CN210763509U

CN210763509U - Automatic counting and stacking machine for corrugated boards

Info

Publication number: CN210763509U
Application number: CN201921467840.3U
Authority: CN
Inventors: 卢翅生
Original assignee: Dongguan Tongchang Paper Co ltd
Current assignee: Dongguan Tongchang Paper Co ltd
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-06-16
Anticipated expiration: 2029-09-03

Abstract

The utility model relates to the technical field of paperboard processing equipment, in particular to an automatic counting and stacking machine for corrugated paperboards, which comprises a first conveying component and a second conveying component which are arranged in sequence, wherein the conveying direction of the second conveying component is perpendicular to the conveying direction of the first conveying component, the top end of the second conveying component is fixedly provided with a mounting rack higher than the second conveying component, and the mounting rack is provided with a braking baffle; the mounting frame is provided with two limiting plates which are oppositely arranged, the mounting frame is provided with a telescopic cylinder for driving the limiting plates to move up and down, and when a piston shaft of the telescopic cylinder extends, a stacking space for stacking the paper feeding plates is formed between the two limiting plates and the brake baffle plate; and an adjusting component for driving the two limiting plates to slide in opposite directions or in opposite directions is arranged at the piston shaft of the telescopic cylinder. The beneficial effect of this application: the paperboard conveyed from the first conveying assembly to the second conveying assembly is leveled in the vertical direction, and the integrity of the stacked paperboard is improved.

Description

Automatic counting and stacking machine for corrugated boards

Technical Field

The utility model relates to a cardboard processing equipment technical field, more specifically say, it relates to an automatic pile machine of counting of corrugated container board.

Background

The carton is widely used in the packaging industry, and it forms through cardboard preparation, and the cardboard needs to carry out the stack processing to the cardboard after the cardboard processing is accomplished to be convenient for transportation and storage.

The present corrugated cardboard point stacking machine, such as chinese patent with publication number CN208531851U, discloses an automatic point stacking machine, which comprises a first conveying table, a first conveying assembly and a second conveying assembly, which are arranged in sequence, the first conveying table, install first conveyer belt on first conveying subassembly and the second conveying subassembly respectively, second conveyer belt and third conveyer belt, first conveyer belt and second conveyer belt direction of delivery are the same and have the clearance that is narrower than the cardboard between, install in the clearance and lift the paper subassembly, the direction of delivery of third conveyer belt sets up with the direction of delivery of second conveyer belt is perpendicular, the top fixed mounting of second conveying subassembly has the mounting bracket that is higher than second conveying subassembly, install vertical decurrent lift cylinder on the mounting bracket, fixedly connected with braking baffle on the piston rod of lift cylinder, braking baffle sets up and keeps away from the second conveyer belt setting along the direction of delivery of third conveyer belt. Can carry away the cardboard of stack very fast through setting up the third conveyer belt for the influence that the stack efficiency of cardboard received the cardboard to carry away is less, and the stack efficiency of cardboard is higher.

In the above technology, although the braking baffle is provided to prevent the paper boards from moving continuously along the conveying direction of the second conveyor belt, the paper boards are prone to shift in the length direction of the third conveyor belt, especially for the lowermost paper board, when the lowermost paper board is not placed at the right position on the third conveyor belt or has a certain swing angle, and the worker does not finish the paper boards in time, which may affect the situation that other paper boards stacked on the paper board are prone to be askew, and affect the integrity of the subsequent paper board stack to a certain extent.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the not enough of above-mentioned prior art, the utility model aims at providing an automatic pile machine of counting of corrugated container board carries out the flattening to the cardboard that conveys to second conveying assembly department from first conveying assembly in vertical direction, is favorable to improving the wholeness of the cardboard behind the stack.

The above technical purpose of the present invention can be achieved by the following technical solutions: an automatic counting and stacking machine for corrugated boards comprises a first conveying assembly and a second conveying assembly which are sequentially arranged, wherein the conveying direction of the second conveying assembly is perpendicular to the conveying direction of the first conveying assembly, an installation frame higher than the second conveying assembly is fixedly installed at the top end of the second conveying assembly, and a braking baffle plate used for limiting the continuous movement of a paperboard along the conveying direction of the first conveying assembly is installed on the installation frame;

the mounting frame is provided with two oppositely arranged limiting plates, the mounting frame is provided with a telescopic cylinder for driving the limiting plates to move up and down, and when a piston shaft of the telescopic cylinder extends, a stacking space for stacking the paper feeding plates is formed between the two limiting plates and the brake baffle; and the piston shaft of the telescopic cylinder is provided with an adjusting component for driving the two limiting plates to slide in opposite directions or in opposite directions.

By adopting the technical scheme, when the first conveying assembly conveys the paperboards to be stacked to the position between the braking baffle and the limiting plate of the second conveying assembly, the piston rod of the telescopic cylinder extends at the moment to enable the two limiting plates and the braking baffle to enclose and form a space for stacking the paperboards, the second conveying assembly does not act, the braking baffle limits the continuous movement of the paperboards along the conveying direction of the first conveying assembly at the moment, the two limiting plates respectively abut against the side edges of the paperboards, when the paperboards are stacked to a certain number, the piston shaft of the telescopic cylinder retracts, an opening for moving out the stacked paperboards is formed in the stacking space at the moment, and the second conveying assembly acts and conveys the stacked paperboards out; the adjusting assembly can drive the two limiting plates to move oppositely or reversely, so that the width between the two limiting plates can be suitable for paperboards with different sizes; two limiting plates, telescopic cylinder and adjusting part set up for the cardboard is difficult to appear in the stacking process and controls the condition of skew, is favorable to improving the wholeness of the cardboard after the stack.

Preferably, a first connecting part is fixedly arranged at the top of one of the limiting plates, and a second connecting part is fixedly arranged on the other limiting plate; the adjusting assembly comprises a connecting block, a first sliding plate, a second sliding plate, a first rack, a second rack and a gear, the connecting block, the first sliding plate, the second sliding plate, the first rack, the second rack and the gear are arranged at the position of the piston shaft of the telescopic cylinder, the connecting block is cuboid, an accommodating groove is formed in the side face of the connecting block in a penetrating mode, and the gear is rotatably connected in the accommodating groove; a first avoidance groove for the first connecting part to pass through is arranged on the lower groove wall of the accommodating groove in a penetrating manner along the vertical direction, the length direction of the first avoidance groove is the same as the moving direction of the first sliding plate, and the first connecting part can slide relative to the length direction of the first avoidance groove; a second avoidance groove for the second connecting part to pass through is arranged on the lower groove wall of the accommodating groove in a penetrating manner along the vertical direction, the length direction of the second avoidance groove is the same as the moving direction of the second sliding plate, and the second connecting part can slide relative to the length direction of the second avoidance groove;

first slide with the second slide all is the level and sets up relatively, the one end fixed connection of first connecting portion and first slide, the one end fixed connection of second connecting portion and second slide, first rack and second rack correspond respectively fixedly to be located one side that first slide and second slide are close to each other, just first rack with the second rack all with the gear meshes mutually, and the gear revolve is close to or keeps away from each other in order to drive first slide and second slide each other.

Through adopting above-mentioned technical scheme, when the interval between two limiting plates need to be adjusted, the rotatable gear of staff, the gear drives first rack and second rack removal respectively, drive the direction motion that first slide and second slide tend to keep away from each other or be close to each other respectively through first rack and second rack, until adjusting the interval between two limiting plates to required interval, the adjusting part sets up, simple structure, the staff of being convenient for adjusts the interval between two limiting plates.

Preferably, two opposite side walls of the first sliding plate are fixedly provided with first guide blocks, and the wall of the accommodating groove is correspondingly provided with first guide grooves for the first guide blocks to slide; and the two opposite side walls of the second sliding plate are fixedly provided with second guide blocks, and the groove wall of the accommodating groove is correspondingly provided with second guide grooves for the second guide blocks to slide.

Through adopting above-mentioned technical scheme, first guide block sets up with first guide way cooperation to and second guide block sets up with the cooperation of second guide way, makes first slide and second slide more stable at the in-process that slides.

Preferably, the first connecting portion and the second connecting portion are both vertically arranged square rods, the upper surface of the first sliding plate is abutted against the top of the accommodating groove, and the first sliding plate is fixedly connected with the upper end of the first connecting portion; the lower surface of the second sliding plate is abutted to the bottom of the accommodating groove, and the second sliding plate is fixedly arranged at the lower part of the second connecting part.

By adopting the technical scheme, the upper surface of the first sliding plate is abutted against the top of the accommodating groove, and the first sliding plate is fixedly connected with the upper end of the connecting part; the lower surface of the second sliding plate is abutted to the bottom of the accommodating groove, and the second sliding plate is fixedly arranged on the lower portion of the connecting portion, so that the first sliding plate is fixedly connected with the first connecting portion, and the second sliding plate is fixedly connected with the second connecting portion.

Preferably, the gear is connected in the accommodating groove through a rotating rod in a rotating mode, one end of the rotating rod penetrates through the connecting block and is fixedly provided with a worm wheel, the worm wheel is meshed with a worm, and a driving piece fixedly connected with the end portion of the worm is fixedly arranged on the connecting block.

Through adopting above-mentioned technical scheme, the worm gear has the characteristics of auto-lock under the effect of specific thread pitch, and the worm can order about the worm wheel promptly and rotate, and the worm wheel can't order about the worm and rotate to make things convenient for the driving piece to order about the worm and rotate, and then realize gear revolve, realize the removal of limiting plate.

Preferably, the driving member is a driving motor.

Through adopting above-mentioned technical scheme, the worm is driven to rotate to driving piece accessible driving motor electrodynamic mode.

Preferably, two opposite side surfaces of the two limiting plates are provided with wear-resistant layers.

Through adopting above-mentioned technical scheme, the wearing layer is provided with the life that does benefit to the extension limiting plate.

Preferably, the first conveying assembly comprises a first conveying table, a first conveying belt arranged on the first conveying table, a second conveying table and a second conveying belt arranged on the second conveying table, and the second conveying assembly comprises a third conveying table and a third conveying belt arranged on the third conveying table and used for conveying the sheet; between the first conveying table and the second conveying table, the conveying directions of the first conveying belt and the second conveying belt are the same, a gap narrower than the paperboard is formed between the first conveying belt and the second conveying belt, a paper lifting assembly is installed in the gap, and the conveying direction of the third conveying belt is perpendicular to the conveying direction of the second conveying belt.

By adopting the technical scheme, the brake baffle is pressed on the third conveyor belt, the third conveyor belt does not work, and the first conveyor belt and the second conveyor belt work all the time; after the cardboard was taken on first conveyer belt by mistake in proper order, can carry out the cardboard stack by the segmentation through lifting up of lifting up the paper subassembly, the cardboard of segmentation is carried to leaning on the braking baffle on the third conveyer belt through the second conveyer belt, and the both sides of these cardboards are contradicted in the limiting plate this moment, and every section of cardboard pile is piled up and is piled up behind braking baffle one side, and the operation of third conveyer belt, the back is carried out to the cardboard after the stack, and the third conveyer belt does not operate, continues the next section cardboard of stack.

Preferably, the bottom of the braking baffle is provided with a ball in a rolling manner.

Through adopting above-mentioned technical scheme, the ball is provided with and does benefit to and reduces the frictional force between braking baffle and the third conveyer belt.

To sum up, the utility model discloses following beneficial effect has:

1. the two limiting plates, the telescopic cylinder and the adjusting assembly are arranged, so that the paperboard is not easy to shift left and right in the stacking process, and the integrity of the stacked paperboard is improved;

2. the adjusting assembly is arranged, so that the structure is simple, and the distance between the two limiting plates can be conveniently adjusted by a worker, so that the two limiting plates are suitable for paperboards with different sizes;

3. the worm gear has the characteristics of auto-lock under the effect of specific thread pitch, and the worm can order about the worm wheel promptly and rotate, and the worm wheel can't order about the worm and rotate to make things convenient for the driving piece to order about the worm and rotate, and then realize gear revolve, realize the removal of limiting plate.

Drawings

Fig. 1 is a schematic structural view of an automatic counting and stacking machine for corrugated boards when a piston shaft of a telescopic cylinder retracts in the embodiment of the invention;

FIG. 2 is a schematic structural diagram of a braking baffle plate in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of the telescopic cylinder, the limiting plate, the worm wheel and the worm in the embodiment of the present invention;

FIG. 4 is a partial sectional view of a connecting block according to an embodiment of the present invention;

fig. 5 is a schematic structural view between the adjusting assembly and the limiting plate in the embodiment of the present invention;

FIG. 6 is a schematic structural view of the adjusting assembly and the worm gear in the embodiment of the present invention after a partial structural section of the connecting block;

fig. 7 is an enlarged view of a portion a of fig. 6.

Reference numerals: 101. a first transfer stage; 102. a first conveyor belt; 103. a second transfer table; 104. a second conveyor belt; 105. a third transfer station; 106. a third conveyor belt; 107. a paper lifting cylinder; 108. lifting the paper board; 21. a mounting frame; 22. braking the baffle; 23. a ball bearing; 3. a limiting plate; 31. a telescopic cylinder; 32. a first connection portion; 33. a second connecting portion; 4. connecting blocks; 51. a first slide plate; 52. a second slide plate; 61. a first rack; 62. a second rack; 7. a gear; 71. a rotating rod; 81. a containing groove; 82. a first avoiding groove; 83. a second avoiding groove; 84. a first guide groove; 85. a second guide groove; 91. a first guide block; 92. a second guide block; 10. a worm gear; 11. a worm; 12. the motor is driven.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides an automatic pile machine of counting of corrugated container board, refers to fig. 1, including the first conveying subassembly and the second conveying subassembly that set gradually, the direction of delivery of second conveying subassembly sets up with the direction of delivery of first conveying subassembly is perpendicular, and the top fixed mounting of second conveying subassembly has the mounting bracket 21 that is higher than second conveying subassembly. Specifically, the first conveying assembly comprises a first conveying table 101, a first conveying belt 102 arranged on the first conveying table 101, a second conveying table 103 and a second conveying belt 104 arranged on the second conveying table 103, which are sequentially arranged. The second conveying assembly includes a third conveying table 105 and a third conveying belt 106 disposed on the third conveying table 105 and used for conveying a sheet. The first conveyor belt 102 and the second conveyor belt 104 have the same conveying direction and have a gap narrower than the paper board, and a paper lifting assembly is installed in the gap. The paper lifting assembly comprises a paper lifting plate 108 vertically arranged in the gap and a paper lifting cylinder 107 fixedly connected to the bottom plate of the paper lifting plate 108, the paper lifting cylinder 107 is connected with a photoelectric counter (not shown in the figure), a controller (not shown in the figure) is arranged at the second conveying table 103, the photoelectric counter is electrically connected with the controller, and the paper lifting cylinder 107 is controlled by matching of the photoelectric counter and the controller, so that the number of the paper plates at each section is accurate, and the number of stacked paper sheets is accurate. The conveying direction of the third conveyor belt 106 is arranged perpendicular to the conveying direction of the second conveyor belt 104. The third conveyor 106 may be intermittently operated. The specific working principle of the point stacking machine is the prior art, and is not described herein.

Referring to fig. 1 and 2, the mounting frame 21 is mounted with a stop fence 22 for limiting the continued movement of the sheet in the conveying direction of the first conveying assembly. The top of the braking baffle 22 is fixed on the mounting frame 21 through bolts, and a worker can firstly release the fixing effect of the bolts on the braking baffle 22, so that the braking baffle 22 can be detached from the mounting frame 21. The end surface of the stop baffle 22 facing the second conveyor 104 is fixedly provided with a buffer (not shown in the figure), when the second conveyor 104 conveys the cardboard to the third conveyor 106, and the paper edge of the cardboard is abutted against the buffer of the stop baffle 22, the buffer plays a role of buffering between the cardboard and the stop baffle 22. The bottom of the braking baffle 22 is provided with a plurality of balls 23 in a rolling manner, and when the third conveyor belt 106 stops working, the balls 23 are abutted against the upper surface of the third conveyor belt 106; when the third conveyor belt 106 works, the balls 23 at the bottom of the braking baffle 22 roll relative to the third conveyor belt 106, which is beneficial to reducing the friction between the third conveyor belt 106 and the bottom of the braking baffle 22 and improving the efficiency of the third conveyor belt 106 for conveying stacked paper boards.

Referring to fig. 3, the mounting frame 21 is provided with two opposite limiting plates 3, the limiting plates 3 are long-strip plates, and two opposite side surfaces of the two limiting plates 3 are provided with wear-resistant layers. The top of one of the limiting plates 3 is fixedly provided with a first connecting part 32; the top of the other limiting plate 3 is fixedly provided with a second connecting part 33.

Referring to fig. 3, a telescopic cylinder 31 for driving the limiting plates 3 to move up and down is fixedly arranged on the mounting frame 21, and a piston shaft of the telescopic cylinder 31 passes through the mounting frame 21 and is provided with an adjusting assembly for driving the two limiting plates 3 to slide in the opposite direction or in the opposite direction. Wherein, the adjusting component comprises a connecting block 4 fixedly arranged at the piston shaft of the telescopic cylinder 31, a first sliding plate 51, a second sliding plate 52, a first rack 61, a second rack 62 and a gear 7. The connecting block 4 is rectangular, and the connecting block 4 is horizontally arranged. In this embodiment, one telescopic cylinder is provided, and the end of the piston shaft of the telescopic cylinder 31 is fixedly connected to the middle position of the top of the connecting block 4. Thereby enabling the telescopic cylinder 31 to stably drive the connecting block 4 and the limit plate 3 to move up and down.

Referring to fig. 4 and 5, a receiving groove 81 is formed through a side surface of the connecting block 4, a rotating rod 71 is fixedly disposed on the gear 7, and the gear 7 is rotatably connected to the receiving groove 81 through the rotating rod 71. A first avoiding groove 82 for the first connecting portion 32 to pass through is vertically formed in the lower groove wall of the accommodating groove 81, the length direction of the first avoiding groove 82 is the same as the moving direction of the first sliding plate 51, and when the first sliding plate 51 moves, the first connecting portion 32 slides in the length direction relative to the first avoiding groove 82. A second avoiding groove 83 for the second connecting portion 33 to pass through is vertically formed in the lower groove wall of the accommodating groove 81, the length direction of the second avoiding groove 83 is the same as the moving direction of the second sliding plate 52, and when the second sliding plate 52 moves, the second sliding plate 52 drives the second connecting portion 33 to slide along the length direction of the second avoiding groove 83.

Referring to fig. 4 and 5, the first sliding plate 51 and the second sliding plate 52 are both horizontally and oppositely disposed, the first connecting portion 32 is fixedly connected to one end of the first sliding plate 51, and the second connecting portion 33 is fixedly connected to one end of the second sliding plate 52. In this embodiment, the first connecting portion 32 and the second connecting portion 33 are both vertically disposed square rods, the upper surface of the first sliding plate 51 is abutted against the top of the accommodating groove 81, and the first sliding plate 51 is fixedly connected to the upper end of the first connecting portion 32; the lower surface of the second sliding plate 52 abuts against the bottom of the accommodating groove 81, and the second sliding plate 52 is fixedly disposed at the lower portion of the second connecting portion 33. The first rack 61 and the second rack 62 are respectively and fixedly disposed on the sides of the first sliding plate 51 and the second sliding plate 52 close to each other, and the first rack 61 and the second rack 62 are both meshed with the gear 7, and the gear 7 rotates to drive the first sliding plate 51 and the second sliding plate 52 to close to each other or to be away from each other.

Referring to fig. 4 and 5, in order to further improve the stability of the first sliding plate 51 and the second sliding plate 52 when sliding, the two opposite side walls of the first sliding plate 51 are both fixedly provided with first guide blocks 91, and the groove wall of the accommodating groove 81 is correspondingly provided with first guide grooves 84 for the first guide blocks 91 to slide. In this embodiment, two first guide blocks 91 are provided, and two first guide blocks 91 are respectively and fixedly disposed on two opposite sidewalls of the first sliding plate 51, and two first guide grooves 84 are correspondingly provided. The two opposite side walls of the second sliding plate 52 are both fixedly provided with second guide blocks 92, and the groove wall of the accommodating groove 81 is correspondingly provided with second guide grooves 85 for the second guide blocks 92 to slide. In this embodiment, two second guide blocks 92 are provided, and the two second guide blocks 92 are respectively and fixedly disposed on two opposite sidewalls of the second sliding plate 52, and two second guide grooves 85 are correspondingly provided. Both ends of the first guide groove 84 and both ends of the second guide groove 85 are closed ends, so that the first guide block 91 is not easily separated from the first guide groove 84, and likewise, the second guide block 92 is not easily separated from the second guide groove 85.

Referring to fig. 6 and 7, one end of the rotating rod 71 penetrates through the connecting block 4 and is fixedly provided with a worm wheel 10, the worm wheel 10 is meshed with a worm 11, and the worm 11 is rotatably connected outside the connecting block 4. When the worm 11 rotates to drive the worm wheel 10 to rotate, the gear 7 in the connecting block 4 rotates synchronously. The connecting block 4 is provided with the driving piece with 11 end fixed connection of worm, wherein, the driving piece is driving motor 12 or driving handle, and in this embodiment, the driving piece is preferably driving motor 12, wherein, is connected with corotation switch and reversal switch on the driving motor 12, and the staff can order about driving motor 12 corotation through the corotation switch, can order about driving motor 12 reversal through the reversal switch.

After the staff finishes adjusting the interval between two limiting plates 3, driving motor 12, worm wheel 10 and worm 11 cooperate the setting for two limiting plates 3 can stably keep in current position.

The specific working process is as follows:

when the piston shaft of the telescopic cylinder 31 extends, the bottoms of the two limiting plates 3 can abut against the upper surface of the third conveyor belt 106, and a stacking space for stacking the paper feeding plates is formed between the two limiting plates 3 and the brake baffle 22; second conveyer belt 104 conveys the cardboard to third conveyer belt 106 and makes the cardboard enter into to the stack space in, brake baffle 22 contradicts this moment and deviates from the ascending side in second conveyer belt 104 side in the cardboard, and the cardboard contradicts in other relative both sides limit in two limiting plates 3, limiting plate 3 makes the relative both sides limit flattening of this cardboard, and at this moment, when telescopic cylinder 31's piston shaft withdrawal, one side in stack space was equipped with the opening that supplies the good cardboard of stack to pass through this moment, and when third conveyer belt 106 during operation this moment, third conveyer belt 106 drives the good cardboard of stack and shifts out from this opening part.

When the interval between two limiting plates 3 needs to be adjusted, the staff can drive the work of the motor 12, the motor 12 drives the worm 11 to rotate to drive the worm wheel 10 to rotate, and the worm wheel 10 drives the gear 7 to rotate at the moment, so that the gear 7 drives the first rack 61 and the second rack 62 to be close to each other or to be away from each other, and the interval between the two limiting plates 3 is adjusted. When the distance between the two limiting plates 3 is adjusted to the required distance, the worker stops the driving motor 12, and the worm 11 and the worm wheel 10 are matched to realize self-locking, so that the two limiting plates 3 are kept at the current positions.

The above embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the present invention.

Claims

1. An automatic counting and stacking machine for corrugated boards comprises a first conveying assembly and a second conveying assembly which are sequentially arranged, wherein the conveying direction of the second conveying assembly is perpendicular to the conveying direction of the first conveying assembly, an installation frame (21) higher than the second conveying assembly is fixedly installed at the top end of the second conveying assembly, and a braking baffle (22) used for limiting the continuous movement of the boards along the conveying direction of the first conveying assembly is installed on the installation frame (21); the method is characterized in that: the mounting frame (21) is provided with two oppositely arranged limiting plates (3), a telescopic cylinder (31) for driving the limiting plates (3) to move up and down is arranged on the mounting frame (21), and when a piston shaft of the telescopic cylinder (31) extends, a stacking space for stacking the paper feeding plates is formed between the two limiting plates (3) and the brake baffle (22); and an adjusting component for driving the two limiting plates (3) to slide oppositely or reversely is arranged at the piston shaft of the telescopic cylinder (31).

2. An automatic point stacking machine for corrugated cardboard according to claim 1, characterized in that: the top of one of the limiting plates (3) is fixedly provided with a first connecting part (32), and the other limiting plate (3) is fixedly provided with a second connecting part (33); the adjusting assembly comprises a connecting block (4) arranged at the piston shaft of the telescopic cylinder (31), a first sliding plate (51), a second sliding plate (52), a first rack (61), a second rack (62) and a gear (7), the connecting block (4) is cuboid, an accommodating groove (81) is formed in the side face of the connecting block (4) in a penetrating mode, and the gear (7) is rotatably connected into the accommodating groove (81); a first avoidance groove (82) for the first connecting part (32) to pass through is arranged on the lower groove wall of the accommodating groove (81) in a penetrating manner along the vertical direction, the length direction of the first avoidance groove (82) is the same as the moving direction of the first sliding plate (51), and the first connecting part (32) can slide relative to the length direction of the first avoidance groove (82); a second avoiding groove (83) for the second connecting part (33) to pass through is arranged on the lower groove wall of the accommodating groove (81) in a penetrating manner along the vertical direction, the length direction of the second avoiding groove (83) is the same as the moving direction of the second sliding plate (52), and the second connecting part (33) can slide relative to the length direction of the second avoiding groove (83);

first slide (51) with second slide (52) all are the level and set up relatively, the one end fixed connection of first connecting portion (32) and first slide (51), the one end fixed connection of second connecting portion (33) and second slide (52), first rack (61) and second rack (62) correspond respectively and fixedly locate first slide (51) and second slide (52) one side that is close to each other, just first rack (61) with second rack (62) all with gear (7) mesh mutually, gear (7) rotate in order to drive first slide (51) and second slide (52) and be close to each other or keep away from each other.

3. An automatic point stacking machine for corrugated cardboard according to claim 2, characterized in that: two opposite side walls of the first sliding plate (51) are fixedly provided with first guide blocks (91), and the groove wall of the accommodating groove (81) is correspondingly provided with first guide grooves (84) for the first guide blocks (91) to slide; and the two opposite side walls of the second sliding plate (52) are fixedly provided with second guide blocks (92), and the groove wall of the accommodating groove (81) is correspondingly provided with second guide grooves (85) for the second guide blocks (92) to slide.

4. An automatic point stacking machine for corrugated cardboard according to claim 2, characterized in that: the first connecting portion (32) and the second connecting portion (33) are both vertically arranged square rods, the upper surface of the first sliding plate (51) is abutted against the top of the accommodating groove (81), and the first sliding plate (51) is fixedly connected with the upper end of the first connecting portion (32); the lower surface of the second sliding plate (52) abuts against the bottom of the accommodating groove (81), and the second sliding plate (52) is fixedly arranged at the lower part of the second connecting part (33).

5. An automatic point stacking machine for corrugated cardboard according to claim 2, characterized in that: gear (7) rotate through a bull stick (71) and connect in storage tank (81), connecting block (4) is worn out and worm wheel (10) are fixed to be provided with to the one end of bull stick (71), worm wheel (10) meshing has worm (11), connecting block (4) fixed be provided with worm (11) tip fixed connection's driving piece.

6. An automatic point stacking machine for corrugated cardboard according to claim 5, characterized in that: the driving piece is a driving motor (12).

7. An automatic point stacking machine for corrugated cardboard according to claim 1, characterized in that: two opposite side surfaces of the two limiting plates (3) are provided with wear-resistant layers.

8. An automatic point stacking machine for corrugated cardboard according to claim 1, characterized in that: the first conveying assembly comprises a first conveying table (101), a first conveying belt (102) arranged on the first conveying table (101), a second conveying table (103) and a second conveying belt (104) arranged on the second conveying table (103), and the first conveying assembly comprises a third conveying table (105) and a third conveying belt (106) arranged on the third conveying table (105) and used for conveying a paper board; between first conveying platform (101) and second conveying platform (103), first conveyer belt (102) and second conveyer belt (104) direction of delivery is the same and have the clearance that is narrower than the cardboard between, installs in the clearance and lifts the paper subassembly, and the direction of delivery of third conveyer belt (106) sets up with the direction of delivery of second conveyer belt (104) is perpendicular.

9. An automatic point stacking machine for corrugated cardboard according to claim 1, characterized in that: and the bottom of the braking baffle plate (22) is provided with a ball (23) in a rolling manner.