Transmission device for rotary press

Abstract

The utility model discloses a transmission device for a rotary press, which relates to the technical field of printing equipment and comprises a left plate frame and a right plate frame arranged at the right end of the left plate frame. A paper feeding cylinder is rotatably mounted on the inner side of the right end of the left plate frame, a first rotating rod is rotatably mounted on the inner side of the right end of the left plate frame and mounted at the left end of the paper feeding cylinder, a paper transmission mechanism is arranged in the left plate frame, and a paper collecting cylinder is rotatably mounted on the inner side of the left end of the left plate frame. The transmission device is used for the rotary press. The output end of a motor drives a driving belt wheel, the driving belt wheel drives a driven belt wheel through a transmission belt, the driven belt wheel drives a paper collecting barrel to rotate, the paper collecting barrel collects printing paper on the paper collecting barrel, the printing paper moves to drive a paper feeding barrel to rotate, a printing column at the upper end of a fourth rotating rod rotates along with the paper feeding barrel, the printing paper is printed while being wound by the paper collecting barrel, and printing continuity is powerfully guaranteed. Printing interruption caused by the paper transfer problem is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, specifically to a transmission device for a rotary printing press. Background Technology

[0002] In the workflow of a rotary printing press, the quality of the transmission device directly determines the effectiveness of the printing operation. However, the transmission devices of existing printing presses have some significant problems during use.

[0003] In the paper transfer process of printing, the precision of traditional transmission methods is not good enough, and it cannot ensure the accurate positioning of the paper during high-speed transfer. This not only easily leads to paper misalignment, affecting the registration accuracy of the images and text, but may also cause paper wrinkling, folding or even damage, seriously disrupting the continuity and stability of printing. The unstable paper transfer speed also makes it difficult for the printing process to meet the production requirements of high speed and high efficiency.

[0004] For example, an automatic feeding digital printing mechanism, as disclosed in announcement number CN222082062U, includes a printing machine. A feeding roller is rotatably connected to one side of the printing machine, and a side plate is fixedly installed on the other side. When it is necessary to remove the printed material wound on the take-up roller, the automatic feeding digital printing mechanism first activates a longitudinal cylinder to move a pallet upwards, causing the pallet to adhere to the outer wall of the wound printed material. Then, a transverse cylinder, in conjunction with a limiting plate and a sliding plate, pushes the rolled printed material out of the take-up roller, ensuring the printed material is completely and neatly rolled up, facilitating subsequent transfer of the rolled printed material. The aforementioned automatic feeding digital printing mechanism… During use, the conveyor belt not only easily leads to paper misalignment, affecting the registration accuracy of the images and text, but may also cause paper wrinkling, folding, or even damage. However, there are other problems, such as the inconvenience of adjusting the tension of the conveyor belt in existing solutions. Existing conveyor belt tension adjustment is inconvenient; both excessive looseness and tightness affect equipment operation and printing effect, increasing costs and energy consumption. The complex operation process and inflexible adjustment mechanism make it difficult to accurately control the tension. If the conveyor belt is too loose, it will cause slippage and loss of rotation, affecting the efficiency of power transmission; if it is too tight, it will accelerate the wear of the conveyor belt, shorten its service life, and increase the operating resistance and energy consumption of the equipment. Utility Model Content

[0005] The purpose of this utility model is to provide a transmission device for a rotary printing press to solve the problems mentioned in the background art, which not only easily lead to paper misalignment, affecting the registration accuracy of the image and text, but may also cause paper wrinkling, folding or even damage, and the inconvenience of adjusting the tension of the existing conveyor belt, which is too loose or too tight, both of which affect the operation of the equipment and the printing effect, and increase the cost and energy consumption.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a transmission device for a rotary printing press, comprising a left plate frame and a right plate frame disposed at the right end of the left plate frame; a paper feed tube is rotatably mounted on the inner side of the right end of the left plate frame, and the rear end of the paper feed tube is rotatably mounted on the inner side of the right end of the right plate frame; a first rotating rod is rotatably mounted on the inner side of the right end of the left plate frame, and the first rotating rod is mounted on the left end of the paper feed tube, with the right end of the first rotating rod rotatably mounted on the inner side of the right end of the right plate frame; a paper transmission mechanism is disposed within the left plate frame, and the left plate... A paper collection tube is rotatably installed on the inner side of the left end of the frame, and the left end of the paper collection tube passes through the left plate frame. The right end of the paper collection tube is rotatably installed on the inner side of the left end of the right plate frame. A motor is fixedly installed on the left side of the front end of the left plate frame, and a drive pulley is fixedly installed on the output end of the motor. A driven pulley is fixedly installed on the left end of the paper collection tube, and the drive pulley and the transmission belt form a synchronous rotation structure through the driven pulley. A tensioning structure is provided on the left end of the left plate frame, and a fixing groove is provided at the rear of the left end of the left plate frame. Three fixing grooves are evenly distributed on the left plate frame.

[0007] Furthermore, the paper transmission mechanism includes a second rotating rod rotatably mounted on the inner side of the right end of the left plate frame, and the second rotating rod is mounted on the left end of the first rotating rod, and the right end of the second rotating rod is rotatably mounted on the inner side of the right end of the right plate frame, and a third rotating rod is rotatably mounted on the inner side of the middle of the left plate frame.

[0008] Furthermore, the third rotating rod is installed to the upper left of the second rotating rod, and the right end of the third rotating rod is rotatably installed on the inner side of the right end of the right plate frame. The upper middle part of the left plate frame is rotatably installed with a fourth rotating rod, and the fourth rotating rod is installed on the left end of the third rotating rod.

[0009] Furthermore, the rear end of the fourth rotating rod is rotatably mounted on the inner side of the right end of the right plate frame, and a printing column is provided above the fourth rotating rod. The left end of the printing column is rotatably mounted on the upper middle part of the left plate frame, and the right end of the printing column is rotatably mounted on the upper middle part of the right plate frame.

[0010] Furthermore, the paper feeder is provided with printing paper, and the other end of the printing paper is provided on the paper take-up tube, and a portion of the printing paper is provided on the first rotating rod, the second rotating rod, the third rotating rod and the fourth rotating rod.

[0011] Furthermore, the tensioning structure includes a fixing rod provided at the left end of the fixing groove, and a tensioning wheel rotates at the left end of the fixing rod, and the tensioning wheel cooperates with the transmission belt. A fixing ball is nested at the right end of the fixing rod, and the fixing ball cooperates with the fixing groove.

[0012] Furthermore, a locking lever is provided inside the fixing rod, and the right end of the locking lever cooperates with the fixing ball. A pressing key is fixedly installed on the left end of the locking lever, and the pressing key is nested on the left end of the fixing rod. A spring is installed on the right end of the pressing key.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the transmission device for a rotary printing press;

[0014] 1. The motor output drives the drive pulley to rotate, which in turn drives the driven pulley to rotate via the transmission belt. The driven pulley then drives the take-up tube to rotate, which collects the printing paper onto the top. The movement of the printing paper causes the feed tube to rotate, which in turn drives the first, second, third, and fourth rotating rods to rotate in sequence. The printing column at the top of the fourth rotating rod rotates along with the paper, allowing the printing paper to be wound up by the take-up tube while it is being printed. This effectively ensures the continuity of printing, reduces printing interruptions caused by paper transfer problems, and improves production efficiency.

[0015] Furthermore, it significantly optimizes the production of defective and waste products caused by paper transfer issues, significantly reduces the company's production costs, and is easy to operate. Even relatively inexperienced operators can easily master it, greatly reducing the company's human resource training costs and management difficulties. It effectively reduces paper loss during the transfer process, saves raw material costs, and is in line with the concept of sustainable development.

[0016] Furthermore, it ensures the continuity of printing with absolute precision, eliminates production interruptions caused by paper transfer failures, significantly improves production efficiency, creates higher economic benefits for enterprises, significantly improves registration accuracy, makes the printed images and text more refined and accurate, achieves near-perfect registration effect, greatly enhances the market competitiveness of products, and successfully achieves ultra-high-speed operation, which can meet the urgent market demand for large-scale, high-efficiency, and high-quality printing.

[0017] 2. When the transmission belt is loose, first press the button on the left end of the fixing rod. Pressing the button squeezes the spring, and at the same time, the clamping rod moves to the right, releasing the fixing ball. Then, insert the fixing rod into the next fixing groove, and then release the button. The spring pushes the button to the left, causing the clamping rod to move to the left, fixing the fixing ball in place. The fixing ball is then fixed in the fixing groove, allowing the tensioning wheel on the left end of the fixing rod to tension the transmission belt. This allows for quick and convenient precise adjustment of belt tension, greatly shortening the time for equipment debugging and maintenance, and significantly improving production efficiency.

[0018] Furthermore, it significantly enhances the adaptability of the equipment, enabling it to operate stably under various complex and changing working conditions. It effectively meets the printing needs of paper with different materials, thicknesses, and widths. Reasonable tension adjustment effectively extends the service life of the conveyor belt, reduces equipment maintenance costs and the frequency of parts replacement, saving enterprises a lot of money. Stable and appropriate belt tension helps reduce equipment operating noise, improve the working environment, and reduce the health hazards of noise to operators. Attached Figure Description

[0019] Figure 1This is a front-view three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the printing paper of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the paper feeding tube of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the paper collection tube of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the active pulley of this utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the fixing rod of this utility model;

[0025] Figure 7 This is a schematic diagram of the three-dimensional structure of the fixing rod of this utility model.

[0026] In the diagram: 1. Left plate frame; 2. Right plate frame; 3. Paper feed tube; 4. First rotating rod; 5. Paper take-up tube; 6. Motor; 7. Driving pulley; 8. Driven pulley; 9. Transmission belt; 10. Fixing groove; 11. Second rotating rod; 12. Third rotating rod; 13. Fourth rotating rod; 14. Printing column; 15. Printing paper; 16. Fixing rod; 17. Tensioning wheel; 18. Clamping lever; 19. Fixing ball; 20. Press button; 21. Spring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1: Please refer to Figures 1-7This utility model provides the following technical solution: a transmission device for a rotary printing press, including a left plate frame 1 and a right plate frame 2 disposed at the right end of the left plate frame 1; a paper feed tube 3 is rotatably mounted on the inner side of the right end of the left plate frame 1, and the rear end of the paper feed tube 3 is rotatably mounted on the inner side of the right end of the right plate frame 2; a first rotating rod 4 is rotatably mounted on the inner side of the right end of the left plate frame 1, and the first rotating rod 4 is mounted on the left end of the paper feed tube 3, and the right end of the first rotating rod 4 is rotatably mounted on the inner side of the right end of the right plate frame 2; a paper transmission mechanism is provided inside the left plate frame 1, and the inner side of the left end of the left plate frame 1 is rotatably mounted on the right end of the right plate frame 2. A paper take-up tube 5 is rotatably installed, with its left end penetrating the left plate frame 1 and its right end rotatably installed on the inner left side of the right plate frame 2. A motor 6 is fixedly installed on the left front end of the left plate frame 1, and a drive pulley 7 is fixedly installed on the output end of the motor 6. A driven pulley 8 is fixedly installed on the left end of the paper take-up tube 5, and the drive pulley 7 and the transmission belt 9 form a synchronous rotation structure through the driven pulley 8. A tensioning structure is provided on the left end of the left plate frame 1, and a fixing groove 10 is provided at the rear of the left end of the left plate frame 1, with three fixing grooves 10 evenly distributed on the left plate frame 1. The paper transmission mechanism includes a second rotating rod 11 rotatably installed on the inner right side of the left plate frame 1, with the second rotating rod 11 installed on the left end of the first rotating rod 4, and the right end of the second rotating rod 11 rotatably installed on the inner right side of the right plate frame 2. A third rotating rod 12 is rotatably installed on the inner middle side of the left plate frame 1. The third rotating rod 12 is installed to the upper left of the second rotating rod 11, and the right end of the third rotating rod 12 is rotatably installed on the inner side of the right end of the right plate frame 2. The fourth rotating rod 13 is rotatably installed at the upper middle of the left plate frame 1, and the fourth rotating rod 13 is installed at the left end of the third rotating rod 12. The rear end of the fourth rotating rod 13 is rotatably installed on the inner side of the right end of the right plate frame 2. A printing column 14 is provided above the fourth rotating rod 13, and the left end of the printing column 14 is rotatably installed at the upper middle of the left plate frame 1. The right end of the printing column 14 is rotatably installed at the upper middle of the right plate frame 2. Printing paper 15 is provided on the paper feeding tube 3, and the other end of the printing paper 15 is provided on the paper receiving tube 5. A portion of the printing paper 15 is provided on the first rotating rod 4, the second rotating rod 11, the third rotating rod 12 and the fourth rotating rod 13.

[0029] When motor 6 starts, the output of motor 6 drives the drive pulley 7 to rotate. The drive pulley 7 drives the driven pulley 8 to rotate through the transmission belt 9. The driven pulley 8 drives the take-up tube 5 to rotate. The take-up tube 5 collects the printing paper 15. The movement of the printing paper 15 drives the feed tube 3 to rotate, and also drives the first rotating rod 4, the second rotating rod 11, the third rotating rod 12, and the fourth rotating rod 13 to rotate in sequence. The printing column 14 at the upper end of the fourth rotating rod 13 rotates with it, printing on the printing paper 15, so that the printing paper 15 is printed and wound up by the take-up tube 5 at the same time.

[0030] The tensioning structure includes a fixing rod 16 located at the left end of the fixing groove 10, with a tensioning wheel 17 rotating at the left end of the fixing rod 16. The tensioning wheel 17 cooperates with the transmission belt 9. A fixing ball 19 is nested at the right end of the fixing rod 16, and the fixing ball 19 cooperates with the fixing groove 10. A locking rod 18 is provided inside the fixing rod 16, and the right end of the locking rod 18 cooperates with the fixing ball 19. A pressing key 20 is fixedly installed at the left end of the locking rod 18, and the pressing key 20 is nested at the left end of the fixing rod 16. A spring 21 is installed at the right end of the pressing key 20.

[0031] When the transmission belt 9 is loose, first press the left end of the fixing rod 16 pressing key 20. Pressing key 20 squeezes spring 21, and at the same time, the locking rod 18 moves to the right, releasing the fixing ball 19. Then insert the fixing rod 16 into the next fixing groove 10, and then release the pressing key 20. Spring 21 pushes the pressing key 20 to the left, causing the locking rod 18 to move to the left. The locking rod 18 fixes the fixing ball 19, and the fixing ball 19 is fixed in the fixing groove 10, allowing the tensioning wheel 17 at the left end of the fixing rod 16 to tension the transmission belt 9.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A transmission device for a rotary printing press, comprising a left plate frame (1) and a right plate frame (2) disposed at the right end of the left plate frame (1); Its features are: A paper feed tube (3) is rotatably installed on the inner side of the right end of the left plate frame (1), and the rear end of the paper feed tube (3) is rotatably installed on the inner side of the right end of the right plate frame (2). A first rotating rod (4) is rotatably installed on the inner side of the right end of the left plate frame (1), and the first rotating rod (4) is installed on the left end of the paper feed tube (3), and the right end of the first rotating rod (4) is rotatably installed on the inner side of the right end of the right plate frame (2). A paper transmission mechanism is provided inside the left plate frame (1), and a paper collection tube (5) is rotatably installed on the inner side of the left end of the left plate frame (1), and the left end of the paper collection tube (5) passes through the left plate frame (1), and the right end of the paper collection tube (5) is rotatably installed on the inner side of the left end of the right plate frame (2). A motor (6) is fixedly installed on the left front end of the left plate frame (1), and a drive pulley (7) is fixedly installed at the output end of the motor (6). A driven pulley (8) is fixedly installed at the left end of the paper collection tube (5), and the drive pulley (7) and the transmission belt (9) form a synchronous rotation structure through the driven pulley (8). A tensioning structure is provided at the left end of the left plate frame (1), and a fixing groove (10) is provided at the rear of the left end of the left plate frame (1). The fixing grooves (10) are evenly arranged on the left plate frame (1) in three places.

2. The transmission device for a rotary printing press according to claim 1, characterized in that: The paper transmission mechanism includes a second rotating rod (11) rotatably mounted on the inner side of the right end of the left plate frame (1), and the second rotating rod (11) is mounted on the left end of the first rotating rod (4), and the right end of the second rotating rod (11) is rotatably mounted on the inner side of the right end of the right plate frame (2), and a third rotating rod (12) is rotatably mounted on the inner side of the middle of the left plate frame (1).

3. The transmission device for a rotary printing press according to claim 2, characterized in that: The third rotating rod (12) is installed on the upper left of the second rotating rod (11), and the right end of the third rotating rod (12) is rotatably installed on the inner side of the right end of the right plate frame (2). The upper middle end of the left plate frame (1) is rotatably installed with a fourth rotating rod (13), and the fourth rotating rod (13) is installed on the left end of the third rotating rod (12).

4. The transmission device for a rotary printing press according to claim 3, characterized in that: The rear end of the fourth rotating rod (13) is rotatably installed on the inner side of the right end of the right plate frame (2), and a printing column (14) is provided above the fourth rotating rod (13). The left end of the printing column (14) is rotatably installed on the upper middle part of the left plate frame (1), and the right end of the printing column (14) is rotatably installed on the upper middle part of the right plate frame (2).

5. A transmission device for a rotary printing press according to claim 4, characterized in that: The paper feed tube (3) is provided with printing paper (15), and the other end of the printing paper (15) is provided on the paper receiving tube (5). A portion of the printing paper (15) is provided on the first rotating rod (4), the second rotating rod (11), the third rotating rod (12) and the fourth rotating rod (13).

6. A transmission device for a rotary printing press according to claim 1, characterized in that: The tensioning structure includes a fixed rod (16) provided at the left end of the fixed groove (10), and a tensioning wheel (17) rotates at the left end of the fixed rod (16), and the tensioning wheel (17) cooperates with the transmission belt (9). A fixed ball (19) is nested at the right end of the fixed rod (16), and the fixed ball (19) cooperates with the fixed groove (10).

7. A transmission device for a rotary printing press according to claim 6, characterized in that: The fixed rod (16) is provided with a locking rod (18) inside, and the right end of the locking rod (18) cooperates with the fixed ball (19). The left end of the locking rod (18) is fixedly installed with a pressing key (20), and the pressing key (20) is nested in the left end of the fixed rod (16). The right end of the pressing key (20) is installed with a spring (21).

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