of the bottom cover and can fold the bottom cover to be perpendicular to the long side. The movement path of the folding bottom tongue plate interferes with the movement path of the bottom tongue and can cooperate with the bottom pressing plate to insert the bottom tongue into the carton blank. The output direction of the third driving mechanism is perpendicular to the axis of the turntable and can drive the support bar to exit or enter the flip-top path area of ​​the bottom cover.

[0018] Optionally, the carton blank further includes a top cover connected to the long side, a box top tongue connected to the top cover, and a front top flap and a rear top flap connected to the two short sides. The front bottom flap and the front top flap are connected to the two ends of the short side along the height direction of the short side, and the rear bottom flap and the rear top flap are connected to the two ends of the short side along the height direction of the short side. The bottom cover and the top cover are disposed at the two ends of the long side along the height direction of the long side.

[0019] The folding mechanism that closes the carton after loading is also arranged between the loading mechanism and the discharge conveyor belt along the circumference of the turntable. It is used to fold the front top flap and the rear top flap to be perpendicular to the short side and to fold the top cover to be perpendicular to the long side. It is also used to insert the top tab into the interior of the carton blank.

[0020] Optionally, the rotary top-opening carton filling machine also includes a small flap plate disposed circumferentially between the hopper and the filling mechanism along the circumference of the rotary table;

[0021] The small tongue plate is rotatably mounted on the frame with its rotation center axis perpendicular to the axis of the turntable. The rotation path of the small tongue plate also interferes with the movement path of the front top flap and can drive the geometric center of the front top flap away from the geometric center of the carton blank around the axis of the turntable during rotation.

[0022] Optionally, this rotary top-opening carton filling machine further includes a pressure plate disposed circumferentially along the turntable between the feeding mechanism and the folding mechanism for closing the carton after feeding;

[0023] The pressure plate is movably mounted on the frame and its movement direction is parallel to the axis of the turntable. The movement path of the pressure plate is also adapted to the movement path of the target material inside the carton blank.

[0024] Optionally, this rotary top-opening cartoning machine also includes a bottom support guide plate for supporting the bottom of the carton formed after the carton blank is unfolded;

[0025] The bottom guide plate forms an arc shape coaxial with the turntable and extends from the loading mechanism to the discharge conveyor belt. The front end of the bottom guide plate is also connected to the end of the folding box bottom guide rod.

[0026] Optionally, this rotary top-opening carton filling machine also includes a vertical lid guide plate and a side guard rail coaxially arranged with the bottom guide plate, the vertical lid guide plate and the side guard rail being arranged radially above the bottom guide plate;

[0027] The upright cover guide plate extends from the position of the small tongue plate to the loading mechanism and is used to abut against the top cover to restrict the top cover from automatically folding to be perpendicular to the long side under the action of gravity. The side guard rails extend from the beginning to the end of the paper box blank to the adjacent sides of the hopper and the discharge conveyor belt, respectively. The bottom guide plate and the side guard rails are used to slide and guide the unfolded paper box blank when the paper box holder moves the paper box blank clamped in it.

[0028] The beneficial effects of the rotary top-opening cartoning machine provided in this application are as follows: Compared with the prior art, in the rotary top-opening cartoning machine provided in this application, the material hopper for placing the carton blank, the folding mechanism for unfolding the carton blank into a top-opening state and closing the carton after filling, the loading mechanism for filling the carton blank with the target material, and the discharge conveyor belt are distributed axially around the turntable. By rotating the turntable around the axis and driving the circumferentially evenly distributed support arms and carton holders to move continuously, the carton blank can form a circular flow path between the material hopper, the folding mechanism, the loading mechanism, and the discharge conveyor belt. Compared with the traditional linear conveying structure, the compact distribution of each station around the turntable in this embodiment can significantly shorten the transfer stroke of the carton blank. This allows the rotary top-opening cartoning machine provided in this embodiment to achieve higher cartoning efficiency, which is far superior to the prior art. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the overall structure of the rotary top-opening carton filling machine in the embodiments of this application. Figure 1 ;

[0031] Figure 2 This is a schematic diagram of the overall structure of the rotary top-opening carton filling machine in the embodiments of this application. Figure 2 ;

[0032] Figure 3 This is a schematic diagram of the folding box mechanism in the embodiments of this application. Figure 1 ;

[0033] Figure 4 This is a schematic diagram of the folding box mechanism in the embodiments of this application. Figure 2 ;

[0034] Figure 5 This is a schematic diagram of the overall structure of the paper box blank in the embodiments of this application;

[0035] Figure 6 This is a partial enlarged view of the rotary top-opening carton filling machine in the embodiments of this application;

[0036] Figure 7 for Figure 1 Enlarged view of a portion of point A in the middle.

[0037] The reference numerals in the figures are as follows: 100, frame; 200, turntable; 201, support arm; 300, hopper; 400, folding mechanism; 401, opening guide plate; 411, curved edge; 421, small tongue guide rod before closing the bottom; 422, small tongue plate after closing the bottom; 431, folding bottom guide rod; 432, support bar; 433, pressure plate; 434, folding bottom tongue plate; 435, first drive mechanism; 436, second drive mechanism; 437, third drive mechanism; 404, opening tongue plate; 405, pressure plate; 406, bottom support guide plate; 407, lid upright guide plate; 408 500. Side guard rail; 600. Loading mechanism; 601. Discharge conveyor belt; 702. Push plate; 803. Carton holder; 804. Box loading mechanism; 805. Linear module; 806. Moving seat; 807. Box blank holder; 808. Box suction cup; 809. Box fixing suction cup; 1000. Carton blank; 1001. Long side; 1002. Short side; 1003. Bottom cover; 1004. Bottom tongue; 1005. Front bottom fold; 1006. Rear bottom fold; 1007. Top cover; 1008. Top tongue; 1009. Front top fold; 1010. Rear top fold. Detailed Implementation

[0038] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0039] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0040] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0042] Please refer to the following: Figures 1 to 7 The present application provides a rotary top-opening cartoning machine according to an embodiment. This rotary top-opening cartoning machine includes a frame 100, a rotary table 200, a cartoning assembly, and a transfer assembly. Wherein:

[0043] A turntable 200 is rotatably mounted on a frame 100 and forms a plurality of support arms 201 evenly distributed around its own axis; the cartoning assembly includes a hopper 300 for accommodating a carton blank 1000, two folding mechanisms 400 for unfolding the carton blank 1000 into a top-loading state (i.e., unfolding to form a carton) and for closing the carton after loading, a loading mechanism 500 for loading the target material, and a discharge conveyor belt 600. The hopper 300, folding mechanism 400, loading mechanism 500, and discharge conveyor belt 600 are circumferentially spaced around the axis of the turntable 200; the transfer assembly includes a clamping mechanism. The paper box blank 1000 has a paper box holder 700 and a loading mechanism 800 for transferring the paper box blank 1000 from the hopper 300 to the paper box holder 700. The paper box holder 700 is connected to the support arm 201 and is used to rotate with the turntable 200 so that the paper box blank 1000 can pass sequentially through a folding mechanism 400 for unfolding the paper box blank 1000 into a top-loading state, a loading mechanism 500, a folding mechanism 400 for closing the paper box after loading, and reaches the front end of the discharge conveyor belt 600. The loading mechanism 800 is arranged radially between the paper box holder 700 and the hopper 300 along the turntable 200. In this embodiment, the discharge conveyor belt 600 can transport the packaged product to the target position. Here, the conveying direction of the discharge conveyor belt 600 is parallel to the radial direction of the turntable 200. When the cardboard box holder 700 rotates to the position of the discharge conveyor belt 600, the cardboard box holder 700 is aligned with the discharge conveyor belt 600. This embodiment also includes a pusher plate 601 for pushing the cardboard box (i.e., the product) filled with material from the cardboard box holder 700 and pushing it along the bottom guide plate 406 to the discharge conveyor belt 600. It is understood that the pusher plate can be driven by a linear drive device such as a cylinder or a linear module. At the same time, it is understood that the loading mechanism 500 can adopt the existing robotic arm structure to pick up the target material from the feeding conveyor and load it into the top-opening cardboard box.

[0044] According to the structure provided in this embodiment, in the rotary top-opening cartoning machine provided in this embodiment, the hopper 300 for placing the carton blank 1000, the folding mechanism 400 for unfolding the carton blank 1000 into a top-open state and for closing the carton after filling, the filling mechanism 500 for filling the carton blank 1000 with the target material, and the discharge conveyor belt 600 are distributed axially around the turntable 200. By rotating the turntable 200 around the axis and driving the circumferentially evenly distributed support arms 201 and carton holders 700 to move, the carton blank 1000 can form a circular flow path between the hopper 300, the folding mechanism 400, the filling mechanism 500, and the discharge conveyor belt 600. Compared with the traditional linear conveying structure, the compact distribution of each station around the turntable 200 in this embodiment can significantly shorten the transfer stroke of the carton blank 1000. This allows the rotary top-opening cartoning machine provided in this embodiment to achieve higher cartoning efficiency, which is far superior to the prior art.

[0045] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 7 The loading mechanism 800 includes a linear module 801, a movable seat 802 driven by the linear module 801, a box blank picking seat 803 connected to the movable seat 802, a box picking suction cup 804 mounted on the box blank picking seat 803 and capable of picking up the box blank 1000 from the hopper 300, and a fixed box suction cup 805 connected to the box holder 700 and capable of picking up the box blank 1000 from the box picking suction cup 804; the movable seat 802 is used to move radially along the turntable 200, and the axes of the box picking suction cup 804 and the fixed box suction cup 805 are parallel to the moving direction of the movable seat 802. Please refer to the following for details. Figure 6 As shown, in this embodiment, after the box-picking suction cup 804 picks up the cardboard box blank 1000 from the hopper 300, it moves towards the cardboard box holder 700 along with the box-picking seat 803, driven by the linear module 801 located above the hopper 300. It can be understood that the width of the box-picking suction cup 804 and the box-picking seat 803 is smaller than the width of the cardboard box holder 700. This allows the box-picking suction cup 804 and the box-picking seat 803 to pass through the cardboard box holder 700 until they abut against the vertical surface (i.e., the corresponding long side 1001) of the cardboard box blank 1000. The box suction cup 805 is held by the fixed box suction cup 805, and the box retrieval suction cup 804 is released. Then, the box retrieval suction cup 804 and the box retrieval blank holder 803 continue to advance a set distance to leave the trajectory area of ​​the paper box holder 700 as the turntable 200 rotates. When the turntable 200 has rotated through one division (i.e., when the next empty paper box holder 700 is aligned with the outlet of the hopper 300), the linear module 801 drives the box retrieval blank holder 803 and the box retrieval suction cup 804 to pass through the paper box holder 700 to reach the outlet of the hopper 300 for the next box retrieval, and so on. In this embodiment, the linear drive module can adopt a linear motor or other structure commonly used in the art, which will not be described in detail here.

[0046] According to the structure provided in this embodiment, the linear module 801 drives the moving seat 802 to move radially along the turntable 200, which can drive the box blank holder 803 and the box blank suction cup 804 to adsorb the paper box blank 1000 from the hopper 300 through the shortest path. At the same time, since the axis of the fixed box suction cup 805 and the box blank suction cup 804 is parallel to the moving direction of the moving seat 802, it can be ensured that the paper box blank 1000 maintains the same posture during the transfer process. In addition, the box blank suction cup 804 and the fixed box suction cup 805 can work together to complete the adsorption and release action of the paper box blank 1000. After the box blank suction cup 804 clamps the paper box blank 1000 onto the paper box holder 700, the fixed box suction cup 805 can also stably fix the paper box blank 1000 in the paper box holder 700 by adsorbing the paper box blank 1000. This is beneficial to further improve the cartoning efficiency of the turntable top-opening cartoning machine in this embodiment.

[0047] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 7 The carton blank 1000 includes a long side 1001 and short sides 1002 connected to both sides of the long side 1001. It also includes a bottom cover 1003 connected to the long side 1001, a bottom tab 1004 connected to the bottom cover 1003, and a front bottom flap 1005 and a rear bottom flap 1006 connected to the two short sides 1002. The folding mechanism 400 for unfolding the carton blank 1000 into a top-loading state includes an opening guide plate 401, a bottom flap mechanism for folding the front bottom flap 1005 and the rear bottom flap 1006 to be perpendicular to the short sides 1002, and a mechanism for folding the bottom cover 1003 to be perpendicular to the short sides 1002. The long side 1001 and the bottom tongue 1004 are inserted into the inside of the carton blank 1000. The opening guide plate 401, the bottom tongue mechanism and the bottom cover mechanism are distributed in sequence around the axis of the turntable 200 and located between the hopper 300 and the loading mechanism 500. The opening guide plate 401 forms an arc-shaped edge 411 with its axis parallel to the axis of the turntable 200. The arc-shaped edge 411 is set between the hopper 300 and the support arm 201 and is located on the moving path of the carton blank 1000 so that the carton blank 1000 can unfold into a state in which the long side 1001 and the short side 1002 are perpendicular to each other when it abuts against the arc-shaped edge 411.

[0048] According to the structure provided in this embodiment, by setting the arc-shaped edge 411 formed by the box opening guide plate 401 on the moving path of the carton blank 1000 between the hopper 300 and the support arm 201, the carton blank 1000 can naturally unfold into a state where the long side 1001 is perpendicular to the short side 1002 by continuously abutting against the arc-shaped edge 411 during the process of transferring from the hopper 300 to the carton holder 700. This can eliminate the efficiency loss caused by the paused folding action in the traditional box opening station. In addition, since the bottom flap mechanism and the bottom cover mechanism are distributed sequentially along the circumference of the turntable 200, when the carton blank 1000 rotates to the corresponding station, the bottom flap mechanism and the bottom cover mechanism can drive the front bottom flap 1005, the rear bottom flap 1006 and the bottom cover 1003 to be flipped in stages and accurately. Moreover, during the flipping of the bottom cover 1003, the bottom insert 1004 can also be inserted into the carton blank 1000 at the same time. This is conducive to further improving the cartoning efficiency of the turntable top-opening cartoning machine in this embodiment.

[0049] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 7 The bottom-flipping mechanism includes a front bottom-closing small tongue guide rod 421 and a rear bottom-closing small tongue plate 422. The front bottom-closing small tongue guide rod 421 is formed to guide the front bottom folding tongue 1005 and the rear bottom folding tongue 1006 to fold to a position perpendicular to the short side 1002. The rear bottom-closing small tongue plate 422 and the front bottom-closing small tongue guide rod 421 are sequentially spaced along the circumference of the turntable 200 and rotatably mounted on the frame 100. The rotation center axis of the rear bottom-closing small tongue plate 422 is perpendicular to the axial direction of the turntable 200 and forms a preset length so that the rear bottom folding tongue plate 422 can drive the rear bottom folding tongue 1006 into the guide folding path of the front bottom-closing small tongue guide rod 421 during rotation.

[0050] According to the structure provided in this embodiment, by matching the preset guiding shape of the front small tongue guide rod 421 with the moving path of the carton blank 1000, the front bottom folding tongue 1005 and the rear bottom folding tongue 1006 can automatically fold along the guide rod outline to the target angle perpendicular to the short side 1002 during the rotation of the turntable 200 without additional pauses or adjustments. In addition, the rear flap 422, with its preset length and a rotation center axis perpendicular to the turntable 200 axis, allows it to push the rear bottom folding tongue 1006 precisely into the guiding folding path of the front flap guide rod 421 during rotation. Then, as the carton blank 1000 moves with the carton holder 700, the final folding is completed by the front flap guide rod 421. This ensures that the rear bottom folding tongue 1006 accurately enters the front flap guide rod 421 and is guided to fold by it during the continuous movement of the carton blank 1000. This further improves the cartoning efficiency of the turntable top-opening cartoning machine in this embodiment. It can be understood that the rear flap 422 can be driven by a motor or a rotary cylinder.

[0051] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 7 The bottom cover flipping mechanism includes a folding box bottom guide rod 431 for guiding the bottom cover 1003 to fold, and a support strip 432 arranged parallel to the folding box bottom guide rod 431. The support strip 432 is arranged on the flipping path of the bottom cover 1003 and forms a preset folded edge so that after the bottom cover 1003 abuts against the support strip 432, the bottom insert 1004 forms a shape that can be inserted into the carton blank 1000. The bottom cover flipping mechanism also includes a bottom pressing plate 433, a bottom folding insert plate 434, a first drive mechanism 435 driven by the bottom pressing plate 433, a second drive mechanism 436 driven by the bottom folding insert plate 434, and a drive mechanism 436 driven by the bottom pressing plate 433. The third drive mechanism 437 of the support bar 432, the pressing plate 433 and the folding bottom tongue plate 434 are stacked. The moving path of the pressing plate 433 interferes with the moving path of the bottom cover 1003 and can fold the bottom cover 1003 to be perpendicular to the long side 1001. The moving path of the folding bottom tongue plate 434 interferes with the moving path of the box bottom tongue 1004 and can cooperate with the pressing plate 433 to insert the box bottom tongue 1004 into the carton blank 1000. The output direction of the third drive mechanism 437 is perpendicular to the axis of the turntable 200 and can drive the support bar 432 to exit or enter the flipping path area of ​​the bottom cover 1003. In this embodiment, the first drive mechanism 435, the second drive mechanism 436 and the third drive mechanism 437 can all adopt the cylinder or motor structure commonly used in the art, which will not be described in detail here.

[0052] According to the structure provided in this embodiment, by matching the preset guiding shape of the folding box bottom guide rod 431 with the moving path of the paper box blank 1000, the bottom cover 1003 can be naturally folded along the outline of the guide rod to the initial position of abutting the corner edge during the process of moving with the turntable 200. At the same time, the support bar 432 can limit the bottom cover 1003 through its preset corner edge. When the folding bottom tongue plate 434 rises, it forces the bottom tongue 1004 to form a pre-insertion posture when it abuts the support bar 432, providing space prediction for subsequent accurate insertion. After the third drive mechanism 437 drives the support bar 432 to exit the folding path of the bottom cover 1003 in a direction perpendicular to the axis of the turntable 200 (which is also the vertical direction of the vertical surface formed after the pre-folding of the bottom tongue 1004), the pressure plate 433 can be driven by the first drive mechanism 435 to apply pressure along the folding direction of the bottom cover 1003, thereby pressing the bottom cover 1003 completely into a vertical state, and at the same time, the bottom tongue 1004 is inserted into the interior of the carton blank 1000 along the guide surface formed by the side wall of the folded bottom tongue plate 434. In this embodiment, the dynamic advance and retreat of the support bar 432 is coordinated with the action sequence of the folding bottom guide rod 431, the pressure plate 433, and the folding bottom tongue plate 434. In addition, the rigid support provided by the support bar 432 for the pre-folding of the bottom tongue 1004 in the initial stage of the bottom cover 1003 folding can effectively prevent the bottom tongue 1004 from tilting and ensure the reliability of the bottom closing action. This is conducive to further improving the boxing efficiency of the rotary top opening boxing machine in this embodiment.

[0053] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 7 The cardboard box blank 1000 also includes a top cover 1007 connected to the long side 1001, a box top insert 1008 connected to the top cover 1007, and a front top flap 1009 and a rear top flap 1010 connected to the two short sides 1002. The front bottom flap 1005 and the front top flap 1009 are connected to both ends of the short side 1002 along the height direction of the short side 1002, and the rear bottom flap 1006 and the rear top flap 1010 are connected to both ends of the short side 1002 along the height direction of the short side 1002. The cover 1003 and the top cover 1007 are arranged at both ends of the long side 1001 along the height direction of the long side 1001; the folding mechanism 400, which closes the carton after loading, is also arranged between the loading mechanism 500 and the discharge conveyor belt 600 along the circumference of the turntable 200 and is used to fold the front top folding tongue 1009 and the rear top folding tongue 1010 to be perpendicular to the short side 1002 and to fold the top cover 1007 to be perpendicular to the long side 1001, and to insert the top tongue 1008 into the inside of the carton blank 1000.

[0054] According to the structure provided in this embodiment, since the positions of the top cover 1007, the top tongue 1008, the front top folding tongue 1009, and the rear top folding tongue 1010 correspond to the positions of the bottom cover 1003, the bottom tongue 1004, the front bottom folding tongue 1005, and the rear bottom folding tongue 1006 respectively, a set of folding mechanisms 400 provided along the turntable 200 axis between the loading mechanism 500 and the discharge conveyor belt 600 can fold the front top folding tongue 1009 and the rear top folding tongue 1010 to be perpendicular to the short side 1002, and can also fold the top cover 1007 to be perpendicular to the long side 1001 and insert the top tongue 1008 into the interior of the paper box blank 1000. Its principle and structure are the same as those of the folding mechanism 400 used to unfold the paper box blank 1000 into a top loading state, except that the corresponding parts are located above the paper box blank 1000, which will not be described in detail here. The above structure can further improve the boxing efficiency of the rotary top-opening boxing machine in this embodiment.

[0055] It should be noted that, since the front bottom flap 1005 and the front top flap 1009 are connected to both ends of the short side 1002 along the height direction of the short side 1002, and the rear bottom flap 1006 and the rear top flap 1010 are connected to both ends of the short side 1002 along the height direction of the short side 1002, and the bottom cover 1003 and the top cover 1007 are located at both ends of the long side 1001 along the height direction of the long side 1001, in actual production, the folding box mechanism 400 located between the hopper 300 and the loading mechanism 500 is connected to the loading mechanism 500. The folding mechanism 400 between the hopper 300 and the discharge conveyor belt 600 should be distributed on both sides of the paper box blank 1000 along the height direction of the paper box blank 1000. In this way, the folding mechanism 400 between the hopper 300 and the loading mechanism 500 can close the bottom cover 1003 of the paper box blank 1000, so that the paper box blank 1000 is formed into a loading state with the top open. The folding mechanism 400 between the loading mechanism 500 and the discharge conveyor belt 600 can close the top cover 1007 of the paper box blank 1000 after loading is completed, thus completing the final packaging effect of the product.

[0056] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 7 The rotary top-opening carton filling machine also includes a small tongue plate 404 arranged circumferentially between the material bin 300 and the filling mechanism 500 along the turntable 200; the small tongue plate 404 is rotatably mounted on the frame 100 and the rotation center axis is perpendicular to the axis of the turntable 200. The rotation path of the small tongue plate 404 also interferes with the movement path of the front top folding tongue 1009 and can drive the geometric center of the front top folding tongue 1009 away from the geometric center of the carton blank 1000 around the axis of the turntable 200 during rotation.

[0057] According to the structure provided in this embodiment, by designing the small tongue plate 404, whose rotation center axis is perpendicular to the axis of the turntable 200, to interfere with the travel path of the carton blank 1000, when the carton blank 1000 moves with the turntable 200 between the hopper 300 and the loading mechanism 500, the small tongue plate 404 rotates around the axis and its rotation trajectory forces the geometric center of the front top folding tongue 1009 to deflect outward around the axis formed by the connection between the front top folding tongue 1009 and the corresponding short side 1002. This can avoid the front top folding tongue 1009 from folding inward and interfering with the loading process of the loading mechanism 500, which is also conducive to further improving the loading efficiency of the turntable top opening cartoning machine in this embodiment.

[0058] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 7 The rotary top-opening carton filling machine also includes a pressure plate 405 arranged circumferentially along the turntable 200 between the feeding mechanism 500 and the folding mechanism 400 for closing the carton after feeding; the pressure plate 405 is movably mounted on the frame 100 and the moving direction of the pressure plate 405 is parallel to the axis of the turntable 200, and the moving path of the pressure plate 405 is also adapted to the moving path of the target material inside the carton blank 1000.

[0059] According to the structure provided in this embodiment, by adapting the linear movement path of the pressure plate 405 along the axial direction of the turntable 200 to the material movement path inside the carton blank 1000, the pressure plate 405 can be driven by the drive mechanism to press vertically downward along the axial direction of the turntable 200 when the carton blank 1000 rotates to the pressure plate 405 with the turntable 200, and immediately compact the target material already filled inside the carton blank 1000, ensuring that the material is stably positioned inside the carton. At the same time, it eliminates the risk of difficulty in inserting the top tongue 1008 when the top cover 1007 is closed due to loose material, which is also conducive to further improving the cartoning efficiency of the turntable top-opening cartoning machine in this embodiment.

[0060] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 7 The rotary top-opening carton packing machine also includes a bottom support guide plate 406, which is used to support the bottom of the carton formed after the carton blank 1000 is unfolded. The bottom support guide plate 406 forms an arc shape coaxial with the rotary table 200 and extends from the loading mechanism 500 to the discharge conveyor belt 600. The front end of the bottom support guide plate 406 is also connected to the end of the folding bottom guide rod 431.

[0061] According to the structure provided in this embodiment, the arc-shaped design of the bottom guide plate 406 and the turntable 200 being coaxial, and the layout extending from the loading mechanism 500 to the discharge conveyor belt 600, can ensure that the bottom of the carton blank 1000 is always in contact with the bottom guide plate 406 for sliding support during the loading process and subsequent conveying process. This can prevent the bottom cover 1003 from accidentally opening due to uneven force during loading or transfer, which is also conducive to further improving the cartoning efficiency of the turntable top-opening cartoning machine in this embodiment.

[0062] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 7 The rotary top-opening cartoning machine also includes a vertical cover guide plate 407 and a side guard rail 408 coaxially arranged with the bottom guide plate 406. The vertical cover guide plate 407 and the side guard rail 408 are arranged radially above the bottom guide plate 406. The vertical cover guide plate 407 extends from the position of the small tongue plate 404 to the loading mechanism 500 and is used to abut against the top cover 1007 to restrict the top cover 1007 from automatically folding under gravity to be perpendicular to the long side 1001. The side guard rail 408 extends from end to end to the adjacent side of the hopper 300 and the discharge conveyor belt 600 according to the path of the carton blank 1000. The bottom guide plate 406 and the side guard rail 408 are used to slide and guide the unfolded carton blank 1000 when the carton card holder 700 drives the carton blank 1000 inside it to move.

[0063] According to the structure provided in this embodiment, by setting the upright cover guide plate 407 and the side guard rail 408 coaxially with the bottom guide plate 406 and radially above the bottom guide plate 406, a three-dimensional spatial limit and movement guide can be formed for the carton blank 1000. This allows the folded box blank to maintain a stable posture as it rotates with the turntable 200. In addition, the upright cover guide plate 407, which extends from the small tongue plate 404 to the loading mechanism 500 and continuously abuts against the inner wall of the top cover 1007, allows the top cover 1007 to always remain open before loading. This allows the loading process to be carried out efficiently, which is also conducive to further improving the loading efficiency of the turntable top-opening cartoning machine in this embodiment.

[0064] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A rotary top-opening carton filling machine, characterized in that, include: Rack (100); A turntable (200) is rotatably mounted on the frame (100) and forms a plurality of support arms (201) evenly distributed around its own axis. The carton assembly includes a hopper (300) for accommodating a carton blank (1000), two folding mechanisms (400) for unfolding the carton blank (1000) into a top-loading state and for closing the carton after loading, a loading mechanism (500) for loading the target material, and a discharge conveyor belt (600). The hopper (300), the folding mechanism (400), the loading mechanism (500), and the discharge conveyor belt (600) are circumferentially spaced around the axis of the turntable (200). The transfer assembly includes a carton holder (700) for holding the carton blank (1000) and a loading mechanism (800) for transferring the carton blank (1000) from the hopper (300) to the carton holder (700). The carton holder (700) is connected to the support arm (201) and is used to rotate with the turntable (200) so that the carton blank (1000) can sequentially pass through the folding mechanism (400) for unfolding the carton blank (1000) into a top-loading state, the loading mechanism (500), and the folding mechanism (400) for closing the carton after loading to reach the front end of the discharge conveyor belt (600). The loading mechanism (800) is arranged radially between the carton holder (700) and the hopper (300) along the turntable (200).

2. The rotary top-opening carton filling machine as described in claim 1, characterized in that: The loading mechanism (800) includes a linear module (801), a movable seat (802) that is driven by the linear module (801), a box blank picking seat (803) connected to the movable seat (802), a box picking suction cup (804) mounted on the box blank picking seat (803) and capable of picking up the paper box blank (1000) from the hopper (300), and a box fixing suction cup (805) connected to the paper box holder (700) and capable of picking up the paper box blank (1000) from the box picking suction cup (804). The movable seat (802) is used to move radially along the turntable (200), and the axial directions of the box-retrieving suction cup (804) and the box-fixing suction cup (805) are both parallel to the moving direction of the movable seat (802).

3. The rotary top-opening carton filling machine as described in claim 1, characterized in that: The paper box blank (1000) includes a long side (1001) and short side (1002) connected to both sides of the long side (1001), and also includes a bottom cover (1003) connected to the long side (1001), a bottom tab (1004) connected to the bottom cover (1003), and a front bottom flap (1005) and a rear bottom flap (1006) connected to the two short side (1002). The folding mechanism (400) for unfolding the carton blank (1000) into a top-loading state includes an opening guide plate (401), a bottom flap mechanism for folding the front bottom flap (1005) and the rear bottom flap (1006) to be perpendicular to the short side (1002), and a bottom cover mechanism for folding the bottom cover (1003) to be perpendicular to the long side (1001) and inserting the bottom tab (1004) into the carton blank (1000). The opening guide plate (401), the bottom flap mechanism, and the bottom cover mechanism are distributed sequentially at intervals around the axis of the turntable (200) and located between the hopper (300) and the loading mechanism (500). The box opening guide plate (401) forms an arc-shaped edge (411) with its axis parallel to the axis of the turntable (200). The arc-shaped edge (411) is located between the hopper (300) and the support arm (201) and on the moving path of the carton blank (1000) so that the carton blank (1000) can unfold into a state in which the long side (1001) and the short side (1002) are perpendicular to each other when it comes into contact with the arc-shaped edge (411).

4. The rotary top-opening carton filling machine as described in claim 3, characterized in that: The bottom-flipping tongue mechanism includes a small tongue guide rod (421) before closing the bottom and a small tongue plate (422) after closing the bottom. The front small tongue guide rod (421) is formed to guide the front bottom flap (1005) and the rear bottom flap (1006) to fold to a shape perpendicular to the short side (1002). The rear small tongue plate (422) and the front small tongue guide rod (421) are arranged alternately along the circumference of the turntable (200) and rotatably mounted on the frame (100). The rotation center axis of the rear small tongue plate (422) is perpendicular to the axial direction of the turntable (200) and forms a preset length so that the rear small tongue plate (422) can drive the rear bottom flap (1006) to enter the guide folding path of the front small tongue guide rod (421) during rotation.

5. The rotary top-opening carton filling machine as described in claim 4, characterized in that: The flip-top mechanism includes a folding box bottom guide rod (431) for guiding the bottom cover (1003) to fold and a support strip (432) arranged side by side with the folding box bottom guide rod (431). The support strip (432) is arranged on the flipping path of the bottom cover (1003) and forms a preset folded edge so that after the bottom cover (1003) abuts against the support strip (432), the bottom insert (1004) forms a shape that can be inserted into the interior of the paper box blank (1000). The flip-top mechanism further includes a base plate (433), a folding bottom tongue plate (434), a first drive mechanism (435) connected to the base plate (433), a second drive mechanism (436) connected to the folding bottom tongue plate (434), and a third drive mechanism (437) connected to the support bar (432). The base plate (433) and the folding bottom tongue plate (434) are stacked. The movement path of the base plate (433) interferes with the movement path of the bottom cover (1003) and is able to... The bottom cover (1003) is folded up to be perpendicular to the long side (1001). The movement path of the folded bottom tongue plate (434) interferes with the movement path of the box bottom tongue (1004) and can cooperate with the bottom pressing plate (433) to insert the box bottom tongue (1004) into the carton blank (1000). The output direction of the third driving mechanism (437) is perpendicular to the axis of the turntable (200) and can drive the support bar (432) to exit or enter the flipping path area of ​​the bottom cover (1003).

6. The rotary top-opening carton filling machine as described in claim 5, characterized in that: The paper box blank (1000) further includes a top cover (1007) connected to the long side (1001), a box top insert (1008) connected to the top cover (1007), and a front top flap (1009) and a rear top flap (1010) connected to the short sides (1002) on both sides. The front bottom flap (1005) and the front top flap (1009) are connected to both ends of the short side (1002) along the height direction of the short side (1002). The rear bottom flap (1006) and the rear top flap (1010) are connected to both ends of the short side (1002) along the height direction of the short side (1002). The bottom cover (1003) and the top cover (1007) are disposed at both ends of the long side (1001) along the height direction of the long side (1001). The folding mechanism (400) for closing the carton after loading is arranged circumferentially between the loading mechanism (500) and the discharge conveyor belt (600) along the turntable (200) and is used to fold the front top flap (1009) and the rear top flap (1010) perpendicular to the short side (1002) and to fold the top cover (1007) perpendicular to the long side (1001), and also to insert the top tab (1008) into the interior of the carton blank (1000).

7. The rotary top-opening carton filling machine as described in claim 6, characterized in that: It also includes a small tongue plate (404) arranged circumferentially between the hopper (300) and the loading mechanism (500) along the turntable (200); The small tongue plate (404) is rotatably mounted on the frame (100) and its rotation center axis is perpendicular to the axis of the turntable (200). The rotation path of the small tongue plate (404) also interferes with the movement path of the front top flap (1009) and can drive the geometric center of the front top flap (1009) away from the geometric center of the carton blank (1000) around the axis of the turntable (200) during rotation.

8. The rotary top-opening carton filling machine as described in claim 7, characterized in that: It also includes a pressure plate (405) disposed circumferentially between the loading mechanism (500) and the folding mechanism (400) for closing the carton after loading. The pressure plate (405) is movably mounted on the frame (100) and the moving direction of the pressure plate (405) is parallel to the axial direction of the turntable (200). The moving path of the pressure plate (405) is also adapted to the moving path of the target material inside the carton blank (1000).

9. The rotary top-opening carton filling machine as described in any one of claims 7-8, characterized in that: It also includes a bottom support guide plate (406) for supporting the bottom of the paper box formed after the paper box blank (1000) is unfolded; The bottom guide plate (406) forms an arc shape coaxial with the turntable (200) and extends from the loading mechanism (500) to the discharge conveyor belt (600). The front end of the bottom guide plate (406) is also connected to the end of the folding box bottom guide rod (431).

10. The rotary top-opening carton filling machine as described in claim 9, characterized in that: It also includes a vertical cover guide plate (407) and a side guard rail (408) coaxially arranged with the bottom support guide plate (406). The vertical cover guide plate (407) and the side guard rail (408) are arranged radially above the bottom support guide plate (406). The upright cover guide plate (407) extends from the position of the small tongue plate (404) to the loading mechanism (500) and is used to abut against the top cover (1007) to restrict the top cover (1007) from automatically folding under gravity to be perpendicular to the long side (1001). The side guard rail (408) extends from the beginning to the end of the paper box blank (1000) to the adjacent sides of the hopper (300) and the discharge conveyor belt (600) respectively. The bottom guide plate (406) and the side guard rail (408) are used to slide and guide the unfolded paper box blank (1000) when the paper box holder (700) drives the paper box blank (1000) inside it to move.

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