Double-paper simultaneous printing system

Abstract

The utility model belongs to the field of printing equipment, and particularly relates to a double-paper simultaneous printing system. Comprising a feeding conveying frame and a printing unit which are sequentially arranged in the paper tape conveying direction, a paper roll conveying unit is arranged on the feeding conveying frame, and the printing unit comprises a front book and periodical printing machine and a rear book and periodical printing machine which are arranged in the paper tape conveying direction in a spaced mode. The printing units comprise the first printing unit and the second printing unit which are sequentially arranged in the paper tape conveying direction, the two existing discharging conveying frames and the printing units are arranged front and back, the conveying path of the two existing discharging conveying frames and the printing units is changed, and therefore the two paper tapes can be conveyed to the printing units at the same time; therefore, the two paper tapes can share one set of follow-up processing device, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of printing equipment, and in particular relates to a dual-paper simultaneous printing system. Background Technology

[0002] With the continuous advancement of science and technology, the printing of books and periodicals has now achieved fully automated printing. This mainly includes a feeding conveyor and a roll-to-roll book and periodical printing machine. The feeding conveyor is used to place and rotate the paper roll, while the roll-to-roll book and periodical printing machine prints the paper pulled from the feeding conveyor, thus achieving automated printing.

[0003] After the books and periodicals are printed, folding and cutting processes are still required. In actual production, it has been found that the folding process can be completed simultaneously with two sheets of paper (two printed paper strips). Therefore, the question is how to achieve simultaneous printing of two sheets of paper and make them stacked on top of each other after entering the subsequent processes. This would allow them to share a set of folding and cutting equipment, thereby improving production efficiency and reducing production costs. Utility Model Content

[0004] This invention addresses the technical problem of how to achieve simultaneous printing on two sheets of paper by proposing a dual-sheet printing system that is reasonably designed, simple in structure, easy to process, and capable of simultaneous printing on two sheets of paper.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a dual-paper simultaneous printing system, including a feeding conveyor frame and a printing unit arranged sequentially along the paper belt conveying direction. A paper roll conveying unit is provided on the feeding conveyor frame. The printing unit includes a front book and magazine printing machine and a rear book and magazine printing machine arranged at intervals along the paper belt conveying direction. The printing unit includes a first printing unit and a second printing unit arranged sequentially along the paper belt conveying direction. The feeding conveyor frame includes a front feeding conveyor frame and a rear feeding conveyor frame arranged sequentially along the paper belt conveying direction, spaced apart from each other. A paper roll conveying unit is provided on both the front and rear feeding conveyor frames. A connecting frame is also provided between the front and rear feeding conveyor frames. The connecting frame is located at the front feeding conveyor frame. The top of the feeding frame and the rear feeding conveyor are equipped with guide rollers on the connecting frame. The rear end of the rear feeding conveyor is equipped with a conveying roller that cooperates with the guide rollers. The paper tape on the front feeding conveyor is conveyed to the paper feed end of the front book and magazine printing machine of the first printing unit through the cooperation of the guide rollers of the connecting frame and the conveying roller. Feeding rollers are provided below the paper feed ends of the front and rear book and magazine printing machines of the first printing unit. A secondary conveying roller is also provided at the rear end of the rear feeding conveyor. The paper tape on the rear feeding conveyor is conveyed to the primary feeding roller through the secondary conveying roller. The conveying roller is located above the secondary conveying roller. A secondary feeding roller is provided at the top of the second printing unit. The paper tape output from the paper output end of the first printing unit is conveyed to the secondary feeding roller. The paper tape output from the feeding roller enters the paper feed end of the second printing unit.

[0006] Preferably, both the front and rear feeding conveyors are equipped with tension rollers, which are located close to the paper roll conveying unit and are rotatably mounted on either the front or rear feeding conveyor.

[0007] Preferably, the guide roller is actively rotated and mounted on the connecting frame.

[0008] Preferably, the guide roller includes a first guide roller, a second guide roller, and a third guide roller arranged sequentially from the front feeding conveyor to the rear feeding conveyor, with the first guide roller, the second guide roller, and the third guide roller being arranged alternately vertically.

[0009] Preferably, an auxiliary guide roller is also provided on the top of the rear feeding conveyor, and the auxiliary guide roller is positioned close to the conveyor roller.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] This utility model provides a dual-paper simultaneous printing system. By setting up the existing two feeding conveyors and printing unit in front and behind each other and changing their conveying paths, it enables two paper tapes to be fed to the printing unit at the same time and complete the simultaneous printing of two papers. This allows the two paper tapes to share a set of post-processing equipment, thereby reducing production costs and improving production efficiency. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the dual-paper simultaneous printing system provided in Example 1;

[0014] Figure 2 A schematic diagram of the dual-paper simultaneous printing system provided in Example 1 from another angle;

[0015] Figure 3 This is a front view of the dual-paper simultaneous printing system provided in Example 1;

[0016] In the above figures, 1. Front feeding conveyor frame; 2. Rear feeding conveyor frame; 21. Conveyor roller; 22. Secondary conveyor roller; 3. Paper roll conveying unit; 4. First printing press unit; 41. Front book and magazine printing press; 42. Rear book and magazine printing press; 43. Feeding roller; 5. Second printing press unit; 51. Secondary conveyor roller; 6. Tensioning roller; 7. Connecting frame; 71. First guide roller; 72. Second guide roller; 73. Third guide roller; 74. Auxiliary guide roller; 75. Conveyor motor; 8. Paper roll; 81. Paper tape. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0019] Example 1, as Figures 1-3As shown, this embodiment aims to provide a dual-paper simultaneous printing system, enabling two paper tapes 81 to be printed simultaneously and share a single folding device, thereby improving production efficiency and reducing production costs. Simultaneously, considering minimizing floor space, the dual-paper simultaneous printing system provided in this embodiment includes a feeding conveyor and a printing unit arranged sequentially along the paper tape 81 conveying direction. A paper roll conveying unit 3 is provided on the feeding conveyor, which holds the paper roll 8 and completes the conveying of the paper tape 81 by rotation. The printing unit includes a front book printing machine 41 and a rear book printing machine 42 arranged at intervals along the paper tape 81 conveying direction. The cooperation between the front and rear book printing machines 41 is mainly to facilitate double-sided printing. The above structure is the equipment of a conventional book printing system, and therefore, it will not be described in detail in this embodiment.

[0020] To achieve simultaneous printing and conveying of two sheets of paper, in this embodiment, the printing unit includes a first printing unit 4 and a second printing unit 5 sequentially along the conveying direction of the paper belt 81. Both the first printing unit 4 and the second printing unit 5 include a front book printing machine 41 and a rear book printing machine 42. The unloading conveyor includes a front unloading conveyor 1 and a rear unloading conveyor 2 sequentially arranged along the conveying direction of the paper belt 81. In this embodiment, both the printing unit and the unloading conveyor are existing products. In this embodiment, only the number of corresponding devices is increased in the traditional printing system, without improving their functions.

[0021] To achieve simultaneous conveying, in this embodiment, a connecting frame 7 is also provided between the front feeding conveyor 1 and the rear feeding conveyor 2. The connecting frame 7 includes two parallel connecting rods, which are made of structural steel and are fixed to the top of the front feeding conveyor 1 and the rear feeding conveyor 2 by welding. A guide roller is provided on the connecting frame 7. In this way, the paper tape 81 on the front feeding conveyor 1 is conveyed to the rear end of the rear feeding conveyor 2 (with the direction of the paper roll as the front end) through the guide roller of the connecting frame 7. At the top of the front feeding conveyor 1 and the rear feeding conveyor 2, the height of the feed end of the existing book and magazine printing machine is lower than this height. Therefore, in order to stably convey the paper belt 81, a conveying roller 21 that cooperates with the guide roller is provided at the front end of the front feeding conveyor 1. The conveying roller 21 realizes the downward conveying of the paper belt 81 and plays a tensioning role. In this way, the paper belt 81 of the front feeding conveyor 1 is conveyed to the paper feed end of the front book and magazine printing machine 41 of the first printing unit 4 through the cooperation of the guide roller of the connecting frame 7 and the conveying roller 21.

[0022] To handle the paper strip 81 from the paper roll on the rear feeding conveyor 2, a secondary conveying roller 22 is installed at the front end of the rear feeding conveyor 2. Simultaneously, feeding rollers 43 are installed below the paper feed ends of both the front and rear book and periodical printing presses 41 and 42 of the first printing unit 4. The feeding rollers 43 can be driven by the motors built into the front and rear book and periodical printing presses 41 and driven by a separate chain, or they can be driven by a separate motor. In this way, the paper strip 81 on the rear feeding conveyor 2 is conveyed to the feeding rollers 43 via the secondary conveying roller 22. Simultaneously, the paper strip 81 on the rear feeding conveyor 2 is conveyed from within the rear feeding conveyor 2, and the two paper strips 81 are conveyed with a vertical drop, thus achieving simultaneous conveying of the two paper strips 81 without interference.

[0023] In order to complete simultaneous printing, in this embodiment, a secondary feeding roller 51 is provided on the top of the second printing unit 5. There are multiple secondary feeding rollers 51, and their main purpose is to achieve tensioning and conveying of the paper tape 81. Since the distance between the two book and magazine printing machines in the second printing unit 5 is small, the secondary feeding rollers 51 are passively rotated.

[0024] In this way, the paper tape 81 output from the paper output end of the first printing unit 4 is conveyed to the secondary feed roller 51, and then conveyed to the folding mechanism via the secondary feed roller 51. At the same time, the paper tape 81 output from the feed roller 43 enters the paper input end of the second printing unit 5, and then enters the folding mechanism from the paper output end of the second printing unit 5. The two paper tapes 81 overlap at the paper input end of the folding mechanism.

[0025] By changing the position of the paper tape 81 conveyed by the front feeding conveyor 1, the position of the rear feeding conveyor 2 entering the first printing unit 4, the position of the paper tape 81 of the front feeding conveyor 1 entering the second printing unit 5, and the position of the rear feeding conveyor 2 entering the second printing unit 5, the simultaneous conveying and printing of the two paper tapes 81 and their entry into the folding mechanism in a stacked state are finally achieved, thereby realizing the purpose of sharing a set of folding equipment.

[0026] To ensure the stability of paper feeding, the paper needs to be tensioned. Therefore, tension rollers 6 are installed on both the front feeding conveyor 1 and the rear feeding conveyor 2. The tension rollers 6 are positioned close to the paper roll conveying unit 3 and are rotatably mounted on either the front feeding conveyor 1 or the rear feeding conveyor 2. Specifically, the tension roller 6 on the front feeding conveyor 1 tensions the paper strip 81 through its interaction with the guide roller, while the guide roller on the rear feeding conveyor 2 cooperates with the secondary conveying roller 22 to tension the paper strip 81.

[0027] Because the front feeding conveyor 1 is far from the roll-to-roll book printing press, it is difficult to ensure the tension of the paper strip 81 throughout the entire conveying path by relying on the traction of the paper by the book printing press. Therefore, the guide rollers are actively rotated and mounted on the connecting frame 7. Specifically, the guide rollers include a first guide roller 71, a second guide roller, and a third guide roller 73 arranged sequentially from the front feeding conveyor 1 to the rear feeding conveyor 2, with the first guide roller 71, the second guide roller, and the third guide roller 73 arranged alternately vertically. At the same time, a conveyor motor 75 is installed at the top of the front feeding conveyor 1. The conveyor motor 75 is connected to the first guide roller 71 by a belt, the first guide roller 71 is connected to the second guide roller 72 by a belt, and the second guide roller 72 is connected to the third guide roller 73 by a belt. Of course, they can also be connected by a chain. In this way, the three guide rollers rotate simultaneously through one conveyor motor 75, and the alternate vertical arrangement of the first guide roller 71, the second guide roller 72, and the third guide roller 73 is to facilitate the passage and tensioning of the paper strip 81.

[0028] Considering that the printing press itself exerts traction on the paper tape 81 during printing, to simplify control, in this embodiment, an auxiliary guide roller 74 is also provided on the top of the rear feeding conveyor 2, and the auxiliary guide roller 74 is positioned close to the conveyor roller 21. The auxiliary guide roller 74 rotates passively, thus creating a buffer between the printing press and the third guide roller 73, avoiding the need for precise control of its rotation speed and reducing the difficulty of control.

[0029] Additionally, it should be noted that any roller mentioned in this embodiment is rotatable; the only difference between different rollers is whether they rotate actively or passively.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A dual-paper simultaneous printing system, comprising a feeding conveyor and a printing press arranged sequentially along the paper belt conveying direction, wherein a paper roll conveying unit is provided on the feeding conveyor, and the printing press includes a front book printing press and a rear book printing press arranged at intervals along the paper belt conveying direction, characterized in that, The printing press unit includes a first printing press unit and a second printing press unit sequentially along the paper belt conveying direction. The unloading conveyor frame includes a front unloading conveyor frame and a rear unloading conveyor frame sequentially arranged along the paper belt conveying direction, spaced apart from each other. Both the front and rear unloading conveyor frames are equipped with paper roll conveying units. A connecting frame is also provided between the front and rear unloading conveyor frames, located at the top of both frames. Guide rollers are provided on the connecting frame. A conveying roller cooperating with the guide rollers is provided at the rear end of the rear unloading conveyor frame. The front unloading conveyor... The paper tape on the frame is conveyed to the paper feed end of the front book and magazine printing press of the first printing unit through the cooperation of the guide rollers and conveyor rollers of the connecting frame. Feeding rollers are provided below the paper feed ends of the front and rear book and magazine printing presses of the first printing unit. A secondary conveyor roller is also provided at the rear end of the rear unloading conveyor frame. The paper tape on the rear unloading conveyor frame is conveyed to the feeding roller through the secondary conveyor roller. The conveyor roller is located above the secondary conveyor roller. A secondary feeding roller is provided at the top of the second printing unit. The paper tape output from the paper output end of the first printing unit is conveyed to the secondary feeding roller. The paper tape output from the feeding roller enters the paper feed end of the second printing unit.

2. The dual-paper simultaneous printing system according to claim 1, characterized in that, Both the front and rear feeding conveyors are equipped with tension rollers, which are located close to the paper roll conveying unit and are rotatably mounted on either the front or rear feeding conveyor.

3. The dual-paper simultaneous printing system according to claim 2, characterized in that, The guide roller is actively rotated and mounted on the connecting frame.

4. The dual-paper simultaneous printing system according to claim 3, characterized in that, The guide rollers include a first guide roller, a second guide roller, and a third guide roller arranged sequentially from the front feeding conveyor to the rear feeding conveyor, with the first guide roller, the second guide roller, and the third guide roller arranged alternately vertically.

5. A dual-paper simultaneous printing system according to claim 4, characterized in that, An auxiliary guide roller is also provided on the top of the rear feeding conveyor, and the auxiliary guide roller is positioned close to the conveyor roller.

Images