CN111605245A

CN111605245A - Multi-stage buffering flattening system and method for corrugated carton

Info

Publication number: CN111605245A
Application number: CN202010484594.3A
Authority: CN
Inventors: 田亚利; 石义伟; 孙俊军; 朱民强; 黄煜琪
Original assignee: Zhejiang Great Shengda Packing Co Ltd
Current assignee: Zhejiang Great Shengda Packing Co Ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2020-09-01

Abstract

The invention discloses a multi-stage buffering and flattening system and a flattening method of a corrugated carton, and the system comprises a concave seat, wherein a conveyor belt is arranged inside the concave seat, a controller is fixedly installed on one side of the concave seat, a dust removing mechanism is arranged on the upper surface of the rear side of the concave seat, a primary pressing mechanism is arranged on the upper surface of the concave seat close to the front position of the dust removing mechanism, a fine pressing mechanism is arranged on the upper surface of the concave seat close to the front position of the primary pressing mechanism, and anti-displacement mechanisms are arranged on two sides of the front of the concave seat. The invention relates to the technical field of corrugated carton flattening, in particular to a multi-stage buffering flattening system and a flattening method of a corrugated carton.

Description

Multi-stage buffering flattening system and method for corrugated carton

Technical Field

The invention relates to the technical field of corrugated carton flattening, in particular to a multi-stage buffering flattening system and a flattening method for a corrugated carton.

Background

The corrugated case is made by die cutting, indentation, nailing or gluing, is the most widely used packaging product, and the amount of the corrugated case is always the first of various packaging products, and corrugated paper needs to be flattened before the corrugated case is formed.

Chinese patent No. CN207190363U discloses a corrugated box flattening device, including protection casing, compression roller, lubricating oil device, regulator, fixed plate, workstation, main part, fixed stabilizer blade, motor, the main part cross section is rectangle and the terminal surface size is unanimous from top to bottom, through getting into by the import, then gets into the timer through the transmission pipe, is connected power start control ware by the timer again, is connected circuit board by the controller afterwards.

Chinese patent No. CN106739178A discloses a cardboard flattening device, comprising a base plate, be provided with the cavity in the bottom plate, the cavity is through a plurality of through-holes and bottom plate top intercommunication, and the bottom plate both sides all are provided with the extension board, and it is provided with crossbeam and pivot side by side to span between two extension boards, be provided with the barrel and the body of rod that sealed slip cup jointed on the crossbeam, the barrel passes through pipeline and cavity intercommunication, body of rod bottom is provided with the rack, the rack bottom is provided with the clamp plate.

Comprehensive analysis, the existing corrugated case flattening device has the following defects:

1) when the corrugated paper is flattened, dust particles on the corrugated paper can influence the flattening effect;

2) in the process of flattening the corrugated paper, the corrugated paper is easy to shift;

3) when the corrugated paper is pressed, a multi-stage buffer flattening device is not arranged, so that the flattening quality of the corrugated paper box is reduced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a multi-stage buffering and flattening system of a corrugated case and a flattening method thereof, which solve the problems that the corrugated case is easy to shift in the flattening process, dust particles on the corrugated case can influence the flattening effect, and a multi-stage buffering and flattening device is not arranged, so that the flattening quality of the corrugated case is reduced.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a multistage buffering system of flattening of corrugated box, includes the spill seat, the inside of spill seat is provided with the conveyer belt, and one side fixed mounting of spill seat has the controller, the rear side upper surface of spill seat is provided with dust removal mechanism, and the place ahead position department that the upper surface of spill seat is close to dust removal mechanism is provided with and just presses the mechanism, the place ahead position department that the upper surface of spill seat is close to just pressing the mechanism is provided with the essence and presses the mechanism, and the place ahead both sides of spill seat all are provided with prevents the aversion mechanism.

Prevent shifting mechanism is including two sliding shafts, two sliding shafts's one end all imbeds slidable mounting in a side of spill seat, and is connected with splint between the one end of two sliding shafts, the lower surface of splint and the upper surface contact of conveyer belt, two the third recess, two have all been seted up to sliding shafts's lower surface the inside of third recess is all fixed and is provided with the rack, two the below of rack all is joggled and is had the gear, two run through between the gear and be provided with the second pivot, two the both ends of second pivot are all rotated and are connected with the lug, two the lug all passes through bolt fixed connection with the side of spill seat, and the front surface embedding of one of them lug installs third servo motor, the one end of third servo motor and the one end fixed connection of gear.

Preferably, the other ends of the two sliding shafts are provided with a stop block.

Preferably, a side face of the clamping plate is uniformly provided with second grooves, and the insides of the second grooves are embedded into the rollers to be rotatably installed.

Preferably, the initial pressing mechanism comprises four L-shaped blocks which are arranged in a matrix manner, the lower ends of the four L-shaped blocks are fixedly connected with the upper surface of the concave seat, the inner upper surfaces of the four L-shaped blocks are vertically connected with first springs, a pressure plate is horizontally connected between the lower ends of the first springs, the upper surfaces of the two sides of the concave seat are provided with limit blocks at the positions among the L-shaped blocks, a first servo motor is embedded and rotatably installed on one side of the upper end of each limiting block, one end of the first servo motor is horizontally connected with a first rotating shaft, one end of the first rotating shaft is rotatably connected with the side surface above the other limiting block, and the outer surfaces of the two ends of the first rotating shaft are respectively provided with a rolling wheel, the inner parts of the two rolling wheels are respectively provided with a steel wire rope, and the lower ends of the two steel wire ropes are respectively fixedly connected with the upper surfaces of the two sides of the pressing plate.

Preferably, first grooves are uniformly formed in the lower surface of the pressing plate, first pressing rollers are rotatably installed in the first grooves in an embedded mode, and the lower surface of each first pressing roller is in contact with the upper surface of the conveying belt.

Preferably, the precision pressing mechanism comprises two limiting plates, the lower surfaces of the two limiting plates are respectively fixedly connected with the upper surfaces of the two sides of the concave seat, a side surface of each of the two limiting plates is provided with a through groove, the insides of the two through grooves are respectively and vertically connected with a sliding shaft, a sliding plate is horizontally sleeved and slidably mounted between the lower ends of the two sliding shafts, the outer surfaces of the upper ends of the two sliding shafts are respectively sleeved and slidably mounted with a second spring, the upper end and the lower end of the second spring are respectively and fixedly connected with the upper surface of the sliding plate and the upper surface of the insides of the through grooves, the lower surfaces of the two ends of the sliding plate are respectively and vertically connected with a fixed block, a second compression roller is horizontally and rotatably connected between the lower ends of the two fixed blocks, the lower surface of the second compression roller is in contact with the upper surface of the conveyor, two run through between the sliding block and be provided with the lead screw, the both ends of lead screw rotate with the top side of two limiting plates respectively and are connected, one of them the embedding of the top another side of limiting plate is installed second servo motor, second servo motor's output shaft and the one end fixed connection of lead screw.

Preferably, the screw thread that the surface of lead screw is located the center both sides sets up to opposite, two a side of sliding block is seted up respectively with two kinds of screw thread assorted screw holes.

Preferably, dust removal mechanism is including two rectangular frame, two rectangular frame's lower surface respectively with the both sides upper surface fixed connection of spill seat, and horizontal slidable mounting has the conveyer pipe between two rectangular frame's the below is inside, the lower surface of conveyer pipe evenly is provided with the shower nozzle, the lower extreme of shower nozzle and the upper surface contact of conveyer belt, two rectangular frame's upper surface all imbeds and installs the cylinder, two the output shaft of cylinder respectively with the both ends upper surface fixed connection of conveyer pipe, a side fixed mounting and the corresponding air pump of conveyer pipe of spill seat, the flexible pipe of the end fixedly connected with of giving vent to anger of air pump, the one end of flexible pipe and the one end fixed connection of conveyer pipe.

Preferably, the multi-level buffering and flattening method for the corrugated carton comprises the following steps:

s1, dust removal: before the corrugated case is flattened, the dust removal mechanism is used for carrying out dust removal on the surface of the corrugated case, and dust particles on the surface of the corrugated case are removed;

s2, initial pressure: when the corrugated case passes through the primary pressing mechanism, the primary pressing mechanism performs primary pressing work on the corrugated case;

s3, coining: after the preliminary pressing is completed in step S2, the coining mechanism performs a coining work on the corrugated box.

Preferably, in the steps S2 and S3, the thickness of the pressed corrugated box is set according to the production requirement.

Advantageous effects

The invention provides a multi-stage buffering flattening system and a flattening method for a corrugated case, and compared with the prior art, the system has the following beneficial effects:

(1) the multi-stage buffering flattening system of the corrugated case and the flattening method thereof are characterized in that third grooves are formed in the lower surfaces of the two sliding shafts, racks are fixedly arranged inside the two third grooves, gears are meshed below the two racks, a second rotating shaft is arranged between the two gears in a penetrating mode, protruding blocks are rotatably connected to the two ends of the two second rotating shafts, the two protruding blocks are fixedly connected with the side faces of the concave seats through bolts, a third servo motor is embedded into the front surface of one of the protruding blocks, one end of the third servo motor is fixedly connected with one end of the gear, and in the process of flattening the corrugated case, limiting and guiding effects can be achieved on the two sides of the corrugated paper, so that the corrugated paper can stably move on a conveying belt, and the corrugated paper is prevented from shifting when being flattened.

(2) The multi-stage buffering flattening system of the corrugated case and the flattening method of the multi-stage buffering flattening system of the corrugated case are characterized in that a primary pressing mechanism is arranged at the position, close to the dust removal mechanism, of the upper surface of the concave seat, a fine pressing mechanism is arranged at the position, close to the primary pressing mechanism, of the upper surface of the concave seat, and when the corrugated case is flattened, the corrugated case can be firstly subjected to primary pressing work and then subjected to fine pressing work, so that the multi-stage flattening effect of the corrugated case is achieved, and the processing quality of the corrugated case is improved.

(3) The multi-stage buffering flattening system of the corrugated case and the flattening method of the multi-stage buffering flattening system of the corrugated case are characterized in that a first rotating shaft is horizontally connected to one end of a first servo motor, one end of the first rotating shaft is rotatably connected with the upper side face of another limiting block, the outer surfaces of the two ends of the first rotating shaft are respectively provided with a winding wheel, the two ends of a lead screw are respectively rotatably connected with the upper side faces of two limiting plates, a second servo motor is embedded into the upper side face of one limiting plate, the output shaft of the second servo motor is fixedly connected with one end of the lead screw, the thickness required to be flattened of corrugated paper can be quickly adjusted under the rotation of the first servo motor and the second servo motor during primary pressing and final pressing, the operation is not needed manually, and the system is convenient.

(4) The output shafts of the two cylinders are fixedly connected with the upper surfaces of the two ends of the conveying pipe respectively, the air pump corresponding to the conveying pipe is fixedly installed on one side face of the concave seat, the telescopic pipe is fixedly connected with the air outlet end of the air pump, one end of the telescopic pipe is fixedly connected with one end of the conveying pipe, and before corrugated paper is flattened, dust particles on the surface of the corrugated paper can be treated under the working of the air pump, so that the flattening quality of the corrugated paper is prevented from being influenced by the dust particles.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is a schematic structural view of the anti-shift mechanism of the present invention;

FIG. 3 is a schematic view of a sliding shaft configuration of the present invention;

FIG. 4 is a schematic view of the splint structure of the present invention;

FIG. 5 is a schematic structural diagram of the initial pressing mechanism according to the present invention;

FIG. 6 is a schematic view of a platen configuration of the present invention;

FIG. 7 is a schematic structural diagram of a pressing mechanism according to the present invention;

FIG. 8 is a schematic structural view of a dust removing mechanism according to the present invention;

FIG. 9 is a control block diagram of the controller architecture of the present invention;

FIG. 10 is a flow chart of the present invention.

In the figure: 1. a concave seat; 2. a conveyor belt; 3. a controller; 4. a dust removal mechanism; 41. a rectangular frame; 42. a delivery pipe; 43. a spray head; 44. a cylinder; 45. an air pump; 46. a telescopic pipe; 5. a primary pressing mechanism; 51. an L-shaped block; 52. a first spring; 53. pressing a plate; 531. a first groove; 532. a first press roll; 54. a limiting block; 55. a first servo motor; 56. a first rotating shaft; 57. a winding wheel; 58. a wire rope; 6. a precision pressing mechanism; 61. a limiting plate; 62. a through groove; 63. a slide shaft; 64. a slide plate; 65. a second spring; 66. a fixed block; 67. a second press roll; 68. adjusting a rod; 69. a slider; 610. a screw rod; 611. a second servo motor; 7. an anti-shifting mechanism; 71. a sliding shaft; 711. a stopper; 72. a splint; 721. a second groove; 722. rolling a roller; 73. a third groove; 74. a rack; 75. a gear; 76. a second rotating shaft; 77. a bump; 78. and a third servo motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a multistage buffering system of flattening of corrugated box, including spill seat 1, the inside of spill seat 1 is provided with conveyer belt 2, and one side fixed mounting of spill seat 1 has controller 3, the rear side upper surface of spill seat 1 is provided with dust removal mechanism 4, and the place ahead position department that the upper surface of spill seat 1 is close to dust removal mechanism 4 is provided with just presses mechanism 5, the place ahead position department that the upper surface of spill seat 1 is close to just pressing mechanism 5 is provided with accurate pressure mechanism 6, and the place ahead both sides of spill seat 1 all are provided with prevents aversion mechanism 7.

Referring to fig. 2-4, the anti-shifting mechanism 7 includes two sliding shafts 71, one end of each of the two sliding shafts 71 is embedded in and slidably mounted on a side surface of the concave base 1, a clamping plate 72 is connected between one end of each of the two sliding shafts 71, a lower surface of the clamping plate 72 contacts with an upper surface of the conveyor belt 2, lower surfaces of the two sliding shafts 71 are respectively provided with third grooves 73, racks 74 are respectively fixedly disposed inside the third grooves 73, gears 75 are respectively engaged with lower portions of the two racks 74, a second rotating shaft 76 is disposed between the two gears 75, two ends of each of the two second rotating shafts 76 are respectively rotatably connected with a bump 77, the two bumps 77 are respectively fixedly connected with the side surface of the concave base 1 by bolts, a third servo motor 78 is embedded in a front surface of one of the bumps 77, one end of the third servo motor 78 is fixedly connected with one end of the gear 75, the other ends of the two sliding shafts 71 are respectively provided with a stopper, the dog 711 plays the effect of blockking to gear 75, and second recess 721 has evenly been seted up to a side of splint 72, and the inside of each second recess 721 all imbeds to rotate and installs and roll roller 722, and when the corrugated paper removed, roll roller 722 can rotate, plays the guide effect to the corrugated paper.

Referring to fig. 5-6, the preliminary pressing mechanism 5 includes four L-shaped blocks 51, the four L-shaped blocks 51 are arranged in a matrix manner, lower ends of the four L-shaped blocks 51 are fixedly connected to an upper surface of the concave base 1, inner upper surfaces of the four L-shaped blocks 51 are vertically connected to first springs 52, a pressing plate 53 is horizontally connected between lower ends of the first springs 52, the upper surfaces of two sides of the concave base 1 between the L-shaped blocks 51 are provided with a limiting block 54, one side of an upper end of the limiting block 54 is embedded with a first servo motor 55, one end of the first servo motor 55 is horizontally connected to a first rotating shaft 56, one end of the first rotating shaft 56 is rotatably connected to an upper side of another limiting block 54, outer surfaces of two ends of the first rotating shaft 56 are provided with rolling wheels 57, steel wire ropes 58 are arranged inside the two rolling wheels 57, lower ends of the two steel wire ropes 58 are respectively fixedly connected to upper surfaces of two sides of the pressing plate, first recess 531 has evenly been seted up to the lower surface of clamp plate 53, and the inside of each first recess 531 all imbeds to rotate and installs first compression roller 532, and the lower surface of first compression roller 532 and the upper surface contact of conveyer belt 2 press the work for the completion is just pressed to the corrugated paper.

Referring to fig. 7, the finishing press mechanism 6 includes two limiting plates 61, the lower surfaces of the two limiting plates 61 are respectively and fixedly connected with the upper surfaces of the two sides of the concave seat 1, one side of each of the two limiting plates 61 is provided with a through groove 62, the inside of each of the two through grooves 62 is vertically connected with a sliding shaft 63, the lower ends of the two sliding shafts 63 are horizontally sleeved and slidably installed with a sliding plate 64, the outer surfaces of the upper ends of the two sliding shafts 63 are sleeved and slidably installed with a second spring 65, the upper and lower ends of the second spring 65 are respectively and fixedly connected with the upper surface of the sliding plate 64 and the upper surface of the inside of the through groove 62, the lower surfaces of the two ends of the sliding plate 64 are respectively and vertically connected with a fixed block 66, the lower ends of the two fixed blocks 66 are horizontally and rotatably connected with a second press roll 67, the lower surface of the second press, the upper ends of the two adjusting rods 68 are rotatably provided with sliding blocks 69, a screw rod 610 penetrates between the two sliding blocks 69, two ends of the screw rod 610 are rotatably connected with the upper side surfaces of the two limiting plates 61 respectively, a second servo motor 611 is embedded into the other side surface of the upper side of one of the limiting plates 61, an output shaft of the second servo motor 611 is fixedly connected with one end of the screw rod 610, threads on two sides of the center of the outer surface of the screw rod 610 are arranged oppositely, threaded holes matched with the two threads are formed in one side surface of each of the two sliding blocks 69 respectively, and the corrugated paper is finely pressed.

Referring to fig. 8, the dust removing mechanism 4 includes two rectangular frames 41, lower surfaces of the two rectangular frames 41 are respectively and fixedly connected to upper surfaces of two sides of the concave base 1, a conveying pipe 42 is horizontally and slidably installed between lower interiors of the two rectangular frames 41, a nozzle 43 is uniformly disposed on a lower surface of the conveying pipe 42, a lower end of the nozzle 43 contacts with an upper surface of the conveyor belt 2, air cylinders 44 are respectively embedded into the upper surfaces of the two rectangular frames 41, output shafts of the two air cylinders 44 are respectively and fixedly connected to upper surfaces of two ends of the conveying pipe 42, an air pump 45 corresponding to the conveying pipe 42 is fixedly installed on one side surface of the concave base 1, an air outlet end of the air pump 45 is fixedly connected to an extension pipe 46, one end of the extension pipe 46 is fixedly connected to one end of the conveying pipe 42, and before the corrugated.

Referring to fig. 9, the models of the first servo motor 55, the second servo motor 611 and the third servo motor 78 are MHMD082P1U, the model of the air cylinder 44 is SC50, the model of the air pump 45 is YD-858, and the model of the controller 3 is KG316T220 XK.

Further, referring to fig. 10, a multi-level buffering and flattening method for a corrugated carton includes the following steps:

s1, dust removal: before the corrugated case is flattened, the dust removal mechanism 4 is used for carrying out dust removal on the surface of the corrugated case, and dust particles on the surface of the corrugated case are removed;

s2, initial pressure: when the corrugated case passes through the primary pressing mechanism 5, the primary pressing mechanism 5 performs primary pressing work on the corrugated case;

s3, coining: after the preliminary pressing is completed in step S2, the coining mechanism 6 performs a coining work on the corrugated box.

In steps S2 and S3, the thickness of the pressed corrugated box is set according to the production requirement.

And those not described in detail in this specification are well within the skill of those in the art.

When the corrugated paper flattening machine is used, firstly, the air cylinder 44 drives the conveying pipe 42 to move upwards in the rectangular frame 41, the conveying pipe 42 drives the spray head 43 to move, then, corrugated paper passes through the lower part of the spray head 43, then, the air cylinder 44 drives the spray head 43 on the conveying pipe 42 to move to the upper surface of the corrugated paper, under the operation of the air pump 45, the air pump 45 blows air into the conveying pipe 42, finally, the air is sprayed out of the spray head 43 and sprayed to the surface of the corrugated paper, dust particles on the surface of the corrugated paper can be blown off, before flattening, the power supply of the first servo motor 55 and the second servo motor 611 is respectively switched on, the first servo motor 55 drives the winding wheel 57 on the first rotating shaft 56 to rotate, the winding wheel 57 winds the steel wire rope 58, under the elasticity of the first spring 52, the steel wire 58 can drive the pressing plate 53 to move upwards, at the moment, the first spring 52 is in a, because the threads on the two sides of the center of the outer surface of the screw 610 are opposite, and the side surfaces of the two sliding blocks 69 are respectively provided with threaded holes matched with the two threads, when the screw 610 rotates, the two sliding blocks 69 are driven to move, and the moving directions of the two sliding blocks 69 are opposite, the two sliding blocks 69 are firstly driven to move towards two sides, because the adjusting rods 68 are respectively engaged with the sliding blocks 69 and the sliding plates 64, when the two sliding blocks 69 move towards two sides, under the elasticity of the second spring 65, the two adjusting rods 68 can drive the sliding plates 64 to slide upwards on the sliding shafts 63, then the corrugated paper respectively passes through the lower part of the pressure plate 53 and the lower part of the second pressure roller 67, after passing, the power supply of the third servo motor 78 is switched on, the third servo motor 78 drives the two gears 75 on the second rotating shaft 76 to rotate, because the gears 75 are engaged with the racks 74 inside the third grooves, therefore, when the gear 75 rotates, the sliding shaft 71 drives the clamping plates 72 to move, so that the two clamping plates 72 clamp both sides of the corrugated paper, when the conveyor belt 2 drives the corrugated paper to convey, under the rotation of the rolling roller 722, the rolling roller 722 can play a role in guiding and limiting the corrugated paper, and prevent the corrugated paper from deviating and influencing the flattening work, after the corrugated paper is laid, the first servo motor 55 drives the rolling wheel 57 on the first rotating shaft 56 to rotate reversely, the rolling wheel 57 drives the steel wire rope 58 to unfold, so that under the elasticity of the first spring 52, the pressing plate 53 moves downwards, the distance between the pressing plate 53 and the conveyor belt 2 is adjusted, the first pressing roller 532 on the pressing plate 53 presses the surface of the corrugated paper, under the rotation of the first pressing roller 532, the first pressing roller 532 can perform the primary pressing work on the corrugated paper, when the primarily pressed corrugated paper passes through the position of the second pressing roller 67 on the fine pressing mechanism 6, the second servo motor 611 is used for driving the screw rod 610 to continuously rotate, the two sliding blocks 69 on the screw rod 610 move towards the middle direction, the adjusting rods 68 on the two sliding blocks 69 can drive the second pressing roller 67 to move downwards, the flattening height of the second pressing roller 67 is adjusted, so that the second pressing roller 67 can finish the corrugated paper in a fine pressing mode under the rotation of the second pressing roller 67, and the flattening work of the corrugated paper can be completed after the fine pressing.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a multistage buffering system of flattening of corrugated box, includes concave seat (1), its characterized in that: a conveyor belt (2) is arranged in the concave seat (1), a controller (3) is fixedly mounted on one side of the concave seat (1), a dust removing mechanism (4) is arranged on the upper surface of the rear side of the concave seat (1), a primary pressing mechanism (5) is arranged at the position, close to the front of the dust removing mechanism (4), of the upper surface of the concave seat (1), a fine pressing mechanism (6) is arranged at the position, close to the front of the primary pressing mechanism (5), of the upper surface of the concave seat (1), and anti-shifting mechanisms (7) are arranged on the two sides of the front of the concave seat (1);

the anti-displacement mechanism (7) comprises two sliding shafts (71), one ends of the two sliding shafts (71) are embedded into and slidably mounted on one side face of the concave seat (1), a clamping plate (72) is connected between one ends of the two sliding shafts (71), the lower surface of the clamping plate (72) is in contact with the upper surface of the conveyor belt (2), third grooves (73) are formed in the lower surfaces of the two sliding shafts (71), racks (74) are fixedly arranged in the two third grooves (73), gears (75) are respectively meshed with the lower portions of the two racks (74), a second rotating shaft (76) penetrates through the two gears (75), two ends of the two second rotating shafts (76) are respectively and rotatably connected with convex blocks (77), the two convex blocks (77) are fixedly connected with the side face of the concave seat (1) through bolts, and a third servo motor (78) is embedded into the front surface of one convex block (77), one end of the third servo motor (78) is fixedly connected with one end of the gear (75).

2. The multi-stage cushion flattening system for corrugated containers according to claim 1, wherein: the other ends of the two sliding shafts (71) are provided with stoppers (711).

3. The multi-stage cushion flattening system for corrugated containers according to claim 1, wherein: second recess (721) have evenly been seted up to a side of splint (72), each the inside of second recess (721) all imbeds to rotate and installs and roll roller (722).

4. The multi-stage cushion flattening system for corrugated containers according to claim 1, wherein: the initial pressing mechanism (5) comprises four L-shaped blocks (51), the four L-shaped blocks (51) are arranged in a matrix mode, the lower ends of the four L-shaped blocks (51) are fixedly connected with the upper surface of the concave seat (1), the upper surfaces of the inner parts of the four L-shaped blocks (51) are vertically connected with first springs (52), a pressing plate (53) is horizontally connected between the lower ends of the first springs (52), limiting blocks (54) are arranged at positions, located between the L-shaped blocks (51), of the upper surfaces of two sides of the concave seat (1), one side of the upper end of each limiting block (54) is embedded with a first servo motor (55) in a rotating mode, one end of each first servo motor (55) is horizontally connected with a first rotating shaft (56), one end of each first rotating shaft (56) is rotatably connected with the side face above the other limiting block (54), and winding wheels (57) are arranged on the outer surfaces of two ends of the first rotating shafts (56), wire ropes (58) are arranged inside the two winding wheels (57), and the lower ends of the two wire ropes (58) are fixedly connected with the upper surfaces of the two sides of the pressing plate (53) respectively.

5. The multi-stage cushion flattening system for corrugated containers according to claim 4, wherein: first recess (531) have evenly been seted up to the lower surface of clamp plate (53), each the inside of first recess (531) all imbeds and rotates and install first compression roller (532), the upper surface contact of the lower surface of first compression roller (532) and conveyer belt (2).

6. The multi-stage cushion flattening system for corrugated containers according to claim 1, wherein: the precision pressing mechanism (6) comprises two limiting plates (61), the lower surfaces of the two limiting plates (61) are fixedly connected with the upper surfaces of the two sides of the concave seat (1) respectively, a side face of each of the two limiting plates (61) is provided with a through groove (62), the inside of the through groove (62) is vertically connected with a sliding shaft (63), a sliding plate (64) is horizontally sleeved and slidably mounted between the lower ends of the sliding shafts (63), a second spring (65) is slidably mounted on the outer surface of the upper end of each of the two sliding shafts (63), the upper end and the lower end of the second spring (65) are fixedly connected with the upper surface of the sliding plate (64) and the upper surface of the inside of the through groove (62) respectively, the lower surfaces of the two ends of the sliding plate (64) are vertically connected with fixing blocks (66), and a second pressing roller (67) is horizontally rotatably connected between the lower ends of, the lower surface of second compression roller (67) and the last surface contact of conveyer belt (2), the upper surface perpendicular symmetry of slide (64) is rotated and is connected with two regulation poles (68), two the upper end of adjusting pole (68) is all rotated and is installed sliding block (69), two run through between sliding block (69) and be provided with lead screw (610), the both ends of lead screw (610) rotate with the top side of two limiting plates (61) respectively and are connected, one of them the embedding of the another side in top of limiting plate (61) is installed second servo motor (611), the output shaft of second servo motor (611) and the one end fixed connection of lead screw (610).

7. The multi-stage cushion flattening system for corrugated containers according to claim 6, wherein: the screw thread that the surface of lead screw (610) is located the center both sides sets up to opposite, two a side of sliding block (69) is seted up respectively with two kinds of screw thread assorted screw holes.

8. The multi-stage cushion flattening system for corrugated containers according to claim 1, wherein: the dust removing mechanism (4) comprises two rectangular frames (41), the lower surfaces of the two rectangular frames (41) are respectively fixedly connected with the upper surfaces of the two sides of the concave seat (1), and a conveying pipe (42) is horizontally and slidably arranged between the lower inner parts of the two rectangular frames (41), the lower surface of the conveying pipe (42) is uniformly provided with spray heads (43), the lower ends of the spray heads (43) are in contact with the upper surface of the conveying belt (2), air cylinders (44) are embedded in the upper surfaces of the two rectangular frames (41), output shafts of the two air cylinders (44) are fixedly connected with the upper surfaces of the two ends of the conveying pipe (42) respectively, an air pump (45) corresponding to the delivery pipe (42) is fixedly arranged on one side surface of the concave seat (1), an air outlet end of the air pump (45) is fixedly connected with an extension tube (46), and one end of the extension tube (46) is fixedly connected with one end of the conveying tube (42).

9. A multi-stage buffering and flattening method for corrugated cartons is characterized by comprising the following steps: the method comprises the following steps:

s1, dust removal: before the corrugated case is flattened, the dust removal mechanism (4) is used for carrying out dust removal on the surface of the corrugated case, and dust particles on the surface of the corrugated case are removed;

s2, initial pressure: when the corrugated case passes through the primary pressing mechanism (5), the primary pressing mechanism (5) performs primary pressing work on the corrugated case;

s3, coining: after the preliminary pressing is completed in step S2, the coining mechanism (6) performs the coining work on the corrugated box.

10. The multi-stage buffering and flattening method for corrugated cases according to claim 9, wherein: in the steps S2 and S3, the thickness of the pressed corrugated box is set according to the production requirement.