A printer paper feeder

Abstract

This application discloses a paper feeder for a printing press, belonging to the technical field of printing press auxiliary equipment. It includes a machine body, a paper holder, and a conveyor body. The paper holder is installed at the front end of the machine body, and the conveyor body is installed at the rear end of the machine body. It also includes a transfer roller, a slitting roller, and a suction / discharge mechanism. The transfer roller is installed at the rear end of the machine body and is suitable for conveying paper. The slitting roller is installed in the middle of the machine body. This paper feeder for a printing press, by integrating multiple functional modules such as the transfer roller, slitting roller, and suction / discharge mechanism, realizes automatic paper transfer, slitting, and suction conveying, greatly improving the automation level of the printing process and reducing manual handling and cutting steps. Compared with traditional manual handling and slitting methods, this paper feeder can continuously and quickly process large amounts of paper, significantly improving work efficiency. At the same time, automated operation also reduces the efficiency decline caused by human fatigue.

Description

Technical Field

[0001] This application relates to the field of printing press auxiliary equipment technology, specifically a printing press paper feeder. Background Technology

[0002] A printing press is a device that uses mechanical or electronic means to copy text, images, and other materials onto substrates such as paper, cloth, and plastic. As a core tool for information dissemination and industrial production, the development of printing presses has profoundly influenced the progress of human civilization, promoting the popularization of knowledge, the spread of culture, and commercial prosperity.

[0003] In the current printing process, printing paper needs to be manually moved to a paper cutter for slitting to facilitate subsequent use. When printing large quantities of paper, manual handling is required, increasing labor costs. The printing press cannot be automatically fed paper. Manual handling not only directly increases labor costs but also causes multiple hidden losses. First, repeated loading and unloading causes wear and tear on the paper edges, increasing raw material loss. Second, accumulated fatigue leads to decreased work efficiency.

[0004] Therefore, it is necessary to design a printing press paper feeder to solve the above problems.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0006] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a paper feeder for printing presses, which solves the problem that printing paper needs to be manually moved to a paper cutter for slitting.

[0007] The technical solution adopted by this application to solve its technical problem is: a printing press paper feeder, including a machine body, a paper rack and a conveyor body, wherein the paper rack is installed at the front end of the machine body and the conveyor body is installed at the rear end of the machine body, and further includes a transfer roller, a slitting roller and a suction and discharge mechanism, wherein the transfer roller is installed at the rear end of the machine body and is suitable for conveying paper, and the slitting roller is installed in the middle of the machine body, wherein the upper end of the slitting roller is connected to a slitting blade and is suitable for slitting the paper;

[0008] The suction nozzle is installed at the front end of the machine body, and multiple suction nozzles are equidistantly provided at the lower part of the suction nozzle for sucking up the cut paper.

[0009] Furthermore, a mounting rod is connected to the front end of the machine body, and a pipe is connected to the front end of the mounting rod. Multiple control valves are equidistantly connected to the pipe. The air outlets of the control valves are connected to the suction nozzles of the suction and exhaust system via connecting pipes. A wind chamber is connected to the front end of the machine body. The two air outlets of the wind chamber are connected to the air inlets of the two control valves. The air inlets of the wind chamber are connected to a vacuum pump.

[0010] Furthermore, a transmission rod is connected to the front end of the machine body, and cams are connected to both sides of the transmission rod. A pull rod is rotatably connected to one side of the cam, and the pull rod is rotatably connected to the suction pump. A paper pressure roller is connected to the front end of the suction pump. A first connecting rod is rotatably connected to both sides of the machine body, and a second connecting rod is rotatably connected to the rear end of the first connecting rod. A sliding frame is rotatably connected to the lower end of the second connecting rod, and the front end of the sliding frame is rotatably connected to the machine body. Rollers are connected to both sides of the suction pump and the paper pressure roller, and the rollers slide within the sliding frame.

[0011] Furthermore, a mounting plate is fixed to one side of the machine body, and a fourth servo motor is fixed to one side of the mounting plate. The output end of the fourth servo motor, the rotating shaft of the air chamber, and both ends of the transmission rod are all fixed with first synchronous pulleys, and multiple first synchronous pulleys are connected by a first synchronous belt.

[0012] Furthermore, an auxiliary roller is connected to the middle of the machine body, and a second synchronous pulley is fixed to the output end of the fourth servo motor and one side of the auxiliary roller. The two second synchronous pulleys are connected by a second synchronous belt.

[0013] Furthermore, a second servo motor is fixed on one side of the machine body, and an active roller and a driven roller are connected to the middle and front end of the machine body. The active roller and the driven roller are connected by a conveyor belt, and the second servo motor drives the active roller to rotate through a belt drive.

[0014] Furthermore, a first servo motor is fixed on one side of the machine body, and the first servo motor drives the transmission roller to rotate via belt drive. A third servo motor is fixed on the other side of the machine body, and the third servo motor drives the slitting roller to rotate via belt drive.

[0015] Furthermore, a fifth servo motor is fixed on one side of the conveyor body, which is suitable for driving the conveyor body to operate.

[0016] Furthermore, the upper end of the paper rack is connected to a paper shaft, which is suitable for storing rolls of paper, and the rear end of the machine body is connected to multiple guide rollers.

[0017] The beneficial effects of this application are as follows: The paper feeder provided by this application integrates multiple functional modules such as transfer rollers, slitting rollers, and suction and conveying, realizing automatic paper transfer, slitting, and suction conveying, which greatly improves the automation level of the printing process and reduces the steps of manual handling and cutting. Compared with the traditional manual handling and slitting methods, this paper feeder can continuously and quickly process a large amount of paper, significantly improving work efficiency. At the same time, automated operation also reduces the problem of efficiency decline caused by human fatigue. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0019] In the attached diagram:

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a printing press paper feeder according to an embodiment of this application;

[0021] Figure 2 This is a three-dimensional structural diagram of a printing press paper feeder from the right side according to an embodiment of this application;

[0022] Figure 3 This is a three-dimensional structural diagram of the internal structure of a printing press paper feeder according to an embodiment of this application;

[0023] Figure 4 This is a three-dimensional structural diagram of the interior of a printing press paper feeder according to an embodiment of this application, viewed from the left.

[0024] Figure 5 This is a three-dimensional structural diagram of a portion of the interior of the hopper of a printing press according to an embodiment of this application;

[0025] Figure 6 This is a three-dimensional structural schematic diagram of a paper feeder rack for a printing press according to an embodiment of this application;

[0026] Figure 7 This is a three-dimensional structural schematic diagram of a printing press paper feeder conveyor body according to an embodiment of this application;

[0027] Figure 8 for Figure 5 Enlarged view of point A in the middle;

[0028] Figure 9 for Figure 2 Enlarged view of point B in the middle.

[0029] The following are the labeling elements in the figure:

[0030] 1. Machine body; 2. Paper rack; 3. Conveyor body; 4. Paper shaft; 5. Guide roller; 6. Transfer roller; 7. Slitting roller; 8. Drive roller; 9. Driven roller; 10. Conveyor belt; 11. Pipe; 12. Suction and exhaust; 13. Control valve; 14. Air chamber; 15. Mounting rod; 16. Transmission rod; 17. Cam; 18. Pull rod; 19. First connecting rod; 20. Second connecting rod; 21. Sliding frame; 22. Pressure roller; 23. Roller; 24. Sliding blade; 25. First servo motor; 26. Second servo motor; 27. Third servo motor; 28. Fourth servo motor; 29. ​​Fifth servo motor; 30. Mounting plate; 31. First synchronous pulley; 32. First synchronous belt; 33. Second synchronous pulley; 34. Second synchronous belt; 35. Auxiliary roller. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0033] like Figures 1-9 As shown, this application provides a printing press paper feeder, including a machine body 1, a paper holder 2 and a conveyor body 3. The paper holder 2 is installed at the front end of the machine body 1, and the conveyor body 3 is installed at the rear end of the machine body 1. It also includes a transfer roller 6, a slitting roller 7 and a suction and discharge 12. The transfer roller 6 is installed at the rear end of the machine body 1 and is suitable for conveying paper. The slitting roller 7 is installed in the middle of the machine body 1, and a slitting blade 24 is connected to the upper end of the slitting roller 7, which is suitable for slitting the paper.

[0034] The suction nozzle 12 is installed at the front end of the machine body 1, and multiple suction nozzles for sucking up the cut paper are equidistantly opened at the bottom of the suction nozzle 12.

[0035] Both the transfer roller 6 and the slitting roller 7 are rotatably mounted on the machine body 1 via bearings and are driven by corresponding servo motors. The slitting roller 7 is made of high-strength alloy steel, and the slitting blade 24 connected to its upper end is made of high-speed steel to ensure accurate and durable slitting effect. The suction and exhaust 12 is made of lightweight aluminum alloy to reduce overall weight and improve movement flexibility. Suction nozzles are equidistantly opened at its lower part to pick up the slitting paper.

[0036] like Figure 9As shown, a mounting rod 15 is connected to the front end of the body 1, and a pipe 11 is connected to the front end of the mounting rod 15. Multiple control valves 13 are connected at equal intervals on the pipe 11. The air outlet of the control valve 13 is connected to the air nozzle of the suction and exhaust 12 through a connecting pipe. A wind chamber 14 is connected to the front end of the body 1. The two air outlets of the wind chamber 14 are connected to the air inlets of the two control valves 13. The air inlet of the wind chamber 14 is connected to the vacuum pump.

[0037] An external vacuum pump is connected to the air inlet of the air chamber 14. The two air outlets of the air chamber 14 are connected to the air inlets of two control valves 13 on the suction and exhaust 12. When the vacuum pump is started, air is drawn in through the air chamber 14. The air in the air chamber 14 is drawn in through the control valve 13 via the pipe 11, and then diverted by the control valve 13 to the suction and exhaust 12, so that the suction and exhaust 12 generates suction. Then, the suction nozzle below the suction and exhaust 12 can pick up the cut paper.

[0038] like Figure 8 As shown, a transmission rod 16 is connected to the front end of the machine body 1. Cams 17 are connected to both sides of the transmission rod 16. A pull rod 18 is rotatably connected to one side of the cam 17. The pull rod 18 is rotatably connected to the suction pump 12. A pressure roller 22 is connected to the front end of the suction pump 12. A first connecting rod 19 is rotatably connected to both sides of the machine body 1. A second connecting rod 20 is rotatably connected to the rear end of the first connecting rod 19. A sliding frame 21 is rotatably connected to the lower end of the second connecting rod 20. The front end of the sliding frame 21 is rotatably connected to the machine body 1. Rollers 23 are connected to both sides of the suction pump 12 and the pressure roller 22. The rollers 23 slide within the sliding frame 21.

[0039] The transmission rod 16 is made of high-strength alloy steel to ensure it can withstand large torques. The cam 17 is made of wear-resistant alloy material to reduce wear and improve service life. The pull rod 18 is made of high-quality steel to ensure it has sufficient strength and rigidity. The transmission rod 16 is driven to rotate by the drive device, which in turn drives the cam 17 to rotate. The outer side of one side of the cam 17 is rotatably connected to the pull rod 18, and the pull rod 18 is rotatably connected to one side of the suction plate 12. Therefore, when the cam 17 rotates, it can push the pull rod 18 to move the suction plate 12. By rotating the first connecting rod 19 mounted on the machine body 1, the first connecting rod 19 is rotatably mounted to the second connecting rod 20, and the second connecting rod 20 is rotatably mounted to the slide frame 21. The slide frame 21 is also rotatably mounted to the machine body 1, so that the slide frame 21 is in an inclined state. Since the rollers 23 on both sides of the suction plate 12 and the pressure roller 22 roll in the slide frame 21, the suction plate 12 can be limited. Therefore, when the cam 17 rotates, the suction plate 12 can perform reciprocating motion up and down and back and forth.

[0040] like Figure 3 and Figure 4As shown, a mounting plate 30 is fixed on one side of the body 1, and a fourth servo motor 28 is fixed on one side of the mounting plate 30. The output end of the fourth servo motor 28, the rotating shaft of the air chamber 14, and both ends of the transmission rod 16 are all fixed with first synchronous pulleys 31. Multiple first synchronous pulleys 31 are connected by a first synchronous belt 32.

[0041] The fourth servo motor 28 can drive the transmission rod 16 to rotate through the first synchronous pulley 31 and the first synchronous belt 32, and at the same time drive the air chamber 14 to work.

[0042] like Figure 4 and Figure 5 As shown, an auxiliary roller 35 is connected to the middle of the machine body 1. A second synchronous pulley 33 is fixed to the output end of the fourth servo motor 28 and one side of the auxiliary roller 35. The two second synchronous pulleys 33 are connected by a second synchronous belt 34. A second servo motor 26 is fixed to one side of the machine body 1. An active roller 8 and a driven roller 9 are connected to the middle and front end of the machine body 1. The active roller 8 and the driven roller 9 are connected by a conveyor belt 10. The second servo motor 26 drives the active roller 8 to rotate through a belt drive.

[0043] The second servo motor 26 drives the active roller 8 to rotate via belt drive. The active roller 8 and the driven roller 9 are connected by a conveyor belt 10. When the second servo motor 26 is started, the conveyor belt 10 can be turned to transport the slit paper.

[0044] like Figure 5 As shown, a first servo motor 25 is fixed on one side of the machine body 1. The first servo motor 25 drives the transmission roller 6 to rotate via belt drive. A third servo motor 27 is fixed on the other side of the machine body 1. The third servo motor 27 drives the slitting roller 7 to rotate via belt drive.

[0045] The first servo motor 25 drives the transmission roller 6 to rotate, which presses down on the paper and pulls the roll into the slitting roller 7 for slitting. At the same time, the third servo motor 27 drives the slitting roller 7 and the slitting blade 24 to rotate, slitting the paper.

[0046] like Figure 7 As shown, a fifth servo motor 29 is fixed on one side of the conveyor body 3, which is suitable for driving the conveyor body 3 to operate.

[0047] The fifth servo motor 29 drives the conveyor rollers and conveyor belt on the conveyor body 3 to rotate via synchronous belt drive, thereby driving the conveyor body 3 to operate.

[0048] like Figure 1 As shown, the upper end of the paper rack 2 is connected to the paper shaft 4, which is suitable for storing roll paper, and the rear end of the machine body 1 is connected to multiple guide rollers 5.

[0049] The paper holder 2 is made of welded steel plate, and its upper end is connected to the paper shaft 4 through a bearing for storing paper rolls. The guide roller 5 is cylindrical in shape and is used to guide and tension the paper.

[0050] Working principle: First, the paper roll 4 is installed on the paper holder 2. The roll of paper on the paper roll 4 is manually pulled and placed on the guide roller 5 until the first edge of the roll of paper is placed between the transmission rollers 6. The transmission roller 6 drives the paper into the slitting roller 7 for paper cutting. The first servo motor 25 drives the transmission roller 6 to rotate, and the transmission roller 6 presses the paper and pulls the roll of paper into the slitting roller 7 for cutting. The third servo motor 27 drives the slitting roller 7 and the slitting blade 24 to cut the paper. After the paper is cut, the second servo motor 26 controls the conveyor belt 10 to work and transport the cut paper.

[0051] The fourth servo motor 28 drives the transmission rod 16 to rotate via the first synchronous pulley 31 and the first synchronous belt 32, and simultaneously drives the cam 17 to rotate. One side of the cam 17 is rotatably connected to the pull rod 18, and the pull rod 18 is rotatably connected to one side of the suction plate 12. Therefore, when the cam 17 rotates, it pushes the pull rod 18 to move the suction plate 12. By rotating the first connecting rod 19 mounted on the machine body 1, the first connecting rod 19 is rotatably mounted to the second connecting rod 20, and the second connecting rod 20 is rotatably mounted to the slide frame 21. The slide frame 21 is also rotatably mounted to the machine body 1, so that the slide frame 21 is in an inclined state. Since the rollers 23 on both sides of the suction plate 12 and the pressure roller 22 roll in the slide frame 21, the suction plate 12 can be limited. When the cam 17 rotates, it pushes the suction plate 12 via the pull rod 18, so that the suction plate 12 can perform reciprocating motion up and down and back and forth.

[0052] An external vacuum pump is connected to the air inlet of the air chamber 14. The two air outlets of the air chamber 14 are connected to the air inlets of two control valves 13 on the suction and exhaust 12. When the vacuum pump is started, air is drawn through the air chamber 14. The air in the air chamber 14 is drawn through the control valve 13 via the pipe 11, and then diverted by the control valve 13 to the suction and exhaust 12, causing the suction and exhaust 12 to generate suction. Then, the suction nozzle below the suction and exhaust 12 can pick up the cut paper and move it forward until it is moved to the conveyor. There is a certain time interval between the second paper and the first paper, that is, there is a part of overlap between the two papers. After the first paper is placed, the second paper will be picked up by the suction and exhaust 12. Each paper can be cut and conveyed. The second servo motor 26 conveys the cut paper into the conveyor body 3. The conveyor body 3 is driven by the fifth servo motor 29 to convey the conveyor belt and send the cut paper into the printing press for printing.

[0053] In addition, the suction nozzles on the suction and exhaust system 12 can be controlled by the control valve 13 when not in use. Unused suction nozzles can be closed. In order to prevent the paper from puffing up, a pressure roller is used to hold the paper down, ensuring the stability of the paper conveying.

[0054] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A printing press paper feeder, comprising a machine body (1), a paper rack (2) and a conveyor body (3). The paper holder (2) is installed at the front end of the machine body (1), and the conveyor body (3) is installed at the rear end of the machine body (1), characterized in that: It also includes a transfer roller (6), a slitting roller (7) and a suction and discharge (12). The transfer roller (6) is installed at the rear end of the machine body (1) and is suitable for conveying paper. The slitting roller (7) is installed in the middle of the machine body (1). The upper end of the slitting roller (7) is connected to a slitting blade (24) and is suitable for slitting the paper. The suction nozzle (12) is installed at the front end of the machine body (1), and multiple suction nozzles for sucking up the cut paper are equidistantly provided at the lower part of the suction nozzle (12).

2. A printing press paper feeder according to claim 1, characterized in that: The front end of the machine body (1) is connected to an installation rod (15), the front end of the installation rod (15) is connected to a pipe (11), and multiple control valves (13) are equidistantly connected on the pipe (11). The air outlet of the control valve (13) is connected to the suction nozzle of the suction pump (12) through a connecting pipe. The front end of the machine body (1) is connected to a wind chamber (14). The two air outlets of the wind chamber (14) are connected to the air inlets of the two control valves (13). The air inlet of the wind chamber (14) is connected to a vacuum pump. When the vacuum pump is started, it transmits air to the wind chamber (14). The air in the wind chamber (14) enters the suction pump (12) through the pipe (11). The suction nozzle below the suction pump (12) sucks up the cut paper.

3. A printing press paper feeder according to claim 2, characterized in that: The front end of the machine body (1) is connected to a transmission rod (16), and both sides of the transmission rod (16) are connected to cams (17). One side of the cam (17) is rotatably connected to a pull rod (18), and the pull rod (18) is rotatably connected to the suction pump (12). The front end of the suction pump (12) is connected to a pressure roller (22). Both sides of the machine body (1) are rotatably connected to a first connecting rod (19), and the rear end of the first connecting rod (19) is rotatably connected to a second connecting rod (20). The lower end of the second connecting rod (20) is rotatably connected to a sliding frame (21), and the front end of the sliding frame (21) is rotatably connected to the machine body (1). Both sides of the suction pump (12) and the pressure roller (22) are connected to rollers (23), and the rollers (23) slide within the sliding frame (21).

4. A printing press paper feeder according to claim 3, characterized in that: A mounting plate (30) is fixed on one side of the body (1), and a fourth servo motor (28) is fixed on one side of the mounting plate (30). The output end of the fourth servo motor (28), the rotating shaft of the air chamber (14) and both ends of the transmission rod (16) are all fixed with first synchronous pulleys (31). Multiple first synchronous pulleys (31) are connected by a first synchronous belt (32).

5. A printing press paper feeder according to claim 4, characterized in that: An auxiliary roller (35) is connected to the middle of the machine body (1). The output end of the fourth servo motor (28) and one side of the auxiliary roller (35) are both fixed with a second synchronous pulley (33). The two second synchronous pulleys (33) are connected by a second synchronous belt (34).

6. A printing press paper feeder according to claim 1, characterized in that: A second servo motor (26) is fixed on one side of the machine body (1). An active roller (8) and a driven roller (9) are connected to the middle and front end of the machine body (1). The active roller (8) and the driven roller (9) are connected by a conveyor belt. The second servo motor (26) drives the active roller (8) to rotate through a belt drive.

7. A printing press paper feeder according to claim 1, characterized in that: A first servo motor (25) is fixed on one side of the machine body (1). The first servo motor (25) and the transmission roller (6) drive the transmission roller (6) to rotate through belt drive. A third servo motor (27) is fixed on the other side of the machine body (1). The third servo motor (27) and the slitting roller (7) drive the slitting roller (7) to rotate through belt drive.

8. A printing press paper feeder according to claim 1, characterized in that: A fifth servo motor (29) is fixed on one side of the conveyor body (3), which is suitable for driving the conveyor body (3) to operate.

9. A printing press paper feeder according to claim 1, characterized in that: The upper end of the paper rack (2) is connected to a paper shaft (4), which is suitable for storing roll paper, and the rear end of the machine body (1) is connected to multiple guide rollers (5).

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