High-speed printer for printing stacked printing media

Abstract

The utility model relates to the technical field of printers, and particularly discloses a high-speed printer for printing stacked printing media, which comprises a frame, and a feeding mechanism and a receiving mechanism arranged on the frame, 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. According to the utility model, 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] This utility model relates to the field of printer technology, specifically a high-speed printer for printing on stacked printing media. Background Technology

[0002] A paper-stacking printer separates several sheets of paper (i.e., flat sheets) stacked on the paper feeding mechanism and transmits them one by one to the printing mechanism in a set direction and sequence, where the printing mechanism prints the images and text.

[0003] Commercial or industrial printers (sheet-fed inkjet printers) typically require double-sided printing of the input sheets according to the set printing task before outputting them, forming a stack for collection at the paper delivery mechanism, in order to ensure printing speed. In other words, the internal sequential transport path of high-speed commercial or industrial printers needs to meet the technical requirements of double-sided printing of the input sheets without prior output.

[0004] Based on this, the solutions in the publicly available technologies can be mainly divided into the following three types:

[0005] Firstly, at both ends of the frame along its length, paper feeding and receiving mechanisms are arranged respectively. A near-linear sequential transport path is formed on the frame between the paper feeding and receiving mechanisms. Along this path are a first printing mechanism adjacent to the paper feeding mechanism and a second printing mechanism adjacent to the paper receiving mechanism. A paper flipping mechanism is located between the first and second printing mechanisms. Clearly, this type of high-speed printer is relatively long and occupies a large area, requiring significant technical expertise in terms of transport and installation space. Furthermore, the presence of the paper flipping mechanism means that each sheet of paper output from the first printing mechanism must be flipped before entering the second printing mechanism. This necessitates sufficient transport spacing between adjacent sheets, reducing the printer's efficiency. Simultaneously, the high-frequency operation of the flipping mechanism increases the risk of paper jams.

[0006] Secondly, at both ends of the frame along its length, paper feeding and receiving mechanisms are arranged respectively. A complex, looping sequential transport path is formed on the frame between the paper feeding and receiving mechanisms. Printing and paper flipping mechanisms are arranged along this sequential transport path. Under the action of the paper flipping mechanism, the sequential transport path switches and loops the input paper, allowing the same group of printing mechanisms to sequentially print on both sides of the input paper. Examples include the technology published in Chinese patent literature entitled "A Double-Sided Color High-Speed ​​Reciprocating Flip-Type Sheet-Up Digital Printing Machine," publication number CN 115503356 A, publication date December 23, 2022. While this type of high-speed printer is advantageous in reducing length and floor space, thus lowering the technical requirements for transport and installation space, the presence of the paper flipping mechanism means that after the first print, each sheet of paper must be flipped before entering the second print run. This inevitably affects the sheet transport efficiency, hindering the printer's overall efficiency. Furthermore, the flipping mechanism increases the risk of paper jams.

[0007] Thirdly, at the same end of the frame along its length, the paper feeding mechanism and the paper receiving mechanism are arranged in an upper and lower structure. A U-shaped sequential transport path is formed on the frame between the paper feeding and receiving mechanisms. Along this sequential transport path, a first printing mechanism adjacent to the paper feeding mechanism and a second printing mechanism adjacent to the paper receiving mechanism are arranged in an upper and lower structure. A sheet-guided transport mechanism is arranged between the first and second printing mechanisms. Under the action of the guide transport mechanism, the sequential transport path transports the input sheet of paper in a U-shaped loop, so that the two sets of printing mechanisms can sequentially print double-sided sheets of paper according to a set sequence. Examples include the technology published in Chinese patent literature entitled "A Double-Sided Printer," publication number CN 119689814 A, and publication date March 25, 2025. While this type of high-speed printer is advantageous in reducing length and floor space, thus lowering the technical requirements for transportation and installation space... However, the arrangement of the paper feeding mechanism and the paper receiving mechanism at the same end of the frame along the length direction causes spatial interference between them. This is not conducive to the supply and collection of paper stacks at greater heights (i.e., large stacks of paper), and requires more frequent manual stacking and collection of paper. At the same time, it also limits the space for manual operation and makes manual feeding inconvenient.

[0008] Therefore, it is necessary to optimize the design of high-speed printers (sheet-fed inkjet printers). Utility Model Content

[0009] The technical objective of this utility model is to provide a high-speed printer for stacked printing media that addresses the specific characteristics of high-speed printers that use paper stacking for paper feeding, as well as the shortcomings of existing technologies. This printer is beneficial for reducing length and floor space, minimizing the frequency of manual intervention, reducing the risk of jamming during printing media delivery, and improving printer efficiency.

[0010] The technical objective of this utility model is achieved through the following technical solution: a high-speed printer for printing stacked printing media, comprising a frame and a feeding mechanism and a receiving mechanism arranged on the frame;

[0011] The frame between the feeding mechanism and the receiving mechanism has a sequential conveying path for individual printing media in the stacked printing media, from feeding to receiving.

[0012] The sequential conveying path is equipped with printing mechanisms that print corresponding graphic information on the currently conveyed single printing medium.

[0013] 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 connected in sequence along the height direction of the frame. 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. Each conveying section has at least one conveying mechanism for conveying a single sheet of printing media in a set direction.

[0014] The feeding mechanism is connected to the first flat conveyor section, and the receiving mechanism is connected to the third flat conveyor section; or, the feeding mechanism is connected to the third flat conveyor section, and the receiving mechanism is connected to the first flat conveyor section.

[0015] The aforementioned technical measures address the unique characteristics of high-speed printers that use a paper stacking feeding method. The sequential transport path for printing media (including paper, film, and similar printable carriers) is arranged in an S-shaped loop structure. Specifically, the feeding and receiving mechanisms along this S-shaped loop are located at opposite ends of the frame's length. This reduces spatial interference between the feeding and receiving mechanisms, facilitating the supply and collection of printing media to larger stacks and reducing the frequency of manual intervention. Furthermore, it expands the manual operation space for tasks such as manual feeding and unloading. The S-shaped loop sequential transport path reduces structural space requirements in the height direction of the frame, decreasing the length-direction space requirements and contributing to a smaller overall machine size. The length and floor space of the printer are reduced, which helps to lower the technical requirements for transportation and installation space, such as facilitating elevator transportation. The S-shaped sequential conveying path allows the printed media to be naturally flipped in sequence from supply to receipt, creating favorable technical conditions for double-sided printing without the need for a flipping mechanism. In other words, without the intervention of a flipping mechanism, the S-shaped sequential conveying path, in conjunction with two sets of printing mechanisms arranged vertically, can achieve double-sided printing of the conveyed printed media according to the set printing task. This eliminates the need for a high-frequency flipping mechanism and avoids the need for a large conveying distance between the sequentially conveyed printed media, which helps to improve the printer's working efficiency and reduces the risk of jamming of the conveyed printed media.

[0016] As one of the preferred technical solutions, the feeding mechanism is connected to the first horizontal conveying section, and the receiving mechanism is connected to the third horizontal conveying section.

[0017] Furthermore, the sequential conveying path also includes a feeding conveying section arranged between the feeding port of the feeding mechanism and the first horizontal conveying section, wherein the feeding conveying section is sequentially connected between the feeding port of the feeding mechanism and the first horizontal conveying section.

[0018] The feeding and conveying section is equipped with a conveying mechanism that transports the individual printing media separated by the feeding mechanism to the first flat conveying section in a set direction.

[0019] The sequential transport path of the above-mentioned technical measures forms an S-shaped rewind transport of the printing media from bottom to top, which is conducive to the continuous consumption and supply of stacked printing media with a large height during the printing operation, and also conducive to the formation of a large stack of printed media during continuous collection, so as to reduce the frequency of manual intervention.

[0020] 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 printing media;

[0021] The height of the feeding platform on the feeding bracket is adjusted by a linear sliding structure that can be raised / lowered.

[0022] Furthermore, the feeding platform of the feeding mechanism is mounted on the feeding bracket with a linear sliding structure, and the feeding platform is connected to a feeding screw drive pair for controlling the linear sliding action.

[0023] The feeding screw drive pair has an automatic feeding control system, which includes a feeding detection sensor, a feeding motor, and a controller.

[0024] The feeding detection sensors are arranged at the feeding port and are used to detect the height position of the stacked printing media on the feeding platform and to feed back the detected information on the current height position of the stacked printing media to the controller.

[0025] The feeding motor is connected to the feeding screw drive pair. Under the control command of the controller, the feeding motor is used to drive the feeding screw drive pair to control the feeding platform to rise / fall on the feeding support.

[0026] Furthermore, the feeding bracket of the feeding mechanism is assembled on the main frame of the machine frame in a detachable structure.

[0027] The aforementioned technical measures utilize a feeding mechanism that provides a stable and precise dynamic supply of stacked printing media as it is continuously consumed, ensuring the printer's continuous operation. Furthermore, without hindering the coordinated operation of the feeding mechanism and the main machine, the feeding mechanism's support is detachably assembled onto the main frame of the machine. This allows for flexible assembly and adjustment of the machine's frame during transport, adapting to available space conditions, such as elevator transport. In situations where space is limited, the feeding mechanism can be disassembled and reassembled upon arrival at the destination, greatly facilitating transportation operations.

[0028] As one of the preferred technical solutions, the feeding mechanism of the high-speed printer is configured with two redundant sets;

[0029] The two feeding mechanisms share the same feeding support and are arranged in high and low layers on the common feeding support;

[0030] Among them, the feeding port of the feeding mechanism one is connected to the corresponding conveying section of the sequential conveying path;

[0031] The feeding port of feeding mechanism two is connected to the feeding port of feeding mechanism one and the sequential conveying path through a feeding bypass conveying mechanism;

[0032] During the printing process, the control system uses set instructions to control the switching of feeding mechanism one and feeding mechanism two.

[0033] The above-mentioned technical measures enable the printer's supply side to form two sets of feeding mechanisms that can be connected and do not interfere with each other. As the printing media is continuously consumed, the two sets of feeding mechanisms complement each other to ensure a continuous supply of materials. In continuous printing operations, this ensures the printer can continue to operate and reduces the frequency of interruptions / stops.

[0034] 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 storing printing media in a stack.

[0035] The height of the receiving platform on the receiving bracket is adjustable by a linear sliding structure that can be raised / lowered.

[0036] Furthermore, the receiving platform of the receiving mechanism is mounted on the receiving bracket with a linear sliding structure, and the receiving platform is connected to a receiving screw drive pair for controlling the linear sliding movement.

[0037] The take-up screw drive pair has an automatic take-up control system, which includes a take-up detection sensor, a take-up motor, and a controller.

[0038] The receiving detection sensors are arranged at the receiving port to detect the height position of the printing media stack on the receiving platform and to feed back the detected information of the current height position of the printing media stack to the controller.

[0039] The receiving motor is connected to the receiving lead screw drive pair. Under the control command of the controller, the receiving motor is used to drive the receiving lead screw drive pair to control the receiving platform to rise / fall on the receiving support.

[0040] Furthermore, the receiving bracket of the receiving mechanism is assembled on the main frame of the machine frame in a detachable structure.

[0041] The aforementioned technical measures utilize a receiving mechanism that dynamically and precisely lowers the stacked printing media as it accumulates, ensuring continuous printer operation. Furthermore, without hindering the coordinated operation of the receiving mechanism and the main machine, the receiving mechanism's support is detachably assembled onto the main frame of the machine. This allows for flexible assembly and adjustment of the machine's frame during transport, adapting to available space conditions, such as elevator transport. In situations where space is limited, the receiving mechanism can be disassembled and reassembled upon arrival at the destination, greatly facilitating transportation operations.

[0042] As one of the preferred technical solutions, the high-speed printer has two sets of printing mechanisms arranged on a sequential conveying path;

[0043] The first group of printing mechanisms is arranged on the first horizontal conveying section of the sequential conveying path;

[0044] The second group of printing mechanisms is arranged on the second horizontal conveying section of the sequential conveying path;

[0045] The first group of printing mechanisms and / or the second group of printing mechanisms on the sequential conveying path print graphic information on the corresponding side of the currently conveyed single printing medium.

[0046] The above-mentioned technical measures are designed for the special characteristics of commercial or industrial high-speed printers (sheet-fed inkjet printers). Two sets of printing mechanisms are arranged vertically on the S-shaped sequential transport path. This allows for double-sided printing of the printing media according to the set printing task during the S-shaped transport of the printing media, eliminating the need to add a paper flipping mechanism to the sequential transport path. While satisfying the double-sided printing function, the sequential transport path structure is simple and the transport path is clear, which can effectively improve the printer's working efficiency and effectively reduce the risk of jamming of the transported printing media.

[0047] Furthermore, corresponding to the set conveying direction of the printing medium on the sequential conveying path, a first correction mechanism is provided upstream of the first group of printing mechanisms to correct the deviation of the conveyed single printing medium.

[0048] And / or, upstream of the second set of printing mechanisms, a second correction mechanism is provided for correcting the deviation of the conveyed single printing media.

[0049] The above technical measures are designed to address the special characteristics of high-speed printers that use paper stacking for paper feeding. To ensure the printing accuracy of sequentially fed printing media, a correction mechanism is installed upstream of the corresponding printing mechanism. This correction mechanism uses the positioning reference of the corresponding printing mechanism as a reference to correct the feeding position of the printing media, ensuring that the sequentially fed printing media entering the corresponding printing mechanism remain at the same positioning reference.

[0050] The beneficial technical effects of this utility model are as follows: Addressing the specific characteristics of high-speed printers that use a paper stacking method for paper feeding, the above-mentioned technical measures arrange the sequential conveying path of the printing media in an S-shaped loop structure. Specifically, the feeding and receiving mechanisms of the S-shaped loop sequential conveying path are located at both ends of the frame's length, reducing spatial interference between the feeding and receiving mechanisms. This facilitates the supply and collection of printing media at greater heights, thereby reducing the frequency of manual intervention. This is particularly evident in the S-shaped conveying of the printing media from bottom to top. Furthermore, this arrangement structure also expands the manual operating space for manual feeding / unloading operations, which is especially superior to the U-shaped loop conveying path of the technology disclosed in CN 119689814 A.

[0051] The sequential conveying path of the S-shaped loop structure of this utility model creates structural space requirements in the height direction of the frame, reducing the space requirements of the frame structure in the length direction. This is beneficial to reducing the overall length and floor space of the machine, and thus reducing the technical requirements for transportation and installation space. For example, it is beneficial to be transported by elevator. This is especially prominent in the detachable structure of the feeding bracket and / or receiving bracket on the main frame.

[0052] The sequential conveying path of this utility model's S-shaped loop structure enables the conveyed printing media to naturally flip over in sequence during the supply-to-receive process, creating favorable technical conditions for double-sided printing without the need for a flipping mechanism. In other words, without the intervention of a flipping mechanism, the S-shaped conveying path, in conjunction with two sets of printing mechanisms arranged vertically, allows for double-sided printing of the conveyed printing media according to the set printing task. This eliminates the need for a high-frequency flipping mechanism, effectively reducing the risk of jamming the conveyed printing media (such as paper), and avoids the need for a large conveying distance between sequentially conveyed printing media, thus improving the printer's working efficiency. Attached Figure Description

[0053] Figure 1 This is a schematic diagram of one structure of the present utility model.

[0054] Figure 2 for Figure 1 A three-dimensional image.

[0055] The symbols in the diagram have the following meanings: 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 support; 3—Receiving mechanism; 31—Receiving support; 32—Receiving platform; 4—First correction mechanism; 5—First printing mechanism; 6—Second 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 Implementation

[0056] This utility model relates to the field of printer technology, specifically a high-speed printer for printing on stacked printing media. The main technical solution of this utility model will be described in detail below with reference to several embodiments. Embodiment 1, in conjunction with the accompanying drawings, is... Figure 1 and Figure 2 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.

[0057] It is important to note that:

[0058] 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.

[0059] 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.

[0060] 3. The terms "approximately" and "basically" used in the following text regarding quantity or fit relationships mean that reasonable assembly and processing errors are allowed within the industry, and do not literally describe absolute quantities or fit relationships.

[0061] Example 1

[0062] See Figure 1 and Figure 2 As shown, the printer of this utility model is a high-speed continuous printer for commercial or industrial use (i.e., a sheet-fed inkjet printer, which is only for stacked printing media, not roll-fed printing media), 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.

[0063] The feeding mechanism 2 is used to place stacked printing media (e.g., stacked paper) and separate and convey them one sheet at a time.

[0064] The receiving mechanism 3 is used to collect the printing media sheet by sheet and stack them according to the set requirements.

[0065] With the length direction of the frame 1 as the reference, the feeding mechanism 2 and the receiving mechanism 3 are arranged at the left and right ends of the frame 1 respectively. Between the feeding mechanism 2 and the receiving mechanism 3, there is a main frame 11 for arranging the printing mechanism and forming a sequential conveying path for the printing media. That is, between the feeding mechanism 2 and the receiving mechanism 3, a sequential conveying path for a single sheet of printing media in the stacked printing media is formed on the frame 1 from supply to collection.

[0066] The above-mentioned sequential conveying path, in the height direction of the main frame 11 of the frame 1, 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. Each conveying section is equipped with a conveying mechanism for conveying the printing medium in a set direction.

[0067] The third horizontal conveyor section E is positioned above the second horizontal conveyor section C. As a transitional conveyor section between the sequential conveying path and the receiving mechanism 3, its horizontal position is not critical; basic horizontal (lateral) conveying is sufficient. The tail end of the third horizontal conveyor section E connects sequentially to the receiving mechanism 3. The second horizontal conveyor section C is positioned above the first horizontal conveyor section A. As described below, the second horizontal conveyor section C requires the arrangement of the printing mechanism and the correction mechanism; therefore, the second horizontal conveyor section C is basically horizontally arranged on the frame 1. The head end of the first horizontal conveyor section A connects sequentially to the feeding mechanism 2. As described below, the first horizontal conveyor section A requires the arrangement of the printing mechanism and the correction mechanism; therefore, the first horizontal conveyor section A is basically horizontally arranged on the frame 1. Thus, between the feeding mechanism 2 and the receiving mechanism 3 on the frame 1, a sequential conveying path with an S-shaped loop structure from bottom to top is formed. This not only meets the technical requirements for setting up a sequential conveying path for double-sided printing, but also effectively reduces the length of the frame 1 and the floor space occupied.

[0068] To ensure a continuous supply of printing media and reduce interruptions and shutdowns during printing due to a lack of printing media, the feeding mechanism 2 is configured with two redundant sets.

[0069] The two sets of feeding mechanisms 2 share the same feeding bracket 22 and are arranged in high and low layers on the common feeding bracket 22.

[0070] Specifically, the feeding mechanism 12' is located below the feeding mechanism 2'.

[0071] The feeding mechanism 2' has a feeding bracket 22 and a feeding platform 21' arranged on the feeding bracket 22 for placing stacked printing media.

[0072] The height of the feeding platform 21' on the feeding bracket 22 is adjusted by a linear sliding structure that allows it to rise and fall. Specifically, the feeding platform 21' of the feeding mechanism 2' is mounted vertically in the lower middle region of the feeding bracket 22. The feeding platform 21' is connected to a feeding screw drive pair that controls the linear sliding motion. This feeding screw drive pair mainly consists of a drive screw and a nut. This feeding screw drive pair has an automatic feeding control system, which includes a feeding detection sensor, a feeding motor, and a controller. The drive screw is rotatably mounted in the lower middle region of the feeding bracket 22, and the nut is fixedly connected to the feeding platform 21' and threadedly connected to the corresponding drive screw. The feeding detection sensor of the automatic feeding control system is arranged at the feeding port of the feeding mechanism 2'. It is used to dynamically detect the height position of the stacked printing media on the feeding platform 21' and feed back the detected information of the current height position of the stacked printing media to the controller. The feeding motor of the automatic feeding control system is connected to the transmission screw of the feeding screw drive pair. Under the control command of the controller, the feeding motor drives the transmission screw of the feeding screw drive pair to move, thereby converting the rotational motion into the linear motion of the feeding platform 21' on the feeding support 22, so as to control the feeding platform 21' to rise / fall in the lower middle area of ​​the feeding support 22.

[0073] Specifically:

[0074] When the controller of the automatic feeding control system receives the instruction to place the stacked printing media, it controls the feeding platform 21' to descend to the initial position on the feeding bracket 22 by the corresponding rotation output of the feeding motor 1 and the rotational motion of the feeding screw transmission pair 1 to linear motion.

[0075] When the controller of the automatic feeding control system receives a start command, it controls the feeding platform 21' to rise on the feeding support 22 by the corresponding rotation output of the feeding motor 1 and the rotational motion of the feeding screw transmission pair 1 to linear motion, until the feeding detection sensor 1 detects the highest position signal of the current stacked printing media.

[0076] During the continuous feeding process of the printing operation, the feeding detection sensor continuously detects the highest position signal of the current stacked printing media. Based on this signal, the controller of the automatic feeding control system controls the feeding platform 21' to gradually rise on the feeding frame 22 until it rises to the set final position. Then, the feeding platform 21' is automatically or according to the manual setting command to lower on the feeding support 22 to the initial position.

[0077] Based on the sequential conveying path of the bottom-up S-shaped loop structure on the frame 1, to facilitate the arrangement of the feeding mechanism 2' on the frame 1 and its smooth connection with the first end of the first horizontal conveying section A, a feeding conveying section F is arranged at the feeding port of the feeding mechanism 2' to sequentially connect the feeding port of the feeding mechanism 2' to the first end of the first horizontal conveying section A. A conveying mechanism for conveying the printing medium in a set direction is arranged on the feeding conveying section F, so that the printing medium conveyed by the feeding mechanism 2' enters the first horizontal conveying section A via the feeding conveying section F. The feeding conveying section F is arranged on the feeding support 22 with an inclined structure.

[0078] The feeding mechanism 2" is located above the feeding mechanism 1 2'.

[0079] The feeding mechanism 2" has a feeding bracket 22 and a feeding platform 21" arranged on the feeding bracket 22 for placing stacked printing media.

[0080] The height of the feeding platform 21" on the feeding bracket 22 is adjustable via a linear sliding structure that allows it to rise and fall. Specifically, the feeding platform 21" of the feeding mechanism 2" is mounted vertically in the upper-middle region of the feeding bracket 22 (it should not interfere with the spatial position of the feeding mechanism 2', and is located above the feeding port of the feeding mechanism 2'). The feeding platform 21" is connected to a feeding screw drive pair 2 that controls the linear sliding motion. This feeding screw drive pair 2 mainly consists of a drive screw 2 and a nut 2. This feeding screw drive pair 2 has an automatic feeding control system 2, which includes a feeding detection sensor 2, a feeding motor 2, and a controller 2. The second lead screw of the second feed screw drive pair is rotatably mounted in the upper middle region of the feed support 22. The second nut of the second feed screw drive pair is fixedly connected to the second feed platform 21" and threadedly connected to the corresponding second lead screw. The second feed detection sensor of the second automatic feed control system is arranged at the feed port of the second feed mechanism 2" to dynamically detect the height position of the stacked printing media on the second feed platform 21" and to feed back the detected information of the current height position of the stacked printing media to the controller of the second automatic feed control system. The second feed motor of the second automatic feed control system is connected to the second lead screw of the second feed screw drive pair. Under the control command of the second controller, the second feed motor drives the second lead screw of the second feed screw drive pair to move, thereby converting the rotational motion into the linear motion of the second feed platform 21" on the feed support 22, so as to control the second feed platform 21" to rise / fall in the upper middle region of the feed support 22.

[0081] Specifically:

[0082] When the controller of the automatic feeding control system receives the instruction to place the stacked printing media, it controls the feeding platform 21" to descend to the initial position on the feeding bracket 22 by the corresponding rotation output of the feeding motor 2 and the rotational motion of the feeding screw transmission pair 2 to the linear motion.

[0083] When the controller of the automatic feeding control system receives a start command, it controls the feeding platform 21" to rise on the feeding support 22 by the corresponding rotation output of the feeding motor 2 and the rotational motion of the feeding screw transmission pair 2 to linear motion, until the feeding detection sensor 2 detects the highest position signal of the current stacked printing media.

[0084] During the continuous feeding process of the printing operation, the feeding detection sensor 2 continuously detects the highest position signal of the current stacked printing media. Based on this signal, the controller 2 controls the feeding platform 21" to gradually rise on the feeding frame 22 until it rises to the set final position. The controller 2 then automatically or according to the manual setting command controls the feeding platform 21" to descend on the feeding support 22 to the initial position.

[0085] Based on the arrangement of the aforementioned feeding mechanism 2' on the frame 1, and its sequential connection with the first horizontal conveying section A of the sequential conveying path of the S-shaped loop structure, a feeding bypass conveying mechanism H is arranged at the feeding port of the feeding mechanism 2" to sequentially connect the feeding port of the feeding mechanism 2" to the first end of the feeding conveying section F. That is, the feeding port of the feeding mechanism 2" is connected to the connection between the feeding port of the feeding mechanism 2' and the feeding conveying section F through the feeding bypass conveying mechanism H, so that the printing medium conveyed by the feeding mechanism 2" enters the first horizontal 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.

[0086] Based on the aforementioned redundant configuration of feeding mechanisms 12' and 2'", simultaneous feeding is not possible during printing; only single feeding is possible. Therefore, the feed rollers at the feed inlets of both feeding mechanisms 12' and 2' only rotate during current feeding; otherwise, they remain stationary. Their rotation is controlled by the printer's control system, which uses pre-set commands to switch feeding mechanisms 12' and 2'. Thus, assuming feeding mechanism 12' feeds first and feeding mechanism 2' is in standby mode, when the stacked printing media on feeding mechanism 12' is depleted, the control system switches to feeding mechanism 2' to continue feeding. This allows manual placement of stacked printing media on feeding mechanism 12' without interfering with continuous printer operation, enabling feeding mechanism 12' to function as a standby feeder. The same applies when feeding mechanism 2'' is depleted.

[0087] Since the structure of the printer of this utility model is much larger than 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 bracket 22 of the feeding mechanism 2 is assembled in a detachable combination structure at the corresponding end of the main frame 11 of the frame 1.

[0088] The receiving mechanism 3 has a receiving bracket 31 and a receiving platform 32 arranged on the receiving bracket 31 for collecting and storing printing media in a stack.

[0089] Specifically, the height of the receiving platform 32 on the receiving bracket 31 is adjusted using a linear sliding structure that allows it to rise and fall. The specific adjustment structure is as follows: the receiving platform 32 of the receiving mechanism 3 is mounted on the receiving bracket 31 using a vertical linear sliding structure. The receiving platform 32 is connected to a receiving screw drive pair three that controls the linear sliding motion. This receiving screw drive pair three mainly consists of a transmission screw three and a nut three. This receiving screw drive pair three has an automatic receiving control system three, which includes a receiving detection sensor three, a receiving motor three, and a controller three. The transmission screw three is rotatably mounted on the receiving bracket 31, and the nut three is fixedly connected to the receiving platform 32 and threadedly connected to the corresponding transmission screw three. The three receiving detection sensors of the automatic receiving control system 3 are arranged at the receiving port of the receiving mechanism 3. They are used to dynamically detect the height position of the printing media stack on the receiving platform 32 and feed back the detected information of the current height position of the printing media stack to the controller 3. The receiving motor 3 of the automatic receiving control system 3 is connected to the transmission screw 3 of the receiving screw drive pair 3. Under the control command of the controller 3, the receiving motor 3 is used to drive the transmission screw 3 of the receiving screw drive pair 3 to move, thereby converting the rotational motion into the linear motion of the receiving platform 32 on the receiving support 31, so as to control the receiving platform 32 to rise / fall on the receiving support 31.

[0090] Specifically:

[0091] When the controller receives an instruction to collect the printed media, it controls the receiving platform 32 to rise to the initial position on the receiving bracket 31.

[0092] As the printed media are stacked on the receiving platform 32, the receiving detection sensor 3 continuously detects the highest position signal of the current printing media stack. Based on this signal, the controller 3 controls the receiving platform 32 to gradually descend on the receiving frame 31 until it descends to the set final position. The controller 3 then automatically or according to the manual setting command controls the receiving platform 32 to rise on the receiving support 31 to the initial position.

[0093] Since the structure of the printer of this utility model is much larger than 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 receiving mechanism 3 is assembled in a detachable combination structure at the corresponding end of the main frame 11 of the frame 1.

[0094] To accommodate double-sided printing of the conveyed printing media, a first printing mechanism 5 is arranged on the first flat conveying section A, and a second printing mechanism 7 is arranged on the second flat conveying section C. The printing operation process is as follows, executed according to the printing task settings within the control system:

[0095] When only one side of the current printing medium needs to be printed, the printing medium conveyed by the feeding mechanism 2 will be transported along an S-shaped path 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. During the conveying process, according to the set instructions, the corresponding printing mechanism on the first horizontal conveying section A / the second horizontal conveying section C will print graphic information on the upper surface of the printing medium that has been conveyed there. The other printing mechanism will not work, and its conveying section will only be used for conveying the current printing medium.

[0096] When double-sided printing is required on the current printing medium, the printing medium conveyed by the feeding mechanism 2 is printed on the upward-facing surface by the first printing mechanism 5 on the first horizontal conveying section A. After being conveyed by the first vertical conveying section B, the printing medium with the first side printed is formed on the second horizontal conveying section C with the second side facing up and the first side facing down. After the second side is printed by the second printing mechanism 7, double-sided printing is completed. Then, it is conveyed to the receiving mechanism 3 by the second vertical conveying section D and the third horizontal conveying section E.

[0097] To ensure high-quality printing by ensuring consistent positioning of sequentially transported printing media by the first printing mechanism 5 and the second printing mechanism 7, a first correction mechanism 4 is provided upstream of the first printing mechanism 5 to correct the deviation of the transported single printing media, i.e., the first correction mechanism 4 and the first printing mechanism 5 are located on the first flat conveying section A; and a second correction mechanism 6 is provided upstream of the second printing mechanism 7 to correct the deviation of the transported single printing media, i.e., the second correction mechanism 6 and the second printing mechanism 7 are located on the second flat conveying section C.

[0098] The first printing mechanism 5 and the second printing mechanism 7 mentioned above both adopt inkjet printing structures.

[0099] The first correction mechanism 4 and the second correction mechanism 6 mentioned above have the same structure.

[0100] In this embodiment, the correction mechanism includes a cooperating oblique conveying mechanism and a wind-powered mechanism.

[0101] Specifically, the inclined conveying mechanism is an inclined roller drive structure, comprising multiple rotatable drive inclined rollers sequentially mounted on the frame 1 along the printing media conveying direction. These drive inclined rollers are rotatably mounted on the same plane on the frame 1, and adjacent drive inclined rollers maintain essentially the same mating clearance and inclination angle. The inclined conveying mechanism also has a guide side that protrudes along one side of the inclined conveying mechanism in the printing media conveying direction. This guide side is fixedly connected to the frame 1 and is stationary relative to the drive inclined rollers. Moreover, the guide side aligns with the positioning reference of the downstream printing mechanism that it mates with. Each drive inclined roller mates with the guide side at an acute angle in the printing media conveying direction.

[0102] The wind-powered mechanism includes a fan bracket and multiple sets of electric fans arranged on the fan bracket. The fan bracket is fixed to the frame 1 and positioned above the inclined conveyor mechanism. The electric fans are arranged on the fan bracket along the direction of the printing media transport, and their positions roughly correspond to the longitudinal length of the transmission and transport area of ​​the inclined conveyor mechanism. The air outlet of the wind-powered mechanism faces the transmission and transport area of ​​the inclined conveyor mechanism, and the direct transport path of the airflow from the wind-powered mechanism, with the guide side as a reference, is perpendicular to the plane of action of the inclined conveyor mechanism; that is, the direct transport path of the airflow from the wind-powered mechanism is basically parallel to the guide surface of the guide side.

[0103] In the coordination between the wind-powered mechanism and the inclined conveying mechanism, the air force blown by the wind-powered mechanism cannot cover the lateral width of the currently conveyed printing medium in the transverse direction (with the printing medium conveying direction as the longitudinal direction). It can only act on the area of ​​the currently conveyed printing medium near the guide side. That is, the direct action area of ​​the air force blown by the wind-powered mechanism in the transmission and conveying area of ​​the inclined conveying mechanism should be close to the guide side. Only in this way can it work with the inclined conveying mechanism to dynamically turn and correct the printing medium during conveying.

[0104] Typically, the air pressure exerted by each electric fan of the wind power mechanism on the printed medium being transported should be controlled within the range of 2 to 50 Pa, preferably within the range of 5 to 10 Pa.

[0105] The conveying mechanisms at each of 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 commonly used paper conveying mechanisms, such as wide-band conveyor belts, or wide-band conveyor belts combined with paper-pressing conveyor belts to form guiding conveying channels, etc. There are no specific requirements for this, but any conveying mechanism that realizes paper transmission is acceptable. Of course, these conveying mechanisms should not interfere with other relative structures arranged at the corresponding positions. For example, the conveying mechanism that cooperates with the printing mechanism should not form a paper-pressing conveyor belt to prevent interference with the operation of the printing mechanism.

[0106] Example 2

[0107] The rest of the content of this embodiment is the same as that of embodiment 1, except that:

[0108] The correction mechanism is a roller clamping friction structure disclosed in the prior art.

[0109] Of course, the time required for the roller clamping and friction correction process of this correction mechanism will directly affect the transmission efficiency of the printing media.

[0110] Example 3

[0111] The rest of the content of this embodiment is the same as that of embodiment 1, except that:

[0112] Remove the corrective action agency.

[0113] Of course, the correction function will also be eliminated.

[0114] Example 4

[0115] The rest of the content of this embodiment is the same as that of embodiment 1, except that:

[0116] The corresponding supports of the feeding mechanism and the receiving mechanism are integrally formed with the main frame of the machine frame and cannot be disassembled.

[0117] Of course, the adjustable volume function of the structure will also be eliminated, which places higher technical requirements on the transportation space.

[0118] Example 5

[0119] The rest of the content of this embodiment is the same as that of embodiment 1 or 4, except that:

[0120] The feeding mechanism adopts a single structure, that is, the feeding mechanism 2 / feeding mechanism 1 is removed, and only feeding mechanism 1 / feeding mechanism 2 is retained.

[0121] The removal of the second feeding mechanism will inevitably involve the removal of the feeding bypass conveying mechanism.

[0122] Of course, the corresponding functions will also be eliminated.

[0123] Example 6

[0124] The rest of the content of this embodiment is the same as that of embodiment 1, except that:

[0125] Based on the sequential conveying path of the S-shaped loop structure in Example 1, a reverse conveying is formed from the third flat conveying section to the first flat conveying section; thus, the feeding port of the receiving mechanism is sequentially connected to the end of the third flat conveying section in Example 1, and the receiving mechanism is connected to the beginning of the first flat conveying section in Example 1, forming a top-to-bottom conveying path from the third flat conveying section to the first flat conveying section in Example 1.

[0126] In this embodiment, the receiving mechanism can adopt a single structure or a redundant configuration structure; if it is a redundant configuration structure, the feeding mechanism located at the bottom needs to be connected between the feeding port of the feeding mechanism at the top and the tail end of the third horizontal conveying section through a feeding bypass conveying mechanism.

[0127] Example 7

[0128] The rest of the content of this embodiment is the same as that of embodiment 1, except that:

[0129] The feeding screw drive pair of the feeding mechanism can be replaced by a synchronous belt drive structure;

[0130] Similarly, the receiving screw drive pair of the receiving mechanism can be replaced by a synchronous belt drive structure.

[0131] While this embodiment achieves its technical objective, it slightly complicates the forming structure of the feeding / receiving mechanism.

[0132] The above embodiments are only used to illustrate the present invention and are not intended to limit it.

[0133] 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; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to 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) and 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 sheets of printing media in the stacked printing media from supply to collection; The sequential conveying path is equipped with printing mechanisms that print corresponding graphic information on the currently conveyed single printing medium. Its features are: 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) connected in sequence in the height direction of the frame (1). 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). Each conveying section has at least one conveying mechanism for conveying a single sheet of printing media in a set direction. The feeding mechanism (2) is connected to the first flat conveying section (A), and the receiving mechanism (3) is connected to the third flat conveying section (E); or, the feeding mechanism (2) is connected to the third flat conveying section (E), and the receiving mechanism (3) is connected to the first flat 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 connected to the first flat conveying section (A), and the receiving mechanism (3) is connected to the third flat conveying section (E). Furthermore, the sequential conveying path also includes a feeding conveying section (F) arranged between the feeding port of the feeding mechanism (2) and the first flat conveying section (A), wherein the feeding conveying section (F) is sequentially connected between the feeding port of the feeding mechanism (2) and the first flat conveying section (A); The feeding conveying section (F) is equipped with a conveying mechanism that transports the single printing media separated by the feeding mechanism (2) to the first flat conveying section (A) in a set direction.

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 bracket (22) and a feeding platform (21) arranged on the feeding bracket (22) for placing stacked printing media. The height of the feeding platform (21) on the feeding bracket (22) is adjusted by a linear sliding structure that can be raised / lowered.

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 mounted on the feeding bracket (22) with a linear sliding structure, and the feeding platform (21) is connected to a feeding screw transmission pair for controlling the linear sliding action. The feeding screw drive pair has an automatic feeding control system, which includes a feeding detection sensor, a feeding motor, and a controller. The feeding detection sensors are arranged at the feeding port and are used to detect the height position of the stacked printing media on the feeding platform (21) and to feed back the detected information on the current height position of the stacked printing media to the controller. The feeding motor is connected to the feeding screw drive pair. Under the control command of the controller, the feeding motor is used to drive the feeding screw drive pair to control the feeding platform (21) to rise / fall on the feeding bracket (22).

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

6. The high-speed printer for printing stacked printing media according to claim 1, 2, 4 or 5, characterized in that: The feeding mechanism (2) of the high-speed printer is configured in two redundant sets; The two sets of feeding mechanisms (2) share the same feeding bracket (22) and are arranged in high and low layers on the common feeding bracket (22); Among them, the feeding port of the feeding mechanism 1 (2ˊ) is connected to the corresponding conveying section of the sequential conveying path; The feeding port of feeding mechanism two (2") is connected to the feeding port of feeding mechanism one (2ˊ) and the sequential conveying path through the feeding bypass conveying mechanism (H); During the printing process, the control system controls the feeding mechanism 1 (2ˊ) and feeding mechanism 2 (2") to switch feeding according to the set instructions.

7. The high-speed printer for printing stacked printing media according to claim 1 or 2, characterized in that: The receiving mechanism (3) has a receiving bracket (31) and a receiving platform (32) arranged on the receiving bracket (31) for collecting and storing printing media in a stack. The height position of the receiving platform (32) on the receiving bracket (31) is adjusted by a linear sliding structure that can be raised / lowered.

8. The high-speed printer for printing stacked printing media according to claim 7, characterized in that: The receiving platform (32) of the receiving mechanism (3) is mounted on the receiving bracket (31) with a linear sliding structure, and the receiving platform (32) is connected to a receiving screw drive pair for controlling the linear sliding action; The take-up screw drive pair has an automatic take-up control system, which includes a take-up detection sensor, a take-up motor, and a controller. The receiving detection sensor is arranged at the receiving port and is used to detect the height position of the printing media stack on the receiving platform (32) and to feed back the detected information of the current height position of the printing media stack to the controller. The receiving motor is connected to the receiving screw drive pair. Under the control command of the controller, the receiving motor is used to drive the receiving screw drive pair to control the receiving platform (32) to rise / fall on the receiving bracket (31).

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

10. The high-speed printer for printing stacked 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 a 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 print graphic information on the corresponding side of the currently conveyed single printing medium.

11. The high-speed printer for printing stacked 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 correction mechanism (4) is provided upstream of the first printing mechanism (5) for correcting the deviation of the single printing medium being conveyed. And / or, upstream of the second printing mechanism (7), a second correction mechanism (6) is provided for correcting the deviation of the single printing medium being transported.

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