Swing arm action assembly of automatic box folding machine

Abstract

The utility model relates to the technical field of box folding machines, in particular to a swing arm action assembly of an automatic box folding machine, which comprises a first swing arm shaft seat and a second swing arm shaft seat, the second swing arm shaft seat is rotatably connected to the first swing arm shaft seat, and the second swing arm shaft seat is connected with a lower swing arm; the lower end of the lower swing arm is provided with an inner blocking structure used for blocking the folded edge of the carton blank, the upper portion or the middle of the lower swing arm is further provided with a deflection push-pull base, and the swing arm driver is connected with the deflection push-pull base and drives the lower swing arm to deflect between a blocking position and an initial position. The paper box blank is subjected to auxiliary fixing treatment through the rocker arm action assembly, the folding forming efficiency of the paper box blank can be improved, a better folding forming effect can be conveniently achieved, automation of paper box forming is achieved, and the defect of manual operation is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of box folding machines, in particular to a swing arm action component of an automatic box folding machine. Background Art

[0002] Nowadays, many commodities are packaged in boxes and then put on the market as finished products. Especially for items whose appearance is easily damaged by bumps, they need the protection of boxes. Currently, most packaging boxes are formed by folding cardboard to form a space for accommodating items. With the increasing number of commodities, the demand for packaging boxes has also increased sharply. The traditional packaging box processing and production methods mainly rely on manual participation, folding by hand, or semi-automatic processing and production with the assistance of equipment. This has the problems of low efficiency, poor consistency of finished products and high labor costs, which cannot meet the current growing demand.

[0003] It can be seen that the current folding box processing and production plan still has room for improvement. It should be optimized to improve the degree of automation, so that the efficiency of the entire production and processing can be improved, the precision of the finished product can be improved, and the overall cost can be reduced. Therefore, a more reasonable technical solution should be proposed to solve the technical problems existing in the existing technology. Utility Model Content

[0004] In order to overcome at least one of the defects mentioned above, the utility model proposes an automatic box folding machine swing arm action component, which blocks the carton blank to help it remain stable during the folding process, and cooperates with the automated conveying and processing device to fold and form the carton blank in multiple directions after it is fed in. It is not only efficient, but also has good accuracy and consistency, and avoids many defects caused by manual operation.

[0005] In order to achieve the above purpose, the automatic box folding machine disclosed in the utility model can adopt the following technical solutions:

[0006] A swing arm action component of an automatic box folding machine, the swing arm action component is used to press the carton blank and serve as an internal stop for folding, so as to facilitate the folding edge to form a more consistent structure. The structure of the swing arm action component is not limited to a single one. It is optimized here and one of the feasible options is proposed: the swing arm action component includes a first swing arm shaft seat and a second swing arm shaft seat, the second swing arm shaft seat is rotatably connected to the first swing arm shaft seat, and the second swing arm shaft seat is connected to a lower swing arm; the lower end of the lower swing arm is provided with an internal stop structure for stopping the folding edge of the carton blank, and the upper or middle part of the lower swing arm is also provided with a deflection push-pull seat, and the swing arm driver is connected to the deflection push-pull seat and drives the lower swing arm to deflect between the stop position and the initial position. When such a scheme is adopted, the swing of the lower swing arm can smoothly switch between the stop position and the initial position, and the stop effect of the folding and forming of the carton blank can be realized.

[0007] Furthermore, the second swing arm shaft seat is connected with a lower limit adjustment block, which cooperates with the lower swing arm and blocks the lower swing arm, and when the lower swing arm deflects to fit the lower limit adjustment block, it reaches the maximum distance of the lower swing. When such a solution is adopted, the lower limit adjustment block can be a metal block and connected to the second swing arm shaft seat by a fastener.

[0008] Furthermore, the structure of the second swing arm shaft seat can be optimized and one feasible option is proposed: the second swing arm shaft seat is connected to a swing arm base, the height of the swing arm base extends toward the top of the lower swing arm, and the lower limit adjustment block is arranged on the top of the swing arm base. When such a solution is adopted, the swing arm base adopts a metal seat block and is fixedly connected to the second swing arm shaft seat.

[0009] Furthermore, the arrangement of the lower limit adjustment block is not limited to a single one. Here, an optimization is made and one of the feasible options is proposed: the lower limit adjustment block is rotatably connected to the swing arm base, and the lower limit adjustment block can adjust the length of the lower swing arm when it rotates relative to the swing arm base. When such a solution is adopted, the deflection swing angle of the lower swing arm can be limited by the lower limit adjustment block.

[0010] Further, the deflection push-pull seat structure can be optimized, and one feasible option is proposed here: the deflection push-pull seat includes a push-pull plate, and the push-pull plate is hinged to the lower end of the swing arm driver. When such a solution is adopted, the push-pull plate and the lower swing arm are integrally formed.

[0011] Furthermore, the swing arm driver can adopt a variety of structures, which are not limited to the only one. Here, an optimization is made and one feasible option is proposed: the swing arm driver includes a telescopic cylinder, the upper end of the swing arm driver is connected to an articulated seat, and the lower end of the swing arm driver is connected to and drives the deflection push-pull seat to move. When such a solution is adopted, the articulated seat is fixedly arranged, and when the swing arm driver moves in telescopic motion, it will deflect relative to the articulated seat.

[0012] Furthermore, the inner stop structure can be constructed in various forms, which are not limited to the only one. Here, an optimization is made and one feasible option is proposed: the inner stop structure includes a lower pressing block, and a lower pressing surface for pressing the paper box blank is formed on the lower pressing block. When such a solution is adopted, the lower pressing surface is a plane, and a flexible pressing layer can also be provided.

[0013] Furthermore, the inner stop structure also includes an inner stop telescopic member, which is connected to the lower pressing block and drives the lower pressing block to rise and fall in the longitudinal direction.

[0014] Furthermore, the matching structure between the lower swing arm and the inner telescopic member is not limited to a single one. An optimization is performed here and one feasible option is proposed: a mounting connecting plate is provided on the lower swing arm, and the inner telescopic member is fixed on the mounting connecting plate.

[0015] Furthermore, the inner stop telescopic member includes a telescopic cylinder, and the inner stop telescopic member can also be a hydraulic telescopic cylinder or an electric telescopic cylinder.

[0016] Compared with the prior art, some beneficial effects of the technical solution disclosed in the utility model include:

[0017] The utility model performs auxiliary fixing processing on the paper box blank through the rocker action component, which can improve the efficiency of folding and forming the paper box blank, and is also convenient for achieving a better folding and forming effect, realizes the automation of paper box forming, and avoids the defects of manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the box folding machine and an enlarged schematic diagram of its local structure.

[0020] Figure 2 It is a schematic diagram of the structure of the box folding machine from a top view and an enlarged schematic diagram of the local structure.

[0021] Figure 3 It is a structural diagram of the box folding machine from a side view and an enlarged schematic diagram of the local structure.

[0022] Figure 4 It is a schematic diagram of the overall structure of the base mechanism.

[0023] Figure 5 It is a schematic diagram of the structure of the supporting frame of the base mechanism.

[0024] Figure 6 Schematic diagram of the transmission mechanism and enlarged diagram of its local structure.

[0025] Figure 7 It is the overall schematic diagram of the synchronization mechanism.

[0026] Figure 8 It is a structural diagram of the mid-position edge clamping mechanism and an enlarged schematic diagram of the local structure.

[0027] Fig. 9 It is a structural diagram of the fixed side operating mechanism and an enlarged diagram of the local structure.

[0028] Fig.10 It is a structural schematic diagram of the pressure plate action component.

[0029] Fig.11 It is a structural diagram of the folding action component.

[0030] Fig.12 It is a structural schematic diagram of the flanging action component.

[0031] Fig.13 It is a structural schematic diagram of the swing arm action component.

[0032] In the above drawings, the meanings of the various marks are as follows:

[0033] 1. Feeding table; 101. Top panel; 102. Connecting panel; 103. Lifting assembly; 104. Carrying frame; 105. Driving motor; 106. Synchronous rod; 2. Fixed side operating mechanism; 201. Long side folding plate; 202. Guide mechanism; 3. Middle position edge pressing mechanism; 301. Feeding guide plate; 302. Middle position guide plate; 303. Guide column; 304. Guide beam; 305. Holding assembly; 4. Moving side operating mechanism; 5. Folding action Components; 501, support frame; 502, mounting plate; 503, second folding seat; 504, connecting vertical plate; 505, height adjustment block; 506, third folding seat; 507, fork connecting block; 508, folding fork; 509, first folding driver; 510, second folding driver; 6, flanging action component; 601, flanging base; 602, flanging arm; 603, shaft hole; 604, flanging shaft; 605, flanging connecting seat; 606, flanging spring ;607, flanging pressure plate; 608, shaft seat structure; 609, driver shaft; 610, clamp; 611, flanging driver; 7, pressure plate action assembly; 701, side pressure plate; 702, connecting plate; 703, telescopic drive structure; 704, adjustment block; 705, pressure plate base; 8, swing arm action assembly; 801, first swing arm shaft seat; 802, second swing arm shaft seat; 803, swing arm base; 804, lower limit adjustment block; 805, lower swing arm; 806 , deflection push-pull seat; 807, installation connecting plate; 808, inner stop telescopic member; 809, lower pressure block; 810, swing arm driver; 9, transmission mechanism; 901, first transmission assembly; 902, second transmission assembly; 903, transition support assembly; 904, third transmission assembly; 905, transmission base; 906, support frame group; 907, lever assembly; 10, synchronization mechanism; 1001, synchronization base; 1002, suction cup member; 11, bottom plate cylinder assembly. DETAILED DESCRIPTION

[0034] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0035] In view of the many defects in the manual operation in the prior art, the following embodiments are optimized to overcome the defects in the prior art.

[0036] Example 1

[0037] like Fig.13 As shown, the present embodiment provides a swing arm action assembly 8 of an automatic box folding machine, the swing arm action assembly 8 is used to press the carton blank and serve as an internal stop for folding, so as to facilitate the folding edge to form a more consistent structure, the structure of the swing arm action assembly 8 is not limited solely, the present embodiment is optimized and one of the feasible options is adopted: the swing arm action assembly 8 includes a first swing arm shaft seat 801 and a second swing arm shaft seat 802, the second swing arm shaft seat 802 is rotatably connected to the first swing arm shaft seat 801, and the second swing arm shaft seat 802 is connected to a lower swing arm 805; the lower end of the lower swing arm 805 is provided with an internal stop structure for stopping the folding edge of the carton blank, and the upper part or the middle part of the lower swing arm 805 is also provided with a deflection push-pull seat 806, the swing arm driver 810 is connected to the deflection push-pull seat 806 and drives the lower swing arm 805 to deflect between the stop position and the initial position. When such a solution is adopted, the lower swing arm 805 can be smoothly switched between the blocking position and the initial position by swinging, and the blocking effect of the folding and forming of the paper box blank can be achieved.

[0038] The second swing arm shaft seat 802 is connected with a lower limit adjustment block 804, which cooperates with the lower swing arm 805 and blocks the lower swing arm 805. When the lower swing arm 805 deflects to fit the lower limit adjustment block 804, the lower swing reaches the maximum distance. When such a solution is adopted, the lower limit adjustment block 804 can be a metal block and connected to the second swing arm shaft seat 802 by a fastener.

[0039] The structure of the second swing arm shaft seat 802 can also be optimized and one of the feasible options is adopted: the second swing arm shaft seat 802 is connected with a swing arm base 803, the height of the swing arm base 803 extends toward the top of the lower swing arm 805, and the lower limit adjustment block 804 is arranged on the top of the swing arm base 803. When such a solution is adopted, the swing arm base 803 adopts a metal seat block and is fixedly connected to the second swing arm shaft seat 802.

[0040] The arrangement of the lower limit adjustment block 804 is not limited to a single one, and this embodiment is optimized and adopts one of the feasible options: the lower limit adjustment block 804 is rotatably connected to the swing arm base 803, and the lower limit adjustment block 804 can adjust the length of the lower swing arm 805 when rotating relative to the swing arm base 803. When such a solution is adopted, the deflection swing angle of the lower swing arm 805 can be limited by the lower limit adjustment block 804.

[0041] The structure of the deflection push-pull seat 806 can be optimized, and this embodiment adopts one of the feasible options: the deflection push-pull seat 806 includes a push-pull plate, and the push-pull plate is hinged to the lower end of the swing arm driver 810. When such a solution is adopted, the push-pull plate and the lower swing arm 805 are integrally formed.

[0042] The swing arm driver 810 can adopt a variety of structures, which are not limited to the only one. This embodiment optimizes and adopts one of the feasible options: the swing arm driver 810 includes a telescopic cylinder, the upper end of the swing arm driver 810 is connected to a hinge seat, and the lower end of the swing arm driver 810 is connected to and drives the deflection push-pull seat 806. When such a solution is adopted, the hinge seat is fixedly arranged, and when the swing arm driver 810 is telescopic, it will deflect relative to the hinge seat.

[0043] The inner retaining structure can be constructed in various forms, which are not limited to the only one. This embodiment optimizes and adopts one of the feasible options: the inner retaining structure includes a lower pressing block 809, and a lower pressing surface for pressing the paper box blank is formed on the lower pressing block 809. When such a solution is adopted, the lower pressing surface is a plane, and a flexible pressing layer can also be provided.

[0044] Preferably, the inner stop structure described in this embodiment further includes an inner stop telescopic member 808, and the inner stop telescopic member 808 is connected to the lower pressing block 809 and drives the lower pressing block 809 to rise and fall in the longitudinal direction.

[0045] The matching structure between the lower swing arm 805 and the inner telescopic member 808 is not limited to a single one. This embodiment is optimized and adopts one of the feasible options: the lower swing arm 805 is provided with a mounting connecting plate 807, and the inner telescopic member 808 is fixed on the mounting connecting plate 807.

[0046] Preferably, the inner stop telescopic member 808 described in this embodiment comprises a telescopic cylinder. The inner stop telescopic member 808 can also be a hydraulic telescopic cylinder or an electric telescopic cylinder.

[0047] During the transportation process of the carton blank, it is also necessary to support it from the bottom to ensure the stability and reliability of the folding. Specifically, this embodiment is optimized and adopts one of the feasible options: it also includes a bottom plate cylinder assembly 11, which is arranged on the base mechanism and used to support the carton blank. When the bottom plate cylinder assembly 11 moves to the upper support position, it contacts and supports the carton blank, and when the bottom plate cylinder assembly 11 retreats to the initial position, it separates from the carton blank. When such a solution is adopted, the bottom plate cylinder assembly 11 moves with the carton blank, supports the carton blank when it is suspended, and separates and cancels the support when the carton blank moves.

[0048] In the process of folding the paper box blank, the two long sides of the paper box blank are also formed by folding. Specifically, this embodiment is optimized and adopts one of the feasible options: the fixed side operating mechanism 2 also includes a long side folding mechanism, and the long side folding mechanism includes a long side folding plate 201 for folding the paper box blank along the long side to form a box cover, and also includes a guiding mechanism 202 for guiding the box cover.

[0049] The guide mechanism 202 is used to keep the box cover open without affecting the folding and forming of the front and rear ports of the box body. The guide mechanism 202 can be constructed in various forms and is not limited to a single form. This embodiment is optimized and adopts one of the feasible options: the guide mechanism 202 includes a guide plate and / or a guide frame.

[0050] Example 2

[0051] like Figure 1 , Figure 2 , Figure 3 As shown, this embodiment provides an automatic box folding machine, comprising:

[0052] Base mechanism, such as Figure 4 , Figure 5 As shown, it is used to support the load and stabilize the entire box folding machine structure;

[0053] A feeding mechanism, arranged on the base mechanism, for adjusting the carton blank and feeding it into the folding mechanism;

[0054] Transmission mechanism 9, such as Figure 6 , Figure 7 As shown, it cooperates with the feeding mechanism and is used to drive the carton blank to move forward along the set direction, and when the carton blank moves to the folding mechanism, the transmission mechanism 9 keeps the carton blank suspended through the synchronization mechanism 10, and when the folding is completed, the synchronization mechanism 10 releases the carton blank from suspension and continues to move;

[0055] Folding mechanism, such as Figures 9 to 13 As shown, it includes a fixed side operating mechanism 2 and a movable side operating mechanism 4 arranged on the base mechanism. The fixed side operating mechanism 2 and the movable side operating mechanism 4 are arranged opposite to each other and are used to cooperate in folding the front and rear ends, left and right sides and the top cover of the paper box blank to form a complete box body.

[0056] The automatic box folding machine disclosed in this embodiment is loaded by a base mechanism. The carton blank is transported from the feeding mechanism to the transmission mechanism 9, and its multiple sides are folded through the folding mechanism. The long sides of the carton blank are folded at the folding position of the folding mechanism to form vertical side panels and a box cover on both sides, and the box cover is kept in an open state and continues to be transported backward; when transported to the first folding position, the front end of the carton blank is folded inward and turned up to complete the closure of the front end of the box body; when transported to the second folding position, the rear end of the carton blank is folded inward and turned up to complete the closure of the rear section of the box body. The opened box body can be obtained by continuing to transport it backward, and can be directly used as packaging.

[0057] The base mechanism can be in various forms, which are not limited to the only one. This embodiment optimizes and adopts one of the feasible options: the base mechanism includes a carrier frame 104, on which a plurality of drive motors 105 are arranged, and the drive motors 105 are coordinated to operate synchronously through a synchronization rod 106, and the synchronization rod 106 is used to cooperate with the feeding mechanism and the transmission mechanism 9 and provide driving force. When such a solution is adopted, the base mechanism can be formed by splicing steel columns and steel beams.

[0058] In order to ensure that the structure of the carton blank is more stable during the folding process and can be bonded simultaneously, the specific solution is not limited to the only one. This embodiment is optimized and adopts one of the feasible options: it also includes a glue dispensing mechanism, which is used to dispense glue on the carton blank to assist the carton blank in folding and bonding. When such a solution is adopted, the glue dispensing mechanism includes a glue dispensing head and dispenses glue on the corresponding veneer of the folded edge or the box body.

[0059] The feeding mechanism can be used for temporary storage of carton blanks, and provides a platform surface for guiding the carton blanks to cooperate with the transmission mechanism 9. The specific structure is not limited to a single one. This embodiment is optimized and adopts one of the feasible options: the feeding mechanism includes a feeding table 1 for placing carton blanks, and the front side of the feeding table 1 is aligned with the transmission mechanism 9 so that the carton blanks can move in coordination with the transmission mechanism 9; the front side of the feeding table 1 is also provided with a lifting component 103, and the lifting component 103 is used to lift the folding edge of the carton blank so as to cooperate with the folding mechanism. When such a solution is adopted, the lifting component 103 can use a pneumatic telescopic cylinder or a hydraulic telescopic cylinder as a power part to lift the front end of the carton blank so that it can be smoothly put on the transmission mechanism 9.

[0060] The structure of the re-feeding platform 1 can adopt various forms, which are not limited to the only one. This embodiment is optimized and adopts one of the feasible options: the feed platform 1 includes a feed frame, the top of the feed frame is connected to the top panel 101 and the connecting panel 102, and the side of the feed frame is connected to the side panel; the lifting component 103 is arranged on the feed frame and located on the outside of the connecting panel 102, and when the carton blank reaches the edge of the connecting panel 102, it is lifted upward by the lifting component 103. When such a solution is adopted, the top panel 101 and the connecting panel 102 are made of metal plates, and the lifting component 103 is located at the edge of the connecting panel 102. When the carton blank reaches the edge of the connecting panel 102, it is lifted and smoothly goes up to the transmission mechanism 9, and then folded and formed by the folding mechanism.

[0061] The transmission mechanism 9 drives the carton blank to move forward, suspend and fold, and transport it backward after forming. The transmission mechanism 9 can be set in various forms, which are not limited to the only one. This embodiment is optimized and adopts one of the feasible options: the transmission mechanism 9 includes a first transmission component 901 and a second transmission component 902, which are arranged in succession and used to drive the carton blank to move along the folding mechanism and suspend to complete the folding; the first transmission component 901 and the second transmission component 902 are both provided with a synchronization mechanism 10 for matching the carton blank. When such a scheme is adopted, the first transmission component 901 and the second transmission component 902 are arranged in parallel and have an overlapping section. When the carton blank reaches the overlapping section, it can be transitioned from the first transmission component 901 to the second transmission component 902.

[0062] The structures of the first transmission assembly 901 and the second transmission assembly 902 can adopt a variety of schemes, which are not limited to the only one. This embodiment is optimized and adopts one of the feasible options: the first transmission assembly 901 and the second transmission assembly 902 both include a synchronous belt, which is driven by the drive motor 105 and reciprocates; the synchronous belt is connected to the synchronization mechanism 10 and drives the synchronization mechanism 10 to reciprocate synchronously. When such a scheme is adopted, the drive motor 105 adopts a servo motor, and the synchronization mechanism 10 is used to connect the carton blank and keep synchronous movement.

[0063] The synchronization mechanism 10 is used to carry the carton blank to move synchronously, which can be realized by a variety of schemes, which are not limited to the only one. This embodiment is optimized and adopts one of the feasible options: the synchronization mechanism 10 includes a synchronization base 1001, and a plurality of suction cups 1002 are arranged on the synchronization base 1001. The suction cups 1002 are connected to the suction cup air path and used to absorb the carton blank. When the carton blank reaches the transmission mechanism 9, the suction cups 1002 fit the carton blank and discharge air through the suction cup air path to form negative pressure absorption, thereby driving the carton blank to move synchronously, and the negative pressure absorption is released by introducing air through the suction cup air path. When such a scheme is adopted, the suction cups 1002 are arranged upward, and when the carton blank is located above the suction cups 1002, the two fit together. After the suction cup air path discharges the internal gas, the carton blank can be firmly absorbed, thereby driving the carton blank to move synchronously.

[0064] The structure of the synchronous base 1001 is optimized and one of the feasible options is adopted: an air cavity is formed in the synchronous base 1001 and connected to the suction cup installation port on its surface, the suction cup is connected to the suction cup installation port and connected to the air cavity; the air cavity is also connected to the air inlet and the air outlet on the synchronous base, and the air inlet and the air outlet are respectively provided with an air inlet control component and an air outlet control component. When such a solution is adopted, the air inlet control component and the air outlet control component on the synchronous base 1001 include a throttle valve.

[0065] When the transmission mechanism 9 drives the carton blank to move and transition, it maintains a smooth transition and avoids jamming or interference. Therefore, it can be achieved by adjusting the structure of the transmission mechanism 9, which is not limited to the only one. This embodiment is optimized and adopts one of the feasible options: the transmission mechanism 9 also includes a transition support assembly 903, the transition support assembly 903 includes a column and a transition top plate on the column, the transition top plate extends from the first transmission assembly 901 to the second transmission assembly 902, and the transition top plate includes an upwardly inclined support surface. When such a solution is adopted, the transition support assembly 903 is arranged on the base mechanism, and is lifted up when the carton blank moves to the support assembly with the transmission mechanism 9.

[0066] In order to transport the carton blank backward, the present embodiment optimizes the transmission mechanism 9 and adopts one of the feasible options: the transmission mechanism 9 further includes a third transmission assembly 904, which is connected to the second transmission assembly 902 and is used to transport the carton blank backward, and a lever assembly 907 is provided on the third transmission assembly 904 to move the carton blank forward. When such a solution is adopted, the lever assembly 907 moves synchronously with the carton blank.

[0067] The lever assembly 907 can be set to a variety of structures, which are not limited to the only one. This embodiment is optimized and adopts one of the feasible options: the lever assembly 907 includes a lever arm that is set on the third transmission assembly 904 and circulates with the third transmission assembly 904. When the carton blank moves with the second transmission assembly 902 and reaches the third transmission assembly 904, it is moved by the lever arm. When such a solution is adopted, the lever arm is hinged with the third transmission assembly 904 and can deflect within a certain angle in the longitudinal direction.

[0068] The specific installation structure of the transmission mechanism 9 is not limited to a single one. This embodiment is optimized and adopts one of the feasible options: the transmission mechanism 9 also includes a transmission frame, which includes a transmission base 905 and a plurality of support frame groups 906 arranged on the transmission base 905. The first support frame group 906 arranged on the transmission base 905 is used to cooperate with the fixing of the first transmission assembly 901, the second support frame group 906 is used to cooperate with the fixing of the second transmission assembly 902, and the third support frame group 906 is used to cooperate with the fixing of the third transmission assembly 904. When such a solution is adopted, the first support frame group 906, the second support frame group 906 and the third support frame group 906 are all detachable structures.

[0069] The third transmission assembly 904 can adopt a variety of transmission structures, which are not limited to the only one. This embodiment is optimized and adopts one of the feasible options: the third transmission assembly 904 includes a transmission chain plate fixed with the third support frame group 906, and the transmission chain plate is provided with a chain that circulates and moves forward, and the transmission chain plate is also connected to a third drive motor 105 for driving the chain to move forward. When such a solution is adopted, the lever assembly 907 is arranged on the chain and moves synchronously and cyclically with the chain.

[0070] In the process of the carton blank being driven forward, in order to maintain the stability of the carton blank, the carton blank is limited and pressed, which can be specifically adopted in a variety of ways, which are not limited to the only one. This embodiment is optimized and adopts one of the feasible options: Figure 8 As shown, it also includes a middle edge pressing mechanism 3 for pressing the carton blank from below to keep the carton blank in contact with the transmission mechanism 9, and the middle edge pressing mechanism 3 includes a middle guide plate 302 arranged along the traveling direction of the carton blank, the middle guide plate 302 is arranged horizontally, and the lower surface of the middle guide plate 302 forms a horizontal middle guide surface, and the two sides of the middle guide plate 302 form upwardly curved side guide surfaces. When such a scheme is adopted, a travel gap is formed between the middle guide plate 302 and the conveying surface of the transmission mechanism 9, and the carton blank enters the travel gap to maintain stable conveying.

[0071] During the process of the carton blank moving, it is also guided into the moving gap. The specific structure is not limited to the only one. This embodiment is optimized and adopts one of the feasible options: the front end of the middle guide plate 302 is connected to the feed guide plate 301, the width of the feed guide plate 301 is greater than the width of the middle guide plate 302, and the lower surface of the feed guide plate 301 is a horizontal guide surface, and the two sides of the feed guide plate 301 form upwardly curved side guide surfaces. When such a solution is adopted, the feed guide plate 301 and the middle guide plate 302 can be integrally formed, or they can be connected and fixed by fasteners.

[0072] The middle guide plate 302 is provided with a guide frame, and the guide frame is provided with a retaining assembly 305 .

[0073] The retaining assembly 305 can adopt a variety of structures. This embodiment optimizes and adopts one of the feasible options: the retaining assembly 305 moves outward toward both sides of the guide frame and forms a tight structure. When such a solution is adopted, the retaining assembly 305 can help the guide frame maintain an intermediate position between the fixed side operating mechanism 2 and the movable side operating mechanism 4.

[0074] The structure of the holding assembly 305 can be constructed in various forms, which are not limited to the only one. This embodiment optimizes and adopts one of the feasible options: the holding assembly 305 includes a horizontally arranged X-shaped telescopic frame, and a tightening block is arranged on the X-shaped telescopic frame. When the X-shaped telescopic frame is shortened, the tightening block moves outward toward the two sides of the guide frame. When such a solution is adopted, the X-shaped telescopic frame can be kept stable by tightening the two sides.

[0075] In order to facilitate sliding and telescopic, this embodiment is optimized and adopts one of the feasible options: the guide frame is provided with a slide rail, and the slide rail is provided with a plurality of sliders, the X-shaped telescopic frame is connected with at least two sliders, and when the two sliders are close to each other, the X-shaped telescopic frame is pushed to shorten. When such a solution is adopted, the slide rail and the slider can be provided with a notch structure to prevent loosening.

[0076] The guide frame structure can be constructed in various forms, which are not limited to the only one. This embodiment is optimized and adopts one of the feasible options: the guide frame includes a plurality of guide columns 303 vertically connected to the middle guide plate 302, the upper ends of the guide columns 303 are connected to the guide beams 304, and the retaining assembly 305 is arranged on the guide beams 304. When such a solution is adopted, the guide beams 304 are extended along the traveling direction of the carton blank.

[0077] The fixed side operating mechanism 2 and the mobile side operating mechanism 4 can be constructed in a variety of schemes, which are not limited to the only one. This embodiment is optimized and adopts one of the feasible options: the fixed side operating mechanism 2 includes a fixed side operating frame, which is fixedly connected to the base mechanism; the mobile side operating mechanism 4 includes a mobile side operating frame, which is slidably connected to the base mechanism and is relatively close to or away from the fixed side operating mechanism 2. When such a scheme is adopted, the distance between the fixed side operating mechanism 2 and the mobile side operating mechanism 4 can be adjusted, so as to facilitate the folding operation of paper box blanks of different sizes.

[0078] The specific composition structure of the fixed side operating mechanism 2 can be constructed in various forms, which are not limited to the only one. This embodiment is optimized and adopts one of the feasible options: the fixed side operating frame and the mobile side operating frame are correspondingly provided with a pressing plate action component 7 for pressing against the carton blank, a folding action component 5 for controlling the horizontal folding of the flap at the front and rear ports of the carton blank, a flanging action component 6 for controlling the longitudinal folding of the flap at the front and rear ports of the carton blank, and a swing arm action component 8 for serving as a folding inner stop. When such a scheme is adopted, the two sides of the carton blank are pressed and fitted by the pressing plate action component 7, the folding edges on both sides of the carton blank are turned inward by the folding action component 5, and the folding edges at the ports of the carton blank are folded upward by the flanging action component 6. In the above process, the swing arm action component 8 is used as an inner stop for folding, so as to facilitate the consistency of folding.

[0079] The pressing plate action assembly 7 can be constructed into a variety of structures, which are not limited to the only one. This embodiment optimizes and adopts one of the feasible options: the pressing plate action assembly 7 includes a pressing plate base 705 and a side pressing plate 701, and the side pressing plate 701 is close to or away from the pressing plate base 705 in the horizontal direction. When the side pressing plate 701 is away from the pressing plate base 705, it is attached to and pressed against the two side surfaces of the carton blank, and when the side pressing plate 701 is close to the pressing plate base 705, the carton blank is released. When such a solution is adopted, the side pressing plate 701 is formed with a side pressing surface that is attached to the side surface of the carton blank.

[0080] In order to perform automated pressing plate movement, the composition of the pressing plate movement assembly 7 is optimized and improved, and this embodiment adopts one of the feasible options: a pressing plate driver is provided between the side pressing plate 701 and the pressing plate base 705, and the pressing plate driver includes a telescopic driving structure 703, and the telescopic driving structure 703 drives the side pressing plate 701 to approach or move away from the pressing plate base 705. When such a solution is adopted, the pressing plate driver can adopt an electric driving component, a hydraulic driving component or a pneumatic driving component.

[0081] Preferably, the pressure plate driver described in this embodiment includes a telescopic cylinder.

[0082] When setting the pressure plate driver, it can be realized through various solutions, which are not limited to the only one. This embodiment optimizes and adopts one of the feasible options: the side pressure plate 701 is provided with a connecting plate 702, and the telescopic driving structure 703 of the pressure plate driver is fixed with the connecting plate 702. When such a solution is adopted, the connecting plate 702 and the side pressure plate 701 can be integrally formed, or connected and fixed by fasteners.

[0083] The structure of the pressure plate base 705 can also be optimized. This embodiment adopts one of the feasible options: the pressure plate base 705 is provided with an adjustment block 704, which is arranged corresponding to the pressure plate driver and is used to limit the setting position of the pressure plate driver. When such a solution is adopted, the adjustment block 704 is connected to the pressure plate base 705 through a fastener and can rotate relative to the pressure plate base 705, thereby adjusting the relative position with the pressure plate base 705, thereby adjusting the setting position of the pressure plate base 705.

[0084] The structure of the pressure plate base 705 can be constructed in various forms, which are not limited to the only one. This embodiment optimizes and adopts one of the feasible options: the pressure plate base 705 includes a bottom plate, and a plurality of connection holes are formed on the bottom plate; upright plates are formed on two adjacent sides of the bottom plate, and the upright plates on the two sides are integrally formed with the bottom plate. When such a solution is adopted, the upright plates and the bottom plate are integrally formed to improve the overall strength and reliability.

[0085] The structure of the upright plate can be constructed in various forms, which is not the only one. This embodiment optimizes and adopts one of the feasible options: the upright plate is formed with a mounting portion extending forward. When such a solution is adopted, the mounting portion is connected to the fixed pressure plate driver.

[0086] The structure of the hemming action component 5 is not limited to a single one. This embodiment is optimized and adopts one of the feasible options: the hemming action component 5 includes a first hemming seat and a second hemming seat 503, the second hemming seat 503 is slidably arranged on the first hemming seat, and a first hemming driver 509 is arranged between the first hemming seat and the second hemming seat 503 to control relative movement; a third hemming seat 506 is arranged on the second hemming seat 503, and a hemming fork 508 is arranged on the third hemming seat 506, and the hemming fork 508 is controlled to deflect by the second hemming driver 510. When such a scheme is adopted, the first hemming driver 509 controls the second hemming seat 503 to move forward and backward, and the second hemming driver 510 controls the hemming fork 508 on the third hemming seat 506 to deflect horizontally, thereby realizing the lateral folding of the hemming at the port of the paper box blank.

[0087] The structure of the first hemming seat is not limited to a single one, and this embodiment is optimized and adopts one of the feasible options: the first hemming seat includes a support frame 501 and a mounting plate 502, the mounting plate 502 is fixed on the support frame 501, the second hemming seat 503 cooperates with the mounting plate 502, and a slide rail structure is provided between the second hemming seat 503 and the mounting plate 502. When such a solution is adopted, the second hemming seat 503 slides back and forth relative to the first hemming seat through the slide rail structure.

[0088] The structure and installation method of the first hem folding driver 509 are not limited to a single one. This embodiment is optimized and adopts one of the feasible options: the first hem folding driver 509 includes a telescopic cylinder, one end of which is fixed to the mounting plate 502, and the other end is connected to the second hem folding seat 503 and drives the second hem folding seat 503 to slide back and forth along the slide rail structure. When such a solution is adopted, the first hem folding driver 509 can also use an electric telescopic cylinder and a hydraulic telescopic cylinder.

[0089] The structure of the second folding seat 503 can also be constructed in various forms, which are not limited to the only one. This embodiment is optimized and adopts one of the feasible options: the second folding seat 503 includes a straight L-shaped plate, the lower surface of the L-shaped plate cooperates with the slide rail structure, and the upper surface of the L-shaped plate is connected and cooperated with the third folding seat 506. When such a solution is adopted, the entire L-shaped plate slides back and forth on the first folding seat, and drives the third folding seat 506 to move synchronously.

[0090] The structure of the second folding driver 510 can be constructed in various forms and is not limited to a single one. This embodiment is optimized and adopts one of the feasible options: the second folding driver 510 includes a telescopic cylinder, one end of the telescopic cylinder is matched to the second folding seat 503, and the other end is matched to the folding fork 508. The telescopic cylinder drives the folding fork 508 to deflect during the extension or shortening process.

[0091] When the second hemming driver 510 uses a telescopic cylinder, the arrangement of the telescopic cylinder is not limited to a single one. This embodiment optimizes and adopts one of the feasible options: the number of the telescopic cylinders is two and they are arranged at intervals in the longitudinal direction, and the two telescopic cylinders are respectively matched to the upper surface and the lower surface of the third hemming seat 506. When such a solution is adopted, the two telescopic cylinders are synchronously extended and retracted, and the stability of the deflection hemming process can be improved due to the upper and lower symmetrical arrangement of the third hemming seat 506.

[0092] When the telescopic cylinder is connected to the L-shaped plate, it can be realized through a variety of solutions, which are not limited to the only one. This embodiment optimizes and adopts one of the feasible solutions: the L-shaped plate is provided with a connecting plate 504, the end of the telescopic cylinder is horizontally hinged to the connecting plate 504, and the front end of the telescopic cylinder is horizontally hinged to the folding fork 508. When such a solution is adopted, the connecting plate 504 can be integrally formed with the L-shaped plate, or can be welded and fixed, or connected and formed by fasteners.

[0093] The structure of the third hem folding seat 506 is not limited to a single one, and this embodiment is optimized and adopts one of the feasible options: the third hem folding seat 506 includes a fork connecting plate 702 and a height adjustment block 505, and the fork connecting plate 702 is connected to the second hem folding seat 503 through the height adjustment block 505 and slides synchronously with the second hem folding seat 503. When such a solution is adopted, the hem folding fork 508 includes at least two toggle rods.

[0094] The specific structure and connection setting mode of the shift fork can adopt multiple schemes. This embodiment optimizes and adopts one of the feasible options: the folding fork 508 includes a rotating head, which is rotatably arranged on the third folding seat 506, and the rotating head is horizontally hinged with the second folding driver 510, and the rotating head is connected to a shifting rod for folding the paper box blank. When such a scheme is adopted, the rotating head is connected and matched with the third folding seat 506 through a rotating shaft and a bearing structure.

[0095] The height adjustment block 505 adopts an integral structure, and this embodiment is optimized and adopts one of the feasible options: the height adjustment block 505 includes a cushion block, and the cushion block is connected and fixed to the second folding seat 503 through a fastener. When such a solution is adopted, the fastener can be a bolt.

[0096] The flanging action component 6 can be constructed in various forms, which are not limited to the only form. This embodiment is optimized and adopts one of the feasible options: the flanging action component 6 includes a flanging base 601, and a folding arm 602 is arranged on the flanging base 601. The folding arm 602 rotates relative to the flanging base 601 and is connected to the folding arm 602. The flanging shaft 604 drives the flanging pressing plate 607 to deflect between the flat position and the flanging position. When the flanging pressing plate 607 is in the flat position, it is lower than the bottom of the carton blank and allows the carton blank to pass from above. When the flanging pressing plate 607 is in the flanging position, it drives the folding edge of the port of the carton blank to be folded longitudinally. When such a solution is adopted, the port sealing plate of the carton blank is driven to flip up by the flanging action component 6.

[0097] The flanging base 601 can be implemented through a variety of schemes when in action. This embodiment is optimized and adopts one of the feasible options: a flanging driver 611 is provided on the flanging base 601, and the flanging driver 611 cooperates with the flanging arm 602 and is used to drive the flanging arm 602 to deflect, thereby driving the flanging shaft 604 to rotate to cause the flanging pressure plate 607 to deflect.

[0098] The structure of the flange base 601 can be constructed in various forms. This embodiment is optimized and adopts one of the feasible options: the flange base 601 is provided with an axle seat structure 608, and the axle seat structure 608 is provided with a drive shaft 609 that rotates relative to the flange base 601, and the end of the flange drive 611 is connected and cooperated with the drive shaft 609.

[0099] The structure of the driver shaft 609 can be optimized, and this embodiment adopts one of the feasible options: the driver shaft 609 is provided with a clamping groove, a clamping plate 610 is installed and fixed in the clamping groove, and the flange driver 611 is connected and fixed to the clamping plate 610 and rotates synchronously with the driver shaft 609. When such a solution is adopted, the clamping plate 610 is embedded in the clamping groove, and when the driver shaft 609 rotates, the clamping plate 610 is driven to rotate synchronously.

[0100] Preferably, the flanging driver 611 described in this embodiment includes a telescopic cylinder.

[0101] In order to make the folding arm 602 drive the flanging shaft 604 to move more smoothly, this embodiment is optimized and adopts one of the feasible options: the middle part of the folding arm 602 is formed with an axis hole 603 and is rotatably connected with the folding base, the axis hole 603 extends to the end of the folding arm 602 to form a first extension section and is hingedly matched with the flanging driver 611; the axis hole 603 extends to the front end of the folding arm 602 to form a second extension section and is connected with the flanging shaft 604. When such a solution is adopted, the first extension section and the second extension section of the folding arm 602 are integrally formed.

[0102] The structure of the flanging shaft 604 is optimized, and this embodiment adopts one of the feasible options: the flanging shaft 604 is provided with a flanging connection seat 605 for connecting the flanging pressure plate 607, and the flanging connection seat 605 is synchronously turned with the flanging shaft 604 and drives the flanging pressure plate 607 to deflect synchronously. When such a solution is adopted, the flanging connection seat 605 adopts an integral connection block and is connected and fixed to the flanging shaft 604.

[0103] In order to improve the protection effect of the paper box blank, the structure of the flanging pressing plate 607 is optimized, and the following feasible option is proposed: a flanging spring piece 606 is arranged between the flanging pressing plate 607 and the flanging connecting seat 605. When such a solution is adopted, the number of the flanging spring pieces 606 is several, and metal spring pieces can be used.

[0104] The arrangement of the flanged spring pieces 606 is optimized and one of the feasible options is adopted: a plurality of flanged spring pieces 606 are arranged at intervals along the length direction of the flanged connecting seat 605 .

[0105] Preferably, the flanged spring piece 606 described in this embodiment includes a Z-shaped spring piece.

[0106] The swing arm action assembly 8 is used to press the carton blank and serve as an internal stop for folding, so as to facilitate the folding to form a more consistent structure. The structure of the swing arm action assembly 8 is not limited to a single one. This embodiment is optimized and adopts one of the feasible options: the swing arm action assembly 8 includes a first swing arm shaft seat 801 and a second swing arm shaft seat 802, the second swing arm shaft seat 802 is rotatably connected to the first swing arm shaft seat 801, and the second swing arm shaft seat 802 is connected to a lower swing arm 805; the lower end of the lower swing arm 805 is provided with an internal stop structure for stopping the folding edge of the carton blank, and the upper or middle part of the lower swing arm 805 is also provided with a deflection push-pull seat 806, and the swing arm driver 810 is connected to the deflection push-pull seat 806 and drives the lower swing arm 805 to deflect between the stop position and the initial position. When such a scheme is adopted, the swing of the lower swing arm 805 can smoothly switch between the stop position and the initial position, and realize the stop effect of the folding and forming of the carton blank.

[0107] The second swing arm shaft seat 802 is connected with a lower limit adjustment block 804, which cooperates with the lower swing arm 805 and blocks the lower swing arm 805. When the lower swing arm 805 deflects to fit the lower limit adjustment block 804, the lower swing reaches the maximum distance. When such a solution is adopted, the lower limit adjustment block 804 can be a metal block and connected to the second swing arm shaft seat 802 by a fastener.

[0108] The structure of the second swing arm shaft seat 802 can also be optimized and one of the feasible options is adopted: the second swing arm shaft seat 802 is connected with a swing arm base 803, the height of the swing arm base 803 extends toward the top of the lower swing arm 805, and the lower limit adjustment block 804 is arranged on the top of the swing arm base 803. When such a solution is adopted, the swing arm base 803 adopts a metal seat block and is fixedly connected to the second swing arm shaft seat 802.

[0109] The arrangement of the lower limit adjustment block 804 is not limited to a single one, and this embodiment is optimized and adopts one of the feasible options: the lower limit adjustment block 804 is rotatably connected to the swing arm base 803, and the lower limit adjustment block 804 can adjust the length of the lower swing arm 805 when rotating relative to the swing arm base 803. When such a solution is adopted, the deflection swing angle of the lower swing arm 805 can be limited by the lower limit adjustment block 804.

[0110] The structure of the deflection push-pull seat 806 can be optimized, and this embodiment adopts one of the feasible options: the deflection push-pull seat 806 includes a push-pull plate, and the push-pull plate is hinged to the lower end of the swing arm driver 810. When such a solution is adopted, the push-pull plate and the lower swing arm 805 are integrally formed.

[0111] The swing arm driver 810 can adopt a variety of structures, which are not limited to the only one. This embodiment optimizes and adopts one of the feasible options: the swing arm driver 810 includes a telescopic cylinder, the upper end of the swing arm driver 810 is connected to a hinge seat, and the lower end of the swing arm driver 810 is connected to and drives the deflection push-pull seat 806. When such a solution is adopted, the hinge seat is fixedly arranged, and when the swing arm driver 810 is telescopic, it will deflect relative to the hinge seat.

[0112] The inner retaining structure can be constructed in various forms, which are not limited to the only one. This embodiment optimizes and adopts one of the feasible options: the inner retaining structure includes a lower pressing block 809, and a lower pressing surface for pressing the paper box blank is formed on the lower pressing block 809. When such a solution is adopted, the lower pressing surface is a plane, and a flexible pressing layer can also be provided.

[0113] Preferably, the inner stop structure described in this embodiment further includes an inner stop telescopic member 808, and the inner stop telescopic member 808 is connected to the lower pressing block 809 and drives the lower pressing block 809 to rise and fall in the longitudinal direction.

[0114] The matching structure between the lower swing arm 805 and the inner telescopic member 808 is not limited to a single one. This embodiment is optimized and adopts one of the feasible options: the lower swing arm 805 is provided with a mounting connecting plate 807, and the inner telescopic member 808 is fixed on the mounting connecting plate 807.

[0115] Preferably, the inner stop telescopic member 808 described in this embodiment comprises a telescopic cylinder. The inner stop telescopic member 808 can also be a hydraulic telescopic cylinder or an electric telescopic cylinder.

[0116] During the transportation process of the carton blank, it is also necessary to support it from the bottom to ensure the stability and reliability of the folding. Specifically, this embodiment is optimized and adopts one of the feasible options: it also includes a bottom plate cylinder assembly 11, which is arranged on the base mechanism and used to support the carton blank. When the bottom plate cylinder assembly 11 moves to the upper support position, it contacts and supports the carton blank, and when the bottom plate cylinder assembly 11 retreats to the initial position, it separates from the carton blank. When such a solution is adopted, the bottom plate cylinder assembly 11 moves with the carton blank, supports the carton blank when it is suspended, and separates and cancels the support when the carton blank moves.

[0117] In the process of folding the paper box blank, the two long sides of the paper box blank are also formed by folding. Specifically, this embodiment is optimized and adopts one of the feasible options: the fixed side operating mechanism 2 also includes a long side folding mechanism, and the long side folding mechanism includes a long side folding plate 201 for folding the paper box blank along the long side to form a box cover, and also includes a guiding mechanism 202 for guiding the box cover.

[0118] The guide mechanism 202 is used to keep the box cover open without affecting the folding and forming of the front and rear ports of the box body. The guide mechanism 202 can be constructed in various forms and is not limited to a single form. This embodiment is optimized and adopts one of the feasible options: the guide mechanism 202 includes a guide plate and / or a guide frame.

[0119] The above are the implementation methods listed in this embodiment, but this embodiment is not limited to the above optional implementation methods. Those skilled in the art can arbitrarily combine the above methods to obtain other various implementation methods. Anyone can derive other various implementation methods under the inspiration of this embodiment. The above specific implementation methods should not be understood as limiting the protection scope of this embodiment. The protection scope of this embodiment should be based on the definition in the claims.

Claims

1. An automatic box folding machine swing arm action assembly, characterized in that: The invention comprises a first swing arm shaft seat (801) and a second swing arm shaft seat (802), wherein the second swing arm shaft seat (802) is rotatably connected to the first swing arm shaft seat (801), and the second swing arm shaft seat (802) is connected to a lower swing arm (805); an inner stop structure for stopping the folded edge of a paper box blank is arranged at the lower end of the lower swing arm (805), and a deflection push-pull seat (806) is also arranged at the upper part or the middle part of the lower swing arm (805); a swing arm driver (810) is connected to the deflection push-pull seat (806) and drives the lower swing arm (805) to deflect between a stopping position and an initial position.

2. The swing arm action assembly of the automatic box folding machine according to claim 1, characterized in that: The second swing arm shaft seat (802) is connected with a lower limit adjustment block (804), which cooperates with the lower swing arm (805) and forms a block for the lower swing arm (805). When the lower swing arm (805) deflects to fit the lower limit adjustment block (804), the maximum distance of its lower swing is reached.

3. The swing arm action assembly of the automatic box folding machine according to claim 2, characterized in that: The second swing arm shaft seat (802) is connected to a swing arm base (803), the height of the swing arm base (803) extends toward the top of the lower swing arm (805), and the lower limit adjustment block (804) is arranged on the top of the swing arm base (803).

4. The swing arm action assembly of the automatic box folding machine according to claim 3, characterized in that: The lower limit adjustment block (804) is rotatably connected to the swing arm base (803). When the lower limit adjustment block (804) rotates relative to the swing arm base (803), the length of the lower limit adjustment block (804) extending toward the lower swing arm (805) can be adjusted.

5. The swing arm action assembly of the automatic box folding machine according to claim 1, characterized in that: The deflection push-pull seat (806) comprises a push-pull plate, which is hinged to the lower end of the swing arm driver (810).

6. The swing arm action assembly of the automatic box folding machine according to claim 1, characterized in that: The swing arm driver (810) comprises a telescopic cylinder, the upper end of the swing arm driver (810) is connected to a hinged seat, and the lower end of the swing arm driver (810) is connected to and drives the deflection push-pull seat (806) to move.

7. The swing arm action assembly of the automatic box folding machine according to claim 1, characterized in that: The inner stop structure comprises a lower pressing block (809), on which a lower pressing surface for pressing the paper box blank is formed.

8. The swing arm action assembly of the automatic box folding machine according to claim 7, characterized in that: The inner stop structure further comprises an inner stop telescopic member (808), which is connected to the lower pressing block (809) and drives the lower pressing block (809) to rise and fall in the longitudinal direction.

9. The swing arm action assembly of the automatic box folding machine according to claim 8, characterized in that: The lower swing arm (805) is provided with a mounting connection plate (807), and the inner stop telescopic member (808) is fixed on the mounting connection plate (807).

10. The swing arm action assembly of the automatic box folding machine according to claim 1, characterized in that: It also includes a bottom plate cylinder assembly (11), which is arranged on the base mechanism and is used to support the carton blank. When the bottom plate cylinder assembly (11) moves to the upper supporting position, it contacts and supports the carton blank. When the bottom plate cylinder assembly (11) moves back to the initial position, it separates from the carton blank.

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