CN215438938U

CN215438938U - Paper changing center line aligning device for commercial rotary printing machine

Info

Publication number: CN215438938U
Application number: CN202121941268.7U
Authority: CN
Inventors: 安振明; 任五辈; 岳磊磊; 万常乐
Original assignee: Huixian City Wenjiao Printing Co ltd
Current assignee: Huixian Culture & Education Printing Co.,Ltd.
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-01-07
Anticipated expiration: 2031-08-18

Abstract

The utility model discloses a paper changing center line aligning device for a commercial rotary printing machine, which comprises a rack and a limiting plate, wherein a first servo motor is arranged on the side surface of the rack, the output end of the first servo motor is connected with a first rotating shaft, a paper changing rotating disc is arranged on the first rotating shaft, four mounting rollers are uniformly arranged on the side surface of one side of the paper changing rotating disc, a threaded rod shaft is arranged at the bottom of the side surface of the rack, one end of the threaded rod shaft is connected with a hand wheel, a first nut is arranged at the bottom end of the limiting plate, the first nut is meshed with the threaded rod shaft, a guide sliding groove is formed in the bottom surface of the inner side of the rack, a guide sliding block is arranged at the bottom end of the limiting plate, the guide sliding block is clamped and embedded in the guide sliding groove, two through holes are formed in the limiting plate, and the mounting rollers penetrate through the through holes. Has the advantages that: the utility model can align the center line of the paper roll paper, thereby avoiding the fine printing dislocation phenomenon of the printed matter and improving the printing quality of the commercial rotary printing machine.

Description

Paper changing center line aligning device for commercial rotary printing machine

Technical Field

The utility model relates to the technical field of commercial rotary printing machines, in particular to a paper changing center line aligning device for a commercial rotary printing machine.

Background

The commercial rotary press is one of web offset presses, is a web multicolor offset press capable of printing color fine prints with more than 175 lines/inch, is mainly used for printing color magazines, high-grade commercial advertisements, high-grade publicity products, pictures and newspapers and the like, and can better meet the increasing market demand by adopting the commercial rotary press for continuous printing operation by using paper rolls along with the increasing printing quantity of the high-grade magazines and newspapers.

Traditional commercial rotary press is when the scroll is used up to change, the user can only rely on experience butt joint to change old scroll and new scroll mostly, especially when changing the different scroll of width size, more can't ensure the new scroll of change and old scroll central line alignment, thereby lead to the fine printing dislocation phenomenon to appear in the printed matter, commercial rotary press's printing quality has been influenced, in addition, traditional commercial rotary press is when changing and calibrating the scroll, need take off the scroll that exhausts earlier, then place new scroll, mostly need the printing machine to shut down and use the longer time, thereby commercial rotary press's printing efficiency has been reduced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a paper-changing center line aligning device for a commercial rotary printing machine, which has the advantages of ensuring the center line alignment of a new paper roll to be replaced and an old paper roll, shortening the paper roll replacement time and improving the printing efficiency of the printing machine, thereby solving the problems in the background art.

(II) technical scheme

In order to realize the advantages of ensuring the alignment of the central lines of the new paper roll and the old paper roll, shortening the time for replacing the paper roll and improving the printing efficiency of the printing machine, the utility model adopts the following specific technical scheme: the paper changing center line aligning device for the commercial rotary printing machine comprises a frame and a limiting plate, wherein a first servo motor is arranged on the side face of the frame, the output end of the first servo motor is connected with a first rotating shaft, a paper changing rotating disc is installed on the first rotating shaft, four installation rollers are evenly installed on the side face of one side of the paper changing rotating disc, a threaded rod shaft is installed at the bottom of the side face of the frame, one end of the threaded rod shaft is connected with a hand wheel, a first nut is installed at the bottom end of the limiting plate and is mutually meshed with the threaded rod shaft, a guide sliding groove is formed in the bottom face of the inner side of the frame, a guide sliding block is installed at the bottom end of the limiting plate and is clamped and embedded in the guide sliding groove, two through holes are formed in the limiting plate, and the installation rollers penetrate through the through holes.

Further, fixed mounting has the fixed plate on the installation roller, and fixed plate longitudinal symmetry installs the second nut to the second nut inner gearing has adjusting screw, the mount pad is installed to adjusting screw one end, and mount pad fixed mounting is in regulating plate one side, the regulating plate cup joints and installs on the installation roller.

Further, frame one side is installed second servo motor, and the second servo motor output is connected with the second pivot to install first paper feed roller in the second pivot, be equipped with the third pivot of installing in the frame inboard under the second pivot, and install the second in the third pivot and advance the paper roller, install first gear in the second pivot, install the second gear in the third pivot, and the second gear meshes with the third gear mutually.

Further, four fixing holes are evenly formed in the paper changing turntable, two fixing pins are installed on the side face, close to one side of the paper changing turntable, of the limiting plate, and the fixing pins penetrate through the fixing holes.

Further, a laser calibrator is installed in the center of the top of the rack.

Furthermore, a paper feeding outlet is formed in the side face of the rack.

Further, the maximum diameter of the mounting roller is smaller than the diameter of the through hole.

(III) advantageous effects

Compared with the prior art, the utility model provides a paper changing center line aligning device for a commercial rotary printing machine, which has the following beneficial effects:

(1) the utility model is provided with a laser calibrator and an adjusting plate, when replacing and installing the paper roll, the laser calibrator can be started to emit calibration laser firstly, so that the laser irradiates on the central line of a first paper feeding roller and a second paper feeding roller, meanwhile, the laser light irradiates on the fixed position of the installing roller, then a user mounts the paper roll on the installing roller in a sleeved mode and abuts against one end of the paper roll with the side surface of the adjusting plate, at the moment, whether the laser light irradiates on the central line of the paper roll is observed, if not, an adjusting screw rod arranged in a second nut of a fixed plate is rotated, because the adjusting screw rod is connected with the adjusting plate through a mounting seat, when the adjusting screw rod is rotated, the adjusting plate can be pushed to move along the direction of the installing roller, so that the position of the paper roll sleeved on the installing roller is changed until the central line position is in the laser light irradiating position, and the central line alignment of the paper roll is completed, the center line of the paper roll is aligned with the center lines of the first paper feeding roller and the second paper feeding roller, then the hand wheel is rotated to drive the threaded rod shaft to rotate, the threaded rod shaft is meshed with the first nut arranged at the bottom end of the limiting plate, and the guiding sliding block arranged at the bottom end of the limiting plate is embedded in the guiding sliding groove arranged at the bottom surface of the frame, so when the threaded rod shaft rotates, the limiting plate moves linearly along the direction of the guiding sliding groove until the mounting roller passes through the through hole arranged on the limiting plate, the side surface of the limiting plate is mutually abutted with the other end of the paper tube, the paper roll aligned with the center line is limited, meanwhile, the fixing pin is inserted in the fixing hole arranged on the paper changing turntable to prevent the paper changing turntable from shaking, then one end of the paper passes through the first paper feeding roller, the second paper feeding roller and the outlet, then the second servo motor is started to drive the second rotating shaft to rotate, and because the first gear arranged on the second rotating shaft is meshed with the second gear arranged on the third rotating shaft, therefore, the first paper feeding roller and the second paper feeding roller can rotate relatively to feed paper to the paper feeding outlet continuously, and the center line of the paper is kept at a stable position, so that fine printing dislocation of printed matters is avoided, and the printing quality of the commercial rotary printing machine is improved.

(2) The utility model is provided with the paper changing turntable, as mentioned above, paper rolls with the same specification can be arranged on the upper and lower mounting rollers, the center lines of the two paper rolls are aligned at the same time, when the upper paper roll is used up, another calibrated paper roll with the same specification can be directly used, the paper changing efficiency is greatly improved, when the upper and lower paper rolls are used, two paper rolls with the same specification and the same specification or different specifications of the paper roll in use are arranged on the left and right mounting rollers, the center lines of the paper rolls are aligned according to the steps, when the paper rolls arranged on the left and right mounting rollers need to be changed, the limiting plate is separated from the mounting rollers by reverse operation according to the steps, then the first servo motor is started to drive the first rotating shaft to rotate for ninety degrees, the first rotating shaft drives the paper changing turntable to rotate for ninety degrees, and the paper roll on the other calibrated left and right mounting rollers with the same specification can be rotated to the position of the original upper and lower mounting rollers, and then, the paper rolls with different specifications can be replaced and the center lines can be aligned for use according to the forward operation of the steps, the printer does not need to be stopped when the used paper rolls are taken down and new paper rolls are reinstalled, and the center lines are aligned, and the printer only needs to be stopped when the paper changing rotary disc is rotated, so that the time for stopping the printer is greatly shortened, and the printing efficiency of the commercial rotary printer is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram of a paper change center line registration apparatus for a commercial rotary printing press according to an embodiment of the present invention;

FIG. 2 is a side view of a paper change center line registration device for a commercial rotary printing press according to an embodiment of the present invention;

FIG. 3 is an enlarged view at A of FIG. 1 according to an embodiment of the present invention;

FIG. 4 is an enlarged view at B of FIG. 1 according to an embodiment of the present invention;

FIG. 5 is a perspective view of a paper change turntable of a paper change center line alignment apparatus for a commercial rotary printing press according to an embodiment of the present invention;

fig. 6 is a perspective view of a stopper plate of the paper changing center line aligning device for a commercial rotary printing machine according to an embodiment of the present invention.

In the figure:

1. a frame; 2. a first servo motor; 3. a first rotating shaft; 4. a paper changing turntable; 5. mounting a roller; 6. a limiting plate; 7. a fixing pin; 8. a through hole; 9. a fixing hole; 10. a hand-operated wheel; 11. a threaded rod shaft; 12. a fixing plate; 13. an adjusting plate; 14. adjusting the screw rod; 15. a second nut; 16. a mounting seat; 17. a second servo motor; 18. a first paper feed roller; 19. a second paper feed roller; 20. a laser calibrator; 21. a paper feed outlet; 22. a first nut; 23. a guide chute; 24. a guide slider; 25. a second rotating shaft; 26. a third rotating shaft; 27. a first gear; 28. a second gear.

Detailed Description

For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the utility model, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.

According to an embodiment of the present invention, a paper change center line registration apparatus for a commercial rotary printing press is provided.

Referring to the drawings and the detailed description, as shown in fig. 1-6, the paper-changing center line aligning device for a commercial rotary printing machine according to the embodiment of the utility model includes a frame 1 and a limiting plate 6, a first servo motor 2 is disposed on a side surface of the frame 1, an output end of the first servo motor 2 is connected to a first spindle 3, a paper-changing turntable 4 is mounted on the first spindle 3, four mounting rollers 5 are uniformly mounted on a side surface of the paper-changing turntable 4, a screw rod shaft 11 is mounted at a bottom of the side surface of the frame 1, a hand wheel 10 is connected to one end of the screw rod shaft 11, a first nut 22 is mounted at a bottom end of the limiting plate 6, the first nut 22 and the screw rod shaft 11 are engaged with each other, a guiding chute 23 is disposed at a bottom surface of an inner side of the frame 1, a guiding slider 24 is mounted at a bottom end of the limiting plate 6, the guiding slider 24 is clamped and embedded in the guiding chute 23, two through holes 8 are disposed on the limiting plate 6, the mounting roller 5 penetrates through the through hole 8, the printer does not need to be stopped when the paper roll which is used up is taken down and a new paper roll is remounted and the center line is aligned, the printer only needs to be stopped when the paper changing rotary table 4 is rotated, the time for stopping the printer is greatly shortened, and the printing efficiency of the commercial rotary printing machine is improved.

In one embodiment, the fixing plate 12 is fixedly installed on the installation roller 5, the second nuts 15 are installed on the fixing plate 12 in an up-down symmetrical mode, the adjusting screws 14 are meshed in the second nuts 15, the installation seat 16 is installed at one end of each adjusting screw 14, the installation seat 16 is fixedly installed on the side face of one side of the adjusting plate 13, and the adjusting plate 13 is installed on the installation roller 5 in a sleeved mode and plays a role in conducting center line alignment on paper rolls of different specifications, so that fine printing dislocation of printed products is avoided, and the printing quality of a commercial rotary printing machine is improved.

In one embodiment, a second servo motor 17 is installed on one side of the frame 1, the output end of the second servo motor 17 is connected with a second rotating shaft 25, a first paper feeding roller 18 is installed on the second rotating shaft 25, a third rotating shaft 26 installed on the inner side of the frame 1 is arranged right below the second rotating shaft 25, a second paper feeding roller 19 is installed on the third rotating shaft 26, a first gear 27 is installed on the second rotating shaft 25, a second gear 28 is installed on the third rotating shaft 26, and the second gear 28 is meshed with the third gear, so that the function of conveying paper of a paper roll is achieved.

In one embodiment, four fixing holes 9 are uniformly formed in the paper changing turntable 4, two fixing pins 7 are installed on the side face, close to one side of the paper changing turntable 4, of the limiting plate 6, and the fixing pins 7 penetrate through the fixing holes 9 to play a role in limiting and fixing the rotating position of the paper changing turntable 4.

In one embodiment, a laser calibrator 20 is centrally mounted on the top of the frame 1, and the laser calibrator 20 is well known in the art and will not be described herein in detail, and serves to provide a standard reference for the calibration of the center line of the paper roll.

In one embodiment, the side of the frame 1 is provided with a paper feeding outlet 21 for feeding out the rolled paper.

In one embodiment, the mounting roller 5 has a maximum diameter smaller than the diameter of the through hole 8.

The working principle is as follows: the utility model is provided with a laser calibrator 20 and an adjusting plate 13, when replacing and installing the paper roll, the laser calibrator 20 can be started to emit calibration laser, so that the laser irradiates on the center line of a first paper feeding roller 18 and a second paper feeding roller 19, meanwhile, the laser light irradiates on the fixed position of the installing roller 5, then a user mounts the paper roll on the installing roller 5 in a sleeved mode and abuts against the side face of the adjusting plate 13, at the moment, whether the laser light irradiates on the center line of the paper roll is observed, if not, an adjusting screw 14 mounted in a second nut 15 of a fixing plate 12 is rotated, because the adjusting screw 14 is connected with the adjusting plate 13 through a mounting seat 16, the adjusting plate 13 can be pushed to move along the direction of the installing roller 5 when the adjusting screw 14 is rotated, so that the position of the paper roll mounted on the installing roller 5 in a sleeved mode is changed until the center line position of the paper roll is in the laser light irradiating position, the alignment of the center lines of the paper rolls is completed, the alignment of the center lines of the paper rolls and the center lines of the first paper feeding roller 18 and the second paper feeding roller 19 is ensured, then the hand wheel 10 is rotated to drive the threaded rod shaft 11 to rotate, because the threaded rod shaft 11 is meshed with the first nut 22 arranged at the bottom end of the limiting plate 6, and the guide slider 24 arranged at the bottom end of the limiting plate 6 is clamped in the guide chute 23 arranged at the bottom surface of the frame 1, when the threaded rod shaft 11 rotates, the limiting plate 6 linearly moves along the direction of the guide chute 23 until the installation roller 5 passes through the through hole 8 arranged on the limiting plate 6, the side surface of the limiting plate 6 is mutually abutted with the other end of the paper cylinder, the paper rolls aligned with the center lines are limited, meanwhile, the fixing pin 7 is inserted in the fixing hole 9 arranged on the paper changing turntable 4 to prevent the paper changing turntable 4 from shaking, then one end of the paper passes through the first paper feeding roller 18, the second paper feeding roller 19 and the paper feeding outlet 21, the second servo motor 17 is started again to drive the second rotating shaft 25 to rotate, because the first gear 27 arranged on the second rotating shaft 25 is meshed with the second gear 28 arranged on the third rotating shaft 26, the first paper feeding roller 18 and the second paper feeding roller 19 can rotate relatively to continuously feed paper to the paper feeding outlet 21, and the central line of the paper is kept at a stable position, thereby avoiding the phenomenon of fine printing dislocation of printed products and improving the printing quality of the commercial rotary printing machine, in addition, the utility model is provided with the paper changing turntable 4, as mentioned above, paper rolls with the same specification can be arranged on the upper and the lower two mounting rollers 5, the central lines of the two paper rolls are aligned simultaneously, when the upper paper roll is used up, another paper roll which is calibrated and has the same specification can be directly used, the paper changing efficiency is greatly improved, and when the upper and the lower paper rolls are used, two paper rolls with the same specification can be arranged on the left and the right mounting rollers 5, but paper rolls with the same specification or different specifications as the paper roll in use are aligned in the center line according to the steps, when the paper roll arranged on the left and right mounting rollers 5 needs to be replaced, the limiting plate 6 is separated from the mounting rollers 5 according to the reverse operation of the steps, then the first servo motor 2 is started to drive the first rotating shaft 3 to rotate for ninety degrees, the first rotating shaft 3 drives the paper changing turntable 4 to rotate for ninety degrees, the paper roll on the other calibrated left and right mounting rollers 5 with the same specification can be rotated to the position of the original upper and lower mounting rollers 5, then the forward operation is carried out according to the steps, the replacement and the center line alignment of the paper rolls with different specifications can be completed, the printer does not need to be stopped when the used paper roll is taken down and a new paper roll is re-mounted and the center line is aligned, the printer is stopped only when the paper changing turntable 4 is rotated, thereby greatly shortening the stop time of the printer, the printing efficiency of a commercial rotary press is improved.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The paper changing center line aligning device for the commercial rotary printing machine comprises a rack (1) and a limiting plate (6), and is characterized in that a first servo motor (2) is arranged on the side face of the rack (1), the output end of the first servo motor (2) is connected with a first rotating shaft (3), a paper changing rotating disc (4) is installed on the first rotating shaft (3), four installation rollers (5) are evenly installed on the side face of one side of the paper changing rotating disc (4), a threaded rod shaft (11) is installed at the bottom of the side face of the rack (1), a hand wheel (10) is connected to one end of the threaded rod shaft (11), a first nut (22) is installed at the bottom end of the limiting plate (6), the first nut (22) and the threaded rod shaft (11) are meshed with each other, a guide sliding chute (23) is formed in the bottom face of the inner side of the rack (1), and a guide sliding block (24) is installed at the bottom end of the limiting plate (6), and the guide sliding block (24) is embedded in the guide sliding groove (23), the limiting plate (6) is provided with two through holes (8), and the installation roller (5) penetrates through the through holes (8).

2. The paper changing center line aligning device for the commercial rotary printing machine as claimed in claim 1, wherein the mounting roller (5) is fixedly provided with a fixing plate (12), the fixing plate (12) is provided with second nuts (15) in an up-and-down symmetrical manner, the second nuts (15) are internally engaged with adjusting screws (14), one end of each adjusting screw (14) is provided with a mounting seat (16), the mounting seat (16) is fixedly arranged on one side surface of the adjusting plate (13), and the adjusting plate (13) is sleeved and mounted on the mounting roller (5).

3. The paper changing center line aligning device for the commercial rotary printing machine as claimed in claim 1, wherein a second servo motor (17) is installed on one side of the frame (1), the output end of the second servo motor (17) is connected with a second rotating shaft (25), a first paper feeding roller (18) is installed on the second rotating shaft (25), a third rotating shaft (26) installed on the inner side of the frame (1) is arranged under the second rotating shaft (25), a second paper feeding roller (19) is installed on the third rotating shaft (26), a first gear (27) is installed on the second rotating shaft (25), a second gear (28) is installed on the third rotating shaft (26), and the second gear (28) is meshed with the third gear.

4. The paper changing center line aligning device for the commercial rotary printing machine as claimed in claim 1, wherein the paper changing rotary table (4) is provided with four fixing holes (9), the side surface of the limiting plate (6) close to one side of the paper changing rotary table (4) is provided with two fixing pins (7), and the fixing pins (7) penetrate through the fixing holes (9).

5. A paper change center line alignment apparatus for a commercial rotary printing machine according to claim 1, wherein a laser aligner (20) is centrally mounted on the top of the frame (1).

6. The paper changing center line aligning apparatus for a commercial rotary printing machine according to claim 1, wherein a paper feeding outlet (21) is formed in a side surface of the frame (1).

7. A paper change center line alignment device for commercial rotary printing machines according to claim 1, wherein the mounting roller (5) has a maximum diameter smaller than the diameter of the through hole (8).