Printing machine

Abstract

The utility model relates to the technical field of printing, and provides a printing machine which comprises a machine frame. The paper supply unit is arranged on the rack and used for supplying paper; the tensioning unit is arranged on the rack, the tensioning unit is used for tensioning paper, and the paper supply unit forms a conveying direction towards the tensioning unit; the first printing unit is arranged on the rack and located behind the tensioning unit in the conveying direction, and the first printing unit is used for printing one face of the paper; the overturning unit is arranged on the rack and located behind the first printing unit in the conveying direction, and the overturning unit is used for overturning the paper; the second printing unit is arranged on the rack and located behind the overturning unit in the conveying direction, and the second printing unit is used for printing the other face of the paper; and the paper folding unit is arranged on the rack and located behind the second printing unit in the conveying direction, and the paper folding unit is used for folding paper. By means of the technical scheme, the problems that in the related technology, when a printer is used for printing large-size paper, equipment is large in size, operation is complex, and maintenance cost is high through one printing unit are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing, and specifically, to a printing press. Background Art

[0002] Traditional single-sided printing presses usually have only one printing unit for printing on one side of the paper. This design is efficient for printing single-sided documents, but it is not flexible enough when double-sided printing is required. To achieve double-sided printing, the paper usually needs to be manually flipped or an additional device is used for paper flipping, which not only increases the complexity of the operation but also reduces the printing efficiency.

[0003] Challenges of double-sided printing presses Double-sided printing presses achieve automatic flipping of the paper by adding a flipping unit, so as to print on both sides of the paper. However, existing double-sided printing presses have some deficiencies in design, especially when dealing with large-sized or special material papers. For example, newspaper printing presses need to process a large number of large-sized papers, and existing flipping units often have difficulty meeting this requirement, resulting in a large-sized device, complex operation, and high maintenance costs. Summary of the Utility Model

[0004] The utility model provides a printing press, which solves the problems in the related art that when printing large-sized papers, the printing press has a large-sized device, complex operation, and high maintenance costs with only one printing unit.

[0005] The technical solution of the utility model is as follows:

[0006] A printing press, comprising:

[0007] A frame;

[0008] A paper feeding unit, arranged on the frame, and the paper feeding unit is used to provide paper;

[0009] A tensioning unit, arranged on the frame, and the tensioning unit is used to tension the paper, and the paper feeding unit forms a conveying direction towards the tensioning unit;

[0010] A first printing unit, arranged on the frame, and the first printing unit is located behind the tensioning unit along the conveying direction, and the first printing unit is used to print on one side of the paper;

[0011] A flipping unit, arranged on the frame, and located behind the first printing unit along the conveying direction, and the flipping unit is used to flip the paper;

[0012] A second printing unit, which is arranged on the frame, and the second printing unit is located behind the flipping unit along the conveying direction, and the second printing unit is used for printing on the other side of the paper;

[0013] An origami unit, which is arranged on the frame and is located behind the second printing unit along the conveying direction, and the origami unit is used for folding the paper.

[0014] Optionally, the paper feeding unit includes:

[0015] Two abutting rollers, both of the two abutting rollers are rotatably arranged on the frame and are respectively located on both sides of the frame;

[0016] A paper winding roller, the paper winding roller is used for winding the paper, and both of the two abutting rollers are abutted and arranged on both sides of the paper winding roller. After the abutting rollers rotate, they are used to drive the paper winding roller to rotate.

[0017] Optionally, the tensioning unit includes:

[0018] A plurality of tensioning rollers, and a plurality of the tensioning rollers are spaced apart and floatingly arranged on the frame. The paper is used to wind around the tensioning rollers. After the tensioning rollers float, they are used to tension or not tension the paper.

[0019] Optionally, it further includes:

[0020] Two printing platforms, both of the two printing platforms are used for conveying the paper, and the two printing platforms are respectively located below the first printing unit and the second printing unit.

[0021] Optionally, the flipping unit includes:

[0022] Two guiding rollers, both of the two guiding rollers are arranged on the frame, the two guiding rollers are vertically arranged, and both of the two guiding rollers are arranged at 90° to the conveying direction. The guiding rollers are used for winding the paper. After the paper winds around the two guiding rollers, it is used to adjust the direction of the paper.

[0023] Optionally, the guiding roller has a plurality of air holes. After the air holes eject air, they are used to adjust the distance between the paper and the surface of the guiding roller.

[0024] Optionally, it further includes:

[0025] A plurality of paper alignment units, and a plurality of the paper alignment units are arranged on the frame, and the paper alignment units are used for adjusting the position of the paper.

[0026] The working principle and beneficial effects of the present utility model are:

[0027] In this utility model, through its innovative structure and automated functions, the printing efficiency and quality of newspapers have been significantly improved. This printing press adopts a paper feeding unit and a tensioning unit to ensure the stable feeding and tensioning of large-sized newsprint, meeting the special paper requirements for newspaper printing. The integrated first printing unit and second printing unit achieve high-precision double-sided printing, meeting the high standards for image and text clarity in newspapers. The automated flipping unit reduces manual operation, lowers labor intensity, and reduces printing errors caused by improper operation. The compact device design saves valuable space in the printing workshop. At the same time, the simplified mechanical structure and modular design reduce the difficulty and cost of maintenance, improving the reliability of the device. The automatic paper folding unit further enhances production efficiency and reduces the need for subsequent manual folding. In addition, the energy-saving and consumption-reducing design of the printing press conforms to the current production trends of environmental protection and energy conservation, and its good flexibility and expandability can adapt to the printing requirements of different sizes and types of newspapers, as well as the possibility of future technological upgrades. In summary, the printing press of this utility model provides a comprehensive solution for the newspaper printing industry that is efficient, high-quality, economical, and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above characteristics, technical features, advantages and their implementation manners of this utility model will be further described below in a clear and easy-to-understand manner in combination with the drawings in the preferred embodiments.

[0029] Figure 1 It is a schematic structural diagram of this utility model;

[0030] Figure 2 is Figure 1 a partial enlarged structural diagram at position A of

[0031] Figure 3 is Figure 1 a partial enlarged structural diagram at position B of

[0032] In the figure: 1, frame; 2, paper feeding unit; 3, tensioning unit; 4, first printing unit; 5, flipping unit; 6, second printing unit; 7, paper folding unit; 8, abutting roller; 9, paper roll; 10, tensioning roller; 11, printing platform; 12, guiding roller; 13, air hole; 14, deviation adjusting unit. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific embodiments of this utility model will be described below with reference to the drawings. Obviously, the drawings in the following description are only some embodiments of this utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, and other embodiments can also be obtained.

[0034] To make the drawings concise, only the parts related to the utility model are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0035] In this article, it should be noted that unless otherwise clearly stipulated and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0036] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0037] Referring to Figures 1 to 3 , as an embodiment of the present utility model, there is provided

[0038] A printing machine, comprising:

[0039] A frame 1;

[0040] A paper feeding unit 2, arranged on the frame 1, and the paper feeding unit 2 is used to provide paper;

[0041] A tensioning unit 3, arranged on the frame 1, and the tensioning unit 3 is used to tension the paper, and the paper feeding unit 2 forms a conveying direction towards the tensioning unit 3;

[0042] A first printing unit 4, arranged on the frame 1, and the first printing unit 4 is located behind the tensioning unit 3 along the conveying direction, and the first printing unit 4 is used to print one side of the paper;

[0043] A flipping unit 5, the flipping unit 5 is arranged on the frame 1 and is located behind the first printing unit 4 along the conveying direction, and the flipping unit 5 is used to flip the paper;

[0044] A second printing unit 6, arranged on the frame 1, and the second printing unit 6 is located behind the flipping unit 5 along the conveying direction, and the second printing unit 6 is used to print the other side of the paper;

[0045] The paper folding unit 7 is arranged on the frame 1 and is located behind the second printing unit 6 along the conveying direction. The paper folding unit 7 is used to fold the paper.

[0046] In this embodiment, through its innovative structure and automated functions, the printing efficiency and quality of newspapers are significantly improved. The printing press adopts a paper feeding unit 2 and a tensioning unit 3 to ensure the stable conveying and tensioning of large-size newsprint, meeting the special paper requirements for newspaper printing. The integrated first printing unit 4 and second printing unit 6 achieve high-precision double-sided printing, meeting the high standards for image and text clarity in newspapers. The automated turning unit 5 reduces manual operations, lowers labor intensity, and reduces printing errors caused by improper operations. The compact design of the equipment saves valuable space in the printing workshop. At the same time, the simplified mechanical structure and modular design reduce the difficulty and cost of maintenance and improve the reliability of the equipment. The automatic paper folding unit 7 further improves production efficiency and reduces the need for subsequent manual folding. In addition, the energy-saving and consumption-reducing design of the printing press conforms to the current production trends of environmental protection and energy conservation. Its good flexibility and expandability can adapt to the printing requirements of different sizes and types of newspapers and the possibility of future technological upgrades. In summary, the printing press of the present utility model provides a comprehensive solution for the newspaper printing industry that is efficient, high-quality, economical, and environmentally friendly.

[0047] Optionally, the paper feeding unit 2 includes:

[0048] Two abutting rollers 8 are rotatably arranged on the frame 1 and are respectively located on both sides of the frame 1.

[0049] A paper winding roller 9 is used to wind the paper. Both of the two abutting rollers 8 are abutted on both sides of the paper winding roller 9. After the abutting rollers 8 rotate, they are used to drive the paper winding roller 9 to rotate.

[0050] In this embodiment, the cooperation of two abutting rollers 8 and a paper winding roller 9 is adopted. These two abutting rollers 8 are rotatably arranged on both sides of the frame 1 and evenly abut against both sides of the paper winding roller 9, ensuring the stability of the paper feeding process and reducing the phenomena of paper deviation or paper jamming. The rotation of the paper winding roller 9 is driven by the abutting rollers 8, realizing automatic paper winding, improving the paper feeding efficiency. Especially when continuously printing a large number of newspapers, it ensures the continuity and stability of paper feeding. This design reduces paper waste, simplifies the maintenance process, reduces the maintenance cost, and at the same time improves the applicability and operation safety of the equipment. The automatic paper feeding unit 2 reduces manual intervention, shortens the preparation time, improves the production efficiency, and due to its efficient design, reduces the energy consumption and enhances the reliability of the equipment. In addition, the optimized design of the paper feeding unit 2 also promotes the efficient collaborative work of the entire printing process, providing a stable, efficient and economical paper feeding solution for the newspaper printing industry, significantly improving the production efficiency and paper usage efficiency of newspaper printing.

[0051] Optionally, the tensioning unit 3 includes:

[0052] Tensioning rollers 10, there are several of them. Several tensioning rollers 10 are all arranged on the frame 1 at intervals and floatingly. The paper is used to wind around the tensioning rollers 10. After the tensioning rollers 10 float, they are used to tension or not tension the paper.

[0053] In this embodiment, the precise control of the paper tension is realized. This unit is equipped with several tensioning rollers 10 arranged at intervals and floatingly. These rollers can dynamically adjust the tensioning force according to the actual needs of the paper, ensuring that the paper remains evenly tensioned during the conveying process, thereby avoiding printing defects caused by uneven tension. This design significantly improves the adaptability of the printing machine to papers of different thicknesses and materials, reduces the risk of paper damage, and at the same time improves the printing quality. The floating characteristics of the tensioning rollers 10 simplify the operation process, enabling the operator to easily adjust the paper tension, enhancing the convenience of operation. In addition, this design also helps to reduce the energy consumption because the tensioning rollers 10 can be adjusted according to the actual tensioning requirements of the paper, avoiding unnecessary energy consumption. Generally speaking, the design of the tensioning unit 3 not only improves the production efficiency, but also speeds up the entire production process by reducing the paper preparation time, providing an efficient, energy-saving and user-friendly solution for the newspaper printing industry.

[0054] Optionally, it further includes:

[0055] Printing platforms 11, there are two of them. Both printing platforms 11 are used for conveying paper, and the two printing platforms 11 are respectively located below the first printing unit 4 and the second printing unit 6.

[0056] Optionally, the flipping unit 5 includes:

[0057] Guide rollers 12, there are two of them. Both of the two guide rollers 12 are arranged on the frame 1. The two guide rollers 12 are vertically arranged, and both of the two guide rollers 12 are arranged at 90° to the conveying direction. The guide rollers 12 are used for winding the paper. After the paper is wound around the two guide rollers 12, it is used to adjust the direction of the paper.

[0058] Optionally, the guide roller 12 has a number of air holes 13. After the air holes 13 jet air, it is used to adjust the distance between the paper and the surface of the guide roller 12.

[0059] Optionally, it further includes:

[0060] Deviation adjustment units 14, there are a number of them. All of the a number of deviation adjustment units 14 are arranged on the frame 1, and the deviation adjustment units 14 are used to adjust the position of the paper.

[0061] In this embodiment, through the integration of a series of optional components, the printing machine significantly improves the flexibility and accuracy of paper processing. The setting of the printing platform 11 provides a stable conveying path for the paper under the first printing unit 4 and the second printing unit 6, ensuring the smoothness of the printing process and the accuracy of paper positioning. The design of the guide rollers 12 in the flipping unit 5, through the ingenious arrangement of being vertically arranged and at 90° to the conveying direction, realizes the precise adjustment of the paper direction, providing key technical support for automatic double-sided printing. In addition, the design of the air holes 13 on the guide roller 12, by jetting air to adjust the distance between the paper and the roller surface, further optimizes the paper conveying process, preventing paper deviation and damage. The addition of the deviation adjustment units 14, through a number of settings on the frame 1, facilitates the fine adjustment of the paper position, ensuring the accurate alignment of the paper throughout the printing process, thereby improving the printing quality and production efficiency. The integration of these optional components not only enhances the functionality and adaptability of the printing machine, but also through automated and intelligent designs, reduces manual intervention, lowers the operation complexity, improves the user's operation experience, and provides an efficient, stable, and user-friendly solution for large-volume printing tasks such as newspapers.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A printing press, characterized in that: include: Rack (1); A paper supply unit (2), arranged on the frame (1), the paper supply unit (2) being used to supply paper; A tensioning unit (3) is arranged on the frame (1), the tensioning unit (3) is used to tension the paper, and the paper supply unit (2) forms a conveying direction toward the tensioning unit (3); A first printing unit (4) is arranged on the frame (1), and the first printing unit (4) is located behind the tensioning unit (3) along the conveying direction, and the first printing unit (4) is used to print on one side of the paper; a turning unit (5), the turning unit (5) being arranged on the frame (1) and being located behind the first printing unit (4) along the conveying direction, the turning unit (5) being used for turning over the paper; A second printing unit (6) is arranged on the frame (1), and the second printing unit (6) is located behind the flipping unit (5) along the conveying direction, and the second printing unit (6) is used to print on the other side of the paper; A paper folding unit (7) is arranged on the frame (1) and is located behind the second printing unit (6) along the conveying direction. The paper folding unit (7) is used for folding the paper.

2. A printing machine according to claim 1, characterized in that: The paper supply unit (2) comprises: There are two abutment rollers (8), both of which are rotatably arranged on the frame (1) and are respectively located on both sides of the frame (1); A paper reel (9) is used for reeling paper, and the two abutment rollers (8) are both abuttingly arranged on both sides of the paper reel (9). After the abutment rollers (8) rotate, they are used to drive the paper reel (9) to rotate.

3. A printing machine according to claim 1, characterized in that: The tensioning unit (3) comprises: There are a plurality of tensioning rollers (10), and the plurality of tensioning rollers (10) are arranged on the frame (1) at intervals and in a floating manner. The paper is used to be wound around the tensioning rollers (10). After the tensioning rollers (10) float, they are used to tension or not tension the paper.

4. A printing press according to claim 1, characterized in that: Also includes: There are two printing platforms (11), both of which are used to transport paper, and the two printing platforms (11) are respectively located below the first printing unit (4) and the second printing unit (6).

5. A printing machine according to claim 1, characterized in that: The turning unit (5) comprises: There are two guide rollers (12), both of which are arranged on the frame (1), the two guide rollers (12) are arranged vertically, and the two guide rollers (12) are arranged at 90 degrees to the conveying direction, the guide rollers (12) are used to wind the paper, and after the paper is wound on the two guide rollers (12), the direction of the paper is adjusted.

6. A printing machine according to claim 5, characterized in that: The guide roller (12) has a plurality of air holes (13), and the air holes (13) are used to adjust the distance between the paper and the surface of the guide roller (12) after the air is ejected.

7. A printing press according to claim 1, characterized in that: Also includes: The deflection adjustment units (14) are provided in a plurality, and the plurality of deflection adjustment units (14) are all arranged on the frame (1), and the deflection adjustment units (14) are used to adjust the position of the paper.

Images