Paper feeding and separating system of paper wrapping machine

Abstract

The invention relates to the technical field of paper packaging machines, and discloses a paper packaging machine paper feeding and separating system 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 paper separating mechanism comprises a paper blocking mechanism and a paper discharging mechanism, the paper blocking mechanism comprises a plurality of paper blocking assemblies, a first paper discharging gap is formed between the lower end of each paper blocking assembly and the upper surface of the paper separating conveying line, and the paper discharging mechanism comprises a lower supporting plate and an upper adjusting piece which is arranged on the upper side of the lower supporting plate and can adjust the height. And a second paper outlet gap which only allows a single paperboard to pass through is formed between the upper adjusting piece and the lower supporting plate. The paper separation device has the beneficial effects of stable paper separation and difficulty in paper clamping.

Description

Technical Field

[0001] The invention relates to the technical field of paper packing machines, and in particular to a paper feeding and separating system of a paper packing machine. Background Art

[0002] The paper packing machine is a device used in the process of packaging items in cartons. In the traditional packaging process, the cardboard pile is usually transported manually to the cardboard separation station, and then the separation station outputs a single cardboard. This transportation mode makes the manual handling task heavy and requires timely addition of cardboard piles, which is too cumbersome. At the same time, the existing paper packing machine's paper separation mechanism is unstable, and it is easy to have problems such as paper jams or multiple paper separation. Summary of the invention

[0003] In order to solve the above problems existing in the prior art, the present invention provides a paper feeding and paper separation system for a paper packaging machine which is convenient for paper feeding, stable for paper separation and not prone to paper jam.

[0004] In order to achieve the above object, the present invention adopts the following technical solution: A paper feeding and separating system of a paper packaging machine comprises a first conveyor line, a second conveyor line and a paper separating conveyor line, wherein a paper pile separation mechanism is arranged between the first conveyor line and the second conveyor line, a paper pushing mechanism is arranged between the second conveyor line and the paper separating conveyor line, and a paper separating mechanism for separating single paperboards is arranged at the output end of the paper separating conveyor line; the paper separating mechanism comprises a paper stopping mechanism and a paper discharging mechanism, the paper stopping mechanism comprises a plurality of paper stopping assemblies, a first paper discharging gap is arranged between the lower end of the paper stopping assembly and the upper surface of the paper discharging conveyor line, the paper discharging mechanism comprises a lower support plate, and an upper adjusting member with adjustable height arranged on the upper side of the lower support plate, a second paper discharging gap through which only a single paperboard passes is formed between the upper adjusting member and the lower support plate; when the paper pile moves to the paper stopping mechanism and is blocked by the paper stopping assembly, the paperboard at the bottom of the paper pile passes through the first paper discharging gap and the second paper discharging gap in sequence under the friction force of the paper separating conveyor line and is then output.

[0005] By adopting the above technical solution: continuous paper piles are conveyed on the first conveyor line, and after being separated by the paper pile separation mechanism, the paper piles are transferred to the second conveyor line in sequence and move along the second conveyor line, and a group of paper piles on the second conveyor line are pushed to the paper separation conveyor line by the paper pushing mechanism, and the paper piles move along the paper separation conveyor line to the paper blocking assembly and are blocked, and the bottom paperboard of the paper pile passes through the first paper output gap under the friction of the paper separation conveyor line, and then passes through the second paper output gap and is stably separated. This paper separation system realizes automatic separation of paper piles and stable separation of single paperboards, and is stable to use and not prone to paper jams.

[0006] Preferably, the paper pile separation mechanism includes a roller conveyor line, and a plurality of paper pile conveyor belts arranged on the lower side of the roller conveyor line. The paper pile conveyor belt is arranged between adjacent rollers on the roller conveyor line. A lifting bracket is provided at the bottom of the paper pile conveyor belt. A first lifting power is provided at the bottom of the lifting bracket. A limit baffle with an adjustable distance is provided at the output end of the paper pile conveyor belt. The conveying direction of the paper pile conveyor belt is perpendicular to the conveying direction of the roller conveyor line. The input end of the paper pile conveyor belt is connected to the output end of the first conveyor line, and the output end of the roller conveyor line is connected to the input end of the second conveyor line. The first lifting power drives the paper pile conveyor belt on the lifting bracket to rise, and the paper pile smoothly enters the paper pile conveyor belt. Then the first lifting power decreases, so that the paper pile enters the roller conveyor line and is separated and transferred to the second conveyor line through the roller conveyor line.

[0007] Preferably, the output ends of the paper separation conveyor line and the second conveyor line are both arranged in a frame, and the paper pushing mechanism includes a push plate and a translation mechanism that drives the push plate to reciprocate between the second conveyor line and the paper separation conveyor line, and the output end of the second conveyor line and the side of the paper separation conveyor line are both provided with a first baffle plate that is vertically distributed with the push plate, and the frame is provided with a first adjusting mechanism for adjusting the position of the first baffle plate; a second baffle plate is provided on the side opposite to the first baffle plate on the paper separation conveyor line, and the frame is provided with a second adjusting mechanism for adjusting the position of the second baffle plate; when the paper pile on the second conveyor line is transported to contact with the first baffle plate, the translation mechanism drives the push plate to push the paper pile on the second conveyor line to the paper separation conveyor line.

[0008] Preferably, the paper stopper assembly comprises a connection seat, a stopper connected to the connection seat in an up-and-down sliding manner, and a pressure wheel provided at the front side of the lower end of the stopper and elastically abutting against the paper separation conveying line, the first paper discharge gap is formed between the lower end of the stopper and the paper separation conveying line, and the connection seat is provided with a height fine-tuning mechanism for adjusting the size of the first paper discharge gap. The stopper is used to block the paper pile, and the size of the first paper discharge gap can be adjusted by the height fine-tuning mechanism to meet the separation requirements of paperboards of different thicknesses.

[0009] Preferably, the height fine-adjustment mechanism includes a vertical screw rod rotatably connected to the connecting seat, a connecting block threadably connected to the vertical screw rod, the other end of the connecting block is fixedly connected to the stopper, and a preload spring is provided on the vertical screw rod.

[0010] Preferably, a paper pressing mechanism is provided at the rear side of the upper end of the stopper, and the paper pressing mechanism includes a pressing block and a paper pressing power for driving the pressing block to rise and fall; when the paper pile moves along the paper separation conveying line to be blocked at the paper stopper assembly, the paper pressing power drives the pressing block to descend and press on the uppermost end of the paper pile. The pressing block presses on the upper end of the paper pile, thereby increasing the friction between the lowest paperboard and the paper separation conveying line, and improving the stability of paper separation.

[0011] Preferably, the front end of the paper separation conveyor line is rotatably connected to the frame, and an angle adjustment mechanism for adjusting the inclination angle of the paper separation conveyor line is provided between the rear end of the paper separation conveyor line and the frame. By adjusting the angle of the paper separation conveyor line, the force between the paper separation conveyor line and the paperboard is changed to ensure stable paper separation.

[0012] Preferably, the angle adjustment mechanism includes a rotating sleeve rotatably connected to the rear end of the paper separation conveyor line, and a support rod fixed to the rotating sleeve, wherein the support rod is configured as a screw rod, and the lower end of the support rod is connected to the frame via a fastener.

[0013] Preferably, the upper surface of the paper separation conveyor line is configured as an arc surface that is high in the middle and low at both ends. The paperboard has a certain flexibility, and setting the paper separation conveyor line as an arc surface can increase the force between the paper separation conveyor line and the paperboard (the combined force of friction and thrust), thereby ensuring that the bottom paperboard can be stably separated and enter the first paper output gap.

[0014] Preferably, the paper separation conveyor line includes several groups of parallel paper separation conveyor line bodies, the paper separation conveyor line bodies include paper separation conveyor line brackets and paper separation conveyor belts, connecting rods are arranged between the paper separation conveyor line brackets, and a cleaning mechanism for cleaning the paper separation conveyor belts is arranged on the connecting rods; the cleaning mechanism includes a brush arranged on the lower side of the paper separation conveyor line, and the two ends of the brush are rotatably connected to the connecting rods through swing arms, and a power assembly for driving the swing arm to rotate is arranged on the lower side of the paper separation conveyor line; in a first state, the power assembly drives the swing arm to rotate downward so that the brush is separated from the paper separation conveyor belt; in a second state, the power assembly drives the swing arm to swing upward so that the brush contacts the surface of the paper separation conveyor belt. With the use of the paper separation conveyor belt, there will be paper scraps and powder on the surface of the paper separation conveyor belt, which will reduce the friction between the paper separation conveyor belt and the paperboard. The paper scraps and powder can be cleaned up regularly by cleaning, so that the friction between the paper separation conveyor belt and the paperboard remains stable.

[0015] Preferably, the rear end of the lower support plate is provided with a downwardly inclined guide plate, the rear end of the upper adjustment member is provided with a plurality of upwardly inclined guide members, and the upper adjustment member is connected with a second lifting power; the front end of the paper discharge mechanism is provided with a traction mechanism. The size of the second paper discharge gap can be adjusted by the second lifting power, and when a paper jam occurs, the upper adjustment member is driven to move upward by the second lifting power, so as to facilitate the removal of the jammed paperboard.

[0016] Preferably, the traction mechanism comprises two groups of traction rollers with equal rotation speed and opposite rotation direction; a pressure roller is provided at the front end of the traction mechanism, and the pressure roller is rotatably connected to the frame through a roller frame, and a handle is provided on the roller frame. The traction mechanism pulls the paperboard coming out of the second paper discharge gap to other conveyor belts.

[0017] Preferably, the thickness of a single paperboard is set to a, the distance between the front and rear ends of a single paperboard when it moves along the paper separation conveyor line is set to b, the height of the first paper discharge gap is set to h, the height of the second paper discharge gap is set to s, and the distance between the first paper discharge gap and the second paper discharge gap is set to L, wherein: a<h<2a, a≤s<h, L<b. By reasonably setting the size of the first paper discharge gap and the second paper discharge gap, it is ensured that the single paperboard can be stably separated.

[0018] Therefore, the present invention has the following beneficial effects: (1) the paper pile is automatically and continuously conveyed and separated, eliminating the need for manual handling; and (2) the separation of individual paperboards is stable and paper jams are not likely to occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A structural schematic diagram of the present invention.

[0020] Figure 2 It is a structural schematic diagram of the paper pile separation mechanism.

[0021] Figure 3 for Figure 2 Exploded diagram.

[0022] Figure 4 It is a structural schematic diagram of the paper separation conveyor line and paper separation mechanism.

[0023] Figure 5 for Figure 4 Top view of the .

[0024] Figure 6 for Figure 4 Exploded diagram.

[0025] Figure 7 It is a schematic diagram of the first adjustment mechanism and the lateral adjustment mechanism.

[0026] Figure 8 It is a schematic diagram of the state where the paper pile is blocked by the paper blocking mechanism.

[0027] Fig. 9 Schematic diagram of the paper separation mechanism.

[0028] Fig.10 This is an exploded view of the paper stop mechanism.

[0029] Fig.11 This is a structural diagram of the paper conveying line.

[0030] Fig.12 This is an exploded view of the paper separation conveyor line. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the scope of protection of the present invention.

[0032] It should be understood that, in this document, the expressions "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance, nor should they be understood as implicitly indicating the number of technical features indicated. Features defined as "first" or "second" may explicitly or implicitly indicate that at least one of the features is included.

[0033] like Figure 1-Figure 8 The paper feeding and separating system of a paper packing machine shown in the figure comprises a first conveying line 1, a second conveying line 2, and a paper separating conveying line 5. A paper pile separating mechanism 3 is provided between the first conveying line 1 and the second conveying line 2. A paper pushing mechanism 4 is provided between the second conveying line 2 and the paper separating conveying line 5. A paper separating mechanism 6 for separating a single paperboard 90 is provided at the output end of the paper separating conveying line 5. The paper separating mechanism 6 comprises a paper stopping mechanism 60 and a paper discharging mechanism 61. The paper stopping mechanism 60 comprises a plurality of paper stopping assemblies 600. The lower end of the paper stopping assembly 600 is connected to the upper surface of the paper separating conveying line 5. A first paper discharge gap 100 is provided between the two paper stacks, and the paper discharge mechanism 61 includes a lower support plate 610 and an upper adjusting member 611 with adjustable height provided on the upper side of the lower support plate 610, and a second paper discharge gap 101 for only a single paper board 90 to pass through is formed between the upper adjusting member 611 and the lower support plate 610; when the paper stack 9 moves to the paper blocking mechanism 60 and is blocked by the paper blocking assembly 600, the paper board 90 at the bottom of the paper stack passes through the first paper discharge gap 100 and the second paper discharge gap 101 in sequence under the friction force of the paper separation conveyor line 5 and is then output.

[0034] The thickness of a single paperboard 90 is set to a, the distance between the front and rear ends of the single paperboard 90 when moving along the paper separation conveyor line 5 is set to b, the height of the first paper discharge gap 100 is set to h, the height of the second paper discharge gap 101 is set to s, and the distance between the first paper discharge gap 100 and the second paper discharge gap 101 is set to L, wherein: a<h<2a, a≤s<h, L<b. In some embodiments, h=1.6a, s=1.2a, L=0.8b.

[0035] like Figure 2 and Figure 3As shown, the paper pile separation mechanism 3 includes a roller conveyor line 30, and a plurality of paper pile conveyor belts 31 arranged on the lower side of the roller conveyor line 30. The paper pile conveyor belt 31 is arranged between adjacent rollers on the roller conveyor line 30. A lifting bracket 32 ​​is provided at the bottom of the paper pile conveyor belt 31. A first lifting power 33 is provided at the bottom of the lifting bracket 32. A limit baffle 34 with an adjustable distance is provided at the output end of the paper pile conveyor belt 31. The conveying direction of the paper pile conveyor belt 31 is perpendicular to the conveying direction of the roller conveyor line 30. The input end of the paper pile conveyor belt 31 is connected to the output end of the first conveyor line 1, and the output end of the roller conveyor line 30 is connected to the input end of the second conveyor line 2.

[0036] In some embodiments, in order to make the whole more compact and occupy less space, the following settings are adopted: the first conveyor line 1, the second conveyor line 2, and the paper separation conveyor line 5 are distributed in a U shape, and the first conveyor line 1 and the paper separation conveyor line 5 are both arranged on the same side of the second conveyor line 2 and perpendicular to the second conveyor line 2; one end of the paper pile separation mechanism 3 is connected to the output end of the first conveyor line 1, and the other end of the paper pile separation mechanism 3 is connected to the input end of the second conveyor line 2.

[0037] The output ends of the paper separation conveyor line 5 and the second conveyor line 2 are both arranged in the frame 7, and 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 conveyor line 2 and the paper separation conveyor line 5. The output end of the second conveyor line 2 and the side of the paper separation conveyor line 5 are both provided with a first baffle 42 which is vertically distributed with the pushing plate 40, and the frame 7 is provided with a first adjusting mechanism 43 for adjusting the position of the first baffle 42; a second baffle 44 is provided on the side opposite to the first baffle 42 of the paper separation conveyor line 5, and the frame 7 is provided with a second adjusting mechanism 45 for adjusting the position of the second baffle 44; when the paper pile on the second conveyor line 2 is transported to contact with the first baffle 42, the translation mechanism 41 drives the pushing plate 40 to push the paper pile on the second conveyor line 2 to the paper separation conveyor line 5.

[0038] In some embodiments, the first adjustment mechanism adopts the following scheme: the first adjustment mechanism 43 includes two parallel first screw rods 430, a transmission screw rod 431 connecting the two first screw rods, one end of which is provided with a first handle 432 for driving the first screw rod to rotate, and the transmission screw rod 431 and the first screw rod are meshed and transmitted through a bevel gear 433; screw rod seats 420 are provided at both ends of the first baffle 42, and the first screw rod 430 passes through the screw rod seat 420 to form a threaded connection, and a slide rail 434 is provided on the frame 7 and is parallel to the first screw rod 430, and the side of the screw rod seat 420 is slidably connected to the slide rail through a slider 435. Fig. 9 As shown, the second adjustment mechanism 45 also adopts a screw rod and a handle to adjust the position of the second baffle 44.

[0039] like Figure 7 and Fig.10 As shown, the paper stopper assembly 600 includes a connection seat 601, a stopper 602 slidably connected to the connection seat 601, and a pressure wheel 603 disposed at the front side of the lower end of the stopper 602 and elastically abutting against the paper separation conveying line 5. A first paper discharge gap 100 is formed between the lower end of the stopper 602 and the paper separation conveying line 5. The connection seat 601 is provided with a height fine-tuning mechanism 62 for adjusting the size of the first paper discharge gap 100. The height fine-tuning mechanism 62 includes a vertical screw rod 620 rotatably connected to the connection seat 601, a connection block 621 threadedly connected to the vertical screw rod 620, the other end of the connection block 621 is fixedly connected to the stopper 602, and a preload spring 622 is provided on the vertical screw rod 620.

[0040] The pressure wheel 603 is rotatably connected to the stopper 602 via a connecting arm 604; a support block 605 is fixedly provided on the stopper 602 on the upper side of the pressure wheel 603; an elastic member 606 is provided between the support block 605 and the connecting arm 604 for driving the pressure wheel 603 to abut against the paper conveying line 5; an arc-shaped guide surface 607 is provided at the lower end of the stopper 602 and on the opposite side of the pressure wheel 603.

[0041] A paper pressing mechanism 64 is provided on the rear side of the upper end of the stopper 602, and the paper pressing mechanism 64 includes a pressing block 640 and a paper pressing power 641 for driving the pressing block to rise and fall; when the paper pile moves along the paper separation conveying line 5 to be blocked at the paper stopper assembly 600, the paper pressing power 641 drives the pressing block 640 to descend and press on the top of the paper pile.

[0042] In some embodiments, a transverse adjustment structure 63 for adjusting the transverse position of the paper stop assembly 600 is provided on the frame 7. The transverse adjustment structure 63 includes a transverse screw rod 630 and a transverse axis 631 distributed parallel to the transverse screw rod 630. The connecting seat 601 is slidably connected to the transverse axis 631. The transverse screw rod 630 passes through the connecting seat 601 to form a threaded connection. A second adjustment handle 632 is provided at one end of the transverse screw rod 630.

[0043] like Figure 8 , Fig.11 and Fig.12 As shown, the front end of the paper separation conveyor line 5 is rotatably connected to the frame 7, and an angle adjustment mechanism 50 for adjusting the inclination angle of the paper separation conveyor line 5 is provided between the rear end of the paper separation conveyor line 5 and the frame 7. The angle adjustment mechanism 50 includes a rotating sleeve 500 rotatably connected to the rear end of the paper separation conveyor line 5, and a support rod 501 fixed on the rotating sleeve 500. 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; the upper surface of the paper separation conveyor line 5 is configured as an arc surface with a high middle and low ends.

[0044] The paper separation conveyor line 5 includes a plurality of parallel paper separation conveyor line bodies 51, the paper separation conveyor line bodies 51 include paper separation conveyor line brackets 510 and paper separation conveyor belts 511, a connecting rod 512 is provided between the paper separation conveyor line brackets 510, and a cleaning mechanism 52 for cleaning the paper separation conveyor belts is provided on the connecting rod 512; the cleaning mechanism 52 includes a brush 520 arranged on the lower side of the paper separation conveyor line 5, both ends of the brush 520 are rotatably connected to the connecting rod 512 through a swing arm 521, and a power component 522 for driving the swing arm to rotate is provided on the lower side of the paper separation conveyor line 5; in the first state, the power component 522 drives the swing arm 521 to rotate downward so that the brush 520 is separated from the paper separation conveyor belt 511; in the second state, the power component 522 drives the swing arm 521 to swing upward so that the brush 520 contacts the surface of the paper separation conveyor belt 511.

[0045] 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 adjustment member 611 is provided with a plurality of upwardly inclined guide members 613. The upper adjustment member 611 is connected with a second lifting power 614, and the second lifting power adopts any one of a pneumatic cylinder, an electric cylinder, and an oil cylinder.

[0046] like Fig. 9 As shown, a traction mechanism 8 is provided at the front end of the paper discharge mechanism 61, and the traction mechanism 8 includes two groups of traction rollers 80 with equal rotation speeds and opposite directions; a pressure roller 81 is provided at the front end of the traction mechanism 8, and the pressure roller 81 is rotatably connected to the frame 7 through a roller frame 82, and a handle 83 is provided on the roller frame.

[0047] In conjunction with the accompanying drawings, the principle of the present invention is as follows: a continuous paper pile 9 is transported on a first conveyor line 1, and after being separated by a paper pile separation mechanism 3, the paper pile 9 is sequentially transferred to a second conveyor line 2 and moves along the second conveyor line, and a group of paper piles on the second conveyor line are pushed to a paper separation conveyor line 6 by a paper pushing mechanism 4, and the paper pile 9 moves along the paper separation conveyor line to a paper stop assembly 600 and is blocked, as shown in FIG. Figure 8 As shown, the bottom paperboard 90 of the paper pile passes through the first paper discharging gap 100 under the friction of the paper discharging conveyor line 6, and then passes through the second paper discharging gap 101 to be stably separated. By reasonably setting the first paper discharging gap 100 and the second paper discharging gap 101, paperboards of different thicknesses can be separated. This paper separation system realizes automatic separation of paper piles and stable separation of single paperboards, is stable to use, and is not prone to paper jams.

[0048] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by up, down, left, right, inside, outside, one end, the other end, etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of more clearly describing the technical solution of the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific orientation, and cannot be understood as a limitation of the present invention.

[0049] Although specific embodiments of the present invention are described in detail herein, they are provided for the purpose of explanation only and should not be considered to limit the scope of the present invention. Various substitutions, changes and modifications may be conceived without departing from the spirit and scope of the present invention.

Claims

1. A paper feeding and separating system for a paper packing machine, characterized in that: The invention comprises a first conveyor line (1), a second conveyor line (2), and a paper separation conveyor line (5); a paper pile separation mechanism (3) is provided between the first conveyor line (1) and the second conveyor line (2); a paper pushing mechanism (4) is provided between the second conveyor line (2) and the paper separation conveyor line (5); and a paper separation mechanism (6) for separating single paperboards (90) is provided at the output end of the paper separation conveyor line (5); The paper separation mechanism (6) comprises a paper stop mechanism (60) and a paper discharge mechanism (61); the paper stop mechanism (60) comprises a plurality of paper stop assemblies (600); a first paper discharge gap (100) is provided between the lower end of the paper stop assembly (600) and the upper surface of the paper separation conveying line (5); the paper discharge mechanism (61) comprises a lower support plate (610) and an upper adjustment member (611) which is arranged on the upper side of the lower support plate (610) and has an adjustable height; a second paper discharge gap (101) is formed between the upper adjustment member (611) and the lower support plate (610) for only a single paperboard (90) to pass through; When the paper pile (9) moves to the paper stop mechanism (60) and is stopped by the paper stop assembly (600), the paperboard (90) at the bottom of the paper pile passes through the first paper output gap (100) and the second paper output gap (101) in sequence under the action of the friction force of the paper separation conveying line (5) before being output.

2. A paper feeding and separating system for a paper packing machine according to claim 1, characterized in that: The paper pile separation mechanism (3) comprises a roller conveyor line (30), a plurality of paper pile conveyor belts (31) arranged at the lower side of the roller conveyor line (30), the paper pile conveyor belts (31) being arranged between adjacent rollers on the roller conveyor line (30), a lifting bracket (32) being provided at the bottom of the paper pile conveyor belt (31), a first lifting power (33) being provided at the bottom of the lifting bracket (32), and a limit baffle (34) with an adjustable distance being provided at the output end of the paper pile conveyor belt (31); The conveying direction of the paper pile conveyor belt (31) is perpendicular to the conveying direction of the roller conveyor line (30); the input end of the paper pile conveyor belt (31) is butted against the output end of the first conveyor line (1); and the output end of the roller conveyor line (30) is butted against the input end of the second conveyor line (2).

3. The paper feeding and separating system of a paper packing machine according to claim 1 is characterized in that: The output ends of the paper separation conveyor line (5) and the second conveyor line (2) are both arranged in the frame (7); the paper pushing mechanism (4) comprises a pushing plate (40) and a translation mechanism (41) for driving the pushing plate (40) to reciprocate between the second conveyor line (2) and the paper separation conveyor line (5); the output end of the second conveyor line (2) and the side surface of the paper separation conveyor line (5) are both provided with a first baffle (42) vertically distributed with the pushing plate (40); and the frame (7) is provided with a first adjustment mechanism (43) for adjusting the position of the first baffle (42); A second baffle (44) is provided on the paper separation conveying line (5) on the side opposite to the first baffle (42), and a second adjustment mechanism (45) for adjusting the position of the second baffle (44) is provided on the frame (7); When the paper pile on the second conveying line (2) is transported to contact with the first baffle (42), the translation mechanism (41) drives the push plate (40) to push the paper pile on the second conveying line (2) onto the paper separation conveying line (5).

4. A paper feeding and separating system for a paper packing machine according to claim 1, characterized in that: The paper stopper assembly (600) comprises a connecting seat (601), a stopper (602) connected to the connecting seat (601) in an upward and downward sliding manner, and a pressure wheel (603) arranged at the front side of the lower end of the stopper (602) and elastically abutting against the paper separation conveying line (5); the first paper output gap (100) is formed between the lower end of the stopper (602) and the paper separation conveying line (5); and a height fine-tuning mechanism (62) for adjusting the size of the first paper output gap (100) is provided on the connecting seat (601).

5. A paper feeding and separating system for a paper packing machine according to claim 4, characterized in that: A paper pressing mechanism (64) is provided on the rear side of the upper end of the stopper (602), and the paper pressing mechanism (64) comprises a pressing block (640) and a paper pressing power (641) for driving the pressing block to move up and down; when the paper pile moves along the paper separation conveying line (5) to the paper stopper assembly (600) and is blocked, the paper pressing power (641) drives the pressing block (640) to move down and press on the uppermost end of the paper pile.

6. A paper feeding and separating system for a paper packing machine according to claim 1, characterized in that: The front end of the paper separation conveyor line (5) is rotatably connected to the frame (7), and an angle adjustment mechanism (50) for adjusting the inclination angle of the paper separation conveyor line (5) is provided between the rear end of the paper separation conveyor line (5) and the frame (7).

7. A paper feeding and separating system for a paper packing machine according to claim 6, characterized in that: The angle adjustment mechanism (50) comprises a rotating sleeve (500) rotatably connected to the rear end of the paper separation conveying line (5), and a support rod (501) fixedly mounted on the rotating sleeve (500); 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) via a fastener (502).

8. A paper feeding and separating system for a paper packing machine according to claim 1 or 6, characterized in that: The upper surface of the paper separation conveying line (5) is configured as an arc surface which is high in the middle and low at both ends.

9. A paper feeding and separating system for a paper packing machine according to claim 1, characterized in that: The paper separation conveyor line (5) comprises a plurality of sets of paper separation conveyor line bodies (51) connected in parallel, the paper separation conveyor line bodies (51) comprising paper separation conveyor line brackets (510) and paper separation conveyor belts (511), connecting rods (512) are arranged between the paper separation conveyor line brackets (510), and a cleaning mechanism (52) for cleaning the paper separation conveyor belts is arranged on the connecting rods (512); The cleaning mechanism (52) comprises a brush (520) arranged at the lower side of the paper separation conveyor line (5), the two ends of the brush (520) being rotatably connected to the connecting rod (512) via a swing arm (521), and a power assembly (522) for driving the swing arm to rotate is provided at the lower side of the paper separation conveyor line (5); In a first state, the power component (522) drives the swing arm (521) to rotate downward so that the brush (520) is separated from the paper separation conveyor belt (511); in a second state, the power component (522) drives the swing arm (521) to swing upward so that the brush (520) contacts the surface of the paper separation conveyor belt (511).

10. The paper feeding and separating system of a paper packing machine according to claim 1, characterized in that: A downwardly inclined guide plate (612) is provided at the rear end of the lower support plate (610), a plurality of upwardly inclined guide members (613) are provided at the rear end of the upper adjustment member (611), and a second lifting power (614) is connected to the upper adjustment member (611); and a traction mechanism (8) is provided at the front end of the paper discharge mechanism (61).

11. A paper feeding and separating system for a paper packing machine according to claim 1, characterized in that: The thickness of a single paperboard (90) is set to a, the distance between the front and rear ends of the single paperboard (90) when it moves along the paper separation conveyor line (5) is set to b, the height of the first paper discharge gap (100) is set to h, the height of the second paper discharge gap (101) is set to s, and the distance between the first paper discharge gap (100) and the second paper discharge gap (101) is set to L, wherein: a<h<2a, a≤s<h, L<b.

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