Automatic paper feeding and separating device

Abstract

The utility model relates to the technical field of paper wrapping machines, and discloses an automatic paper feeding and separating device which comprises a first conveying line, a second conveying line and a paper separating conveying line, a paper pile separating mechanism is arranged between the first conveying line and the second conveying line, and a paper pushing mechanism is arranged between the second conveying line and the paper separating conveying line. The output end of the paper separation conveying line is provided with a paper separation mechanism used for separating single paperboards. The first conveying line and the paper separating conveying line are both perpendicular to the second conveying line. One end of the paper pile separating mechanism is in butt joint with the output end of the first conveying line, and the other end of the paper pile separating mechanism is in butt joint with the input end of the second conveying line. The device has the beneficial effects that the structure is stable and compact, paper piles are automatically conveyed and separated, and paperboards are automatically separated one by one.

Description

TECHNICAL FIELD

[0001] The utility model relates to paper wrapping machine technical field especially relates to a kind of automatic paper feeding and separating device. BACKGROUND

[0002] Paper wrapping machine is a kind of equipment applied in the process of carton packaging goods, in traditional packaging process, generally by artificial paperboard stack is sent to paperboard separating station, then by separating station output single paperboard;This delivery mode makes artificial handling task heavy, need to add paperboard stack in time, too cumbersome. CONTENT OF UTILITY MODEL

[0003] The utility model discloses to solve the above -mentioned problems in prior art, provide a kind of automatic paper feeding and separating device, paper stack is automatically transported and separated, paperboard is automatically separated single.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A kind of automatic paper feeding and separating device, including first conveying line, second conveying line, paper separating conveying line, the first conveying line is equipped with paper stack separating mechanism between second conveying line, the second conveying line is equipped with paper pushing mechanism between paper separating conveying line, the output end of paper separating conveying line is equipped with the paper separating mechanism for single paperboard separation;The first conveying line, paper separating conveying line are all perpendicular to second conveying line;The one end of paper stack separating mechanism is butt joint with the output end of first conveying line, the other end of paper stack separating mechanism is butt joint with the input end of second conveying line.

[0006] By adopting the above technical scheme: paper stack is automatically continuously transported by first conveying line, then is automatically separated by paper stack separating mechanism, and paper stack after separation is transported along second conveying line, and a group of paper stack is sent into paper separating conveying line by paper pushing mechanism, and finally single paperboard is separated by paper separating mechanism.The device saves artificial handling, adds the work of paper stack, and overall use is more convenient.

[0007] As preferred, the paper stack separating mechanism includes a roller conveying line, a plurality of paper stack conveying belts arranged on the lower side of the roller conveying line, the paper stack conveying belts are arranged between adjacent rollers on the roller conveying line, the bottom of the paper stack conveying belts is provided with a lifting support, the bottom of the lifting support is provided with a first lifting power, the output end of the paper stack conveying belts is provided with a limiting baffle with adjustable distance; the conveying direction of the paper stack conveying belts is perpendicular to the conveying direction of the roller conveying line, the input end of the paper stack conveying belts is butt joint with the output end of the first conveying line, the output end of the roller conveying line is butt joint with the input end of the second conveying line. The first lifting power drives the paper stack conveying belts on the lifting support to rise, so that the paper stack can smoothly enter the paper stack separating station, and then after descending, the paper stack is transferred to the second conveying line by the roller conveying line.

[0008] As a preferred, the paper separating mechanism comprises a paper blocking mechanism and a paper output mechanism, the paper blocking mechanism comprises a plurality of paper blocking components, a first paper output gap is provided between the lower end of the paper blocking component and the upper surface of the paper separating conveying line, the paper output mechanism comprises a lower support plate and an adjustable height upper adjusting member provided on the upper side of the lower support plate, the second paper output gap only for single paper passing through is formed between the upper adjusting member and the lower support plate; when the paper stack moves to the paper blocking mechanism and is blocked by the paper blocking component, the paper board at the lowermost of the paper stack is sequentially output after passing through the first paper output gap and the second paper output gap under the friction of the paper separating conveying line. The paper stack moves along the paper separating conveying line to be blocked at the paper blocking component, the paper board at the lowermost of the paper stack passes through the first paper output gap under the friction of the paper separating conveying line, and then is stably separated after passing through the second paper output gap. The paper separating system realizes automatic separation of the paper stack and stable separation of the single paper board, and is stable in use and not easy to jam.

[0009] As a preferred, the output ends of the paper separating conveying line and the second conveying line are provided in the rack, the paper pushing mechanism comprises a push plate and a translation mechanism for driving the push plate to reciprocate between the second conveying line and the paper separating conveying line, the output end of the second conveying line and the side surface of the paper separating conveying line are provided with the first blocking plate which is vertically distributed with the push plate, the first adjusting mechanism for adjusting the position of the first blocking plate is provided on the rack; the second blocking plate is provided on the opposite side of the first blocking plate on the paper separating conveying line, the second adjusting mechanism for adjusting the position of the second blocking plate is provided on the rack; when the paper stack on the second conveying line is conveyed to contact the first blocking plate, the translation mechanism drives the push plate to push the paper stack on the second conveying line to the paper separating conveying line.

[0010] As a preferred, the paper blocking component comprises a connecting seat, a blocking block which is slidingly connected with the connecting seat in up and down directions, and a pressure roller which is provided on the front side of the lower end of the blocking block and elastically abuts against the paper separating conveying line, the first paper output gap is formed between the lower end of the blocking block and the paper separating conveying line, and the height fine adjusting mechanism for adjusting the size of the first paper output gap is provided on the connecting seat. The blocking block is used for blocking the paper stack, and the size of the first paper output gap can be adjusted by the height fine adjusting mechanism to meet the separation requirement of paper boards with different thicknesses.

[0011] As a preferred, the height fine adjusting mechanism comprises a vertical screw rod which is rotationally connected with the connecting seat, and a connecting block which is threadedly connected with the vertical screw rod, the other end of the connecting block is fixedly connected with the blocking block, and the pre-tightening spring is provided on the vertical screw rod.

[0012] As preferred, the upper end rear side of the block is provided with a paper pressing mechanism, which comprises a pressing block and a paper pressing power driving the pressing block to lift; when the paper stack is blocked at the paper separating assembly while moving along the paper separating conveying line, the paper pressing power drives the pressing block to lower and press on the uppermost end of the paper stack. The pressing block presses on the upper end of the paper stack, thereby increasing the friction between the lowermost paper board and the paper separating conveying line and improving the paper separating stability.

[0013] As preferred, the front end of the paper separating conveying line is rotationally connected with the frame, and the rear end of the paper separating conveying line is provided with an angle adjusting mechanism for adjusting the inclination angle of the paper separating conveying line. By adjusting the angle of the paper separating conveying line, the acting force between the paper separating conveying line and the paper board is changed, thereby ensuring the stable paper separating.

[0014] As preferred, the angle adjusting mechanism comprises a rotating sleeve rotationally connected with the rear end of the paper separating conveying line and a support rod fixed on the rotating sleeve, the support rod is configured as a screw rod, and the lower end of the support rod is connected with the frame through a fastener.

[0015] As preferred, the upper surface of the paper separating conveying line is configured as an arc surface with the middle high and the two ends low. The paper board has a certain flexibility, and the paper separating conveying line is configured as an arc surface, thereby increasing the acting force (the resultant force of the friction and the thrust) between the paper separating conveying line and the paper board, so that the lowermost paper board can be stably separated and enter the first paper outlet gap.

[0016] As preferred, the paper separating conveying line comprises a plurality of groups of parallel paper separating conveying line bodies, each of the paper separating conveying line body comprises a paper separating conveying line support and a paper separating conveying belt, and the paper separating conveying line supports are provided with connecting rods therebetween, and the connecting rods are provided with a cleaning mechanism for cleaning the paper separating conveying belt; the cleaning mechanism comprises a brush arranged on the lower side of the paper separating conveying line, the two ends of the brush are rotationally connected with the connecting rod through a swing arm, and the lower side of the paper separating conveying line is provided with a power assembly driving the swing arm to rotate; in a first state, the power assembly drives the swing arm to rotate downward to separate the brush from the paper separating conveying belt; in a second state, the power assembly drives the swing arm to swing upward to make the brush contact the surface of the paper separating conveying belt. With the use of the paper separating conveying belt, there will be paper dust and powder on the surface of the paper separating conveying belt, thereby reducing the friction between the paper separating conveying belt and the paper board. The cleaning can regularly clean away the paper dust and powder, so that the friction between the paper separating conveying belt and the paper board is kept stable.

[0017] As preferred, the rear end of the lower support plate is provided with a downwardly inclined guide plate, the rear end of the upper adjusting member is provided with a plurality of upwardly inclined guides, and the upper adjusting member is connected with a second lifting power. The second lifting power can adjust the size of the second paper outlet gap, and when the paper jam occurs, the upper adjusting member is driven by the second lifting power to move upward, thereby facilitating the taking out of the paper board of the paper jam.

[0018] As preferred, the front end of the paper outlet mechanism is provided with a traction mechanism, the traction mechanism comprising two groups of traction cylinders with equal rotating speed and opposite rotating direction; the front end of the traction mechanism is provided with a compression roller, the compression roller being rotatably connected with the frame through a roller frame, and the roller frame being provided with a handle.

[0019] As preferred, the thickness of the single paper board is a, the distance between the front and back ends of the single paper board when moving along the paper separating conveying line is b, the height of the first paper outlet gap is h, the height of the second paper outlet gap is s, and the distance between the first paper outlet gap and the second paper outlet gap is L, wherein: a < h < 2a, a ≤ s < h, and L < b. By reasonably setting the size of the first paper outlet gap and the second paper outlet gap, it is ensured that the single paper board can be stably separated.

[0020] Therefore, the paper stack is automatically and continuously conveyed and separated, and manual carrying is saved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic view of the utility model.

[0022] Figure 2 It is a structural schematic view of the paper stack separating mechanism.

[0023] Figure 3 It is an exploded view of Figure 2

[0024] Figure 4 It is a structural schematic view of the paper separating conveying line and the paper separating mechanism.

[0025] Figure 5 It is a top view of Figure 4

[0026] Figure 6 It is an exploded view of Figure 4

[0027] Figure 7 It is a schematic view of the first adjusting mechanism and the horizontal adjusting mechanism.

[0028] Figure 8 It is a schematic view of the paper stack being blocked by the paper blocking mechanism.

[0029] Figure 9 It is a schematic view of the paper separating mechanism.

[0030] Figure 10 It is an exploded view of the paper blocking mechanism.

[0031] Figure 11 ​​​It is a structural schematic diagram of the paper separating conveying line.

[0032] Figure 12 It is an explosion view of the paper separating conveying line. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial technical effects of the present application more clearly understood, the present application will be further described in detail below in conjunction with the drawings and several exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the protection scope of the present application.

[0034] It should be understood that, in this paper, the expressions "first", "second" and the like are only used for descriptive purposes, and should not be understood as indicating or implying relative importance, nor should it be understood as implying the number of the indicated technical features. The features with "first", "second" can be explicitly or implicitly indicated to include at least one feature.

[0035] As shown in Figures 1-8 An automatic paper feeding and separating device, comprising a first conveying line 1, a second conveying line 2, a paper separating conveying line 5, a paper stack separating mechanism 3 arranged between the first conveying line 1 and the second conveying line 2, a paper pushing mechanism 4 arranged between the second conveying line 2 and the paper separating conveying line 5, and a paper separating mechanism 6 arranged at the output end of the paper separating conveying line 5 for separating single paper boards 90; the first conveying line 1 and the paper separating conveying line 5 are perpendicular to the second conveying line 2; one end of the paper stack separating mechanism 3 is connected to the output end of the first conveying line 1, and the other end of the paper stack separating mechanism 3 is connected to the input end of the second conveying line 2. In some embodiments, the first conveying line 1, the second conveying line 2 and the paper separating conveying line 5 are arranged in a U-shaped distribution, and the first conveying line 1 and the paper separating conveying line 5 are arranged on the same side of the second conveying line 2, so that the overall structure is more compact and occupies less space.

[0036] As shown in Figure 2 and Figure 3 The paper stack separating mechanism 3 comprises a roller conveying line 30 and a plurality of paper stack conveying belts 31 arranged on the lower side of the roller conveying line 30; the paper stack conveying belts 31 are arranged between adjacent rollers on the roller conveying line 30; the bottom of the paper stack conveying belts 31 is provided with a lifting support 32, the bottom of the lifting support 32 is provided with a first lifting power 33, and the output end of the paper stack conveying belts 31 is provided with a distance-adjustable limiting baffle 34; the conveying direction of the paper stack conveying belts 31 is perpendicular to the conveying direction of the roller conveying line 30; the input end of the paper stack conveying belts 31 is connected to the output end of the first conveying line 1, and the output end of the roller conveying line 30 is connected to the input end of the second conveying line 2.

[0037] As shown in Figures 7-10As shown, the paper separating mechanism 6 includes a paper blocking mechanism 60 and a paper output mechanism 61. The paper blocking mechanism 60 includes a plurality of paper blocking assemblies 600, and a first paper output gap 100 is formed between the lower ends of the paper blocking assemblies 600 and the upper surface of the paper separating conveying line 5. The paper output mechanism 61 includes a lower support plate 610 and an upper adjustable member 611 arranged on the upper side of the lower support plate 610. The upper adjustable member 611 and the lower support plate 610 form a second paper output gap 101 only for the single paper sheet 90 to pass through. When the paper stack 9 moves to the paper blocking mechanism 60 and is blocked by the paper blocking assemblies 600, the paper sheet 90 at the bottom of the paper stack is sequentially output through the first paper output gap 100 and the second paper output gap 101 under the friction of the paper separating conveying line 5.

[0038] The thickness of the single paper sheet 90 is a, the distance between the front and rear ends of the single paper sheet 90 is b, the height of the first paper output gap 100 is h, the height of the second paper output gap 101 is s, and the distance between the first paper output gap 100 and the second paper output gap 101 is L, wherein a < h < 2a, a ≤ s < h, and L < b. In some embodiments, h = 1.6a, s = 1.2a, and L = 0.8b.

[0039] The output ends of the paper separating conveying line 5 and the second conveying line 2 are arranged in the rack 7. The paper pushing mechanism 4 includes a pushing plate 40 and a translation mechanism 41 for driving the pushing plate 40 to reciprocate between the second conveying line 2 and the paper separating conveying line 5. The output end of the second conveying line 2 and the side surface of the paper separating conveying line 5 are both provided with a first baffle 42 vertically distributed with the pushing plate 40. The rack 7 is provided with a first adjusting mechanism 43 for adjusting the position of the first baffle 42. The side opposite to the first baffle 42 of the paper separating conveying line 5 is provided with a second baffle 44, and the rack 7 is provided with a second adjusting mechanism 45 for adjusting the position of the second baffle 44. When the paper stack on the second conveying line 2 is conveyed to contact the first baffle 42, the translation mechanism 41 drives the pushing plate 40 to push the paper stack on the second conveying line 2 to the paper separating conveying line 5.

[0040] In some embodiments, the first adjusting mechanism adopts the following scheme: the first adjusting mechanism 43 includes two first lead screws 430 arranged in parallel, a transmission lead screw 431 connected to the two first lead screws, and one end of one of the first lead screws 430 provided with a first handle 432 for driving the first lead screw to rotate. The transmission lead screw 431 is in meshing transmission with the first lead screw through a helical gear 433. The two ends of the first baffle 42 are provided with lead screw seats 420, the first lead screws 430 pass through the lead screw seats 420 to form threaded connections, the rack 7 is provided with slide rails 434 arranged in parallel with the first lead screws 430, and the side surfaces of the lead screw seats 420 are slidingly connected to the slide rails through slide blocks 435. Figure 9 As shown, the second adjusting mechanism 45 also adopts a lead screw and handle structure to adjust the position of the second baffle 44.

[0041] As shown in Figure 7 and Figure 10 , the paper stopping assembly 600 comprises a connecting seat 601, a stop block 602 slidingly connected to the connecting seat 601, a pressure roller 603 arranged at the front side of the lower end of the stop block 602 and elastically abutting against the paper separating and conveying line 5, a first paper outlet gap 100 being formed between the lower end of the stop block 602 and the paper separating and conveying line 5, and a height fine adjustment mechanism 62 arranged on the connecting seat 601 and used for adjusting the size of the first paper outlet gap 100. The height fine adjustment mechanism 62 comprises a vertical screw rod 620 rotatably connected to the connecting seat 601, a connecting block 621 threadedly connected to the vertical screw rod 620, and the other end of the connecting block 621 being fixedly connected to the stop block 602. A pre-tightening spring 622 is arranged on the vertical screw rod 620.

[0042] The pressure roller 603 is rotatably connected to the stop block 602 through a connecting arm 604, a support block 605 is fixedly arranged on the upper side of the stop block 602 and located above the pressure roller 603, and an elastic member 606 is arranged between the support block 605 and the connecting arm 604 and used for driving the pressure roller 603 to abut against the paper separating and conveying line 5. An arc-shaped guide surface 607 is arranged on the opposite side of the lower end of the stop block 602 and the pressure roller 603.

[0043] A paper pressing mechanism 64 is arranged on the rear side of the upper end of the stop block 602, and the paper pressing mechanism 64 comprises a pressing block 640 and a paper pressing power 641 used for driving the pressing block 640 to move up and down. When the paper stack moves along the paper separating and conveying line 5 to the position of the paper stopping assembly 600 and is blocked, the paper pressing power 641 drives the pressing block 640 to press against the uppermost end of the paper stack.

[0044] In some embodiments, a transverse adjustment structure 63 is arranged on the rack 7 and used for adjusting the transverse position of the paper stopping assembly 600. The transverse adjustment structure 63 comprises a transverse screw rod 630 and a horizontal shaft 631 arranged in parallel with the transverse screw rod 630. The connecting seat 601 is slidingly connected to the horizontal shaft 631, the transverse screw rod 630 is threadedly connected through the connecting seat 601, and one end of the transverse screw rod 630 is provided with a second adjustment handle 632.

[0045] As shown in Figure 8 , Figure 11 and Figure 12 , the front end of the paper separating and conveying line 5 is rotatably connected to the rack 7, an angle adjustment mechanism 50 is arranged between the rear end of the paper separating and conveying line 5 and the rack 7 and used for adjusting the inclination angle of the paper separating and conveying line 5. The angle adjustment mechanism 50 comprises a rotating sleeve 500 rotatably connected to the rear end of the paper separating and conveying line 5 and a support rod 501 fixedly arranged on the rotating sleeve 500. The support rod 501 is configured as a screw rod, the lower end of the support rod 501 is connected to the rack 7 through a fastener 502, and the upper surface of the paper separating and conveying line 5 is configured as an arc surface with a high middle and low ends.

[0046] The paper separating conveyor line 5 includes several sets of parallel paper separating conveyor line bodies 51. Each paper separating conveyor line body 51 includes a paper separating conveyor line bracket 510 and a paper separating conveyor belt 511. A connecting rod 512 is provided between the paper separating conveyor line brackets 510. A cleaning mechanism 52 for cleaning the paper separating conveyor belt is provided on the connecting rod 512. The cleaning mechanism 52 includes a brush 520 disposed on the lower side of the paper separating conveyor line 5. The two ends of the brush 520 are rotatably connected to the connecting rod 512 through a swing arm 521. A power component 522 for driving the swing arm to rotate is provided on the lower side of the paper separating conveyor line 5. In the first state, the power component 522 drives the swing arm 521 to rotate downward, causing the brush 520 to separate from the paper separating conveyor belt 511. In the second state, the power component 522 drives the swing arm 521 to swing upward, causing the brush 520 to contact the surface of the paper separating conveyor belt 511.

[0047] The rear end of the lower support plate 610 is provided with a downwardly inclined guide plate 612, and the rear end of the upper adjusting member 611 is provided with several upwardly inclined guide members 613. The upper adjusting member 611 is connected to a second lifting power 614, which can be any one of a pneumatic cylinder, an electric cylinder, or a hydraulic cylinder.

[0048] like Figure 9 As shown, the front end of the paper output mechanism 61 is provided with a traction mechanism 8, which includes two sets of traction rollers 80 with equal rotation speed and opposite direction; the front end of the traction mechanism 8 is provided with a pressure roller 81, which is rotatably connected to the frame 7 through a roller frame 82, and a handle 83 is provided on the roller frame.

[0049] Referring to the accompanying drawings, the principle of this utility model is as follows: A continuous stack of paper 9 is conveyed on the first conveyor line 1. After being separated by the paper stack separation mechanism 3, the paper stacks 9 are sequentially transferred to the second conveyor line 2 and move along the second conveyor line. A paper pushing mechanism 4 pushes a group of paper stacks from the second conveyor line to the paper separating conveyor line 6. The paper stacks 9 move along the paper separating conveyor line and are blocked at the paper stop assembly 600. Figure 8 As shown, the bottom sheet of paperboard 90 in the paper stack is separated stably by passing through the first paper exit gap 100 and then the second paper exit gap 101 under the friction of the paper separating conveyor line 6. By reasonably setting the first paper exit gap 100 and the second paper exit gap 101, the separation of paperboards of different thicknesses can be achieved. This paper separating system realizes automatic separation of paper stacks and stable separation of single paperboards, and is stable in use and not prone to paper jams.

[0050] In the description of this utility model, it should be understood that the directions or positional relationships indicated by up, down, left, right, inner end, outer end, one end, and the other end are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the purpose of more clearly describing the technical solution of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as a limitation of this utility model.

[0051] Although specific embodiments of the present application are described in detail herein, these specific embodiments are not intended to limit the scope of the present application, as various modifications, equivalents and alternatives are intended to be included within the scope of the present application.

Claims

1. An automatic paper feed and separating device, characterized in that, The paper stack separating mechanism (3) includes a roller conveying line (30) and a plurality of paper stack conveying belts (31) arranged on the lower side of the roller conveying line (30), the paper stack conveying belts (31) are arranged between adjacent rollers on the roller conveying line (30), the bottom of the paper stack conveying belt (31) is provided with a lifting support (32), the bottom of the lifting support (32) is provided with a first lifting power (33), and the output end of the paper stack conveying belt (31) is provided with a limiting baffle (34) with adjustable distance. The conveying direction of the paper stack conveying belt (31) is perpendicular to the conveying direction of the roller conveying line (30), the input end of the paper stack conveying belt (31) is connected with the output end of the first conveying line (1), and the output end of the roller conveying line (30) is connected with the input end of the second conveying line (2).

2. An automatic paper feed and separating device according to claim 1, wherein The paper stack separating mechanism (6) includes a paper stopping mechanism (60) and a paper discharging mechanism (61), the paper stopping mechanism (60) includes a plurality of paper stopping assemblies (600), the lower end of the paper stopping assembly (600) is provided with a first paper discharging gap (100) between the upper surface of the paper separating conveying line (5), and the paper discharging mechanism (61) includes a lower support plate (610) and an upper adjusting piece (611) arranged on the upper side of the lower support plate (610) and having adjustable height. When the paper stack (9) moves to the paper stopping mechanism (60) and is blocked by the paper stopping assembly (600), the paperboard (90) at the bottom of the paper stack is sequentially discharged through the first paper discharging gap (100) and the second paper discharging gap (101) under the friction of the paper separating conveying line (5).

3. An automatic paper feed and separating device according to claim 1 or 2, characterized in that The output ends of the paper separating conveying line (5) and the second conveying line (2) are arranged in the rack (7), the paper pushing mechanism (4) includes a push plate (40) and a translation mechanism (41) for driving the push plate (40) to reciprocate between the second conveying line (2) and the paper separating conveying line (5), the output end of the second conveying line (2) and the side surface of the paper separating conveying line (5) are provided with a first baffle (42) perpendicular to the push plate (40), and the rack (7) is provided with a first adjusting mechanism (43) for adjusting the position of the first baffle (42). ​ 4. The automatic paper feed and separating device according to claim 1, wherein ​ A second baffle (44) is arranged on the paper separating conveying line (5) opposite to the first baffle (42), and a second adjusting mechanism (45) for adjusting the position of the second baffle (44) is arranged on the frame (7); When the paper stack on the second conveying line (2) is conveyed to contact with the first baffle (42), the translation mechanism (41) drives the push plate (40) to push the paper stack on the second conveying line (2) to the paper separating conveying line (5).

5. An automatic paper feed and separating device according to claim 3, wherein The paper blocking assembly (600) comprises a connecting seat (601), a blocking block (602) slidingly connected to the connecting seat (601) in up and down directions, and a pressure roller (603) arranged on the front side of the lower end of the blocking block (602) and elastically abutting against the paper separating conveying line (5), wherein the lower end of the blocking block (602) and the paper separating conveying line (5) form the first paper outlet gap (100), and the connecting seat (601) is provided with a height fine adjustment mechanism (62) for adjusting the size of the first paper outlet gap (100).

6. An automatic paper feed and separating device according to claim 5, wherein The upper end of the blocking block (602) is provided with a paper pressing mechanism (64), and the paper pressing mechanism (64) comprises a pressing block (640) and a paper pressing power (641) for driving the pressing block to lift, wherein when the paper stack is blocked by the paper blocking assembly (600) while moving along the paper separating conveying line (5), the paper pressing power (641) drives the pressing block (640) to descend and press on the uppermost end of the paper stack.

7. The automatic paper feed and separation device according to claim 1, wherein The front end of the paper separating conveying line (5) is rotationally connected to the frame (7), and the angle adjusting mechanism (50) for adjusting the inclination angle of the paper separating conveying line (5) is arranged between the rear end of the paper separating conveying line (5) and the frame (7). The angle adjusting mechanism (50) comprises a rotating sleeve (500) rotationally connected to the rear end of the paper separating conveying line (5) and a support rod (501) fixedly arranged on the rotating sleeve (500), wherein the support rod (501) is configured as a screw rod, and the lower end of the support rod (501) is connected to the frame (7) through a fastener (502).

8. The automatic paper feeding and separating device according to claim 1 or 7, wherein The upper surface of the paper separating conveying line (5) is configured as an arc surface with a middle part being higher and both ends being lower.

9. The automatic paper feed and separation device according to claim 1, wherein The paper separating conveying line (5) comprises a plurality of groups of parallel paper separating conveying line bodies (51), each of the paper separating conveying line bodies (51) comprises a paper separating conveying line support (510) and a paper separating conveying belt (511), and a connecting rod (512) is arranged between the paper separating conveying line supports (510), wherein the connecting rod (512) is provided with a cleaning mechanism (52) for cleaning the paper separating conveying belt (511). The cleaning mechanism (52) comprises a brush (520) arranged on the lower side of the paper separating conveying line (5), both ends of the brush (520) are rotationally connected to the connecting rod (512) through a swing arm (521), and a power assembly (522) for driving the swing arm to rotate is arranged on the lower side of the paper separating conveying line (5). In the first state, the power assembly (522) drives the swing arm (521) to rotate downward so that the brush (520) is separated from the paper separating conveying belt (511); and in the second state, the power assembly (522) drives the swing arm (521) to swing upward so that the brush (520) contacts the surface of the paper separating conveying belt (511).

10. An automatic paper feed and separating device according to claim 3, wherein The thickness of the single sheet board (90) is set as a, the distance between the front and back ends of the single sheet board (90) when moving along the sheet conveying line (5) is set as b, the height of the first paper outlet gap (100) is configured as h, the height of the second paper outlet gap (101) is configured as s, and the distance between the first paper outlet gap (100) and the second paper outlet gap (101) is configured as L, wherein: a

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