A stacking and conveying equipment for packaging box production

Abstract

The present application relates to the technical field of packaging box transportation, and specifically discloses a stacking and conveying equipment for packaging box production. The fixed connection between the conveying frame and the lifting frame in the present application constructs a spatial three-dimensional working platform, and the conveying system realizes the continuous horizontal transportation of the cigarette box packaging paper jams. The correction mechanism pre-adjusts the position of the cigarette box packaging paper jams before they enter the lifting area. The vertically extended lifting frame integrates the lifting mechanism and the stacking mechanism to form a compact vertical working unit, so that the cigarette box packaging paper jams can directly enter the lifting process after horizontal correction. The coordinated design of the straightening mechanism and the correction end of the correction mechanism actively sorts out the edge angle shape while implementing position correction, avoiding the wrinkle offset caused by the overhanging edge angle in the traditional pushing process, and eliminating the need for secondary leveling in the subsequent packaging process.

Description

Technical Field

[0001] The present application relates to the technical field of packaging box transportation, and in particular to a stacking and conveying device for packaging box production. Background Art

[0002] In the cigarette production process, cigarette packaging paperboard serves as a key substrate for finished cigarettes. Its pre-pressed, folded lines and composite functional coatings enable rapid prototyping, sealing, and anti-counterfeiting traceability on automated production lines. Its structural integrity and geometric precision directly determine the physical strength and packaging yield of cigarette boxes, making it an indispensable standardized consumable in the tobacco industry chain.

[0003] Because the fiber characteristics of individual sheets of cigarette packaging paper easily cause curling and deformation during storage and transportation, large-scale production requires standardized integration through precise stacking and correction. For example, Chinese invention patent publication number CN114852704B discloses a fully automatic layered stacking and palletizing device and method for packaging paper boxes. After the cigarette packaging paper is stacked layer by layer on a conveyor belt to form a stack, the uneven edges of the stack must be mechanically corrected. This is achieved using correction plates on both sides of the conveyor belt to achieve physical alignment of the stacked ends.

[0004] However, in the process of pushing and correcting the cigarette box packaging paper, the detailed features of the cigarette box packaging paper structure are often overlooked, especially the edge corners protruding from the ends of the cigarette box packaging paper. When the traditional mechanical pushing method is used to correct the position of the two ends of the cigarette box packaging paper, it is easy to produce a direct pressure or pushing effect on the edge corners. Such forces may cause deformation and dislocation of the edge corners, resulting in the edge corners needing to be readjusted before packaging, which not only increases the subsequent processing steps, but may also affect the appearance quality of the final product. Therefore, there is still room for improvement in the structural design and action coordination of the existing stacking and conveying methods. There is an urgent need for a new type of stacking and conveying device that can ensure the accuracy of the position correction of the cigarette box packaging paper while avoiding damage to the edge corners. Summary of the Invention

[0005] In order to overcome the problem in the above-mentioned technology that when correcting the stacking position of cigarette box packaging paper, the edge angle is easily deformed or offset, which leads to complicated process, reduced packaging efficiency and unstable finished product quality, the present application provides a stacking and conveying equipment for packaging box production.

[0006] The present application provides a stacking and conveying device for packaging box production, which adopts the following technical solution:

[0007] A stacking and conveying device for producing packaging boxes, comprising a conveying frame and a lifting frame fixed to one end of the conveying frame and extending in a vertical direction, wherein a conveying system for conveying cigarette box packaging paper is provided on the conveying frame along its length direction;

[0008] The lifting frame is provided with a correction mechanism for correcting the position of the cigarette packing paper jam at one end close to the conveying frame, and the lifting frame is provided with a lifting mechanism for vertically lifting the cigarette packing paper jam after correction at the end of the conveying system, and a stacking mechanism for stacking the lifted cigarette packing paper jam;

[0009] The correction end of the correction mechanism is provided with a straightening mechanism for straightening the edge angle of the end of the cigarette box packaging paper.

[0010] By adopting the above technical solution, the fixed connection between the conveyor frame and the lifting frame constructs a three-dimensional spatial working platform. The conveying system realizes the continuous horizontal conveyance of cigarette boxes, and the correction mechanism pre-adjusts the position of the cigarette boxes before they enter the lifting area. The vertically extended lifting frame integrates the lifting mechanism and the stacking mechanism to form a compact vertical working unit, allowing the cigarette boxes to enter the stacking process directly after horizontal correction. The coordinated design of the straightening mechanism and the correction end of the correction mechanism actively sorts out the edge angle shape while implementing position correction, avoiding the wrinkle offset caused by the overhanging edge corners during the traditional pushing process and eliminating the need for secondary leveling in the subsequent packaging process.

[0011] Optionally, the correction mechanism includes a first telescopic member and a mounting plate arranged at the telescopic end of the first telescopic member, the telescopic direction of the first telescopic member is perpendicular to the conveying direction of the conveying system, and the straightening mechanism is arranged on the mounting plate.

[0012] By adopting this technical solution, the linear motion direction of the first telescopic member is perpendicular to the conveying direction, ensuring that the corrective force applied by the push plate is always perpendicular to the end face of the cigarette box. The mounting plate serves as a multifunctional carrier, integrating the straightening mechanism and the thrust actuator into a single module. This synchronizes the straightening action during the process of pushing against the cigarette packaging jam, achieving the dual functions of position calibration and edge angle processing in a single action.

[0013] Optionally, the straightening mechanism includes a fixing rod, a mounting tube, an extension plate, a push plate, a telescopic limit assembly, a rotation limit assembly, and an unlocking assembly, wherein the fixing rod is mounted on the mounting plate, and a peripheral wall of the mounting tube is fixedly connected to an end of the fixing rod away from the mounting plate;

[0014] Two extension plates are provided, and the two extension plates are respectively slidably inserted into the two ports of the mounting tube. Two sets of telescopic limit assemblies and rotation limit assemblies are provided corresponding to the two extension plates. The telescopic limit assemblies are used to retract the two extension plates into the two ports of the mounting tube respectively.

[0015] The push plates are provided with two pieces corresponding to the two extension plates, and the ends of the two push plates are respectively rotatably mounted on the ends of the corresponding extension plates extending out of the mounting tubes, and the rotation limiting assembly is used to limit the corresponding push plates to be retracted to a position parallel to the fixing rod;

[0016] The unlocking component is used to extend the two extension plates to match the length of the cigarette box packaging paper port when the first telescopic member is extended, and then rotate the two push plates to push the edge corners to a position flush with the cigarette box packaging paper.

[0017] By adopting the above technical solution, the fixed rod and the mounting tube form a rigid support skeleton, and the double-end sliding plug-in structure of the extension plate realizes adaptive adjustment of the width of the push surface. The telescopic limit component causes the extension plate to shrink normally through elastic constraints to meet the storage needs of compact space. The rotation limit component limits the push plate to a storage posture parallel to the fixed rod to avoid interfering with the cigarette box conveying process. The unlocking component is triggered in two stages when the telescopic part is extended: first, the extension plate is pushed to expand to the end size of the cigarette box packaging card, and then the push plate is released and rotated to the working position. At this time, the outer surface of the push plate completely flattens the overhanging edge angle to be coplanar with the side wall of the cigarette box packaging card, so that the cigarette box packaging card can be packaged later.

[0018] Optionally, the telescopic limit assembly includes a first elastic member arranged in the mounting tube, and the two first elastic members are used to move the two extension plates toward each other, and the unlocking assembly is used to overcome the elastic force of the two first elastic members and push the two extension plates toward each other.

[0019] By adopting this technical solution, the first elastic member installed inside the mounting tube continuously applies a bidirectional contraction force, ensuring that the extension plate maintains a minimum footprint when not in operation. The unlocking assembly overcomes the constraint of the first elastic member through external force, allowing the two extension plates to slide apart and apart. This mechanical self-locking structure automatically resets in the absence of external force, reducing the number of driving components. The wedge-shaped inclined surfaces of the extension plates cooperate with the unlocking assembly to achieve synchronous and symmetrical extension, ensuring that the center of the push surface is always aligned with the axis of the cigarette box.

[0020] Optionally, the rotation limiting assembly includes a torsion spring provided at a rotation location of the push plate and the extension plate, and the torsion spring is used to rotate the end of the push plate away from the extension plate in a direction away from the fixing rod.

[0021] By adopting this technical solution, a torsion spring is pre-set at the pivot point between the push plate and the extension plate, normally driving the push plate to remain extended. This elastic energy storage design ensures that the push plate maintains continuous outward pressure in the working position, ensuring the stability of the edge flattening action. Once the rotation limit assembly is released, the torsion spring instantly drives the push plate to rotate rapidly to the preset angle, forming a complete push surface parallel to the side of the cigarette box cardboard, preventing paper deformation caused by rigid impact.

[0022] Optionally, the unlocking assembly includes a connecting rod, a push block, a pulling rope, a pull rod and a second elastic member, the connecting rod is fixed to the lifting frame, the push block is fixedly mounted on the connecting rod, and the two side walls are arranged to be wedge-shaped inclined surfaces, the mounting tube is provided with a through slot for the push block to extend into the mounting tube, and the ends of the two extension plates close to each other are arranged to be adapted wedge-shaped inclined surfaces corresponding to the wedge-shaped inclined surfaces of the push block, and when there is relative displacement between the push block and the ends of the two extension plates, the push block can push the two extension plates to move away from each other;

[0023] The pulling rope is wound around the rotating shaft of the push plate, the pulling rod is fixedly connected to the end of the pulling rope, and is slidably installed in the extension plate with the end extending out of the wedge-shaped inclined surface of the extension plate. The second elastic member is arranged in the extension plate and can overcome the torsion force of the torsion spring to pull the push plate to a position parallel to the fixed rod.

[0024] By adopting the above technical solution, the connecting rod fixed to the lifting frame serves as the trigger base, and the wedge-shaped push block at its end moves with the correction mechanism. When the mounting tube moves, the push block and the mounting tube produce relative displacement, and the inclined surface of the push block and the inclined surface at the end of the extension plate produce relative displacement, pushing the retracted extension plate outward to complete the first stage of extension. At the same time, the pulling rope is tightened around the rotating shaft of the push plate, and the torque of the torsion spring is offset by the action of the second elastic member, so that the push plate maintains a retracted posture. After the extension plate is extended into place, the push block continues to displace to release the pull rod limit, and the second elastic member releases the tension to cause the torsion spring to drive the push plate to rotate and expand, realizing the mechanical timing control of the double action, thereby pushing the inward-bent edge corner to a position coplanar with the side wall of the cigarette box packaging cardboard, which is convenient for subsequent packaging processing.

[0025] Optionally, the conveying system includes a conveyor belt and a driving mechanism for driving the conveyor belt to convey. The conveyor belt is arranged on the conveyor frame and multiple conveyor belts are arranged in parallel. Each conveyor belt can jointly transfer the cigarette box packaging paper on the conveyor frame to the end of the conveyor frame close to the lifting frame.

[0026] By employing this technical solution, multiple parallel conveyor belts create a distributed conveying surface, with synchronized drive mechanisms ensuring a stable horizontal position for the cigarette packaging paper. The belt conveyor structure reduces the risk of friction damage to the bottom of the cigarette box, and the gaps between the belts create a clearing for the subsequent lifting mechanism. A terminal confluence ensures precise delivery of the cigarette packaging paper to the correction station, while the coplanar support of the multiple belts prevents center collapse and deformation of thin cigarette boxes.

[0027] Optionally, a lifting mechanism is further provided inside the conveyor frame, and the lifting end of the lifting mechanism can pass through the gap between adjacent conveyor belts during the lifting process.

[0028] By adopting the above technical solution, the lifting mechanism hidden inside the conveyor frame can be lifted vertically in the gap between adjacent conveyor belts. If the conveyor belt fails or there is any other need to remove the cigarette packaging jam on the conveyor belt, the cigarette packaging jam can be removed from the conveyor belt and placed in a suspended position.

[0029] Optionally, the lifting mechanism includes a lifting cylinder, a lifting plate, a lifting platform and a limit plate, the lifting cylinder is vertically mounted on the lifting frame, the lifting plate is fixed to the telescopic end of the lifting cylinder, the lifting platform is slidably sleeved on the telescopic end of the lifting cylinder, and there is friction damping between the lifting platform and the telescopic end of the lifting cylinder, and multiple groups of rollers are rotatably installed on the top of the lifting platform for conveying cigarette box packaging paper placed on the lifting platform;

[0030] The limit plate is vertically arranged in the lifting frame and is fixed to the end of the conveying frame. A lifting rail is provided on the limit plate corresponding to the lifting platform. The lifting platform partially passes through the lifting rail and extends to the other side of the limit plate. When the lifting cylinder drives the lifting platform to move to the two ends of the lifting rail, the lifting plate can extend out of the upper surface of the lifting platform or be retracted from above the lifting platform to be flush with the upper surface of the lifting platform.

[0031] By adopting this technical solution, the lifting cylinder drives the lifting plate to move vertically, while the lifting platform, which is sleeved on the telescopic end of the cylinder, slides relative to it through friction damping. When the lifting cylinder moves down to be flush with the conveyor belt, the cigarette packaging paper is transferred from the conveyor belt to the lifting platform. At this time, the lifting cylinder rises, driving the cigarette packaging paper to the stacking height.

[0032] Optionally, the stacking mechanism includes a stacking cylinder and a stacking plate, the stacking cylinder is fixed on the lifting frame, and the telescopic end can move in the horizontal direction, the stacking plate is fixed to the telescopic end of the stacking cylinder, and the length direction of the stacking plate extends in the vertical direction; when the stacking plate moves the cigarette box packaging cardboard from the lifting platform passing through the lifting track to the lifting plate, the lifting cylinder can drive the lifting plate to rise and fall, and the stacking plate stacks the lifted cigarette box packaging cardboard to different heights.

[0033] By employing this technical solution, the stacking cylinder drives the stacking plate to reciprocate horizontally, with its vertically extending stacking plate forming a vertical stacking surface. When the stacking plate pushes the cigarette packaging cardboard onto the lifting plate, the lifting cylinder drives the lifting plate up to the stacking height. At this point, the stacking cylinder drives the stacking plate to move horizontally, stacking the cigarette packaging cardboard onto the stacking area. By alternating the lifting and lowering of the lifting cylinder and the horizontal movement of the stacking plate, continuous stacking of cigarette boxes is achieved, from single-layer alignment to multi-layer stacking, significantly improving stacking efficiency.

[0034] In summary, this application includes at least one of the following beneficial technical effects:

[0035] 1. This application improves the structure of a conventional correction mechanism by replacing the correction end of the correction mechanism with a straightening mechanism that has both correction and straightening functions. This structure can simultaneously correct the position of the end of the cigarette packaging paper jam and adjust the position of the edge angle of the end of the cigarette packaging paper jam. This straightening of the edge angle is completed without affecting normal correction, facilitating the subsequent cigarette packaging paper jam packaging process.

[0036] 2. In the process of correcting the end of the cigarette package paper jam, the straightening mechanism in the present application can straighten the edge corners in different position states such as inward turning or outward expansion at the same time, taking into account the simultaneous straightening of the edge corners in different states. In addition, when straightening, the straightening mechanism will enter the end of the cigarette package paper jam with the shortest length, and when it approaches the end of the cigarette package paper jam, it will extend to a length that is adapted to the end of the cigarette package paper jam. Only then will the edge corner of the cigarette package paper jam be straightened. This can avoid interference with the position of the edge corner when the straightening mechanism enters, avoid bending or wrinkling the edge corner, and ensure the quality of the edge corner itself as much as possible during the straightening and correction process.

[0037] 3. In the second embodiment, the straightening mechanism can also be adjusted according to the size of the end or the angle of the edge of the cigarette packaging paper, so that the edge angles of cigarette packaging paper of different sizes or different states can be well corrected and straightened, meeting the processing requirements of different cigarette packaging paper;

[0038] 4. When the conveyor belt fails or the cigarette packaging paper has quality defects, the lifting mechanism can lift the cigarette packaging paper to a height that is separated from the belt surface of the conveyor belt. At this time, the conveyor belt can be directly repaired or the batch of quality defective cigarette packaging paper can be unloaded without stopping the machine;

[0039] 5. The lifting plate and lifting platform of the jacking mechanism adopt a sliding damping design, which allows the lifting plate to independently drive the cigarette box packaging paper jams for stacking when it reaches the stacking height, reducing the impact of the lifting platform on the stacking of cigarette box packaging paper jams during stacking, and improving the stacking quality of cigarette box packaging paper jams. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0041] Figure 1 This is a schematic diagram of the overall structure of a stacking and conveying device for packaging box production in Example 1 of the present application;

[0042] Figure 2 yes Figure 1 A schematic diagram of the overall structure of a stacking and conveying equipment for packaging box production from another perspective;

[0043] Figure 3 yes Figure 1 A schematic diagram of a portion of the structure of a stacking and conveying equipment for packaging box production;

[0044] Figure 4 yes Figure 3 Structural diagram of the middle lifting frame;

[0045] Figure 5 yes Figure 4 Schematic diagram of the structure of the straightening mechanism;

[0046] Figure 6 yes Figure 5 Schematic diagram of part of the structure of the straightening mechanism;

[0047] Figure 7 yes Figure 6 Structural diagram of the extension plate;

[0048] Figure 8 Schematic diagram of the internal structure of the push block in Example 2;

[0049] Figure 9 yes Figure 3 Schematic diagram of the structure of the middle lifting mechanism.

[0050] Reference numerals: 1, conveying frame; 11, lifting frame; 2, conveying system; 21, conveyor belt; 22, driving mechanism; 3, correction mechanism; 31, first telescopic member; 32, mounting plate; 4, lifting mechanism; 41, lifting cylinder; 42, lifting plate; 43, lifting platform; 44, limit plate; 441, lifting rail; 5, stacking mechanism; 51, stacking cylinder; 52, stacking plate; 6, straightening mechanism; 61, Mounting cylinder; 62, extension plate; 621, plug-in slot; 63, push plate; 64, limit push plate; 7, torsion spring; 8, unlocking assembly; 81, connecting rod; 82, push block; 821, convex strip; 822, electric push rod; 823, connecting rod; 824, clamping block; 825, clamping block; 83, pulling rope; 84, pulling rod; 9, lifting mechanism; 91, lifting cylinder; 92, fixing plate; 93, lifting block. DETAILED DESCRIPTION

[0051] The following is combined with Figure 1-9 , further details of this application are given.

[0052] The embodiment of the present application discloses a stacking and conveying device for producing packaging boxes.

[0053] Example 1:

[0054] Reference Figure 1 、 Figure 2 and Figure 3 A stacking and conveying device for packaging box production includes a conveying frame 1 and a lifting frame 11 fixed to one end of the conveying frame 1 and extending in the vertical direction. A conveying system 2 for conveying cigarette box packaging paper is provided on the conveying frame 1 along the length direction.

[0055] A correction mechanism 3 for correcting the position of the cigarette box packaging jam is provided at one end of the lifting frame 1 close to the conveying frame 1. The lifting frame 11 is provided with a lifting mechanism 4 for vertically lifting the cigarette box packaging jam after correction at the end of the conveying system 2, and a stacking mechanism 5 for stacking the lifted cigarette box packaging jam.

[0056] The correction end of the correction mechanism 3 is provided with a straightening mechanism 6 for straightening the edge angle of the end of the cigarette packing cardboard. Figure 2 、 Figure 3 and Figure 4 The correction mechanism 3 includes a first telescopic member 31 and a mounting plate 32 arranged at the telescopic end of the first telescopic member 31. The first telescopic member 31 adopts an electric telescopic rod. The telescopic direction of the first telescopic member 31 is perpendicular to the conveying direction of the conveying system 2. The straightening mechanism 6 is arranged on the mounting plate 32.

[0057] Reference Figure 4 、 Figure 5 and Figure 6The straightening mechanism 6 includes a fixing rod, a mounting tube 61, an extension plate 62, a push plate 63, a telescopic limit assembly, a rotation limit assembly and an unlocking assembly 8. The fixing rod is installed on the mounting plate 32, and the peripheral wall of the mounting tube 61 is fixedly connected to the end of the fixing rod away from the mounting plate 32.

[0058] There are two extension plates 62, which are respectively slidably inserted into the two ports of the mounting tube 61. Two sets of telescopic limit assemblies and rotation limit assemblies are respectively provided for the two extension plates 62. The telescopic limit assemblies are used to make the two extension plates 62 retract into the two ports of the mounting tube 61.

[0059] Two push plates 63 are provided corresponding to the two extension plates 62. The ends of the two push plates 63 are respectively rotatably installed on the ends of the corresponding extension plates 62 extending out of the mounting tube 61. The rotation limit assembly is used to limit the corresponding push plates 63 to a position parallel to the fixed rod.

[0060] The unlocking assembly 8 is used to extend the two extension plates 62 to match the length of the cigarette box packaging paper end when the first telescopic member 31 is extended, and then rotate the two push plates 63 to push the edge corners to a position flush with the cigarette box packaging paper.

[0061] Further, refer to Figure 5 The straightening mechanism 6 further includes limit push plates 64 fixed to both sides of the mounting plate 32 , and the two limit push plates 64 extend outward away from one end of the mounting plate 32 .

[0062] The telescopic limit assembly includes a first elastic member arranged in the mounting tube 61. The first elastic member is a spring. The two first elastic members are used to move the two extension plates 62 toward each other. The unlocking assembly 8 is used to overcome the elastic force of the two first elastic members and push the two extension plates 62 away from each other.

[0063] Reference Figure 6 and Figure 7 The rotation limiting assembly includes a torsion spring 7 provided at the rotation position of the push plate 63 and the extension plate 62. The torsion spring 7 is used to rotate the push plate 63 away from the end of the extension plate 62 in a direction away from the fixed rod.

[0064] Reference Figure 6 、 Figure 7 and Figure 8The unlocking assembly 8 includes a connecting rod 81, a push block 82, a pulling rope 83, a pull rod 84 and a second elastic member. The connecting rod 81 is fixed to the lifting frame 11, and the push block 82 is fixedly installed on the connecting rod 81, and the two side walls are set to wedge-shaped inclined surfaces. A through groove for the push block 82 to extend into the mounting cylinder 61 is opened on the mounting cylinder 61. The ends of the two extension plates 62 that are close to each other are set to adaptive wedge-shaped inclined surfaces corresponding to the wedge-shaped inclined surfaces of the push block 82. When there is a relative displacement between the push block 82 and the ends of the two extension plates 62, the push block 82 can push the two extension plates 62 to move away from each other.

[0065] The pulling rope 83 is wound around the rotating shaft of the push plate 63, the pull rod 84 is fixedly connected to the end of the pulling rope 83, and is slidably installed in the extension plate 62 with the end extending out of the wedge-shaped inclined surface of the extension plate 62. The second elastic member is also a spring. The second elastic member is arranged in the extension plate 62 and can overcome the torsion of the torsion spring 7 to pull the push plate 63 to a position parallel to the fixed rod.

[0066] Further, refer to Figure 1 The two wedge-shaped inclined surfaces of the push block 82 are fixed with convex strips 821, and the convex strips 821 are arranged to form an inclined surface corresponding to the wedge-shaped inclined surface of the push block 82. The side wall of the extension plate 62 where the pull rod 84 is located is provided with an insertion groove 621 for the convex strips 821 to slide and insert.

[0067] Reference Figure 7 and Figure 8 The conveying system 2 includes a conveyor belt 21 and a driving mechanism 22 for driving the conveyor belt 21 to convey. The conveyor belt 21 is arranged on the conveyor frame 1 and multiple conveyor belts are arranged in parallel. Each conveyor belt 21 can jointly transfer the cigarette box packaging paper on the conveyor frame 1 to the end of the conveyor frame 1 near the lifting frame 11.

[0068] The driving mechanism 22 includes a driving motor, a power transmission shaft, a rotating roller, a driven roller, a synchronous pulley set and a tensioning device. Since this part is a conventional technology well known to those skilled in the art, its implementation principle will not be described here in detail.

[0069] Reference Figure 3 and Figure 9 A lifting mechanism 9 is also provided inside the conveyor frame 1. The lifting end of the lifting mechanism 9 can pass through the gap between adjacent conveyor belts 21 during the lifting process. The lifting mechanism 9 includes a lifting cylinder 91, a fixed plate 92, and a lifting block 93. There are multiple lifting cylinders 91, and the fixed plate 92 is fixedly connected to the telescopic end of each lifting cylinder 91. There are multiple lifting blocks 93 provided in parallel and are all fixed to the side of the fixed plate 92 away from the lifting cylinder 91.

[0070] Reference Figure 2 and Figure 4The lifting mechanism 4 includes a lifting cylinder 41, a lifting plate 42, a lifting platform 43 and a limit plate 44. The lifting cylinder 41 is vertically installed on the lifting frame 11. The lifting plate 42 is fixed to the telescopic end of the lifting cylinder 41. The lifting platform 43 is slidably sleeved on the telescopic end of the lifting cylinder 41, and there is friction damping between the lifting platform 43 and the telescopic end of the lifting cylinder 41. A plurality of rollers are rotatably installed on the top of the lifting platform 43 for transporting the cigarette box packaging cardboard placed on the lifting platform 43;

[0071] Reference Figure 4 The limit plate 44 is vertically arranged in the lifting frame 11 and is fixed to the end of the conveying frame 1. A lifting rail 441 is provided on the limit plate 44 corresponding to the lifting platform 43. The lifting platform 43 partially passes through the lifting rail 441 and extends to the other side of the limit plate 44. When the lifting cylinder 41 drives the lifting platform 43 to move to the two ends of the lifting rail 441, the lifting plate 42 can extend out of the upper surface of the lifting platform 43 or be retracted from above the lifting platform 43 to be flush with the upper surface of the lifting platform 43.

[0072] Reference Figure 3 and Figure 4 The stacking mechanism 5 includes a stacking cylinder 51 and a stacking plate 52. The stacking cylinder 51 is fixed on the lifting frame 11, and the telescopic end can move in the horizontal direction. The stacking plate 52 is fixed to the telescopic end of the stacking cylinder 51, and the length direction of the stacking plate 52 extends in the vertical direction. When the stacking plate 52 moves the cigarette box packaging cardboard from the lifting platform 43 passing through the lifting track 441 to the lifting plate 42, the lifting cylinder 41 can drive the lifting plate 42 to rise and fall, and the stacking plate 52 stacks the lifted cigarette box packaging cardboard to different heights.

[0073] The implementation principle of the stacking and conveying equipment for packaging box production in the embodiment of the present application is as follows: when the cigarette box packaging cardboard is horizontally conveyed to the end of the lifting frame 11 through the conveying system 2, the lifting mechanism 9 lifts the cigarette box packaging cardboard from the gap of the conveyor belt 21 and separates it from the conveying surface to form a hovering state.

[0074] The first telescopic member 31 of the correction mechanism 3 pushes the mounting plate 32 to move laterally, triggering the unlocking component 8 to drive the straightening mechanism 6 to work: first, the wedge-shaped surface of the push block 82 pushes the extension plate 62 to both sides to extend to the width of the end of the cigarette box packaging paper, and then the pulling rope 83 releases the torsion spring 7 constraint to cause the push plate 63 to rotate and expand to form a complete push surface.

[0075] At this time, the pushing plate 63 simultaneously completes two actions: one is to push the end of the cigarette box packaging paper to achieve position correction, and the other is to completely push the overhanging edge corner to be coplanar with the side wall of the cigarette box packaging paper.

[0076] When the correction of the cigarette box packaging paper jam is completed, the first telescopic member 31 drives the mounting plate 32 to reset and finally leaves the end of the cigarette box packaging paper jam. During the reset process, the first elastic member and the second elastic member respectively drive the extension plate 62 to retract into the mounting tube 61 and drive the push plate 63 to rotate to a position parallel to the fixed rod.

[0077] The lifting cylinder 41 rises, lifting the cigarette packaging cardboard that has moved to the end of the conveyor belt 21 and separating it from the surface of the conveyor belt 21. At this time, the lifting cylinder 41 continues to rise, driving the cigarette packaging cardboard to the stacking height. After rising to the stacking height, the lifting cylinder 41 stops rising, and the stacking cylinder 51 pushes the stacking plate 52, so that the stacking plate 52 pushes the cigarette packaging cardboard on the lifting platform 43 onto the lifting plate 42;

[0078] If the stacking height is reached, the stacking plate 52 pushes the cigarette box packaging cardboard out of the lifting frame 11 and stacks it to the height to be stacked. If the stacking height is not reached, the lifting cylinder 41 continues to rise. At this time, if the lifting plate 42 and the lifting platform 43 reach the end of the lifting track 441, the lifting platform 43 is limited at this moment, and the lifting plate 42 continues to rise under the drive of the lifting cylinder 41, lifting the cigarette box packaging cardboard to the stacking height, and finally the stacking plate 52 pushes the cigarette box packaging cardboard to the stacking position.

[0079] After stacking, the lifting cylinder 41 descends, causing the lifting plate 42 and the lifting platform 43 to descend to the lowest end of the lifting track 441. At this time, the lifting platform 43 is limited. Driven by the continued descent of the lifting cylinder 41, the lifting plate 42 continues to descend, so that the lifting plate 42 returns to the height flush with the lifting platform 43 again, making it convenient to stack the next cigarette box packaging cardboard.

[0080] Example 2:

[0081] The difference between Example 2 and Example 1 is that the wedge-shaped inclined surface of the wedge block is set as a wedge-shaped inclined plate with a variable angle. Specifically:

[0082] The push block 82 is hollow, and the two wedge-shaped inclined surfaces of the push block 82 are two movably arranged wedge-shaped inclined panels. Specifically, the two wedge-shaped inclined panels are rotatably installed on the push block 82 at one end close to the connecting rod 81. An electric push rod 822 is provided in the push block 82, and the electric push rod 822 is fixedly installed in the push block 82. A connecting rod 823 is provided at the end of the output shaft of the electric push rod 822.

[0083] The inner walls of the two wedge-shaped inclined panels, where they meet, are provided with latching blocks 824 along their lengths. Connecting blocks 825 are rotatably mounted at both ends of the connecting rod 823, and the two connecting blocks 825 slidably engage with the corresponding latching blocks 824. When the electric push rod 822 is extended or retracted, the surfaces of the two wedge-shaped inclined panels rotate, thereby adjusting the extended angle of the push plate 63 and thereby straightening the edge angles of the paperboard ends of different cigarette packs.

[0084] The working principle of Example 2 is as follows: When a micromotor drives the screw to rotate, it cooperates with the threads of the adjustment rod to convert the rotational motion into linear displacement. The clamping blocks 825 at each end of the adjustment rod slide along the slots in the wedge-shaped bevel plates, forcing the two wedge-shaped bevel plates to rotate synchronously about the axis. This mechanical linkage enables stepless adjustment of the working angle of the wedge-shaped bevel plates over a wide range, thereby precisely adapting to the differences in overhang angles of the edge corners of different cigarette box models.

[0085] When the micro motor drives the wedge-shaped inclined plate to rotate to the target angle, the vector direction of the inclined push extension plate 62 changes accordingly, ensuring that the push plate 63 always covers the overhanging section of the edge corner with vertical pressure after it is unfolded, completely eliminating the defects of local wrinkling caused by the tilt of the edge corner or the subsequent inability to pack the box due to the misalignment and pressing of the edge corner.

[0086] The above are all optional embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A stacking and conveying device for packaging box production, characterized by: It comprises a conveying frame (1) and a lifting frame (11) fixed to one end of the conveying frame (1) and extending in a vertical direction, wherein a conveying system (2) for conveying cigarette box packaging paper is provided on the conveying frame (1) along the length direction; The lifting frame (11) is provided with a correction mechanism (3) for correcting the position of the cigarette packing paper jam at one end close to the conveying frame (1), and the lifting frame (11) is provided with a lifting mechanism (4) for vertically lifting the cigarette packing paper jam after correction at the end of the conveying system (2), and a stacking mechanism (5) for stacking the lifted cigarette packing paper jam; The correction end of the correction mechanism (3) is provided with a straightening mechanism (6) for straightening the edge angle of the end of the cigarette box packaging paper; The correction mechanism (3) comprises a first telescopic member (31) and a mounting plate (32) arranged at the telescopic end of the first telescopic member (31), the telescopic direction of the first telescopic member (31) being perpendicular to the conveying direction of the conveying system (2), and the straightening mechanism (6) being arranged on the mounting plate (32); The straightening mechanism (6) comprises a fixing rod, a mounting tube (61), an extension plate (62), a push plate (63), a telescopic limiting assembly, a rotation limiting assembly and an unlocking assembly (8); the fixing rod is mounted on the mounting plate (32); and the peripheral wall of the mounting tube (61) is fixedly connected to the end of the fixing rod away from the mounting plate (32); Two extension plates (62) are provided, and the two extension plates (62) are respectively slidably inserted into the two ports of the installation tube (61). Two sets of telescopic limiting components and rotation limiting components are provided corresponding to the two extension plates (62). The telescopic limiting components are used to make the two extension plates (62) retract into the two ports of the installation tube (61). Two push plates (63) are provided corresponding to the two extension plates (62), and the ends of the two push plates (63) are respectively rotatably mounted on the ends of the corresponding extension plates (62) extending out of the mounting tube (61), and the rotation limiting assembly is used to limit the corresponding push plates (63) to a position parallel to the fixing rod; The unlocking assembly (8) is used to cause the two extension plates (62) to first extend to a length matching the length of the cigarette box packaging paper jam port when the first telescopic member (31) is extended, and then cause the two push plates (63) to rotate to a position where the edge corners are pushed to a position flush with the cigarette box packaging paper jam.

2. The stacking and conveying equipment for packaging box production according to claim 1, characterized in that: The telescopic limiting assembly includes a first elastic member arranged in the mounting tube (61), the two first elastic members are used to move the two extension plates (62) in a direction toward each other, and the unlocking assembly (8) is used to overcome the elastic force of the two first elastic members and push the two extension plates (62) in a direction away from each other.

3. The stacking and conveying equipment for packaging box production according to claim 1, characterized in that: The rotation limiting assembly includes a torsion spring (7) arranged at the rotation position of the push plate (63) and the extension plate (62), and the torsion spring (7) is used to rotate the push plate (63) away from the end of the extension plate (62) in a direction away from the fixing rod.

4. The stacking and conveying equipment for packaging box production according to claim 3, characterized in that: The unlocking assembly (8) includes a connecting rod (81), a push block (82), a pulling rope (83), a pull rod (84) and a second elastic member, the connecting rod (81) is fixed on the lifting frame (11), the push block (82) is fixedly installed on the connecting rod (81), and the two side walls are set to wedge-shaped inclined surfaces, the mounting tube (61) is provided with a through groove for the push block (82) to extend into the mounting tube (61), and the ends of the two extension plates (62) close to each other are set to be adapted wedge-shaped inclined surfaces corresponding to the wedge-shaped inclined surfaces of the push block (82), and when there is relative displacement between the push block (82) and the ends of the two extension plates (62), the push block (82) can push the two extension plates (62) to move away from each other; The pulling rope (83) is wound around the rotating shaft of the push plate (63), the pulling rod (84) is fixedly connected to the end of the pulling rope (83), and is slidably installed in the extension plate (62) and the end thereof extends out of the wedge-shaped inclined surface of the extension plate (62), the second elastic member is arranged in the extension plate (62), and can overcome the torsion of the torsion spring (7) to pull the push plate (63) to a position parallel to the fixed rod.

5. The stacking and conveying equipment for packaging box production according to claim 1, characterized in that: The conveying system (2) comprises a conveyor belt (21) and a driving mechanism (22) for driving the conveyor belt (21) to convey. The conveyor belt (21) is arranged on the conveyor frame (1) and a plurality of conveyor belts are arranged in parallel. Each of the conveyor belts (21) can jointly transfer the cigarette box packaging paper on the conveyor frame (1) to the end of the conveyor frame (1) close to the lifting frame (11).

6. The stacking and conveying equipment for packaging box production according to claim 5, characterized in that: A lifting mechanism (9) is also provided inside the conveying frame (1), and the lifting end of the lifting mechanism (9) can pass through the gap between adjacent conveyor belts (21) during the lifting process.

7. The stacking and conveying equipment for packaging box production according to claim 1, characterized in that: The lifting mechanism (4) includes a lifting cylinder (41), a lifting plate (42), a lifting platform (43) and a limiting plate (44); the lifting cylinder (41) is vertically mounted on the lifting frame (11); the lifting plate (42) is fixed to the telescopic end of the lifting cylinder (41); the lifting platform (43) is slidably sleeved on the telescopic end of the lifting cylinder (41); and there is friction damping between the lifting platform (43) and the telescopic end of the lifting cylinder (41); and a plurality of rollers for conveying cigarette box packaging paper placed on the lifting platform (43) are rotatably mounted on the top of the lifting platform (43); The limiting plate (44) is vertically arranged in the lifting frame (11) and is fixedly abutted against the end of the conveying frame (1). A lifting track (441) is provided on the limiting plate (44) corresponding to the lifting platform (43). The lifting platform (43) partially passes through the lifting track (441) and extends to the other side of the limiting plate (44). When the lifting cylinder (41) drives the lifting platform (43) to move to the two ends of the lifting track (441), the lifting plate (42) can extend from the upper surface of the lifting platform (43) or be retracted from above the lifting platform (43) to be flush with the upper surface of the lifting platform (43).

8. The stacking and conveying equipment for packaging box production according to claim 7, characterized in that: The stacking mechanism (5) comprises a stacking cylinder (51) and a stacking plate (52). The stacking cylinder (51) is fixed on the lifting frame (11), and the telescopic end thereof can move in the horizontal direction. The stacking plate (52) is fixed to the telescopic end of the stacking cylinder (51), and the length direction of the stacking plate (52) extends in the vertical direction. When the stacking plate (52) moves the cigarette box packaging paper from the lifting platform (43) passing through the lifting track (441) to the lifting plate (42), the lifting cylinder (41) can drive the lifting plate (42) to rise and fall, and the stacking plate (52) stacks the cigarette box packaging paper to different heights after being lifted.

Images