A carton collapsing mechanism, method, packer and line

Abstract

The application 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 flap assembly and a second carton pressing assembly. The first carton pressing assembly, the upper flap assembly and the second carton pressing assembly are sequentially arranged on the frame assembly along a conveying direction. The first carton pressing assembly is used for forming a tongue page and an upper hinge of a carton. The upper flap assembly is used for pre-folding a side upper hinge of the carton. The second carton pressing assembly is used for assisting in forming a side hinge and forming the side upper hinge of the carton. The glue spraying, the tongue page folding and the upper hinge pressing forming are completed by the first carton pressing assembly in the front working position, and the side upper hinge is pre-folded through the upper flap assembly. The side hinge forming and the side upper hinge forming are completed by the second carton pressing assembly in the rear working position, thereby avoiding the glue drying problem, facilitating the adjustment of the carton specification before packaging and the adjustment during the packaging, and ensuring the packaging quality of the carton.

Description

TECHNICAL FIELD

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

[0002] In the fields of express delivery of articles and packaging of goods, in order to safely and conveniently transport articles, various articles are usually wrapped with paper to meet the needs of article delivery.

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

[0004] Most of the box pressing forming processes are two-station forming processes, which include tongue page spraying, tongue page beating, upper hinge box pressing forming, side upper hinge forming, and auxiliary side hinge forming. Among them, the mechanism used in the box pressing forming process can be referred to as a carton pressing mechanism. The carton pressing mechanism basically completes the tongue page spraying and tongue page beating in the front station, and completes the upper hinge box pressing forming, side upper hinge forming, and auxiliary side hinge forming in the rear station. Such allocation of work steps is not convenient for adjustment after changing the carton specifications, has poor mechanical action stability, and when the paper wrapping machine needs to be temporarily stopped, if there is a carton in the front station and the tongue page has been sprayed with glue, it is easy to cause the problem of not being tightly pressed in the upper hinge box pressing forming in the rear station. SUMMARY

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

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

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

[0008] The present application also proposes a production line comprising the above-mentioned packaging machine.

[0009] According to the carton pressing mechanism of the first aspect of the present application, the carton pressing mechanism comprises:

[0010] a frame assembly;

[0011] A first box pressing assembly is arranged on the frame assembly, and is used for forming a tongue page and an upper hinge of a carton;

[0012] An upper folding page assembly is arranged on the frame assembly, and is arranged downstream of the first box pressing assembly in the conveying direction, and is used for pre-folding a side upper hinge of the carton;

[0013] A second box pressing assembly is arranged on the frame assembly, and is arranged downstream of the upper folding page assembly in the conveying direction, and is used for assisting in forming a side hinge and forming a side upper hinge of the carton.

[0014] The carton box pressing mechanism according to the first aspect of the present application has at least the following beneficial effects: the glue spraying of the tongue page, the tongue page folding and the upper hinge pressing forming are completed in the first box pressing assembly in the front working position, the side upper hinge is pre-folded through the upper folding page assembly, the side upper hinge forming and the auxiliary side hinge are completed in the second box pressing assembly in the rear working position, the glue drying problem is avoided, and the adjustment after replacing the carton specification before packaging and the adjustment in the packaging process are facilitated, so that the quality of the carton packaging is ensured.

[0015] The carton box pressing mechanism according to the first aspect of the present application, the first box pressing assembly comprises a first cylinder component, a tongue connecting rod shaft, a first box pressing plate, a first bending protection box plate, a tongue mounting plate and a tongue sliding block;

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

[0017] The tongue connecting rod shaft is rotatably arranged on the first box pressing plate, a tongue plate is arranged on a circumferential side wall of the tongue connecting rod shaft, and the first bending protection box plate is arranged on the first box pressing plate and is used for protecting the front side of the carton during the upper hinge forming;

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

[0019] According to the first aspect of the present application, the first box pressing mechanism comprises a first box pressing assembly, a second box pressing assembly, a frame assembly, a first cylinder component, a second cylinder component, a third box plate, a corner pressing block, a second bending protection box plate, a second width adjusting component and a fourth box plate.

[0020] According to the first aspect of the present application, the first box pressing mechanism comprises a first box pressing assembly, a second box pressing assembly, a frame assembly, a first cylinder component, a second cylinder component, a third box plate, a corner pressing block, a second bending protection box plate, a second width adjusting component and a fourth box plate.

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

[0022] The third box plate and the fourth box plate are arranged in the conveying direction, the second width adjusting component is connected with the third box plate and the fourth box plate respectively, so that the third box plate and the fourth box plate can move synchronously under the driving of the second cylinder component, and the second width adjusting component is used for driving the third box plate and the fourth box plate to relatively close or move away in the conveying direction;

[0023] A plurality of mounting positions are arranged on the third box plate, the corner pressing block is used for assisting in pressing the upper hinge and the tongue page, the second bending protection box plate is used for assisting in forming the side hinge and forming the side upper hinge of the carton, and the corner pressing block and the second bending protection box plate are respectively arranged on one of the mounting positions in a detachable manner.

[0024] According to the first aspect of the present application, the first box pressing mechanism comprises a first box pressing assembly, a second box pressing assembly, a frame assembly, a first cylinder component, a second cylinder component, a third box plate, a corner pressing block, a second bending protection box plate, a second width adjusting component and a fourth box plate.

[0025] According to the first aspect of the present application, the upper flap assembly comprises an upper flap guide plate mounting plate, an upper flap guide plate support, an upper flap width adjusting screw component and an upper flap plate component. The upper flap guide plate mounting plate is arranged on the frame assembly. The upper flap guide plate support is arranged in pairs on the upper flap guide plate. Two pairs of upper flap guide plate supports are arranged in a direction perpendicular to the conveying direction. The upper flap width adjusting screw component is arranged through the two pairs of upper flap guide plate supports. The upper flap width adjusting screw component can be used to drive the upper flap guide plate supports of each pair to move closer or farther away from each other. The upper flap plate component is arranged on the upper flap width adjusting screw component. The upper flap 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 first aspect of the present application, the frame assembly is further provided with a glue spraying assembly. The glue spraying assembly is used for spraying glue on the tongue flap.

[0027] The glue spraying assembly comprises a glue spraying mounting support, a glue spraying rotating shaft, a glue gun group, a glue spraying connecting rod and a glue spraying cylinder component. The glue spraying mounting support is arranged on the frame assembly. The glue spraying rotating shaft is rotatably arranged on the glue spraying mounting support. The glue gun group is arranged on the circumferential side wall of the glue spraying rotating shaft. The glue spraying cylinder component is arranged on the glue spraying mounting support. The glue spraying cylinder component is connected with the glue spraying rotating shaft through the glue spraying connecting rod. The glue spraying cylinder component is used to drive the glue spraying rotating shaft to rotate, so as to adjust the output angle of the glue gun group.

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

[0029] The carton is conveyed along the conveying direction to the position of the frame assembly and sequentially passes through the first station and the second station;

[0030] When the carton reaches the first station, the tongue flap of the carton is sprayed with glue. The first carton pressing assembly presses the tongue flap of the carton and forms the upper hinge of the carton;

[0031] The carton passes through the upper flap assembly on the way from the first station to the second station. The upper flap assembly pre-folds the side upper hinge of the carton;

[0032] When the carton reaches the second station, the second carton pressing assembly assists in forming the side hinge and pressing the side upper hinge of the carton.

[0033] According to the third aspect of the present application, the packaging machine comprises the carton pressing mechanism according to the first aspect of the present application.

[0034] The production line according to the fourth aspect of the present application comprises the packaging machine according to the third aspect of the present application.

[0035] It is understandable that the carton pressing method according to the second aspect of the present application, the packaging machine according to the third aspect of the present application and the production line according to the fourth aspect of the present application all have the technical effects of the carton pressing mechanism according to the first aspect of the present application, and thus will not be described again.

[0036] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0037] The present application will be further described below in conjunction with the drawings and embodiments;

[0038] Figure 1 The present application will be further described below in conjunction with the drawings and embodiments;

[0039] Figure 2 The present application will be further described below in conjunction with the drawings and embodiments;

[0040] Figure 3 The present application will be further described below in conjunction with the drawings and embodiments;

[0041] Figure 4 The present application will be further described below in conjunction with the drawings and embodiments;

[0042] Figure 5 The present application will be further described below in conjunction with the drawings and embodiments;

[0043] Figure 6 The present application will be further described below in conjunction with the drawings and embodiments;

[0044] Figure 7 The present application will be further described below in conjunction with the drawings and embodiments;

[0045] Figure 8 The present application will be further described below in conjunction with the drawings and embodiments;

[0046] LIST OF REFERENCE NUMERALS

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

[0048] 200, first pressing box assembly; 210, first cylinder part; 220, tongue beating shaft; 221, tongue beating plate; 230, first pressing box plate; 240, first bending protection box plate; 250, tongue beating installation plate; 251, tongue beating sliding groove; 260, tongue beating sliding block; 270, first width adjusting part; 280, second pressing box plate;

[0049] 300, upper folding leaf assembly; 310, upper folding leaf guide plate installation plate; 320, upper folding leaf guide plate support; 330, upper folding leaf width adjusting screw part; 340, upper folding leaf plate part; 341, bending round rod;

[0050] 400, second pressing box assembly; 410, second cylinder; 420, third pressing box plate; 421, installation position; 430, corner pressing block; 440, second bending protection box plate; 450, second width adjusting part; 460, fourth pressing box plate;

[0051] 500, glue spraying assembly; 510, glue spraying installation support; 520, glue spraying rotating shaft; 530, glue gun group; 540, glue spraying connecting rod; 550, glue spraying cylinder part. DETAILED DESCRIPTION

[0052] The embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below are examples for explaining the present application and should not be understood as limiting the present application.

[0053] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the purpose of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application, which indicates or implies that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0054] In the description of the present application, the meaning of several is one or more, the meaning of multiple is at least two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0055] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installation, connection, etc. should be understood broadly, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0056] Reference Figures 1 to 8 The carton pressing mechanism of the first aspect of this application is applied to steps such as tongue-spraying, tongue-spraying, upper hinge pressing, side upper hinge forming, and auxiliary side hinge forming. 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 pressing assembly 200 is disposed on the frame assembly 100. The first pressing assembly 200 is used to press the flaps and form the top hinge of the carton. The top folding assembly 300 is disposed on the frame assembly 100. Along the conveying direction, the top folding assembly 300 is disposed downstream of the first pressing assembly 200. The top folding assembly 300 is used to pre-fold the side top hinge of the carton. The second pressing assembly 400 is disposed on the frame assembly 100. Along the conveying direction, the second pressing assembly 400 is disposed downstream of the top folding assembly 300. The second pressing assembly 400 is used to assist in the formation of the side hinge and to form the side top hinge of the carton.

[0058] Understandably, by completing the first pressing assembly 200 in the front station by spraying glue on the flap, applying the flap, and forming the top hinge, and then using the top folding assembly 300 to transition and pre-fold the side top hinge, and finally completing the second pressing assembly 400 in the rear station by forming the side top hinge and the auxiliary side hinge, the problem of glue drying is avoided. This also facilitates adjustments after changing the carton specifications before packaging, as well as adjustments during packaging, thereby ensuring the quality of the carton packaging.

[0059] In some embodiments of the present application, the first pressing box assembly 200 comprises a first cylinder component 210, a tongue beating link shaft 220, a first pressing box plate 230, a first bending protection box plate 240, a tongue beating mounting plate 250 and a tongue beating sliding block 260; the first cylinder component 210 is arranged on the frame assembly 100, the first pressing box plate 230 is used for forming a pressing box of an upper hinge, the first cylinder component 210 is connected with the first pressing box plate 230 and is used for driving the first pressing box plate 230 to move; the tongue beating link shaft 220 is rotatably arranged on the first pressing box plate 230, a tongue beating plate 221 is arranged on a circumferential side wall of the tongue beating link shaft 220, the first bending protection box plate 240 is arranged on the first pressing box plate 230 and is used for protecting a front side of a carton when forming an upper hinge; the tongue beating mounting plate 250 is arranged on the frame assembly 100, a tongue beating sliding groove 251 is arranged on the tongue beating mounting plate 250, the tongue beating sliding block 260 is connected with one end of the tongue beating link shaft 220 and is slidably arranged in the tongue beating sliding groove 251, so that when the tongue beating link shaft 220 is driven by the first cylinder component 210, the tongue beating sliding block 260 can slide along a track of the tongue beating sliding groove 251, and the tongue beating sliding block 260 can drive the tongue beating link shaft 220 to rotate when the tongue beating sliding block 260 slides to a preset position in the tongue beating sliding groove 251.It can be understood that the first compression box assembly 200 is aligned with a station below, when the carton comes from the front station, the front side, the rear side, the side hinge, the side lower hinge and the upper hinge have been folded in sequence, and the tongue page needs to be punched and the upper hinge needs to be folded at this station; after the carton is in place, the front side is righted by the remaining components in the paper wrapping machine and the tongue page is sprayed with glue, after the spraying is completed, the first cylinder part 210 extends, driving the first compression box plate 230 to descend; the first compression box plate 230 contacts the pre-folded upper hinge during the descending process, and then gradually presses down; the first compression box plate 230 descends with the tongue lever shaft 220, the tongue sliding block 260 at one end of the tongue lever shaft 220 moves along the inner sliding groove track of the tongue sliding groove 251, because the central axis of the tongue lever shaft 220 is perpendicular to the movement track and the inner sliding groove track of the tongue sliding groove 251 is inconsistent, the tongue sliding block 260 rotates a certain angle after passing through the corner of the tongue sliding groove 251 and returns to normal, driving the tongue lever shaft 220 to rotate a certain angle and return to normal, the tongue plate 221 welded on the tongue lever shaft 220 moves to the normal direction to just hit the tongue page and quickly returns to normal; during the descending process of the first compression box plate 230, when the tongue plate 221 hits the tongue page, the position of the first compression box plate 230 should be close to or contact the tongue page, at this time the upper hinge contacts the pre-folded tongue page, continues to descend, the tongue lever shaft 220 quickly returns to normal, the upper hinge covers above the tongue page and is glued with the glue, until the first compression box plate 230 descends to the lowest; when the first compression box plate 230 descends to the lowest, the first compression box plate 230 presses the upper hinge and the tongue page of the carton, the first bending protection box plate 240 protects the front side of the carton, the second compression box plate 280 protects the rear side of the carton, and the second compression box plate 280 presses the rear side of the upper hinge of the carton; after a certain period of time, the first cylinder part 210 is retracted, the upper hinge and the tongue page should have been glued, i.e. not to rebound, the first compression box plate 230 can return to the highest position, waiting for the formed carton to be conveyed to the rear station and the carton to be input to the front station.

[0060] In some embodiments of the present application, the first box assembly 200 comprises a first width adjusting component 270 and a second box plate 280, the second box plate 280 and the first box plate 230 are arranged in a spaced manner along the conveying direction, the first width adjusting component 270 is connected to the second box plate 280 and the first box plate 230 respectively, so that the second box plate 280 and the first box plate 230 can be driven synchronously by the first cylinder component 210, and the first width adjusting component 270 is used to drive the second box plate 280 and the first box plate 230 to relatively close or away along the conveying direction. It can be understood that when replacing different width of carton specifications, the first bending box plate 240 is used for positioning, the position is unchanged, and the position of the second box plate 280 needs to be adjusted; the second box plate 280 can be adjusted forward and backward by the first width adjusting component 270. In some embodiments, the first width adjusting component 270 comprises a box width adjusting screw, a hand wheel 160 and a box width adjusting support block, rotating the hand wheel 160 at one end of the box width adjusting screw to make it rotate, driving the box width adjusting support block to move forward and backward, thereby driving the second box plate 280 to adjust forward and backward.

[0061] In some embodiments, the first compression box assembly 200 includes: a front section compression box cylinder, a front section compression box cylinder extension shaft, a front section compression box guide rod, a front section compression box cylinder connecting plate, a bearing with seat, a tongue hitting connecting rod shaft 220, a front section compression box plate, a front section compression box bending protection plate, a tongue hitting sliding groove 251 mounting block, a tongue hitting sliding groove 251 mounting plate, a tongue hitting sliding groove 251, a tongue hitting sliding groove 251 protection plate, a tongue hitting connecting rod block, a tongue hitting sliding block 260, a compression box width adjusting screw rod support, a compression box width adjusting screw rod, a compression box width adjusting guide rod, a compression box screw rod connecting block, a compression box width adjusting support block, a compression box rear protection plate, and a compression box rear pressing plate; the front section compression box cylinder is fixedly installed on the front end of the upper side of the compression box lower mounting plate 130 by screw locking, the front section compression box cylinder extension shaft is installed below the front section compression box cylinder by screw thread hole, used for extending and offsetting the cylinder shaft; a linear bearing is installed on the compression box lower mounting plate 130, the front section compression box guide rod passes through the linear bearing on the compression box lower mounting plate 130, and the lower end is connected with the front section compression box cylinder connecting plate through screw thread hole, used for guiding; the front section compression box cylinder connecting plate is connected below the front section compression box cylinder extension shaft through screw thread hole; the bearing with seat is fixedly installed on the upper side of the front section compression box plate by screw locking, the tongue hitting connecting rod shaft 220 passes through the bearings with seat on both sides, can rotate along the central axis of the bearing with seat, a clamping spring is installed on the shaft for limiting, a tongue hitting plate 221 is welded on the shaft, used for tongue hitting action; the front section compression box plate is fixedly installed below the front section compression box cylinder connecting plate by screw locking, used for installing the remaining parts and the compression box; the front section compression box bending protection plate is fixedly installed on the front side of the upper side of the front section compression box plate by screw locking, used for protecting the front side of the carton when the upper hinge compression box is formed; the tongue hitting sliding groove 251 mounting block is fixedly installed below the compression box upper mounting plate 110 by screw locking, the tongue hitting sliding groove 251 mounting plate is fixedly installed on the side of the tongue hitting sliding groove 251 mounting block by screw locking, the tongue hitting sliding groove 251 is fixedly installed on the inner side of the tongue hitting sliding groove 251 mounting plate by screw locking, the sliding groove faces the inner side, the tongue hitting sliding groove 251 protection plate is fixedly installed on one side of the tongue hitting sliding groove 251 by screw locking, the tongue hitting connecting rod block is fixedly installed on one end of the tongue hitting connecting rod shaft 220 by screw locking, the tongue hitting sliding block 260 is fixedly installed on the tongue hitting connecting rod block by screw thread hole, the outer circle of the tongue hitting sliding block 260 is located in the sliding groove in the tongue hitting sliding groove 251, and the whole is used for the tongue hitting page forming action when the upper hinge is formed; the compression box width adjusting screw rod support is fixedly installed on the upper rear side of the front section compression box plate by screw locking, the compression box width adjusting guide rod is fixedly installed on the upper side of the front section compression box cylinder connecting plate by screw locking, the compression box screw rod connecting block is fixedly installed on one end of the compression box width adjusting guide rod on both sides by screw locking, the compression box width adjusting screw rod is installed between the compression box width adjusting screw rod support and the compression box screw rod connecting block, copper sleeves are installed on both ends of the shaft, a hand wheel 160 is installed on one end of the shaft, and the hand wheel 160 can rotate; the compression box width adjusting support block is installed on the compression box width adjusting guide rod on both sides, and the middle screw hole is connected with the compression box width adjusting screw rod.The pressing box rear protection box plate is provided with a through hole, and the pressing box rear pressing plate is provided with a screw hole, and the two are fixedly connected through a screw, the pressing box rear pressing plate is located below the inner side of the pressing box rear protection box plate, and the pressing box rear pressing plate is fixedly installed below the pressing box width adjusting support block through a screw.

[0062] In some embodiments of the present application, the second pressing box assembly 400 comprises a second cylinder 410, a third pressing box plate 420, a corner pressing block 430, a second bending protection box plate 440, a second width adjusting component 450 and a fourth pressing box plate 460; the second cylinder 410 is arranged on the frame assembly 100, the third pressing box plate 420 is used for pressing a box, the second cylinder 410 component is connected with the third pressing box plate 420 and is used for driving the third pressing box plate 420 to move; the third pressing box plate 420 and the fourth pressing box plate 460 are arranged at intervals along the conveying direction, the second width adjusting component 450 is connected with the third pressing box plate 420 and the fourth pressing box plate 460 respectively, so that the third pressing box plate 420 and the fourth pressing box plate 460 can be driven to move synchronously by the second cylinder 410 component, and the second width adjusting component 450 is used for driving the third pressing box plate 420 and the fourth pressing box plate 460 to relatively approach or move away along the conveying direction; a plurality of mounting positions 421 are arranged on the third pressing box plate 420, the corner pressing block 430 is used for assisting in pressing the upper hinge and the tongue page, the second bending protection box plate 440 is used for assisting in forming the side hinge and forming the side upper hinge of the carton, and the corner pressing block 430 and the second bending protection box plate 440 are respectively detachably arranged on one of the mounting positions 421. It can be understood that when the carton specification of different width sizes is replaced, the position of the corner pressing block 430 needs to be adjusted, and the second bending protection box plate 440 may need to be replaced; the second pressing box plate 280 is provided with a plurality of screw holes, the rear corner pressing block 430 can be adjusted and installed to be locked in position left and right, the mounting position 421 is adjusted to align the position of the lower pressing box with the position of the glue injection at the tongue page, so as to be able to press the upper hinge and the tongue page; if the width of the carton is too wide or too narrow, the second bending protection box plate 440 after being widened or narrowed needs to be replaced, so that it can protect the front side of the carton and not exceed the range of the side hinge.

[0063] In some embodiments, the rear section compression box assembly includes a rear section compression box cylinder, a rear section compression box cylinder extension shaft, a rear section compression box guide rod, a rear section compression box cylinder connecting plate, a rear section compression box plate, a rear section corner compression block 430, a rear section bending protection box plate, a compression box width adjustment screw rod support, a compression box width adjustment screw rod, a compression box width adjustment guide rod, a compression box screw rod connecting block, a compression box width adjustment support block, a compression box rear protection box plate, and a compression box rear pressing plate. The compression box width adjustment screw rod support, the compression box width adjustment screw rod, the compression box width adjustment guide rod, the compression box screw rod connecting block, the compression box width adjustment support block, the compression box rear protection box plate, and the compression box rear pressing plate are installed and function the same as the front section compression box assembly. The rear section compression box cylinder is fixedly installed above and behind the compression box lower mounting plate 130 by screw locking, the rear section compression box cylinder extension shaft is fixedly installed below the rear section compression box cylinder by a threaded hole, and is used to extend and offset the cylinder shaft. The rear section compression box guide rod passes through a linear bearing on the compression box lower mounting plate 130, and the lower end is connected to the rear section compression box cylinder connecting plate by a threaded hole, and is used for guiding. The rear section compression box cylinder connecting plate is connected below the rear section compression box cylinder extension shaft by a threaded hole. The rear section compression box plate is fixedly installed below the rear section compression box cylinder connecting plate by screw locking, and the rear section corner compression block 430 and the rear section bending protection box plate are fixedly installed above and in front of the rear section compression box plate by screw locking. The rear section corner compression block 430 and the rear section compression box plate are aligned at the bottom surface, and are used to assist in pressing the upper hinge and the tongue hinge. The rear section bending protection box plate is used to protect the front side of the carton, and is used to assist in forming the side hinge and the side upper 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 chain wheel and 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 spaced apart relative to each other 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 chain wheel and chain component 140. The drag chain component 150 is arranged on the upper mounting plate 110. It can be understood that when the box type of different heights is replaced, the height direction position of the lower mounting plate 130 is adjusted by the lifting screw component 120, so that the height direction positions of the components arranged on the lower mounting plate 130 can be synchronously adjusted. In combination with the adjustable functions of the components themselves, different specifications of the box type can be adapted.

[0065] In some embodiments, the frame assembly 100 includes: a pressure box upper mounting plate 110, a pressure box upper support plate, a pressure box support shaft, a lifting guide rod, a lifting side plate limiting block, a lifting side locking plate, a pressure box lower mounting plate 130, a lifting screw, a lifting screw sleeve chain wheel, a lifting screw sleeve, a lifting bearing seat, a lifting hand wheel 160 mounting plate, a lifting hand wheel 160 chain wheel, a lifting hand wheel 160 shaft, a lifting hand wheel 160 bearing seat, a lifting hand wheel 160, a lifting chain, a lifting chain idler block, a tank chain mounting bracket, a tank chain, a tank chain mounting bent plate, and a tank chain mounting support plate; the pressure box upper mounting plate 110 is fixedly installed on the upper side of the inside of the paper wrapping machine frame by screw locking, used for installing the remaining parts; the pressure box upper support plate is fixedly installed on the lower side of the front of the pressure box upper mounting plate 110 by screw locking, the pressure box support shaft is fixedly installed on the lower side of both sides of the pressure box upper support plate by screw locking, the lower end of the shaft is connected with the paper wrapping machine side flat plate by screw locking, used for supporting / stiffening the pressure box upper mounting plate 110; a linear bearing is installed on the pressure box upper mounting plate 110; the lifting guide rod passes through the linear bearing on the pressure box upper mounting plate 110, the upper end of the lifting guide rod is provided with a large gasket, the lower end is connected with the pressure box lower mounting plate 130 by screw locking, used for guiding vertical lifting; the lifting side plate limiting block is fixedly installed on both sides of the pressure box upper mounting plate 110 by screw locking, installed in pairs, two pairs on one side, a total of eight; the lifting side locking plate is fixedly installed on both sides of the pressure box lower mounting plate 130 by screw locking, located between each pair of lifting side plate limiting blocks on both sides of the pressure box upper mounting plate 110, a total of four on both sides, fixedly connected with the pressure box upper mounting plate 110 by screw locking, i.e. used for locking and fixing the pressure box lower mounting plate 130; the lifting screw is welded with a plate on the lower side, fixedly installed on the upper middle part of the pressure box lower mounting plate 130 by screw locking; the lifting bearing seat is fixedly installed on the upper middle part of the pressure box upper mounting plate 110 by screw locking, a tapered roller bearing is installed thereon; the lifting screw sleeve passes through the bearing of the lifting bearing seat, the stepped part abuts against the upper bearing, a circular nut is installed on the lower side and locked with the lower bearing, i.e. the lifting screw sleeve can rotate along the central axis of the lifting bearing seat; a threaded hole is formed in the middle part of the lifting screw sleeve, connected with the lifting screw through thread hole cooperation; the lifting hand wheel 160 mounting plate is fixedly installed on the lower side of one side of the pressure box upper mounting plate 110 by screw locking, provided with a slot hole thereon, used for installing hand wheel 160 and other parts and tensioning the lifting chain; the lifting hand wheel 160 bearing seat is fixedly installed on the upper side of the lifting hand wheel 160 mounting plate by screw locking, provided with a bearing thereon; the lifting hand wheel 160 shaft passes through the bearing of the lifting hand wheel 160 bearing seat, the stepped part abuts against the upper bearing, the lifting hand wheel 160 is installed on the lower side and locked, i.e. can rotate along the central axis of the lifting hand wheel 160 bearing seat; the lifting screw sleeve chain wheel is fixedly installed on the upper side of the lifting screw sleeve by screw locking, the lifting hand wheel 160 chain wheel is fixedly installed on the upper side of the lifting hand wheel 160 shaft by screw locking, the lifting chain connects the lifting screw sleeve chain wheel and the lifting hand wheel 160 chain wheel.The lifting chain idler block is installed on the one side of the upper installation plate 110 of the pressing box by screwing, and is installed in pairs and located at the two ends of the lifting chain to assist in tensioning the lifting chain. The tank chain installation support is fixedly installed on the upper side of the paper packing machine frame by screwing, and the tank chain installation support plate is fixedly installed on the outer side of the one side of the lower installation plate 130 of the pressing box by screwing. The tank chain installation support plate is installed in pairs. The tank chain installation bent plates are installed at the two ends of the tank chain, and the tank chain installation bent plates at the two ends are respectively installed between the tank chain installation support and the pair of tank chain installation support plates to pass the electric wire. When the box of different heights is replaced, the screws connecting the upper side of the lifting side locking plate and the upper installation plate 110 of the pressing box are loosened, the lifting hand wheel 160 is rotated to drive the shaft of the lifting hand wheel 160 to rotate, the chain wheel of the lifting hand wheel 160 is driven to rotate, the chain wheel of the lifting screw sleeve is driven to rotate, the lifting screw sleeve is driven to rotate, and thus the lifting screw rod is adjusted up and down, and the lower installation plate 130 of the pressing box is adjusted up and down as a whole. After the height required is adjusted, the screws connecting the upper side of the lifting side locking plate and the upper installation plate 110 of the pressing box are locked again.

[0066] In some embodiments of the present application, the upper folding leaf assembly 300 comprises an upper folding leaf guide plate installation plate 310, an upper folding leaf guide plate support 320, an upper folding leaf width adjusting screw component 330 and an upper folding leaf plate component 340. The upper folding leaf guide plate installation plate 310 is arranged on the frame assembly 100. The upper folding leaf guide plate supports 320 are arranged in pairs on the upper folding leaf guide plate. The two pairs of upper folding leaf guide plate supports 320 are arranged in a direction perpendicular to the conveying direction. The upper folding leaf width adjusting screw component 330 is arranged through the two pairs of upper folding leaf guide plate supports 320 respectively, so that the upper folding leaf width adjusting screw component 330 can be used to drive each pair of upper folding leaf guide plate supports 320 to be relatively close or relatively far away. The upper folding leaf plate component 340 is arranged on the upper folding leaf width adjusting screw component 330, and the upper folding leaf plate component 340 is provided with a bending round rod 341 for contacting the side upper hinge of the carton and pre-folding. It can be understood that when the carton specifications of different heights and different widths are replaced, the height and left-right positions of the upper folding leaf plate need to be adjusted. The height position can be adjusted by adjusting the position of the lower installation plate 130 in the frame assembly 100, and the left-right position can be adjusted by the upper folding leaf width adjusting screw component 330.

[0067] In some embodiments, the upper flap assembly 300 comprises an upper flapper guide mounting plate 310, an upper flapper guide bracket 320, an upper flapper width adjusting screw, an upper flapper guide rod, an upper flapper hanger plate, and an upper flapper plate. The upper flapper guide mounting plate 310 is fixedly installed below the lower mounting plate 130 of the compression box by screw locking, located between the front section compression box cylinder and the rear section compression box cylinder. The upper flapper guide bracket 320 is fixedly installed below the upper flapper guide mounting plate 310 on both sides by screw locking, installed in pairs, a total of four. The upper flapper width adjusting screw passes between the two pairs of upper flapper guide brackets 320 on both sides, with copper bushings installed at both ends of the shaft, and a hand wheel 160 is installed at one end of the shaft for rotation. The upper flapper guide rod is fixedly installed between the two pairs of upper flapper guide brackets 320 on both sides by screw locking. The upper flapper hanger plate is installed on the upper flapper guide rod, with a linear bearing installed on it. The upper flapper hanger plate has a threaded hole in the middle, connected to the upper flapper width adjusting screw through the threaded hole. The upper flapper plate is fixedly installed inside the upper flapper hanger plate by screw locking, with a slot on it for up and down adjustment of the installation position 421. A bent round rod 341 is welded below the upper flapper plate, used to contact and pre-fold the upper side hinge of the carton. The height of the upper flapper assembly 300 can be adjusted according to the height of the lower mounting plate 130 of the compression box, thereby adjusting the height of the upper flapper plate. The locking position of the upper flapper plate can be adjusted to fine-tune its height. The left and right positions of the upper flapper hanger plate can be adjusted by rotating the hand wheel 160 at one end of the upper flapper width adjusting screw, thereby adjusting the left and right positions of the upper flapper plate. The round rod below the upper flapper plate is located close to the side surface and slightly lower than the upper side hinge of the carton after adjustment, so that the round rod can contact the upper side hinge of the carton and pre-fold it downward to the side surface during the carton conveying process.

[0068] In some embodiments of the present application, a glue spraying assembly 500 is also provided on the frame assembly 100, which is used to spray glue on the tongue. It can be understood that the glue spraying assembly 500 can be integrated on the carton compression 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 compression mechanism.

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

[0070] In some embodiments of the present application, the glue spraying assembly 500 comprises a glue spraying mounting bracket 510, a glue spraying shaft 520, a glue gun set 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. The glue gun set 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 with the glue spraying shaft 520 through the glue spraying connecting rod 540. 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 set 530. It can be understood that when the carton specification of different height sizes is replaced, the front section of the carton pressing plate needs to be adjusted to adjust the height of the carton pressing plate and the fine adjustment of the glue spraying position of the glue gun set 530. According to the adjustment of the height position of the lower mounting plate 130, the height position of the front section of the carton pressing cylinder is adjusted, and the height position of the front section of the carton pressing plate is adjusted. The locking screw of the glue gun set 530 is loosened, and the position is adjusted up and down and the installation angle is adjusted left and right, and then locked, so as to fine adjust the glue spraying position of the glue gun set 530.

[0071] In some embodiments, the glue spraying assembly 500 comprises a glue spraying mounting bracket 510, a glue spraying mounting plate, a bearing with seat, a glue spraying shaft 520, a glue gun set 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 arranged on the front end of the upper side of the carton pressing plate 110 through screw locking. The glue spraying mounting plate is fixedly arranged on the upper side of the two glue spraying mounting brackets 510 through screw locking. The bearing with seat is fixedly arranged on the upper side of the glue spraying mounting plate through screw locking. The glue spraying shaft 520 passes through the bearing with seat. The shaft has a step, which is clamped on the upper side of the bearing with seat. Wear-resistant gaskets are arranged on the upper and lower sides of the bearing with seat. The glue spraying shaft 520 is rotatably arranged on the bearing with seat. The glue spraying shaft 520 is rotatably arranged on the bearing with seat. The glue gun set 530 is fixedly arranged on the glue spraying shaft 520 through screw locking. The glue gun set 530 can rotate with the glue spraying shaft 520, and is used for spraying glue on the tongue page. The glue spraying shaft 520 connecting rod is fixedly arranged on the upper end of the glue spraying shaft 520 through screw locking. The glue spraying cylinder is connected with the glue spraying shaft 520 connecting rod through the fish-eye bearing. The glue spraying cylinder is movably arranged on the glue spraying cylinder mounting bent plate through the cylinder mounting foot. In the default state, the glue spraying cylinder is retracted, and the glue gun set 530 is directed to the retraction direction of the glue spraying cylinder. When the glue spraying signal is given, the glue spraying cylinder is extended by a distance, drives the glue spraying shaft 520 connecting rod to rotate by a certain angle along the central axis of the bearing with seat, drives the glue spraying shaft 520 to rotate by a certain angle, and drives the glue gun set 530 to rotate by a certain angle along the central axis of the bearing with seat. During the extension of the glue spraying cylinder, the glue gun set 530 intermittently sprays glue, so that the glue can be sprayed on the tongue page and avoid the tongue plate 221.

[0072] Referring to Figures 1 to 8The paper box pressing method of the second aspect embodiment of the present application can be a paper box pressing method using the paper box pressing mechanism of the first aspect embodiment of the present application, and the paper box pressing method comprises the following steps:

[0073] The paper box is conveyed along the conveying direction to the position of the frame assembly 100 and sequentially passes through the first station and the second station;

[0074] When the paper box reaches the first station, the tongue page of the paper box is glued, the first box pressing assembly 200 presses the tongue page of the paper box and forms the upper hinge of the paper box;

[0075] The paper box passes through the upper hinge assembly 300 in the process of conveying from the first station to the second station, and the upper hinge assembly 300 pre-folds the side upper hinge of the paper box;

[0076] When the paper box reaches the second station, the second box pressing assembly 400 assists the side hinge forming and presses the side upper hinge of the paper box.

[0077] It can be understood that the two-stage pressing scheme has simple and clear structure and stable work, and the segmented forming steps avoid the problem of easy air drying of glue during shutdown. In addition, based on the reasonable segmented forming step design, the device can be easily adjusted by the operator, saving manpower and production cost.

[0078] In some embodiments of the present application, the front and rear box pressing assemblies are respectively aligned with two stations below; when the paper box is conveyed to the station below the front box pressing assembly, the tongue page is pressed, glued, and the upper hinge is pressed; when the paper box is conveyed from the station below the front box pressing assembly to the station below the rear box pressing assembly, the upper hinge assembly 300 pre-folds the side upper hinge; when the paper box is conveyed to the station below the rear box pressing assembly, the rear box pressing cylinder extends, the rear box pressing plate presses the upper hinge of the paper box, the rear box pressing plate protects the front side of the paper box, and the rear box pressing plate protects the rear side of the paper box. At this time, the side hinge is close to the material, and the side hinge has been glued by the remaining components of the paper wrapping machine, the side upper hinge is pre-folded, the side lower hinge is pre-folded by the remaining components of the paper wrapping machine, and the side upper hinge and the side lower hinge are pressed by the remaining components of the paper wrapping machine. When the action of the station below the rear box pressing assembly is completed, the paper box is formed, and the formed paper box is continuously conveyed.

[0079] The packaging machine of the third aspect embodiment of the present application comprises the paper box pressing mechanism of the first aspect embodiment of the present application, the glue spraying of the tongue page, the pressing of the tongue page, and the pressing of the upper hinge are completed in the front station, and the side upper hinge forming and the auxiliary side hinge are completed in the rear station, thereby avoiding the problem of glue drying. In addition, multiple adjusting screws are installed to facilitate adjustment after changing the size of the paper box. Multiple reinforced parts are installed to enhance the structural rigidity and improve the stability of mechanical action.

[0080] The production line of the fourth aspect embodiment of the present application can be a production line of goods packaging or goods delivery including a packing process, and the production line comprises the packing machine of the third aspect embodiment of the present application.

[0081] It is understood that the carton pressing method of the second aspect embodiment of the present application, the packing machine of the third aspect embodiment of the present application and the production line of the fourth aspect embodiment of the present application all have the technical effects of the carton pressing mechanism of the first aspect embodiment of the present application, and thus will not be described again.

[0082] The technical features of the above embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0083] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application.

Claims

1. A carton pressing mechanism, characterized in that, include: Framework components; A first pressing assembly is disposed on the frame assembly. The first pressing assembly is used to press the flap of the carton and form the top hinge of the carton. An upper folding assembly is disposed on the frame assembly and is located downstream of the first pressing assembly along the conveying direction. The upper folding assembly is used to pre-fold the side upper hinge of the carton. The second pressing assembly is disposed on the frame assembly and is located downstream of the upper hinge assembly along the conveying direction. The second pressing assembly is used to assist in the side hinge forming and to form the side upper hinge of the carton. The first pressure box assembly includes a first cylinder component, a tongue-beating connecting rod shaft, a first pressure box plate, a first bent protective box plate, a tongue-beating mounting plate, and a tongue-beating slider; The first cylinder component is mounted on the frame assembly, and the first pressure plate is used for pressing and forming the upper hinge. The first cylinder component is connected to the first pressure plate and is used to drive the first pressure plate to move; The tongue-beating connecting rod shaft is rotatably mounted on the first pressure plate, and a tongue-beating plate is provided on the circumferential side wall of the tongue-beating connecting rod shaft. The first bending protective plate is mounted on the first pressure plate and is used to protect the front side of the carton when the upper hinge is formed. The tongue-striking mounting plate is disposed on the frame assembly. The tongue-striking mounting plate is provided with a tongue-striking groove. The tongue-striking slider is connected to one end of the tongue-striking connecting rod shaft and is slidably disposed in the tongue-striking groove. When the tongue-striking connecting rod shaft is driven by the first cylinder component, the tongue-striking slider can slide along the trajectory of the tongue-striking groove. When the tongue-striking slider slides to a preset position in the tongue-striking groove, it can drive the tongue-striking connecting rod shaft to rotate. The second pressure box assembly includes a second cylinder, a third pressure box plate, corner pressure blocks, a second bending protective plate, a second width adjustment component, and a fourth pressure box plate; The second cylinder is mounted on the frame assembly, the third pressure plate is used for pressing the pressure plate, and the second cylinder is connected to the third pressure plate and is used to drive the third pressure plate to move. The third pressure plate and the fourth pressure plate are spaced apart along the conveying direction. The second width adjustment component is connected to the third pressure plate and the fourth pressure plate respectively, so that the third pressure plate and the fourth pressure plate can move synchronously under the drive of the second cylinder. The second width adjustment component is used to drive the third pressure plate and the fourth pressure plate to move closer or further apart relative to each other along the conveying direction. The third pressing plate is provided with multiple mounting positions. The corner pressing block is used to assist in pressing the top hinge and the flap. The second bending protective plate is used to assist in the forming of the side hinge and the forming of the side top hinge of the carton. The corner pressing block and the second bending protective plate are respectively detachably mounted on one of the mounting positions. The upper folding assembly includes an upper folding guide plate mounting plate, an upper folding guide plate bracket, an upper folding width adjusting screw component, and an upper folding plate component. The upper folding guide plate mounting plate is disposed on the frame assembly. The upper folding guide plate brackets are disposed in pairs on the upper folding guide plate, with the two pairs of upper folding guide plate brackets spaced apart along a direction perpendicular to the conveying direction. The upper folding width adjusting screw component passes through the two pairs of upper folding guide plate brackets respectively, so that the upper folding width adjusting screw component can be used to drive the pairs of upper folding guide plate brackets to move closer or further apart. The upper folding plate component is disposed on the upper folding width adjusting screw component, and the upper folding plate component is provided with a bent round rod for contacting the side upper hinge of the carton and pre-folding.

2. The carton pressing mechanism according to claim 1, characterized in that: The first pressure box assembly includes a first width adjustment component and a second pressure box plate. The second pressure box plate and the first pressure box plate are spaced apart along the conveying direction. The first width adjustment component is connected to the second pressure box plate and the first pressure box plate respectively, so that the second pressure box plate and the first pressure box plate can move synchronously under the drive of the first cylinder component. The first width adjustment component is used to drive the second pressure box plate and the first pressure box plate to move relatively closer or further apart along the conveying direction.

3. 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 and chain component, a cable chain component, and a handwheel. The upper mounting plate and the lower mounting plate are spaced apart from each other in the longitudinal direction. The lifting screw component is used to drive the lower mounting plate to move in the longitudinal direction relative to the upper mounting plate. The handwheel drives the lifting screw component through the sprocket and chain component. The cable chain component is mounted on the upper mounting plate.

4. The carton pressing mechanism according to claim 1, characterized in that: The frame assembly is also provided with a glue spraying assembly, which is used to spray glue onto the tab page. The glue spraying assembly includes a glue spraying mounting bracket, a glue spraying shaft, a glue gun assembly, a glue spraying connecting rod, and a glue spraying cylinder component. The glue spraying mounting bracket is mounted on the frame assembly. The glue spraying shaft is rotatably mounted on the glue spraying mounting bracket. The glue gun assembly is mounted on the circumferential sidewall of the glue spraying shaft. The glue spraying cylinder component is mounted on the glue spraying mounting bracket and is connected to the glue spraying shaft via the glue spraying connecting rod. The glue spraying cylinder component is used to drive the glue spraying shaft to rotate, thereby adjusting the output angle of the glue gun assembly.

5. A method for pressing cartons, characterized in that, Using the carton pressing mechanism as described in any one of claims 1 to 4 includes the following steps: The carton is conveyed along the conveying direction to the location 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 flap of the carton is sprayed with glue, and the first pressing assembly flaps the flap of the carton and presses the top hinge of the carton to form the carton. The carton passes through the upper folding assembly during its transport from the first station to the second station, and the upper folding assembly pre-folds the side upper hinge of the carton; When the carton arrives at the second station, the second pressing assembly assists in the forming of the side hinges and presses the upper side hinges of the carton into shape.

6. A packaging machine, characterized in that, include: The carton pressing mechanism as described in any one of claims 1 to 4.

7. A production line, characterized in that, include: The packaging machine as described in claim 6.

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