CN111807107A

CN111807107A - Paperboard processing line

Info

Publication number: CN111807107A
Application number: CN202010695111.4A
Authority: CN
Inventors: 朱蓉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-19
Filing date: 2020-07-19
Publication date: 2020-10-23

Abstract

The invention provides a paperboard processing line.A paperboard cutting device is used for cutting long-strip-shaped paperboards into blocks and stacking the blocks into a plurality of piles; the paperboard stacking device comprises a conveying device and a stacking mechanism; the conveying device comprises a trolley, four conveying mechanisms and a turnover mechanism, wherein the trolley can move longitudinally, the two fourth conveying mechanisms are distributed at intervals longitudinally and used for receiving the paperboards separated from the third conveying mechanism, and the turnover mechanism is used for turning over a paperboard stack on one of the fourth conveying mechanisms by 180 degrees; the fifth conveying mechanism is used for receiving the paper boards separated from the fourth conveying mechanism; the stacking mechanism is used for stacking the paperboard piles separated from the fifth conveying mechanism. According to the invention, the stacking is carried out in a forward stacking mode and a reverse stacking mode, compared with the stacking mode of forward stacking and reverse stacking, the stacking efficiency is greatly improved, the automation degree of the processing line is high, the manual guard is not needed in the process, the labor intensity is reduced, and meanwhile, the labor cost is saved.

Description

Paperboard processing line

Technical Field

The invention relates to the field of paperboards, in particular to a paperboard processing line.

Background

The corrugated board is also called corrugated board, is formed by bonding at least one layer of corrugated paper and one layer of box board paper, and has better elasticity and extensibility; the method is mainly used for manufacturing cartons, the sandwich of the cartons and other packaging materials of fragile commodities. The problems that the paperboard produced by the traditional paperboard production line is uneven in dryness and humidity, upwarps and bends downwards, is easy to deform and the like generally exist. In order to solve the problems, 7-10 operators are arranged at the downstream of the paperboard production line, namely counting and stacking of the paperboards are manually carried out after the paperboards are cut, and then operations such as turning, packing, stacking and the like are carried out on the stacked paperboards. The above links have high labor intensity, high labor cost and low processing efficiency, and are not beneficial to long-term development of enterprises.

Disclosure of Invention

The invention aims to provide a paperboard processing line to solve the problem of low paperboard stacking efficiency in the prior art.

In order to solve the above technical problems, the present invention provides a paperboard processing line, comprising:

the paperboard stacking device is arranged at the downstream of the paperboard cutting device;

the paperboard cutting device is used for cutting the long-strip-shaped paperboard into blocks and stacking the blocks into a plurality of piles; the paperboard cutting device comprises a first conveying mechanism, a cutting mechanism and a second conveying mechanism; the cutting mechanism comprises a bracket and a cutting and pushing unit, the bracket is used for bearing the paper board with the preset length separated from the first conveying mechanism, the cutting and pushing unit is used for carrying out primary cutting on the paper board on the bracket along the longitudinal direction to obtain the paper board with the preset length, and carrying out secondary cutting along the longitudinal direction to obtain a plurality of paper boards with preset sizes; the second conveying mechanism is used for bearing the paper boards separated from the cutting mechanism and stacking the paper boards into a pile in the height direction;

the paperboard stacking device is used for stacking multiple stacks of paperboards in a forward stacking and reverse stacking mode; the paperboard stacking device comprises a third conveying mechanism, a conveying device, a fifth conveying mechanism and a stacking mechanism; the third conveying mechanism is used for receiving the paperboard stacks separated from the second conveying mechanism; the conveying device comprises a trolley, two fourth conveying mechanisms and a turnover mechanism, wherein the two fourth conveying mechanisms and the turnover mechanism are mounted on the trolley, the trolley can move longitudinally, the two fourth conveying mechanisms are distributed at intervals longitudinally and used for receiving paper boards separated from the third conveying mechanism, and the turnover mechanism is used for turning over a paper board stack on one fourth conveying mechanism for 180 degrees; the fifth conveying mechanism is used for receiving the paper boards separated from the fourth conveying mechanism; the stacking mechanism is used for stacking the paperboard piles separated from the fifth conveying mechanism.

Preferably, the support comprises a lower support and an upper support, the lower support and the upper support are of frame structures formed by connecting two transverse plates and a plurality of longitudinal plates, the two transverse plates extend along the transverse direction and are distributed at intervals in the longitudinal direction, the longitudinal plates extend along the longitudinal direction, two ends of each longitudinal plate are respectively and fixedly installed on the two transverse plates, the upper support is connected with the support driving assembly and can be driven by the support driving assembly to perform lifting motion relative to the lower support, and when the upper support moves to the stroke end, the upper support can be coplanar with the working surface of the first conveying mechanism; the support driving assembly comprises a support driving motor, a plurality of driving shafts and a connecting block, the support driving motor is installed on the lower support, the axes of the driving shafts extend along the transverse direction and are distributed at intervals in the longitudinal direction, and the driving shafts are rotatably connected to a lower longitudinal plate of the lower support; the lower part of the connecting block is sleeved on the driving shaft, and the upper part of the connecting block is pivoted on an upper longitudinal plate of the upper bracket.

Preferably, the cutting and pushing unit comprises a walking frame, a cutter wheel and a pushing piece, wherein the cutter wheel and the pushing piece are mounted on the walking frame, the walking frame is driven by a walking driving mechanism to horizontally move along the longitudinal direction, the cutter wheel and the pushing piece are both located in a gap between the support and the first conveying mechanism, the cutter wheel can move up and down relative to the walking frame and is used for cutting the paper boards, and the pushing piece is used for pushing the cut paper boards to the second conveying mechanism.

Preferably, the walking frame is of a frame structure, and is slidably mounted on the first guide rail, the first guide rail extends along the longitudinal direction, the walking driving mechanism comprises a walking driving motor, a transmission gear and a longitudinal rack, the walking driving motor is fixedly mounted on the walking frame, the transmission gear is sleeved on a rotating shaft of the walking driving motor, and the longitudinal rack is fixedly mounted on the first guide rail, meshed with the transmission gear and extends along the length direction of the first guide rail.

Preferably, the walking frame comprises two side frames arranged at intervals along the longitudinal direction, a knife wheel frame is connected between the two side frames in a rotating mode, a knife wheel is connected to the knife wheel frame in a rotating mode and driven to rotate by a knife wheel driving motor installed on the knife wheel frame, an adjusting seat is fixedly installed at the bottom of the knife wheel frame, an adjusting piece is connected between the adjusting seat and the walking frame and comprises a cylinder body section and a piston section, the cylinder body section is hinged to the walking frame, one end of the piston section is connected to the inside of the cylinder body in a sliding mode, and the other end of the piston section is hinged to the adjusting seat.

Preferably, the trolley is slidably mounted on two second guide rails, the second guide rails extend along the longitudinal direction and are distributed at intervals in the transverse direction, and the trolley driving mechanism is mounted at the bottom of the trolley and driven by the trolley driving mechanism to move along the second guide rails; the fourth conveying mechanism comprises a plurality of fourth conveying belts, and the fourth conveying belts extend along the transverse direction and are distributed at intervals in the longitudinal direction.

Preferably, the turnover mechanism comprises two installation bases, a turnover shaft, a plurality of supporting plates and a plurality of pressing plates, wherein the two installation bases are fixedly installed on the trolley and are respectively positioned at two longitudinal sides of one fourth conveying mechanism; the supporting plates extend along the transverse direction and are distributed at intervals in the axial direction of the turnover shaft, and the upper surfaces of the supporting plates are coplanar with the upper surface of the fourth conveyor belt; a limiting plate is fixedly arranged on one side, close to the third conveying mechanism, of the supporting plate, and the supporting plate and the limiting plate are located between every two adjacent fourth conveying belts; the pressing plate is located the limiting plate and is close to third transport mechanism one side, and the pressing plate is along horizontal extension, and the relative layer board of pressing plate ability carries out elevating movement.

Preferably, the pressure plates are fixedly connected through a fixing plate, and a lifting plate is fixedly installed on one side, away from the third conveying mechanism, of the fixing plate; the limiting plate is fixedly provided with an ear plate on one side, deviating from the third conveying mechanism, of the limiting plate, the ear plate is located below the lifting plate and sleeved on the turnover shaft, a jacking driving mechanism is fixedly arranged at the top of one of the ear plates, the fixed end of the jacking driving mechanism is installed on the ear plate, and the movable end of the jacking driving mechanism is installed on the lifting plate and used for driving the lifting plate to perform lifting movement.

Preferably, the stacking mechanism comprises a bearing frame, a bearing seat and a lifting driving assembly, the bearing frame comprises two vertical rods which are vertically arranged, the two vertical rods are longitudinally distributed at intervals and are respectively positioned at two sides of the fifth conveying mechanism, the bearing seat can be vertically and slidably installed between the two vertical rods, and the lifting driving assembly is in driving connection with the bearing seat and is used for driving the bearing seat to perform lifting movement along the height direction of the vertical rods; the lifting driving assembly comprises a lifting driving motor, a winding roller, a guide wheel and a steel wire rope, the lifting driving motor is located below the fifth conveying belt, the lifting driving motor is connected with a winding shaft in a driving mode, the axis of the winding shaft extends longitudinally, the winding roller is sleeved on the winding shaft, one end of the steel wire rope is fixed on the winding roller, and the other end of the steel wire rope is fixed on the bearing seat after bypassing the guide wheel.

Preferably, the paperboard stacking device further comprises a sorting mechanism, the sorting mechanism is located at the discharge end of the fifth conveying mechanism and is used for sorting the paperboards on the bearing plate, and the sorting mechanism comprises two sorting plates which can be close to or far away from each other.

According to the technical scheme, the invention has the advantages and positive effects that:

can carry out twice cutting with rectangular form cardboard through cardboard cutting device, obtain the cardboard of predetermined size to make the cardboard pile up, cutting efficiency obtains very big promotion for traditional cutting device.

The cutting and pushing unit can not only cut the long-strip-shaped paper board for one time, but also push the cut paper board out, so that the paper board can be cut for the second time. That is to say, cutting push unit possesses cutting and propelling movement function simultaneously, and this mode reasonable in design, the structure is ingenious, need not too much power supply, under the prerequisite that does not influence machining efficiency, can also save manufacturing cost.

Can also carry into the cardboard of piling up to cardboard pile device through cardboard cutting device, help guaranteeing cardboard pile device's machining efficiency, reduce cardboard pile device's idle latency to help promoting the machining efficiency of whole processing line.

Through the cardboard pile device can pile up the cardboard pile with the form of positive pile and reverse pile, prevent to lead to the cardboard to take place to warp and warp the deformation because of depositing for a long time, guaranteed the quality of cardboard.

Cardboard tilting mechanism can overturn 180 with a pile of cardboard, and than the cardboard upset of sola, the treatment effeciency obtains greatly promoting.

The paperboard stacking device comprises two fourth conveying mechanisms, the turnover mechanism can turn over the paperboard pile on one of the fourth conveying mechanisms, the paperboard pile is turned over by the turnover mechanism, so that the paperboard pile is turned over from the front side to the reverse side upwards, and the other fourth conveying mechanism can convey the other paper board pile with the front side upwards, so that the conveying of the paper board pile in the form of the front side pile and the reverse side pile is realized.

The bearing seat for bearing the paperboard stack can be displaced in the height direction, and no part is arranged at the bottom of the bearing seat, namely, the bearing seat can be directly contacted with the ground after the stacking is finished. This can raise the maximum stacking height of the cardboard.

Can continuously pat the cardboard on bearing the weight of the seat through arrangement mechanism, make the cardboard arrange neatly, the pile is orderly, has guaranteed the structural stability that the cardboard was piled, and the cardboard is piled and takes place to empty when avoiding the transport.

According to the invention, the paper boards can be stacked into a plurality of piles while being cut by the paper board cutting device, so that the efficiency of conveying materials to the paper board stacking device is improved. The paperboard piles are piled in a forward pile and reverse pile form through the paperboard piling device, namely, the cut paperboards are piled in a forward pile and reverse pile form in the height direction. When the turnover mechanism overturns the paper board, the paper board stack can be conveyed, so that the stacking efficiency is improved. In addition, this processing line degree of automation is high, and the in-process need not artifical on duty, when reducing intensity of labour, has saved the human cost.

Drawings

Figure 1 is a schematic diagram of the structure of the paperboard processing line of the present invention.

Fig. 2 is a schematic structural view of the board cutting apparatus of fig. 1.

Fig. 3 is a schematic structural diagram of the paper board pushing unit in fig. 2.

Fig. 4 is a schematic structural view of the portion of the stent of fig. 2.

Fig. 5 is a partially enlarged schematic view of fig. 4.

Fig. 6-9 are schematic views of the structure of the paperboard stacking device.

Fig. 10 is a schematic view of the structure of the portion where the turnover mechanism is located in the present invention.

FIG. 11 is a schematic structural view of an embodiment of the collating mechanism of the present invention.

FIG. 12 is a schematic structural view of another embodiment of the collating mechanism of the present invention.

Fig. 13 is a schematic structural view of the stacking mechanism of the present invention.

Fig. 14 is a partially enlarged schematic view of fig. 10.

Fig. 15 is a partially enlarged schematic view of fig. 14.

The reference numerals are explained below: 1. a third transport mechanism; 2. a conveying device; 21. a second guide rail; 22. a trolley; 23. a fourth transport mechanism; 231. a fourth conveyor belt; 24. a turnover mechanism; 241. turning over a motor; 242. a turning shaft; 243. a support plate; 244. a limiting plate; 2441. a slide rail; 2442. a fixing plate; 245. a jacking driving mechanism; 246. a lifting plate; 2461. a roller; 247. pressing a plate; 3. a fourth transport mechanism; 4. a stacking mechanism; 41. a lifting drive motor; 42. a spool; 43. a winding roller; 44. erecting a rod; 45. a bearing seat; 46. a guide wheel; 47. a wire rope; 5. a sorting mechanism; 51. arranging a plate; 52. a guide bar; 53. a buffer spring; 54. a transverse rack; 55. an incomplete gear; 56. a push plate; 57. a stopper plate; 58. a connecting rod; 6. a first conveying mechanism; 7. a cutting and pushing unit; 71. a walking frame; 72. a push rod; 73. a support bar; 74. a cutter wheel driving motor; 75. a tool carrier; 76. an adjustment member; 77. a cutter wheel; 8. a support; 81. a lower bracket; 811. a lower longitudinal plate; 82. an upper bracket; 821. an upper longitudinal plate; 83. a support driving motor; 831. connecting blocks; 832. a drive shaft; 84. a limiting block; 85. a rotating shaft; 86. a cutting wheel; 87. a pinch roller; 9. a second transport mechanism.

Detailed Description

Exemplary embodiments that embody features and advantages of the invention are described in detail below in the specification. It is to be understood that the invention is capable of other embodiments and that various changes in form and details may be made therein without departing from the scope of the invention and the description and drawings are to be regarded as illustrative in nature and not as restrictive.

The invention provides a paperboard processing line which is used for cutting and stacking paperboards. This processing line need not artificial intervention in the course of working, has saved the human cost, has shortened process time, has realized the quick cutting and the stack of cardboard.

The paperboard processing line includes a paperboard cutting device and a paperboard stacking device. The strip-shaped paperboards are cut into blocks through the paperboard cutting device and stacked to form piles, and multiple piles of paperboards are stacked in the vertical direction in a positive-negative mode through the paperboard stacking device, so that the whole paperboards are processed.

Referring to fig. 1, the cutting apparatus for paper sheets includes a first conveying mechanism 6, a cutting mechanism and a second conveying mechanism 9.

For convenience of description, the conveying direction of the first conveying mechanism 6 is defined as a transverse direction, and a horizontal direction perpendicular to the transverse direction is defined as a longitudinal direction.

The first conveying mechanism 6 is used for horizontally conveying the long-strip-shaped paper boards, and in the embodiment, the first conveying mechanism 6 comprises a first conveyor belt extending horizontally.

The cutting mechanism is located the ejection of compact side of first transport mechanism 6, and cutting mechanism includes support 8, cutting propelling movement unit 7, and support 8 is used for bearing the cardboard, and has the clearance between the first transport mechanism 6, and cutting propelling movement unit 7 is used for carrying out vertical cutting to the cardboard on the support 8 in this clearance department to cardboard after will cutting is to being close to the horizontal propelling movement of second transport mechanism 9 direction.

Referring to fig. 4, the bracket 8 includes a lower bracket 81 and an upper bracket 82, the lower bracket 81 and the upper bracket 82 are both frame-type structures formed by connecting two transverse plates and a plurality of longitudinal plates, the two transverse plates extend along the transverse direction and are distributed at intervals along the longitudinal direction, the longitudinal plates extend along the longitudinal direction, and two ends of the longitudinal plates are respectively and fixedly mounted on the two transverse plates. The lower support 81 is installed on the ground of the factory building, a preset height is reserved between the lower support 81 and the ground, and the upper support 82 is connected with a support driving assembly installed on the lower support 81 and can be driven by the support driving assembly to move up and down relative to the lower support 81. When the upper bracket 82 moves to the stroke end, the upper surface of the upper bracket 82 is on the same plane with the working surface of the first conveying mechanism 6, so that the paper board can be carried by the upper bracket 82 after being separated from the first conveying mechanism 6.

Specifically, referring to fig. 4 and 5, in this embodiment, the support driving assembly includes a support driving motor 83, a plurality of driving shafts 832 and a connecting block 831, the support driving motor 83 is mounted on the lower support 81, the axes of the plurality of driving shafts 832 extend along the transverse direction and are distributed at intervals in the longitudinal direction, and the driving shafts 832 are rotatably connected to the lower vertical plate 811 of the lower support 81; the lower portion of the connecting block 831 is fitted around the driving shaft 832, and the upper portion of the connecting block 831 is pivotally connected to the upper longitudinal plate 821 of the upper bracket 82.

The principle of the bracket driving assembly driving the upper bracket 82 to ascend and descend is as follows: the support driving motor 83 drives the driving shaft 832 to rotate, the driving shaft 832 rotates to drive the connecting block 831 to rotate, and the connecting block 831 drives the upper support 82 to turn up, so that the upper support 82 rises relative to the lower support 81 until the upper support is coplanar with the working surface of the first conveying mechanism 6. After the cutting operation of the cardboard sheets is completed, the carriage driving motor 83 drives the driving shaft 832 to move reversely to drive the upper carriage 82 to turn down so that the upper surface of the upper carriage 82 is positioned below the working surface of the first transfer mechanism 6 for the subsequent pushing operation.

Further, a limit block 84 is fixedly installed on one side of the lower bracket 81 far away from the first conveying mechanism 6, and the limit block 84 extends horizontally along the longitudinal direction and is located on the movement stroke of the paper board on the first conveying mechanism 6. The cardboard can be limited by the limiting block 84, so that the cardboard with the preset length can be cut at each time. In the process of pushing the paper boards by the pushing member, the limiting block 84 also has a guiding function, so that the paper boards can move along the length direction of the limiting block 84, and the paper boards are prevented from being dislocated in the transverse direction.

Specifically, the limiting block 84 is substantially "L" shaped, and includes a limiting portion and an installation portion that are connected to each other, the limiting portion is vertically installed on the installation portion, and the installation portion is fixedly installed on the lower bracket 81 to fix the limiting block 84.

Referring to fig. 2 and 3, the cutting and pushing unit 7 includes a traveling frame 71, a cutter wheel 77 mounted on the traveling frame 71, and a pushing member, the traveling frame 71 is driven by a traveling driving mechanism to move horizontally along a longitudinal direction, the cutter wheel 77 and the pushing member are both located at a gap between the bracket 8 and the first conveying mechanism 6, the cutter wheel 77 can move up and down relative to the traveling frame 71 to cut the cardboard, and the pushing member is used for pushing the cut cardboard to the second conveying mechanism 9.

Referring to fig. 2, the walking frame 71 is a frame structure, and is slidably mounted on a first guide rail, which is installed on the floor of the factory building and extends in the longitudinal direction. The travel driving mechanism (not shown) includes a travel driving motor, a transmission gear and a longitudinal rack, the travel driving motor is fixedly mounted on the travel frame 71, the transmission gear is sleeved on a rotating shaft of the travel driving motor, and the longitudinal rack is fixedly mounted on the first guide rail, meshed with the transmission gear and extended along the length direction of the first guide rail. Thus, after the walking driving motor is started, the walking driving motor drives the transmission gear to rotate, and the transmission gear is meshed with the longitudinal rack when rotating, so as to drive the walking frame 71 to move longitudinally along the first guide rail.

Referring to fig. 3, in the present embodiment, the walking frame 71 includes two side frames spaced apart from each other in a longitudinal direction, a cutter wheel frame 75 is rotatably connected between the two side frames, and a cutter wheel 77 is rotatably connected to the cutter wheel frame 75 and is driven to rotate by a cutter wheel driving motor 74 mounted on the cutter wheel frame 75. The bottom of the knife wheel frame 75 is fixedly provided with an adjusting seat, an adjusting piece 76 is connected between the adjusting seat and the walking frame 71, the adjusting piece 76 comprises a cylinder section and a piston section, the cylinder section is hinged on the walking frame 71, one end of the piston section is connected in the cylinder section in a sliding manner, and the other end of the piston section is hinged on the adjusting seat. Specifically, the adjusting member 76 may be a power source such as an air cylinder or a hydraulic cylinder. When the piston section of the adjusting element 76 moves away from the cylinder section, the knife flywheel frame 75 is lifted upwards, so that the knife flywheel 77 is driven to move upwards; when the piston section of the adjusting member 76 moves in a direction to approach the cylinder section, the cutter wheel carrier 75 is pulled down, thereby moving the cutter wheel 77 downward.

The pusher comprises a push bar 72, the push bar 72 being vertically mounted on the walking frame 71, the push bar 72 being adjacent to the second transport mechanism 9 with respect to the cutter wheel 77. Thus, after the cutter wheel 77 finishes the cutting operation on the paper board, the pushing rod 72 can smoothly push the paper board on the upper bracket 82 only by moving forward for a short distance, and the technical effects of saving energy consumption and improving cutting pushing efficiency can be achieved due to the reduction of the displacement of the walking frame 71.

Further, the pushing member further comprises a support rod 73, the support rod 73 is obliquely arranged, one end of the support rod 73 is fixedly installed on the walking frame 71, and the other end of the support rod 73 is fixedly installed on the pushing rod 72. Can improve the structural strength of push rod 72 through bracing piece 73, avoid taking place structural deformation because of push rod 72 after last time of using to the result of use of push rod 72 has been guaranteed.

For convenience of description, the direction in which the cutting mechanism approaches the second conveying mechanism 9 is taken as the front, and the direction in which the cutting mechanism departs from the second conveying mechanism 9 is taken as the rear.

The use principle of the cutting and pushing unit is as follows: the bracket driving motor 83 drives the upper bracket 82 to move upwards, when the top surface of the upper bracket 82 is coplanar with the working surface of the first conveying mechanism 6, the paper board is carried by the upper bracket 82 after being separated from the first conveying mechanism 6, and at the moment, the knife wheel 77 and the push rod 72 are both positioned below the top surface of the upper bracket 82. When the paper board moves to the upper bracket 82 for a predetermined length, the first conveying mechanism 6 stops conveying, the adjusting cutter wheel 77 moves for a predetermined displacement in the vertical direction, so that the cutter wheel 77 is partially positioned above the upper bracket 82, and the traveling mechanism drives the traveling frame 71 to move longitudinally backwards, thereby driving the cutter wheel 77 and the pushing rod 72 to move backwards. The cutter wheel 77 rotates about its horizontal axis during the backward movement to apply the strip of paper sheet, cutting a predetermined length of paper sheet. After a cutting operation is completed, the upper bracket 82 is driven by the bracket driving motor 83 to move downward until the top surface of the upper bracket 82 is located below the push rod 72. The cutter wheel 77 is adjusted to move in the vertical direction by a predetermined displacement so that the cutter wheel 77 is located below the upper bracket. The traveling mechanism drives the traveling frame 71 to move forward and longitudinally, so that the cutter wheel 77 and the pushing rod 72 are driven to move forward. The pusher 72, during its forward movement, will come into contact with the sheet on the upper support 82 and, after contact, act on the sheet to move it horizontally towards the second transfer mechanism 9 until it is completely detached from the upper support.

Referring to fig. 4, the cutting mechanism further includes a rotating shaft 85 between the support 8 and the second transfer mechanism 9, the rotating shaft 85 being located below the working surface (top surface) of the upper support 82. Specifically, axle seats are fixedly installed on both lateral sides of the lower bracket 81, the rotating shaft 85 is rotatably connected to the axle seats, and the axis of the rotating shaft 85 extends in the lateral direction. The rotating shaft 85 is sleeved with a plurality of cutting wheels 86, the cutting wheels 86 are distributed at intervals along the axial direction of the rotating shaft 85, the cutting wheels 86 are partially positioned above the upper support 82, and a preset distance is reserved between every two adjacent cutting wheels 86.

During the movement process of the pushing rod 72 pushing the paper boards to the position close to the second conveying mechanism 9, the paper boards can contact with the cutting wheel 86, and the cutting wheel 86 acts on the paper boards pushed by the pushing rod 72 in the rotating process so as to perform secondary cutting on the paper boards, so that a plurality of paper boards with preset sizes are obtained. The number of cutting wheels 86 can be selected according to the actual need. In this embodiment, the rotating shaft 85 is sleeved with 2 cutting wheels 86, and in the process that the paperboard passes through the cutting wheels 86, the cutting wheels 86 perform secondary cutting on the paperboard to obtain 3 pieces of paperboard with a predetermined size.

Referring again to fig. 4, a pressing wheel 87 is rotatably connected to the shaft seat, the pressing wheel 87 is positioned between the cutting wheel 86 and the bracket 8 and is arranged close to the cutting wheel 86, the pressing wheel 87 and the upper bracket 82 are provided with holes, and the paper board can move forwards through the holes of the pressing wheel 87 and the upper bracket 82. Can extrude the cardboard through pinch roller 87, prevent that lateral motion from taking place to the cardboard when the cutting to the cutting effect to the cardboard has been guaranteed. Correspondingly, a press wheel 87 is also rotatably connected to the first conveyor 6, the press wheel 87 is arranged by the support 8, and a gap is formed between the press wheel 87 and the first conveyor, and the paper board on the first conveyor can move to the upper support 82 after passing through the gap. This pinch roller 87 can extrude the cardboard, prevents that the cardboard from taking place longitudinal motion when the cutting to the cutting effect to the cardboard has been guaranteed.

Referring to fig. 1 or 2, a second conveyor 9 is located at the discharge side of the cutting mechanism for carrying and conveying the cardboard sheets of a predetermined size, and the second conveyor 9 includes a plurality of second conveyor belts extending in the longitudinal direction, and the second conveyor belts are capable of performing an elevating movement in the vertical direction. Specifically, the second conveyor belt is installed on a rotating shaft of a lifting seat, and the lifting seat is driven by a lifting driving mechanism to move up and down.

The lifting driving mechanism can drive the lifting seat to move up and down, and the lifting seat drives the second conveyor belt on the lifting seat to move up and down, so that the working surface of the second conveyor belt can be coplanar with the top surface of the upper support 82 during discharging. So that the sheets can be stacked in stacks on the second conveyor belt.

The use method of the paperboard cutting device in the embodiment is as follows:

s1, adjusting the upper bracket 82 to enable the working surface of the upper bracket 82 to be coplanar with the working surface of the first conveying mechanism 6;

s2, the first conveying mechanism 6 conveys the paper board along the transverse direction, and after the paper board moves to the upper bracket 82 for a preset length, the first conveying mechanism 6 stops conveying the paper board;

s3; the cutter wheel 77 of the cutting mechanism cuts the paper board on the upper bracket 82;

specifically, the position of the cutter wheel 77 in the vertical direction is adjusted, so that the cutter wheel 77 is partially located above the upper bracket 82, the traveling frame 71 moves backwards along the first guide rail, the cutter wheel 77 on the traveling frame is driven to move, and the cutter wheel 77 cuts the paper board on the upper bracket 82 once in the moving process, so that the paper board with the preset length is obtained.

S4: the pusher of the cutting mechanism pushes the sheet off the upper bracket 82 and a secondary cut is made to the sheet by the cutting wheel 86;

specifically, the upper bracket 82 is adjusted so that the working surface of the upper bracket 82 is located below the working surface of the first conveyance mechanism 6; the position of the knife flywheel 77 in the vertical direction is adjusted, the knife flywheel 77 is located below the upper support 82, the walking frame 71 moves forwards along the first guide rail to drive the pushing rod 72 on the walking frame to move forwards, the paper board is pushed away from the upper support 82 by the pushing rod 72 in the moving process, and in the paper board pushing process of the pushing rod 72, the cutting wheel 86 performs secondary cutting on the paper board in the pushing direction of the pushing rod 72 to obtain a plurality of paper boards with preset sizes.

S5: the second conveying mechanism 9 continuously receives the pushed paperboards, stacks the paperboards into a plurality of piles, and conveys the plurality of piles of paperboards to the paperboard stacking device;

specifically, the vertical position of the working surface of the second conveying mechanism 9 is adjusted to make the uppermost paperboard close to the top surface of the upper bracket 82, so that the paperboards can be stacked on the second transmission mechanism, and after the paperboards are stacked to a preset height, the second transmission mechanism longitudinally transmits the paperboards to make the paperboards enter the paperboard stacking device.

Referring to fig. 1 and 6, the paperboard stacking device includes a third conveying mechanism 1, a conveying device 2, a fifth conveying mechanism and a stacking mechanism 4. Referring to fig. 9 and 10, the conveying device 2 includes a trolley 22, two fourth conveying mechanisms 23 mounted on the trolley 22, and a turnover mechanism 24.

Referring to fig. 1, the third conveying mechanism 1 is located at the discharging side of the second conveying mechanism 9, and in this embodiment, the third conveying mechanism 1 includes a third conveyor belt extending in the transverse direction.

Referring to fig. 8-10, a trolley 22 is provided for receiving the stack of sheets off the third conveyor and is capable of horizontal movement in the longitudinal direction. Specifically, two second guide rails 21 are installed on the ground, and the second guide rails 21 extend in the longitudinal direction and are distributed at intervals in the transverse direction. The bottom of the trolley 22 is provided with a trolley driving mechanism, and the structure of the trolley driving mechanism can refer to the structure of the walking driving mechanism, and for saving space, the detailed description is omitted.

Two fourth conveying mechanisms 23 are mounted on the top of the trolley 22, the two fourth conveying mechanisms 23 are distributed at intervals along the longitudinal direction, one fourth conveying mechanism 23 is used for conveying the paperboard bundle separated from the third conveying mechanism 1 to the stacking mechanism 4 in a mode that the front surface of the paperboard bundle is upward, and the other fourth conveying mechanism 23 is used for conveying the paperboard bundle separated from the third conveying mechanism 1 to the stacking mechanism 4 in a mode that the reverse surface of the paperboard bundle is upward. Referring to fig. 14, the fourth conveyor 23 includes a plurality of fourth conveyor belts 231, and the fourth conveyor belts 231 extend in the transverse direction and are spaced apart in the longitudinal direction. The working face of the fourth conveyor belt 231 and the working face of the third conveyor belt are coplanar.

The turning mechanism 24 is used for turning the stacked paper boards on one of the fourth conveying mechanisms by 180 degrees from front side up to back side up. The front surface and the back surface in the application are relative, the upper surface of the paper board on the first conveyor belt is taken as the front surface, and the other surface opposite to the front surface is taken as the back surface.

Referring to FIG. 14, in the present embodiment, the flipping mechanism 24 includes two mounting bases, a flipping shaft 242, a plurality of support plates 243, and a plurality of pressing plates 247.

The two installation seats are fixedly installed on the trolley 22 and located on two longitudinal sides of one fourth conveying mechanism 23 respectively, the turning shaft 242 is rotatably connected to the two installation seats, the axis of the turning shaft 242 extends longitudinally and is located above the fourth conveying belt 231, and the turning shaft can be driven by the turning motor 241 to rotate. The pallets 243 extend in the lateral direction and are spaced apart in the axial direction of the turning shaft 242, and the upper surfaces of the pallets 243 are coplanar with the upper surface of the fourth conveyor belt 231. A limiting plate 244 is fixedly mounted on one side of the supporting plate 243 close to the third conveying mechanism, the supporting plate 243 and the limiting plate 244 are connected to form an L-shaped structure and are located between two adjacent fourth conveying belts 231, and the limiting plate 244 and the supporting plate 243 can be fixed in a welding mode. The pressing plate 247 is located on the side of the limiting plate 244 close to the third conveyance mechanism 1, and the pressing plate 247 extends in the lateral direction. Referring to fig. 15, the pressing plates 247 are fixedly connected to each other by a fixing plate 2442, a substantially U-shaped lifting plate 246 is fixedly installed on a side of the fixing plate 2442 away from the third conveying mechanism 1, and the lifting plate 246 protrudes out of the limiting plate 244 and can move in a vertical direction. An ear plate (not labeled) is also fixedly mounted on a side of the limiting plate 244 away from the third conveying mechanism 1, and the ear plate is located below the lifting plate 246 and is sleeved on the turning shaft 242 to fix the supporting plate 243 and the rotating shaft 85. The top of one of the ear plates is fixedly provided with a jacking driving mechanism 245, in this embodiment, the jacking driving mechanism 245 can adopt a power source such as an air cylinder or a hydraulic cylinder, etc., the fixed end of the jacking driving mechanism 245 is installed on the ear plate, and the movable end is installed on the lifting plate 246 and is used for driving the lifting plate 246 to perform lifting movement so as to drive the pressing plate 247 to be close to or far away from the supporting plate 243.

Referring to fig. 15 again, further, a slide rail 2441 is disposed on one side of one of the limiting plates 244 away from the third conveying mechanism 1, the slide rail 2441 extends in the vertical direction, a cavity with a square cross section is formed by the enclosure between the lifting plate 246 and the fixing plate 2442, and the limiting plate 244 penetrates through the cavity; the lifting plate 246 is rotatably connected with a roller 2461, and the roller 2461 abuts against the sliding rail 2441. Thus, the lifting plate 246 can drive the fixing plate 2442 and the pressing plate 247 to move up and down along the sliding rail 2441, so that the limiting plate 244 can limit the paperboard and also can guide the pressing plate 247 in movement. In addition, the movement of the pressing plate 247 can be more stable by the matching form of the roller and the sliding rail 2441.

The operating principle of the turnover mechanism 24 in this embodiment is as follows:

adjusting the longitudinal position of the cart 22 so that the fourth conveyor belt 231 and the third conveyor belt corresponding to the turnover mechanism 24 are aligned; a stack of the paper sheets is transferred to the fourth conveyor 231 by the third conveyor, and after the stack of paper sheets moves onto the fourth conveyor 231, the paper sheets are stopped by the stopper plate 244 and contact the upper surface of the support plate 243. The lifting plate 246 is driven to move downwards by the lifting driving device, and the lifting plate 246 moves to drive the pressing plate 247 to move downwards until the paper boards are squeezed between the supporting plate 243 and the pressing plate 247. The turning shaft 242 is driven to rotate by the turning motor 241, and when the turning shaft 242 rotates, the supporting plate 243 and the pressing plate 247 are driven to rotate around the axis of the turning shaft 242. The rotation of the cardboard is accompanied by the cardboard being clamped between the pallet 243 and the press plate 247. When the paper board rotates 180 degrees, the paper board is changed from a front side up to a back side up, the lifting plate 246 is driven to reset through the lifting driving device, and the paper board moves downwards along with the lifting plate 246 until the paper board falls onto the fourth conveyor belt 231 again. The trolley 22 moves longitudinally while the turnover mechanism 24 drives the paper boards to turn over, so that another fourth conveyor belt 231 is flush with the third conveyor belt, another bundle of paper boards can be conveyed onto the third conveyor belt through the third conveyor belt, the paper board bundle enters the fifth conveying mechanism after being separated from the fourth conveyor belt 231, then the trolley 22 moves longitudinally again, so that the fourth conveyor belt 231 corresponding to the turnover mechanism 24 is aligned with the third conveyor belt again, in the process, the paper board bundle with the upper reverse side facing upwards is conveyed onto the fifth conveying mechanism through the fourth conveyor belt 231, the turnover shaft 242 is driven by the turnover motor 241 to drive the supporting plate 243 and the pressing plate 247 to reset, meanwhile, the third conveyor belt conveys another bundle of paper boards onto the fourth conveyor belt 231, and the process is repeated.

The fifth transport mechanism is located at the discharge side of the fourth transport mechanism 23 and comprises a fifth conveyor belt. In this embodiment, the fifth conveyor belt includes a lifting section and a horizontal section, the lifting section is inclined from bottom to top to the horizontal section, the lifting section and the fourth conveying mechanism 23 are correspondingly arranged, the trolley 22 is located between the fourth conveying mechanism 23 and the lifting section, and the stacking mechanism 4 is located at the discharge end of the horizontal section. Of course, the fifth conveyor belt may also be provided with only one lifting section, and the stacking mechanism 4 may be provided at the discharge end of the lifting section.

Referring to fig. 13, the stacking mechanism 4 includes a bearing frame, a bearing seat 45 and a lifting driving assembly, the bearing frame includes two vertical rods 44 vertically disposed, the two vertical rods 44 are longitudinally spaced apart and respectively located at two sides of the fifth conveyor belt, the bearing seat 45 can be slidably mounted between the two vertical rods 44, and the lifting driving assembly is drivingly connected to the bearing seat 45 and is used for driving the bearing seat 45 to perform lifting movement along the height direction of the vertical rods 44.

Specifically, the lifting driving assembly comprises a lifting driving motor 41, a winding roller 43, a guide wheel 46 and a steel wire rope 47, the lifting driving motor 41 is located below the fifth conveying belt, the lifting driving motor 41 is connected with the winding shaft 42 in a driving mode, the axis of the winding shaft 42 extends in the longitudinal direction, the winding roller 43 is sleeved on the winding shaft 42, one end of the steel wire rope 47 is fixed on the winding roller 43, and the other end of the steel wire rope is fixed on the bearing seat 45 after bypassing the guide wheel 46. Like this, lift driving motor 41 drive spool 42 rotates, and spool 42 drives winding roller 43 and rotates, and winding roller 43 releases or rolling wire rope 47 to the realization bears seat 45 and goes on descending or elevating movement along pole setting 44.

Further, both ends of the winding shaft 42 protrude from the fifth conveyor belt, the winding rollers 43 are respectively sleeved on both ends of the winding shaft 42, one end of each of the two wire ropes 47 is fixed on the two winding rollers 43, and the other end of each of the two wire ropes 47 is fixedly connected to both longitudinal sides of the lifting plate 246 after passing through the guide pulley 46. So, can bear the weight of seat 45 in the both sides hoist and mount of bearing seat 45 through two wire rope 47 for bear the more steady of motion of seat 45.

After the cardboard breaks away from the fifth conveyer belt, move to bear on the seat 45, can drive through the lift drive assembly and bear seat 45 and carry out elevating movement to the working face that the cardboard of the superiors is close to the fifth conveyer belt on the seat 45 is born in the assurance, thereby realizes the pile of cardboard pile. Because two fourth conveyer belts 231 on the trolley 22 respectively convey the paper boards to the fifth conveying mechanism in the form of a positive pile and a reverse pile, the paper boards on the loading board can be continuously stacked in the height direction in the form of the positive pile and the reverse pile, and the warping deformation of the paper boards caused by long-time storage is avoided through the mode, so that the product quality is ensured.

Further, at least two fork grooves are formed in one side of the bearing plate 45, which deviates from the fifth conveying mechanism, in a penetrating manner along the width direction (transverse) direction of the bearing plate, after the paperboard stacking is finished, corresponding structures of tools such as a forklift can be inserted into the fork grooves, so that the paperboard stack is rotated and moved away from the bearing seat 45, and the technical effect of conveniently and quickly transferring the paperboard stack is achieved.

Referring to fig. 12, in this embodiment, the paperboard stacking device further includes a sorting mechanism 5, and the sorting mechanism 5 is located at the discharge end of the fifth conveying mechanism and is used for sorting the paperboards on the loading board to make the stacking of the paperboards orderly, so as to improve the stability of the paperboard stack and prevent the paperboard stack from toppling over during the transfer. The tidying mechanism 5 includes a stopper plate 57, two tidying plates 51, and a tidying driving mechanism.

The fifth conveying mechanism comprises two side frames which are respectively positioned at two sides of the fifth conveying belt, extend along the transverse direction and protrude out of the fifth conveying belt, and two ends of the stop plate 57 are respectively fixed on the two side frames and positioned on the moving stroke of the paper board stack on the fifth conveying mechanism.

The two arranging plates 51 are located between the two side frames and located on the discharge side of the fifth conveyor belt, and the two arranging plates 51 are driven by the arranging driving mechanism to move longitudinally close to or away from each other.

In the process of continuously stacking the paper boards on the bearing seat 45, the stop plates 57 can limit the paper boards in the moving direction, and the two arranging plates 51 can continuously flap the paper boards on the two longitudinal sides of the paper boards. Through the cooperation of the stop plates 57 and the limit plates 244, the paperboards are orderly arranged on the bearing plates and are orderly stacked.

Specifically, the fifth conveying belt is wound on the roll shaft, two ends of the roll shaft are rotatably connected to the two side frames, and the roll shaft can rotate around the axis of the roll shaft to drive the fifth conveying belt to move, so that the purpose of conveying the paper plate is achieved. The arrangement driving mechanism comprises two groups of arrangement driving assemblies, and the two arrangement driving assemblies are matched with the two arrangement plates 51 one by one.

Referring again to fig. 12, the collation drive assembly includes a partial gear 55, a transverse rack 54, a link 58, a guide bar 52, and a buffer spring 53. The incomplete gear 55 is sleeved on the roller shaft, the transverse rack 54 is connected to the side frame in a sliding mode, extends transversely and can be meshed with the incomplete gear 55, and the guide rod 52 is fixedly connected to the outer side of the arranging plate 51 and penetrates through a guide hole formed in the side frame. The guide rod 52 extends along the longitudinal direction and can move longitudinally relative to the side frame, the buffer spring 53 is sleeved on the periphery of the guide rod 52 and is positioned between the side frame and the tidying plate 51, a connecting rod 58 is further arranged between the side frame and the tidying plate 51, one end of the connecting rod 58 is hinged on the transverse rack 54, and the other end of the connecting rod 58 is hinged on the tidying plate 51.

When the roller shaft for driving the fifth conveying belt rotates, the roller shaft rotates to drive the incomplete gear 55 to rotate, and when the gear teeth of the incomplete gear 55 and the gear teeth of the transverse rack 54 are meshed, the transverse rack 54 performs transverse motion, so that the two arranging plates 51 are driven to be close to each other, the paper boards on the bearing seat 45 are beaten, and the technical effect of arranging the paper boards is achieved. When the incomplete gear 55 is not meshed with the gear teeth of the transverse rack 54, the buffer spring 53 is in a stretching state, and the buffer spring 53 drives the two arranging plates 51 to be away from each other through elastic deformation of the buffer spring 53, so that the transverse rack 54 is driven to reset.

Referring to fig. 11, in another embodiment, the collation drive assembly may also be designed as follows: the collation drive assembly includes a half gear (and is shown), a rack frame 59, a link 58 and a guide bar 52. The half gear is sleeved on the roller shaft 50, the rack frame 59 is connected to the side frame in a sliding mode, and teeth are inlaid in the upper side and the lower side of the inner cavity of the rack frame 59, extend transversely and can be meshed with the half gear. The guide rod 52 is fixedly connected to the outer side of the arranging plate 51 and penetrates through a guide hole formed in the side frame, the guide rod 52 extends longitudinally and can move longitudinally relative to the side frame, a connecting rod 58 is further arranged between the side frame and the arranging plate 51, one end of the connecting rod 58 is hinged to the transverse rack 54, and the other end of the connecting rod 58 is hinged to the arranging plate 51.

When the roller shaft 50 used for driving the fifth conveying belt rotates, the roller shaft 50 rotates to drive the half gear to rotate, the rack frame 59 horizontally reciprocates when the half gear teeth are meshed with the gear teeth in the rack frame 59, and the rack frame 59 moves to drive the two arranging plates 51 to be close to or far away from each other so as to continuously flap the paper boards on the bearing seat 45.

The arrangement drive assembly power in this embodiment is taken from fifth transport mechanism's roller, need not to add the power supply, when reducing equipment dead weight, can also reduce the manufacturing cost of equipment. In addition, the arrangement driving assembly is compact in overall structure and convenient to mount and arrange.

Referring again to fig. 12, a push plate 56 is further connected between the two opposite lateral racks 54 or rack frames 59, and the push plate 56 and the stopper plate 57 are spaced apart in the lateral direction. Therefore, when the transverse rack 54 or the rack frame 59 moves, the pushing plate 56 can be driven to horizontally reciprocate along the transverse direction, and the pushing plate 56 pushes the paper boards on the bearing seat 45 in the movement, so that the paper boards are more orderly arranged on the bearing plate. It should be noted that the distance between the end of the travel of the pushing plate 56 and the stop plate 57 should be approximately equal to the lateral width of the cardboard sheet, so that the pushing plate 56 can effectively act on the cardboard sheet on the carrying seat 45.

The use method of the paperboard stacking device in the embodiment is as follows:

s1, adjusting the longitudinal position of the trolley 22 to align the fourth conveyor belt 231 and the third conveyor belt corresponding to the turnover mechanism 24, and moving the stack of boards onto the fourth conveyor belt 231 after the stack of boards is separated from the third conveyor belt;

s2, turning the cardboard bundle on the fourth conveyor belt 231 by 180 ° by the turning mechanism 24;

specifically, after the cardboard bundle moves onto the fourth conveyor belt 231, the limiting plate 244 limits the cardboard bundle, the lifting plate 246 is driven to move downwards by the lifting driving device, and the lifting plate 246 moves to drive the pressing plate 247 to move downwards until the cardboard is squeezed between the supporting plate 243 and the pressing plate 247. The turning shaft 242 is driven to rotate by the turning motor 241, and when the turning shaft 242 rotates, the supporting plate 243 and the pressing plate 247 are driven to rotate along the axis of the turning shaft 242, and the paper sheets are clamped between the supporting plate 243 and the pressing plate 247 and then rotate along with the rotation. After the paper board rotates 180 degrees, the paper board is changed from a front side to a back side, the lifting plate 246 is driven to reset through the lifting driving device, and the paper board moves downwards along with the lifting plate 246 until the paper board falls onto the fourth conveyor belt 231 again;

s3, adjusting the longitudinal position of the cart 22 while proceeding with the step S2 to align another fourth conveyor belt 231 with the third conveyor belt, and moving a stack of the sheets onto the fourth conveyor belt 231 after being separated from the third conveyor belt and onto the fifth conveyor belt after being separated from the fourth conveyor belt 231;

s4, after S3 is completed, aligning the fourth conveyor belt 231 and the third conveyor belt corresponding to the turnover mechanism 24, and moving the sheet bundle with the upside down to the fifth conveyor belt after separating from the fourth conveyor belt 231;

s5, moving the paperboard stacks to the bearing seat 45 after being separated from the fifth conveyor belt, and adjusting the height position of the bearing seat 45 to enable the paperboard stacks to be continuously stacked in the height direction;

specifically, after the paper boards with the right side facing upwards move onto the bearing seat 45, the height position of the bearing seat 45 is adjusted through the lifting driving assembly, so that the paper boards on the uppermost layer of the bearing seat 45 are approximately flush with the height of the fifth conveyor belt, and then the paper boards with the right side facing upwards move onto the paper boards with the right side facing upwards, so that the paper boards are stacked in a mode of aligning the paper boards with one pile and stacking the paper boards with the other pile; when the paper boards are stacked, the two arranging plates 51 are close to or far away from each other along the longitudinal direction so as to continuously flap the paper boards on the bearing seat 45, thereby achieving the purpose of arranging the paper boards.

In this embodiment, can pile up the cardboard pile with the form of positive pile and reverse pile through cardboard pile device, prevent to lead to the cardboard to take place to warp the deformation because of depositing for a long time, guarantee the quality of cardboard.

It should be noted that all the transverse directions and the longitudinal directions mentioned in the present application are referred to as the conveying direction of the first conveying mechanism, i.e., the direction parallel to the conveying direction of the first conveying mechanism is the transverse direction, and the horizontal direction perpendicular to the transverse direction is the longitudinal direction.

While the invention has been described with reference to specific embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. A paperboard processing line, comprising:

the paperboard cutting device is used for cutting the long-strip-shaped paperboard into blocks and stacking the blocks into a plurality of piles; the paperboard cutting device comprises a first conveying mechanism, a cutting mechanism and a second conveying mechanism; the cutting mechanism comprises a bracket and a cutting and pushing unit, the bracket is used for bearing the paper board with the preset length separated from the first conveying mechanism, the cutting and pushing unit is used for carrying out primary cutting on the paper board on the bracket along the longitudinal direction to obtain the paper board with the preset length, and carrying out secondary cutting along the longitudinal direction to obtain a plurality of paper boards with preset sizes; the second conveying mechanism is used for bearing the paper boards which are separated from the support and stacking the paper boards into a pile in the height direction;

2. A paperboard processing line according to claim 1, wherein the support comprises a lower support and an upper support, the lower support and the upper support are in a frame structure formed by connecting two transverse plates and a plurality of longitudinal plates, the two transverse plates extend along the transverse direction and are distributed at intervals along the longitudinal direction, the longitudinal plates extend along the longitudinal direction, two ends of each longitudinal plate are respectively and fixedly arranged on the two transverse plates, and the upper support is connected with the support driving assembly and can be driven by the support driving assembly to perform lifting motion relative to the lower support, so that the upper support can be coplanar with the working surface of the first conveying mechanism when moving to the stroke end; the support driving assembly comprises a support driving motor, a plurality of driving shafts and a connecting block, the support driving motor is installed on the lower support, the axes of the driving shafts extend along the transverse direction and are distributed at intervals in the longitudinal direction, and the driving shafts are rotatably connected to a lower longitudinal plate of the lower support; the lower part of the connecting block is sleeved on the driving shaft, and the upper part of the connecting block is pivoted on an upper longitudinal plate of the upper bracket.

3. A board processing line according to claim 1, wherein the cutting and pushing unit comprises a traveling frame, a cutter wheel and a pushing member, the traveling frame is driven by the traveling driving mechanism to move horizontally along the longitudinal direction, the cutter wheel and the pushing member are both located in a gap between the bracket and the first conveying mechanism, the cutter wheel can move up and down relative to the traveling frame for cutting the boards, and the pushing member is used for pushing the cut boards to the second conveying mechanism.

4. A board processing line according to claim 1, wherein the traveling frame is of a frame-like construction and is slidably mounted on a first rail extending in the longitudinal direction, the travel drive mechanism includes a travel drive motor, a drive gear and a longitudinal rack, the travel drive motor is fixedly mounted on the traveling frame, the drive gear is mounted on a rotating shaft of the travel drive motor, and the longitudinal rack is fixedly mounted on the first rail, is engaged with the drive gear and extends in the longitudinal direction of the first rail.

5. A paperboard processing line according to claim 4, wherein the traveling frame comprises two side frames spaced apart from each other in the longitudinal direction, a knife wheel frame is rotatably connected between the two side frames, the knife wheel is rotatably connected to the knife wheel frame and is driven to rotate by a knife wheel driving motor mounted on the knife wheel frame, an adjusting seat is fixedly mounted at the bottom of the knife wheel frame, an adjusting member is connected between the adjusting seat and the traveling frame, the adjusting member comprises a cylinder section and a piston section, the cylinder section is hinged to the traveling frame, one end of the piston section is slidably connected to the inside of the cylinder section, and the other end of the piston section is hinged to the adjusting seat.

6. A board processing line according to claim 1, wherein the trolley is slidably mounted on two second rails, the second rails extending in a longitudinal direction and being spaced apart in a transverse direction, and a trolley drive mechanism is mounted to the bottom of the trolley and driven by the trolley drive mechanism to move along the second rails; the fourth conveying mechanism comprises a plurality of fourth conveying belts, and the fourth conveying belts extend along the transverse direction and are distributed at intervals in the longitudinal direction.

7. A paperboard processing line according to claim 6, wherein the turnover mechanism comprises two mounting seats, a turnover shaft, a plurality of supporting plates and a plurality of pressing plates, wherein the two mounting seats are fixedly mounted on the trolley and are respectively positioned at two longitudinal sides of one of the fourth conveying mechanisms, the turnover shaft is rotatably connected to the two mounting seats, the axis of the turnover shaft extends along the longitudinal direction and is positioned above the fourth conveying belt and can be driven to rotate by a turnover motor; the supporting plates extend along the transverse direction and are distributed at intervals in the axial direction of the turnover shaft, and the upper surfaces of the supporting plates are coplanar with the upper surface of the fourth conveyor belt; a limiting plate is fixedly arranged on one side, close to the third conveying mechanism, of the supporting plate, and the supporting plate and the limiting plate are located between every two adjacent fourth conveying belts; the pressing plate is located the limiting plate and is close to third transport mechanism one side, and the pressing plate is along horizontal extension, and the relative layer board of pressing plate ability carries out elevating movement.

8. A paperboard processing line according to claim 7, wherein the pressing plates are fixedly connected with each other through a fixing plate, and a lifting plate is fixedly mounted on one side of the fixing plate, which is far away from the third conveying mechanism; the limiting plate is fixedly provided with an ear plate on one side, deviating from the third conveying mechanism, of the limiting plate, the ear plate is located below the lifting plate and sleeved on the turnover shaft, a jacking driving mechanism is fixedly arranged at the top of one of the ear plates, the fixed end of the jacking driving mechanism is installed on the ear plate, and the movable end of the jacking driving mechanism is installed on the lifting plate and used for driving the lifting plate to perform lifting movement.

9. A paperboard processing line according to claim 1, wherein the stacking mechanism comprises a carrier, a carrier base and a lifting drive assembly, the carrier comprises two upright rods vertically arranged, the two upright rods are longitudinally spaced and respectively located at two sides of the fifth conveying mechanism, the carrier base is slidably mounted between the two upright rods up and down, and the lifting drive assembly is in driving connection with the carrier base and is used for driving the carrier base to perform lifting motion along the height direction of the upright rods; the lifting driving assembly comprises a lifting driving motor, a winding roller, a guide wheel and a steel wire rope, the lifting driving motor is located below the fifth conveying belt, the lifting driving motor is connected with a winding shaft in a driving mode, the axis of the winding shaft extends longitudinally, the winding roller is sleeved on the winding shaft, one end of the steel wire rope is fixed on the winding roller, and the other end of the steel wire rope is fixed on the bearing seat after bypassing the guide wheel.

10. A board processing line according to claim 1, characterized in that the board stacking apparatus further comprises a collating mechanism at the discharge end of the fifth conveying mechanism for collating the boards on the carrying board, which comprises two collating boards that can be moved towards and away from each other.