Air suction type paper feeding mechanism for printing of printing machine

Abstract

The utility model relates to the technical field of printing machines, and discloses an air suction type paper feeding mechanism for printing of a printing machine, which comprises a dust removal cover, a bottom plate and a paper feeding roller, an air suction cover is arranged at the top of the dust removal cover, and dust and paper scraps on the surface of a paperboard in the printing and paper feeding process are removed through the action of a fan on the air suction cover; the bottom plate is located at the bottom of the dust removal cover. A plurality of dust suction openings are evenly distributed in the paperboard. The paper feeding roller is arranged below the inner side of the dust removal cover, the outer side face of the paper feeding roller is fixedly sleeved with a plurality of paper feeding wheels, and the bottom ends of the paper feeding wheels penetrate through the dust collection opening and extend to the position below the bottom plate. When the printing machine starts to work, the draught fan on the air suction cover is started, and negative pressure is generated. Due to the action of negative pressure, air and paper scraps and dust on the surface of the paperboard are sucked into the dust removal cover and move to the fan along with airflow. And by removing dust and paper scraps on the surface of the paperboard, the printing definition and quality can be improved, and printing defects caused by impurities are avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of printing machine, concretely relates to a printing machine printing air suction type paper feeding mechanism. BACKGROUND

[0002] The function of printing paper feeding of the printing machine is to accurately, stably and efficiently feed the paper into the printing unit, to ensure that the paper can be printed according to the preset interval and position. The paper feeding mechanism can ensure that each paper is accurately aligned, avoiding printing deviation or misplacement, so as to ensure the clarity and uniformity of the printed matter. An efficient paper feeding system can reduce the paper processing time and improve the efficiency of the entire printing process. Accurate paper feeding can reduce printing errors caused by inaccurate paper position and reduce paper waste.

[0003] During the printing process of the printing machine, dust and paper scraps are easily generated on the surface of the paper. If these impurities are not removed in time, they will affect the clarity and quality of the printed matter, and also cause internal pollution of the printing machine, shortening the service life of the equipment. The shell structure of the existing paper feeding mechanism is complex, which is not easy to open and close quickly, increasing the difficulty of cleaning and maintenance. The opening of the shell of many existing technologies relies on manual operation, which not only is low in efficiency, but also increases the working strength and safety hazards of the operators.

[0004] In view of this, we propose a printing machine printing air suction type paper feeding mechanism. CONTENT OF THE UTILITY MODEL

[0005] The present application aims to solve the technical problem of inconvenient dust and paper scrap removal on the surface of the paper in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A printing machine printing air suction type paper feeding mechanism, comprising a dust removal cover, a bottom plate and a paper feeding roller, the top of the dust removal cover is provided with an air suction cover, the dust and paper scraps on the surface of the paper during the printing paper feeding process are removed through the action of the fan on the air suction cover; the bottom plate is bolted at the bottom of the dust removal cover, and the paper board is uniformly provided with a plurality of dust suction ports; the paper feeding roller is provided with six and arranged equidistantly below the inner side of the dust removal cover, a plurality of paper feeding wheels are fixedly sleeved on the outer side of the paper feeding roller, and the bottom end of the paper feeding wheel extends to the lower side of the bottom plate through the dust suction port.

[0008] When the printing machine starts to work, the fan on the air suction cover starts to work and generates negative pressure. Due to the action of the negative pressure, air and paper scraps and dust therein are sucked into the inside of the dust removal cover. The evenly distributed dust suction ports in the dust removal cover suck the impurities on the surface of the paper board and move to the fan along with the airflow. By removing the dust and paper scraps on the surface of the paper board, the clarity and quality of the printing can be improved, and the printing defects caused by impurities can be avoided.

[0009] As preferred, the dust cover comprises an upper rectangular cover, an isosceles trapezoidal cover and a lower rectangular cover arranged in sequence from top to bottom and connected in sequence.

[0010] As preferred, the isosceles trapezoidal cover and the lower rectangular cover are arranged with partitions at equal intervals to divide the dust cover into several dust chambers, and the paper feeding roller is arranged to penetrate the partitions. By dividing into different dust chambers, dust in different areas can be more effectively collected and removed, improving the dust removal efficiency.

[0011] As preferred, the side surfaces of the isosceles trapezoidal cover and the lower rectangular cover are provided with side cover plates connected with the dust cover, and three hydraulic cylinders connected with the upper rectangular cover drive the side cover plates to close on the dust cover or away from the dust cover to open the dust cover. The design of the side cover plates makes cleaning and maintenance more convenient, and the dust cover can be quickly opened and closed. The opening and closing of the side cover plates are controlled by the hydraulic cylinders, which can reduce the labor intensity of the operators and improve the safety of the operation. The automatic control of the hydraulic cylinders improves the automation level of the entire printing process.

[0012] As preferred, three inclined frames are arranged at equal intervals on the upper rectangular cover, the fixed end of the hydraulic cylinder is connected with the inclined frame, and the piston rod end is connected with the rotating connection seat on the side cover plate. The design of the inclined frame can balance the torque generated by the hydraulic cylinder to ensure the stable opening and closing of the side cover plate.

[0013] As preferred, six gears A fixedly connected with the input end of the paper feeding roller, three gears B between adjacent two gears A of the middle four gears A, a large gear and two guide gears on both sides of the large gear are arranged at equal intervals on the dust cover and rotate. The six gears A, the three gears B, the large gear and the two guide gears are engaged with the toothed belt, and one side of the top of the dust cover is provided with a mounting frame. A servo motor fixedly arranged on the mounting frame drives the large gear to rotate.

[0014] Compared with the prior art, the technical effects and advantages of the utility model are:

[0015] The air suction type paper feeding mechanism for the printing machine utilizes the suction force of the fan to generate negative pressure, and sucks the paper scraps and dust generated in the printing process into the interior of the dust cover. The uniformly distributed dust suction ports in the interior of the dust cover are responsible for collecting impurities on the surface of the paperboard and moving to the fan with the airflow for removal. At the same time, the paper feeding roller and the paper feeding wheel fixed on the outer side thereof are responsible for feeding the paperboard into the printing machine, and the transmission system composed of the gears and the toothed belt drives the paper feeding roller to rotate, realizing the continuous conveying of the paperboard.

[0016] The design of the suction type paper feeding mechanism effectively removes dust and paper scraps from the surface of the paperboard, improving the clarity and quality of the printing and avoiding printing defects caused by impurities. At the same time, it also reduces dust pollution in the workplace, providing a healthier and safer working environment for operators and reducing the cleaning burden of the workplace.

[0017] The mechanism significantly reduces the time for manual cleaning by automatically removing impurities from the paperboard, thereby improving production efficiency. In addition, since most dust and impurities are removed by the suction mechanism, the chances of dust entering the interior of the printing machine are reduced, extending the service life of the equipment and reducing the frequency of failures and maintenance.

[0018] The transmission system composed of gears and tooth belts achieves precise speed and position control, ensuring the positioning and synchronization of the paperboard during printing. In addition, stable and low-noise operation reduces printing errors caused by unstable transmission, and the distributed design disperses the transmission load, improving the reliability and life of the system while reducing energy loss. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the first perspective view of the present utility model;

[0020] Figure 2 is the second perspective view of the present utility model;

[0021] Figure 3 is the third perspective view of the present utility model.

[0022] Figure 4 is the right view of the present utility model Figure 1 .

[0023] In the figure: 1, dust removal cover; 11, upper rectangular cover; 12, isosceles trapezoidal cover; 13, lower rectangular cover; 14, dust removal chamber; 15, partition; 16, side cover plate; 17, hydraulic cylinder; 18, inclined frame; 19, rotating connection seat; 2, suction cover; 3, fan; 4, bottom plate; 5, dust suction port; 6, paper feeding roller; 7, paper feeding wheel; 8, gear A; 9, gear B; 10, guide gear; 101, tooth belt; 102, mounting frame; 103, servo motor; 104, large gear. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present utility model will be described clearly and completely below in combination with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, not all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present utility model.

[0025] The application will be further described in detail below with reference to the accompanying drawings. Figures 1-4 The application will be further described in detail below with reference to the accompanying drawings.

[0026] The application discloses a suction type paper feeding mechanism for a printing machine, which comprises a dust removal cover 1, a bottom plate 4 and a paper feeding roller 6.

[0027] The top of the dust removal cover 1 is provided with a suction cover 2, and the dust and paper scraps on the surface of the paperboard during the printing and paper feeding process are removed through the action of a fan 3 on the suction cover 2.

[0028] The dust removal cover 1 comprises an upper rectangular cover 11, an isosceles trapezoidal cover 12 and a lower rectangular cover 13 arranged in sequence from top to bottom and connected in sequence. The different shapes of the cover bodies support each other, and the stability of the entire dust removal cover 1 is improved. The isosceles trapezoidal cover 12 and the lower rectangular cover 13 are provided with distance-arranged partition plates 15 for separating the dust removal cover 1 into a plurality of dust removal chambers 14, and the paper feeding roller 6 penetrates through the partition plates 15. By being separated into different dust removal chambers 14, the dust in different areas can be more effectively collected and removed, and the dust removal efficiency is improved. Each dust removal chamber 14 works independently, and the cross interference of impurities between different paperboards is reduced. The suction force generated by the fan 3 can be more reasonably distributed, and it is ensured that each chamber can effectively remove impurities.

[0029] The side surfaces of the isosceles trapezoidal cover 12 and the lower rectangular cover 13 are provided with side cover plates 16 rotationally connected with the dust removal cover 1. Three hydraulic cylinders 17 rotationally connected on the upper rectangular cover 11 drive the side cover plates 16 to be closed on or away from the dust removal cover 1, so as to open the dust removal cover 1. Three inclined frames 18 are distance-arranged on the upper rectangular cover 11, the fixed ends of the hydraulic cylinders 17 are rotationally connected with the inclined frames 18, and the piston rod ends are rotationally connected with rotationally connected seats 19 on the side cover plates 16. The design of the inclined frames 18 can balance the torque generated by the hydraulic cylinders 17, and ensure that the side cover plates 16 are stably opened and closed. The design of the side cover plates 16 makes cleaning and maintenance more convenient, and the dust removal cover 1 can be quickly opened and closed. The opening and closing of the side cover plates 16 are controlled by the hydraulic cylinders 17, which can reduce the labor intensity of the operators and improve the safety of the operation. The automatic control of the hydraulic cylinders 17 improves the automation level of the entire printing process.

[0030] The bottom plate 4 is bolted at the bottom of the dust removal cover 1, and the paperboard is uniformly provided with a plurality of dust suction ports 5. The paper feeding roller 6 is provided with six paper feeding rollers 7 arranged at equal distances and arranged below the inner side of the dust removal cover 1, and the outer side of the paper feeding roller 6 is fixedly sleeved with a plurality of paper feeding wheels 7, and the bottom ends of the paper feeding wheels 7 extend to the lower side of the bottom plate 4 through the dust suction ports 5.

[0031] Six gears A8 are arranged equidistantly on the dust cover 1 and are fixedly connected to the input end of the paper feeding roller 6. Three gears B9 are arranged between every two adjacent gears A8 among the middle four gears A8. A large gear 104 and two guide gears 10 are arranged on both sides of the large gear 104. The six gears A8, the three gears B9, the large gear 104 and the two guide gears 10 are meshed with the toothed belt 101. One side of the top of the dust cover 1 is provided with a mounting frame 102. A servo motor 103 fixedly arranged on the mounting frame 102 drives the rotation of the large gear 104. The six gears A8 are fixedly connected to the input end of the paper feeding roller 6. Together with the three gears B9 between every two adjacent gears A8 among the middle four gears A8, the large gear 104 and the two guide gears 10, they form a closed-loop transmission system through the meshing of the toothed belt 101. One side of the top of the dust cover 1 is provided with a mounting frame 102. A servo motor 103 fixedly arranged on the mounting frame 102 drives the rotation of the large gear 104. The servo motor 103 can drive the rotation of the large gear 104 through the connection with the large gear 104. When the servo motor 103 starts and drives the rotation of the large gear 104, all the gears (gears A8, gears B9, large gear 104 and guide gears 10) will rotate synchronously due to the meshing relationship between the gears, thereby driving the rotation of the paper feeding roller 6 and realizing the conveying of the paperboard.

[0032] The use of the servo motor 103 to drive the large gear 104 can realize accurate speed and position control, which is very important for the positioning and synchronization of the paperboard in the printing process. Through the meshing transmission of the gears and the toothed belt 101, stable and low-noise operation can be realized, and printing errors caused by unstable transmission are reduced. The distributed design of multiple gears can disperse the transmission load, avoid single-point overload, and improve the reliability and service life of the system. This transmission mode can effectively improve the operation efficiency of the paper feeding roller 6 and reduce energy loss.

[0033] The printing machine uses an air suction type paper feeding mechanism. When the printing machine starts to work, the fan 3 on the air suction cover 2 starts to generate negative pressure. Due to the action of the negative pressure, air and paper dust and dust in it are sucked into the inside of the dust cover 1. The evenly distributed dust suction ports 5 in the dust cover 1 suck the impurities on the surface of the paperboard and move to the fan 3 along with the airflow.

[0034] The bottom plate 4 serves as a supporting structure to fix the entire paper feeding mechanism at a suitable position and is connected to the bottom of the dust cover 1 through bolts to ensure the stability and sealing performance of the entire mechanism. The dust cover 1, the air suction cover 2 and the fan 3 are connected through pipelines to help guide the airflow, and the paper feeding wheel 7 is responsible for feeding the paperboard into the printing machine. The bottom end of the paper feeding wheel 7 penetrates the dust suction port 5, so that the paperboard can continuously remove the impurities on the surface during the conveying process.

[0035] By removing dust and paper scraps from the surface of the paperboard, the clarity and quality of the printing can be improved, and printing defects caused by impurities can be avoided. Dust pollution in the workplace is reduced, which helps to provide a healthier and safer working environment. Cleaning work inside the printing machine is reduced because most of the dust and impurities have been removed by the suction fan 3. The suction paper feeding mechanism can automatically remove impurities on the paperboard, reducing the time for manual cleaning and improving production efficiency. Reducing dust entering the interior of the printing machine can prolong the service life of the equipment and reduce the frequency of failures and maintenance.

[0036] Finally, it should be noted that: the above only for the preferred embodiments of the present application has, and is not intended to limit the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A suction feed mechanism for a printing press, characterized by comprising: The utility model relates to a dust removal cover (1) is provided with the suction hood (2) on the top, and the dust and paper scraps on the paperboard surface during the printing paper feeding process are removed through the fan (3) on the suction hood (2) action; The bottom plate (4) is bolted at the bottom of the dust removal cover (1), and the paperboard is uniformly provided with a plurality of dust suction ports (5); The paper feeding roller (6) is provided with six equal-distance arranged paper feeding rollers (7) on the inner side below the dust removal cover (1), and the bottom end of the paper feeding roller (7) extends to the bottom of the bottom plate (4) through the dust suction port (5). The dust removal cover (1) comprises an upper rectangular cover (11), an isosceles trapezoidal cover (12) and a lower rectangular cover (13) arranged in sequence and connected.

2. A suction feed mechanism for a printing press according to claim 1, characterized in that: The isosceles trapezoidal cover (12) and the lower rectangular cover (13) are provided with a plurality of partition plates (15) arranged at equal distances in the inside, which separate the dust removal cover (1) into a plurality of dust removal chambers (14), and the paper feeding roller (6) rotates through the partition plate (15).

3. A suction feed mechanism for a printing press according to claim 2, wherein: The side surface of the isosceles trapezoidal cover (12) and the lower rectangular cover (13) is provided with a side cover plate (16) rotatably connected with the dust removal cover (1), and the three hydraulic cylinders (17) rotatably connected on the upper rectangular cover (11) drive the side cover plate (16) to cover or move away from the dust removal cover (1) to open the dust removal cover (1).

4. A suction feed mechanism for a printing press according to claim 2, wherein: The upper rectangular cover (11) is provided with three inclined frames (18) arranged at equal distances, the fixed end of the hydraulic cylinder (17) is rotatably connected with the inclined frame (18), and the piston rod end is rotatably connected with the rotary connection seat (19) on the side cover plate (16).

5. A suction feed mechanism for a printing press according to claim 4, wherein: The dust removal cover (1) is rotatably provided with six gear A (8) fixedly connected with the input end of the paper feeding roller (6), three gear B (9) between adjacent two gear A (8) among the middle four gear A (8), a large gear (104) and two guide gears (10) on both sides of the large gear (104), and the six gear A (8), three gear B (9), the large gear (104) and the two guide gears (10) are meshed with the toothed belt (101), one side of the top of the dust removal cover (1) is provided with a mounting frame (102), and the servo motor (103) fixedly arranged on the mounting frame (102) drives the large gear (104) to rotate.

6. A suction feed mechanism for a printing press according to claim 1, wherein: ​

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