Printing medium deviation rectifying device for high-speed printing and high-speed printer

Abstract

The utility model relates to the technical field of printers, and particularly discloses a printing medium deviation rectifying device for high-speed printing and a high-speed printer. The deviation correcting device comprises a rack, and the rack is provided with a conveying path enabling a printing medium to advance in the set direction. The conveying path is provided with an inclined conveying mechanism and a guide edge baffle on one side, and the conveyed current printing medium moves forwards close to the guide edge baffle; the oblique conveying mechanism is provided with an air port capable of enabling the wind power generated by the wind power mechanism to act in the transmission conveying area, and a wind power direct acting area passing through the air port is close to the guide edge baffle; and when the printing medium is conveyed to the oblique conveying mechanism, wind power acts on the current printing medium to force the current printing medium to turn and rectify deviation on the oblique conveying mechanism by taking the guide edge baffle as an alignment reference. In the continuous conveying process of the oblique conveying mechanism, the printing medium is forced to turn by taking the guide edge baffle as an alignment reference, so that the dynamic deviation correction of the printing medium in the conveying process is realized.

Description

Technical Field

[0001] This utility model relates to the field of printer technology, specifically a printing media correction device for high-speed printing, and a high-speed printer including the correction device. Background Technology

[0002] Printers that use a paper stacking method separate sheets of paper (i.e., flat sheets) from the paper feeding mechanism and transport them sequentially to the printing mechanism in a set direction for printing. However, during the separation of the stacked paper sheets, due to the effects of air blowing (suction) separation and frictional transport, the separated and forward-carrying sheets will become skewed or offset in the set transport direction. That is, the stacked paper will have varying degrees of skew and offset during the separation and transport process. This results in poor alignment (or alignment with the alignment reference at the printing mechanism) of the sheets before and after reaching the printing mechanism, directly reducing the print quality of the sheets before and after. To ensure the print quality of the sheets before and after, a paper correction mechanism is usually installed upstream of the printing mechanism to ensure that the sheets before and after reach the printing mechanism are transported forward in a basically consistent manner along a set transport trajectory. This is especially common in high-speed printers used in commercial or industrial applications (high-speed printing usually refers to printers with a speed of 60 pages per minute or more).

[0003] Currently, the paper alignment structure used in high-speed printers in the industry mainly achieves alignment through angle correction and translation correction. Specifically, the alignment structure consists of multiple sets of transport roller pairs, one set of alignment roller pairs, and a paper offset detection sensor. During alignment, multiple electromagnets lift the upper rollers of the multiple sets of transport roller pairs, releasing their constraint on the paper. Based on the paper offset value detected by the paper offset detection sensor, the control system controls the deflection and / or axial displacement of the alignment roller pairs to complete the position correction of the current paper. After the alignment operation is completed, the upper rollers of the multiple sets of transport roller pairs press down and contact the lower rollers to continue transporting the paper. It is evident that this type of paper correction structure suffers from technical problems such as complex forming structure, high control difficulty, high manufacturing cost, and high maintenance cost. Furthermore, its correction action requires a process of paper offset detection, comparison of the paper offset with a reference value, output of correction displacement, and mechanical action. To accommodate this correction action, the printer's paper transport efficiency setting should allow sufficient time for correction at the correction structure to prevent paper from "blocking" at the correction structure under excessively high transport efficiency, causing a series of problems that hinder the normal operation of the printer. This directly limits the paper transport efficiency and is not conducive to achieving higher transport efficiencies in high-speed printers. At the same time, due to factors such as detection delays, manufacturing tolerances of components, and the accuracy of control, the actual correction effect still has significant deviations, and the correction accuracy is relatively poor. Utility Model Content

[0004] The technical objective of this utility model is to provide a paper correction device for high-speed printing media (including paper) that has a simple forming structure, high correction accuracy, and is conducive to achieving high transmission efficiency, in view of the special characteristics of the high-speed printer that feeds paper by paper stacking and the shortcomings of the existing paper correction technology of printers, as well as a high-speed printer that includes the correction device.

[0005] The technical objective of this utility model is achieved through the following technical solution: a printing media correction device for high-speed printing, comprising a frame;

[0006] The frame has a transport path that allows the printing media to travel in a set direction;

[0007] The frame at the conveying path has an inclined conveying mechanism, and a guide side is provided on one side of the inclined conveying mechanism along the conveying direction. The drive roller of the inclined conveying mechanism is engaged with the guide side at an acute angle in the conveying direction, and the current printing medium being conveyed moves forward against the guide side.

[0008] The inclined conveying mechanism has an air vent that allows the wind force generated by the wind mechanism to act on the transmission and conveying area, and the area directly affected by the wind force through the air vent is close to the guide side.

[0009] When the printing medium is conveyed to the inclined conveyor, the wind force generated by the wind mechanism acts on the currently conveyed printing medium, forcing the currently conveyed printing medium to turn and correct its course on the inclined conveyor with the guide side as the alignment reference.

[0010] The aforementioned technical measures address the unique characteristics of high-speed printers that use paper stacking for paper feeding. Based on a pre-defined transport path for the printing media (including paper, film, and similar printable carriers), an inclined conveying mechanism (especially an inclined roller conveying mechanism) with longitudinal conveying force and lateral edge-adjusting force is used. A guide side is formed on one side of the inclined conveying mechanism to serve as an edge-adjusting reference. Simultaneously, a pneumatic mechanism applies air pressure near the guide side by blowing / suction, thereby increasing the lateral component of the contact friction between the currently transported printing media and the inclined conveying mechanism at the guide side. This forces the printing media, during continuous transport by the inclined conveying mechanism, to align with the guide side as an alignment reference, adjusting the near-side edge of the printing media (i.e., the edge adjacent to the guide side in the transport direction) to align with the guide side, achieving a dynamic correction effect for the printing media during transport. At the same time, by applying air pressure near the guide side, the current direction of travel of the printing medium can be stabilized to prevent the printing medium from "turning around" and flipping during the continuous transport of the inclined conveyor mechanism. This is especially effective for the transport of the printing medium with the short side close to the guide side and the long side as the direction of travel (this type of transport can easily cause the end of the printing medium far from the guide side - i.e., the far side - to move forward, thereby increasing the deflection relative to the guide side, and even forming a phenomenon where the short side is the direction of travel and the long side is close to the guide side; the aforementioned short side and long side are relative to the contour structure edges of the printing medium with different lengths, such as common A4 paper).

[0011] The aforementioned technical measures, through the cooperation of an inclined conveying mechanism with guide side barriers and a pneumatic mechanism, can dynamically correct the deviation of the printing media during the conveying process. This eliminates the need for numerous other tightly integrated mechanical structures, resulting in a simple forming structure, ease of molding, and low manufacturing and maintenance costs. Furthermore, the deviation correction is completed dynamically during normal conveying, eliminating the need for specially designed mechanical structures to coordinate with the correction process, thus facilitating high transmission efficiency and enabling reliable deviation correction at higher efficiency levels. Simultaneously, because the guide side barrier on one side of the inclined conveying mechanism serves as a physical fixed position and alignment reference during printing media conveying, each printhead is accurately positioned at essentially the same location, achieving excellent deviation correction accuracy.

[0012] As one of the preferred technical solutions, the area directly affected by the airflow through the air vent within the transmission and conveying area is within 2 / 3 of the width of the currently conveyed printing medium, with the guide side as the conveying reference.

[0013] Furthermore, the printing medium is any one of the following specifications: single sheet and flat A3, A4, B3, B4, 8K, and 16K printing media, with a weight typically in the range of 60 to 300 grams.

[0014] The area directly affected by the wind force through the air outlet within the transmission and conveying area is within a range of 200mm in width from the guide side as the conveying reference, and is wider than the conveying direction.

[0015] Furthermore, the printing medium is printing paper;

[0016] The air pressure exerted directly on the printing medium being transported by the air outlet is within the range of 2 to 50 Pa.

[0017] Furthermore, the air pressure exerted directly on the printing medium being transported by the air vent is within the range of 5 to 10 Pa.

[0018] The above technical measures are based on the special characteristics of the printing media in the stacked paper feeding method and the special characteristics of the steering and correction of such printing media during dynamic conveying. The wind power mechanism can reliably cooperate with the inclined conveying mechanism to reliably correct the dynamic conveying of the printing media, so as to ensure that the printing media can reliably turn on the inclined conveying mechanism with the guide side as its reference.

[0019] Meanwhile, the above-mentioned technical measures can effectively ensure that the contact friction between the printing medium and the inclined conveying mechanism at the guide side is increased, and that the lateral side force torque of the printing medium during the conveying process meets the requirements of the correction technology. They can also avoid excessive wind force causing the printing medium to impact, float, deflect, dent, bend, and deform on the inclined conveying mechanism (for inclined roller conveying mechanisms). In particular, they can reduce the occurrence of adverse effects that directly hinder normal and stable conveying, such as the printing medium being input with the front corner of the conveying direction close to the guide side, and the degree of instantaneous deformation when thinner printing media comes into contact with the guide side. This allows the printing medium to reliably turn and correct itself during the continuous conveying process of the inclined conveying mechanism, with the guide side as the alignment reference.

[0020] As one of the preferred technical solutions, the air vents are arranged above the inclined conveying mechanism. The air force through the air vents acts on the transmission and conveying area of ​​the inclined conveying mechanism in a blowing manner. The air force through the air vents directly conveys the path, with the guide side as the reference, and the plane of action of the currently conveyed printing medium is matched with a right angle or obtuse angle.

[0021] Alternatively, the air vents are arranged below the inclined conveying mechanism, and the air force through the air vents acts on the transmission and conveying area of ​​the inclined conveying mechanism in a suction manner. The air force through the air vents directly conveys the path, with the guide side as a reference, and the plane of action of the currently conveyed printing medium is in a right-angle or acute-angle relationship with it.

[0022] In the above technical measures, if the direct delivery path of the airflow from the wind turbine is basically parallel to the guide side, the contact friction between the printing medium and the inclined conveying mechanism is increased. This ensures that the lateral side-mounted torque experienced by the printing medium during delivery meets the requirements for correction technology, and the medium is gradually aligned with the guide side as a reference during the dynamic delivery process of the inclined conveying mechanism. If the direct delivery path of the airflow from the wind turbine forms an obtuse angle (for the air outlet being on top) / an acute angle (for the air outlet being on the bottom) with the plane of the printing medium on the side facing the guide side, this not only increases the contact friction between the printing medium and the inclined conveying mechanism but also applies a certain directional thrust towards the guide side to the printing medium. This, combined with the dynamic delivery process of the printing medium by the inclined conveying mechanism, enables the transported printing medium to achieve directional correction in a more efficient manner.

[0023] As one of the preferred technical solutions, a wind-generating mechanism is arranged on the frame of the inclined conveying mechanism, with the air outlet of the wind-generating mechanism facing the transmission and conveying area of ​​the inclined conveying mechanism. This technical measure satisfies the requirement of wind power cooperating with the inclined conveying mechanism while ensuring that the wind-generating mechanism is arranged close to the inclined conveying mechanism, thereby making the entire correction device compact and easy to implement.

[0024] Furthermore, the wind power mechanism has a fan bracket and multiple sets of electric fans arranged on the fan bracket;

[0025] The fan bracket is fixed to the frame at the inclined conveying mechanism;

[0026] Each set of electric fans is arranged on the fan bracket along the conveying direction.

[0027] The wind power mechanism composed of the above-mentioned technical measures has the following technical characteristics: firstly, it has the advantages of simple structure, easy molding, low manufacturing cost and low maintenance cost, and convenient maintenance; secondly, it can effectively match the conveying range of the inclined conveying mechanism, so that the printing medium can reliably turn and correct itself with the guide side as the alignment reference during the continuous conveying process of the inclined conveying mechanism, and achieve precise correction within the conveying stroke range of the inclined conveying mechanism.

[0028] As one of the preferred technical solutions, an auxiliary guiding mechanism is also arranged on the frame of the inclined conveying mechanism, which is located above the transmission and conveying area of ​​the inclined conveying mechanism and along the conveying direction.

[0029] The auxiliary guiding mechanism and the transmission and conveying area of ​​the inclined conveying mechanism are fitted together to form a conveying channel that allows the currently conveyed printing medium to enter and be conveyed forward.

[0030] The above-mentioned technical measures form a channel for the forward transport of single flat printing media by using an auxiliary guiding mechanism in conjunction with an inclined conveying mechanism. The auxiliary guiding mechanism constrains the possible floating of the printing media on the inclined conveying mechanism, and ensures that the printing media moves stably on the inclined conveying mechanism without affecting the correction action.

[0031] Furthermore, the auxiliary guiding mechanism has a first axis that first engages with the currently conveyed printing medium, a second axis that then engages with the currently conveyed printing medium, and multiple media guide strips spaced apart along the axial direction of the first axis and the second axis and located between the first axis and the second axis;

[0032] The media guide belt adjacent to the drive conveying area of ​​the inclined conveying mechanism forms a conveying channel with the inclined conveying mechanism, allowing the currently conveyed printing media to enter and be conveyed forward.

[0033] The medium guide belt of the auxiliary guiding mechanism rotates between the first axis and the second axis in the direction of conveying under the action of the driving component.

[0034] The above-mentioned technical measures are driven along the conveying direction of the printing medium. While satisfying the need to guide the printing medium, they do not create constraints such as friction or jamming on the printing medium during transport, nor do they affect the correction effect of the printing medium. This ensures that the printed medium being transported moves stably and reliably on the inclined conveying mechanism.

[0035] As one of the preferred technical solutions, the inclined conveying mechanism is an inclined roller transmission structure, which has multiple rotatable transmission inclined rollers that are sequentially assembled on the frame along the conveying direction, and a drive component that drives these transmission inclined rollers to rotate.

[0036] Each drive roller is aligned with the guide side at an acute angle in the conveying direction.

[0037] Furthermore, each drive slant roller is fitted with the guide side guard at an angle of 70 to 85 degrees in the conveying direction.

[0038] The inclined conveying mechanism of the above-mentioned technical measures is easy to form, and the technical effect of side-transfer can be reliably formed. It has excellent cooperation effect with the wind power mechanism. The air outlet of the wind power mechanism can be arranged above the inclined conveying mechanism or below the inclined conveying mechanism, and the implementation method is diverse.

[0039] In the above technical measures, each drive slant roller is matched with the guide side in a specific angle relationship in the conveying direction (the arrangement angle of each drive slant roller is consistent). If the matching angle is too small, the reaction force borne by the printing medium when it is close to the edge will increase. If the matching angle is too large, the length of the correction device needs to be large enough to complete the correction function, which is not conducive to the miniaturization of the correction device.

[0040] A high-speed printer has a frame and a feeding mechanism, a receiving mechanism and at least one printing mechanism arranged on the frame;

[0041] The feeding mechanism and the receiving mechanism form a sequential conveying path from supply to receiving on the frame;

[0042] The printing mechanism is arranged on the sequential conveying path between the feeding mechanism and the receiving mechanism;

[0043] Between the feeding mechanism and the first group of printing mechanisms that are sequentially coordinated, there is a first media conveying section from which the feeding mechanism conveys a single sheet of flat printing medium to the first group of printing mechanisms.

[0044] The first medium conveying section is equipped with a printing medium correction device of any of the above structures;

[0045] The single sheet of flat printing media conveyed by the feeding mechanism travels along the guide side of the printing media correction device when it passes through the printing media correction device.

[0046] Furthermore, the high-speed printer has two sets of printing mechanisms arranged at intervals along the upstream and downstream of the sequential transport path;

[0047] Between the first group of printing mechanisms and the second group of printing mechanisms that work in sequence, there is a second media transport section that transports single sheets of flat printing media from the first group of printing mechanisms to the second group of printing mechanisms.

[0048] The second medium conveying section is equipped with a printing medium correction device of any of the above structures;

[0049] When the single sheet of flat printing medium delivered by the first printing mechanism passes through the printing medium correction device, it travels along the guide side of the printing medium correction device.

[0050] Furthermore, the first group of printing mechanisms and the second group of printing mechanisms are arranged in layers along the height direction of the frame;

[0051] The first group of printing mechanisms and the corresponding first media conveying section are at the same height level;

[0052] The second group of printing mechanisms is at the same height level as the corresponding second media conveying section;

[0053] The frame between the first printing mechanism and the second media conveying section has a vertically arranged media deflection and conveying mechanism.

[0054] The high-speed printer with the above-mentioned technical measures includes the above-mentioned correction device, and therefore has the technical effect of the above-mentioned correction device to dynamically and with high precision correct the conveyed printing media. It can make the sequential printing media entering the corresponding printing mechanism form a high-precision alignment, which is conducive to reliably improving the printing quality of sequential printing media. Moreover, the correction of the printing media is dynamically realized during the conveying process and does not require correction time, which is conducive to reliably improving printing efficiency. Therefore, the above-mentioned high-speed printer can achieve high-quality and high-efficiency printing, with outstanding quality and economic benefits.

[0055] The beneficial technical effects of this utility model are as follows: Addressing the unique characteristics of high-speed printers that transport printing media via stacking, the above-mentioned technical measures utilize an inclined conveying mechanism along the media transport path to form a guide rail for edge-to-edge transport. Simultaneously, a pneumatic mechanism applies appropriate air pressure near the guide rail. During the continuous transport process of the inclined conveying mechanism, the printing media is forced to change direction with the guide rail as the alignment reference. This achieves dynamic correction of the printing media during transport, effectively preventing adverse effects that hinder correction. Therefore, it reliably improves both the printing quality of sequentially printed media and the printing efficiency of the printer. Consequently, high-speed printers incorporating the above-mentioned correction device can achieve high-quality, high-efficiency printing, resulting in outstanding quality and economic benefits.

[0056] After the design of this utility model was completed, a search and analysis of the prior art was conducted, and it was found that a technology entitled "A Horizontal Paper Feeding Mechanism and a Folding Machine" was disclosed in Chinese patent literature, with publication number CN 215478779 U and publication date of January 11, 2022. This technology discloses a technique for conveying horizontally folded paper by cooperating with a slanted roller conveying mechanism and an air blowing device.

[0057] However, the technology disclosed in CN 215478779 U addresses the issues of incomplete stacking and uncertain flatness caused by increased thickness of folded paper. This leads to problems such as the paper not being properly stacked forming corners or failing to enter the transverse folding mechanism. The technology addresses these issues by combining a slanted roller conveyor with an air-blowing device and a brush-structured feeding roller. Specifically, the air nozzle of the air-blowing device is angled towards the feeding roller at the transverse folding mechanism's entrance, causing the airflow direction to be tilted towards the feeding roller. This allows the longitudinally folded paper to enter the slanted roller mechanism, where air pressure flattens the paper, compacting it against the conveyor roller and increasing friction in the conveying direction. Therefore, the air-blowing device disclosed in CN 215478779 U compacts the folded paper conveyed by the slanted roller conveyor to complement the structure at the transverse folding mechanism's entrance, preventing cornering or failure to enter the transverse folding mechanism due to incomplete folding.

[0058] Therefore, although the technology disclosed in CN 215478779 U uses a slanted roller conveyor mechanism in conjunction with an air blowing device to transport folded drawings, the purpose of the air blowing device is to compact the folded state of the drawings before they enter the transverse folding mechanism. In this invention, the printing medium transported by the slanted conveyor mechanism is a single, flat, unfolded sheet of printing medium, which does not require air blowing compaction. If the design logic of CN 215478779 U is adopted, the wind force and direction will have a significant negative effect on the conveying and correction of the printing medium. Moreover, since the purpose of CN 215478779 U is to compact folded drawings, the wind force must be relatively strong, which will also have a significant negative effect on the conveying and correction of the single, flat printing medium in this invention. Therefore, the technical solution of CN 215478779 U provides a reverse technical inspiration for the single, flat printing medium correction technology of this invention.

[0059] In summary, compared with the technology disclosed in CN 215478779 U, this utility model is not obvious in terms of either the inventive concept or the technical solution itself. Attached Figure Description

[0060] Figure 1 This is a schematic diagram of one structure of the correction device of this utility model.

[0061] Figure 2 for Figure 1 The structure shown is a front view from one side.

[0062] Figure 3 for Figure 1A schematic diagram of the inclined conveying mechanism and the area directly affected by wind (showing the conveying direction of the printing medium and the area directly affected by wind).

[0063] Figure 4 for Figure 1 The diagram shows the correction process of the correction device (the auxiliary guide mechanism has been removed from the diagram).

[0064] Figure 5 This is another structural schematic diagram of the correction device of this utility model.

[0065] Figure 6 This is another structural schematic diagram of the correction device of this utility model.

[0066] Figure 7 This is a schematic diagram of the structure of a high-speed printer according to the present invention.

[0067] Figure 8 for Figure 7 A three-dimensional image.

[0068] Figure 9 This is a schematic diagram illustrating the force analysis of wind acting near the guide side to correct the deviation of the printing medium during transport.

[0069] Figure 10 This is a schematic diagram illustrating the force analysis of wind acting on the printing medium during transport to correct its deviation at a point far from the guide side.

[0070] The symbols in the diagram have the following meanings: 1—Frame; 2—Inclined conveyor mechanism; 21—Guide side guard; 22—Drive inclined roller; 23—Bearing plate; 3—Wind power mechanism; 31—Fan bracket; 32—Electric fan; 33—Feed guide plate; 4—Auxiliary guide mechanism; 41—First shaft; 42—Second shaft; 43—Media guide belt; 5—Printing media; 6—Feeding mechanism; 7—First group of printing mechanisms; 8—Second group of printing mechanisms; 9—Receiving mechanism; A—First media conveying section; B—Second media conveying section; C—Near end corner of paper; S—Direct action area; W—Wide width of the direct action area of ​​wind power; L—Length of the direct action area of ​​wind power. Detailed Implementation

[0071] This utility model relates to the field of printer technology, specifically a printing media correction device for high-speed printing, and a high-speed printer including the correction device. The main technical solution of this utility model will be described in detail below with reference to several embodiments. Embodiment 1 is illustrated in conjunction with the accompanying drawings—that is… Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 , Figure 8 , Figure 9 and Figure 10 The technical solution of this utility model will be clearly and thoroughly explained; Embodiment 2 is illustrated in conjunction with the accompanying drawings. Figure 5 The technical solution of this utility model will be clearly and thoroughly explained; Embodiment 3 is illustrated in conjunction with the accompanying drawings. Figure 6 The technical solution of this utility model is clearly and thoroughly explained. Although other embodiments are not shown in separate drawings, their main structures can still be referred to the drawings of Embodiment 1, Embodiment 2 or Embodiment 3.

[0072] It is important to note that:

[0073] 1. The accompanying drawings of this utility model are schematic, and unnecessary details have been simplified in order to clarify the technical purpose of this utility model, so as to avoid obscuring the technical solution contributed by this utility model to the prior art.

[0074] 2. The printing medium of this utility model is usually a single sheet of flat paper, but it does not exclude single sheet of flat film or other printable media, that is, any single sheet of flat printable media is applicable; as for folded paper, thick plate media, etc., they are not applicable to this utility model, that is, the printing medium of this utility model does not include these.

[0075] 3. The terms "approximately" and "basically" used in the following text regarding quantity or matching relationships mean that reasonable assembly and processing errors are allowed within the industry, and do not literally describe absolute quantity or matching relationships.

[0076] Example 1

[0077] See Figure 7 and Figure 8 As shown, the printer of this utility model is a high-speed continuous printer for commercial or industrial use (only for stacked printing media, not roll printing media). It includes a frame 1 and a feeding mechanism 6, a first set of printing mechanisms 7, a second set of printing mechanisms 8, and a receiving mechanism 9 arranged on the frame 1. The feeding mechanism 6 is used to stack and transport the printing media sheet by sheet; the receiving mechanism 9 is used to collect the printing media sheet by sheet and stack them as required; the feeding mechanism 6 and the receiving mechanism 9 form a sequential conveying path of the printing media from supply to collection on the frame 1.

[0078] The first printing mechanism 7 and the second printing mechanism 8 each employ inkjet printing structures. The first printing mechanism 7 and the second printing mechanism 8 are arranged at intervals on the frame 1 along the sequential transport path of the printing media between the feeding mechanism 6 and the receiving mechanism 9. The first printing mechanism 7 is used for printing the first side of the conveyed flat printing media. The second printing mechanism 8 is used for printing the second side of the conveyed flat printing media. According to the printing technology requirements of the printer's control system, the first printing mechanism 7 or the second printing mechanism 8 can be set to perform the corresponding printing action independently, or the first printing mechanism 7 and the second printing mechanism 8 can be set to perform the corresponding printing action collaboratively according to the printing media transport sequence.

[0079] To allow the printing media separated and output by the feeding mechanism 6 to enter the first printing mechanism 7, a first media conveying section A is arranged on the frame 1 between the feeding mechanism 6 and the first printing mechanism 7, for conveying the printing media from the feeding mechanism 6 to the first printing mechanism 7. To allow the printing media output by the first printing mechanism 7 to enter the second printing mechanism 8, a second media conveying section B is arranged on the frame 1 between the first printing mechanism 7 and the second printing mechanism 8, for conveying the printing media from the first printing mechanism 7 to the second printing mechanism 8. Because the printing medium cannot achieve high-precision positioning when entering the first printing mechanism 7 due to drift and / or offset during travel of the printing medium conveyed by the feeding mechanism 6, the printing quality of the printing medium will be affected. Therefore, the following printing medium correction device is provided on the first media conveying section A. Similarly, because the printing medium cannot achieve high-precision positioning when entering the second printing mechanism 8 due to drift and / or offset during travel of the printing medium conveyed by the first printing mechanism 7, the printing quality of the printing medium will be affected. Therefore, the following printing medium correction device is provided on the second media conveying section B.

[0080] The printing media correction device on the first media conveying section A and the printing media correction device on the second media conveying section B adopt the same structure as described below.

[0081] To reduce the floor space occupied by the printer frame 1 and to accommodate the flipping of printing media for double-sided printing, the first printing mechanism 7 and the second printing mechanism 8 are arranged in layers along the height of the frame 1. The first printing mechanism 7 is at the same height as the corresponding first media conveying section A, and the second printing mechanism 8 is at the same height as the corresponding second media conveying section B. The frame 1 between the first printing mechanism 7 and the second media conveying section B has a vertically arranged printing media turning and conveying mechanism.

[0082] The technical contribution of this utility model does not involve the specific structure of the feeding mechanism 6, printing mechanism, printing media turning and conveying mechanism, and receiving mechanism 9 of the high-speed printer, nor does it involve the control system itself that executes the printing action of the high-speed printer on the printing media (except for the control of the start / stop action and adjustment action of the printing media correction device under the control system).

[0083] See Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the printing media correction device used in the above-mentioned high-speed printing includes an inclined conveying mechanism 2 and a wind-powered mechanism 3 arranged on the frame 1 and working together, as well as an auxiliary guiding mechanism 4 arranged between the inclined conveying mechanism 2 and the wind-powered mechanism 3.

[0084] Specifically, the frame 1 has a path for conveying single flat printing media 5 along a set direction, the inclined conveying mechanism 2 is arranged on the printing media conveying path, and the air force mechanism 3 is arranged above the inclined conveying mechanism 2, with the air outlet within the coverage area of ​​the inclined conveying mechanism 2.

[0085] The inclined conveying mechanism 2 is an inclined roller drive structure, having multiple rotatable inclined rollers 22 sequentially mounted on the frame 1 along the printing media conveying direction. These inclined rollers 22 are rotatably mounted on the same plane on the frame 1, and each adjacent inclined roller 22 maintains essentially the same fitting clearance and inclination angle. The inclined conveying mechanism 2 also has a guide side 21 protruding on one side of the inclined conveying mechanism 2 along the printing media conveying direction. The guide side 21 is fixedly connected to the frame 1 and is stationary relative to the inclined rollers 22. Moreover, the guide side 21 is aligned with the positioning reference of the downstream printing mechanism that it cooperates with. Each inclined roller 22 cooperates with the guide side 21 at an acute angle in the printing media conveying direction. The specific included angle is selected in the range of 70° to 85°, preferably 80°. This included angle should not be too large or too small, so that the printing media 5 entering the inclined conveying mechanism 2 is conveyed along the guide side 21 by the rotation of each inclined roller 22. The inclined conveying mechanism 2 also has a drive assembly for driving the rotation of these inclined rollers 22. The drive assembly mainly consists of a motor, a synchronous pulley, a tensioner, and a synchronous belt. The motor, synchronous pulley, and tensioner are mounted on the frame 1 below the inclined rollers 22. The output shaft of the motor is connected to the synchronous pulley. The synchronous belt is fitted between the synchronous pulley and the tensioner. The inner ring wall of the synchronous belt meshes with the synchronous pulley and the tensioner in a toothed structure. The outer ring wall of the synchronous belt is in frictional contact with each inclined roller 22. During the transmission of the synchronous belt, friction drives each inclined roller 22 to rotate.

[0086] The wind-powered mechanism 3 includes a fan bracket 31 and multiple sets of electric fans 32 arranged on the fan bracket 31. The fan bracket 31 is supported and fixed on the frame 1 (for example, by a fixed structure including a guide side 21) and is located above the inclined conveying mechanism 2. The sets of electric fans 32 are arranged on the fan bracket 31 along the direction of printing media transport, and the arrangement of these electric fans 32 basically corresponds to the longitudinal length of the transmission and transport area of ​​the inclined conveying mechanism 2. The air outlet of the wind-powered mechanism 3 faces the transmission and transport area of ​​the inclined conveying mechanism 2, and the direct transport path of the air force blown by the wind-powered mechanism 3, with the guide side 21 as a reference, is perpendicular to the plane of action of the inclined conveying mechanism 2. That is to say, the direct transport path of the air force blown by the wind-powered mechanism 3 is basically parallel to the guide surface of the guide side 21.

[0087] In the aforementioned cooperation between the wind-powered mechanism 3 and the inclined conveying mechanism 2, the airflow from the wind-powered mechanism 3 cannot cover the lateral width of the currently conveyed printing medium 5 in the transverse direction (with the printing medium conveying direction as the longitudinal direction) of the inclined conveying mechanism 2. It can only act in the area of ​​the currently conveyed printing medium 5 near the guide side 21, that is, the direct action area of ​​the airflow from the wind-powered mechanism 3 within the transmission and conveying area of ​​the inclined conveying mechanism 2—such as... Figure 3 The area S directly affected by the wind force should be close to the guide side 21. This is necessary to coordinate with the inclined conveying mechanism 2 to generate a strong lateral side-mounted torque on the printing medium 5 during transport, forcing the printing medium 5 to dynamically change direction and correct its deviation during transport. If the blowing device using the technology disclosed in CN 215478779 U is used, and the blowing is applied along the conveying direction in the lateral width of the currently transported printing medium, or along the conveying direction at the two side edges, the longitudinal conveying force of the inclined roller conveying mechanism on the printing medium is strengthened. During the travel of the printing medium, various unpredictable phenomena such as paper tip flipping, corner bending, tail lifting, and flying are likely to occur, thus deviating from the technical purpose of this utility model to achieve turning and deviation correction during transport. Therefore, the direct area of ​​the wind force of the wind mechanism 3 in the transmission and conveying area of ​​the inclined conveying mechanism 2 (the area S directly affected by the wind force) should be within 2 / 3 of the width of the currently transported printing medium 5 based on the guide side 21, preferably not exceeding 1 / 2 (e.g., Figure 3The width W of the area directly affected by the wind force is shown. As for the coverage range of the wind force blown by the wind mechanism 3 in the longitudinal direction of the inclined conveying mechanism 2—that is, the longitudinal length L of the area directly affected by the wind force—it can correspond to the longitudinal length of the transmission and conveying area of ​​the inclined conveying mechanism 2, or be slightly smaller / greater than the longitudinal length of the transmission and conveying area of ​​the inclined conveying mechanism 2. Taking A3 or A4 paper as the stacked paper printed by a conventional high-speed printer, regardless of whether the paper is conveyed along its length or width, the area directly affected by the wind force blown by the wind mechanism 3 in the transmission and conveying area of ​​the inclined conveying mechanism 2 (the area S directly affected by the wind force) should be within a range of 200mm, preferably within 150mm, transverse to the paper conveying direction, with the guide side 21 as the reference. That is, when acting on the currently conveyed printing medium 5, it is within a range of 200mm, transverse to the printing medium conveying direction, with the guide side 21 as the reference. In other words, the width W of the area directly affected by the wind force is 200mm, starting from the guide side 21.

[0088] When the printing medium 5 being transported arrives at the inclined conveying mechanism 2, the air force of the wind mechanism 3 acts on the area of ​​the printing medium 5 near the guide side 21. During the continuous transport of the inclined conveying mechanism 2, the printing medium 5 being transported is forced to turn and correct itself on the inclined conveying mechanism 2 with the guide side 21 as the alignment reference, and moves accurately along the guide surface of the guide side 21 as the forward transport reference.

[0089] The electric fans 32 of the aforementioned wind power mechanism 3 can be driven synchronously by the same motor, or driven independently by different motors but operating in coordination. Regardless of the operating mode, the wind force blown by each electric fan 32 of the wind power mechanism 3, directly acting on the currently conveyed printing medium 5, should be controlled within the range of 2 to 50 Pa, preferably within the range of 5 to 10 Pa. The specific setting of the wind pressure of the wind power mechanism 3 on the printing medium 5 should be based on the material stiffness of the printing medium. Generally, printing media with lower stiffness can withstand lower wind pressure, while printing media with higher stiffness can withstand higher wind pressure. The stiffness of the printing medium is related to its basis weight, manufacturing process, etc. A wind pressure range of 5 to 10 Pa can basically meet the reliable and stable transmission of different basis weights (60 to 300 g) of paper used in conventional printers, and effectively prevent adverse effects that are not conducive to the correction of the transmission.

[0090] From the above-described cooperation between the wind power mechanism 3 and the inclined conveying mechanism 2, it can be seen that the bottom surface of the wind power mechanism 3 and the top surface of the inclined conveying mechanism 2 form a printing media conveying channel. The printing media 5 currently being conveyed passes through this printing media conveying channel according to the set printing media conveying direction. Therefore, the wind power mechanism 3 has a receiving end that allows the paper head to pass through first. To prevent the paper head of the currently being conveyed printing media 5 from hitting the receiving end of the wind power mechanism 3 and causing jamming, a feed guide plate 33 with a curved and flared opening in the paper feeding direction is fixed at the receiving end of the wind power mechanism 3 (e.g., ...). Figure 2 As shown, the feed guide plate 33 is fixed to the receiving end of the fan bracket 31 and forms a smooth bottom surface.

[0091] To further constrain the current printing medium 5 being transported, ensure that the current printing medium 5 smoothly enters the printing medium transport channel between the inclined transport mechanism 2 and the wind power mechanism 3, and prevent the current printing medium 5 from drifting or becoming unstable, as described above, an auxiliary guide mechanism 4 is also provided between the inclined transport mechanism 2 and the wind power mechanism 3, which is in the direction of printing medium transport.

[0092] The auxiliary guiding mechanism 4 has a first shaft 41, a second shaft 42, and multiple media guide belts 43. The first shaft 41 and the second shaft 42 are sequentially mounted on the frame 1 along the printing media conveying direction and are rotatable on the frame 1, meaning that the first shaft 41 engages with the currently conveyed printing media 5 before the second shaft 42. Multiple sets of pulleys are spaced apart along the axial direction of the first shaft 41, and multiple sets of pulleys are also spaced apart along the axial direction of the second shaft 42. Each pulley on the second shaft 42 has a one-to-one corresponding engagement relationship with each pulley on the first shaft 41. Each set of pulleys has an inwardly concave groove at its axial center. Each media guide belt 43 is fitted onto the corresponding engaging pulleys between the first shaft 41 and the second shaft 42. In other words, the media guide belts 43 are spaced apart along the axial direction of the first shaft 41 and the second shaft 42. Due to the circumferential wrapping characteristics of each media guide belt 43 between the first shaft 41 and the second shaft 42, each media guide belt 43 has a portion adjacent to the inclined conveying mechanism 2 and a portion away from the inclined conveying mechanism 2. During the rotation, the surface of the media guide belt 43 adjacent to the inclined conveying mechanism 2 engages with the inclined conveying mechanism 2 in a non-contact manner and rotates in the direction of the printing medium's travel, forming a conveying channel into which the current printing medium 5 can enter.

[0093] The aforementioned wind mechanism 3 is fitted into the gap formed by the media guide strips 43 of the aforementioned auxiliary guide mechanism 4. During the rotational movement, the surface of the media guide strip 43 adjacent to the inclined conveying mechanism 2 is lower than the bottom surface of the wind mechanism 3. The gap between adjacent media guide strips 43 allows the airflow from the wind mechanism 3 to pass through and act on the inclined conveying mechanism 2 (the current printing medium 5 being conveyed by the inclined conveying mechanism 2).

[0094] In order to prevent the auxiliary guiding mechanism 4 from causing frictional obstruction to the current printing medium 5, the auxiliary guiding mechanism 4 also has a driving component, which drives the first shaft 41 or the second shaft 42 to rotate on the frame 1, thereby driving each medium guide belt 43 to rotate circumferentially. Of course, the rotation direction must be in the same direction as the printing medium transport direction.

[0095] The operation of the aforementioned inclined conveying mechanism 2, the wind-powered mechanism 3, and the auxiliary guiding mechanism 4 depends on the drive of their respective motors. Therefore, in the layout of the aforementioned high-speed printer, the control circuits of these motors are connected to the printer's control system, and the control system drives these motors to operate according to printing commands. Based on the aforementioned printing media correction device, the high-speed printer ensures that the single sheet of flat printing media 5 conveyed by the feeding mechanism 6 travels along the guide edge 21 of the corresponding printing media correction device when passing through the printing media correction device at the first media conveying section A. Similarly, the single sheet of flat printing media 5 conveyed by the first group of printing mechanisms 7 travels along the guide edge 21 of the corresponding printing media correction device when passing through the printing media correction device at the second media conveying section B.

[0096] In the structure of the high-speed printer described above, the discharge port of the feeding mechanism 6 is aligned as closely as possible with the guide side 21 of the inclined conveying mechanism 2 to reduce the excessive deviation between the printing medium 5 entering the inclined conveying mechanism 2 and the guide side 21. Excessive deviation will increase the difficulty of correction and may even prevent correction from being completed in the relatively limited conveying path of the inclined conveying mechanism 2.

[0097] like Figure 9 and Figure 10 As shown, during the research and development process of this utility model, repeated tests were conducted on different arrangements of the air outlet relative to the guide side 21 of the inclined conveying mechanism 2 under the same wind pressure conditions. The printing medium 5 used in the tests was common paper used for stacking printing.

[0098] Test results show that:

[0099] like Figure 9 As shown, the wind force generated by the wind mechanism acts directly on the area near the guide side 21, i.e., the area S where the wind force directly acts. The printing medium 5 entering the inclined conveying mechanism 2, under the combined action of the corresponding cooperation between the feeding mechanism and the guide side 21, and the side-feeding characteristics of the inclined conveying mechanism 2, typically approaches and abuts the reference surface of the guide side 21 with its near-end corner—that is, the near-end corner C (or the near-end corner of the paper tail) at the near-end side. As the printing medium detaches from the feeding mechanism and continues to be conveyed, it is subjected to frictional force from the wind mechanism near the guide side 21, resulting in the following phenomenon:

[0100] When the printing medium 5 approaches and abuts the reference surface of the guide side 21 with the near edge C of the paper head first, the printing medium 5 forms a slight backward sway with the near edge C of the paper head as the force fulcrum, and the near edge side accelerates to approach the reference surface of the guide side 21. At this time, the deformation caused by the near edge C of the paper head abutting the guide side 21 first will be restored as the near edge side approaches, and will be maintained under the wind pressure at the guide side. Thus, a flat and normal transmission is formed with the reference surface of the guide side 21, and the technical effect of correcting the deviation of the printing medium in the transport is achieved.

[0101] When the printing medium approaches and abuts the guide side reference surface with the near edge corner of the paper tail (i.e., the edge corner at the rear end of the near edge corner C of the paper head), the printing medium is slightly tilted forward with the near edge corner of the paper tail as the force fulcrum. This causes the near edge side to accelerate towards the reference surface of the guide side and be held in place by the wind pressure at the guide side. Thus, the reference surface of the guide side forms a flat and normal transmission, achieving the technical effect of correcting the deviation of the printing medium during transportation.

[0102] like Figure 10 As shown, the wind force generated by the wind mechanism acts directly on the area far from the guide side 21, that is, beyond the aforementioned directly acting wind force area S. The printing medium 5 entering the inclined conveying mechanism 2, under the combined action of the corresponding cooperation between the feeding mechanism and the guide side 21, and the edge-conveying characteristics of the inclined conveying mechanism 2, typically approaches and abuts the reference surface of the guide side 21 with the near-end corner of the paper—that is, the near-end side corner C of the paper head (or the near-end corner of the paper tail). As the printing medium detaches from the feeding mechanism and continues to be conveyed, it is subjected to frictional force from the wind mechanism at the far end, resulting in the following phenomenon (this is especially prominent when the printing medium is conveyed with its short side as the near-end side of the guide side and its long side as the direction of travel):

[0103] Regardless of whether the printing medium 5 approaches and abuts the guide edge 21 reference surface first at the near edge C of the paper head or the near edge of the paper tail, or even when the printing medium is flush with the guide edge reference surface at the near edge, the far end of the printing medium 5, under the action of friction, will accelerate its tendency to move towards the edge during the continuous conveying of the inclined conveying mechanism 2. That is, the far end of the printing medium 5 will sway forward, and will accelerate forward during continuous conveying. This will compress the point of force of the near end of the printing medium 5 on the guide edge 21 reference surface, forcing the point of force of the printing medium 5 at the guide edge 21 to be deformed and / or sway forward, forming a conveying tendency of paper head flipping. The deformed near end of the printing medium at the guide edge 21 will cause technical problems such as paper jams and skewing that hinder the conveying, thus hindering the normal transmission of the printing medium. The swaying that forms the tendency of paper head flipping will amplify the skewing, which also goes against the technical purpose of correcting the deviation of the printing medium.

[0104] Example 2

[0105] The rest of the content of this embodiment is the same as that of embodiment 1, except that:

[0106] like Figure 5 As shown, the direct transmission path of the wind force blown by the wind power mechanism 3 takes the guide side 21 of the inclined transmission mechanism 2 as a reference and is in an obtuse angle relationship with the plane of the inclined transmission mechanism 2. That is to say, the extension line of the direct transmission path of the wind force blown by the wind power mechanism 3 is in an acute angle relationship with the extension line of the guide surface of the guide side 21. Of course, the direct transmission path of the wind force blown by the wind power mechanism 3 should not act on the guide side 21.

[0107] In this embodiment, the height of the wind mechanism 3 is increased due to the inclined arrangement of the electric fan 32 on the fan bracket 31. The wind mechanism 3 is positioned above the auxiliary guide mechanism 4 (if the gap formed by the media guide strips 43 of the auxiliary guide mechanism 4 is large enough, it can also be installed within the gap formed by the media guide strips 43 of the auxiliary guide mechanism 4). During rotation, the surface of each media guide strip 43 adjacent to the inclined conveying mechanism 2 is lower than the bottom surface of the wind mechanism 3. The gap between adjacent media guide strips 43 allows the airflow from the wind mechanism 3 to pass through and act on the inclined conveying mechanism 2 (the inclined conveying mechanism 2 conveys the current printing medium 5).

[0108] Example 3

[0109] The rest of the content of this embodiment is the same as that of embodiment 1, except that:

[0110] like Figure 6As shown, the inclined conveying mechanism 2's transmission and conveying area for the printing medium 5 consists of a rotatable inclined roller 22 and a support plate 23 located away from the guide side 21. The height and flatness of the support plate 23 are required to match the conveying plane of each inclined roller 22. In other words, the inclined conveying mechanism 2 in this embodiment uses a shorter inclined roller 22. The portion of the transmission and conveying area not fully covered by the inclined roller 22 is supplemented by the support plate 23. Ideally, the lateral transmission area formed by the inclined roller 22 relative to the guide side 21 should be slightly larger than the direct action area of ​​the wind-powered mechanism on the inclined conveying mechanism 2—that is, the direct action area of ​​the wind force. The direct action area of ​​the wind force formed by the wind-powered mechanism on the inclined conveying mechanism 2 should preferably not cover the support plate.

[0111] Example 4

[0112] The rest of the content of this embodiment is the same as that of embodiment 1, 2 or 3, except that:

[0113] The wind turbine is positioned below the inclined conveyor. The wind turbine generates negative pressure adsorption at the air outlet, which exerts a force on the printing medium conveyed by the inclined conveyor through negative pressure adsorption.

[0114] Of course, since the auxiliary guiding mechanism can only be above the inclined conveying mechanism, the cooperation between the wind power mechanism and the auxiliary guiding mechanism is terminated. The auxiliary guiding mechanism works with the inclined conveying mechanism to form a printing media conveying channel. The media guide belt of the auxiliary guiding mechanism can be a flat structure with a large width. The wind power mechanism does not participate in the construction of the conveying channel, but only applies wind pressure.

[0115] In addition, if the direct action path of the wind force generated by the wind mechanism is arranged at an angle with reference to the guide side, then it is matched with the surface of the printing medium conveyed by the inclined conveying mechanism at an acute angle, that is, the air outlet is inclined to the inclined conveying mechanism near the guide side.

[0116] Example 5

[0117] The rest of the content of this embodiment is the same as that of Embodiment 1, Embodiment 2, Embodiment 3 or Embodiment 4, except that:

[0118] The drive components of the inclined conveying mechanism are arranged at the ends of the drive rollers, thereby achieving toothed engagement or friction drive at the ends of the drive rollers.

[0119] Example 6

[0120] The rest of the content of this embodiment is the same as that of Embodiment 1, Embodiment 2 or Embodiment 3, except that:

[0121] The inclined conveyor mechanism uses a belt structure, consisting of two shafts spaced apart, with a conveyor belt mounted on each shaft. The two shafts are required to form an acute-angle engagement with the guide rails in the direction of printing media transport.

[0122] Example 7

[0123] The rest of the content of this embodiment is the same as that of Embodiment 1, Embodiment 2, Embodiment 3, Embodiment 4 or Embodiment 6, except that:

[0124] Remove the auxiliary guiding mechanism.

[0125] Of course, the corresponding functions will disappear as a result.

[0126] Example 8

[0127] The rest of the content of this embodiment is the same as that of embodiment 1, except that:

[0128] The high-speed printer is a single-sided printer with only one set of printing mechanisms downstream of the feeding mechanism. The printing media output by this printing mechanism enters the receiving mechanism.

[0129] The above embodiments are only used to illustrate the present invention and are not intended to limit it.

[0130] Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications can still be made to the above embodiments, or equivalent substitutions can be made to some of the technical features. For example, as a possible alternative design of the present invention, the air vents arranged at the oblique conveying mechanism can be arranged in a covering manner in the transverse direction corresponding to the printing media conveying direction (i.e., the coverage area of ​​the air vents is equal to or greater than the width of the currently conveyed printing media), thereby forming air vents near the guide side (i.e., within the direct action area S of the wind force allowed by the present invention) and air vents away from the guide side (i.e., beyond the direct action area S of the wind force allowed by the present invention). The air vents (within the direct action area S) coexist, but when performing the work of conveying and correcting the printing medium, the air vents outside the direct action area S are set to not output air force or output very little air force, while the air vents within the direct action area S output air force, and the output air force is greater than that of the air vents outside the direct action area S. In essence, this still uses the air force output by the air vents within the direct action area S in conjunction with the oblique conveying mechanism to convey and correct the current printing medium. The air vents outside the direct action area S exist for the sake of existence, or apply a small force to the current printing medium in accordance with the oblique conveying mechanism. These modifications or substitutions do not cause the essence of the corresponding technical solution to deviate from the spirit and scope of this utility model.

Claims

1. A printing media correction device for high-speed printing, comprising a frame (1); The frame (1) has a transport path that allows the printing medium (5) to travel in a set direction; Its features are: The frame (1) at the conveying path has an inclined conveying mechanism (2), and the inclined conveying mechanism (2) has a guide side (21) on one side along the conveying direction. The drive roller of the inclined conveying mechanism (2) is engaged with the guide side (21) at an acute angle in the conveying direction. The current printing medium (5) being conveyed moves forward against the guide side (21). The inclined conveying mechanism (2) has an air vent that allows the wind force generated by the wind mechanism (3) to act on the transmission and conveying area, and the area directly affected by the wind force through the air vent is close to the guide side (21). When the printing medium (5) is conveyed to the inclined conveying mechanism (2), the wind force generated by the wind mechanism (3) acts on the currently conveyed printing medium (5), forcing the currently conveyed printing medium (5) to turn and correct itself on the inclined conveying mechanism (2) with the guide side (21) as the alignment reference.

2. The high-speed printing media correction device according to claim 1, characterized in that: The air force passing through the air vent directly acts within the transmission and conveying area, which is within 2 / 3 of the width of the currently conveyed printing medium (5) with the guide side (21) as the conveying reference.

3. The high-speed printing media correction device according to claim 2, characterized in that: The printing medium (5) is any one of the following single-sheet and flat printing media specifications: A3, A4, B3, B4, 8K, and 16K. The area directly affected by the wind force through the air outlet within the transmission and conveying area is within a range of 200mm in width and conveying direction, with the guide side (21) as the conveying reference.

4. The high-speed printing media correction device according to claim 1, 2 or 3, characterized in that: The printing medium (5) is printing paper; The air pressure exerted by the airflow through the air outlet on the printing medium (5) being transported is in the range of 2 to 50 Pa.

5. The high-speed printing media correction device according to claim 1, characterized in that: The air vents are arranged above the inclined conveying mechanism (2). The air force through the air vents acts on the transmission and conveying area of ​​the inclined conveying mechanism (2) in a blowing manner. The air force through the air vents directly conveys the path, with the guide side (21) as the reference, and the plane of action of the currently conveyed printing medium (5) is in a right angle or obtuse angle relationship with the plane of action. Alternatively, the air vents are arranged below the inclined conveying mechanism (2), and the air force through the air vents acts on the transmission and conveying area of ​​the inclined conveying mechanism (2) in a suction manner. The air force through the air vents directly conveys the path, with the guide side (21) as the reference, and the plane of action of the currently conveyed printing medium (5) is in a right angle or acute angle relationship with it.

6. The high-speed printing media correction device according to claim 1 or 5, characterized in that: A wind-generating mechanism (3) is arranged on the frame (1) at the inclined conveying mechanism (2), with the air outlet of the wind-generating mechanism (3) facing the transmission and conveying area of ​​the inclined conveying mechanism (2).

7. The high-speed printing media correction device according to claim 6, characterized in that: The wind power mechanism (3) has a fan bracket (31) and multiple sets of electric fans (32) arranged on the fan bracket (31). The fan bracket (31) is fixed on the frame (1) at the inclined conveying mechanism (2); Each group of electric fans (32) is arranged on the fan bracket (31) in the direction of conveying.

8. The high-speed printing media correction device according to claim 1, characterized in that: On the frame (1) of the inclined conveying mechanism (2), there is also an auxiliary guide mechanism (4) arranged above the transmission and conveying area of ​​the inclined conveying mechanism (2) and along the conveying direction. The auxiliary guiding mechanism (4) and the inclined conveying mechanism (2) are fitted together to form a conveying channel that allows the currently conveyed printing medium (5) to enter and be conveyed forward.

9. The high-speed printing media correction device according to claim 8, characterized in that: The auxiliary guide mechanism (4) has a first shaft (41) that first engages with the currently conveyed printing medium (5), a second shaft (42) that then engages with the currently conveyed printing medium (5), and multiple media guide strips (43) that are spaced apart along the axial direction of the first shaft (41) and the second shaft (42) and located between the first shaft (41) and the second shaft (42). The medium guide belt (43) adjacent to the drive conveying area of ​​the inclined conveying mechanism (2) forms a conveying channel with the inclined conveying mechanism (2) that allows the currently conveyed printing medium (5) to enter and be conveyed forward; The medium guide belt (43) of the auxiliary guide mechanism (4) rotates between the first shaft (41) and the second shaft (42) in the direction of conveying under the action of the drive component.

10. The high-speed printing media correction device according to claim 1, 5, or 8, characterized in that: The inclined conveying mechanism (2) is an inclined roller transmission structure, which has multiple rotatable inclined rollers (22) that are sequentially assembled on the frame (1) along the conveying direction, and a drive assembly that drives these inclined rollers (22) to rotate. Each drive roller (22) is engaged with the guide side (21) at an acute angle in the conveying direction.

11. A high-speed printer having a frame (1) and a feeding mechanism (6), a receiving mechanism (9) arranged on the frame (1) and at least one set of printing mechanisms; The feeding mechanism (6) and the receiving mechanism (9) form a sequential conveying path from supply to receiving on the frame (1); The printing mechanism is arranged on the sequential conveying path between the feeding mechanism (6) and the receiving mechanism (9); Between the feeding mechanism (6) and the first group of printing mechanisms (7) that are sequentially coordinated, there is a first media conveying section (A) for conveying a single sheet of flat printing medium (5) from the feeding mechanism (6) to the first group of printing mechanisms (7). Its features are: The printing media correction device according to any one of claims 1 to 10 is arranged on the first media conveying section (A); The single sheet of flat printing medium (5) delivered by the feeding mechanism (6) travels along the guide side (21) of the printing medium correction device when it passes through the printing medium correction device.

12. The high-speed printer according to claim 11, characterized in that: The high-speed printer has two sets of printing mechanisms spaced apart along the upstream and downstream of the sequential transport path; Between the first group of printing mechanisms (7) and the second group of printing mechanisms (8) that work in sequence, there is a second media transport section (B) for transporting a single sheet of flat printing medium (5) from the first group of printing mechanisms (7) to the second group of printing mechanisms (8). The printing media correction device according to any one of claims 1 to 10 is arranged on the second media conveying section (B); When the single flat printing medium (5) delivered by the first printing mechanism (7) passes through the printing medium correction device, it moves along the guide side (21) of the printing medium correction device.

13. The high-speed printer according to claim 12, characterized in that: The first group of printing mechanisms (7) and the second group of printing mechanisms (8) are arranged in layers along the height direction of the frame (1); The first group of printing mechanisms (7) and the corresponding first medium conveying section (A) are at the same height level; The second group of printing mechanisms (8) is at the same height level as the corresponding second medium conveying section (B); On the frame (1) between the first printing mechanism (7) and the second media conveying section (B), there is a vertically arranged media turning and conveying mechanism.

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