Carton pressing mechanism and method, packaging machine and production line

Abstract

The invention discloses a carton pressing mechanism, a packaging machine and a production line. The carton pressing mechanism comprises a frame assembly, a first carton pressing assembly, an upper folding assembly and a second carton pressing assembly. The first box pressing assembly, the upper folding assembly and the second box pressing assembly are sequentially arranged on the frame assembly in the conveying direction, and the first box pressing assembly is used for tongue beating of tongue beating hinges of a carton and upper hinge forming of the carton; the upper folding assembly is used for pre-folding side upper hinges of the carton; the second carton pressing assembly is used for assisting side hinge forming and forming of side upper hinges of the carton. Tongue hinge glue spraying, tongue hinge tongue beating and upper hinge box pressing forming are completed through the first box pressing assembly in the front station, side upper hinges are pre-folded through transition of the upper folding assembly, side upper hinge forming and auxiliary side hinge box pressing forming are completed through the second box pressing assembly in the rear station, the problem that glue is air-dried is solved, and the production efficiency is improved. Adjustment after carton specification replacement before packaging and adjustment in the packaging process are facilitated, and therefore the carton packaging quality is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of packaging machines, and in particular to a carton pressing mechanism, method, packaging machine and production line. Background Art

[0002] In the fields of express delivery and cargo packaging, in order to transport items safely and conveniently, cardboard is usually used to package various items to meet the needs of item delivery.

[0003] For example, in a production line, the paper packaging of materials is completed through several processes such as material conveying, material bottle separation, material falling, paper conveying, material and paper combination, and carton forming. In the carton forming process of the drop-type paper packaging machine in the related art, carton forming can be divided into several processes, which can be roughly divided into box forming, hinge pre-folding and box pressing forming.

[0004] Most of the box pressing process is two-station forming, and the two-station forming process includes tongue-pressing page glue spraying, tongue-pressing page tongue-punching, upper hinge box pressing forming, side upper hinge forming, auxiliary side hinge forming, etc. Among them, the mechanism used in the box pressing forming process can be called a carton box pressing mechanism; the carton box pressing mechanism basically completes the tongue-pressing page glue spraying and tongue-punching in the front station, and completes the upper hinge box pressing forming, side upper hinge forming and auxiliary side hinge forming in the back station. Such a step distribution is not convenient for adjustment after changing the carton specifications, and the mechanical movement stability is poor. Moreover, when the paper packaging machine needs to be temporarily stopped, if there is a carton in the front station and the tongue-pressing page has been glued, it is easy to cause the upper hinge box pressing forming in the back station to not stick tightly. Summary of the invention

[0005] The purpose of the present application is to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a carton pressing mechanism, which completes the gluing of the tongue page, tongue punching of the tongue page and the pressing and forming of the upper hinge in the front station, and completes the forming of the upper side hinge and the auxiliary side hinge in the rear station, thereby avoiding the problem of glue drying and facilitating adjustment after changing the carton specifications.

[0006] The application also proposes a carton pressing method.

[0007] The present application also proposes a packaging machine including the above-mentioned carton pressing mechanism.

[0008] The application also proposes a production line including the above packaging machine.

[0009] The carton pressing mechanism according to the first aspect of the present application includes:

[0010] Frame components;

[0011] A first box pressing assembly, arranged on the frame assembly, the first box pressing assembly is used for punching the punching leaf of the carton and forming the upper hinge of the carton;

[0012] An upper folding assembly is arranged on the frame assembly, and is arranged downstream of the first box pressing assembly along the conveying direction, and is used to pre-fold the upper side hinges of the carton;

[0013] The second pressing box assembly is arranged on the frame assembly. The second pressing box assembly is arranged downstream of the upper folding assembly along the conveying direction. The second pressing box assembly is used to assist in the forming of the side hinges and the forming of the upper side hinges of the carton.

[0014] The carton pressing mechanism according to the first aspect embodiment of the present application has at least the following beneficial effects: the tongue page spraying, tongue punching and upper hinge pressing and forming are completed by placing the first box pressing assembly in the front station, and the upper side hinge is pre-folded through the transition of the upper folding assembly, and the upper side hinge forming and auxiliary side hinge are completed by the second box pressing assembly in the rear station, thereby avoiding the problem of glue drying, and facilitating the adjustment after changing the carton specifications before packaging, as well as the adjustment during packaging, thereby ensuring the quality of carton packaging.

[0015] According to the carton pressing mechanism described in the first embodiment of the present application, the first carton pressing assembly includes a first cylinder component, a tongue-punching connecting rod shaft, a first carton pressing plate, a first bending carton protection plate, a tongue-punching mounting plate and a tongue-punching slider;

[0016] The first cylinder component is arranged on the frame assembly, the first box pressing plate is used for box pressing and forming of the upper hinge, and the first cylinder component is connected to the first box pressing plate and is used to drive the first box pressing plate to move;

[0017] The tongue-beating connecting rod shaft is rotatably arranged on the first box-pressing plate around an axis, a tongue-beating plate is arranged on the circumferential side wall of the tongue-beating connecting rod shaft, and the first bending box-protecting plate is arranged on the first box-pressing plate and is used to protect the front side of the carton when the upper hinge is formed;

[0018] The tongue-beating mounting plate is arranged on the frame assembly, and a tongue-beating slide groove is provided on the tongue-beating mounting plate. The tongue-beating slider is connected to one end of the tongue-beating connecting rod shaft and is slidably arranged in the tongue-beating slide groove, so that when the tongue-beating connecting rod shaft is driven by the first cylinder component, the tongue-beating slider can slide along the track of the tongue-beating slide groove, and the tongue-beating slider can drive the tongue-beating connecting rod shaft to rotate when it slides to a preset position in the tongue-beating slide groove.

[0019] According to the carton pressing mechanism described in the first aspect of the embodiment of the present application, the first carton pressing assembly includes a first width adjusting component and a second carton pressing plate, the second carton pressing plate and the first carton pressing plate are arranged at intervals along the conveying direction, the first width adjusting component connects the second carton pressing plate and the first carton pressing plate respectively, so that the second carton pressing plate and the first carton pressing plate can move synchronously driven by the first cylinder component, and the first width adjusting component is used to drive the second carton pressing plate and the first carton pressing plate to be relatively close to or away from each other along the conveying direction.

[0020] According to the carton pressing mechanism described in the first aspect of the present application, the second carton pressing assembly includes a second cylinder, a third carton pressing plate, a corner pressing block, a second bending carton protection plate, a second width adjusting component and a fourth carton pressing plate;

[0021] The second cylinder is arranged on the frame assembly, the third box pressing plate is used for pressing the box, and the second cylinder component is connected to the third box pressing plate and is used to drive the third box pressing plate to move;

[0022] The third press box plate and the fourth press box plate are arranged at intervals along the conveying direction, and the second width adjustment component is connected to the third press box plate and the fourth press box plate respectively, so that the third press box plate and the fourth press box plate can be driven by the second cylinder component to move synchronously, and the second width adjustment component is used to drive the third press box plate and the fourth press box plate to be relatively close to or away from each other along the conveying direction;

[0023] The third box pressing plate is provided with a plurality of installation positions, the corner pressing block is used to assist in pressing the upper hinge and the tongue leaf, the second bending box protection plate is used to assist in the forming of the side hinge and the upper side hinge of the carton, and the corner pressing block and the second bending box protection plate are respectively detachably arranged on one of the installation positions.

[0024] According to the carton pressing mechanism described in the embodiment of the first aspect of the present application, the frame assembly includes an upper mounting plate, a lifting screw component, a lower mounting plate, a sprocket chain component, a drag chain component and a handwheel, the upper mounting plate and the lower mounting plate are relatively spaced apart in the longitudinal direction, the lifting screw component is used to drive the lower mounting plate to move relative to the upper mounting plate in the longitudinal direction, the handwheel drives the lifting screw component through the sprocket chain component, and the drag chain component is arranged on the upper mounting plate.

[0025] According to the carton pressing mechanism described in the first aspect embodiment of the present application, the upper folding assembly includes an upper folding guide mounting plate, an upper folding guide bracket, an upper folding width adjustment screw component and an upper folding plate component, the upper folding guide mounting plate is arranged on the frame assembly, the upper folding guide bracket is arranged in pairs on the upper folding guide, the two pairs of the upper folding guide brackets are arranged at intervals in a horizontal direction perpendicular to the conveying direction, the upper folding width adjustment screw component is respectively passed through the two pairs of the upper folding guide brackets, so that the upper folding width adjustment screw component can be used to drive each pair of the upper folding guide brackets to be relatively close or relatively far away, the upper folding plate component is arranged on the upper folding width adjustment screw component, and the upper folding plate component is provided with a bending round rod for contacting the side upper hinge of the carton and pre-folding.

[0026] According to the carton pressing mechanism described in the embodiment of the first aspect of the present application, the frame assembly is further provided with a glue spraying assembly, and the glue spraying assembly is used to spray glue on the punching flap;

[0027] The glue spraying assembly includes a glue spraying mounting bracket, a glue spraying shaft, a glue gun group, a glue spraying connecting rod and a glue spraying cylinder component. The glue spraying mounting bracket is arranged on the frame assembly, and the glue spraying shaft can be rotatably arranged on the glue spraying mounting bracket around an axis. The glue gun group is arranged on the circumferential side wall of the glue spraying shaft, and the glue spraying cylinder component is arranged on the glue spraying mounting bracket. The glue spraying cylinder component is connected to the glue spraying shaft through the glue spraying connecting rod, and the glue spraying cylinder component is used to drive the glue spraying shaft to rotate so as to adjust the output angle of the glue gun group.

[0028] The carton pressing method according to the second aspect of the present application comprises the following steps:

[0029] The carton is transported along the transport direction to the position of the frame assembly and passes through the first station and the second station in sequence;

[0030] When the carton arrives at the first station, the tongue-punching pages of the carton are sprayed with glue, and the first box pressing assembly punches the tongue-punching pages of the carton and presses the upper hinge of the carton into shape;

[0031] The carton passes through the upper folding assembly while being transported from the first station to the second station, and the upper folding assembly pre-folds the upper side hinges of the carton;

[0032] When the carton arrives at the second station, the second box pressing assembly assists in the forming of the side hinges and performs box pressing to form the upper side hinges of the carton.

[0033] The packaging machine according to the third aspect embodiment of the present application includes: the carton pressing mechanism as described in the first aspect embodiment of the present application.

[0034] The production line according to the fourth aspect embodiment of the present application includes: the packaging machine as described in the third aspect embodiment of the present application.

[0035] It is not difficult to understand that the carton pressing method in the second aspect embodiment of the present application, the packaging machine in the third aspect embodiment of the present application and the production line in the fourth aspect embodiment of the present application all have the technical effects of the carton pressing mechanism in the first aspect embodiment described above, and therefore will not be elaborated upon.

[0036] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The present application is further described below with reference to the accompanying drawings and embodiments;

[0038] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application;

[0039] Figure 2 A schematic diagram of a frame assembly in an embodiment of the present application;

[0040] Figure 3 This is a schematic diagram of the first press box assembly in an embodiment of the present application;

[0041] Figure 4 This is a schematic diagram of an upper folding assembly in an embodiment of the present application;

[0042] Figure 5 This is a schematic diagram of the second press box assembly in the embodiment of the present application;

[0043] Figure 6 This is a schematic diagram of a glue spraying assembly in an embodiment of the present application;

[0044] Figure 7 It is a front view of an embodiment of the present application;

[0045] Figure 8 It is a schematic diagram of the tongue-beating slide groove in the embodiment of the present application.

[0046] Reference numerals:

[0047] 100, frame assembly; 110, upper mounting plate; 120, lifting screw component; 130, lower mounting plate; 140, sprocket chain component; 150, drag chain component; 160, hand wheel;

[0048] 200, first box pressing assembly; 210, first cylinder component; 220, tongue-beating connecting rod shaft; 221, tongue-beating plate; 230, first box pressing plate; 240, first bending box guard plate; 250, tongue-beating mounting plate; 251, tongue-beating slide groove; 260, tongue-beating slider; 270, first width adjustment component; 280, second box pressing plate;

[0049] 300, upper folding assembly; 310, upper folding guide plate mounting plate; 320, upper folding guide plate bracket; 330, upper folding width adjustment screw component; 340, upper folding plate component; 341, bent round rod;

[0050] 400, second box pressing assembly; 410, second cylinder; 420, third box pressing plate; 421, mounting position; 430, corner pressing block; 440, second bending box guard plate; 450, second width adjustment component; 460, fourth box pressing plate;

[0051] 500, glue spraying assembly; 510, glue spraying mounting bracket; 520, glue spraying shaft; 530, glue gun assembly; 540, glue spraying connecting rod; 550, glue spraying cylinder component. DETAILED DESCRIPTION

[0052] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0053] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0054] In the description of this application, "several" means one or more, "more" means at least two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0055] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application after combining the specific content of the technical solution.

[0056] Reference Figures 1 to 8 The carton pressing mechanism of the first embodiment of the present application is used for the steps of spraying glue on the tongue pages, tongue punching on the tongue pages, pressing and molding the upper hinges, molding the upper side hinges, and molding the auxiliary side hinges. The carton pressing mechanism includes a frame assembly 100, a first pressing assembly 200, an upper folding assembly 300, and a second pressing assembly 400.

[0057] The first press box assembly 200 is arranged on the frame assembly 100, and the first press box assembly 200 is used for punching the tongue of the carton and forming the upper hinge of the carton; the upper folding assembly 300 is arranged on the frame assembly 100, and the folding assembly 300 is arranged downstream of the first press box assembly 200 along the conveying direction, and the upper folding assembly 300 is used for pre-folding the upper side hinge of the carton; the second press box assembly 400 is arranged on the frame assembly 100, and the second press box assembly 400 is arranged downstream of the upper folding assembly 300 along the conveying direction, and the second press box assembly 400 is used for assisting the side hinge forming and forming the upper side hinge of the carton.

[0058] It can be understood that the tongue-punching leaf spraying, tongue-punching and upper hinge box pressing and forming are completed by placing the first box pressing assembly 200 in the front station, and the upper side hinge is pre-folded through the transition of the upper folding leaf assembly 300, and the upper side hinge forming and auxiliary side hinge are completed by the second box pressing assembly 400 in the rear station, thereby avoiding the problem of glue drying, and facilitating the adjustment after changing the carton specifications before packaging and the adjustment during packaging, thereby ensuring the quality of carton packaging.

[0059] In some embodiments of the present application, the first pressing box assembly 200 includes a first cylinder component 210, a tongue-beating connecting rod shaft 220, a first pressing box plate 230, a first bending box guard plate 240, a tongue-beating mounting plate 250 and a tongue-beating slider 260; the first cylinder component 210 is arranged on the frame assembly 100, the first pressing box plate 230 is used for the pressing box forming of the upper hinge, the first cylinder component 210 is connected to the first pressing box plate 230 and is used to drive the first pressing box plate 230 to move; the tongue-beating connecting rod shaft 220 is rotatably arranged on the first pressing box plate 230 around the axis, and the tongue-beating plate 220 is provided on the circumferential side wall of the tongue-beating connecting rod shaft 220. 1. The first bending box protection plate 240 is arranged on the first box pressing plate 230 and is used to protect the front side of the carton when the upper hinge is formed; the tongue-beating mounting plate 250 is arranged on the frame assembly 100, and a tongue-beating slide groove 251 is provided on the tongue-beating mounting plate 250. The tongue-beating slider 260 is connected to one end of the tongue-beating connecting rod shaft 220 and is slidably arranged in the tongue-beating slide groove 251, so that when the tongue-beating connecting rod shaft 220 is driven by the first cylinder component 210, the tongue-beating slider 260 can slide along the track of the tongue-beating slide groove 251, and the tongue-beating slider 260 can drive the tongue-beating connecting rod shaft 220 to rotate when it slides to a preset position in the tongue-beating slide groove 251.It can be understood that a workstation is aligned below the first box pressing component 200. When a carton comes from the front workstation, the front side, rear side, side hinge, side lower hinge and upper hinge of the carton have been pre-folded in sequence. At this workstation, the tongue punching leaf needs to be tongued and the upper hinge needs to be hinged. After the carton is in place, the front side is straightened by the other components in the paper packaging machine and the tongue punching leaf is sprayed with glue. After the glue spraying is completed, the first cylinder component 210 extends out, driving the first box pressing plate 230 to descend. The first box pressing plate 230 descends. During the process, it first contacts the pre-folded upper hinge and then gradually presses down; during the descending process of the first pressing box plate 230, the tongue-beating connecting rod shaft 220 is brought down with it, and the tongue-beating slider 260 at one end of the tongue-beating connecting rod shaft 220 moves along the inner slide track of the tongue-beating slide groove 251. Because the vertical movement track of the central axis of the tongue-beating connecting rod shaft 220 is inconsistent with the inner slide track of the tongue-beating slide groove 251, the tongue-beating slider 260 rotates a certain angle when passing the inner corner of the tongue-beating slide groove 251 and then returns to the center, driving the tongue-beating connecting rod shaft 220 to rotate After moving a certain angle, it returns to the center, and the tongue-beating plate 221 welded on the tongue-beating connecting rod shaft 220 moves in the normal direction until it just hits the tongue-beating leaf and quickly returns to the center; during the descending process of the first box pressing plate 230, when the tongue-beating plate 221 hits the tongue-beating leaf, the position of the first box pressing plate 230 should be close to or in contact with the tongue-beating leaf, at this time, the upper hinge contacts the pre-folded tongue-beating leaf and continues to descend, the tongue-beating connecting rod shaft 220 quickly returns to the center, and the upper hinge covers the tongue-beating leaf and is glued together until the first box pressing plate 230 descends to the lowest point; When a box pressing plate 230 drops to the lowest point, the first box pressing plate 230 presses the upper hinge and the tongue leaf of the carton, the first bending box guard plate 240 protects the front side of the carton, the second box pressing plate 280 protects the rear side of the carton, and the second box pressing plate 280 presses the rear part of the upper hinge of the carton; after a certain period of time, the first cylinder component 210 is retracted, the upper hinge and the tongue leaf should have been bonded, that is, they will not rebound, and the first box pressing plate 230 can return to the highest point, waiting for the formed carton to be transported to the rear station and the carton to be input into the front station.

[0060] In some embodiments of the present application, the first box pressing assembly 200 includes a first width adjustment component 270 and a second box pressing plate 280, the second box pressing plate 280 and the first box pressing plate 230 are arranged at intervals along the conveying direction, the first width adjustment component 270 connects the second box pressing plate 280 and the first box pressing plate 230 respectively, so that the second box pressing plate 280 and the first box pressing plate 230 can be driven by the first cylinder component 210 to move synchronously, and the first width adjustment component 270 is used to drive the second box pressing plate 280 and the first box pressing plate 230 to be relatively close to or away from each other along the conveying direction. It can be understood that when changing the carton specifications of different widths, the first bending box guard plate 240 is used for positioning, and the position remains unchanged, and the position of the second box pressing plate 280 needs to be adjusted; the second box pressing plate 280 can be driven by the first width adjustment component 270 to adjust forward and backward. In some embodiments, the first width adjustment component 270 includes a press box width adjustment screw, a hand wheel 160 and a press box width adjustment support block. The hand wheel 160 at one end of the press box width adjustment screw is rotated to rotate it, driving the press box width adjustment support block to move forward and backward, thereby driving the second press box plate 280 to adjust forward and backward.

[0061] In some embodiments, the first press box assembly 200 includes: a front section press box cylinder, an extended shaft of the front section press box cylinder, a front section press box guide rod, a front section press box cylinder connecting plate, a seat bearing, a tongue-beating connecting rod shaft 220, a front section press box plate, a front section bending box protection plate, a tongue-beating slide 251 mounting block, a tongue-beating slide 251 mounting plate, a tongue-beating slide 251, a tongue-beating slide 251 box protection plate, a tongue-beating connecting rod block, a tongue-beating slider 260, a press box width adjustment screw bracket, a press box width adjustment screw, a press box width adjustment guide rod, a press box screw connecting block, a press box width adjustment support block, a press box rear box protection plate and a press box rear press plate; the front section press box cylinder is fixedly mounted on the front end above the press box lower mounting plate 130 by screw locking, and the front section press box cylinder extended shaft is fixedly mounted on the front end above the press box lower mounting plate 130 by screw locking, and the front section press box cylinder extended shaft is fixedly mounted on the front end above the press box lower mounting plate 130 by screw locking, and the front section press box cylinder extended shaft is fixedly mounted on the front end above the press box lower mounting plate 130 by screw locking, and the front section press box cylinder extended shaft is fixedly mounted on the front end above the press box lower mounting plate 130 by screw locking, and the front section press box cylinder extended shaft is fixedly mounted on the front end above the press box lower mounting plate 130 by screw locking, and the front section press box cylinder extended shaft is fixedly mounted on the front end above the press box lower mounting plate Installed under the front-section pressure box cylinder, used to extend the offset cylinder shaft; a linear bearing is installed on the lower mounting plate 130 of the pressure box, and the front-section pressure box guide rod passes through the linear bearing on the lower mounting plate 130 of the pressure box, and the lower end is connected to the front-section pressure box cylinder connecting plate through a threaded screw hole for guiding; the front-section pressure box cylinder connecting plate is connected to the lower side of the front-section pressure box cylinder extension shaft through a threaded screw hole; the seat bearing is fixedly installed on both sides above the front-section pressure box plate by screw locking, and the tongue-beating connecting rod shaft 220 passes through the seat bearings on both sides and can rotate along the central axis of the seat bearing, a retaining spring is installed on the shaft for limiting, and a tongue-beating plate 221 is welded on the shaft for tongue-beating action; the front-section pressure box plate is fixedly installed under the front-section pressure box cylinder connecting plate by screw locking, Used to install the remaining parts and press boxes; the front section bending box protection plate is fixedly installed in front of the front section press box plate by screw locking, and is used to protect the front side of the carton when the upper hinge press box is formed; the tongue-beating slide 251 mounting block is fixedly installed under the upper mounting plate 110 of the press box by screw locking, the tongue-beating slide 251 mounting plate is fixedly installed on the side of the tongue-beating slide 251 mounting block by screw locking, the tongue-beating slide 251 is fixedly installed on the inner side of the tongue-beating slide 251 mounting plate by screw locking, the slide faces inward, the tongue-beating slide 251 box protection plate is fixedly installed on one side of the tongue-beating slide 251 by screw locking, the tongue-beating connecting rod block is fixedly installed at one end of the tongue-beating connecting rod shaft 220 by screw locking, and the tongue-beating slider 260 is fixedly installed by screw locking. The threaded screw hole is fixedly installed on the tongue-beating connecting rod block, and the outer circle of the tongue-beating slider 260 is located in the inner groove of the tongue-beating slide groove 251, and the whole is used for performing the tongue-beating leaf forming action when the upper hinge is formed; the press box width adjustment screw bracket is fixedly installed on the upper rear of the front section press box plate by screw locking, and the press box width adjustment guide rod is fixedly installed on both sides above the front section press box cylinder connecting plate by screw locking, and the press box screw connecting block is fixedly installed on one end of the press box width adjustment guide rod on both sides by screw locking, and the press box width adjustment screw is installed between the press box width adjustment screw bracket and the press box screw connecting block, and copper sleeves are installed at both ends of the shaft, and a hand wheel 160 is installed at one end of the shaft for rotation; the press box width adjustment support block is installed on the press box width adjustment guide rods on both sides, and the middle screw hole is connected to the press box width adjustment screw;The rear box guard plate of the press box is provided with a through hole, and the rear pressing plate of the press box is provided with a screw hole, and the two are connected by screw locking. The rear pressing plate of the press box is located at the lower inner side of the rear box guard plate of the press box, and the rear pressing plate of the press box is fixedly installed under the width adjustment support block of the press box by screw locking. ;

[0062] In some embodiments of the present application, the second box pressing assembly 400 includes a second cylinder 410, a third box pressing plate 420, a corner pressing block 430, a second bending box guard plate 440, a second width adjustment component 450 and a fourth box pressing plate 460; the second cylinder 410 is arranged on the frame assembly 100, the third box pressing plate 420 is used for box pressing, and the second cylinder 410 component is connected to the third box pressing plate 420 and is used to drive the third box pressing plate 420 to move; the third box pressing plate 420 and the fourth box pressing plate 460 are arranged at intervals along the conveying direction, and the second width adjustment component 450 is respectively connected to the third box pressing plate 420 and the fourth box pressing plate Plate 460, so that the third box pressing plate 420 and the fourth box pressing plate 460 can be driven by the second cylinder 410 component to move synchronously, and the second width adjusting component 450 is used to drive the third box pressing plate 420 and the fourth box pressing plate 460 to be relatively close to or away from each other along the conveying direction; the third box pressing plate 420 is provided with a plurality of mounting positions 421, the corner pressing block 430 is used to assist in pressing the upper hinge and the tongue leaf, the second bending box guard plate 440 is used to assist in the forming of the side hinge and the forming of the upper side hinge of the carton, and the corner pressing block 430 and the second bending box guard plate 440 are respectively detachably arranged on one of the mounting positions 421. It is understandable that when changing the specifications of cartons with different widths, the position of the corner pressure block 430 needs to be adjusted, and the second bending box protection plate 440 may need to be replaced; the second box pressure plate 280 has multiple screw holes, and the rear corner pressure block 430 can be adjusted to the left and right to install the locking position, and the installation position 421 is adjusted to align the lower box pressure position with the glue spraying position of the tongue page so as to be able to tighten the upper hinge and the tongue page; if the width of the carton is too wide or too narrow, the widened or narrowed second bending box protection plate 440 needs to be replaced so that it can protect the front side of the carton and does not exceed the range of the side hinge.

[0063] In some embodiments, the rear-stage press box assembly includes: a rear-stage press box cylinder, an extended shaft of the rear-stage press box cylinder, a rear-stage press box guide rod, a rear-stage press box cylinder connecting plate, a rear-stage press box plate, a rear-stage corner press block 430, a rear-stage bending box protection plate, a press box width adjustment screw bracket, a press box width adjustment screw, a press box width adjustment guide rod, a press box screw connecting block, a press box width adjustment support block, a press box rear protection box plate and a press box rear pressure plate; the press box width adjustment screw bracket, the press box width adjustment screw, the press box width adjustment guide rod, the press box screw connecting block, the press box width adjustment support block, the press box rear protection box plate and the press box rear pressure plate are consistent with the installation and function of the front-stage press box assembly; the rear-stage press box cylinder is fixedly installed above and behind the lower mounting plate 130 of the press box by screw locking, and the extended shaft of the rear-stage press box cylinder is fixedly installed by threaded screw holes Installed under the rear section press box cylinder, used to extend the offset cylinder shaft; the rear section press box guide rod passes through the linear bearing on the lower mounting plate 130 of the press box, and the lower end is connected to the rear section press box cylinder connecting plate through a threaded screw hole for guiding; the rear section press box cylinder connecting plate is connected to the lower part of the extended axis of the rear section press box cylinder through a threaded screw hole; the rear section press box plate is fixedly installed under the rear section press box cylinder connecting plate by screw locking, and the rear section corner pressure block 430 and the rear section bending box protection plate are fixedly installed above and in front of the rear section press box plate by screw locking; the rear section corner pressure block 430 and the bottom surface of the rear section press box plate are aligned to assist in pressing the upper hinge and tongue leaf; the rear section bending box protection plate is used to protect the front side of the carton to assist in the forming of the side hinge and the forming of the upper side hinge of the carton.

[0064] In some embodiments of the present application, the frame assembly 100 includes an upper mounting plate 110, a lifting screw component 120, a lower mounting plate 130, a sprocket chain component 140, a drag chain component 150 and a hand wheel 160. The upper mounting plate 110 and the lower mounting plate 130 are arranged at intervals in the longitudinal direction. The lifting screw component 120 is used to drive the lower mounting plate 130 to move relative to the upper mounting plate 110 in the longitudinal direction. The hand wheel 160 drives the lifting screw component 120 through the sprocket chain component 140. The drag chain component 150 is arranged on the upper mounting plate 110. It can be understood that when changing the box type of different heights, the height direction position of the lower mounting plate 130 is adjusted by the lifting screw component 120, so that the height direction position of each component arranged on the lower mounting plate 130 can be adjusted synchronously, and the adjustable function of each component itself is matched to adapt to the box type of different specifications.

[0065] In some embodiments, the frame assembly 100 includes: a press box upper mounting plate 110, a press box upper support plate, a press box support shaft, a lifting guide rod, a lifting side plate limit block, a lifting side locking plate, a press box lower mounting plate 130, a lifting screw, a lifting screw sleeve sprocket, a lifting screw sleeve, a lifting bearing seat, a lifting handwheel 160 mounting plate, a lifting handwheel 160 sprocket, a lifting handwheel 160 shaft, a lifting handwheel 160 bearing seat, a lifting handwheel 160, a lifting chain, a lifting chain idler wheel block, a tank chain mounting bracket, a tank chain, a tank chain mounting bent plate and a tank chain mounting support plate; the press box upper mounting plate 110 is fixedly installed on the upper part of the paper packaging machine frame by screw locking, for installing the remaining components; the press box upper support plate is fixedly installed by screw locking At the lower front of the press box upper mounting plate 110, the press box support shaft is fixedly installed at the lower sides of the press box upper support plate by screw locking, and the lower end of the shaft is connected to the side plane plate of the paper bag machine by screw locking, which is used to support / reinforce the press box upper mounting plate 110; a linear bearing is installed on the press box upper mounting plate 110; the lifting guide rod passes through the linear bearing on the press box upper mounting plate 110, and a large gasket is installed on the upper end of the lifting guide rod, and the lower end is connected to the press box lower mounting plate 130 by screw locking, which is used to guide vertical lifting; the lifting side plate limit blocks are fixedly installed on both sides of the press box upper mounting plate 110 by screw locking, and are installed in pairs, two pairs on one side, a total of eight pieces; the lifting side locking plates are fixedly installed on both sides of the press box lower mounting plate 130 by screw locking, located on the press box Between each pair of lifting side plate limit blocks on both sides of the mounting plate 110, there are four pieces on both sides, which are fixedly connected to the upper mounting plate 110 of the press box by screw locking, that is, they are used to lock and fix the lower mounting plate 130 of the press box; a plate is welded below the lifting screw, which is fixedly installed in the middle of the upper mounting plate 130 of the press box by screw locking; the lifting bearing seat is fixedly installed in the upper middle of the upper mounting plate 110 of the press box by screw locking, and a tapered roller bearing is installed on it; the lifting screw sleeve passes through the bearing of the lifting bearing seat, and the step supports the upper bearing, and a round nut is installed below to lock it with the lower bearing, that is, the lifting screw sleeve can rotate along the central axis of the lifting bearing seat; there is a screw hole in the middle of the lifting screw sleeve, which is connected to the lifting screw through the threaded screw hole; the lifting handwheel 160 mounting plate is fixed It is fixedly installed on the lower side of the mounting plate 110 on the press box through screw locking, and there are slots on it for installing parts such as handwheel 160 and tensioning the lifting chain; the lifting handwheel 160 bearing seat is fixedly installed on the upper side of the lifting handwheel 160 mounting plate through screw locking, and a bearing is installed on it; the lifting handwheel 160 shaft passes through the bearing of the lifting handwheel 160 bearing seat, and the step supports the upper bearing, and the lifting handwheel 160 is installed below and locked, so that it can rotate along the central axis of the lifting handwheel 160 bearing seat; the lifting screw sleeve sprocket is fixedly installed on the upper side of the lifting screw sleeve through screw locking, and the lifting handwheel 160 sprocket is fixedly installed on the upper side of the lifting handwheel 160 shaft through screw locking, and the lifting chain connects the lifting screw sleeve sprocket and the lifting handwheel 160 sprocket;The lifting chain idler wheel block is installed on one side of the mounting plate 110 on the press box by plugging screws, installed in pairs, located at both ends of the lifting chain, and used to assist in tensioning the lifting chain; the tank chain mounting bracket is fixedly installed on one side above the paper bag machine frame by screw locking, and the tank chain mounting support plate is fixedly installed on the outer side of one side of the lower mounting plate 130 of the press box by screw locking, and installed in pairs; tank chain mounting bent plates are installed at both ends of the tank chain, and the tank chain mounting bent plates at both ends are respectively installed on the tank chain mounting bracket and between a pair of tank chain mounting support plates for electrical wiring; when changing the box type of different heights, loosen the screws connected to the upper and lower mounting plates 110 of all lifting sides and turn the lifting handwheel 160 to drive the lifting handwheel 160 shaft to rotate, drive the lifting handwheel 160 sprocket to rotate, drive the lifting screw sleeve sprocket to rotate, drive the lifting screw sleeve to rotate, thereby driving the lifting screw to adjust up and down, thereby driving the lower mounting plate 130 of the press box to adjust up and down as a whole, and after adjusting to the required height, re-lock the screws connected to the upper and lower locking plates of all lifting sides and the mounting plate 110 of the press box. ;

[0066] In some embodiments of the present application, the upper folding assembly 300 includes an upper folding guide mounting plate 310, an upper folding guide bracket 320, an upper folding width adjustment screw component 330 and an upper folding plate component 340. The upper folding guide mounting plate 310 is arranged on the frame assembly 100, and the upper folding guide brackets 320 are arranged in pairs on the upper folding guide. The two pairs of upper folding guide brackets 320 are arranged at intervals in a direction horizontally perpendicular to the conveying direction. The upper folding width adjustment screw components 330 are respectively arranged through the two pairs of upper folding guide brackets 320 so that the upper folding width adjustment screw components 330 can be used to drive each pair of upper folding guide brackets 320 to be relatively close or relatively far away. The upper folding plate component 340 is arranged on the upper folding width adjustment screw component 330, and the upper folding plate component 340 is provided with a bending round rod 341 for contacting the side upper hinge of the carton and pre-folding. It is understandable that when changing carton specifications of different heights and widths, it is necessary to adjust the height and left and right positions of the upper folding plate. The height position can be achieved by adjusting the position of the lower mounting plate 130 in the frame assembly 100, while the left and right positions can be achieved by the upper folding width adjustment screw component 330.

[0067] In some embodiments, the upper folding assembly 300 includes: an upper folding guide mounting plate 310, an upper folding guide bracket 320, an upper folding width adjustment screw, an upper folding guide rod, an upper folding hanging plate and an upper folding plate; the upper folding guide mounting plate 310 is fixedly installed below the lower mounting plate 130 of the press box by screw locking, and is located between the front section press box cylinder and the rear section press box cylinder; the upper folding guide bracket 320 is fixedly installed on both sides below the upper folding guide mounting plate 310 by screw locking, and is installed in pairs, with a total of four pieces; the upper folding width adjustment screw passes between two pairs of upper folding guide brackets 320 on both sides, copper sleeves are installed at both ends of the shaft, and a hand wheel 160 is installed at one end of the shaft for rotation; the upper folding guide rod is fixedly installed between two pairs of upper folding guide brackets 320 on both sides by screw locking; a linear bearing is installed on the upper folding hanging plate, and the upper folding hanging plate is installed on the upper folding guide rod, and the guide rod passes through the linear Bearing; there is a screw hole in the middle of the upper folding hanger plate, which is connected to the upper folding width adjustment screw through the threaded screw hole; the upper folding plate is fixedly installed on the inner side of the upper folding hanger plate by screw locking, and there are slots on it, and the installation position 421 can be adjusted up and down; a bent round rod 341 is welded under the upper folding plate to contact the upper hinge on the carton side and pre-fold it; the height of the upper folding assembly 300 can be adjusted according to the height position of the lower mounting plate 130 of the pressure box, thereby adjusting the height of the upper folding plate; the locking position of the upper folding plate can be adjusted to fine-tune its height; turn the hand wheel 160 at one end of the upper folding width adjustment screw to adjust the left and right position of the upper folding hanger plate, thereby adjusting the left and right position of the upper folding plate; adjust so that the round rod under the upper folding plate is located close to the side and slightly lower than the upper hinge on the carton side, so that when the carton is conveyed, the round rod can contact the upper hinge on the carton side and pre-fold downward to close to the side.

[0068] In some embodiments of the present application, the frame assembly 100 is further provided with a glue spraying assembly 500, which is used to spray glue on the punching flap; it is understandable that the glue spraying assembly 500 can be integrated with the carton pressing mechanism to better complete the process. In other embodiments, the glue spraying assembly 500 can also be provided on the packaging machine and cooperate with the carton pressing mechanism.

[0069] In some embodiments, the frame assembly 100 is installed above the inside of the paper packaging machine frame, close to the paper box outlet of the paper packaging machine, for installing the remaining parts; the first pressing box assembly 200 is installed in the front below the frame assembly 100, for upper hinge forming; the glue spraying assembly 500 is installed in the front of the frame assembly 100, for spraying glue on the tongue of the upper hinge forming; the second pressing box assembly 400 is installed at the rear below the frame assembly 100, for pre-pressing the upper hinge again and assisting in the side hinge forming; the upper folding leaf assembly 300 is installed at the rear below the frame assembly 100, between the front section pressing box assembly and the rear section pressing box assembly, for guiding and pre-folding the upper side hinge.

[0070] In some embodiments of the present application, the glue spraying assembly 500 includes a glue spraying mounting bracket 510, a glue spraying shaft 520, a glue gun group 530, a glue spraying connecting rod 540 and a glue spraying cylinder component 550. The glue spraying mounting bracket 510 is arranged on the frame assembly 100, the glue spraying shaft 520 is rotatably arranged on the glue spraying mounting bracket 510 around an axis, the glue gun group 530 is arranged on the circumferential side wall of the glue spraying shaft 520, the glue spraying cylinder component 550 is arranged on the glue spraying mounting bracket 510, the glue spraying cylinder component 550 is connected to the glue spraying shaft 520 through the glue spraying connecting rod 540, and the glue spraying cylinder component 550 is used to drive the glue spraying shaft 520 to rotate so as to adjust the output angle of the glue gun group 530. It is understandable that when changing the specifications of cartons with different height sizes, it is necessary to adjust the height of the front-section press box plate and fine-tune the glue spraying position of the glue gun group 530; the height of the front-section press box cylinder can be adjusted by adjusting the height of the lower mounting plate 130 of the press box, thereby adjusting the height of the front-section press box plate; the locking screws of the glue gun group 530 can be loosened, the position can be adjusted up and down, and the installation angle can be adjusted by turning left and right, and then locked, thereby fine-tuning the glue spraying position of the glue gun group 530.

[0071] In some embodiments, the glue spraying assembly 500 includes: a glue spraying mounting bracket 510, a glue spraying mounting plate, a seat bearing, a glue spraying shaft 520, a glue gun group 530, a glue spraying shaft 520 connecting rod, a glue spraying cylinder and a glue spraying cylinder mounting bent plate; the glue spraying mounting bracket 510 is fixedly mounted on both sides of the front end above the mounting plate 110 on the press box by screw locking, the glue spraying mounting plate is fixedly mounted on the glue spraying mounting bracket 510 on both sides by screw locking, and the seat bearing is fixedly mounted on the top of the glue spraying mounting plate by screw locking; the glue spraying shaft 520 passes through the seat bearing, and there is a step on the shaft, which is stuck above the seat bearing, and wear-resistant gaskets are installed above and below the seat bearing, and a fixing ring is installed below the seat bearing of the glue spraying shaft 520 as a limit, and the glue spraying shaft 520 can rotate along the central axis of the seat bearing; the glue gun group 530 is fixedly clamped by screw locking It is installed on the glue spraying shaft 520 and can rotate with the glue spraying shaft 520 to spray glue on the tongue-beating leaf; the glue spraying shaft 520 connecting rod is fixedly installed on the upper end of the glue spraying shaft 520 by screw locking, and the glue spraying cylinder is connected to one end of the glue spraying shaft 520 connecting rod through a fisheye bearing, and is movably installed on the glue spraying cylinder mounting bent plate through a cylinder mounting foot; in the default state, the glue spraying cylinder is retracted, and the glue gun group 530 is oriented in the direction of the glue spraying cylinder retraction. When a glue spraying signal is given, the glue spraying cylinder extends a certain distance, driving the glue spraying shaft 520 connecting rod to rotate a certain angle along the central axis of the seat bearing, driving the glue spraying shaft 520 to rotate a certain angle, thereby driving the glue gun group 530 to rotate a certain angle along the central axis of the seat bearing; during the extension of the glue spraying cylinder, the glue gun group 530 sprays glue intermittently so that it can just spray to the tongue-beating leaf and avoid the tongue-beating plate 221.

[0072] Reference Figures 1 to 8The carton pressing method of the second aspect of the present application may be a carton pressing method using the carton pressing mechanism of the first aspect of the present application, and the carton pressing method includes the following steps:

[0073] The carton is transported along the transport direction to the position of the frame assembly 100 and passes through the first station and the second station in sequence;

[0074] When the carton arrives at the first station, the tongue-punching pages of the carton are sprayed with glue, and the first box pressing assembly 200 punches the tongue-punching pages of the carton and presses the upper hinge of the carton into shape;

[0075] The carton passes through the upper folding assembly 300 while being transported from the first station to the second station, and the upper folding assembly 300 pre-folds the upper side hinge of the carton;

[0076] When the carton arrives at the second station, the second box pressing assembly 400 assists in the forming of the side hinges and performs box pressing on the upper side hinges of the carton.

[0077] It can be understood that the two-stage press box solution has a simple and clear structure and stable operation. The segmented molding process avoids the problem of glue drying out during shutdown. In addition, based on the reasonable segmented molding process design, the equipment can be easily adjusted by the operator, saving manpower and production costs.

[0078] In some embodiments of the present application, two workstations are aligned below the front-stage box pressing assembly and the rear-stage box pressing assembly respectively; when the carton is conveyed to the workstation below the front-stage box pressing assembly, the tongue punching pages are punched, glue is sprayed, and the upper hinges are pressed and formed; when the carton is conveyed from the workstation below the front-stage box pressing assembly to the workstation below the rear-stage box pressing assembly, the upper hinges on the sides are pre-folded through the upper folding assembly 300; when the carton is conveyed to the workstation below the rear-stage box pressing assembly, the rear-stage box pressing cylinder is extended, and the rear-stage box pressing cylinder is pressed. The box plate presses the upper hinge of the carton, the rear-section bent box guard plate protects the front side of the carton, and the rear box guard plate of the rear-section box pressing assembly protects the rear side of the carton. At this time, the side hinges of the carton are close to the material, and the side hinges have been sprayed with glue by the other components of the paper packaging machine, the upper side hinges are pre-folded, and the lower side hinges have been pre-folded by the other components of the paper packaging machine. The other components of the paper packaging machine press the upper and lower side hinges tightly; when the carton movement at the workstation below the rear-section box pressing assembly is completed, the carton has been formed, and the formed carton continues to be transported backward.

[0079] The packaging machine of the third aspect embodiment of the present application includes the carton pressing mechanism of the first aspect embodiment of the present application, which avoids the problem of glue drying by air by placing the tongue page spraying, tongue punching and upper hinge pressing and forming in the front station, and placing the upper side hinge forming and auxiliary side hinge in the rear station; in addition, multiple adjusting screws are installed to facilitate adjustment after changing the carton specifications; multiple reinforced components are installed to enhance the structural rigidity and improve the mechanical movement stability.

[0080] The production line of the fourth embodiment of the present application may be a production line for express delivery of items or packaging of goods including a packaging process, and the production line includes a packaging machine according to the third embodiment of the present application.

[0081] It is not difficult to understand that the carton pressing method in the second aspect embodiment of the present application, the packaging machine in the third aspect embodiment of the present application and the production line in the fourth aspect embodiment of the present application all have the technical effects of the carton pressing mechanism in the first aspect embodiment, and therefore will not be described in detail.

[0082] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present application.

Claims

1. A carton pressing mechanism, characterized in that: include: Frame components; A first box pressing assembly, arranged on the frame assembly, the first box pressing assembly is used for punching the punching leaf of the carton and forming the upper hinge of the carton; An upper folding assembly is arranged on the frame assembly, and is arranged downstream of the first box pressing assembly along the conveying direction, and is used to pre-fold the upper side hinges of the carton; The second pressing box assembly is arranged on the frame assembly. The second pressing box assembly is arranged downstream of the upper folding assembly along the conveying direction. The second pressing box assembly is used to assist in the forming of the side hinges and the forming of the upper side hinges of the carton.

2. The carton pressing mechanism according to claim 1, characterized in that: The first box pressing assembly includes a first cylinder component, a tongue-breaking connecting rod shaft, a first box pressing plate, a first bending box protection plate, a tongue-breaking mounting plate and a tongue-breaking slider; The first cylinder component is arranged on the frame assembly, the first box pressing plate is used for box pressing and forming of the upper hinge, and the first cylinder component is connected to the first box pressing plate and is used to drive the first box pressing plate to move; The tongue-beating connecting rod shaft is rotatably arranged on the first box-pressing plate around an axis, a tongue-beating plate is arranged on the circumferential side wall of the tongue-beating connecting rod shaft, and the first bending box-protecting plate is arranged on the first box-pressing plate and is used to protect the front side of the carton when the upper hinge is formed; The tongue-beating mounting plate is arranged on the frame assembly, and a tongue-beating slide groove is provided on the tongue-beating mounting plate. The tongue-beating slider is connected to one end of the tongue-beating connecting rod shaft and is slidably arranged in the tongue-beating slide groove, so that when the tongue-beating connecting rod shaft is driven by the first cylinder component, the tongue-beating slider can slide along the track of the tongue-beating slide groove, and the tongue-beating slider can drive the tongue-beating connecting rod shaft to rotate when it slides to a preset position in the tongue-beating slide groove.

3. The carton pressing mechanism according to claim 2, characterized in that: The first press box assembly includes a first width-adjusting component and a second press box plate, the second press box plate and the first press box plate are spaced apart along the conveying direction, the first width-adjusting component connects the second press box plate and the first press box plate respectively so that the second press box plate and the first press box plate can move synchronously driven by the first cylinder component, and the first width-adjusting component is used to drive the second press box plate and the first press box plate to be relatively close to or away from each other along the conveying direction.

4. The carton pressing mechanism according to claim 1, characterized in that: The second box pressing assembly includes a second cylinder, a third box pressing plate, a corner pressing block, a second bending box protection plate, a second width adjusting component and a fourth box pressing plate; The second cylinder is arranged on the frame assembly, the third box pressing plate is used for pressing the box, and the second cylinder component is connected to the third box pressing plate and is used to drive the third box pressing plate to move; The third press box plate and the fourth press box plate are arranged at intervals along the conveying direction, and the second width adjustment component is connected to the third press box plate and the fourth press box plate respectively, so that the third press box plate and the fourth press box plate can be driven by the second cylinder component to move synchronously, and the second width adjustment component is used to drive the third press box plate and the fourth press box plate to be relatively close to or away from each other along the conveying direction; The third box pressing plate is provided with a plurality of installation positions, the corner pressing block is used to assist in pressing the upper hinge and the tongue leaf, the second bending box protection plate is used to assist in the forming of the side hinge and the upper side hinge of the carton, and the corner pressing block and the second bending box protection plate are respectively detachably arranged on one of the installation positions.

5. The carton pressing mechanism according to claim 1, characterized in that: The frame assembly includes an upper mounting plate, a lifting screw component, a lower mounting plate, a sprocket chain component, a drag chain component and a handwheel. The upper mounting plate and the lower mounting plate are spaced apart relative to each other in the longitudinal direction. The lifting screw component is used to drive the lower mounting plate to move relative to the upper mounting plate in the longitudinal direction. The handwheel drives the lifting screw component through the sprocket chain component. The drag chain component is arranged on the upper mounting plate.

6. The carton pressing mechanism according to claim 1, characterized in that: The upper folding assembly includes an upper folding guide mounting plate, an upper folding guide bracket, an upper folding width adjustment screw component and an upper folding plate component. The upper folding guide mounting plate is arranged on the frame assembly. The upper folding guide brackets are arranged in pairs on the upper folding guides. The two pairs of upper folding guide brackets are arranged at intervals in a horizontal direction perpendicular to the conveying direction. The upper folding width adjustment screw components are respectively arranged through the two pairs of upper folding guide brackets so that the upper folding width adjustment screw components can be used to drive each pair of the upper folding guide brackets to be relatively close or relatively far away. The upper folding plate component is arranged on the upper folding width adjustment screw component, and the upper folding plate component is provided with a bending round rod for contacting the side upper hinge of the carton and pre-folding.

7. The carton pressing mechanism according to claim 1, characterized in that: The frame assembly is also provided with a glue spraying assembly, and the glue spraying assembly is used for spraying glue on the tongue leaf; The glue spraying assembly includes a glue spraying mounting bracket, a glue spraying shaft, a glue gun group, a glue spraying connecting rod and a glue spraying cylinder component. The glue spraying mounting bracket is arranged on the frame assembly, and the glue spraying shaft can be rotatably arranged on the glue spraying mounting bracket around an axis. The glue gun group is arranged on the circumferential side wall of the glue spraying shaft, and the glue spraying cylinder component is arranged on the glue spraying mounting bracket. The glue spraying cylinder component is connected to the glue spraying shaft through the glue spraying connecting rod, and the glue spraying cylinder component is used to drive the glue spraying shaft to rotate so as to adjust the output angle of the glue gun group.

8. A carton pressing method, characterized in that: Using the carton pressing mechanism according to any one of claims 1 to 7 comprises the following steps: The carton is transported along the transport direction to the position of the frame assembly and passes through the first station and the second station in sequence; When the carton arrives at the first station, the tongue-punching pages of the carton are sprayed with glue, and the first box pressing assembly punches the tongue-punching pages of the carton and presses the upper hinge of the carton into shape; The carton passes through the upper folding assembly while being transported from the first station to the second station, and the upper folding assembly pre-folds the upper side hinges of the carton; When the carton arrives at the second station, the second box pressing assembly assists in the forming of the side hinges and performs box pressing to form the upper side hinges of the carton.

9. A packaging machine, characterized in that: include: A carton pressing mechanism as described in any one of claims 1 to 7.

10. A production line, characterized in that: include: The packaging machine as claimed in claim 9.

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