CN113200400A

CN113200400A - Automatic pile device of printing carton

Info

Publication number: CN113200400A
Application number: CN202110504482.4A
Authority: CN
Inventors: 朱飞
Original assignee: Yancheng Dabaiyang Color Printing Co ltd
Current assignee: Yancheng Dabaiyang Color Printing Co ltd
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2021-08-03

Abstract

The invention relates to an automatic stacking device for printing cartons, which comprises a frame, wherein a first conveying mechanism is arranged on the frame, a plurality of roller carriers and limiting plates are arranged at the top of the first conveying mechanism, a lifting mechanism for oblique synchronous conveying is arranged at the tail end of the first conveying mechanism, a second conveying mechanism which is oppositely and obliquely arranged is arranged at the tail end of the lifting mechanism, a third conveying mechanism which moves oppositely is arranged at the top of the second conveying mechanism, a plurality of push plate mechanisms are arranged in a barrier at the tail ends of the second conveying mechanism and the third conveying mechanism, each push plate mechanism comprises a push plate and a connecting plate, a swing rod is arranged at the other end of the connecting plate, a swing driving mechanism for driving the swing rod to swing back and forth around a positioning shaft is arranged on the barrier, stacking is stably conveyed to a barrier multi-station through the first conveying mechanism, the lifting mechanism, the second conveying mechanism and the third conveying mechanism, a discharging end is driven to lift, the barrier and the push plate mechanism is used for stacking the cartons, the workload, the stacking height and the efficiency are obviously improved.

Description

Automatic pile device of printing carton

Technical Field

The invention relates to an automatic stacking device for a printing carton, and belongs to the technical field of printing carton processing.

Background

The paper box is the most widely used packaging product, and according to different materials, the paper box comprises a corrugated paper box, a single-layer paper box board box and the like, and the paper box is printed at a proper speed by surface treatment and proper printing pressure according to the characteristics of ink, a printing plate and a paper box board, so that the unique packaging characteristic is given to the paper box. The carton among the prior art is cut into carton tiling platelike through printing, directly send into pile device automatic pile back transportation sale or packing operation. The stacking device in the prior art generally comprises one or more sections of synchronous conveyors which are arranged in a straight line or L shape, the conveyors adopt belt type, mesh belt type or drum type structures and are conveyed under the action of rotary friction, and the stacking device has the following defects that (1) a limiting device is lacked, and the adjacent carton boards are influenced to be transported and discharged only by the warping of the carton boards under the action of the gravity of the carton boards and the friction of a conveying machine; (2) the tail end of the fixed multi-section conveying mechanism cannot move, so that the blanking height of the carton boards at the initial stage of stacking is higher than the ground and cannot accurately fall into a transfer station, and the stacking height of the carton at the final stage of stacking is smaller because the stacking height of the carton is close to the tail end of the conveying mechanism; (3) the tail end of the conveying mechanism adopts a fixed enclosing frame to stop the carton board under the inertial action to ensure the level, but the left and right displacement of the carton board in the conveying and blanking processes is easy to cause deflection after the stacking height is increased, so that the stacking height and the transferring stability are limited; (4) the two sides of the stacking device are only limited by the enclosing frame, so that multi-work and adjustment operation according to the width of the carton board are difficult to realize, the stacking height, the stacking efficiency and the stacking effect are poor, and the application requirement is difficult to meet.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides an automatic stacking device for printing cartons.

The invention is realized by the following technical scheme:

an automatic stacking device for printing cartons comprises a rack, wherein a first conveying mechanism is arranged on the rack, a plurality of roller carriers and limiting plates positioned on two sides of the roller carriers are arranged at the top of the first conveying mechanism, and a lifting mechanism for inclined synchronous conveying is arranged at the tail end of the first conveying mechanism;

the roller frame is provided with a plurality of pinch rollers arranged at intervals, the rack is provided with at least two support rods vertically penetrating through the roller frame, the roller frame is provided with a lock rod which is in threaded fit and arranged corresponding to the support rods, and the limiting plate is in an L-shaped structure and is arranged on the support rods;

the first conveying mechanism comprises a driving roller, a driven roller and a first belt arranged outside the driving roller and the driven roller, a first servo motor is arranged on the rack, a motor shaft of the first servo motor and the driving roller are respectively and coaxially connected with a belt pulley, and a transmission belt is arranged outside the belt pulley;

the lifting mechanism comprises a first roller shaft, a second roller shaft and a plurality of second belts arranged outside the first roller shaft and the second roller shaft, a third belt is arranged between the first roller shaft and the driving shaft, a first side plate is arranged between the first roller shaft and the second roller shaft, a first supporting plate positioned at the bottom of the second belt is arranged on the first side plate, and a plurality of lifting plates arranged at intervals are arranged on the second belt;

the tail end of the lifting mechanism is provided with a second conveying mechanism which is obliquely arranged in an opposite direction, and the top of the second conveying mechanism is provided with a third conveying mechanism which moves in an opposite direction;

the second conveying mechanism comprises a third roll shaft and a plurality of fourth belts which are arranged outside the second roll shaft and the third roll shaft and positioned between the adjacent second belts;

the third conveying mechanism comprises a fourth roller shaft, a fifth roller shaft and a plurality of fifth belts which are arranged outside the fourth roller shaft and the fifth roller shaft and located between adjacent fourth belts, the fourth roller shaft and the fifth roller shaft are respectively located at the tops of the third roller shaft and the second roller shaft, a second side plate in a U-shaped structure is arranged between the fourth roller shaft and the third roller shaft, a second support plate located inside the fourth belt is arranged on the second side plate, and at least one support wheel is arranged in the second side plate;

a lifting mechanism for driving the tail ends of the second conveying mechanism and the third conveying mechanism to lift in a reciprocating manner is arranged between the third conveying mechanism and the rack and between the second conveying mechanism and the rack;

bearing seats are arranged on two sides of the fourth roller shaft or the third roller shaft, the lifting mechanism comprises a second servo motor arranged on the rack and a chain which is connected with the bearing seats and is vertically arranged, and chain wheels matched with two ends inside the chain are arranged on a motor shaft of the second servo motor and the rack;

two sides of the rack are provided with first guide holes which are in sliding fit with the third roller shaft and the fourth roller shaft and are vertically arranged, and at least one end of the third roller shaft and at least one end of the fourth roller shaft are provided with meshed gears;

the tail ends of the second conveying mechanism and the third conveying mechanism are provided with enclosing barriers, the enclosing barriers are fixed on the second side plate, a plurality of push plate mechanisms corresponding to adjacent limiting plates are arranged in the enclosing barriers, each push plate mechanism comprises two push plates arranged in opposite directions and a connecting plate arranged on the push plates, and each enclosing barrier is provided with at least one guide rod penetrating through the push plates;

a vertical first pin shaft is arranged between the push plate and one end of the connecting plate, a swing rod is arranged at the other end of the connecting plate, a vertical second pin shaft is arranged between the connecting plate and the swing rod, a positioning shaft is arranged on the swing rod, and a swing driving mechanism for driving the swing rod to swing around the positioning shaft in a reciprocating manner is arranged on the enclosure;

the swing driving mechanism comprises a third servo motor arranged on the third supporting plate and a telescopic cylinder vertically arranged on a motor shaft of the third servo motor, a second guide hole is formed in the swing rod, and a guide column in sliding fit with the second guide hole is vertically arranged on the telescopic cylinder.

The invention has the beneficial effects that:

(1) the first conveying mechanism drives the belt pulley to rotate through the first servo motor, drives the first belt to rotate under the speed reduction transmission of the transmission belt, limits and feeds materials at multiple stations of the limiting plate, presses and attaches the feeding carton boards through the plurality of pressing wheels, and conveys the paper boxes forwards stably; the lifting mechanism is driven to the first roller shaft by rotating the driving shaft and a third belt outside the first roller shaft, and is lifted one by a plurality of lifting plates of the second belt to be conveyed forwards;

(2) the second conveying mechanism drives the third roll shaft and the second roll shaft to synchronously rotate through fourth belt transmission, the third conveying mechanism drives the third roll shaft and a meshing gear on the fourth roll shaft to oppositely rotate to drive an external fifth belt and a fourth belt to oppositely rotate, so that the carton boards are ensured to be conveyed forwards stably, the carton boards are prevented from jumping, blanking is carried out from the tail ends of the second conveying mechanism and the third conveying mechanism, and the enclosure is carried out to ensure that the stacking tail ends are neat;

(3) the lifting mechanism is driven by a second servo motor through a chain wheel and a chain, the third roller shaft and the fourth roller shaft are in sliding fit with the first guide hole, the tail ends of the second conveying mechanism and the third conveying mechanism are driven to lift in a reciprocating mode, the second roller shaft drives the first side plate to deflect around the first roller shaft correspondingly, the inclined included angles of the second conveying mechanism, the third conveying mechanism and the lifting mechanism are changed, the horizontal position of blanking is guaranteed to be unchanged, the height is gradually increased along with stacking, and the blanking stability of the carton board is improved;

(4) the telescopic cylinder is driven to rotate by a third servo motor of the swing driving mechanism, the guide column slides in a second guide hole of the swing rod along with rotation, the swing rod is driven to swing back and forth on a third support plate around the positioning shaft, the swing rod is pulled or pushed by a second pin shaft to be connected with a plate, the plate is pulled or pushed by a first pin shaft to be connected with the push plate, two opposite push plates of the push plate mechanism move back and forth along the guide rod rapidly, paper box plates stacked continuously are pushed to be aligned from two sides, the paper box plate stacking requirements of different widths are met by adjusting the position of a limiting plate and the total length of the telescopic cylinder, the operation amount is improved, the stacking edge is ensured to be aligned, and the stacking height and efficiency are improved.

Drawings

FIG. 1 is a top front perspective view of the present invention.

Figure 2 is a front bottom perspective view of the present invention.

Fig. 3 is a top rear perspective view of the present invention.

FIG. 4 is a top view of the present invention.

FIG. 5 is a side view of the present invention.

The labels in the figure are: the device comprises a frame 1, a first conveying mechanism 2, a roller frame 26, a limit plate 9, a lifting mechanism 3, a pinch roller 10, a support rod 11, a lock rod 12, a drive roller 21, a driven roller 22, a first belt 23, a first servo motor 13, a belt pulley 14, a transmission belt 15, a first roller shaft 31, a second roller shaft 32, a second belt 33, a third belt 16, a first side plate 17, a first support plate 18, a lifting plate 19, a second conveying mechanism 4, a third conveying mechanism 5, a third roller shaft 41, a fourth belt 42, a fourth roller shaft 51, a fifth roller shaft 52, a fifth belt 53, a second side plate 20, a second support plate 24, a support wheel 25, a lifting mechanism 8, a bearing seat 27, a second servo motor 81, a chain 82, a chain wheel 28, a first guide hole 29, a gear 30, a baffle 34, a push plate mechanism 6, a push plate 61, a connecting plate 62, a guide rod 35, a first pin shaft 36, a swing rod 37 and a second pin shaft 38, a positioning shaft 39, a swing driving mechanism 7, a third supporting plate 40, a third servo motor 71, a telescopic cylinder 72, a second guide hole 43, a guide post 44, an outer cylinder 721 and an inner cylinder 722.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

An automatic stacking device for printing cartons comprises a rack 1, wherein a first conveying mechanism 2 is arranged on the rack 1, a plurality of roller carriers 26 and limiting plates 9 positioned on two sides of the roller carriers 26 are arranged at the top of the first conveying mechanism 2, and a lifting mechanism 3 for inclined synchronous conveying is arranged at the tail end of the first conveying mechanism 2;

a plurality of pressing wheels 10 arranged at intervals are arranged on the roller frame 26, at least two supporting rods 11 vertically penetrating through the roller frame 26 are arranged on the frame 1, locking rods 12 which are matched with each other in a threaded manner and are arranged corresponding to the supporting rods 11 are arranged on the roller frame 26, and the limiting plate 9 is in an L-shaped structure and is arranged on the supporting rods 11;

the first conveying mechanism 2 comprises a driving roller 21, a driven roller 22 and a first belt 23 arranged outside the driving roller 21 and the driven roller 22, a first servo motor 13 is arranged on the rack 1, a motor shaft of the first servo motor 13 and the driving roller 21 are respectively and coaxially connected with a belt pulley 14, and a transmission belt 15 is arranged outside the belt pulley 14;

the lifting mechanism 3 comprises a first roller shaft 31, a second roller shaft 32 and a plurality of second belts 33 arranged outside the first roller shaft 31 and the second roller shaft 32, a third belt 16 is arranged between the first roller shaft 31 and the driving shaft, a first side plate 17 is arranged between the first roller shaft 31 and the second roller shaft 32, a first supporting plate 18 positioned at the bottom of the second belt 33 is arranged on the first side plate 17, and a plurality of lifting plates 19 arranged at intervals are arranged on the second belt 33;

the tail end of the lifting mechanism 3 is provided with a second conveying mechanism 4 which is obliquely arranged in an opposite direction, and the top of the second conveying mechanism 4 is provided with a third conveying mechanism 5 which moves in an opposite direction;

the second conveying mechanism 4 comprises a third roller shaft 41 and a plurality of fourth belts 42 which are arranged outside the second roller shaft 32 and the third roller shaft 41 and positioned between the adjacent second belts 33;

the third conveying mechanism 5 comprises a fourth roller shaft 51, a fifth roller shaft 52 and a plurality of fifth belts 53 which are arranged outside the fourth roller shaft 51 and the fifth roller shaft 52 and located between adjacent fourth belts 42, the fourth roller shaft 51 and the fifth roller shaft 52 are respectively located at the tops of the third roller shaft 41 and the second roller shaft 32, a second side plate 20 in a U-shaped structure is arranged between the third roller shaft 41 and the second roller shaft 32, a second supporting plate 24 located inside the fourth belts 42 is arranged on the second side plate 20, and at least one supporting wheel 25 is arranged in the second side plate 20;

a lifting mechanism 8 for driving the tail ends of the second conveying mechanism 4 and the third conveying mechanism 5 to reciprocate is arranged between the third conveying mechanism 5 and the rack 1 and between the second conveying mechanism 4 and the rack 1;

bearing seats 27 are arranged on two sides of the fourth roller shaft 51 or the third roller shaft 41, the lifting mechanism 8 comprises a second servo motor 81 arranged on the rack 1 and a chain 82 which is connected with the bearing seats 27 and is vertically arranged, and chain wheels 28 matched with two ends inside the chain 82 are arranged on a motor shaft of the second servo motor 81 and the rack 1;

two sides of the rack 1 are provided with first guide holes 29 which are in sliding fit with the third roller shaft 41 and the fourth roller shaft 51 and are vertically arranged, and at least one end of the third roller shaft 41 and one end of the fourth roller shaft 51 are provided with meshed gears 30;

the tail ends of the second conveying mechanism 4 and the third conveying mechanism 5 are provided with an enclosing barrier 34, the enclosing barrier 34 is fixed on the second side plate 20, a plurality of push plate mechanisms 6 which are arranged corresponding to the adjacent limiting plates 9 are arranged in the enclosing barrier 34, each push plate mechanism 6 comprises two push plates 61 which are arranged in an opposite mode and a connecting plate 62 arranged on each push plate 61, and at least one guide rod 35 which penetrates through each push plate 61 is arranged on the enclosing barrier 34;

a vertical first pin shaft 36 is arranged between the push plate 61 and one end of the connecting plate 62, a swing rod 37 is arranged at the other end of the connecting plate 62, a vertical second pin shaft 38 is arranged between the connecting plate 62 and the swing rod 37, a positioning shaft 39 is arranged on the swing rod 37, and a swing driving mechanism 7 for driving the swing rod 37 to swing back and forth around the positioning shaft 39 is arranged on the enclosure 34;

a third supporting plate 40 which is parallel to the direction of the guide rod 35 and is adjusted and fixed with the enclosure 34 is arranged on the positioning shaft 39, the swing driving mechanism 7 comprises a third servo motor 71 arranged on the third supporting plate 40 and a telescopic cylinder 72 vertically arranged on a motor shaft of the third servo motor 71, a second guide hole 43 is arranged on the swing rod 37, and a guide column 44 in sliding fit with the second guide hole 43 is vertically arranged on the telescopic cylinder 72;

the telescopic cylinder 72 comprises an outer cylinder 721 and an inner cylinder 722 which are in threaded fit, and the outer cylinder 721 and the inner cylinder 722 are respectively in threaded fit connection with a motor shaft of the third servo motor 71 and the guide column 44.

The working principle of the invention is as follows:

referring to the attached drawings, flat paper box boards of a printing paper box are directly blanked on a first conveying mechanism 2 by a printing cutting mechanism, a belt pulley 14 is driven to rotate by a motor shaft of a first servo motor 13, a driving roller 21 is driven to rotate on a rack 1 under the speed reduction transmission of a transmission belt 15, a first belt 23 and a driven roller 22 are driven to rotate, a locking rod 12 in threaded fit with a supporting rod 11 corresponds to a locking position of an adjusting roller frame 26 on the supporting rod 11, two sides of the paper box boards conveyed by an L-shaped limiting plate 9 are limited, the paper box boards on the first belt 23 are tightly attached to the first belt 23 under the rolling friction action of a plurality of pressing wheels 10, the paper box boards are ensured to be conveyed forwards stably along the movement direction of the first belt 23, the phenomenon that the adjacent paper box boards on the same conveying line are overlapped with each other to influence blanking is avoided, and the blanking position is ensured by limiting;

the lifting mechanism 3 drives the first roller shaft 31 to rotate on the first side plate 17 and the rack 1 through transmission of a third belt 16 arranged outside the rotary driving shaft and the first roller shaft 31, the second roller shaft 32 is supported by the first side plate 17 and the second side plate 20 and is driven by a plurality of second belts 33 to rotate the second roller shaft 32, and in the synchronous rotation process of the second belts 33 and the first belt 23, the second belts 33 are lifted one by the plurality of lifting plates 19 to convey carton boards entering from the first belt 23 forward under the supporting action of the first supporting plate 18;

the second conveying mechanism 4 is driven by a plurality of fourth belts 42 positioned between adjacent second belts 33 to enable the third roller 41 and the second roller 32 to synchronously rotate, the third conveying mechanism is driven by the third roller 41 and the meshing gear 30 on the fourth roller 51 to oppositely rotate to drive the external fifth belt 53 and the fourth belt 42 to oppositely rotate, the fifth roller 52 rotates under the support of the second side plate 20, and the support wheel 25 plays a role in improving the internal support force of the second side plate 20;

the carton board lifted by the lifting mechanism 3 enters between a plurality of fourth belts 42 and fifth belts 53 which rotate oppositely and are adjacently arranged in a staggered way under the stopping and limiting action of a fifth roller shaft 52 of the inclined third conveying mechanism 5, and the second supporting plate 24 plays a supporting role, so that the carton board is ensured to be stably conveyed forwards to the tail end of the second conveying mechanism 4, the carton board is prevented from jumping, and the carton board is discharged from the tail ends of the second conveying mechanism 4 and the third conveying mechanism 5;

the lifting mechanism 8 drives the chain wheel 28 to rotate forward or backward by a motor shaft of the second servo motor 81, so that the chain 82 is meshed with the chain wheel 28 and rotates on the rack 1, the bearing seat 27 is driven to ascend or descend, and the chain stably ascends and descends under the sliding fit action of the third roller shaft 41, the fourth roller shaft 51 and the first guide hole 29, the reciprocating ascending and descending of the tail ends of the second conveying mechanism 4 and the third conveying mechanism 5 are driven, the second side plate 20 drives the second roller shaft 32 and the fifth roller shaft 52 to correspondingly move, the second roller shaft 32 drives the first side plate 17 to correspondingly deflect around the first roller shaft 31, the inclined included angles of the second conveying mechanism 4, the third conveying mechanism 5 and the lifting mechanism 3 are changed, the blanking height is changed without changing the blanking horizontal position, the height is conveniently adjusted to be low at the initial stage of stacking, the height is gradually increased along with the stacking, and the blanking stability of the carton board is improved;

the enclosure 34 is connected with the second side plate 20 and ascends and descends along with the tail ends of the second conveying mechanism 4 and the third conveying mechanism 5, a paper box plate at the tail end is conveyed to the enclosure 34 through the space between the second conveying mechanism 4 and the third conveying mechanism 5 to ensure the parallel and level, a motor shaft of a third servo motor 71 of the swing driving mechanism 7 drives a telescopic cylinder 72 to rotate, a guide column 44 slides in a second guide hole 43 of a swing rod 37 along with the rotation, and the swing rod 37 is driven to swing on a third support plate 40 in a reciprocating mode around a positioning shaft 39;

the oscillating bar 37 swings to pull or push the connecting plate 62 through the second pin shaft 38, the connecting plate 62 pulls or pushes the push plate 61 through the first pin shaft 36, so that the two opposite push plates 61 of the push plate mechanism 6 rapidly reciprocate along the guide rod 35 to push and align the continuously stacked carton boards from two sides, the push plate mechanism 6 is arranged corresponding to the adjacent limiting plate 9, the multi-station operation is ensured, the operation amount is improved, and the stacking edge is ensured to be aligned, so that the stacking height and the stacking efficiency are improved;

through adjusting the mounted position of limiting plate 9 on bracing piece 11, third backup pad 40 is enclosing fender 34 on demountable installation to enclose the parallel guide bar 35 direction of a plurality of hole sites on fender 34 and adjust the installation, dismantle guide post 44 that screw-thread fit connects, through the whole length of screw-thread fit quick adjustment urceolus 721 and inner tube 722, change the swing angle of pendulum rod 37, thereby change both sides push pedal 61 reciprocating motion's distance, satisfy the carton board pile demand of different breadth.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The automatic stacking device for the printing cartons comprises a rack (1), wherein a first conveying mechanism (2) is arranged on the rack (1), and the automatic stacking device is characterized in that a plurality of roller frames (26) and limiting plates (9) positioned on two sides of the roller frames (26) are arranged at the top of the first conveying mechanism (2), a lifting mechanism (3) for inclined synchronous conveying is arranged at the tail end of the first conveying mechanism (2), a second conveying mechanism (4) which is arranged in an opposite inclined manner is arranged at the tail end of the lifting mechanism (3), a third conveying mechanism (5) which moves in an opposite direction is arranged at the top of the second conveying mechanism (4), and a lifting mechanism (8) for driving the tail ends of the second conveying mechanism (4) and the third conveying mechanism (5) to reciprocate is arranged between the third conveying mechanism (5) and the rack (1);

the tail ends of the second conveying mechanism (4) and the third conveying mechanism (5) are provided with an enclosing baffle (34), a plurality of push plate mechanisms (6) which are arranged corresponding to adjacent limiting plates (9) are arranged in the enclosing baffle (34), each push plate mechanism (6) comprises two push plates (61) which are arranged oppositely and a connecting plate (62) arranged on each push plate (61), and at least one guide rod (35) penetrating through each push plate (61) is arranged on the enclosing baffle (34);

be equipped with vertically first round pin axle (36) between push pedal (61) and even board (62) one end, even board (62) other end is equipped with pendulum rod (37), is equipped with vertically second round pin axle (38) between even board (62) and pendulum rod (37), be equipped with location axle (39) on pendulum rod (37), it is used for driving pendulum rod (37) around location axle (39) swing actuating mechanism (7) of reciprocating swing to be equipped with on enclosing fender (34).

2. The automatic stacking device for the printing cartons, as claimed in claim 1, wherein said roller frame (26) is provided with a plurality of spaced rollers (10), said frame (1) is provided with at least two support rods (11) vertically passing through said roller frame (26), said roller frame (26) is provided with a locking rod (12) engaged with said screw threads and disposed corresponding to said support rods (11), said limiting plate (9) is of an L-shaped structure and disposed on said support rods (11).

3. The automatic printed carton stacking device according to claim 1, wherein the first conveying mechanism (2) comprises a driving roller (21), a driven roller (22) and a first belt (23) arranged outside the driving roller (21) and the driven roller (22), a first servo motor (13) is arranged on the frame (1), a motor shaft of the first servo motor (13) and the driving roller (21) are respectively and coaxially connected with a belt pulley (14), and a transmission belt (15) is arranged outside the belt pulley (14).

4. The automatic stacking device for the printing cartons as claimed in claim 3, wherein said lifting mechanism (3) comprises a first roller (31), a second roller (32), and a plurality of second belts (33) disposed outside said first roller (31) and said second roller (32), a third belt (16) is disposed between said first roller (31) and said driving shaft, a first side plate (17) is disposed between said first roller (31) and said second roller (32), a first supporting plate (18) disposed at the bottom of said second belt (33) is disposed on said first side plate (17), and a plurality of lifting plates (19) disposed at intervals are disposed on said second belt (33).

5. An automatic stacking device for printed cartons, according to claim 4, characterised in that said second conveying means (4) comprise a third roller (41), a plurality of fourth belts (42) disposed outside the second roller (32) and the third roller (41) and between adjacent second belts (33).

6. The automatic stacking device for the printing cartons as claimed in claim 5, wherein the third conveying mechanism (5) comprises a fourth roller shaft (51), a fifth roller shaft (52), and a plurality of fifth belts (53) which are arranged outside the fourth roller shaft (51) and the fifth roller shaft (52) and between adjacent fourth belts (42), the fourth roller shaft (51) and the fifth roller shaft (52) are respectively arranged on top of the third roller shaft (41) and the second roller shaft (32), a second side plate (20) which is in a U-shaped structure is arranged between the third roller shaft (41) and the second roller shaft (32), a second support plate (24) which is arranged inside the fourth belts (42) is arranged on the second side plate (20), at least one support wheel (25) is arranged in the second side plate (20), and the enclosure (34) is fixed on the second side plate (20).

7. The automatic stacking device for the printing cartons as claimed in claim 6, wherein bearing seats (27) are arranged on two sides of the fourth roller shaft (51) or the third roller shaft (41), the lifting mechanism (8) comprises a second servo motor (81) arranged on the frame (1) and a chain (82) which is connected with the bearing seats (27) and is vertically arranged, and chain wheels (28) which are matched with two ends inside the chain (82) are arranged on a motor shaft of the second servo motor (81) and the frame (1).

8. An automatic stacking device for printing cartons as claimed in claim 7, characterised in that said frame (1) is provided on both sides with first guide holes (29) slidably engaged with said third (41) and fourth (51) rollers and vertically arranged, and at least one end of said third (41) and fourth (51) rollers is provided with a toothed wheel (30) engaging therewith.

9. The automatic stacking device for the printing cartons as claimed in any one of claims 1 to 8, wherein a third support plate (40) which is parallel to the direction of the guide rod (35) and is adjustable and fixed with the enclosure (34) is arranged on the positioning shaft (39), the swing driving mechanism (7) comprises a third servo motor (71) arranged on the third support plate (40) and a telescopic cylinder (72) vertically arranged on a motor shaft of the third servo motor (71), a second guide hole (43) is arranged on the swing rod (37), and a guide column (44) which is in sliding fit with the second guide hole (43) is vertically arranged on the telescopic cylinder (72).

10. The automatic printed carton stacking device according to claim 9, wherein the telescopic cylinder (72) comprises an outer cylinder (721) and an inner cylinder (722) which are in threaded fit, and the outer cylinder (721) and the inner cylinder (722) are in threaded fit connection with a motor shaft and a guide post (44) of a third servo motor (71), respectively.