High-speed printer for printing stacked printing media

Abstract

The invention relates to the technical field of printers, and particularly discloses a high-speed printer for printing stacked printing media, which comprises a rack, and a feeding mechanism and a receiving mechanism arranged on the rack, the rack between the feeding mechanism and the receiving mechanism is provided with a path for sequentially conveying a single printing medium from feeding to receiving; the sequential conveying path is provided with a first flat conveying section, a first vertical conveying section, a second flat conveying section, a second vertical conveying section and a third flat conveying section which are connected in sequence in the height direction of the rack, and the third flat conveying section is arranged above the second flat conveying section; the second flat conveying section is arranged above the first flat conveying section; the feeding mechanism is correspondingly connected with the first flat conveying section / the third flat conveying section, and the receiving mechanism is correspondingly connected with the third flat conveying section / the first flat conveying section. The length size and the occupied area can be reduced, the manual intervention frequency can be reduced, and the printing efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of printers, and more particularly to a high-speed printer for printing stacked printing media. Background Art

[0002] For printers that supply paper in a stacked manner, a number of sheets of paper (i.e., flat sheets) stacked on a paper supply mechanism are separated one by one and sequentially transported to a printing mechanism in a set direction, and the printing mechanism performs graphic printing on them.

[0003] For commercial or industrial printers (single-sheet inkjet printers), to ensure the printing speed, the single sheets of paper input usually need to be double-sided printed internally according to the set printing task and then output, forming a stacked collection at the paper receiving mechanism. That is to say, for high-speed commercial or industrial printers, the sequential conveying path inside needs to meet the technical requirements for double-sided printing of the input single sheets of paper without output.

[0004] Based on this, in the existing publicly disclosed technologies, the solutions are mainly divided into the following three types: First, at both ends in the length direction of the frame, a paper supply mechanism and a paper receiving mechanism are respectively arranged. An approximately linear sequential conveying path is formed on the frame between the paper supply mechanism and the paper receiving mechanism. A first printing mechanism adjacent to the paper supply mechanism and a second printing mechanism adjacent to the paper receiving mechanism are arranged on the sequential conveying path, and a paper turning mechanism is arranged between the first printing mechanism and the second printing mechanism. Obviously, such high-speed printers are relatively long in length, occupy a large area, and have high technical requirements for the transportation space and installation space. Moreover, due to the existence of the paper turning mechanism, the single sheets of paper output by the first printing mechanism need to be turned over by the paper turning mechanism before entering the second printing mechanism, which necessarily requires a sufficient conveying distance between adjacent sheets of paper conveyed in sequence before and after, thus reducing the working efficiency of the printer. At the same time, the frequently working turning mechanism increases the risk of paper jams.

[0005] Second, at both ends of the frame in the length direction, a paper feeding mechanism and a paper receiving mechanism are arranged respectively. A sequential conveying path with a complex winding structure is formed on the frame between the paper feeding mechanism and the paper receiving mechanism. A printing mechanism and a paper turning mechanism are arranged on the sequential conveying path. Under the action of the paper turning mechanism, the sequential conveying path switches and winds the input paper for conveying, so that the same set of printing mechanisms can sequentially perform double-sided printing on the input paper. For example, the technology disclosed in the Chinese patent document with the title of "A Double-sided Color High-speed Reciprocating Inverting Single-sheet Digital Printer", the publication number of CN 115503356 A, and the publication date of December 23, 2022, etc. Although such high-speed printers are beneficial to reducing the length dimension and floor area, so as to reduce the technical requirements for transportation space and installation space. However, the existence of the paper turning mechanism makes the single sheet of paper after the first printing need to go through the paper turning action of the paper turning mechanism before entering the second printing, which will inevitably affect the conveying efficiency of the single sheet of paper and is not conducive to improving the working efficiency of the printer. At the same time, the existence of the turning mechanism increases the risk of paper jamming.

[0006] Third, at the same end of the frame in the length direction, the paper feeding mechanism and the paper receiving mechanism are arranged together in an upper and lower structure form. A sequential conveying path with a U-shaped winding structure is formed on the frame between the paper feeding mechanism and the paper receiving mechanism. A first printing mechanism adjacent to the paper feeding mechanism and a second printing mechanism adjacent to the paper receiving mechanism are arranged on the sequential conveying path in an upper and lower structure form. A guiding conveying mechanism for single sheets of paper is arranged between the first printing mechanism and the second printing mechanism. Under the action of the guiding conveying mechanism, the sequential conveying path performs U-shaped winding conveying on the input single sheet of paper, so that the two sets of printing mechanisms can sequentially perform double-sided printing on the input single sheet of paper according to the setting. For example, the technology disclosed in the Chinese patent document with the title of "A Double-sided Printer", the publication number of CN 119689814 A, and the publication date of March 25, 2025, etc. Although such high-speed printers are beneficial to reducing the length dimension and floor area, so as to reduce the technical requirements for transportation space and installation space. However, the arrangement structure form of the paper feeding mechanism and the paper receiving mechanism at the same end of the frame in the length direction causes spatial interference between the paper feeding mechanism and the paper receiving mechanism, which is not conducive to the supply of a large stack of papers with a large height (i.e., a large number of stacked papers) and the placement of the collected papers in a large height stack. It is necessary to perform manual stacking for paper feeding and collecting stacked papers relatively frequently. At the same time, it also limits the space for manual operation and is not convenient for manual feeding operation.

[0007] Based on this, it is necessary to optimize the design of high-speed printers (single-sheet inkjet printers). Summary of the Invention

[0008] The technical object of the present invention is: aiming at the particularity of the above-mentioned high-speed printer that feeds paper in a paper stacking manner and the deficiencies of the prior art, to provide a high-speed printer for printing stacked printing media that is beneficial to reducing the length size and floor area, beneficial to reducing the frequency of manual intervention, beneficial to reducing the risk of paper jamming in the conveyance of the printing medium, and more beneficial to improving the working efficiency of the printer.

[0009] The technical object of the present invention is achieved by the following technical solutions. A high-speed printer for printing stacked printing media includes a frame and a feeding mechanism and a receiving mechanism arranged on the frame. On the frame between the feeding mechanism and the receiving mechanism, there is a sequential conveying path for a single printing medium in the stacked printing media to be conveyed from the feeding end to the receiving end. On the sequential conveying path, a printing mechanism is arranged for printing corresponding graphic and text information on the single printing medium being conveyed currently. In the height direction of the frame, the sequential conveying path has a first horizontal conveying section, a first vertical conveying section, a second horizontal conveying section, a second vertical conveying section, and a third horizontal conveying section that are sequentially connected. The third horizontal conveying section is arranged above the second horizontal conveying section, and the second horizontal conveying section is arranged above the first horizontal conveying section. At least a conveying mechanism for conveying a single printing medium in a set direction is arranged on each conveying section. The feeding mechanism is correspondingly connected to the first horizontal conveying section, and the receiving mechanism is correspondingly connected to the third horizontal conveying section; or, the feeding mechanism is correspondingly connected to the third horizontal conveying section, and the receiving mechanism is correspondingly connected to the first horizontal conveying section.

[0010] In view of the particularity of the above-mentioned high-speed printer that feeds paper in the form of paper stacks, the sequential conveying path for the printing medium (including paper, film, and other similar printable carriers) is arranged in an S-shaped winding structure. That is, the feeding mechanism and the receiving mechanism of the sequential conveying path after S-shaped winding are located at both ends in the length direction of the frame, so as to reduce the spatial interference between the feeding mechanism and the receiving mechanism, which is conducive to realizing the supply of printable media stacked at a relatively large height and the stacking placement of printable media collected at a relatively large height. Furthermore, it is conducive to reducing the frequency of manual intervention. In addition, it is also conducive to expanding the manual operation space for operations such as manual feeding / discharging, etc.; the sequential conveying path with S-shaped winding forms structural space requirements in the height direction of the frame, reducing the space requirements for the frame structure in the length direction, which is conducive to reducing the overall length dimension and floor area of the machine, and further conducive to reducing the technical requirements for transportation space and installation space. For example, it is conducive to entering the elevator for transportation, etc.; the sequential conveying path with S-shaped winding can enable the conveyed printable media to be naturally turned over in sequence during the process from supply to collection, forming favorable technical conditions for double-sided printing without a turning mechanism. That is to say, without the intervention of a turning mechanism, by relying on the sequential conveying path with S-shaped winding to cooperate with two sets of printing mechanisms arranged in the upper and lower positions, double-sided printing can be achieved for the conveyed printable media according to the set printing tasks, eliminating the high-frequency working turning mechanism, without the need to form a large conveying distance for the printable media conveyed in the front and back sequences, which is conducive to improving the working efficiency of the printer. At the same time, it is conducive to reducing the risk of jamming of the conveyed printable media.

[0011] As one of the preferred technical solutions, the feeding mechanism is correspondingly connected to the first flat conveying section, and the receiving mechanism is correspondingly connected to the third flat conveying section; Moreover, the sequential conveying path also has a feeding conveying section arranged between the feeding port of the feeding mechanism and the first flat conveying section, and the feeding conveying section is sequentially connected between the feeding port of the feeding mechanism and the first flat conveying section; A conveying mechanism is arranged on the feeding conveying section to convey the single printable media separated by the feeding mechanism to the first flat conveying section in a set direction.

[0012] The sequential conveying path of the above technical measures forms an S-shaped winding conveyance of the printable media from bottom to top, which is conducive to the continuous consumption and supply of printable media stacked at a relatively large height during printing operations, and is conducive to the formation of a relatively large height stacking collection of the printed printable media during continuous collection, so as to reduce the frequency of manual intervention.

[0013] As one of the preferred technical solutions, the feeding mechanism has a feeding bracket and a feeding platform arranged on the feeding bracket for placing stacked printable media; The height position of the feeding platform on the feeding bracket is adjusted by a linear sliding structure that can move up / down.

[0014] Furthermore, the feeding platform of the feeding mechanism is assembled on the feeding bracket by a linear sliding structure, and the feeding platform is connected with a feeding lead screw transmission pair that controls the linear sliding action. The feeding lead screw transmission pair has a feeding automatic control system, and the feeding automatic control system includes a feeding detection sensor, a feeding motor, and a controller. The feeding detection sensors are arranged at the feeding port, used to detect the height position of the stacked printing media on the feeding platform, and feedback the information of the detected current height position of the stacked printing media to the controller. The feeding motor is connected with the feeding lead screw transmission pair. Under the control instruction of the controller, the feeding motor is used to drive the feeding lead screw transmission pair to act, so as to control the feeding platform to move up / down on the feeding bracket.

[0015] Furthermore, the feeding bracket of the feeding mechanism is assembled on the main frame of the machine frame in a detachable structure.

[0016] The feeding mechanism of the above technical measures supplies the stacked printing media placed thereon with a stable and precise dynamic upward supply as it is continuously consumed, so as to ensure the continuous operation of the printer. Moreover, on the premise of not hindering the coordinated cooperation between the feeding mechanism and the whole machine, the bracket of the feeding mechanism is assembled on the main frame of the whole machine in a detachable structure, which is beneficial to the flexible assembly and adjustment of the frame of the whole machine according to the transportation space situation during transportation. For example, when entering the elevator for transportation, due to space limitations, the feeding mechanism can be disassembled first and then assembled after reaching the destination, which greatly facilitates the transportation operation.

[0017] As one of the preferred technical solutions, the feeding mechanisms of the high-speed printer are two groups with redundant configuration. The two feeding mechanisms share the same feeding bracket and are arranged in a high-low layer on the common feeding bracket. Among them, the feeding port of feeding mechanism one is correspondingly connected to the corresponding conveying section of the sequential conveying path. The feeding port of feeding mechanism two is connected to the connection between the feeding port of feeding mechanism one and the sequential conveying path through a feeding bypass conveying mechanism. During the printing process, the control system controls the feeding mechanisms one and two to switch feeding with a set instruction.

[0018] The above technical measures enable two sets of feeding mechanisms on the supply side of the printer to be connected up and down without interference, so that the two sets of feeding mechanisms complement each other as the printing medium is continuously consumed, ensuring continuous supply of the feeding mechanism. During continuous printing operations, the continuous operation of the printer is ensured and the frequency of interruption / shutdown is reduced.

[0019] As one of the preferred technical solutions, the receiving mechanism has a receiving bracket and a receiving platform arranged on the receiving bracket for collecting and stacking the printing medium. The height position of the receiving platform on the receiving bracket is adjusted by a linear sliding structure that can be raised / lowered.

[0020] Furthermore, the receiving platform of the receiving mechanism is assembled on the receiving bracket by a linear sliding structure, and the receiving platform is connected to a receiving lead screw transmission pair for controlling the linear sliding movement. The receiving lead screw transmission pair has a receiving automatic control system, and the receiving automatic control system includes a receiving detection sensor, a receiving motor, and a controller. The receiving detection sensor is arranged at the receiving port for detecting the height position of the stack of printing medium on the receiving platform and feeding back the information on the currently detected height position of the stack of printing medium to the controller. The receiving motor is connected to the receiving lead screw transmission pair, and under the control command of the controller, the receiving motor is used to drive the receiving lead screw transmission pair to act to control the rising / falling movement of the receiving platform on the receiving bracket.

[0021] Furthermore, the receiving bracket of the receiving mechanism is assembled on the main frame of the machine frame in a detachable structure.

[0022] The receiving mechanism of the above technical measures dynamically descends and receives the printing medium in the stack collection smoothly and accurately as it continuously increases to ensure the continuous operation of the printer. Moreover, on the premise of not hindering the coordinated cooperation between the receiving mechanism and the whole machine, the bracket of the receiving mechanism is assembled on the main frame of the whole machine in a detachable structure, which is conducive to the flexible assembly and adjustment of the machine frame of the whole machine according to the transportation space during transportation. For example, when entering an elevator for transportation, due to space limitations, the receiving mechanism can be disassembled first and then assembled after reaching the destination, which greatly facilitates the transportation operation.

[0023] As one of the preferred technical solutions, the high-speed printer has two sets of printing mechanisms arranged on the sequential conveying path. The first set of printing mechanisms is arranged on the first flat conveying section of the sequential conveying path. The second set of printing mechanisms is arranged on the second flat conveying section of the sequential conveying path. The first set of printing mechanisms and / or the second set of printing mechanisms on the sequential conveying path perform graphic information printing on the corresponding surface of the currently conveyed single-piece printing medium. In view of the particularity of commercial or industrial high-speed printers (single-sheet inkjet printers), the above technical measures arrange two sets of printing mechanisms in an upper and lower position on the sequential conveying path with an S-shaped winding. Thus, during the S-shaped path conveying process of the printing medium, double-sided printing can be performed according to the set printing tasks without adding a paper turning mechanism in the sequential conveying path. While meeting the double-sided printing function, the sequential conveying path has a simple structure and a clear conveying path, which can effectively improve the working efficiency of the printer and effectively reduce the risk of jamming the conveyed printing medium.

[0024] Further, corresponding to the set conveying direction of the printing medium on the sequential conveying path, a first deviation correction mechanism for correcting the deviation of the single-piece printing medium conveyed is provided upstream of the first set of printing mechanisms. And / or, a second deviation correction mechanism for correcting the deviation of the single-piece printing medium conveyed is provided upstream of the second set of printing mechanisms.

[0025] In view of the particularity of the above high-speed printer that feeds paper in a paper stack manner, in order to ensure the printing accuracy of the printing medium before and after sequential conveying, a deviation correction mechanism is provided upstream of the corresponding printing mechanism, so that the deviation correction mechanism corrects the conveying position of the printing medium during conveying with the positioning reference of the corresponding printing mechanism as the reference, so as to ensure that the printing medium before and after sequential conveying entering the corresponding printing mechanism remains at the same positioning reference.

[0026] The beneficial technical effects of the present invention are as follows: In view of the particularity of the above high-speed printer that feeds paper in a paper stack manner, the sequential conveying path as the printing medium is arranged in an S-shaped winding structure, that is, the feeding mechanism and the receiving mechanism of the sequential conveying path with an S-shaped winding are located at both ends in the length direction of the frame, so as to reduce the space interference between the feeding mechanism and the receiving mechanism, which is beneficial to realizing the supply of a relatively large-height stacked printing medium and the placement of the collected printing medium in a relatively large-height stack, and further beneficial to reducing the frequency of manual intervention, which is particularly prominent in the S-shaped conveying of the printing medium from bottom to top. In addition, this arrangement structure is also beneficial to expanding the manual operation space for manual feeding / discharging and other operations, which is particularly superior to the U-shaped winding conveying path of the technology with the publication number CN 119689814 A.

[0027] The sequential conveying path of the S-shaped winding structure of the present invention forms structural space requirements in the height direction of the frame, reducing the space requirements for the frame structure in the length direction, which is beneficial to reducing the length dimension and floor area of the whole machine, and thus beneficial to reducing the technical requirements for transportation space and installation space. For example, it is beneficial to enter the elevator for transportation, etc. This is particularly prominent in the detachable structure of the feeding bracket and / or the receiving bracket on the main frame.

[0028] The sequential conveying path of the S-shaped winding structure of the present invention can enable the printed medium to be conveyed to form a natural turn-over in sequence during the process from feeding to receiving, creating favorable technical conditions for double-sided printing without a turn-over mechanism. That is to say, without the intervention of a turn-over mechanism, according to the S-shaped conveying path and in cooperation with two sets of printing mechanisms arranged in the upper and lower positions, double-sided printing can be achieved for the conveyed printed medium according to the set printing tasks, eliminating the turn-over mechanism that works at a high frequency, effectively reducing the risk of jamming of the conveyed printed medium (such as paper), and without the need to form a large conveying distance for the printed medium conveyed in the front and back sequence, which is beneficial to improving the working efficiency of the printer. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic structural diagram of the present invention.

[0030] Figure 2 is Figure 1 a perspective view of

[0031] The meanings of the codes in the figure: 1 - frame; 11 - main frame; 2 - feeding mechanism; 2ˊ - feeding mechanism one; 2" - feeding mechanism two; 21ˊ - feeding platform one; 21" - feeding platform two; 22 - feeding bracket; 3 - receiving mechanism; 31 - receiving bracket; 32 - receiving platform; 4 - first deviation correction mechanism; 5 - first printing mechanism; 6 - second deviation correction mechanism; 7 - second printing mechanism; A - first horizontal conveying section; B - first vertical conveying section; C - second horizontal conveying section; D - second vertical conveying section; E - third horizontal conveying section; F - feeding conveying section; H - feeding bypass conveying mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The present invention relates to the technical field of printers, specifically a high-speed printer for printing stacked printed media. The main technical solution content of the present invention will be specifically described below in combination with multiple embodiments. Among them, Embodiment 1 will clearly and detailedly explain the technical solution content of the present invention in combination with the specification drawings - that is Figure 1 and Figure 2 Other embodiments, although not separately drawn, their main structures can still refer to the drawings of Embodiment 1.

[0033] It should be particularly noted here that: 1. The drawings of the present invention are schematic. Unnecessary details have been simplified for the clear technical purpose of the present invention to avoid obscuring the technical solutions contributed by the present invention to the prior art. 2. The printing medium of the present invention is usually a single flat sheet of paper, but printable media such as a single flat sheet of film are not excluded, that is, any single flat printable medium is applicable; as for folded paper, thick plate media, etc., they are not applicable to the present invention, that is, the printing medium of the present invention does not include these. 3. Expressions such as "about" and "substantially" regarding quantity or mating relationship in the following text mean that reasonable assembly errors, processing errors, etc. in the industry are allowed to exist, rather than the absolute quantity or mating relationship in the literal expression.

[0034] Embodiment 1 See Figure 1 and Figure 2 As shown, the printer of the present invention is a high-speed continuous printer for commercial or industrial use (that is, a single-sheet inkjet printer, only for the printing medium in the stacking mode, rather than the printing medium in the roll mode), which includes a frame 1 and a feeding mechanism 2 (paper feeding mechanism) and a receiving mechanism 3 (paper receiving mechanism) arranged on the frame 1.

[0035] The feeding mechanism 2 is used to place the stacked printing medium (such as stacked paper) and separate and convey it sheet by sheet.

[0036] The receiving mechanism 3 is used to collect the printing medium sheet by sheet and stack and store it according to the set requirements.

[0037] Based on the length direction of the frame 1, the feeding mechanism 2 and the receiving mechanism 3 are arranged separately at the left and right ends of the frame 1. There is a main frame 11 for arranging the printing mechanism and forming the sequential conveying path of the printing medium between the feeding mechanism 2 and the receiving mechanism 3, that is, between the feeding mechanism 2 and the receiving mechanism 3, a sequential conveying path for the single printing medium in the stacked printing medium from supply (feeding) to collection (receiving) is formed on the frame 1.

[0038] In the height direction of the main frame 11 of the frame 1, the above sequential conveying path has a first horizontal conveying section A, a first vertical conveying section B, a second horizontal conveying section C, a second vertical conveying section D and a third horizontal conveying section E connected in sequence, and conveying mechanisms for conveying the printing medium in a set direction are arranged on each conveying section.

[0039] Among them, the third horizontal conveying section E is arranged above the second horizontal conveying section C. The third horizontal conveying section E serves as a transition conveying section between the sequential conveying path and the material receiving mechanism 3, and there are not many requirements for its horizontal state, and basic horizontal (lateral) conveying can be achieved; the tail end of the third horizontal conveying section E is sequentially connected to the material receiving mechanism 3. The second horizontal conveying section C is arranged above the first horizontal conveying section A; as described below, the second horizontal conveying section C needs to arrange a printing mechanism and a deviation correction mechanism, so the second horizontal conveying section C is basically horizontally arranged on the frame 1. The head end of the first horizontal conveying section A is sequentially connected to the feeding mechanism 2; as described below, the first horizontal conveying section A needs to arrange a printing mechanism and a deviation correction mechanism, so the first horizontal conveying section A is basically horizontally arranged on the frame 1. In this way, between the feeding mechanism 2 and the material receiving mechanism 3 on the frame 1, a sequential conveying path with an S-shaped winding structure from bottom to top is formed, so that while meeting the technical requirements for setting the sequential conveying path for double-sided printing, the length dimension of the frame 1 can be effectively reduced and the floor area can be reduced.

[0040] To achieve the continuous conveying of a large number of printing media and reduce interruptions and shutdowns during printing due to the lack of printing media, the feeding mechanism 2 is configured with two redundant sets.

[0041] The two feeding mechanisms 2 share the same feeding support 22 and are arranged in a high-low stratified manner on the common feeding support 22.

[0042] Specifically, the first feeding mechanism 2' is located below the second feeding mechanism 2".

[0043] The first feeding mechanism 2' has a feeding support 22 and a first feeding platform 21' arranged on the feeding support 22 for placing stacked printing media.

[0044] The height position of the first feeding platform 21' on the feeding support 22 is adjusted by a linear sliding structure that can be raised / lowered. Specifically, the first feeding platform 21' of the first feeding mechanism 2' is assembled in the middle and lower region of the feeding support 22 by a vertical linear sliding structure. The first feeding platform 21' is connected to a first feeding lead screw transmission pair that controls the linear sliding movement. The first feeding lead screw transmission pair mainly consists of a first transmission lead screw and a first nut. The first feeding lead screw transmission pair has a first feeding automatic control system, and the first feeding automatic control system includes a first feeding detection sensor, a first feeding motor, and a first controller. The first transmission lead screw is assembled in the middle and lower region of the feeding support 22 in a rotatable structure, and the first nut is fixedly connected to the first feeding platform 21' and is threadedly connected to the corresponding first transmission lead screw. The first feeding detection sensors of the first feeding automatic control system are arranged at the feeding port of the first feeding mechanism 2' to dynamically detect the height position of the stacked printing medium on the first feeding platform 21' and feedback the information on the currently detected height position of the stacked printing medium to the first controller. The first feeding motor of the first feeding automatic control system is connected to the first transmission lead screw of the first feeding lead screw transmission pair. Under the control command of the first controller, the first feeding motor is used to drive the first transmission lead screw of the first feeding lead screw transmission pair to act, thereby converting the rotational motion into a linear motion of the first feeding platform 21' on the feeding support 22 to control the first feeding platform 21' to perform a raising / lowering action in the middle and lower region of the feeding support 22.

[0045] Specifically: When the first controller of the first feeding automatic control system receives an instruction to place the stacked printing medium, it controls the first feeding platform 21' to descend to the initial position on the feeding support 22 through the corresponding rotational output of the first feeding motor and the conversion of the rotational motion of the first feeding lead screw transmission pair into a linear motion. When the first controller of the first feeding automatic control system receives a start instruction, it controls the first feeding platform 21' to rise on the feeding support 22 through the corresponding rotational output of the first feeding motor and the conversion of the rotational motion of the first feeding lead screw transmission pair into a linear motion until the first feeding detection sensor detects the highest position signal of the current stacked printing medium. During the continuous feeding process of the printing operation, the first feeding detection sensor continuously detects the highest position signal of the current stacked printing medium. The first controller of the first feeding automatic control system controls the first feeding platform 21' to gradually rise on the feeding rack 22 based on this signal until it rises to the set final position, and then automatically or according to a manual setting instruction, controls the first feeding platform 21' to descend to the initial position on the feeding support 22.

[0046] Based on the sequential conveying path of the S-shaped winding structure from bottom to top on the above-mentioned frame 1, in order to facilitate the arrangement of the first feeding mechanism 2ˊ on the frame 1 and its smooth connection with the head end of the first flat conveying section A, at the feeding port of the first feeding mechanism 2ˊ, there is arranged a feeding conveying section F that sequentially connects the feeding port of the first feeding mechanism 2ˊ with the head end of the first flat conveying section A. On the feeding conveying section F, there is arranged a conveying mechanism for conveying the printing medium in a set direction, so that the printing medium conveyed by the first feeding mechanism 2ˊ enters the first flat conveying section A through the feeding conveying section F. The feeding conveying section F is arranged on the feeding support 22 in an inclined structure.

[0047] The second feeding mechanism 2" is located above the first feeding mechanism 2ˊ.

[0048] The second feeding mechanism 2" has a feeding support 22 and a second feeding platform 21" arranged on the feeding support 22 and used for placing stacked printing media.

[0049] The height position of the second feeding platform 21" on the feeding support 22 is adjusted by a linear sliding structure that can rise / fall. Specifically, the second feeding platform 21" of the second feeding mechanism 2" is assembled in the upper-middle area of the feeding support 22 in a vertical linear sliding structure (it should not interfere with the spatial position of the first feeding mechanism 2ˊ and is above the feeding port of the first feeding mechanism 2ˊ). The second feeding platform 21" is connected with a second feeding lead screw transmission pair for controlling the linear sliding action. The second feeding lead screw transmission pair is mainly composed of a transmission lead screw two and a nut two. The second feeding lead screw transmission pair has a second feeding automatic control system, and the second feeding automatic control system includes a second feeding detection sensor, a second feeding motor, and a controller two. The transmission lead screw two of the second feeding lead screw transmission pair is assembled in the upper-middle area of the feeding support 22 in a rotatable structure. The nut two of the second feeding lead screw transmission pair is fixedly connected to the second feeding platform 21" and is threadedly connected to the corresponding transmission lead screw two. The second feeding detection sensor of the second feeding automatic control system is arranged at the feeding port of the second feeding mechanism 2" and is used for dynamically detecting the height position of the stacked printing media on the second feeding platform 21" and feeding back the information of the currently detected height position of the stacked printing media to the controller two of the second feeding automatic control system. The second feeding motor of the second feeding automatic control system is connected to the transmission lead screw two of the second feeding lead screw transmission pair. Under the control command of the controller two, the second feeding motor is used for driving the transmission lead screw two of the second feeding lead screw transmission pair to act, thereby converting the rotational motion into the linear motion of the second feeding platform 21" on the feeding support 22 to control the rising / falling action of the second feeding platform 21" in the upper-middle area of the feeding support 22.

[0050] Specifically: When the controller two of the feeding automatic control system two receives the instruction to place the stacked printing medium, it controls the feeding platform two 21" to descend to the initial position on the feeding support 22 through the corresponding rotational output of the feeding motor two, via the rotational motion of the feeding lead screw transmission pair two being converted into linear motion; When the controller two of the feeding automatic control system two receives the start instruction, it controls the feeding platform two 21" to ascend on the feeding support 22 through the corresponding rotational output of the feeding motor two, via the rotational motion of the feeding lead screw transmission pair two being converted into linear motion, until the feeding detection sensor two detects the highest position signal of the current stacked printing medium; During the continuous feeding process of the printing operation, the feeding detection sensor two continuously detects the highest position signal of the current stacked printing medium, and the controller two controls the feeding platform two 21" to gradually ascend on the feeding frame 22 based on this signal until it ascends to the set final position, and automatically or according to the manual setting instruction, controls the feeding platform two 21" to descend to the initial position on the feeding support 22.

[0051] Based on the arrangement position of the above-mentioned feeding mechanism one 2ˊ on the frame 1 and the sequential connection with the first flat conveying section A of the sequential conveying path of the S-shaped winding structure, at the feeding port of the feeding mechanism two 2", there is arranged a feeding bypass conveying mechanism H that sequentially connects the feeding port of the feeding mechanism two 2" with the head end of the feeding conveying section F. That is, the feeding port of the feeding mechanism two 2" is connected at the connection between the feeding port of the feeding mechanism one 2ˊ and the feeding conveying section F through the feeding bypass conveying mechanism H, so that the printing medium conveyed by the feeding mechanism two 2" enters the first flat conveying section A through the feeding bypass conveying mechanism H and the feeding conveying section F. The feeding bypass conveying mechanism H is basically arranged vertically on the feeding support 22.

[0052] Based on the above-mentioned redundant configuration of the feeding mechanism one 2ˊ and the feeding mechanism two 2", during the printing operation, simultaneous feeding cannot be formed, only single feeding is possible. Therefore, the feeding rollers at the feeding ports of the feeding mechanism one 2ˊ and the feeding mechanism two 2" only start to rotate when feeding currently, otherwise they are in a stationary state, and their rotational movements are controlled by the control system of the printer. That is, the control system controls the feeding mechanism one 2ˊ and the feeding mechanism two 2" to switch feeding with a set instruction. Thus, assuming that the feeding mechanism one 2ˊ feeds first and the feeding mechanism two 2" is in standby feeding, when the stacked printing medium placed on the feeding mechanism one 2ˊ is continuously consumed during feeding, the control system switches to the feeding mechanism two 2" to continue feeding, so that the operator can freely place the stacked printing medium on the feeding mechanism one 2ˊ without interfering with the continuous operation of the printer, making the feeding mechanism one 2ˊ in standby feeding, and the same applies when the feeding mechanism two 2" is continuously consumed during feeding.

[0053] Since the structural volume of the printer of the present invention is large relative to that of a general office printer, in order to facilitate the transportation of the whole machine and reduce the high requirements for transportation space, the feeding support 22 of the above feeding mechanism 2 is assembled at the corresponding end of the main frame 11 of the frame 1 in a detachable combined structure.

[0054] The receiving mechanism 3 has a receiving support 31 and a receiving platform 32 arranged on the receiving support 31 for collecting and stacking printed media.

[0055] Specifically, the height position of the receiving platform 32 on the receiving support 31 is adjusted by a linear sliding structure that can be raised / lowered. The specific adjustment structure is that the receiving platform 32 of the receiving mechanism 3 is assembled on the receiving support 31 by a vertical linear sliding structure. The receiving platform 32 is connected to a receiving lead screw transmission pair three for controlling the linear sliding action. The receiving lead screw transmission pair three mainly consists of a transmission lead screw three and a nut three. The receiving lead screw transmission pair three has a receiving automatic control system three, which includes a receiving detection sensor three, a receiving motor three, and a controller three. The transmission lead screw three is assembled on the receiving support 31 in a rotatable structure, and the nut three is fixedly connected to the receiving platform 32 and threadedly connected to the corresponding transmission lead screw three. The receiving detection sensor three of the receiving automatic control system three is arranged at the receiving port of the receiving mechanism 3 for dynamically detecting the height position of the stack of printed media on the receiving platform 32 and feeding back the information of the currently detected height position of the stack of printed media to the controller three. The receiving motor three of the receiving automatic control system three is connected to the transmission lead screw three of the receiving lead screw transmission pair three. Under the control command of the controller three, the receiving motor three is used to drive the transmission lead screw three of the receiving lead screw transmission pair three to act, thereby converting the rotational motion into a linear motion of the receiving platform 32 on the receiving support 31 to control the receiving platform 32 to perform a raising / lowering action on the receiving support 31.

[0056] Specifically: When the controller three receives the instruction to collect the printed media, it controls the receiving platform 32 to rise to the initial position on the receiving support 31; As the printed media being printed is stacked and stored on the receiving platform 32, the receiving detection sensor three continuously detects the signal of the highest position of the current stack of printed media. Based on this signal, the controller three controls the receiving platform 32 to gradually descend on the receiving frame 31 until it descends to the set final position, and automatically or according to the manually set instruction, controls the receiving platform 32 to rise to the initial position on the receiving support 31.

[0057] Since the structural volume of the printer of the present invention is large compared to that of a general office printer, in order to facilitate the transportation of the whole machine and reduce the high requirements for transportation space, the receiving bracket 31 of the above receiving mechanism 3 is assembled at the corresponding end of the main frame 11 of the frame 1 in a detachable combined structure.

[0058] To adapt to double-sided printing of the conveyed printing medium, a first printing mechanism 5 is arranged on the above first horizontal conveying section A, and a second printing mechanism 7 is arranged on the above second horizontal conveying section C. The working process of its printing operation is as follows according to the setting in the control system for the printing task: When only single-sided printing is required for the current printing medium, the printing medium conveyed by the feeding mechanism 2 will be conveyed along the first horizontal conveying section A, the first vertical conveying section B, the second horizontal conveying section C, the second vertical conveying section D and the third horizontal conveying section E in an S-shaped path; during the conveying process, according to the set instruction, the corresponding printing mechanism on the first horizontal conveying section A / second horizontal conveying section C prints the graphic information on the upper surface of the conveyed printing medium, and the other printing mechanism does not work, and the conveying section where it is located only conveys the current printing medium. When double-sided printing is required for the current printing medium, the printing medium conveyed by the feeding mechanism 2 is printed on the upper surface by the first printing mechanism 5 on the first horizontal conveying section A, and then after being conveyed by the first vertical conveying section B, the printed medium with the first side printed is formed with the second side facing up and the printed first side facing down on the second horizontal conveying section C. After being printed on the second side by the second printing mechanism 7, double-sided printing is completed, and then it is conveyed to the receiving mechanism 3 through the second vertical conveying section D and the third horizontal conveying section E.

[0059] To ensure that the above first printing mechanism 5 and second printing mechanism 7 form high-quality printing with a consistent positioning reference for the front and rear printing media conveyed in sequence, corresponding to the set conveying direction of the printing medium on the sequential conveying path, at the upstream of the first printing mechanism 5, a first deviation correction mechanism 4 for correcting the deviation of the single-piece printing medium conveyed is provided, that is, the first deviation correction mechanism 4 and the first printing mechanism 5 are both located on the first horizontal conveying section A; at the upstream of the second printing mechanism 7, a second deviation correction mechanism 6 for correcting the deviation of the single-piece printing medium conveyed is provided, that is, the second deviation correction mechanism 6 and the second printing mechanism 7 are both located on the second horizontal conveying section C.

[0060] The above first printing mechanism 5 and second printing mechanism 7 respectively adopt an inkjet printing structure.

[0061] The structures of the above first deviation correction mechanism 4 and second deviation correction mechanism 6 are the same.

[0062] In this embodiment, the deviation correction mechanism includes an obliquely conveying mechanism and a wind force mechanism that cooperate with each other.

[0063] Specifically, the diagonal conveying mechanism is a diagonal roller drive structure, which has multiple driving diagonal rollers that are sequentially assembled on the frame 1 along the printing medium conveying direction and can rotate. These driving diagonal rollers are assembled on the same plane on the frame 1 in a rotatable structure, and the same fitting clearance and inclination angle are basically maintained between adjacent driving diagonal rollers. The diagonal conveying mechanism also has a guiding edge stop that is convexly formed on one side of the diagonal conveying mechanism along the printing medium conveying direction. The guiding edge stop is fixedly connected to the frame 1, is stationary compared to the driving diagonal rollers, and the guiding edge stop aligns with the positioning reference of the downstream printing mechanism that cooperates with it. Each driving diagonal roller cooperates with the guiding edge stop at an acute angle in the printing medium conveying direction.

[0064] The wind power mechanism has a fan bracket and multiple groups of electric fans arranged on the fan bracket. The fan bracket is supported and fixed on the frame 1 and is located above the diagonal conveying mechanism. Each group of electric fans is arranged on the fan bracket along the printing medium conveying direction, and the arrangement positions of these electric fans basically correspond to the longitudinal length of the driving conveying area of the diagonal conveying mechanism. The air outlet of the wind power mechanism faces the driving conveying area of the diagonal conveying mechanism, and the direct conveying path of the wind blown by the wind power mechanism, with the guiding edge stop as the reference benchmark, cooperates with the acting plane of the diagonal conveying mechanism at a right angle relationship, that is, the direct conveying path of the wind blown by the wind power mechanism is basically parallel to the guiding surface of the guiding edge stop.

[0065] In the cooperation relationship between the wind power mechanism and the diagonal conveying mechanism, the wind blown by the wind power mechanism cannot cover the lateral width of the currently conveyed printing medium in the lateral direction (with the printing medium conveying direction as the longitudinal direction) of the diagonal conveying mechanism, and can only act on the area of the currently conveyed printing medium close to the guiding edge stop, that is, the direct acting area of the wind blown by the wind power mechanism in the driving conveying area of the diagonal conveying mechanism should be close to the guiding edge stop, so as to cooperate with the diagonal conveying mechanism to dynamically turn and correct the conveyed printing medium during conveying.

[0066] Generally, the wind pressure of the wind blown by each electric fan of the wind power mechanism directly acting on the currently conveyed printing medium should be controlled within the range of 2 - 50 Pa, preferably within the range of 5 - 10 Pa.

[0067] The conveying mechanisms at the above-mentioned conveying sections (including the first horizontal conveying section A, the first vertical conveying section B, the second horizontal conveying section C, the second vertical conveying section D, the third horizontal conveying section E, the feeding conveying section F, and the feeding bypass conveying mechanism H) can adopt common paper conveying mechanisms currently, such as conveying by a conveyor belt with a wide belt structure, or forming a guiding conveying channel by a conveyor belt with a wide belt structure in cooperation with a paper pressing conveyor belt, etc. There are no specific requirements for this. Any conveying mechanism that can achieve paper transmission is acceptable. Of course, these conveying mechanisms should not cause position interference with other relative structures arranged at the corresponding positions. For example, the conveying mechanism cooperating with the printing mechanism should not form a paper pressing conveyor belt to prevent interference with the operation of the printing mechanism.

[0068] Embodiment 2 The other contents of this embodiment are the same as those of Embodiment 1, and the difference lies in: The deviation rectifying mechanism is a roller clamping and friction structure disclosed in the prior art.

[0069] Of course, this deviation rectifying mechanism has the time-consuming and other necessary in the action process of roller clamping and friction deviation rectification, which will directly affect the transmission efficiency of the printing medium.

[0070] Embodiment 3 The other contents of this embodiment are the same as those of Embodiment 1, and the difference lies in: The deviation rectifying mechanism is removed.

[0071] Of course, the deviation rectifying function will also be eliminated accordingly.

[0072] Embodiment 4 The other contents of this embodiment are the same as those of Embodiment 1, and the difference lies in: The corresponding brackets of the feeding mechanism and the receiving mechanism and the main frame of the machine frame are of an integrally formed structure and are not detachable.

[0073] Of course, the function of adjustable structural volume will also be eliminated accordingly, and there are relatively high technical requirements for the transportation space.

[0074] Embodiment 5 The other contents of this embodiment are the same as those of Embodiment 1 or 4, and the difference lies in: The feeding mechanism adopts a single structure, that is, the feeding mechanism two / feeding mechanism one is removed, and only the feeding mechanism one / feeding mechanism two is retained.

[0075] When the feeding mechanism two is removed, it will inevitably involve the removal of the feeding bypass conveying mechanism.

[0076] Of course, the corresponding functions will also be eliminated accordingly.

[0077] Embodiment 6 The other contents of this embodiment are the same as those of Embodiment 1, and the difference lies in: Based on the sequential conveying path of the S-shaped winding structure in Embodiment 1, a reverse conveying from the third flat conveying section to the first flat conveying section is formed. Thus, the feeding port of the material receiving mechanism is sequentially connected to the tail end of the third flat conveying section in Embodiment 1, and the material receiving mechanism is connected to the head end of the first flat conveying section in Embodiment 1. The sequential conveying path forms a top-down conveying path from the third flat conveying section to the first flat conveying section of Embodiment 1.

[0078] In this embodiment, the material receiving mechanism can adopt a single structure or a redundant configuration structure. If it is a redundant configuration structure, the feeding mechanism in the lower position needs to be connected between the feeding port of the feeding mechanism in the upper position and the tail end of the third flat conveying section through a feeding bypass conveying mechanism.

[0079] Embodiment 7 The other contents of this embodiment are the same as those of Embodiment 1, and the differences are as follows: The feeding lead screw transmission pair of the feeding mechanism can be replaced by a synchronous belt transmission structure; Similarly, the receiving lead screw transmission pair of the material receiving mechanism can be replaced by a synchronous belt transmission structure.

[0080] Although this embodiment can achieve its technical purpose, it will slightly complicate the forming structure of the feeding mechanism / material receiving mechanism.

[0081] The above embodiments are only used to illustrate the present invention, rather than to limit it.

[0082] Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that they can still modify the above embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the present invention.

Claims

1. A high-speed printer for printing stacked printing media, comprising a frame (1), a feeding mechanism (2) and a receiving mechanism (3) arranged on the frame (1); On the frame (1) between the feeding mechanism (2) and the receiving mechanism (3), there is a sequential conveying path for single printing media in the stacked printing media to be conveyed from supply to collection; On the sequential conveying path, a printing mechanism for printing corresponding graphic and text information on the currently conveyed single printing media is arranged; It is characterized in that: In the height direction of the frame (1), the sequential conveying path has a first horizontal conveying section (A), a first vertical conveying section (B), a second horizontal conveying section (C), a second vertical conveying section (D) and a third horizontal conveying section (E) that are sequentially connected. The third horizontal conveying section (E) is arranged above the second horizontal conveying section (C), and the second horizontal conveying section (C) is arranged above the first horizontal conveying section (A). At least a conveying mechanism for conveying single printing media in a set direction is arranged on each conveying section; The feeding mechanism (2) is correspondingly connected to the first horizontal conveying section (A), and the receiving mechanism (3) is correspondingly connected to the third horizontal conveying section (E); or, the feeding mechanism (2) is correspondingly connected to the third horizontal conveying section (E), and the receiving mechanism (3) is correspondingly connected to the first horizontal conveying section (A).

2. The high-speed printer for printing stacked printing media according to claim 1, characterized in that: The feeding mechanism (2) is correspondingly connected to the first horizontal conveying section (A), and the receiving mechanism (3) is correspondingly connected to the third horizontal conveying section (E); And the sequential conveying path further has a feeding conveying section (F) arranged between the feeding port of the feeding mechanism (2) and the first horizontal conveying section (A), and the feeding conveying section (F) is sequentially connected between the feeding port of the feeding mechanism (2) and the first horizontal conveying section (A); On the feeding conveying section (F), a conveying mechanism for conveying the single printing media separated by the feeding mechanism (2) to the first horizontal conveying section (A) in a set direction is arranged.

3. The high-speed printer for printing stacked printing media according to claim 1 or 2, characterized in that: The feeding mechanism (2) has a feeding support (22) and a feeding platform (21) arranged on the feeding support (22) for placing stacked printing media; The height position of the feeding platform (21) on the feeding support (22) is adjusted by a linear sliding structure that can rise / fall.

4. The high-speed printer for printing stacked printing media according to claim 3, characterized in that: The feeding platform (21) of the feeding mechanism (2) is assembled on the feeding support (22) by a linear sliding structure, and the feeding platform (21) is connected with a feeding lead screw transmission pair for controlling the linear sliding action; The feeding lead screw transmission pair has a feeding automatic control system, and the feeding automatic control system includes a feeding detection sensor, a feeding motor and a controller; The feeding detection sensor is arranged at the feeding port and is used to detect the height position of the stacked printing medium on the feeding platform (21) and feedback the information of the detected height position of the current stacked printing medium to the controller; The feeding motor is connected to the feeding lead screw transmission pair. Under the control instruction of the controller, the feeding motor is used to drive the feeding lead screw transmission pair to act, so as to control the feeding platform (21) to move up / down on the feeding support (22).

5. The high-speed printer for printing stacked printing media according to claim 3, wherein: The feeding support (22) of the feeding mechanism (2) is assembled on the main frame (11) of the frame (1) in a detachable structure combination.

6. The high-speed printer for printing stacked printing media according to claim 1, 2, 4 or 5, wherein: The feeding mechanism (2) of the high-speed printer is two groups with redundant configuration; The two feeding mechanisms (2) share the same feeding support (22) and are arranged in a high-low level stratified manner on the common feeding support (22); Among them, the feeding port of the first feeding mechanism (2ˊ) is correspondingly connected to the corresponding conveying section of the sequential conveying path; The feeding port of the second feeding mechanism (2") is connected to the connection point of the feeding port of the first feeding mechanism (2ˊ) and the sequential conveying path through the feeding bypass conveying mechanism (H); During the printing process, the control system controls the feeding mechanisms of the first feeding mechanism (2ˊ) and the second feeding mechanism (2") to switch feeding according to the set instruction.

7. The high-speed printer for printing stacked printing media according to claim 1 or 2, wherein: The receiving mechanism (3) has a receiving support (31) and a receiving platform (32) arranged on the receiving support (31) for collecting and storing the printed medium stack; The height position of the receiving platform (32) on the receiving support (31) is adjusted by a linear sliding structure that can move up / down.

8. The high-speed printer for printing stacked printing media according to claim 7, wherein: The receiving platform (32) of the receiving mechanism (3) is assembled on the receiving support (31) by a linear sliding structure, and the receiving platform (32) is connected with a receiving lead screw transmission pair for controlling the linear sliding movement; The receiving lead screw transmission pair has a receiving automatic control system, and the receiving automatic control system includes a receiving detection sensor, a receiving motor and a controller; The receiving detection sensor is arranged at the receiving port and is used to detect the height position of the printed medium stack on the receiving platform (32) and feedback the information of the detected height position of the current printed medium stack to the controller; The receiving motor is connected to the receiving lead screw transmission pair. Under the control instruction of the controller, the receiving motor is used to drive the receiving lead screw transmission pair to act, so as to control the receiving platform (32) to move up / down on the receiving support (31).

9. The high-speed printer for printing stacked printing media according to claim 7, wherein: The receiving bracket (31) of the receiving mechanism (3) is assembled on the main frame (11) of the frame (1) in a detachable structure combination.

10. The high-speed printer for stacking and printing printing media according to claim 1, 2, 4 or 8, characterized in that: The high-speed printer has two sets of printing mechanisms arranged on the sequential conveying path; The first printing mechanism (5) is arranged on the first flat conveying section (A) of the sequential conveying path; The second printing mechanism (7) is arranged on the second flat conveying section (C) of the sequential conveying path; The first printing mechanism (5) and / or the second printing mechanism (7) on the sequential conveying path perform graphic information printing on the corresponding surface of the currently conveyed single printing medium.

11. The high-speed printer for stacking and printing printing media according to claim 10, characterized in that: Corresponding to the set conveying direction of the printing medium on the sequential conveying path, a first deviation correction mechanism (4) for correcting the deviation of the single printing medium conveyed is provided upstream of the first printing mechanism (5); And / or, a second deviation correction mechanism (6) for correcting the deviation of the single printing medium conveyed is provided upstream of the second printing mechanism (7).

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