CN217318300U

CN217318300U - Intermediate paper aligning mechanism of paper unloading machine

Info

Publication number: CN217318300U
Application number: CN202221131127.3U
Authority: CN
Inventors: 杨东波; 林兆江; 韩玉林; 池宝华; 宋学伟; 王宪伟
Original assignee: Yutian Uanchor Packaging Machinery Co ltd
Current assignee: Tangshan Yuanchuang Automation Technology Co ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2022-08-30
Anticipated expiration: 2032-05-12

Abstract

The utility model discloses a middle paper aligning mechanism of a paper unloading machine, which comprises a paper aligning plate, a connecting plate, a transverse rectangular pipe, a first cylinder, a bottom plate, a first linear guide rail, a second cylinder, a second linear guide rail and a longitudinal rectangular pipe; the linear guide rail I is fixed on the transverse rectangular pipe and extends along the length of the transverse rectangular pipe; a bottom plate is welded at one end of the longitudinal rectangular pipe, is assembled on the linear guide rail and can transversely slide along the linear guide rail I; one end of the first air cylinder is fixed on the bottom plate, the other end of the first air cylinder is fixed on the transverse rectangular pipe, and the first air cylinder can drive the bottom plate to transversely move along the first linear guide rail through extension; the second linear guide rail extends along the vertical direction, the longitudinal rectangular pipe is connected to the second linear guide rail, and the second linear guide rail can slide up and down relative to the longitudinal rectangular pipe; the paper aligning plate is fixed at the lower end of the second linear guide rail, and a piston rod of the second air cylinder is connected to the paper aligning plate. Will the utility model discloses use in full-automatic paper machine that unloads, can realize unloading paper machine work in, carry out neat paper to the both sides of paper heap before unloading paper, guarantee that the paper heap is neat.

Description

Intermediate paper aligning mechanism of paper unloading machine

Technical Field

The utility model relates to an unload paper machine technical field, concretely relates to unload neat paper mechanism in centre of paper machine.

Background

The full-automatic paper unloading machine is suitable for automatic stacking of different types of paper. Is widely applied to solving the problem of manual stacking after paper is cut. The paper has wide application range and high automation degree, and can greatly reduce the labor intensity of operators and improve the working efficiency. However, the existing fully automatic paper discharging machine still needs to be further improved in the aspects of running stability, safety and service life.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a neat paper mechanism in centre of unloading paper machine not enough to prior art.

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

a middle paper aligning mechanism of a paper discharging machine comprises a paper aligning plate, a connecting plate, a transverse rectangular pipe, a first air cylinder, a bottom plate, a first linear guide rail, a second air cylinder, a second linear guide rail, a longitudinal rectangular pipe and an oil pressure buffer; the first linear guide rail is fixed on the transverse rectangular pipe and extends along the length of the transverse rectangular pipe; a bottom plate is welded at one end of the longitudinal rectangular pipe, and the bottom plate is assembled on the linear guide rail and can transversely slide along the linear guide rail I; one end of the first air cylinder is fixed on the bottom plate, the other end of the first air cylinder is fixed on the transverse rectangular tube, and the first air cylinder can drive the bottom plate to transversely move along the first linear guide rail through extension and retraction; the second linear guide rail extends along the vertical direction, the longitudinal rectangular pipe is connected to the second linear guide rail, and the second linear guide rail can slide up and down relative to the longitudinal rectangular pipe; the paper aligning plate is fixed at the lower end of the linear guide rail II, and a piston rod of the cylinder II is connected to the paper aligning plate.

Further, the paper aligning plate comprises a right paper aligning plate and a left paper aligning plate which are fixed into a whole, the right paper aligning plate and the left paper aligning plate are parallel to each other, and the length direction of the right paper aligning plate and the length direction of the left paper aligning plate are parallel to the length direction of the longitudinal rectangular tube.

Furthermore, an oil pressure buffer is fixed on the longitudinal rectangular tube, and the telescopic end of the oil pressure buffer faces upwards; and the top of the second linear guide rail is provided with a convex part opposite to the telescopic end of the hydraulic buffer.

The beneficial effects of the utility model reside in that: will the utility model discloses use in full-automatic paper machine that unloads, can realize unloading paper machine work in, carry out neat paper to the both sides of paper heap before unloading paper, guarantee that the paper heap is neat.

Drawings

Fig. 1 is an overall schematic view of a full-automatic paper discharging machine in an embodiment of the present invention;

FIG. 2 is a schematic view of the frame and the main transmission mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic view of a paper unloading platform according to an embodiment of the present invention;

FIG. 4 is a schematic view of a driving mechanism of a paper unloading platform according to an embodiment of the present invention;

fig. 5 is a schematic view of an intermediate paper aligning mechanism in an embodiment of the present invention;

fig. 6 is a partial schematic view of an intermediate paper aligning mechanism in an embodiment of the present invention;

fig. 7 is a schematic view of a paper aligning laser positioning mechanism according to an embodiment of the present invention;

FIG. 8 is a schematic view of a lateral paper aligning mechanism in an embodiment of the present invention;

fig. 9 is a schematic view of a lifting connection mechanism in an embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and a detailed implementation manner and a specific operation process are provided, but the protection scope of the present invention is not limited to the present embodiment.

The embodiment provides an application of the middle paper aligning mechanism in a full-automatic paper discharging machine, as shown in fig. 1, the full-automatic paper discharging machine includes an electrical box 1, a paper discharging platform 2, a paper discharging platform transmission mechanism 3, a middle paper aligning mechanism 4, a frame and main transmission mechanism 5, and a side paper aligning mechanism 8; the paper unloading platform transmission mechanism 3 is fixed on the frame and the main transmission mechanism 5 and is connected with the paper unloading platform 2 and can drive the paper unloading platform 2 to move left and right; the middle paper aligning mechanism 4 and the side paper aligning mechanism 8 are respectively used for aligning the left side and the right side of the paper; the frame and the main transmission mechanism 5 can drive the paper unloading platform 2, the paper unloading platform transmission mechanism 3, the middle paper aligning mechanism 4 and the side paper aligning mechanism 8 to integrally move up and down; the paper unloading platform transmission mechanism 3, the middle paper aligning mechanism 4, the frame and main transmission mechanism 5 and the side paper aligning mechanism 8 are controlled and powered by the electrical box 1.

In this embodiment, the front side, the right side and the rear side of the full-automatic paper discharging machine are provided with guardrails 9.

In this embodiment, the full-automatic paper discharge machine further includes a paper alignment laser positioning mechanism 6, and the paper alignment laser positioning mechanism 6 is configured to position a center line between the middle paper alignment mechanism 4 and the side paper alignment mechanism 8; the paper aligning laser positioning mechanism 6 is controlled and powered by the electric appliance box 1.

In the embodiment, as shown in fig. 2, the main transmission mechanism 5 includes a frame 51, a main transmission linear guide rail 52(HGW35CA2R2090ZAC), a lifting frame 53, a main transmission gear motor 54(CV1500-3-SZ B-G1-LB), a main transmission ball screw 55(SFIR 05010-4N G C52045P 0), a main transmission arc tooth synchronous pulley 56, a main transmission arc tooth synchronous belt 57(712-8M-40), a main transmission nut 58, a high pressure fan 59(EHS-329), and a counterweight 510; the main transmission linear guide rail 52 is fixed to the frame 51 and extends in the up-down direction (in this embodiment, the main transmission linear guide rail 52 is disposed on both sides of the frame 51); the main transmission speed reducing motor 54 is fixed on the frame 51, an output shaft of the main transmission speed reducing motor 54 is coaxially fixed with the main transmission arc-tooth synchronous pulley 56, one end of the main transmission arc-tooth synchronous pulley 57 is sleeved on the output shaft of the main transmission arc-tooth synchronous pulley 56, and the other end is sleeved on the upper end of the main transmission ball screw 55; the upper end and the lower end of the main transmission ball screw 55 are respectively and rotatably connected with the frame 51; the main transmission nut 58 is matched with the main transmission ball screw 55 through a screw nut, and the lifting frame 53 is fixedly connected with the main transmission nut 58; the counterweight block 510 is fixed with the frame 51; the high pressure fan 59 is fixed to the frame 51. It should be noted that, the content in parentheses indicates the specific available product model, and the following description of the same form has the same meaning and is not repeated.

As shown in fig. 3, the paper unloading platform 2 comprises a guide rail 21, an air pipe 24, a side gauge 25, a compact air cylinder 27, a platform panel 28 and an air ball 29; the compact cylinder 27 (which may adopt a compact cylinder ACE25X125) is fixed to the side gauge 25, and is located above the platform panel 28, and is used for pressing the paper on the platform panel 28; a plurality of air beads 29 are uniformly embedded on the platform panel 28; the air pipe 24 is fixed to the paper unloading platform and has an air inlet and a plurality of air outlets (not shown), the air inlet is communicated with the high pressure fan 59, and the air outlets are uniformly distributed below the platform panel 28 and respectively correspond to the air beads 29 one by one.

The side gauge 25 is used for limiting and aligning the rear side of each bundle of sheets, and the air beads 29 are arranged so that each bundle of sheets can freely run on the platform panel.

It should be noted that the air ball is an existing product and is composed of a cylinder, a steel ball, a spring, a rubber cushion and the like. When the platform panel is in work, the high-pressure fan sends high-pressure gas into the air pipe and fills the air pipe, at the moment, the steel ball of the gas bead is embedded on the hole position corresponding to the platform panel in a sealing mode under the action of the spring and the high-pressure gas, and the steel ball does not have an upward moving space but has a downward moving space. When a pile of paper is placed on the platform panel, the paper is pressed on the steel ball, the steel ball can sink, so that a gap is formed between the steel ball and a hole site of the platform panel, high-pressure gas can overflow from the gap, and a layer of high-pressure gas film is arranged between the paper and the platform panel to support the pile of paper, thereby realizing the easy movement of the paper on the platform panel. When the paper leaves the air ball, the steel ball is restored to the original position due to the spring and the high-pressure air.

In this embodiment, the surface of the deck panel 28 is chrome-plated and polished. By chrome plating and polishing the surface of the platform panel 28, like a mirror surface, in combination with the arrangement of the air beads 29, each stack of paper can move more freely on the platform panel.

As shown in fig. 4, the paper discharging platform transmission mechanism 3 comprises a motor mounting plate 31, a circular arc tooth synchronous belt 32(740-5M-25), a circular arc tooth synchronous pulley 33, bearing

seats

34 and 35, a ball screw 36(SFSR02525-2.8DGC51607P0) and a speed reducing motor 37(CV4003SBG2LDV 0); a nut 26 (SFSR02525 nut can be adopted) is fixedly arranged at the rear side of the side gauge 25 of the paper unloading platform, and the nut 26 is matched with the ball screw 36 through a screw nut; the speed reducing motor 37 is fixed on the motor mounting plate 31; one end of the arc tooth synchronous belt 32 is sleeved on an output shaft of the speed reducing motor 37, and the other end of the arc tooth synchronous belt is sleeved on the arc tooth synchronous belt pulley 33; the two ends of the ball screw 36 are respectively mounted on the two bearing

seats

34 and 35, and one end of the ball screw is coaxially connected with the circular arc tooth synchronous pulley 33.

When the paper unloading platform 2 needs to be driven to move left and right, the speed reducing motor 37 is started, and an output shaft of the speed reducing motor 37 drives the arc tooth synchronous belt 32 to rotate, so that the arc tooth synchronous belt pulley 33 is driven to rotate, and finally the ball screw 37 is driven to rotate. The ball screw 37 and the nut 26 are matched to drive the whole paper unloading platform to move left and right.

In the present embodiment, as shown in fig. 5 to 6, the intermediate paper aligning mechanism 4 includes a paper aligning plate, a connecting plate 42, a transverse rectangular pipe 43, a first air cylinder 44(MAL-CM-40X25-S), a bottom plate 45, a first linear guide 46(HGH25CA250), a second air cylinder 47(MF32X250-S-CM), a second linear guide 48, a longitudinal rectangular pipe 49, and an oil pressure buffer 410(ACA 2030-3); the first linear guide 46 is fixed to the transverse rectangular tube 43 and extends along the length of the transverse rectangular tube 43; a bottom plate 45 is welded at one end of the longitudinal rectangular pipe 49, and the bottom plate 45 is assembled on the first linear guide rail 46 and can transversely slide along the first linear guide rail 46; one end of the first air cylinder 44 is fixed on the bottom plate 45, the other end of the first air cylinder is fixed on the transverse rectangular tube 43, and the first air cylinder 44 can drive the bottom plate 45 to transversely move along a first linear guide rail 46 in a telescopic mode; the second linear guide rail 48 extends along the vertical direction, the longitudinal rectangular tube 49 is connected to the second linear guide rail 48, and the second linear guide rail 48 can slide up and down relative to the longitudinal rectangular tube 49; the paper aligning plate is fixed at the lower end of the second linear guide rail 48, and a piston rod of the second air cylinder 47 is connected to the paper aligning plate.

In this embodiment, the sheet aligning plate includes a right sheet aligning plate 41 and a left sheet aligning plate 411 fixed as one body, and the right sheet aligning plate 41 and the left sheet aligning plate 411 are parallel to each other and the length direction thereof is parallel to the length direction of the longitudinal rectangular tube.

In this embodiment, an oil buffer 410 is fixed on the longitudinal rectangular tube 49, and the telescopic end of the oil buffer 410 faces upward; the top of the second linear guide rail 48 is provided with a convex part opposite to the telescopic end position of the hydraulic buffer 410. When the two linear rails move downwards relative to the longitudinal rectangular pipe 49, the convex parts of the two linear rails contact with the telescopic ends of the hydraulic buffers 410 when moving to the position of the hydraulic buffers 410, at the moment, the two linear rails continue to move downwards to generate pressure on the telescopic ends of the hydraulic buffers 410, and the hydraulic buffers 410 play a role in limiting and buffering the downward movement of the two linear rails together with the paper aligning plates.

The principle of the middle paper aligning mechanism is as follows: when a platform panel loaded with a stack of paper to be unloaded needs to move rightwards to a position between the middle paper aligning mechanism and the side paper aligning mechanism, the paper aligning plate is driven to lift upwards by the second air cylinder 47, and at the moment, the second linear guide rail 48 slides upwards relative to the longitudinal rectangular pipe 49 under the driving of the paper aligning plate, so that the paper aligning plate can stably and smoothly move upwards. After the paper aligning plate is lifted upwards, the platform panel is driven to move rightwards to a specified position through the paper unloading platform transmission mechanism, and then the paper aligning plate is driven to move downwards by the second air cylinder 47. When the left sides of the paper sheets need to be aligned, the first control cylinder 44 stretches and retracts to drive the longitudinal rectangular pipe 49 to move left and right together with the paper aligning plate, the left sides of the piles of paper sheets on the platform panel are flapped, and the left sides of the paper sheets are aligned.

In the embodiment, as shown in fig. 7, the paper aligning laser positioning mechanism 6 comprises a synchronous belt 61(591-3M-09), a linear laser 63, an expansion link 65, a positioning linear module 66(HPV7-500), a toothed belt pulley 67 and a servo speed reduction motor 68 (servo 60ST-M01330+ speed reducer ZAF-060-7-K7-14); one end of the synchronous belt 61 is in transmission connection with the servo speed reducing motor 68, and the other end of the synchronous belt is sleeved on the toothed belt wheel 67; the toothed belt wheel 67 is coaxially fixed with the lead screw of the positioning linear module 66 and is used for driving the slide block of the positioning linear module 66 to move through the lead screw of the positioning linear module 66; one end of the telescopic rod 65 is connected to the sliding block of the positioning linear module 66, and the other end of the telescopic rod is connected to the linear laser 63; the line laser 63 is used for emitting line laser downward.

When the paper aligning laser positioning mechanism 6 works, the servo speed reducing motor 68 is started, an output shaft of the servo speed reducing motor 68 drives the toothed belt wheel 67 to rotate through the synchronous belt 61, so that a lead screw of the positioning linear module 66 is driven to rotate, a sliding block of the positioning linear module 66 is driven to slide, the telescopic rod 65 is finally driven to move left and right, the position of the linear laser is adjusted to the middle line position between the middle paper aligning mechanism and the side paper aligning mechanism, linear laser emitted downwards by the linear laser indicates the middle line position between the middle paper aligning mechanism and the side paper aligning mechanism, a worker places the paper stack tray 10 for receiving a detached paper stack below the middle paper aligning mechanism and the side paper aligning mechanism, and the middle line of the paper stack tray 10 corresponds to the linear laser position of the linear laser.

The side paper aligning mechanism 8, as shown in fig. 8, includes a side paper aligning plate 81, a first side paper aligning slider 82, a linear bearing 83(LBP162430), a side paper aligning guide rail 84, a side paper aligning base plate 85, a side paper aligning connecting plate 87, a second side paper aligning slider 88(HGH25CA), and a side paper aligning cylinder 89(SC-40 × 25-S); the side paper aligning connecting plate 87 is fixed at one end of the side paper aligning bottom plate 85, and the side paper aligning sliding block II 88 is fixed at the bottom of the side paper aligning connecting plate 87; the side paper aligning air cylinder 89 is connected to the side paper aligning bottom plate 85 and can drive the side paper aligning bottom plate 85 to move left and right; the side paper aligning guide rail 84 is fixed on the side paper aligning bottom plate 85 and extends along the up-down direction, and the side paper aligning sliding block I82 is assembled on the side paper aligning guide rail 84 in a manner of being capable of sliding up and down through a linear bearing 83; the side paper aligning plate 81 is positioned at the left side of the side paper aligning bottom plate 85, and the right side of the side paper aligning plate is fixedly connected with a side paper aligning sliding block I82.

In the side paper aligning mechanism, the side paper aligning mechanism can be driven to move to a designated position integrally by a large margin through the left-right sliding of the side paper aligning sliding block II, and after the side paper aligning mechanism moves to the designated position, the side paper aligning plate can be pushed to move back and forth by the side paper aligning cylinder 89, so that the right side of paper is aligned.

In this embodiment, the side paper aligning mechanism 8 further includes a travel switch 86(TZ-8108), and the travel switch 86 is connected to the left side of the second side paper aligning slider 88 and is located above the side paper aligning plate. When the frame and the active connecting mechanism drive the side paper aligning mechanism to integrally move downwards, if the side paper aligning plate touches the uppermost part of the paper stack, under the matching of the first side paper aligning sliding block and the linear side paper aligning guide rail, the side paper aligning plate slides upwards until the travel switch is touched to stop, and at the moment, the travel switch signal is utilized to control the side paper aligning mechanism to stop moving downwards. And then, the side paper aligning cylinder drives the side paper aligning bottom plate to move backwards, the side paper aligning plate moves downwards to a specified position after leaving the position above the paper stack, and the side paper aligning cylinder drives the side paper aligning bottom plate to move forwards and backwards again, so that the aim of aligning the right side of the paper stack is fulfilled.

In this embodiment, as shown in fig. 1, the full-automatic paper discharging machine further includes a lifting connection mechanism 7, which is connected to the frame and the main transmission mechanism 5 and can be driven by the frame and the main transmission mechanism 5 to move up and down; the paper unloading platform 2, the paper aligning laser positioning mechanism 6, the middle paper aligning positioning mechanism 4 and the side paper aligning positioning mechanism 8 are all connected with the lifting connection mechanism, and the machine frame and the main transmission mechanism drive the paper unloading platform 2, the paper aligning laser positioning mechanism 6, the middle paper aligning positioning mechanism 4 and the side paper aligning positioning mechanism 8 to integrally lift and move through the lifting connection mechanism.

As shown in fig. 9, the lifting connection mechanism 7 includes a lifting connection transverse moment pipe 73, a sliding plate 75 and a lifting slider 77(HGW35 CA); the sliding plate 75 is fixed at the rear side of the lifting connection transverse moment tube 73, a lifting slider 77 is arranged on the sliding plate 75, the lifting slider 77 can be fixed on the main transmission linear guide rail 52 of the rack and main transmission mechanism 5 in a vertical sliding manner (corresponding to the rack and main transmission mechanism 5, in this embodiment, two opposite sliding plates 75 are also arranged, and the lifting slider 77 is arranged at one opposite side of each of the two sliding plates 75 and respectively assembled on the main transmission linear guide rails 52 at two sides of the rack and main transmission mechanism 5 in a sliding manner); the lifting connecting transverse rectangular pipe 73 is fixedly connected with the lifting frame 53.

When the frame and the main transmission mechanism drive the lifting connection mechanism to move up and down, the main transmission speed reducing motor 54 is started, the main transmission speed reducing motor 54 drives the main transmission arc-tooth synchronous belt pulley 56 to rotate, the main transmission arc-tooth synchronous belt pulley 56 drives the main transmission ball screw 55 to rotate through the main transmission arc-tooth synchronous belt 57, and therefore the lifting frame 53 is driven by the main transmission nut 58 to move up and down together with the lifting connection mechanism. In the up-and-down movement process of the lifting connection mechanism, the lifting slide blocks 77 on the two slide plates 75 slide along the main transmission linear guide rail 52, so that the movement of the lifting connection mechanism is guided and the smooth movement of the lifting connection mechanism is ensured.

In this embodiment, the lifting connection mechanism further comprises a lifting connection longitudinal rectangular pipe 74, a first horizontal linear guide 715 and a bolt-type track roller 713(CF12 BUU); the first horizontal linear guide rail 715 is arranged on the front side of the lifting connection transverse rectangular pipe 73 and extends along the length direction of the lifting connection transverse rectangular pipe 73; the rear end of the lifting connection longitudinal rectangular pipe 74 is vertically welded and fixed on the lifting connection transverse rectangular pipe 73, and a plurality of bolt-type track rollers 713 are arranged at the front end of the lifting connection longitudinal rectangular pipe 74 through a support beam 714 and are arranged in an upper row and a lower row; the paper discharging platform 2 further comprises a guide rail 21 and a slider 22 (an HGH25CA slider can be adopted), the slider 22 is fixed on the rear side of the side gauge 25 through a connecting plate 23, and the slider 22 is slidably assembled on the first horizontal linear guide rail 715; the guide rail 21 is provided on the inner side of the front side of the platform panel 28, and is slidably sandwiched between the upper and lower rows of bolt-type track rollers 713. Through the arrangement, the platform panel can slide more smoothly, and meanwhile, when the lifting connecting mechanism is driven to lift by the rack and the main transmission mechanism, the lifting connecting mechanism can drive the whole paper unloading platform to lift together.

Further, in this embodiment, the lifting connection mechanism further includes a support bracket 71 and a baffle 72, one side of the support bracket 71 is fixed to one side of the lifting connection longitudinal rectangular pipe 74, the baffle 72 is connected to the other side of the support bracket 71 in a vertically slidable manner, and a detection switch (not shown) is disposed on an upper portion of one side of the baffle 72 close to the support bracket 71. When the frame and the main transmission mechanism drive the lifting connection mechanism to move downwards, if the baffle plate 72 touches a foreign object below, the baffle plate can move upwards relative to the support bracket 71, and trigger the detection switch at the inner side of the baffle plate 72, and the frame and the main transmission mechanism are controlled by signals of the detection switch to stop the lifting connection mechanism to move downwards continuously, so that the protection effect is achieved.

Further, in the present embodiment, a correlation photoelectric device 712 (a crown correlation photoelectric device) is disposed on the support beam 714. As shown in fig. 9, the pair of opposed light beams 712 is a pair, when the elevating connection mechanism moves downward, if there is a foreign object below, the light of the opposed light beams 712 is blocked, and a signal is triggered, by which the elevating connection mechanism can be controlled to stop moving downward continuously, so as to protect the platform panel above.

In this embodiment, the paper aligning laser positioning mechanism further includes a supporting plate 64, one end of the supporting plate 64 is fixed to the positioning linear module 66, and the other end is fixed to the sliding plate 75. Through the connection of the supporting plate 64 and the sliding plate 75, when the lifting connection mechanism is driven to lift by the frame and the main transmission mechanism, the lifting connection mechanism can drive the whole paper aligning laser positioning mechanism to lift together.

In this embodiment, the middle aligning mechanism 4 further includes a connecting plate 42, and the connecting plate 42 is fixedly connected to the transverse rectangular pipe 43 and the sliding plate 75 respectively. Through the fixed connection between the connecting plate 42 and the sliding plate 75, the frame and the main rotating mechanism can drive the middle paper aligning mechanism 4 to integrally lift up and down when the lifting connecting mechanism is driven to lift up and down.

In this embodiment, the lifting connection mechanism 7 further includes a second horizontal linear guide 76(HGH25CA4R26980ZA), a driving timing belt 79(435-5M-20), a driving timing pulley 710, and a horizontal lead screw 711; the second horizontal linear guide rail 76 is arranged at the top of the lifting connection transverse rectangular pipe 73, the positioning linear module 66 is positioned above and parallel to the lifting connection transverse rectangular pipe 73, the servo speed reducing motor 68 is fixed at one end of the lifting connection transverse rectangular pipe 73, one end of the driving synchronous belt 79 is sleeved on an output shaft of the servo speed reducing motor 68, the other end of the driving synchronous belt 79 is sleeved on the driving synchronous belt pulley 710, the driving synchronous belt pulley 710 is coaxially fixed with the horizontal lead screw 711, and the second horizontal linear guide rail 76 is driven by the horizontal lead screw 711; the lower end of the synchronous belt 61 is sleeved on the driving synchronous belt pulley 710, and the upper end is sleeved on the toothed belt pulley 67; the second side paper aligning sliding block 88 is slidably assembled on the second horizontal linear guide rail 76 and can slide along the second horizontal linear guide rail 76 under the driving of the horizontal lead screw 711; the pitch of the horizontal screw 711 is twice the pitch of the screw on the positioning linear module 66.

Through the structure, the side paper aligning mechanism and the paper aligning laser positioning mechanism are driven by the same servo speed reducing motor 68, the servo speed reducing motor 68 drives the driving synchronous belt pulley 710 to rotate through the driving synchronous belt 79, the driving synchronous belt pulley 710 simultaneously drives the synchronous belt 61 and the horizontal lead screw 711 to rotate, and the synchronous belt 61 drives the toothed belt pulley 67 to rotate. Under the drive of the horizontal lead screw 711, the second side paper aligning slide block 88 moves along the second horizontal linear guide rail 76, so that the whole side paper aligning mechanism is driven to reach a specified position.

Based on the above mechanism, when the paper aligning laser positioning mechanism is initialized, the synchronous belt 61 is firstly put down from the toothed belt wheel 67, and then the distance between the middle paper aligning mechanism and the side paper aligning mechanism is adjusted according to the size of the paper of the discharged paper stack. And then, a power supply of the linear laser is switched on, the linear laser emits a downward linear light source, the linear light source emitted by the linear laser is independently adjusted to vertically irradiate the linear light source between the middle paper aligning mechanism and the side paper aligning mechanism, then the linear laser is fixed on the telescopic rod, and the synchronous belt is hung on the toothed belt wheel again.

In operation, since the pitch of the horizontal lead screw 711 is exactly twice the pitch of the lead screw of the positioning linear module 66, the stroke of the side aligning mechanism is always twice the stroke of the inline laser although the aligning laser positioning mechanism and the side aligning mechanism are driven by the same motor. Finally, when the side paper aligning structure reaches any position, the linear light beam output by the linear laser is always positioned at the center line position between the middle paper aligning mechanism and the side paper aligning mechanism. Therefore, an operator can easily place the paper stack tray 10, and the discharged paper can be ensured to just fall in the center of the paper stack tray only by superposing the middle line of the paper stack tray 10 and the linear light beam.

When the paper is unloaded, the paper stack to be unloaded is placed on a platform panel of a paper unloading platform, then the paper is aligned between the middle paper aligning mechanism and the side paper aligning mechanism when the platform panel is moved by the paper unloading platform transmission mechanism, the left side and the right side of the paper stack on the platform panel are aligned with paper by the middle paper aligning mechanism and the side paper aligning mechanism, the paper stack is lifted by the automatic machine at the moment, the platform panel is moved leftwards to be separated, and finally the paper stack is unloaded onto a paper stack tray.

Various corresponding changes and modifications can be made by those skilled in the art according to the above technical solutions and concepts, and all such changes and modifications should be included in the protection scope of the present invention.

Claims

1. A middle paper aligning mechanism of a paper unloading machine is characterized by comprising paper aligning plates, connecting plates, a transverse rectangular pipe, a first air cylinder, a bottom plate, a first linear guide rail, a second air cylinder, a second linear guide rail and a longitudinal rectangular pipe; the first linear guide rail is fixed on the transverse rectangular pipe and extends along the length of the transverse rectangular pipe; a bottom plate is welded at one end of the longitudinal rectangular pipe, and the bottom plate is assembled on the linear guide rail and can transversely slide along the linear guide rail I; one end of the first air cylinder is fixed on the bottom plate, the other end of the first air cylinder is fixed on the transverse rectangular pipe, and the first air cylinder can drive the bottom plate to transversely move along the first linear guide rail through extension and retraction; the second linear guide rail extends along the vertical direction, the longitudinal rectangular pipe is connected to the second linear guide rail, and the second linear guide rail can slide up and down relative to the longitudinal rectangular pipe; the paper aligning plate is fixed at the lower end of the linear guide rail II, and a piston rod of the cylinder II is connected to the paper aligning plate.

2. The intermediate paper aligning mechanism of a paper discharging machine according to claim 1, characterized in that the paper aligning plates comprise a right paper aligning plate and a left paper aligning plate which are fixed as a whole, and the right paper aligning plate and the left paper aligning plate are parallel to each other and the length direction thereof is parallel to the length direction of the longitudinal rectangular pipe.

3. The intermediate paper aligning mechanism of a paper discharging machine according to claim 1, characterized in that an oil pressure buffer is fixed on the longitudinal rectangular pipe, and the telescopic end of the oil pressure buffer is upward; and the top of the linear guide rail II is provided with a convex part opposite to the telescopic end position of the hydraulic buffer.