A paper roll feeding mechanism for a dual-paper simultaneous printing system

Abstract

This utility model belongs to the field of printing equipment, and particularly relates to a paper roll feeding mechanism for a simultaneous dual-paper printing system. It includes a feeding conveyor frame and a paper roll conveying unit mounted on the feeding conveyor frame. The feeding conveyor frame includes a front feeding conveyor frame and a rear feeding conveyor frame, which are spaced apart. Each of the front and rear feeding conveyor frames is equipped with a paper roll conveying unit. A connecting frame is also provided between the front and rear feeding conveyor frames, located on top of both frames. The connecting frame is equipped with guide rollers. This utility model, by arranging the two feeding conveyor frames one in front of the other and altering their conveying paths, enables the simultaneous feeding of two paper strips to a roll-to-roll offset book printing press, thereby achieving dual-paper feeding and solving the feeding problem of simultaneous dual-paper printing systems.

Description

Technical Field

[0001] This utility model belongs to the field of printing equipment, and in particular relates to a paper roll feeding mechanism for 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), while the existing feeding conveyor can only transport a single sheet of paper. Therefore, how to achieve simultaneous transport of two sheets of paper is a problem that needs to be solved. Utility Model Content

[0004] This utility model addresses the problem of simultaneous feeding of two sheets of paper in existing feeding conveyor frames by proposing a paper roll feeding mechanism for a dual-paper simultaneous printing system that is reasonably designed, simple in structure, and can realize simultaneous feeding of 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 paper roll feeding mechanism for a dual-paper simultaneous printing system, including a feeding conveyor frame and a paper roll conveying unit disposed on the feeding conveyor frame. The feeding conveyor frame includes a front feeding conveyor frame and a rear feeding conveyor frame, which are spaced apart. A paper roll conveying unit is disposed on both the front and rear feeding conveyor frames. A connecting frame is also disposed between the front and rear feeding conveyor frames. The connecting frame is disposed on the top of the front and rear feeding conveyor frames. A guide roller is disposed on the connecting frame. The paper strip on the rear feeding conveyor frame is conveyed to the front end of the front feeding conveyor frame through the guide roller of the connecting frame. A conveying roller that cooperates with the guide roller is disposed at the front end of the front feeding conveyor frame. A secondary conveying roller is also disposed at the front end of the front feeding conveyor frame. The paper strip on the front feeding conveyor frame is conveyed to the front end of the front feeding conveyor frame through the secondary conveying roller. The secondary conveying roller is disposed above the secondary conveying roller.

[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 rear feeding conveyor to the front 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 front feeding conveyor frame, 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 paper roll feeding mechanism for a dual-paper simultaneous printing system. By setting the existing two feeding conveyors one in front of the other and changing their conveying paths, it enables two paper rolls to be simultaneously fed to the roll-to-roll book and magazine printing machine, thereby realizing dual-paper conveying and solving the conveying problem of the dual-paper simultaneous printing system. 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 paper roll feeding mechanism for the dual-paper simultaneous printing system provided in Example 1;

[0014] Figure 2 This is a front view of the paper roll feeding mechanism for the dual-paper simultaneous printing system provided in Example 1;

[0015] In the above figures, 1. Front feeding conveyor frame; 11. Conveyor roller; 12. Secondary conveyor roller; 2. Rear feeding conveyor frame; 3. Paper roll conveying unit; 4. Tensioning roller; 5. Connecting frame; 51. First guide roller; 52. Second guide roller; 53. Third guide roller; 54. Auxiliary guide roller; 55. Conveyor motor; 6. Paper roll. Detailed Implementation

[0016] 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.

[0017] 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.

[0018] Example 1, such as Figure 1 , Figure 2 As shown, this embodiment aims to achieve simultaneous conveying of two paper strips in the same direction to facilitate the implementation of a dual-paper simultaneous printing system. To achieve this objective, the paper roll feeding mechanism for the dual-paper simultaneous printing system provided in this embodiment includes a feeding conveyor frame and a paper roll conveying unit 3 disposed on the feeding conveyor frame. The above components are existing mature components, and no improvements are made to them in this embodiment.

[0019] Since the existing paper roll conveying unit 3 can only convey one paper roll 6, in this embodiment, the feeding conveyor includes a front feeding conveyor 1 and a rear feeding conveyor 2, both of which are existing products.

[0020] In order to ensure the conveying of paper tape, in this embodiment, the front feeding conveyor 1 and the rear feeding conveyor 2 are spaced apart, and both the front feeding conveyor 1 and the rear feeding conveyor 2 are equipped with paper roll conveying units 3.

[0021] To achieve simultaneous conveying, in this embodiment, a connecting frame 5 is also provided between the front feeding conveyor 1 and the rear feeding conveyor 2. The connecting frame 5 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. Guide rollers are provided on the connecting frame 5. In this way, the paper tape on the rear feeding conveyor 2 is conveyed to the front end of the front feeding conveyor 1 through the guide rollers of the connecting frame 5. Since the guide rollers are located on the front feeding conveyor 1 and the rear feeding conveyor 2... The paper tape is positioned at the top of the feed end of the existing roll-to-roll book printing press, which is lower than this height. Therefore, to stabilize the paper tape delivery, a conveyor roller 11 that cooperates with the guide roller is installed at the front end of the front feeder 1. The conveyor roller 11 delivers the paper tape downwards and provides tension. Simultaneously, a secondary conveyor roller 12 is also installed at the front end of the front feeder 1. The paper tape on the front feeder 1 is conveyed to the front end of the front feeder 1 via the secondary conveyor roller 12. The conveyor roller 11 is positioned above the secondary conveyor roller 12. In this way, the paper tape on the front feeder 1 is conveyed from within the front feeder 1, and the two paper tapes are conveyed with a vertical drop, thus achieving simultaneous delivery of two paper tapes without interference.

[0022] To ensure the stability of paper feeding, the paper needs to be tensioned. Therefore, tension rollers 4 are installed on both the front feeding conveyor 1 and the rear feeding conveyor 2. The tension rollers 4 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 4 on the rear feeding conveyor 2 tensions the paper strip through its interaction with the guide roller, while the guide roller on the front feeding conveyor 1 cooperates with the secondary conveying roller 12 to achieve the same tension.

[0023] Because the rear feeder 2 is far from the roll-to-roll book printing press, it is difficult to ensure the tension of the paper belt throughout the entire conveying path by relying solely on the traction of the paper by the roll-to-roll book printing press. Therefore, the guide rollers are actively rotated and mounted on the connecting frame 5. Specifically, the guide rollers include a first guide roller 51, a second guide roller 52, and a third guide roller 53 arranged sequentially from the rear feeder 2 to the front feeder 1, with the first guide roller 51, second guide roller 52, and third guide roller 53 arranged alternately vertically. Meanwhile, a conveyor motor 55 is mounted on the top of the rear feeder 2. The conveyor motor 55 is connected to the first guide roller 51 by a belt, the first guide roller 51 is connected to the second guide roller 52 by a belt, and the second guide roller 52 is connected to the third guide roller 53 by a belt. Alternatively, they can be connected by a chain. In this way, one conveyor motor 55 enables the simultaneous rotation of all three guide rollers, and the alternate vertical arrangement of the first guide roller 51, second guide roller 52, and third guide roller 53 facilitates the passage and tensioning of the paper belt.

[0024] Considering that the web-fed offset printing press itself exerts traction on the paper tape during printing, to simplify control, in this embodiment, an auxiliary guide roller 54 is also provided on the top of the front feeding conveyor 1, and the auxiliary guide roller 54 is positioned close to the conveyor roller 11. The auxiliary guide roller 54 rotates passively, thus creating a buffer between the web-fed offset printing press and the third guide roller 53, avoiding the need for precise control of its rotation speed and reducing the difficulty of control.

[0025] 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.

[0026] 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 paper roll feeding mechanism for a dual-paper simultaneous printing system, comprising a feeding conveyor frame and a paper roll conveying unit disposed on the feeding conveyor frame, characterized in that, The feeding conveyor frame includes a front feeding conveyor frame and a rear feeding conveyor frame, which are spaced apart. Both the front and rear feeding conveyor frames are equipped with paper roll conveying units. A connecting frame is also provided between the front and rear feeding conveyor frames, located at the top of both frames. A guide roller is provided on the connecting frame. The paper strip on the rear feeding conveyor frame is conveyed to the front end of the front feeding conveyor frame via the guide roller of the connecting frame. A conveying roller that cooperates with the guide roller is provided at the front end of the front feeding conveyor frame. A secondary conveying roller is also provided at the front end of the front feeding conveyor frame, conveying the paper strip on the front feeding conveyor frame to the front end via the secondary conveying roller, which is positioned above the secondary conveying roller.

2. The paper roll feeding mechanism for a 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 paper roll feeding mechanism for a 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 paper roll feeding mechanism for a 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 rear feeding conveyor to the front feeding conveyor, with the first guide roller, the second guide roller, and the third guide roller arranged alternately vertically.

5. The paper roll feeding mechanism for 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 front feeding conveyor frame, and the auxiliary guide roller is located close to the conveyor roller.

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