阅读说明：本技术 一种用于印刷机的走纸装置 (Paper feeding device for printing machine ) 是由 曾龙 于 2020-05-06 设计创作，主要内容包括：本发明公开了一种用于印刷机的走纸装置,包括壳体,所述壳体内部固定设置有输纸板,所述输纸板上开设有若干排气槽,所述输纸板的上表面两侧分别固定设置有第一限位板和第二限位板,所述第一限位板和第二限位板的底端分别固定设置有若干第一固定杆和第二固定杆,所述输纸板的顶端两侧均开设有滑槽。本发明通过第一电机转动带动第一齿轮发生转动,且此时通过第一齿轮与齿条之间的传动使第一限位板和第二限位板向相靠近的一侧移动,此时能够方便的调整第一限位板和第二限位板之间的距离,使走纸装置能够适应不同大小的纸张,且第一限位板和第二限位板移动的距离相同,能够有效的保证纸张在印刷的时候处于正中间,保证了印刷的质量。(The invention discloses a paper feeding device for a printing machine, which comprises a shell, wherein a paper conveying plate is fixedly arranged in the shell, a plurality of exhaust grooves are formed in the paper conveying plate, a first limiting plate and a second limiting plate are fixedly arranged on two sides of the upper surface of the paper conveying plate respectively, a plurality of first fixing rods and a plurality of second fixing rods are fixedly arranged at the bottom ends of the first limiting plate and the second limiting plate respectively, and sliding grooves are formed in two sides of the top end of the paper conveying plate. According to the paper feeding device, the first motor rotates to drive the first gear to rotate, the first limiting plate and the second limiting plate move towards the side close to each other through transmission between the first gear and the rack, the distance between the first limiting plate and the second limiting plate can be conveniently adjusted, the paper feeding device can adapt to paper of different sizes, the moving distances of the first limiting plate and the second limiting plate are the same, the paper can be effectively guaranteed to be in the middle during printing, and the printing quality is guaranteed.)

1. A paper advance device for a printing machine, comprising a casing (1), characterized in that: a paper conveying plate (2) is fixedly arranged inside the shell (1), a plurality of exhaust grooves (3) are formed in the paper conveying plate (2), a first limiting plate (4) and a second limiting plate (5) are fixedly arranged on two sides of the upper surface of the paper conveying plate (2) respectively, a plurality of first fixing rods (6) and a plurality of second fixing rods (7) are fixedly arranged at the bottoms of the first limiting plate (4) and the second limiting plate (5) respectively, sliding grooves (8) are formed in two sides of the top end of the paper conveying plate (2), the bottoms of the first fixing rods (6) and the second fixing rods (7) penetrate through the sliding grooves (8) and are arranged at the bottom of the paper conveying plate (2), a first limiting rod (9) and a second limiting rod (10) are fixedly arranged on one side inside the shell (1), and the other ends of the first limiting rod (9) and the second limiting rod (10) penetrate through the first fixing rods (6) and the second fixing rods (7) and are fixedly connected with the other side inside the shell (1), a first fixing plate (11) and a second fixing plate (12) are respectively installed on one side, close to each other, of the first fixing rod (6) and the second limiting rod (10), racks (13) are fixedly arranged on one sides, close to each other, of the first fixing plate (11) and the second fixing plate (12), a first motor (14) is fixedly arranged at the bottom end inside the shell (1) through a mounting seat, a first gear (15) meshed with the racks (13) is fixedly arranged at the output shaft end of the first motor (14), a paper conveying roller (16) is movably arranged above the paper conveying plate (2) inside the shell (1) through a bearing, a second gear (17) is fixedly arranged at one end of the paper conveying roller (16), a second motor (18) is fixedly arranged at the top end inside the shell (1), and a third gear (19) meshed with the second gear (17) is fixedly arranged at the output shaft end of the second motor (18), and a plurality of rubber rings (20) are fixedly arranged on the outer side of the paper conveying roller (16).

2. A sheet feeding device for a printing press according to claim 1, wherein: the outer side of the rubber ring (20) is provided with a plurality of grooves.

3. A sheet feeding device for a printing press according to claim 1, wherein: the right side of the top end of the shell (1) is movably provided with a switch door (21) through a rotating shaft.

4. A sheet feeding device for a printing press according to claim 3, wherein: and a handle is fixedly arranged at the top end of the switch door (21).

5. A sheet feeding device for a printing press according to claim 1, wherein: and mounting feet are fixedly arranged on two sides of the bottom end of the shell (1).

6. A sheet feeding device for a printing press according to claim 1, wherein: a fixing frame (22) is fixedly arranged on the outer side of the second motor (18), and the top end of the fixing frame (22) is fixedly connected with the top end inside the shell (1).

7. A sheet feeding device for a printing press according to claim 1, wherein: the rubber ring (20) and the exhaust groove (3) are arranged in a staggered mode.

Technical Field

The invention belongs to the technical field of paper feeding devices, and particularly relates to a paper feeding device for a printing machine.

Background

Machines for printing text and images. Modern printing machines are generally composed of mechanisms such as plate loading, inking, stamping and paper feeding, characters and images to be printed are made into printing plates, the printing plates are loaded on the printing machines, then ink is coated on the positions, where the characters and images exist, of the printing plates by manpower or printing machines, and then the printing plates are directly or indirectly transferred onto paper or other printing stocks, so that the same printed matters as the printing plates are copied, however, various paper feeding devices of various printing machines on the market still have various problems.

In the existing printing machine, after the paper of different specifications is replaced, the limiting devices on two sides in the paper feeding device need to be adjusted, but the adjusting distances of the limiting mechanisms on two sides are inconsistent, so that the paper can be in the middle position, and the printing quality is influenced; at present, when paper is conveyed, a gap exists between the bottom end of the paper and a paper conveying plate, and air at the bottom end of the paper can cause the paper to be wrinkled during the paper conveying process, so that equipment failure occurs.

Disclosure of Invention

The present invention is directed to a paper feeding device for a printing press, which solves the above problems of the related art.

In order to achieve the purpose, the invention provides the following technical scheme: a paper feeding device for a printing machine comprises a shell, wherein a paper conveying plate is fixedly arranged in the shell, a plurality of exhaust grooves are formed in the paper conveying plate, a first limiting plate and a second limiting plate are fixedly arranged on two sides of the upper surface of the paper conveying plate respectively, a plurality of first fixing rods and a plurality of second fixing rods are fixedly arranged at the bottom ends of the first limiting plate and the second limiting plate respectively, sliding grooves are formed in two sides of the top end of the paper conveying plate respectively, the bottom ends of the first fixing rods and the second fixing rods penetrate through the sliding grooves and are arranged at the bottom end of the paper conveying plate, a first limiting rod and a second limiting rod are fixedly arranged on one side in the shell, the other ends of the first limiting rod and the second limiting rod penetrate through the first fixing rods and the second fixing rods to be fixedly connected with the other side in the shell, and a first fixing plate and a second fixing plate are respectively installed on the side, close to the first fixing rod and the second limiting rod, the paper feeding mechanism is characterized in that a rack is fixedly arranged on one side, close to the first fixing plate and the second fixing plate, of the first fixing plate, a first motor is fixedly arranged at the bottom end inside the shell through a mounting seat, a first gear meshed with the rack is fixedly arranged at the output shaft end of the first motor, a paper feeding roller is movably arranged above the paper feeding plate through a bearing inside the shell, a second gear is fixedly arranged at one end of the paper feeding roller, a second motor is fixedly arranged at the top end inside the shell, a third gear meshed with the second gear is fixedly arranged at the output shaft end of the second motor, and a plurality of rubber rings are fixedly arranged on the outer side of the paper feeding roller.

Preferably, a plurality of grooves are formed in the outer side of the rubber ring.

Preferably, the switch door is movably arranged on the right side of the top end of the shell through a rotating shaft.

Preferably, a handle is fixedly arranged at the top end of the switch door.

Preferably, the two sides of the bottom end of the shell are fixedly provided with mounting feet.

Preferably, a fixing frame is fixedly arranged on the outer side of the second motor, and the top end of the fixing frame is fixedly connected with the top end of the inner portion of the shell.

Preferably, the rubber ring and the exhaust groove are arranged in a staggered mode.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the paper feeding device, the first motor rotates, the first gear is driven to rotate when the first motor rotates, the first limiting plate and the second limiting plate move towards the side close to each other through transmission between the first gear and the rack, the distance between the first limiting plate and the second limiting plate can be conveniently adjusted, the paper feeding device can adapt to paper of different sizes, the moving distances of the first limiting plate and the second limiting plate are the same, the paper can be effectively guaranteed to be in the middle during printing, and the printing quality is guaranteed.

(2) According to the invention, the exhaust groove is formed at the top end of the paper conveying plate, and the plurality of rubber rings are arranged on the outer side of the paper conveying roller, so that air at the bottom end of paper can be rapidly exhausted when the paper is conveyed, and the bottom end of the paper is tightly contacted with the bottom end of the paper conveying plate, so that the paper is more stable when moving.

Drawings

FIG. 1 is a schematic view showing an overall configuration of a paper feeding device for a printing press according to the present invention;

FIG. 2 is an enlarged view of a paper feeding device for a printing press at A in FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of a paper feeding device for a printing press at B in FIG. 1 according to the present invention;

fig. 4 is a schematic view of the chute opening of a paper feeding device for a printing press according to the present invention.

In the figure: 1. a housing; 2. a paper conveying plate; 3. an exhaust groove; 4. a first limit plate; 5. a second limiting plate; 6. a first fixing lever; 7. a second fixing bar; 8. a chute; 9. a first limit rod; 10. a second limiting rod; 11. a first fixing plate; 12. a second fixing plate; 13. a rack; 14. a first motor; 15. a first gear; 16. a paper feeding roller; 17. a second gear; 18. a second motor; 19. a third gear; 20. a rubber ring; 21. opening and closing the door; 22. a fixing frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a paper feeding device for a printing machine, including a housing 1, a paper conveying plate 2 is fixedly disposed inside the housing 1, the paper conveying plate 2 is provided with a plurality of exhaust grooves 3, two sides of an upper surface of the paper conveying plate 2 are respectively and fixedly provided with a first limiting plate 4 and a second limiting plate 5, bottom ends of the first limiting plate 4 and the second limiting plate 5 are respectively and fixedly provided with a plurality of first fixing rods 6 and a plurality of second fixing rods 7, two sides of a top end of the paper conveying plate 2 are respectively provided with a sliding chute 8, bottom ends of the first fixing rod 6 and the second fixing rod 7 are respectively arranged at a bottom end of the paper conveying plate 2 through the sliding chute 8, one side inside the housing 1 is fixedly provided with a first limiting rod 9 and a second limiting rod 10, the other ends of the first limiting rod 9 and the second limiting rod 10 are fixedly connected with the other side inside the housing 1 through the first fixing rod 6 and the second fixing rod 7, and one side of the first fixing rod 6 and one side of the second limiting rod 10 close to each other is respectively provided with a first fixing plate 11 and a second fixing plate 11 The fixed plate 12, the rack 13 is fixedly arranged on one side of the first fixed plate 11 close to the one side of the second fixed plate 12, the first motor 14 is fixedly arranged at the bottom end inside the shell 1 through the mounting seat, the first gear 15 meshed with the rack 13 is fixedly arranged at the output shaft end of the first motor 14, the paper conveying roller 16 is movably arranged above the paper conveying plate 2 inside the shell 1 through a bearing, the second gear 17 is fixedly arranged at one end of the paper conveying roller 16, the second motor 18 is fixedly arranged at the top end inside the shell 1, the third gear 19 meshed with the second gear 17 is fixedly arranged at the output shaft end of the second motor 18, and a plurality of rubber rings 20 are fixedly arranged on the outer side of the paper conveying roller 16.

In this embodiment, preferably, the outer side of the rubber ring 20 is provided with a plurality of grooves, so that the paper can be driven to move more conveniently;

in the embodiment, preferably, the switch door 21 is movably arranged on the right side of the top end of the shell 1 through a rotating shaft, so that the replacement and maintenance of parts inside the shell 1 are facilitated;

in this embodiment, preferably, a handle is fixedly disposed at the top end of the switch door 21, so that the switch door 21 can be conveniently opened;

in this embodiment, preferably, mounting feet are fixedly arranged on both sides of the bottom end of the housing 1, so that the housing 1 is convenient to mount;

in this embodiment, preferably, a fixing frame 22 is fixedly disposed at an outer side of the second motor 18, and a top end of the fixing frame 22 is fixedly connected with a top end inside the housing 1, and is used for fixing the second motor 18;

in this embodiment, the rubber ring 20 and the exhaust groove 3 are preferably arranged in a staggered manner, so that the exhaust groove 3 is not formed at the bottom end of the rubber ring 20, and the paper feeding operation can be better performed.

The working principle and the using process of the invention are as follows: when the paper feeding device is used, the first motor 14 rotates according to the size of paper to be printed by the printing machine, the first gear 15 is driven to rotate when the first motor 14 rotates, the first limiting plate 4 and the second limiting plate 5 move towards one side close to each other through transmission between the first gear 15 and the rack 13, the distance between the first limiting plate 4 and the second limiting plate 5 can be conveniently adjusted, the paper feeding device can adapt to paper of different sizes, the moving distances of the first limiting plate 4 and the second limiting plate 5 are the same, the paper can be effectively ensured to be in the middle during printing, the printing quality is ensured, the exhaust groove 3 is formed in the top end of the paper feeding plate 2, the rubber rings 20 are arranged on the outer side of the paper feeding roller 16, and air at the bottom end of the paper can be rapidly discharged during paper feeding, the bottom end of the paper is in close contact with the bottom end of the paper conveying plate 2, so that the paper is more stable when moving.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.