A high-speed folding machine

Abstract

The invention discloses a high-speed folding machine, wherein a paper baffle is arranged above the inner end edge of a paper stacking platform, the paper baffle and the paper stacking platform are arranged perpendicular to each other, a paper suction mechanism comprises a negative suction roller, a control shaft is arranged in a frame, a plurality of air jet holes are arranged at the bottom of the paper baffle, a plurality of air suction holes are arranged on the negative suction roller, an air blowing propeller is arranged between the paper baffle and the negative suction roller, the air blowing propeller is arranged with air blowing holes, a first control valve for controlling the air suction time of the air suction holes, a second control valve for controlling the air jet time of the air jet holes and a third control valve for controlling the air blowing time of the air blowing holes are arranged on the control shaft; the advantage is that the paper at the bottom layer can be sucked into the paper feeding mechanism quickly and stably, the running stroke is shortened, the first control valve, the second control valve and the third control valve on the control shaft respectively ensure the orderly operation of the air suction holes, the air jet holes and the air blowing holes, thereby ensuring that the paper is sucked into the paper feeding mechanism quickly and stably, and finally improving the working efficiency of the paper folding machine.

Description

Technical Field

[0001] The invention relates to a paper folding device, in particular to a high-speed folding machine. Background Art

[0002] At present, in the process of automated cartoning of medicines, it is generally necessary to put the folded instructions into the packaging box. Using a paper folding machine to fold the instructions is a necessary step in the automated cartoning of medicines. In the automated cartoning process, the folding speed of the paper folding machine must match the speed of the cartoning machine. With the continuous development of domestic cartoning machine technology, the packaging speed of the cartoning machine has gradually developed from the original 100 boxes / minute to 200 boxes / minute, 300 boxes / minute, 400 boxes / minute, and even 500 boxes / minute. However, the original paper folding machine has the defects of slow folding speed and easy failure, such as paper suction failure, paper jam, air leakage and other problems.

[0003] The Chinese patent is a utility model patent 201720881786.1, which discloses a high-speed paper folding machine, including a frame and a paper stacking table for placing the paper to be folded. The frame is provided with a paper separation mechanism, an air suction mechanism, a paper feeding mechanism and a paper folding mechanism from top to bottom. The paper separation mechanism includes a blowing shaft, a paper separation hook and an air blowing mechanism, which is used to separate the bottom paper to be folded from the upper paper to be folded. The air suction mechanism includes an air suction shaft and a plurality of hollow air suction rockers fixed on the air suction shaft. The free end of the air suction rocker is provided with an opening facing upward. The suction nozzle is used to suck the paper to be folded, and the paper feeding mechanism is located below the suction nozzle, which is used to feed the paper to be folded into the paper folding mechanism. The paper folding mechanism is used to fold the paper to be folded in half for multiple times and output it from the frame. Although the paper folding machine with this structure runs relatively stably and can ensure that only one sheet of paper is fed in at a time, the paper is separated, and the paper folding is performed, its paper suction and separation mechanism and air suction mechanism are relatively complex and scattered, and the coordination time between the mechanisms is relatively long. Therefore, how to ensure that the paper enters the paper feeding mechanism quickly and stably needs further improvement. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a high-speed folding machine with high time control accuracy and compact structure. The high-speed folding machine with such structure can ensure that the paper is stably and quickly sucked into the paper feeding mechanism.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a high-speed folding machine, including a frame, a paper stacking platform and a paper suction mechanism, a paper baffle is arranged above the inner end edge of the paper stacking platform, the paper baffle and the paper stacking platform are arranged perpendicular to each other, the paper suction mechanism includes a negative suction roller, a control shaft is arranged in the frame, a plurality of air jet holes for separating the bottom layer of paper from the upper layer of paper are arranged at the bottom of the paper baffle, a plurality of air suction holes for sucking the bottom layer of paper are arranged on the negative suction roller, an air blowing propeller is arranged between the paper baffle and the negative suction roller, the air blowing propeller is provided with air blowing holes for separating the bottom layer of paper from the upper layer of paper, and a first control valve for controlling the air suction time of the air suction hole, a second control valve for controlling the air jet time of the air jet hole and a third control valve for controlling the air blowing time of the air blowing hole are arranged on the control shaft.

[0006] The first control valve comprises a first valve body, an air intake segmented ring and a first valve cover which are sequentially penetrated on the control shaft, an air intake ring protruding outward is arranged on the inner side surface of the first valve body, three first air holes are arranged on the air intake ring at intervals, the centers of the three first air holes are located on the same arc, a first arc-shaped groove is arranged on the inner wall of the air intake segmented ring opposite to the air intake segmented ring, a plurality of first positioning holes are arranged on the air intake segmented ring, a plurality of first positioning posts are arranged on the inner wall of the first valve cover opposite to the air intake segmented ring, the position and number of the first positioning posts correspond to the first positioning holes, and the first positioning posts are inserted into the first positioning holes. The first valve cover is fixed to the control shaft by screws, a first compression spring is arranged between the first valve cover and the suction segmented ring, a first air outlet for connecting to a negative pressure gas source is arranged on the front side wall of the first valve body, a first air inlet for connecting to the suction hole is arranged on the rear side wall of the first valve body, the first air outlet and the first air inlet are respectively connected to the first air hole, when the control shaft rotates, the first valve cover drives the suction segmented ring to rotate, so that the first arc groove covers the three first air holes in sequence, when the first arc groove is in the period of simultaneously covering two adjacent first air holes, the suction hole on the negative suction roller sucks paper. It is easy to realize by adopting a mechanical linkage setting.

[0007] The second control valve comprises a second valve cover, a blowing segmented ring and a second valve body which are sequentially penetrated on the control shaft, an outwardly protruding blowing ring is arranged on the inner wall of the second valve body opposite to the blowing segmented ring, three second air holes are arranged on the blowing ring at intervals, the centers of the three second air holes are located on the same arc, a second arc-shaped groove is arranged on the inner wall of the blowing segmented ring opposite to the blowing ring, a plurality of second positioning holes are arranged on the blowing segmented ring, a plurality of second positioning posts are arranged on the inner wall of the second valve cover opposite to the blowing segmented ring, the position and number of the second positioning posts correspond to the second positioning holes, and the second positioning posts are inserted into the corresponding The second valve cover is fixed to the control shaft by screws, a second compression spring is arranged between the second valve cover and the blowing segmented ring, a second air inlet for connecting to the blowing air source is arranged on the front side wall of the second valve body, a second air outlet for connecting to the blowing hole is arranged on the rear side wall of the second valve body, the second air inlet and the second air outlet are respectively connected to the second air hole, when the control shaft rotates, the second valve cover drives the blowing segmented ring to rotate, so that the second arc groove covers the second air hole in sequence, when the second arc groove is in the period of simultaneously covering two adjacent second air holes, the blowing hole of the blowing propeller blows paper. It is easy to realize by adopting mechanical linkage setting.

[0008] The third control valve comprises an air jet segment ring and a third valve cover, an air jet ring protruding outward is arranged on the inner wall of the second valve body opposite to the air jet segment ring, three third air holes are arranged at intervals on the air jet ring, the centers of the three third air holes are located on the same arc, a third arc-shaped groove is arranged on the inner wall of the air jet segment ring opposite to the air jet ring, a plurality of third positioning holes are arranged on the surface opposite to the air jet segment ring and the third valve cover, a plurality of third positioning posts are arranged at intervals on the inner wall of the third valve cover, the number and position of the third positioning posts correspond to the third positioning holes, the third positioning posts are inserted into the corresponding third positioning holes, and the third valve cover is fixed to the On the control shaft, the third valve cover presses the jet segment ring against the second valve body, a plurality of third compression springs are arranged between the third valve cover and the jet segment ring, a third air hole for connecting to the blowing air source is arranged on the front side wall of the second valve body, a third air outlet for connecting to the jet hole is arranged on the rear side wall of the second valve body, the third air inlet and the third air outlet are respectively connected to the third air hole, when the control shaft rotates, the third valve cover drives the jet segment ring to rotate, so that the third arc groove covers the third air hole in sequence, when the third arc groove is in the period of simultaneously covering two adjacent third air holes, the paper stopper generates jet. The separation between the bottom layer of paper and the upper layer of paper is realized by adopting a mechanical linkage setting, which is easy to realize.

[0009] The negative suction roller includes a hollow suction pipe, one end of which is closed, and the other end of which is connected to the first air inlet through an air pipe. A plurality of first paper suction holes are arranged at intervals on the suction pipe, and a plurality of suction rings and paper pressing bearings are sleeved on the suction pipe. The paper pressing bearing is arranged between two adjacent suction rings, and a second paper suction hole is arranged on the suction ring. The second paper suction holes and the first paper suction holes are arranged one by one opposite to each other, and each group of the first paper suction holes and the second paper suction holes arranged opposite to each other constitutes the suction holes.

[0010] The suction ring is provided with an opening and closing assembly of the second paper suction hole, the opening and closing assembly includes a ring cover and a locking assembly, the ring cover is sleeved on the suction ring, the ring cover is provided with a third paper suction hole and a locking hole, the third paper suction hole corresponds to the second paper suction hole, the locking assembly is arranged between the ring cover and the paper suction ring, the locking assembly includes a steel ball and a reset spring, a limiting hole is provided on the suction ring, the steel ball is placed in the limiting hole, the reset spring is arranged between the steel ball and the limiting hole, the limiting hole is located below the second paper suction hole, the diameters of the third paper suction hole and the locking hole are smaller than the diameter of the steel ball, the ring cover is rotated to make the locking hole clamp the steel ball, at this time, the second paper suction hole normally absorbs paper; the ring cover is continued to be rotated to make the third paper suction hole clamp the steel ball, the ring cover covers the second paper suction hole, and the outer diameter of the paper pressing bearing is larger than the outer diameter of the ring cover.

[0011] In this structure, each second paper suction hole can be opened or closed by manually rotating the ring cover. According to the paper width of the instruction manual to be folded, the second paper suction holes that are not covered by the edges of the instruction manual can be closed to ensure that the second paper suction holes covered under the instruction manual can provide sufficient suction to smoothly suck the instruction manual down.

[0012] A paper folding mechanism and an output mechanism are arranged in the frame, a paper folding transmission mechanism is arranged outside the frame, the paper folding mechanism includes six paper folding rubber rollers and a paper folding board, a corresponding paper clamping distance is maintained between two adjacent paper folding rubber rollers, the axis connecting line of three adjacent paper folding rubber rollers is V-shaped, the paper folding board is arranged between the two paper folding rubber rollers forming the V-shape, the output mechanism includes four conveying rubber rollers, the conveying rubber rollers are arranged in an upper and lower staggered manner below the paper folding rubber rollers, the paper folding transmission mechanism drives the paper folding rubber rollers to rotate to realize paper folding, and the paper folding transmission mechanism drives the conveying rubber rollers to rotate to send the folded instruction manual finished product out of the frame.

[0013] A paper feeding pressure wheel shaft is arranged in the frame, and the paper folding transmission mechanism includes a first synchronous belt, a second synchronous belt, a first tensioning wheel, a second tensioning wheel, a third tensioning wheel, a fourth tensioning wheel, a fifth tensioning wheel, a first synchronous pulley, a second synchronous pulley, a third synchronous pulley, a fourth synchronous pulley fixed at one end of each paper folding rubber roller, and a fifth synchronous pulley fixed at one end of each conveying rubber roller, the first synchronous pulley is installed at one end of the paper feeding pressure wheel shaft, the frame is also provided with a rotating shaft, the second synchronous pulley and the third synchronous pulley are arranged on the rotating shaft in sequence, the first synchronous pulley is connected to the second synchronous pulley through the first synchronous belt, and the first tensioning wheel is rotatably connected to the first fixed shaft through the first fixed shaft. On one side of the three synchronous pulleys, the second tensioning wheel is rotatably connected to the lower side of the first tensioning wheel through the second fixed shaft, the third tensioning wheel is rotatably connected to the oblique lower side of the fifth synchronous pulley located at the bottom through the third fixed shaft, the fourth tensioning wheel is rotatably connected to the other side of the frame through the fourth fixed shaft, the third tensioning wheel and the fourth tensioning wheel are arranged oppositely, the fifth tensioning wheel is rotatably connected to the oblique side of the first synchronous pulley through the fifth fixed shaft, the second synchronous belt passes through the first tensioning wheel, the second tensioning wheel, the fourth synchronous pulley, the fifth synchronous pulley, the third tensioning wheel, the fourth tensioning wheel, the fifth tensioning wheel in sequence and is sleeved on the third synchronous pulley. The belt and pulley transmission is adopted, the structure is simple and more silent.

[0014] Compared with the prior art, the advantage of the present invention is that it discloses a high-speed folding machine, a paper baffle is arranged above the inner end edge of the paper stacking platform, and an air jet hole is arranged at the bottom of the paper baffle. The air jet from the air jet hole ensures that the bottom paper is better separated from the upper paper, and an air suction hole is arranged on the negative suction roller. The air suction from the air suction hole ensures that the paper is sucked into the paper feeding mechanism in the frame, and an air blowing propeller is arranged between the paper baffle and the negative suction roller. The air blowing propeller is provided with an air blowing hole. The air blowing from the air blowing hole further ensures that the bottom paper is better separated from the upper paper. The paper baffle, the negative suction roller and the air blowing propeller are compactly arranged to ensure that the bottom layer of paper can be quickly and stably sucked into the paper feeding mechanism, shortening the running stroke, and the first control valve, the second control valve and the third control valve on the control shaft respectively ensure the orderly operation of the air suction hole, the air jet hole and the air blowing hole, thereby ensuring that the paper is quickly and stably sucked into the paper feeding mechanism, and ultimately improving the working efficiency of the paper folding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure of the present invention is schematically shown Figure 1 ;

[0016] Figure 2 The structure of the present invention is schematically shown Figure 2 ;

[0017] Figure 3 It is a schematic diagram of the internal structure of the present invention;

[0018] Figure 4 It is a front view of the present invention;

[0019] Figure 5 is a cross-sectional view of the present invention;

[0020] Figure 6 It is a schematic diagram of the paper feeding principle of the negative suction roller and the paper feeding pressure wheel of the present invention;

[0021] Figure 7 The explosion of the first control valve, the second control valve and the third control valve of the present invention Figure 1 ;

[0022] Figure 8 The explosion of the first control valve, the second control valve and the third control valve of the present invention Figure 2 ;

[0023] Fig. 9 An exploded view of the negative suction roller of the present invention;

[0024] Fig.10 It is a cross-sectional view of the negative suction roller of the present invention;

[0025] Fig.11 It is a schematic diagram of the paper feeding transmission mechanism of the present invention. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below with reference to the accompanying drawings.

[0027] Embodiment 1: Figure 1-Figure 8 As shown, a high-speed folding machine includes a frame 1, a paper stacking platform 2 and a paper suction mechanism. A paper baffle plate 3 is arranged above the inner edge of the paper stacking platform 2. The paper baffle plate 3 and the paper stacking platform 2 are arranged perpendicular to each other. The paper stacking platform 2 is used to place a paper pile, that is, the medicine instructions to be folded; the paper suction mechanism includes a negative suction roller 4, the negative suction roller 4 is located below the paper baffle plate 3, and the bottom of the paper baffle plate 3 is provided with a plurality of air jet holes 5 for separating the bottom layer of paper from the upper layer of paper. The negative suction roller 4 is provided with a plurality of suction holes 6 for sucking the bottom layer of paper, and an air blowing propeller 7 is arranged between the paper baffle plate 3 and the negative suction roller 4. The air blowing propeller 7 is provided with air blowing holes (not shown in the figure) for separating the bottom layer of paper from the upper layer of paper. A control shaft 9 is arranged on the frame 1, and a first control valve 10 for controlling the air suction time of the air suction hole 6, a second control valve 11 for controlling the air jet time of the air jet hole 5, and a third control valve 12 for controlling the air blowing time of the air blowing hole (not shown in the figure) are arranged on the control shaft 9.

[0028] In this specific embodiment, the first control valve 10 includes a first valve body 13, an air intake segmented ring 14 and a first valve cover 15 which are sequentially penetrated on the control shaft 9. An air intake ring 16 protruding outward is provided on the inner side surface of the first valve body 13. Three first air holes 161 are arranged around the air intake ring 16 at intervals. The centers of the three first air holes 161 are located on the same arc. A first arc-shaped groove 17 is provided on the inner wall of the air intake segmented ring 14 opposite to the air intake segmented ring 16. Two first positioning holes 18 are arranged around the air intake segmented ring 14. Two first positioning posts 19 are provided on the inner wall of the first valve cover 15 opposite to the air intake segmented ring 14. The position of the first positioning post 19 corresponds to the first positioning hole 18, and the first positioning post 19 is inserted into the inner wall of the air intake segmented ring 14. In the first positioning hole 18, the first valve cover 15 is fixed to the control shaft 9 by screws, and a first compression spring 20 is arranged between the first valve cover 15 and the suction segmented ring 14, and a first air outlet 121 for connecting to a negative pressure air source is arranged on the front side wall of the first valve body 13, and a first air inlet for connecting to the suction hole 6 is arranged on the rear side wall of the first valve body 13, and the first air outlet 121 and the first air inlet are respectively connected to the first air hole 161. When the control shaft 9 rotates, the first valve cover 15 drives the suction segmented ring 14 to rotate, so that the first arc-shaped groove 17 covers the three first air holes 161 in sequence, and when the first arc-shaped groove 17 is in a period of simultaneously covering two adjacent first air holes 161, the suction hole 6 of the negative suction roller 4 sucks paper.

[0029] In this specific embodiment, the second control valve 11 includes a second valve cover 21, a blowing segmented ring 22 and a second valve body 23 which are sequentially penetrated on the control shaft 9. An outwardly protruding blowing ring 24 is provided on the inner wall of the second valve body 23 opposite to the blowing segmented ring 22. Three second air holes 25 are arranged around the blowing segmented ring 24 at intervals. The centers of the three second air holes 25 are located on the same arc. A second arc-shaped groove 26 is provided on the inner wall of the blowing segmented ring 22 opposite to the blowing segmented ring 24. Two second positioning holes 27 are arranged around the blowing segmented ring 22. Two second positioning posts 28 are provided on the inner wall of the second valve cover 21 opposite to the blowing segmented ring 22. The position of the second positioning post 28 corresponds to the second positioning hole 27, and the second positioning The column 28 is inserted into the corresponding second positioning hole 27, and the second valve cover 21 is fixed to the control shaft 9 by screws. A second compression spring 29 is arranged between the second valve cover 21 and the blowing segmented ring 22. A second air inlet 231 for connecting to the blowing air source is arranged on the front side wall of the second valve body 23, and a second air outlet for connecting to the blowing hole (not shown in the figure) is arranged on the rear side wall of the second valve body 23. The second air inlet 231 and the second air outlet are respectively connected to the second air hole 25. When the control shaft 9 rotates, the second valve cover 21 drives the blowing segmented ring 22 to rotate, so that the second arc-shaped groove 26 covers the second air holes 25 in sequence. When the second arc-shaped groove 26 is in a period of covering two second air holes 25 at the same time, the blowing propeller 7 blows paper.

[0030] In this specific embodiment, the third control valve 12 includes an injection segmented ring 30 and a third valve cover 31. An outwardly protruding injection ring 32 is provided on the inner wall of the second valve body 23 opposite to the injection segmented ring 30. Three third air holes 33 are arranged at intervals on the injection ring 32. The centers of the three third air holes 33 are located on the same arc. A third arc-shaped groove 34 is provided on the inner wall of the injection segmented ring 30 opposite to the injection segmented ring 32. A plurality of third positioning holes 35 are provided on the surface of the injection segmented ring 30 opposite to the third valve cover 31. A plurality of third positioning columns 36 are arranged at intervals around the inner wall of the third valve cover 31. The number and position of the third positioning columns 36 correspond to those of the third positioning holes 35. The third positioning columns 36 are inserted into the corresponding third positioning holes 35. The valve cover 31 is fixed to the control shaft 9 by screws. The third valve cover 31 presses the jet segmented ring 30 onto the second valve body 23. A plurality of third compression springs 37 are arranged between the third valve cover 31 and the jet segmented ring 30. A third air inlet 233 for connecting to a blowing air source is arranged on the front side wall of the second valve body 23. A third air outlet for connecting to the jet hole 5 is arranged on the rear side wall of the second valve body 23. The third air inlet 233 and the third air outlet are respectively connected to the third air hole 33. When the control shaft 9 rotates, the third valve cover 31 drives the jet segmented ring 30 to rotate, so that the third arc groove 34 covers the third air hole 33 in sequence. When the third arc groove 34 is in a period of simultaneously covering two adjacent third air holes 33, the paper baffle 3 generates a jet.

[0031] In this specific embodiment, the paper suction mechanism also includes a paper feeding pressure wheel 38 and a paper feeding pressure wheel shaft 39 on which the paper feeding pressure wheel 38 is installed. As shown in the figure, when the negative suction roller 4 is located at the P1 position in the figure (the highest position reached by the negative suction roller 4), the suction hole 6 arranged on the negative suction roller 4 faces upward and is perpendicular to the paper stacking platform 2. At this time, the first control valve 10 controls the suction hole 6 to suck air and suck the front edge of the bottom sheet of paper in the paper stack. At the same time, the negative suction roller 4 presses the paper feeding pressure wheel 38 and rotates clockwise downward along the arc surface direction of the paper feeding pressure wheel 38. In this way, the bottom sheet of paper in the paper stack can be smoothly pulled out from the paper stack and curled and attached to the negative suction roller 4. When the front end of the paper is just pulled out by the negative suction roller 4, the second control valve 11 controls the air jet hole 5 arranged in the paper baffle 3 to briefly eject air, and the generated airflow blows toward the front end of the paper, ensuring that the front of the paper is firmly attached to the negative suction roller 4. The suction roller 4 prevents the paper from being folded. When the negative suction roller 4 rotates 180° clockwise downward along the arc surface of the paper feeding pressure wheel 38 to reach the P2 position in the figure (the lowest position reached by the negative suction roller 4), the suction hole 6 is downward, and the tangent line of the arc surface of the paper feeding pressure wheel 38 is at a 90° angle. At this time, a gap is generated between the sucked paper and the paper pile. The third control valve 12 controls the blowing propeller 7 to blow air briefly, and the generated air flow blows to this gap, which can reduce the friction generated by the separation of the bottom paper and the paper pile, ensuring that the bottom paper is smoothly sent out. At the same time, the first control valve 10 controls the negative suction roller 4 to stop sucking air, and the paper is clamped by the negative suction roller 4 and the paper feeding pressure wheel 38 and sent to the paper folding mechanism 47. The negative suction roller 4 returns from the P2 position to the P1 position, thus completing one paper suction, and then continuing the paper suction action of the next paper, and repeating this. Each time the negative suction roller 4 reciprocates, it sucks air once and sucks the next paper.

[0032] Embodiment 2: The other structures are the same as those of Embodiment 1, except that: Fig. 9 and Fig.10 As shown, the negative suction roller 4 includes a hollow suction pipe 40, one end of which is closed, and the other end of the suction pipe 40 is connected to the first air inlet through an air pipe (not shown in the figure), and a plurality of first paper suction holes 41 are arranged at intervals on the suction pipe 40, and a plurality of suction rings 42 and a plurality of paper pressing bearings 43 are sleeved on the suction pipe 40, and a paper pressing bearing 43 is arranged between two adjacent suction rings 42, and the suction rings 42 correspond to the first paper suction holes 41 one by one, and the suction rings 42 are provided with second paper suction holes 44, and the second paper suction holes 44 and the first paper suction holes 41 are arranged one by one opposite to each other, and each group of the first paper suction holes 41 and the second paper suction holes 44 arranged opposite to each other constitute the suction holes 6.

[0033] In this specific embodiment, the suction ring 42 is provided with an opening and closing assembly of the second paper suction hole 44, the opening and closing assembly includes a ring cover 45 and a locking assembly 46, the ring cover 45 is sleeved on the suction ring 42, the ring cover 45 is provided with a third paper suction hole 451 and a locking hole 452, the third paper suction hole 451 corresponds to the second paper suction hole 44, the locking assembly 46 is arranged between the ring cover 45 and the suction ring 42, the locking assembly 46 includes a steel ball 461 and a reset spring 462, the suction ring 42 is provided with a limit hole 421, the steel ball 461 is placed in the limit hole A return spring 462 is provided in the positioning hole 421, between the steel ball 461 and the limiting hole 421, the limiting hole 421 is located below the second paper suction hole 44, the diameters of the third paper suction hole 451 and the locking hole 452 are smaller than the diameter of the steel ball 461, the ring cover 45 is rotated to make the locking hole 452 clamp the steel ball 461, at this time, the second paper suction hole 44 sucks paper normally; the ring cover 45 is continued to be rotated to make the third paper suction hole 451 clamp the steel ball 461, the ring cover 45 covers the second paper suction hole 44, and the outer diameter of the paper pressing bearing 43 is larger than the outer diameter of the ring cover 45.

[0034] Embodiment 3: Other structures are the same as those of Embodiment 2, except that: a paper folding mechanism 47 and an output mechanism 48 are arranged in the frame 1, a paper folding transmission mechanism 49 is arranged outside the frame 1, the paper folding mechanism 47 includes six paper folding rubber rollers 471 and a paper folding board 472, a corresponding paper clamping distance is maintained between two adjacent paper folding rubber rollers 471, the axis connecting line of three adjacent paper folding rubber rollers 471 is V-shaped, a paper folding board 472 is arranged between the two paper folding rubber rollers 471 forming the V-shape, the output mechanism 48 includes four conveying rubber rollers 481, the conveying rubber rollers 481 are staggered up and down below the paper folding rubber rollers 471, the paper folding transmission mechanism 49 drives the paper folding rubber rollers 471 to rotate to realize paper folding, and the paper folding transmission mechanism 49 drives the conveying rubber rollers 481 to rotate to deliver the folded instruction manual finished product out of the frame 1.

[0035] In this specific embodiment, the negative suction roller 4 is driven by the paper suction transmission mechanism 50 to rotate back and forth along the arc surface of the paper feeding pressure wheel 38. The paper suction transmission mechanism 50 includes a transmission shaft 51, a transmission wheel 52 and a transmission swing arm 53. The transmission wheel 52 is installed on the transmission shaft 51. One end of the transmission swing arm 53 is hinged at an eccentric position on the transmission wheel 52, and the other end is hinged to the negative suction roller 4. During operation, the power source drives the transmission shaft 51 to rotate, and the transmission wheel 52 installed on the transmission shaft 51 rotates accordingly. Since one end of the transmission swing arm 53 is hinged at an eccentric position on the transmission wheel 52, and the other end is hinged to the negative suction roller 4, the transmission swing arm 53 carries the negative suction roller 4 on the paper feeding pressure wheel 38 and moves along the arc surface of the paper feeding pressure wheel 38. The paper feeding pressure wheel 38 rotates in only one direction driven by the power source.

[0036] In this specific embodiment, an eccentric balancing block 54 is provided on the transmission shaft 51, and the center of gravity of the eccentric balancing block 54 and the eccentric connection point of the transmission wheel 52 are respectively located on both sides of the axis of the transmission shaft 51. The eccentric balancing block 54 is used to compensate for the eccentric movement of the negative suction roller 4 driven by the transmission shaft 51, so that the folding machine can fold smoothly and quickly when folding 500 pages / MIN.

[0037] In this specific embodiment, Fig.11 As shown, the paper folding transmission mechanism 49 includes a first synchronous belt 491, a second synchronous belt 492, a first tensioning wheel 493, a second tensioning wheel 494, a third tensioning wheel 495, a fourth tensioning wheel 496, a fifth tensioning wheel 497, a first synchronous pulley 498, a second synchronous pulley 499, a third synchronous pulley 500, a fourth synchronous pulley 501 fixed to one end of each paper folding rubber roller 471, and a fifth synchronous pulley 502 fixed to one end of each conveying rubber roller 481. The first synchronous pulley 498 is installed at one end of the paper feeding pressure wheel shaft 39. The frame 1 is also provided with a rotating shaft 55. The second synchronous pulley 499 and the third synchronous pulley 500 are sequentially arranged on the rotating shaft 55. The first synchronous pulley 498 is connected to the second synchronous pulley 499 through the first synchronous belt 491. The first tensioning wheel 493 is connected to the second synchronous pulley 499 through the first fixed shaft 56. The third tensioning wheel 495 is rotatably connected to one side of the third synchronous pulley 500, the second tensioning wheel 494 is rotatably connected to the bottom of the first tensioning wheel 493 through the second fixed shaft 57, the third tensioning wheel 495 is rotatably connected to the obliquely below the fifth synchronous pulley 502 located at the bottom through the third fixed shaft 58, the fourth tensioning wheel 496 is rotatably connected to the other side of the frame 1 through the fourth fixed shaft 59, the third tensioning wheel 495 and the fourth tensioning wheel 496 are arranged opposite to each other, the fifth tensioning wheel 497 is rotatably connected to the obliquely below the first synchronous pulley 498 through the fifth fixed shaft 60, and the second synchronous belt 492 passes through the first tensioning wheel 493, the second tensioning wheel 494, the fourth synchronous pulley 501, the fifth synchronous pulley 502, the third tensioning wheel 495, the fourth tensioning wheel 496, and the fifth tensioning wheel 497 in sequence and are sleeved on the third synchronous pulley 500.

Claims

1. A high-speed folding machine, comprising a frame, a paper stacking platform and a paper suction mechanism, wherein a paper baffle is arranged above the inner edge of the paper stacking platform, the paper baffle and the paper stacking platform are arranged perpendicular to each other, and the paper suction mechanism comprises a negative suction roller, characterized in that A control shaft is arranged in the frame, a plurality of air jet holes for separating the bottom layer of paper from the upper layer of paper are arranged at the bottom of the paper baffle plate, a plurality of air suction holes for sucking the bottom layer of paper are arranged on the negative suction roller, an air blowing propeller is arranged between the paper baffle plate and the negative suction roller, the air blowing propeller is arranged with air blowing holes for separating the bottom layer of paper from the upper layer of paper, a first control valve for controlling the air suction time of the air suction holes, a second control valve for controlling the air jet time of the air jet holes, and a third control valve for controlling the air blowing time of the air blowing holes are arranged on the control shaft; The first control valve comprises a first valve body, an air intake segmented ring and a first valve cover which are sequentially penetrated on the control shaft, an air intake ring protruding outward is arranged on the inner side surface of the first valve body, three first air holes are arranged around the air intake ring at intervals, and the centers of the three first air holes are located on the same arc, a first arc-shaped groove is arranged on the inner wall of the air intake segmented ring opposite to the air intake segmented ring, a plurality of first positioning holes are arranged around the air intake segmented ring, a plurality of first positioning posts are arranged on the inner wall of the first valve cover opposite to the air intake segmented ring, the position and number of the first positioning posts correspond to the first positioning holes, and the first positioning posts are inserted into the first positioning holes, The first valve cover is fixed to the control shaft by screws, a first compression spring is arranged between the first valve cover and the suction segmented ring, a first air outlet for connecting to a negative pressure air source is arranged on the front side wall of the first valve body, a first air inlet for connecting to the suction hole is arranged on the rear side wall of the first valve body, the first air outlet and the first air inlet are respectively connected to the first air hole, when the control shaft rotates, the first valve cover drives the suction segmented ring to rotate, so that the first arc-shaped groove covers the three first air holes in sequence, when the first arc-shaped groove is in the period of simultaneously covering two adjacent first air holes, the suction hole of the negative suction roller sucks paper; The second control valve comprises a second valve cover, a blowing segmented ring and a second valve body which are sequentially penetrated on the control shaft, an outwardly protruding blowing ring is arranged on the inner wall of the second valve body opposite to the blowing segmented ring, three second air holes are arranged on the blowing ring at intervals, the centers of the three second air holes are located on the same arc, a second arc-shaped groove is arranged on the inner wall of the blowing segmented ring opposite to the blowing ring, a plurality of second positioning holes are arranged on the blowing segmented ring, a plurality of second positioning posts are arranged on the inner wall of the second valve cover opposite to the blowing segmented ring, the position and number of the second positioning posts correspond to the second positioning holes, and the second positioning posts are inserted into the corresponding The second valve cover is fixed to the control shaft by screws, a second compression spring is arranged between the second valve cover and the blowing segmented ring, a second air inlet for connecting to the blowing air source is arranged on the front side wall of the second valve body, a second air outlet for connecting to the blowing hole is arranged on the rear side wall of the second valve body, the second air inlet and the second air outlet are connected to the second air hole respectively, when the control shaft rotates, the second valve cover drives the blowing segmented ring to rotate, so that the second arc-shaped groove covers the second air hole in sequence, when the second arc-shaped groove is in the period of simultaneously covering two adjacent second air holes, the blowing hole of the blowing propeller blows paper; The third control valve comprises an air jet segment ring and a third valve cover, an air jet ring protruding outward is arranged on the inner wall of the second valve body opposite to the air jet segment ring, three third air holes are arranged at intervals on the air jet ring, the centers of the three third air holes are located on the same arc, a third arc-shaped groove is arranged on the inner wall of the air jet segment ring opposite to the air jet ring, a plurality of third positioning holes are arranged on the surface opposite to the air jet segment ring and the third valve cover, a plurality of third positioning posts are arranged at intervals on the inner wall of the third valve cover, the number and position of the third positioning posts correspond to the third positioning holes, the third positioning posts are inserted into the corresponding third positioning holes, and the third valve cover is fixed to the On the control shaft, the third valve cover presses the jet segmented ring onto the second valve body, a plurality of third compression springs are arranged between the third valve cover and the jet segmented ring, a third air inlet for connecting to a blowing air source is arranged on the front side wall of the second valve body, a third air outlet for connecting to the jet hole is arranged on the rear side wall of the second valve body, the third air inlet and the third air outlet are respectively connected to the third air hole, when the control shaft rotates, the third valve cover drives the jet segmented ring to rotate, so that the third arc-shaped groove covers the third air hole in sequence, and when the third arc-shaped groove is in a period of simultaneously covering two adjacent third air holes, the paper baffle generates a jet.

2. A high-speed folding machine according to claim 1, characterized in that The negative suction roller includes a hollow suction pipe, one end of which is closed, and the other end of which is connected to the first air inlet through an air pipe. A plurality of first paper suction holes are arranged at intervals on the suction pipe, and a plurality of suction rings and paper pressing bearings are sleeved on the suction pipe. The paper pressing bearing is arranged between two adjacent suction rings, and second paper suction holes are arranged on the suction ring. The second paper suction holes and the first paper suction holes are arranged one by one opposite to each other, and each group of the first paper suction holes and the second paper suction holes arranged opposite to each other constitutes the suction holes.

3. A high-speed folding machine according to claim 2, characterized in that The suction ring is provided with an opening and closing assembly of the second paper suction hole, the opening and closing assembly includes a ring cover and a locking assembly, the ring cover is sleeved on the suction ring, the ring cover is provided with a third paper suction hole and a locking hole, the third paper suction hole corresponds to the second paper suction hole, the locking assembly is arranged between the ring cover and the paper suction ring, the locking assembly includes a steel ball and a reset spring, a limiting hole is provided on the suction ring, the steel ball is placed in the limiting hole, the reset spring is arranged between the steel ball and the limiting hole, the limiting hole is located below the second paper suction hole, the diameters of the third paper suction hole and the locking hole are smaller than the diameter of the steel ball, the ring cover is rotated to make the locking hole clamp the steel ball, at this time, the second paper suction hole normally absorbs paper; the ring cover is continued to be rotated to make the third paper suction hole clamp the steel ball, the ring cover covers the second paper suction hole, and the outer diameter of the paper pressing bearing is larger than the outer diameter of the ring cover.

4. A high-speed folding machine according to claim 1, characterized in that A paper folding mechanism and an output mechanism are arranged in the frame, a paper folding transmission mechanism is arranged outside the frame, the paper folding mechanism includes six paper folding rubber rollers and a paper folding board, a corresponding paper clamping distance is maintained between two adjacent paper folding rubber rollers, the axis connecting line of three adjacent paper folding rubber rollers is V-shaped, the paper folding board is arranged between the two paper folding rubber rollers forming the V-shape, the output mechanism includes four conveying rubber rollers, the conveying rubber rollers are arranged in an upper and lower staggered manner below the paper folding rubber rollers, the paper folding transmission mechanism drives the paper folding rubber rollers to rotate to realize paper folding, and the paper folding transmission mechanism drives the conveying rubber rollers to rotate to send the folded instruction manual finished product out of the frame.

5. A high-speed folding machine according to claim 4, characterized in that A paper feeding pressure wheel shaft is arranged in the frame, and the paper folding transmission mechanism includes a first synchronous belt, a second synchronous belt, a first tensioning wheel, a second tensioning wheel, a third tensioning wheel, a fourth tensioning wheel, a fifth tensioning wheel, a first synchronous pulley, a second synchronous pulley, a third synchronous pulley, a fourth synchronous pulley fixed at one end of each of the paper folding rubber rollers, and a fifth synchronous pulley fixed at one end of each of the conveying rubber rollers. The first synchronous pulley is installed at one end of the paper feeding pressure wheel shaft, and a rotating shaft is also arranged on the frame. The second synchronous pulley and the third synchronous pulley are sequentially arranged on the rotating shaft. The first synchronous pulley is connected to the second synchronous pulley through the first synchronous belt, and the first tensioning wheel is rotatably connected to the first fixed shaft through the first fixed shaft. On one side of the third synchronous belt pulley, the second tensioning wheel is rotatably connected to the bottom of the first tensioning wheel through the second fixed shaft, the third tensioning wheel is rotatably connected to the obliquely below the fifth synchronous belt pulley located at the bottom through the third fixed shaft, and the fourth tensioning wheel is rotatably connected to the other side of the frame through the fourth fixed shaft. The third tensioning wheel and the fourth tensioning wheel are relatively arranged, and the fifth tensioning wheel is rotatably connected to the obliquely below the first synchronous belt pulley through the fifth fixed shaft. The second synchronous belt passes through the first tensioning wheel, the second tensioning wheel, the fourth synchronous belt pulley, the fifth synchronous belt pulley, the third tensioning wheel, the fourth tensioning wheel, and the fifth tensioning wheel in sequence and are sleeved on the third synchronous belt pulley.

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