CN210309235U

CN210309235U - Box nailing machine

Info

Publication number: CN210309235U
Application number: CN201920924773.7U
Authority: CN
Inventors: 朱立欣; 杜立高; 李建; 张凤跃; 李�柱
Original assignee: Hebei Herui Machinery Equipment Co ltd
Current assignee: Hebei Herui Machinery Equipment Co ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-04-14
Anticipated expiration: 2029-06-19

Abstract

The utility model discloses a box nailing machine, its characterized in that: the paper feeding roller set and the line pressing roller set are driven by a driving mechanism to operate, the first transmission unit extends from the paper feeding roller set to the line pressing roller set through the deviation preventing mechanism, the second transmission unit extends from the line pressing roller set to the binding mechanism through the line pressing roller set along the moving direction of a paper board through the turnover mechanism, a third transmission unit is constructed between the paper feeding roller set and the line pressing roller set, the paper feeding roller set and the line pressing roller set are in transmission connection through the third transmission unit, and the driving mechanism is in transmission connection with the first transmission unit, the second transmission unit and the third transmission unit respectively. The utility model has the characteristics of be in the temper before making the cardboard get into line ball group, and avoid the cardboard skew or stick up to each process synchronism is high, is applicable to the cardboard and binds into the field of case.

Description

Box nailing machine

Technical Field

The utility model belongs to the technical field of the carton production manufacturing, specifically speaking relates to a carton stapler.

Background

The existing carton stapler comprises a paper feeding roller set, a line pressing roller set, a folding mechanism and a binding mechanism, wherein a paperboard is conveyed to the line pressing roller set by the paper feeding roller set, the line pressing roller set is used for pressing the paperboard, and then the pressed paperboard is folded and bound along the rolled folding line to finally form a carton. However, before entering the line pressing roller set, the paper board often deflects, so that the line pressing of the paper board deviates, and an unqualified product is produced; its one end that is close to line ball roller set can stick up sometimes before the cardboard gets into line ball roller set for the cardboard can't get into line ball roller set and carry out the line ball, and a plurality of cardboards continue to stop like this before line ball roller set, cause the cardboard to pile up, influence production efficiency. And the cardboard needs a plurality of driving motor drives by the process of paper feed roller group, line pressing roller group, turnover mechanism and binding mechanism, so not only the structure is complicated to maintain inconveniently, and a plurality of cardboards are continuous feed until the process of becoming the case moreover, and each process is all gone on alone, and the synchronism is poor, and a certain process breaks down, or a certain process allotment is improper, leads to the cardboard to supply inadequately or the cardboard is piled up in a certain process department.

SUMMERY OF THE UTILITY MODEL

The utility model provides a be in the horizontality when making the cardboard get into before the line ball group, and avoid the cardboard skew or stick up to the box press that each process synchronism is high.

In order to achieve the above object, the utility model adopts the following technical scheme:

the paper feeding roller set and the line pressing roller set are driven by a driving mechanism arranged on the frame to operate, the first transmission unit extends from the paper feeding roller set to the line pressing roller set through the deviation preventing mechanism along the motion direction of the paper board, the second transmission unit extends from the line pressing roller set to the binding mechanism through the line pressing roller set and the line pressing roller set through the third transmission unit, the driving mechanism is respectively in transmission connection with the first transmission unit, the second transmission unit and the third transmission unit, the paper boards are driven by the driving mechanism to sequentially pass through the paper feeding roller set, the deviation preventing mechanism, the line pressing roller set, the turnover mechanism and the binding mechanism so as to form a paper board conveying, line pressing, turnover and binding box.

Furthermore, the anti-deflection mechanism comprises an assembly part fixedly connected with the rack, a rolling mechanism with adjustable height is connected to the lower end of the assembly part, the rolling mechanism extends from one end of the paper feeding mechanism to the line pressing roller group along the movement direction of the paper board, a bearing plate located below the rolling mechanism is horizontally installed on the rack, a gap for the paper feeding plate to pass through is formed between the bearing plate and the rolling mechanism, and the first transmission unit is arranged below the rolling mechanism and penetrates through the bearing plate.

Furthermore, first drive unit includes coaxial arrangement in the epaxial first drive wheel of lower paper feed running roller pivot of paper feed running roller group, in just be close to line ball running roller group front end department in the frame and rotate and be connected with first bull stick, in coaxial arrangement has the second drive wheel on the first bull stick, first drive wheel is connected with the transmission of second drive wheel.

Furthermore, the line pressing roller group comprises a pre-pressing roller group and an indentation forming roller group which are sequentially arranged along the movement direction of the paper board, the pre-pressing roller group and the indentation forming roller group are connected through a driving mechanism and run synchronously, the pre-pressing roller group comprises a first upper rotating shaft and a first lower rotating shaft which are arranged up and down and are parallel to each other, the first upper rotating shaft and the first lower rotating shaft are respectively and rotatably connected with the frame, a plurality of interference pressing roller wheels are coaxially installed on the first upper rotating shaft at intervals, first pressing rollers with two ends extending to the end parts of the two ends of the first lower rotating shaft along the axial direction of the first lower rotating shaft are coaxially installed on the first lower rotating shaft, a gap for a paper supply board to pass through is formed between the upper surface of each first pressing roller and the interference pressing roller wheels, and the pre-pressing roller group is provided with a gap for pushing and rolling the paper board along with the, so as to form pre-pressing marks on the paperboard, wherein the number of the pre-pressing marks is the same as that of the pre-pressing line rollers.

Furthermore, the pre-pressing line roller comprises a pre-pressing protrusion which is used for being matched with the first pressing roller to roll the paperboard to form a pre-pressing mark, the pre-pressing protrusion is annular and is formed on the circumferential surface of the pre-pressing line roller, the axis of the pre-pressing protrusion coincides with the axis of the pre-pressing line roller, the distance between the two axial ends of the pre-pressing protrusion and the two corresponding ends of the pre-pressing line roller is equal, the distance between one axial end of the pre-pressing protrusion and the corresponding end of the pre-pressing line roller is d1, the thickness of the pre-pressing protrusion is d2, and d1 is 0.3-0.8 times of d 2.

Furthermore, the indentation forming roller set comprises a second upper rotating shaft and a second lower rotating shaft which are vertically arranged and parallel to each other, the second upper rotating shaft and the second lower rotating shaft are respectively connected with the rack in a rotating manner, a plurality of indentation forming rollers are coaxially arranged on the second upper rotating shaft at intervals, a second press roller is coaxially arranged on the second lower rotating shaft, two ends of the second press roller extend to the end parts of two ends of the second lower rotating shaft along the axial direction of the second lower rotating shaft, gaps for paper feeding plates to pass through are formed between the upper surface of the second press roller and the plurality of indentation forming rollers, and the indentation forming roller set has the function of pushing and rolling the paper plates along with the rotation of the second upper rotating shaft and the second lower rotating shaft so as to form pre-indentation rolling on the paper plates to form forming marks.

Further, the indentation forming roller comprises an indentation bulge which is used for being matched with the second pressing roller to pre-indent the rolled paperboard to form a forming indentation, the indentation bulge is annular and is formed on the circumferential surface of the indentation forming roller, the axis of the indentation bulge coincides with the axis of the indentation forming roller, the distance between the two axial ends of the indentation bulge and the two corresponding ends of the indentation forming roller is equal, the axial cross section of the indentation bulge is semicircular, the distance between the indentation forming roller and the indentation bulge is d3, the diameter of the indentation bulge is d4, and d4 is 1.5-2 times of d 3.

Furthermore, the second transmission unit comprises a third transmission wheel coaxially mounted on a lower line pressing roller rotating shaft of the line pressing roller group close to the turnover mechanism, a second rotating rod is rotatably connected to one end, far away from the paper feeding roller group, of the rack, a fourth transmission wheel is coaxially mounted on the second rotating rod, and the third transmission wheel is in transmission connection with the fourth transmission wheel.

Furthermore, the third transmission unit comprises a fifth transmission wheel coaxially arranged on a lower paper feeding roller rotating shaft of the paper feeding roller set and a sixth transmission wheel coaxially arranged on a lower line pressing roller rotating shaft of the line pressing roller set, close to the turnover mechanism, wherein the fifth transmission wheel is in transmission connection with the sixth transmission wheel.

Furthermore, a material limiting mechanism which is arranged on the rack and used for laminating paper boards and supplying the paper boards to the paper feeding roller set one by one is arranged at the paper feeding end of the paper feeding roller set.

The utility model discloses owing to adopted foretell structure, it compares with prior art, and the technical progress who gains lies in: the first transmission unit, the paper feeding roller set, the second transmission unit, the line pressing roller set and the third transmission unit are driven by the driving mechanism to enable the paper boards to sequentially pass through the paper feeding roller set, the deviation preventing mechanism, the line pressing roller set, the folding mechanism and the binding mechanism, and the paper boards are conveyed, pressed, folded and bound into boxes; therefore, the paper boards can pass through the carton stapler only by one driving mechanism, so that all processes of the carton stapler form a complete whole, all processes are synchronously performed, the paper boards are orderly bound into boxes, the production efficiency is improved, and the phenomena of poor synchronism, complex structure and inconvenient maintenance caused by independent driving of all processes are overcome; the deviation preventing mechanism is arranged between the paper feeding roller set and the line pressing roller set and is used for keeping the movement direction of the paper board from the paper feeding roller set and conveying the paper board to the line pressing roller set through the first transmission unit to prevent the paper board from deviating or one end of the paper board close to the line pressing roller set from tilting, and then the line pressing roller set presses the paper board without deviation or tilting; therefore, the deviation preventing mechanism is in a flat state before the paperboard enters the line pressing roller set, so that the deviation or the upwarp of the paperboard is avoided, the line pressing deviation or the paperboard is accumulated on the front section of the line pressing roller set, and the production efficiency of the carton stapler is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

fig. 3 is a side view of an anti-tilt mechanism according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an anti-tilting mechanism according to an embodiment of the present invention;

fig. 5 is a schematic view of a partial structure of an anti-tilting mechanism according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a wire pressing roller set according to an embodiment of the present invention;

fig. 7 is an axial sectional view of the pre-pressing wire roller according to the embodiment of the present invention;

fig. 8 is an axial sectional view of the indentation forming roller according to the embodiment of the present invention;

FIG. 9 is a radial cross-sectional view of a first press roll or a second press roll according to an embodiment of the invention;

fig. 10 is a schematic structural view of transmission connection between the rotating shafts of the crimping roller set according to the embodiment of the present invention;

FIG. 11 is a schematic structural view of the transmission connection between the shafts of the paper feeding roller set according to the embodiment of the present invention;

FIG. 12 is a schematic structural view of a material limiting mechanism according to an embodiment of the present invention;

FIG. 13 is a schematic view of the connection structure of the first transmission unit, the second transmission unit, the third transmission unit, the paper feeding roller set and the line pressing roller set;

FIG. 14 is a schematic view of the structure of FIG. 13 from another perspective;

fig. 15 is a schematic structural view of a height adjusting mechanism according to an embodiment of the present invention;

fig. 16 is a schematic structural view of a folding mechanism according to an embodiment of the present invention.

Labeling components: 1-a frame, 101-a notch, 2-a bearing rod, 201-a bearing wheel, 3-a material limiting mechanism, 301-a lower paper feeding roller rotating shaft, 302-an upper paper feeding roller rotating shaft, 303-a lower paper feeding rubber roller, 304-an upper paper feeding rubber roller, 305-a first driving wheel, 306-a first driving belt, 307-a first rotating rod, 308-a second driving wheel, 309-a fifth driving wheel, 310-a third driving belt, 311-a beam, 312-a first strip-shaped hole, 313-a mounting seat, 314-a width limiting plate, 315-a second strip-shaped hole, 316-a height limiting plate, 317-a third strip-shaped hole, 318-a fastening bolt, 319-a fixing screw rod, 320-a fastening nut, a 4-an anti-deflection mechanism, 401-L section steel, 402-channel steel, 403-rolling mechanism, 4031-mounting rod, 4032-roller, 404-lifting component, 4041-fixed block, 4042-adjusting screw, 4043-lower locking nut, 4044-upper locking nut, 405-bearing plate, 5-pressing roller set, 501-first lower rotating shaft, 502-first pressing roller, 503-first upper rotating shaft, 504-pre-pressing roller, 5041-pre-pressing bulge, 505-second lower rotating shaft, 506-second pressing roller, 507-second upper rotating shaft, 508-indentation forming roller, 5081-indentation bulge, 509-third lower rotating shaft, 510-lower rubber roller, 511-third upper rotating shaft, 512-upper rubber roller, 513-seventh driving wheel, 514-sixth driving wheel, 515-third driving wheel, 516-second driving belt, 517-a second rotating rod, 518-a fourth driving wheel, 6-a folding mechanism, 601-a servo motor, 602-a rotating disc, 603-a folding rod, 604-a pressing wheel, 605-an angle spring, 7-a binding mechanism, 8-a height adjusting mechanism, 801-a sliding block, 802-a through hole, 803-a U-shaped mounting plate, 804-a lifting bolt, 805-a first locking nut, 806-a second locking nut, 807-a third locking nut, 9-a fourth driving unit, 901-a first paper feeding driving wheel, 902-a second paper feeding driving wheel, 903-a third paper feeding driving wheel, 904-a paper feeding driving belt, 10-a fifth driving unit, 1001-a driving motor, 1002-a driving wheel, 1003-a first line pressing driving wheel, 1004-a second line pressing driving wheel, 1005-third line pressing driving wheel, 1006-fourth line pressing driving wheel and 1007-fifth line pressing driving wheel.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the invention.

The utility model discloses a carton stapler, as shown in figure 1-2, comprising a frame 1, wherein a paper feeding roller set, an anti-deflection mechanism 4, a line pressing roller set 5, a turnover mechanism 6 and a binding mechanism 7 are sequentially arranged on the frame 1 along the moving direction of a paper board, wherein the paper feeding roller set is provided with a first transmission unit, and the first transmission unit extends to the line pressing roller set 5 from the paper feeding roller set along the moving direction of the paper board through the anti-deflection mechanism 4; the line pressing roller set 5 is provided with a second transmission unit, and the second transmission unit extends out of the binding mechanism 7 from the line pressing roller set 5 along the movement direction of the paper board through the turnover mechanism 6; a third transmission unit is constructed between the paper feeding roller set and the line pressing roller set 5, and the paper feeding roller set is in transmission connection with the line pressing roller set 5 through the third transmission unit; the driving mechanism is respectively in transmission connection with the first transmission unit, the second transmission unit and the third transmission unit, and under the driving of the driving mechanism, the paper boards sequentially pass through the paper feeding roller set, the deviation preventing mechanism 4, the line pressing roller set 5, the turnover mechanism 6 and the binding mechanism 7 so as to realize the conveying, line pressing, turnover and binding of the paper boards into boxes. In conclusion, the utility model discloses only need a actuating mechanism can realize that the cardboard passes through the box press, make each process of box press form a complete whole, and each process goes on in step, and the cardboard finishes binding into the case in order in proper order, and overcome each process and drive alone and relatively poor and structure complicated, the inconvenient phenomenon of maintenance of synchronism; the deviation preventing mechanism 4 is arranged between the paper feeding roller set and the line pressing roller set 5, the deviation preventing mechanism 4 is used for keeping the movement direction of the paper board from the paper feeding roller set, the paper board is conveyed to the line pressing roller set 5 through the first transmission unit to move, the paper board is prevented from deviating or one end of the paper board close to the line pressing roller set 5 is prevented from tilting, and then the line pressing roller set 5 presses the paper board without deviation or tilting; the deviation preventing mechanism 4 is in a flat state before the paperboard enters the line pressing roller set 5 so as to avoid the deviation or upwarp of the paperboard, lead the line pressing deviation or the paperboard to be accumulated on the front section of the line pressing roller set 5 and improve the production efficiency of the box nailing machine.

The utility model discloses the preferred structure of paper feed roller group does, as shown in fig. 1, fig. 13, paper feed roller group includes that the tilting installs last paper feed roller pivot 302 and lower paper feed roller pivot 301 in frame 1, at last paper feed roller pivot 302 with lower paper feed roller pivot 301 respectively corresponding install a plurality of last paper feed rubber running rollers 304 and a plurality of lower paper feed rubber running rollers 303. In order to improve the conveying stability of the paper boards, the paper feeding roller groups are multiple groups, and the multiple groups of paper feeding roller groups are arranged side by side. In this embodiment, two sets of paper feeding roller sets are selected, and a preferred connection manner between two upper paper feeding roller rotating shafts 302 and two lower paper feeding roller rotating shafts 301 in the two sets of paper feeding roller sets is to use a fourth transmission unit 9, as shown in fig. 11, the specific structure of the fourth transmission unit 9 is that second paper feeding transmission wheels 902 are respectively installed on the two lower paper feeding roller rotating shafts 301, third paper feeding transmission wheels 903 are respectively installed on the two upper paper feeding roller rotating shafts 302, and a first paper feeding transmission wheel 901 is rotatably connected to the frame 1 below the second paper feeding transmission wheels 902, wherein the first paper feeding transmission wheel 901, the two second paper feeding transmission wheels 902, and the two third paper feeding transmission wheels 903 are in transmission connection through the paper feeding transmission belts 904, so that the upper paper feeding roller rotating shafts 302 and the corresponding lower paper feeding roller rotating shafts 301 rotate relatively to form the propulsion of the paper board.

In order to make the stacked paper boards be supplied to the paper feeding roller set one by one, the paper feeding end of the paper feeding roller set is provided with the material limiting mechanism 3 installed on the frame 1, as shown in fig. 2 and fig. 12, the material limiting mechanism 3 comprises a beam 311 fixedly installed on the frame 1, a plurality of first strip-shaped holes 312 are formed on the beam 311 at intervals along the length direction of the beam 311, the long sides of the first strip-shaped holes 312 extend along the length direction of the beam 311, a plurality of mounting seats 313 are installed on the beam 311 through corresponding first strip-shaped holes 312 by fastening bolts 318, the mounting seats 313 are arranged at intervals along the length direction of the beam 311, wherein, two mounting seats 313 at two ends of the beam 311 are respectively provided with a width limiting plate 314, the width limiting plates 314 are used for limiting the width of the paper boards, and the phenomenon that the paper boards are deflected when entering the paper feeding roller set due to overlarge widths of the two, and prevent that the width undersize of two width limiting plates 314 and lead to the cardboard card can't get into paper feed roller wheelset between two width limiting plates 314, it has the second bar hole 315 that extends along vertical direction to open on every width limiting plate 314, and the welding has fixing screw 319 on every mount pad 313, and fixing screw 319 corresponding with width limiting plate 314 passes second bar hole 315 and width limiting plate 314 passes through fastening nut 320 and fixing screw 319's screw-thread fit realization to be fixed on mount pad 313. The mounting seats 313 between the two width limiting plates 314 are respectively provided with a height limiting plate 316, the height limiting plates 316 are provided with third strip-shaped holes 317 extending along the vertical direction, and the corresponding fixing screws 319 penetrate through the third strip-shaped holes 317 and are fastened on the corresponding mounting seats 313 through fastening nuts 320. The height of each height limiting plate 316 can be adjusted according to the thickness of cardboard to operating personnel to the cardboard that is located the below in the range upon range of cardboard passes through, through adjusting the clearance between width limiting plate 314 and a plurality of height limiting plate 316, and then realizes that the cardboard of different thickness passes through, and ensures the smoothness nature that the cardboard passes through. In this embodiment, in order to facilitate the paper board to pass through the material limiting mechanism 3, as shown in fig. 1, a plurality of parallel bearing rods 2 are installed at the front end of the material limiting mechanism 3, and a plurality of bearing wheels 201 are rotatably installed on each bearing rod 2 at intervals. One bearing rod 2 is driven to rotate by a motor, and when the paper boards stacked on the bearing rods 2 and positioned at the lowest position move, the bearing wheels 201 on the other bearing rods 2 are driven to rotate, so that the paper boards are ensured to enter the paper feeding roller set one by one through the material limiting mechanism 3; the bearing rods 2 do not need power driving, when the paper boards are stacked on the bearing rods 2, the lowest paper board is pushed into the paper feeding roller set, the lowest paper board moves, the next lower paper board moves to the paper feeding roller set under the action of friction force of the lowest paper board, and after passing through the paper feeding roller set, the next lower paper board enters the paper feeding roller set, so that the paper boards are continuously supplied to the paper feeding roller set; the bearing wheels 201 can also be fixedly arranged on the corresponding bearing rods 2 and can rotate together with the bearing rods 2, the corresponding bearing wheels 201 are connected through belt transmission, the bearing rods 2 are driven to rotate through a motor, then the belt drives the lowest paper board in the paper boards stacked on the bearing rods 2 to enter the paper feeding roller set through the material limiting mechanism 3, the next lower paper board is limited by the material limiting mechanism 3 and cannot enter the paper feeding roller set, and after the lowest paper board is completely separated from the material limiting mechanism 3, the next lower paper board becomes the lowest paper board, so that the stacked paper boards sequentially enter the paper feeding roller set through the material limiting mechanism 3. The original suction pump design is replaced, and the suction pump is matched with the conveying belt to adsorb the paper board and convey the paper board to the line pressing roller set 5.

The utility model discloses the preferred embodiment of line ball roller set 5 does, as shown in fig. 6-9, line ball roller set 5 is including line ball roller set and indentation shaping roller set in advance, and line ball roller set and indentation shaping roller set are installed in proper order on the frame 1 of box press along the direction of motion of cardboard in advance, and line ball roller set and indentation shaping roller set pass through the actuating mechanism drive and synchronous operation in advance. The pre-pressing roller set comprises a first upper rotating shaft 503 and a first lower rotating shaft 501 which are arranged from top to bottom, the first upper rotating shaft 503 and the first lower rotating shaft 501 are parallel to each other, and the first upper rotating shaft 503 and the first lower rotating shaft 501 are respectively connected with the rack 1 in a rotating manner. A plurality of pre-pressing line rollers 504 are coaxially installed on the first upper rotating shaft 503 at intervals, the position of each pre-pressing line roller 504 is the position of a line required by the corresponding paperboard, the number of the pre-pressing line rollers 504 is the number of the lines required by the corresponding paperboard, a first pressing roller 502 is coaxially installed on the first lower rotating shaft 501, two ends of the first pressing roller 502 respectively extend to the end parts of two ends of the first lower rotating shaft 501 along the axial direction of the first lower rotating shaft 501, a gap through which a paper supply plate passes is formed between the upper surface of the first pressing roller 502 and the pre-pressing line rollers 504, and the first pressing roller 502 and the pre-pressing line rollers 504 push and roll the paperboard along with the rotation of the first upper rotating shaft 503 and the first lower rotating shaft 501, so that pre-pressing marks with the same number as the pre-pressing line rollers 504 are formed. The paper board forms pre-indentation after passing through the pre-pressing line roller set, the paper board forms forming mark after passing through the indentation forming roller set, the flexibility and toughness of the paper board at the pre-indentation position are improved while the pre-indentation is formed by rolling the paper board by the pre-pressing line roller set, so that the pre-indentation of the paper board can not be broken under the rolling of the indentation forming roller set, because the driving mechanism drives the pre-pressing line roller set and the indentation forming roller set to synchronously operate, when one part of the paperboard is pre-pressed by the pre-pressing line roller set and the other part of the paperboard is pressed by the indentation forming roller set to press the pressed pre-indentation, the two parts of the paper board have the same moving speed, the condition that the paper board is stretched or extruded between the two parts due to asynchronous operation of the pre-pressing line roller group and the creasing forming roller group is avoided, the indentation forming roller set and the line pressing roller set synchronously run, so that pre-pressing marks formed by rolling the pre-pressing line roller set are more accurate in rolling, and the pressed lines are straight; the number and the interval of the pre-pressing line rollers 504 are adjusted according to the number and the interval of the pressing lines by an operator, the traditional form of upper and lower rollers is replaced, the alignment adjustment between the upper and lower rollers is replaced, the interval of the pre-pressing line rollers 504 is only required to be adjusted, and the accuracy is improved while the calibration steps are reduced. The pre-pressing line roller 504 of this embodiment preferably has a structure that the pre-pressing line roller 504 includes a pre-pressing protrusion 5041 for forming a pre-pressing mark by rolling the paperboard in cooperation with the first pressing roller 502, the pre-pressing protrusion 5041 is annular and is formed on the circumferential surface of the pre-pressing line roller 504, and the axial two ends of the pre-pressing protrusion 5041, which coincide with the axis of the pre-pressing line roller 504, are equidistant from the two ends of the pre-pressing line roller 504 corresponding to each other. In order to reduce the damage of the edge of the prepressing bulge 5041 to the paperboard when the prepressing bulge 5041 rolls the paperboard, the edge of the bulge part of the prepressing bulge 5041 adopts circular arc transition, and the edge of the line prepressing roller 504 also adopts circular arc transition, so that the paperboard is pressed by the prepressing bulge 5041 and the first pressing roller 502, as the prepressing bulge 5041 is in contact with the surface of the paperboard, a prepressing mark is formed, and two sides of the prepressing mark are deformed and turned upwards, and the turned-up part is limited by the side surface of the prepressing bulge 5041 and the circumferential surface of the line prepressing roller 504, so as to avoid the two sides of the prepressing line from being turned up excessively to exceed the toughness bearing. The distance between one axial end of the prepressing bulge 5041 and the corresponding end of the prepressing line roller 504 is d1, the thickness of the prepressing bulge 5041 is d2, and d1 is 0.3-0.8 times of d2, by adopting the proportion range, the breakage rate of the paperboard after being rolled by the prepressing line roller set is the lowest, and the breakage rate is less than 8 per thousand. The preferred structure of the creasing-forming roller set of this embodiment is that the creasing-forming roller set comprises a second upper rotating shaft 507 and a second lower rotating shaft 505 which are arranged up and down and are respectively and rotatably connected with the frame 1, and the second upper rotating shaft 507 and the second lower rotating shaft 505 are parallel to each other. A plurality of creasing rollers 508 are coaxially mounted on the second upper rotating shaft 507 at intervals, each creasing roller 508 corresponds to each pre-creasing roller 504 in position one by one, a second pressing roller 506 is coaxially mounted on the second lower rotating shaft 505, two ends of the second pressing roller 506 extend to two end parts of the second lower rotating shaft 505 along the axial direction of the second lower rotating shaft 505, and a gap through which a paper feeding plate passes is formed between the upper surface of the second pressing roller 506 and the creasing rollers 508. The second pressing roller 506 and the creasing roller 508 push and roll the paper board along with the rotation of the second upper shaft 507 and the second lower shaft 505 to form pre-creasing and rolling on the paper board to form forming marks. An operator installs the indentation forming rollers 508 according to the number and the interval of the pre-pressing line rollers 504, the traditional arrangement form of the upper and lower rollers is replaced, the alignment adjustment between the upper and lower rollers is cancelled, only the relative positions of the indentation forming rollers 508 and the pre-pressing line rollers 504 are needed to be adjusted, the accuracy is improved while the calibration steps are reduced, and the pre-pressing marks of the paperboard can be formed by secondary rolling of the indentation forming rollers 508 and the second pressing rollers 506. The radius r1 of the first press roll 502, the radius r2 of the second press roll 506, the radius r3 of the pre-pressing line roller 504 and the radius r4 of the creasing forming roller 508 are equal, and the axial thicknesses of the pre-pressing line roller 504 and the creasing forming roller 508 are equal, so that the pre-pressing line roller set and the creasing forming roller set are driven by the driving mechanism to synchronously run more easily. The indentation forming roller 508 preferably has a structure in which the indentation forming roller 508 includes an indentation protrusion 5081 for cooperating with the second pressing roller 506 to pre-indent the rolled sheet to form a forming indentation, the indentation protrusion 5081 is ring-shaped and formed on a circumferential surface of the indentation forming roller 508, the indentation protrusion 5081 coincides with an axis of the indentation forming roller 508, an axial both ends of the indentation protrusion 5081 are spaced apart from both ends of the indentation forming roller 508, and an axial cross-section of the indentation protrusion 5081 is semicircular. The prepressing marks of the paperboard are rolled under the matching rolling of the indentation protrusions 5081 and the second compression roller 506, the top ends of the indentation protrusions 5081 are rolled at the middle positions of the prepressing marks, the axial section of the indentation protrusions 5081 is semicircular, the prepressing marks are rolled into a groove structure with a low middle part and two high sides, the flexibility and the toughness of the paperboard are improved due to the prepressing marks, the external force of the indentation protrusions 5081, borne by the prepressing marks in the forming process, is transmitted to the paperboard along the radial direction of the semicircular axial section of the indentation protrusions 5081, the external force of the paperboard, borne by the rolling force, is gradually reduced along the axial direction of the indentation protrusions 5081, the edges of the prepressing marks are surrounded by the areas with weak flexibility, and by adopting the structure, the stress of the edges of the prepressing marks is weak, the breakage rate of the paperboard in the forming process is low and is. The preferred size ratio of the creasing protrusion 5081 is such that the distance from the creasing forming roller 508 to the creasing protrusion 5081 is d3, the diameter of the creasing protrusion 5081 is d4, and d4 is 1.5-2 times of d3, with this ratio the breakage of the cardboard is less than 3 per thousand. In this embodiment, in order to lead out the paper sheet by the creasing forming roller set after the paper sheet is rolled to form a forming mark, and keep the paper sheet to be synchronous with the creasing forming roller set in the leading-out process, a paper sheet pushing roller set is arranged at the paper outlet end of the creasing forming roller set, the paper sheet pushing roller set comprises a third upper rotating shaft 511 and a third lower rotating shaft 509 which are vertically arranged and are parallel to each other, the third upper rotating shaft 511 and the third lower rotating shaft 509 are respectively and rotatably connected with the rack 1, a plurality of lower rubber rollers 510 and a plurality of upper rubber rollers 512 are respectively installed on the third upper rotating shaft 511 and the third lower rotating shaft 509 at intervals, and the upper rubber rollers 512 on the third upper rotating shaft 511 and the lower rubber rollers 510 of the third lower rotating.

The utility model discloses the preferred structure of actuating mechanism is driving motor 1001, install action wheel 1002 on driving motor 1001's the output shaft, fifth drive unit 10 is used for making line ball roller set and indentation shaping roller set synchro-driven in advance, the concrete structure of implementing of fifth drive unit 10 does, as shown in FIG. 6, shown in FIG. 10, at first pivot 501 down, first pivot 503 of going up, pivot 505 under the second, pivot 507 and third go up pivot 511 are located the first line ball drive wheel 1003 that the tip of frame 1 homonymy assembled respectively, second line ball drive wheel 1004, third line ball drive wheel 1005, fourth line ball drive wheel 1006 and fifth line ball drive wheel 1007, action wheel 1002, first line ball drive wheel 1003, second line ball drive wheel 1004, third line ball drive wheel 1005, fourth line ball drive wheel 1006 and fifth line ball drive wheel are connected through belt or chain drive, in order to constitute driving motor 1001 drive line ball roller set in advance, And the indentation forming roller set and the paperboard pushing roller set synchronously roll and push the paperboard. The sizes and the numbers of teeth of the first pressing line driving wheel 1003, the second pressing line driving wheel 1004, the third pressing line driving wheel 1005 and the fourth pressing line driving wheel 1006 are the same, and the selection standard of the fifth pressing line driving wheel 1007 is the same as the rotating speed of any one of the first pressing line driving wheel 1003, the second pressing line driving wheel 1004, the third pressing line driving wheel 1005 and the fourth pressing line driving wheel 1006 under the drive of a belt or a chain.

A driving motor 1001 drives a first line pressing driving wheel 1003, a second line pressing driving wheel 1004, a third line pressing driving wheel 1005, a fourth line pressing driving wheel 1006 and a fifth line pressing driving wheel 1007 to rotate through a driving wheel 1002, so that a first upper rotating shaft 503 and a first lower rotating shaft 501 rotate relatively, a line pre-pressing roller group performs rolling propulsion on a paperboard to form pre-pressing marks on the paperboard, a second upper rotating shaft 507 and a second lower rotating shaft 505 rotate relatively, an indentation forming roller group performs rolling propulsion on the paperboard to form forming marks on the paperboard, then, a third upper rotating shaft 511 rotates, an upper rubber roller 512 performs rolling on the paperboard to further drive a third lower rotating shaft 509 to rotate, and a lower rubber roller 510 rotates in a driven manner, so that the paperboard keeps the original movement direction while being led out of an indentation forming roller group, and further prevents the paperboard from shifting and causes line pressing shifting; the paper board forms pre-indentation after passing through the pre-pressing line roller set, the paper board forms forming mark after passing through the indentation forming roller set, the flexibility and toughness of the paper board at the pre-indentation position are improved while the pre-indentation is formed by rolling the paper board by the pre-pressing line roller set, so that the pre-indentation of the paper board can not be broken under the rolling of the indentation forming roller set, because the driving mechanism drives the pre-pressing line roller set and the indentation forming roller set to synchronously operate, when one part of the paperboard is pre-pressed by the pre-pressing line roller set and the other part of the paperboard is pressed by the indentation forming roller set to press the pressed pre-indentation, the two parts of the paper board have the same moving speed, the condition that the paper board is stretched or extruded between the two parts due to asynchronous operation of the pre-pressing line roller group and the creasing forming roller group is avoided, the indentation forming roller set and the line pressing roller set synchronously run, so that pre-pressing marks formed by rolling the pre-pressing line roller set are more accurate in rolling, and the pressed lines are straight; the operator can adjust each height adjusting mechanism 8 according to the breakage rate of cardboard line ball to when making line ball shaping rate, qualification rate high, the breakage rate falls to minimumly.

The preferred embodiment of the deviation preventing mechanism 4 of the present invention is, as shown in fig. 3 to 5, that the deviation preventing mechanism 4 is installed between the paper feeding roller set and the pressing roller set 5 of the box nailing machine, and includes an assembly member, a rolling mechanism 403, and a bearing plate 405. The assembly part is fixedly installed on the frame 1, the rolling mechanism 403 is installed at the lower end of the assembly part, the height of the rolling mechanism 403 is adjustable, the rolling mechanism 403 extends from one end of the paper feeding roller set to the line pressing roller set 5 along the paper board moving direction, a bearing plate 405 located below the rolling mechanism 403 is horizontally installed on the frame 1, a gap for the paper feeding plate to pass through is formed between the bearing plate 405 and the rolling mechanism 403, a first transmission unit is arranged below the rolling mechanism 403 and horizontally penetrates through the bearing plate 405, the transmission direction of the first transmission unit is consistent with the direction of the paper feeding roller set for transmitting the paper board to the line pressing roller set 5, and the rolling mechanism 403 is matched with the bearing plate 405 for preventing the paper board from shifting or tilting in the transmission process of the transmission mechanism. The rolling mechanisms 403 and the assembled assemblies of the deviation preventing mechanism 4 are at least two groups, and the groups of rolling mechanisms 4034 and the assembled assemblies are arranged from one side of the machine frame 1 to the other side of the machine frame 1 at intervals, so that the movement direction of the paper board is kept stable in the process of passing through the deviation preventing mechanism 4, and the deviation and/or the tilting amount of the paper board is reduced to the minimum. Anti-deviation mechanism 4 rolling mechanism 403 is preferably configured such that rolling mechanism 403 includes a mounting bar 4031, a plurality of rollers 4032, and a plurality of sets of lifting assemblies 404, wherein the sets of lifting assemblies 404 are spaced apart along a length of mounting bar 4031, and each set of lifting assemblies 404 is connected below the mounting assembly and is fixedly connected to an upper end of mounting bar 4031. The lifting component 404 of the anti-deviation mechanism 4 preferably has a structure that the lifting component 404 comprises a fixing block 4041 and an adjusting screw 4042, the lower end face of the fixing block 4041 is fixedly welded with the upper end face of the mounting bar 4031, the adjusting screw 4042 vertically penetrates through the assembly part from the upper part of the assembly part and extends into the fixing block 4041, the adjusting screw 4042 is respectively in threaded connection with the assembly part and the fixing block 4041, one side of the fixing block 4041 is provided with a notch 101 penetrating to the other side, and the end part of the adjusting screw 4042 extends into the notch 101 from the upper end of the fixing block 4041. An operator rotates the adjusting screw 4042 to enable the mounting bar 4031 to lift along with the fixing block 4041, so that the gap between the roller 4032 and the bearing plate 405 is changed, and the gap is adapted to the situation that paper boards with different thicknesses pass through the gap. A lower locking nut 4043 and an upper locking nut 4044 are screwed onto the adjusting screw 4042 between the fitting part and the fixing part, wherein the lower end face of the lower locking nut 4043 abuts against the upper end face of the fixing part, the upper end face of the upper locking nut 4044 abuts against the lower end face of the fitting part, and the lower locking nut 4043 and the upper locking nut 4044 are used to lock the distance between the fitting part and the mounting bar 4031. The mounting bar 4031 of the deviation preventing mechanism 4 horizontally extends along the transmission direction of the paper board, an assembly groove extending from one axial end of the mounting bar 4031 to the other axial end is formed at the lower end of the mounting bar 4031, a plurality of rollers 4032 arranged at intervals along the length direction of the assembly groove are assembled in the assembly groove, each roller 4032 is respectively and rotatably connected with the side walls of the two sides of the assembly groove, and the rolling direction of the roller 4032 is consistent with the moving direction of the paper board in the paper feeding roller set. The assembly part of the anti-deviation mechanism 4 preferably comprises a transverse channel steel 402 and an L-shaped steel 401 extending along the movement direction of the paper board, wherein the transverse channel steel 402 is fixedly welded with the frame 1, one end of the L-shaped steel 401 is fixed on the transverse channel steel 402, the other end of the L-shaped steel 401 extends to the paper feeding roller set along the reverse horizontal direction of the movement direction of the paper board, and the adjusting bolt is vertically connected to the L-shaped steel 401 in a threaded manner and extends into the fixing block 4041 through the L-shaped steel 401. The first transmission unit preferably has a structure that the first transmission unit comprises a first transmission wheel 305 coaxially mounted on a lower feeding roller rotating shaft 301 of the feeding roller set, a first rotating rod 307 is rotatably connected to the front end of the pressing roller set 5 on the frame 1, a second transmission wheel 308 is coaxially mounted on the first rotating rod 307, and the first transmission wheel 305 and the second transmission wheel 308 are in transmission connection through a first transmission belt 306. In order to improve the stability of paper board conveying and the synchronism with the paper feeding roller set, a plurality of groups of first driving wheels 305 and second driving wheels 308 are correspondingly arranged, a plurality of first driving wheels 305 and a plurality of second driving wheels 308 with the same number are respectively installed on the lower paper feeding roller rotating shaft 301 and the first rotating rod 307 at intervals, the lower paper feeding roller rotating shaft 301 rotates through the driving motor 1001, the first driving wheels 305 are matched with the second driving wheels 308 corresponding to the rotating of the lower paper feeding roller rotating shaft 301 to drive the first driving belts 306 to move, limiting blocks are installed on the first driving belts 306 at intervals, one ends of the paper boards abut against the limiting blocks and move towards the line pressing roller set 5 along with the first driving belts 306. The principle of operation of the anti-deflection mechanism 4 is as follows: the deviation preventing mechanism 4 is arranged between the paper feeding roller set and the line pressing roller set 5, the rolling mechanism 403 of the deviation preventing mechanism 4 is matched with the bearing plate 405 to be used for keeping the movement direction of the paper board from the paper feeding roller set, the first transmission unit is used for conveying the paper board to the line pressing roller set 5 to prevent the paper board from deviating or tilting at one end of the paper board close to the line pressing roller set 5, then the deviation preventing mechanism 4 conveys the paper board to the line pressing roller set 5, the line pressing roller set 5 presses the paper board without deviation or tilting, and the height of the rolling mechanism 403 is adjustable, so that the gap between the rolling mechanism 403 and the bearing plate 405 changes to adapt to the transmission of the paper boards with different thicknesses; therefore, the deviation preventing mechanism 4 is in a flat state when the paperboard enters the line pressing roller set 5, and avoids deviation or upwarping of the paperboard, so that the line pressing deviation or the paperboard is accumulated on the front section of the line pressing roller set 5, and the production efficiency of the box nailing machine is improved.

The utility model discloses a realize the line ball to different thickness cardboards by the transport of paper feed roller wheelset and line ball roller wheelset 5, and finely tune the operation according to the finished product condition of line ball, go up paper feed roller wheel pivot 302 at every, pivot 503 on the first, pivot 507 on the second and the third axial both ends of pivot 511 three are connected on frame 1 through altitude mixture control mechanism 8 respectively. Each height adjusting mechanism 8 preferably has a structure, as shown in fig. 15, in which a notch 101 is formed in one side of the frame 1 corresponding to each upper paper feeding roller rotating shaft 302, the first upper rotating shaft 503, the second upper rotating shaft 507 or the third upper rotating shaft 511, the notch 101 vertically extends downward from the upper end of the frame 1, a U-shaped mounting plate 803 is detachably mounted on the frame 1 at a position corresponding to the notch 101, two free ends of the U-shaped mounting plate 803 are respectively fixed to two sides of the notch 101 by bolts, a slider 801 is slidably connected to the frame 1 through the notch 101, two sides of the slider 801 are respectively slidably connected to two sides of the corresponding notch 101, the slider 801 is rotatably connected to one end of the corresponding upper paper feeding roller rotating shaft 302, the first upper rotating shaft 503, the second upper rotating shaft 507 or the third upper rotating shaft 511, a through hole 802 is formed in an upper end of the slider 801, and the through hole 802 is formed along the first upper rotating shaft 503, the second upper rotating shaft 507 or the third upper rotating shaft 511 axially penetrates through the sliding block 801, a lifting bolt 804 vertically penetrates through the upper end of the U-shaped mounting plate 803, and the lifting bolt 804 penetrates into the through hole 802. A first locking nut 805, a second locking nut 806 and a third locking nut 807 are in threaded connection with the lifting bolt 804, wherein the first locking nut 805 and the second locking nut 806 are respectively abutted against the upper end face and the lower end face of the transverse plate at the upper end of the U-shaped mounting plate 803, and the third locking nut 807 is abutted against the upper end face of the slider 801. An operator loosens the second locking nut 806 and the third locking nut 807 and then rotates the first locking nut 805 to lift the lifting bolt 804, so as to lift the sliding block 801, further realize the change of the distance between the upper paper feeding roller rotating shaft 302 and the lower paper feeding roller rotating shaft 301, the change of the distance between the first upper rotating shaft 503 and the first lower rotating shaft 501, the change of the distance between the second upper rotating shaft 507 and the second lower rotating shaft 505 or the change of the distance between the third upper rotating shaft 511 and the third lower rotating shaft 509, so as to realize the conveying of different thicknesses of the paper boards, the change of the pre-indentation or the depth of the forming mark of the paper boards and the adjustment of the gap between the upper rubber roller 512 and the lower rubber roller 510 of the paper board pushing roller group; the pressing line of the paperboards with different thicknesses can be realized.

The preferred structure of the folding mechanism 6 of the present invention is, as shown in fig. 1 and fig. 16, the folding mechanism 6 includes two servo motors 601 installed at both sides of the frame 1 at intervals along the moving direction of the paper board, the two servo motors 601 are located between the pressing roller set 5 and the binding mechanism 7, the output shaft of each servo motor 601 is respectively installed with a rotary table 602, the rotary table 602 is installed with a folding rod 603, and each servo motor 601 is connected with a photoelectric switch, when the paper board passes through the servo motor 601, the photoelectric switch is turned on, the servo motor 601 drives the folding rod 603 to turn over the paper board along the forming mark at the opposite side, after the paper board passes through the servo motor 601, the photoelectric switch is turned off, the folding rod 603 resets through an angle spring 605 sleeved on the output shaft of the servo motor 601 and fixed with the rotary table 602, in this embodiment, in order to reduce the friction of the folding rod 603 to the paper board, so as to avoid the, the end of the folding rod 603 contacting the paper board is rotatably connected with a pressing wheel 604. In the process that the paper board passes through the folding mechanism 6, the two folding rods 603 are driven by the corresponding servo motors 601 to fold the two sides of the paper board along the corresponding forming marks, and the folded paper board is bound into a box on the binding mechanism 7. The utility model discloses binding mechanism 7 is for the stapler that market is often sold and is used for the box press to use.

The utility model discloses the preferred embodiment of second drive unit, second drive unit include coaxial arrangement and rotate the epaxial third drive wheel 515 of 509 under the third, keep away from paper feed roller wheelset one end rotation in frame 1 and be connected with second bull stick 517, and coaxial arrangement has fourth drive wheel 518 on second bull stick 517, and third drive wheel 515 is connected through second drive belt 516 transmission with fourth drive wheel 518.

The preferred embodiment of the third transmission unit of the present invention is, as shown in fig. 13 and 14, the third transmission unit comprises a fifth transmission wheel 309 coaxially mounted on the lower feeding roller rotating shaft 301 of the feeding roller set near the line pressing roller set 5, and a sixth transmission wheel 514 coaxially mounted on the third lower rotating shaft 509, a seventh transmission wheel 513 is mounted on the first lower rotating shaft 501, and the fifth transmission wheel 309, the sixth transmission wheel 514 and the seventh transmission wheel 513 are in transmission connection through the third transmission belt 310.

The utility model discloses each drive wheel is the belt pulley or is the sprocket in each embodiment, each drive belt all with belt or chain.

The embodiment of the utility model provides a theory of operation as follows:

the first transmission unit, the paper feeding roller set, the second transmission unit, the line pressing roller set 5 and the third transmission unit enable the paper boards to sequentially pass through the paper feeding roller set, the anti-deflection mechanism 4, the line pressing roller set 5, the turnover mechanism 6 and the binding mechanism 7 through the driving of the driving mechanism, and convey, press lines, turn over and bind the paper boards into boxes; therefore, the paper boards can pass through the carton stapler only by one driving mechanism, so that all processes of the carton stapler form a complete whole, all processes are synchronously performed, the paper boards are orderly bound into boxes, the production efficiency is improved, and the phenomena of poor synchronism, complex structure and inconvenient maintenance caused by independent driving of all processes are overcome; prevent that skew mechanism 4 locates between paper feed roller group and line ball roller group 5, prevent that skew mechanism 4 is used for will by the cardboard that paper feed roller group came out keeps the direction of motion of cardboard, carries to line ball roller group 5 motion through first drive unit, avoids cardboard skew or the cardboard to be close to the one end perk of line ball roller group 5, later, line ball roller group 5 carries out the line ball to the cardboard that does not have skew or perk.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the protection of the claims of the present invention.

Claims

1. A carton stapler is characterized in that: the paper feeding roller set and the line pressing roller set are driven by a driving mechanism arranged on the frame to operate, the first transmission unit extends from the paper feeding roller set to the line pressing roller set through the deviation preventing mechanism along the motion direction of the paper board, the second transmission unit extends from the line pressing roller set to the binding mechanism through the line pressing roller set and the line pressing roller set through the third transmission unit, the driving mechanism is respectively in transmission connection with the first transmission unit, the second transmission unit and the third transmission unit, the paper boards are driven by the driving mechanism to sequentially pass through the paper feeding roller set, the deviation preventing mechanism, the line pressing roller set, the turnover mechanism and the binding mechanism so as to form a paper board conveying, line pressing, turnover and binding box.

2. A box stapler as claimed in claim 1, wherein: the anti-deflection mechanism comprises an assembly part fixedly connected with the rack, a rolling mechanism with adjustable height is connected to the lower end of the assembly part, the rolling mechanism extends to the line pressing roller group from one end of the paper feeding roller group along the movement direction of a paper board, a bearing plate located below the rolling mechanism is horizontally installed on the rack, a gap for the paper feeding plate to pass through is formed between the bearing plate and the rolling mechanism, and the first transmission unit is arranged below the rolling mechanism and penetrates through the bearing plate.

3. A box stapler as claimed in claim 2, wherein: the first transmission unit comprises a first transmission wheel coaxially arranged on a lower paper feeding roller wheel rotating shaft of a paper feeding roller wheel set, a first rotating rod is rotatably connected to the position, close to the front end of the line pressing roller wheel set, of the rack, a second transmission wheel is coaxially arranged on the first rotating rod, and the first transmission wheel is in transmission connection with the second transmission wheel.

4. A box stapler as claimed in claim 1, wherein: the line pressing roller group comprises a pre-line pressing roller group and an indentation forming roller group which are sequentially arranged along the movement direction of the paperboard, the pre-line pressing roller group and the indentation forming roller group are connected through the driving mechanism to synchronously run, the pre-crimping roller group comprises a first upper rotating shaft and a first lower rotating shaft which are arranged up and down and are parallel to each other, the first upper rotating shaft and the first lower rotating shaft are respectively and rotatably connected with the frame, a plurality of crimping rollers are coaxially arranged on the first upper rotating shaft at intervals, first crimping rollers are coaxially arranged on the first lower rotating shaft, two ends of each crimping roller extend to the end parts of two ends of the first lower rotating shaft along the axial direction of the first lower rotating shaft, a gap for the paper feeding plate to pass through is formed between the upper surface of the first pressing roller and the pressing roller, the pre-pressing line roller group is provided with pre-pressing marks which are formed on the paper board and have the same number with the pre-pressing line rollers by pushing and rolling the paper board along with the rotation of the first upper rotating shaft and the first lower rotating shaft.

5. A box stapler as claimed in claim 4, wherein: the pre-pressing line roller comprises a pre-pressing protrusion which is used for being matched with the first pressing roller to roll a paperboard to form a pre-pressing mark, the pre-pressing protrusion is annular and is formed on the circumferential surface of the pre-pressing line roller, the axis of the pre-pressing protrusion coincides with the axis of the pre-pressing line roller, the distance between the two axial ends of the pre-pressing protrusion and the two corresponding ends of the pre-pressing line roller is equal, the distance between one axial end of the pre-pressing protrusion and the corresponding end of the pre-pressing line roller is d1, the thickness of the pre-pressing protrusion is d2, and d1 is 0.3-0.8 times of d 2.

6. A box stapler as claimed in claim 4, wherein: the indentation shaping roller set is including setting up from top to bottom and pivot and second pivot under the second that is parallel to each other, pivot and second pivot rotate with the frame respectively under the second, in pivot is gone up to the second interval coaxial arrangement has a plurality of indentation shaping running rollers, in pivot is gone up to the second coaxial arrangement has the second compression roller that both ends extended to second pivot both ends tip department down along the axial of second pivot down, the upper surface of second compression roller with be formed with the clearance that the sheet feed board passes through between a plurality of indentation shaping running rollers, indentation shaping roller set has along pivot and second pivot rotate down and impel and the roll extrusion to the cardboard under the second to constitute the indentation roll extrusion in advance on the cardboard and form the shaping trace.

7. A box stapler as claimed in claim 6, wherein: the indentation forming roller comprises an indentation bulge which is used for being matched with the second pressing roller to pre-indent on a rolled paperboard to form a forming indentation, the indentation bulge is annular and is formed on the circumferential surface of the indentation forming roller, the indentation bulge coincides with the axis of the indentation forming roller, the distance between the two axial ends of the indentation bulge and the two corresponding ends of the indentation forming roller is equal, the axial cross section of the indentation bulge is semicircular, the distance between the indentation forming roller and the indentation bulge is d3, the diameter of the indentation bulge is d4, and d4 is 1.5-2 times of d 3.

8. A box stapler as claimed in claim 1, wherein: the second transmission unit comprises a third transmission wheel coaxially arranged on a lower line pressing roller rotating shaft of the line pressing roller group and close to the turnover mechanism, a second rotating rod is rotatably connected to one end, far away from the paper feeding roller group, of the rack, a fourth transmission wheel is coaxially arranged on the second rotating rod, and the third transmission wheel is in transmission connection with the fourth transmission wheel.

9. A box stapler as claimed in claim 1, wherein: the third transmission unit comprises a fifth transmission wheel coaxially arranged on a lower paper feeding roller rotating shaft of the paper feeding roller set and a sixth transmission wheel coaxially arranged on a lower line pressing roller rotating shaft of the line pressing roller set, close to the turnover mechanism, wherein the fifth transmission wheel is in transmission connection with the sixth transmission wheel.

10. A box stapler as claimed in claim 1, wherein: and a material limiting mechanism which is arranged on the rack and is used for laminating paper boards and supplying the paper boards to the paper feeding roller set one by one is arranged at the paper feeding end of the paper feeding roller set.