CN219584648U - Labeling device for logistics cartons - Google Patents

Abstract

The utility model discloses a labeling device for logistics cartons, and belongs to the technical field of automation. Comprises a labeling platform, a labeling structure, a feeding structure and a discharging structure; the labeling platform is provided with a labeling bracket and two labeling conveying belts; the two labeling conveying belts are respectively positioned at the front side and the rear side of the lower part of the paper box, can move forwards and backwards on the labeling platform, and can synchronously move in opposite directions or in opposite directions; two labeling guide strips are arranged on the labeling support in parallel front and back, and are respectively positioned at the adjacent front and the adjacent rear of the upper part of the carton; the feeding structure comprises a feeding platform, a feeding bracket, a feeding conveying mechanism, a pressing plate, a feeding baffle and a discharging mechanism; the discharging structure comprises a discharging platform, a discharging conveyer belt, a rear bracket, a storage rack, a discharging baffle, a discharging guide bar and a pushing mechanism, wherein the feeding platform, the labeling platform and the discharging conveyer belt are sequentially arranged and flush; the feeding conveying mechanism, the labeling conveying belt at the rear side and the discharging guide strip are sequentially arranged and flush.

Description

Labeling device for logistics cartons

Technical Field

The utility model belongs to the technical field of automation, and particularly relates to a labeling device for a logistics carton.

Background

At present in the commodity circulation field, use commodity circulation goods carton to deposit the packing to the goods, and in order to guarantee that every case goods can let follow-up staff know what kind of goods and commodity circulation process have been deposited to inside, need label on the packing box to seek, and at present when labeling the goods, generally accomplish above-mentioned work through the manual work, but the manual work carries out above-mentioned work, wastes time and energy and very easy wrong condition of pasting the subsides appears.

Of course, the full-automatic labeling device disclosed in the prior art is used for labeling the articles; the utility model discloses a full-automatic labeling device for pesticide bottle, including conveyer, rolling subassembly and unreel the subassembly, the rolling subassembly sets up on the conveyer, be provided with the layer board on the conveyer, unreel the subassembly and set up on the layer board, it has the control rod that is used for controlling unreel the subassembly blowing to articulate on the layer board, be provided with the spring on the control rod, the one end that the control rod was kept away from to the spring is fixed on the layer board, the one end that the control rod kept away from the layer board is provided with the traction lever, be provided with on the conveyer and shell the mark subassembly, the label roll sets up on unreeling the subassembly, and the label backing paper of label roll is walked around the traction lever in proper order, is shelled mark subassembly and rolling subassembly.

The device described above can be used to label both sides of the bottle. The logistics cartons are greatly different from the conventional glass bottles, and are larger and thinner; cannot be transported (toppled) in a conventional manner, nor can it be fed and discharged in a conventional manner.

Disclosure of Invention

In order to solve the problems, the embodiment of the utility model provides a labeling device for a logistics paper box, which can automatically realize feeding, labeling (one side or two sides), discharging and the like of the logistics paper box, has high automation degree and improves the working efficiency. The technical scheme is as follows:

the embodiment of the utility model provides a labeling device for a logistics paper box, which comprises a feeding structure, a discharging structure, a labeling platform 1 and a labeling structure at the front side or/and the rear side above the labeling platform; the labeling platform 1 is provided with a labeling bracket and two labeling conveying belts 2; the two labeling conveying belts 2 are respectively positioned at the front side and the rear side of the lower part of the paper box, are vertically arranged, can move forwards and backwards on the labeling platform 1, synchronously convey the paper box towards the discharging structure, and can synchronously move towards or away from the paper box; two labeling guide strips 3 are arranged on the labeling support in parallel front and back, and the two labeling guide strips 3 are respectively positioned at the adjacent front and the adjacent back of the upper part of the carton; the labeling guide strips 3 are arranged along the left-right direction, and the labeling structure is positioned between the labeling conveying belt 2 and the labeling guide strips 3 at the corresponding side; the feeding structure comprises a feeding platform 4, a feeding support at the rear side of the feeding platform 4, a feeding conveying mechanism arranged on the feeding support along the left-right direction, a pressing plate 7 above the feeding platform 4 and capable of moving forwards and backwards, a feeding baffle 8 at the front of the feeding conveying mechanism and a discharging mechanism 9 at the rear end of the feeding baffle 8 at the discharge end of the feeding platform 4, wherein a plurality of cartons are stacked between the feeding conveying mechanism and the pressing plate 7 forwards and backwards to form a carton stack; the pressing plate 7 is arranged in the left-right direction, is positioned in front of the feeding conveying mechanism and is always propped against the front side of the carton pile; the feeding baffle plate 8 is arranged along the front-back direction, a clearance through which the cartons can pass is formed between the rear end of the feeding baffle plate and the feeding conveying mechanism, and the discharging mechanism 9 can only pass one piece of cartons through the clearance; the discharging structure comprises a discharging platform 10, a discharging conveying belt 11 arranged on the discharging platform 10 along the left and right direction, a rear support at the rear side of the discharging platform 10, a storage rack 12 in front of the discharging platform 10, a discharging baffle 13 on the discharging platform 10 or the rear support, a discharging guide strip 14 on the rear support and a pushing mechanism 15 on the upper part of the rear support, wherein the feeding platform 4, the labeling platform 1 and the discharging conveying belt 11 are sequentially arranged and flush; the discharging conveyor belt 11 is horizontally arranged, is positioned at the lower side of the carton and is positioned right behind the two labeling conveyor belts 2; the discharge baffle 13 is located the top of the discharge end of ejection of compact conveyer belt 11, ejection of compact guide bar 14 is located the top of ejection of compact conveyer belt 11, the subsides mark conveyer belt 2 of feeding conveying mechanism, rear side and ejection of compact guide bar 14 set gradually and the parallel and level, pushing equipment 15 is located the rear of carton and its top before can pushing up the carton, and the ejecting carton of by pushing equipment 15 can fall forward on supporter 12.

The feeding conveying mechanism comprises a guide roller conveying unit 5 and a conveying belt conveying unit 6 which are sequentially arranged along the conveying direction of the paper box, wherein the guide roller conveying unit 5 and the conveying belt conveying unit 6 are vertically arranged on a feeding support, a pressing plate 7 is positioned right in front of the conveying belt conveying unit 6, and the guide roller conveying unit 5 comprises a plurality of driven rollers which are arranged side by side left and right.

Specifically, the pressing plate 7 in the embodiment of the utility model is vertically arranged, and a plurality of driving rods are arranged side by side on the front side of the pressing plate; the driving rod vertically arranged and downwards passes through the feeding platform 4, the feeding platform 4 is provided with a strip-shaped opening for the driving rod to pass through and move forwards and backwards along the front and back direction, and a driving cylinder or a weight traction mechanism for the driving rod to move backwards is arranged below the feeding platform 4.

The discharging mechanism 9 in the embodiment of the utility model comprises a fixing frame on the feeding platform 4, a discharging sliding rail arranged on the fixing frame along the front and rear directions, a discharging baffle arranged on the discharging sliding rail in a sliding manner, a discharging cylinder arranged between the discharging baffle and the fixing frame along the front and rear directions and used for driving the discharging baffle to move forwards and backwards, wherein the fixing frame is positioned in front of the carton and positioned at one side of the feeding baffle 8 close to the labeling platform 1, and the discharging baffle is positioned right above the feeding baffle 8; the discharging baffle moves backwards to the adjacent front of the feeding conveying mechanism, and only one paper box can pass through a gap between the discharging baffle and the feeding conveying mechanism after the discharging baffle moves forwards.

Further, two sets of sliding units are arranged on the labeling platform 1 in the embodiment of the utility model in parallel front and back, the two sets of sliding units are respectively positioned in front of and behind the paper box, each set of sliding units comprises a plurality of translation sliding rails 16 which are arranged side by side left and right, and the translation sliding rails 16 are arranged along the front and back direction; the two labeling conveying belts 2 are respectively arranged on the two groups of sliding units in a sliding way, and a sliding air cylinder 17 for driving the labeling platform 1 to move back and forth is arranged between the outer sides of the two labeling conveying belts; the sliding air cylinders 17 are arranged along the front and rear directions, and the sliding air cylinders 17 on two sides are synchronously driven; when the sliding air cylinder 17 stretches, the two labeling conveying belts 2 move towards each other.

The inner sides of the labeling guide strips 3 in the embodiment of the utility model are smooth, and one ends of the two labeling guide strips 3 close to the feeding structure are outwards bent in an arc shape to form a bell mouth structure.

Further, an upper guide strip is arranged on the labeling support and positioned above the adjacent part of the carton; the upper guide strip is arranged along the front-back direction and the lower side of the upper guide strip is smooth.

Specifically, in the embodiment of the utility model, the number of the discharging guide strips 14 is two, the front sides of the discharging guide strips are smooth, the two discharging guide strips 14 are arranged side by side up and down, and the pushing mechanism 15 is positioned above the discharging guide strips 14; the pushing mechanism 15 comprises a plurality of pneumatic pushing plates which are arranged side by side left and right and synchronously driven; the pneumatic push plate is arranged along the front-back direction, is positioned at the rear of the paper box and is propped against the upper part of the rear side of the paper box when being stretched.

The rack 12 in the embodiment of the present utility model is a horizontally arranged frame structure, which is located at the front side below the discharging platform 10.

Specifically, the number of labeling structures in the embodiment of the utility model is two, the two labeling structures are respectively arranged on two sliding frames and are respectively positioned at the front side and the rear side of the carton, the two sliding frames are respectively positioned at the front side and the rear side of the labeling platform 1 and are adjustable in position, and the labeling structures are arranged along the left-right direction and are arranged on the sliding frames in an up-down adjustable manner.

The technical scheme provided by the embodiment of the utility model has the beneficial effects that: the embodiment of the utility model provides a labeling device for a logistics paper box, which can automatically realize feeding, labeling (one side or two sides), discharging and the like of the logistics paper box (particularly an unexpanded paper box, in a sheet shape), has high automation degree and improves the working efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a labeling device for a logistics paper box according to an embodiment of the present utility model.

In the figure: the automatic labeling machine comprises a labeling platform 1, a labeling conveying belt 2, a labeling guide strip 3, a feeding platform 4, a guide roller conveying unit 5, a conveying belt conveying unit 6, a pressing plate 7, a feeding baffle 8, a discharging mechanism 9, a discharging platform 10, a discharging conveying belt 11, a storage rack 12, a discharging baffle 13, a discharging guide strip 14, a pushing mechanism 15, a translation sliding rail 16 and a sliding cylinder 17.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.

Referring to fig. 1, an embodiment of the utility model provides a labeling device for a logistics carton, which comprises a feeding structure, a discharging structure, a labeling platform 1, a labeling structure on the front side or/and the rear side above the labeling platform, and the like. The feeding structure is used for feeding, and the discharging structure is used for discharging. The labeling structure is a conventional structure and comprises an unreeling component, a reeling component, a label stripping component, a printing component (specifically a carbon tape printer) and the like.

Wherein, labeling support, two sets of sliding units, two labeling conveyer belts 2 and the like are arranged on the labeling platform 1. The two sets of sliding units are arranged side by side in front of and behind the carton, and each set of sliding units comprises a plurality of (specifically two) translation sliding rails 16 arranged side by side left and right. The translation slide 16 is disposed in a front-to-rear direction, which is set so as not to affect the sliding of the cartons on the labelling platform 1. The two labeling conveying belts 2 are respectively arranged on the front side and the rear side of the lower part of the paper box, are vertically arranged, are respectively arranged on the two groups of sliding units in a sliding way (arranged on the corresponding sliding racks) so as to enable the two groups of sliding units to slide forwards and backwards, synchronously convey the paper box towards the discharging structure, and a sliding air cylinder 17 for driving the two labeling conveying belts to move forwards and backwards is arranged between the outer side of the two labeling conveying belts and the labeling platform 1 so as to enable the two labeling conveying belts to synchronously move oppositely or relatively to the paper box. The sliding cylinder 17 is arranged along the front and back direction, the cylinder body is fixed on the labeling platform 1, and the inner end of the telescopic rod is fixedly connected with the outer side of the labeling conveying belt 2. The sliding cylinders 17 on the two sides are synchronously driven; specifically, two sliding cylinders 17 are arranged side by side on each side, and four sliding cylinders 17 are synchronously driven. When the sliding cylinder 17 extends, the two labeling conveying belts 2 move towards each other. The labeling support is provided with two labeling guide strips 3 and an upper guide strip, and the two labeling guide strips 3 are arranged side by side front and back and are respectively positioned at the adjacent front and the adjacent rear of the upper part of the carton. The labeling guide strip 3 is arranged along the left and right directions, and the inner side of the labeling guide strip is smooth. One ends of the two labeling guide strips 3, which are close to the feeding structure, are outwards bent in an arc shape to form a horn mouth structure so as to facilitate the entrance of the paper box. The upper guide strip is positioned above the adjacent part of the paper box, is arranged along the front and rear directions and has smooth lower side. The labeling structure is positioned between the labeling conveying belt 2 and the labeling guide strip 3 at the corresponding side.

Further, a horizontal conveying belt is arranged on the labeling platform 1 and is positioned right below the two labeling conveying belts 2 along the left-right direction, and the horizontal conveying belt is flush with the discharging conveying belt 11 and the speed of the horizontal conveying belt is matched with the speed of the labeling conveying belt 2.

Wherein, the feeding structure includes feeding platform 4, the feeding support of feeding platform 4 rear side, on the feeding support and along controlling the feeding conveying mechanism that sets up, feeding platform 4 top (specifically adjacent top) and can fore-and-aft motion's clamp plate 7, feeding platform 4's discharge end and be located feeding baffle 8 and the blowing mechanism 9 of feeding baffle 8 rear end department in feeding conveying mechanism the place ahead etc.. A plurality of cartons are stacked between the feeding conveying mechanism and the pressing plate 7 back and forth to form a carton pile, the cartons are arranged in the left-right direction and are vertically arranged, and the carton pile can be propped against one side, far away from the labeling platform 1, of the feeding baffle plate 8. The press plate 7 is arranged in the left-right direction, in front of the feed conveyor, and is always pressed against the front side of the stack of cartons (driven by the corresponding structure), which is in particular a rectangular plate. The feeding baffle 8 is arranged along the front-back direction, a clearance which can be passed through by the paper boxes is arranged between the rear end of the feeding baffle and the feeding conveying mechanism, and the discharging mechanism 9 can only pass through the clearance by one paper box. When the discharging mechanism 9 moves backwards, the paper boxes do not pass through; when the discharging mechanism 9 moves forward, only the last carton of the carton pile can pass through the gap.

Wherein, the ejection of compact structure includes ejection of compact platform 10, ejection of compact conveyer belt 11 that just set up along controlling on the ejection of compact platform 10, the rear bracket of ejection of compact platform 10 rear side, the supporter 12 in ejection of compact platform 10 the place ahead (be used for piling up the carton, can manually arrange into the buttress), ejection of compact baffle 13 on ejection of compact platform 10 or the rear bracket, ejection of compact guide strip 14 on the rear bracket and pushing away mechanism 15 on rear bracket upper portion etc.. The feeding platform 4, the labeling platform 1 and the discharging conveyor belt 11 are sequentially arranged and flush (even level), and the surfaces of the feeding platform 4 and the labeling platform 1 are smooth. The discharge conveyor 11 is arranged horizontally, is located at the lower side of the cartons, and is located right behind the two labeling conveyor 2. The discharge baffle 13 is located above the discharge end of the discharge conveyor belt 11, and is disposed in the front-rear direction, and is used for blocking carton output. The discharging guide strip 14 is located above the discharging conveyor belt 11, and the feeding end of the discharging guide strip can be bent backwards in an arc shape. The feeding conveyor mechanism, the labeling conveyor belt 2 at the rear side and the discharge guide bar 14 are arranged in sequence and flush (only vertical). The pushing mechanism 15 is located at the rear of the cartons and can push the cartons forward, and the cartons pushed out by the pushing mechanism 15 can fall forward on the shelf 12.

In this patent, the position of the carton is detected by the photoelectric sensor arranged at the adapted position to control the corresponding action. Wherein, the conveying direction and the speed of the conveying structure in this patent cooperate.

The working process of the device is as follows: the carton buttress is located feeding platform 4, and conveyer belt conveying unit 6 exports the carton, and feed mechanism 9 forward motion, a slice carton motion are to between two subsides mark conveyer belt 2, and at this moment, two subsides mark conveyer belt 2 are in the state of separating. The two labeling conveyor belts 2 move to the front side and the rear side of the cartons in opposite directions, and the cartons move along the labeling guide strips 3 and are labeled by the labeling structure. The cartons enter a discharging platform 10 and are output by a discharging conveying belt 11; when the cartons move along the discharge guide strips 14 onto the discharge baffle 13, the pushing mechanism 15 acts to push the cartons down to the storage shelves 12.

Referring to fig. 1, the feeding and conveying mechanism in the embodiment of the utility model comprises a guide roller conveying unit 5 and a conveying belt conveying unit 6 which are sequentially arranged along the conveying direction of the paper box, wherein the guide roller conveying unit 5 and the conveying belt conveying unit 6 are respectively arranged along the left-right direction and are flush with the discharging guide strip 14, and the conveying belt conveying unit 6 is driven by the corresponding structures. The guide roller conveying unit 5 and the conveyer belt conveying unit 6 are vertically arranged on the feeding support and are located above the feeding platform 4 adjacently, the pressing plate 7 is located right in front of the conveyer belt conveying unit 6, and the guide roller conveying unit 5 comprises a plurality of driven rollers (vertical arrangement) which are arranged side by side left and right.

Specifically, referring to fig. 1, the pressing plate 7 in the embodiment of the present utility model is vertically disposed, and a plurality of (one or two) driving rods are disposed side by side on the front side. The drive rod is arranged vertically, which passes downwards through the feed platform 4, in particular a bar-shaped rod. The feeding platform 4 is provided with a strip-shaped opening along the front and back direction for a driving rod to pass through and move forwards and backwards, and the driving rod passes through the strip-shaped opening. A driving cylinder (arranged along the front and back directions) or a weight traction mechanism (through a telescopic traction weight) and the like which enable a driving rod (the ground bottom can slide back and forth on a corresponding structure) to move backwards are arranged below the feeding platform 4, and the driving structure is a conventional structure in the field and is used for always compacting the carton stacks.

The discharging mechanism 9 in the embodiment of the utility model comprises a fixing frame on the feeding platform 4, a discharging sliding rail (located at one side of the fixing frame far away from the labeling platform 1) arranged on the fixing frame along the front and back direction, a discharging baffle plate (specifically, a rectangular plate) arranged on the discharging sliding rail in a sliding manner along the front and back direction, a discharging cylinder between the discharging baffle plate and the fixing frame and used for driving the discharging baffle plate to move forwards and backwards, and the like. The mount is located the place ahead of carton and its one side that is close to labeling platform 1 that is located feeding baffle 8, and the blowing baffle is located feeding baffle 8 (lower) directly over. The discharging baffle moves backwards to the adjacent front of the feeding conveying mechanism, and only one paper box can pass through a gap between the discharging baffle and the feeding conveying mechanism after the discharging baffle moves forwards.

Specifically, in the embodiment of the present utility model, the number of the discharging guiding strips 14 is two, the front sides thereof slide, the two discharging guiding strips 14 are arranged side by side up and down, and the pushing mechanism 15 is located above the discharging guiding strips 14. The pushing mechanism 15 includes a plurality of pneumatic pushing plates (the pushing plates are provided on the front side thereof in the left-right direction) which are arranged side by side and are synchronously driven. The pneumatic push plate is arranged along the front-back direction, is positioned at the rear of the paper box and is propped against the upper part of the rear side of the paper box when being stretched.

The rack 12 in the embodiment of the present utility model is a horizontally arranged frame structure, which is located at the front side below the discharging platform 10.

Specifically, the number of labeling structures in the embodiment of the utility model is two, the two labeling structures are respectively arranged on the two sliding frames and are respectively positioned at the front side and the rear side of the carton, the two sliding frames are respectively positioned at the front side and the rear side of the labeling platform 1, the positions of the two sliding frames are adjustable, and the labeling structures are arranged along the left-right direction and are arranged on the sliding frames in an up-down adjustable manner. The structure can adjust the labeling position, and is also convenient for slick printing ink and slick label paper.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (10)

1. The labeling device of the logistics paper box comprises a labeling platform (1) and a labeling structure on the front side or/and the rear side above the labeling platform; the device is characterized by also comprising a feeding structure and a discharging structure;

the labeling platform (1) is provided with a labeling bracket and two labeling conveying belts (2); the two labeling conveying belts (2) are respectively positioned at the front side and the rear side of the lower part of the paper box, are vertically arranged, can move forwards and backwards on the labeling platform (1), synchronously convey the paper box towards the discharging structure, and can synchronously move towards or away from the paper box; two labeling guide strips (3) are arranged on the labeling support in parallel front and back, and the two labeling guide strips (3) are respectively positioned at the adjacent front and the adjacent back of the upper part of the carton; the labeling guide strips (3) are arranged along the left-right direction, and the labeling structure is positioned between the labeling conveying belt (2) and the labeling guide strips (3) at the corresponding sides;

the feeding structure comprises a feeding platform (4), a feeding support at the rear side of the feeding platform (4), a feeding conveying mechanism arranged on the feeding support and along the left and right directions, a pressing plate (7) above the feeding platform (4) and capable of moving forwards and backwards, a feeding baffle (8) at the discharge end of the feeding platform (4) and positioned in front of the feeding conveying mechanism, and a discharging mechanism (9) at the rear end of the feeding baffle (8), wherein a plurality of cartons are stacked between the feeding conveying mechanism and the pressing plate (7) forwards and backwards to form a carton stack; the pressing plate (7) is arranged in the left-right direction, is positioned in front of the feeding conveying mechanism and is always propped against the front side of the carton pile; the feeding baffle (8) is arranged along the front-back direction, a clearance through which the paper boxes can pass is formed between the rear end of the feeding baffle and the feeding conveying mechanism, and the discharging mechanism (9) can only allow one paper box to pass through the clearance;

the discharging structure comprises a discharging platform (10), a discharging conveying belt (11) arranged on the discharging platform (10) and along the left and right directions, a rear support at the rear side of the discharging platform (10), a storage rack (12) in front of the discharging platform (10), a discharging baffle (13) on the discharging platform (10) or the rear support, a discharging guide strip (14) on the rear support and a pushing mechanism (15) on the upper part of the rear support, wherein the feeding platform (4), the labeling platform (1) and the discharging conveying belt (11) are sequentially arranged and flush; the discharging conveyor belts (11) are horizontally arranged and positioned at the lower sides of the cartons, and are positioned right behind the two labeling conveyor belts (2); the utility model discloses a carton feeding device, including ejection of compact conveyer belt (11), ejection of compact baffle (13), ejection of compact guide strip (14), feeding conveying mechanism, subsides mark conveyer belt (2) and ejection of compact guide strip (14) of rear side, ejection of compact mechanism (15) are located the rear of carton and its top before can pushing up the carton, and the carton that is pushed up by ejection of compact mechanism (15) can fall forward on supporter (12).

2. The labeling device of logistics cartons according to claim 1, wherein the feeding conveying mechanism comprises a guide roller conveying unit (5) and a conveying belt conveying unit (6) which are sequentially arranged along the conveying direction of the cartons, the guide roller conveying unit (5) and the conveying belt conveying unit (6) are vertically arranged on the feeding support, the pressing plate (7) is positioned right in front of the conveying belt conveying unit (6), and the guide roller conveying unit (5) comprises a plurality of driven rollers which are arranged side by side left and right.

3. The labeling device of the logistics cartons according to claim 1, wherein the pressing plate (7) is vertically arranged, and a plurality of driving rods are arranged side by side on the front side; the driving rod vertically arranged and downwards penetrates through the feeding platform (4), a strip-shaped opening for the driving rod to penetrate through and move forwards and backwards is formed in the feeding platform (4) along the front and back directions, and a driving cylinder or a weight traction mechanism for enabling the driving rod to move backwards is arranged below the feeding platform (4).

4. The labeling device of the logistics cartons according to claim 1, wherein the discharging mechanism (9) comprises a fixing frame on the feeding platform (4), a discharging sliding rail arranged on the fixing frame along the front and back directions, a discharging baffle arranged on the discharging sliding rail along the front and back directions, a discharging cylinder arranged between the discharging baffle and the fixing frame and used for driving the discharging baffle to move forwards and backwards, the fixing frame is positioned in front of the cartons and positioned at one side of the feeding baffle (8) close to the labeling platform (1), and the discharging baffle is positioned right above the feeding baffle (8); the discharging baffle moves backwards to the adjacent front of the feeding conveying mechanism, and only one paper box can pass through a gap between the discharging baffle and the feeding conveying mechanism after the discharging baffle moves forwards.

5. The labeling device of the logistics cartons according to claim 1, wherein two groups of sliding units are arranged on the labeling platform (1) in parallel front and back, the two groups of sliding units are respectively positioned in front of and behind the cartons, each group of sliding units comprises a plurality of translation sliding rails (16) which are arranged side by side left and right, and the translation sliding rails (16) are arranged along the front and back directions; the two labeling conveying belts (2) are respectively arranged on the two groups of sliding units in a sliding way, and a sliding air cylinder (17) for driving the labeling platform (1) to move forwards and backwards is arranged between the outer sides of the two labeling conveying belts; the sliding air cylinders (17) are arranged along the front and back directions, and the sliding air cylinders (17) on two sides are synchronously driven; when the sliding air cylinder (17) stretches, the two labeling conveying belts (2) move in opposite directions.

6. The labeling device of the logistics cartons according to claim 1, wherein the inner sides of the labeling guide strips (3) are smooth, and one ends, close to the feeding structure, of the two labeling guide strips (3) are outwards bent in an arc shape to form a horn mouth structure.

7. The labeling device of logistics cartons according to claim 1, wherein an upper guide strip is arranged on the labeling support and positioned above adjacent cartons; the upper guide strip is arranged along the front-back direction and the lower side of the upper guide strip is smooth.

8. The labeling device of the logistics cartons according to claim 1, wherein the number of the discharging guide strips (14) is two, the front sides of the discharging guide strips are smooth, the two discharging guide strips (14) are arranged side by side up and down, and the pushing mechanism (15) is positioned above the discharging guide strips (14); the pushing mechanism (15) comprises a plurality of pneumatic pushing plates which are arranged side by side left and right and synchronously driven; the pneumatic push plate is arranged along the front-back direction, is positioned at the rear of the paper box and is propped against the upper part of the rear side of the paper box when being stretched.

9. The labeling device of logistics cartons according to claim 1, wherein the rack (12) is a horizontally arranged frame structure, which is located at the lower front side of the outfeed platform (10).

10. The labeling device of the logistics cartons according to claim 1, wherein the number of the labeling structures is two, the two labeling structures are respectively arranged on the two sliding frames and are respectively positioned on the front side and the rear side of the cartons, the two sliding frames are respectively positioned in front of and behind the labeling platform (1) and are adjustable in position, and the labeling structures are arranged along the left-right direction and are arranged on the sliding frames in an up-down adjustable manner.