Paper flattening device for printing machine

By designing a paper leveling device for printing presses, utilizing a combination of pressure rollers and scrapers along with heating wires, the problems of complex paper folding and low automation were solved, achieving efficient and stable paper leveling, and improving printing quality and production efficiency.

CN224044860UActive Publication Date: 2026-03-27DONGGUAN XIANGQI PRINTING PROD CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Existing paper leveling devices are difficult to effectively handle paper folds, especially when folds occur on both sides of the paper. The operation is complicated and has a low degree of automation, which affects printing quality and production efficiency.

Method used

Design a paper leveling device for a printing press, comprising a smoothing mechanism, a pushing mechanism, and a supporting mechanism. Through the combined use of a pressing roller and a scraper, the paper can be simultaneously unfolded and leveled at both sides of the folded corners. Combined with the heating function of an electric heating wire and a gradual tilt angle design, the risk of tearing and jamming can be avoided.

Benefits of technology

It improves the efficiency and stability of paper leveling, ensures printing quality, reduces equipment wear and maintenance costs, and meets the requirements of efficient and precise operation in modern printing production.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224044860U_ABST
    Figure CN224044860U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of printing, and discloses a paper flattening device for a printer, which comprises a flattening mechanism, a pushing mechanism and two supporting mechanisms, the flattening mechanism comprises a main positioning ring, two partition plates, a plurality of grinding rollers and a plurality of scrapers, the two partition plates are fixedly connected to two sides of the main positioning ring respectively, and the two partition plates are fixedly connected to two sides of the main positioning ring respectively. The multiple grinding rollers are rotationally connected between the two partition plates, and every two grinding rollers form a group and are sequentially arranged in the surrounding direction of the main positioning ring. According to the paper flattening device for the printing machine, to-be-flattened paper is borne through the supporting mechanism, and the to-be-flattened paper is pushed to the position between two grinding rollers which are located at one end of a main positioning ring and arranged in a mirror image mode through the pushing mechanism arranged on the supporting mechanism; the printing paper can be flattened through the two rolling rollers, meanwhile, the paper can be driven and conveyed, and the paper is conveyed to the position between the two scraping plates arranged in a mirror image mode through driving of the rolling rollers.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

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

[0002] In the printing industry, the flatness of paper plays a decisive role in printing quality. If the paper has unevenness such as folds or wrinkles, it will not only cause defects such as ghosting, blurring, and uneven color in the printed pattern, which seriously affects the visual effect and quality of the printed products, but may also cause problems such as paper jams and poor paper feeding during the printing process, reduce the working efficiency of the printing press, and increase equipment wear and maintenance costs.

[0003] Currently, common paper leveling devices on the market have many shortcomings in terms of function and performance. For example, current paper leveling devices can only perform simple crushing of paper. When the paper has folds, it is difficult to effectively handle the folds, causing the folds to be further compacted, which affects the use of the paper. Especially when there are folds on both sides of the paper, it is difficult to fully unfold and smooth it. Although some devices have certain fold handling functions, they are complicated to operate, require manual intervention, are prone to safety hazards, and have a low degree of automation, which further reduces production efficiency and cannot meet the requirements of modern printing production for efficient and precise operation. Utility Model Content

[0004] This invention provides a paper flattening device for printing presses, which can simultaneously unfold and flatten the folds of paper in two different directions, resulting in a better flattening effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a paper leveling device for a printing press, comprising a leveling mechanism, a pushing mechanism, and two support mechanisms, wherein:

[0007] The smoothing mechanism includes a main positioning ring, two partitions, multiple rolling rollers, and multiple scrapers. The two partitions are fixedly connected to both sides of the main positioning ring. The multiple rolling rollers are rotatably connected between the two partitions and arranged in pairs along the circumferential direction of the main positioning ring. Each pair of rolling rollers is arranged in a mirror image along the circumferential direction. The multiple scrapers are arranged between the two partitions and one set of scrapers is arranged between every two sets of rolling rollers. Each set of scrapers consists of two scrapers and is arranged in a mirror image along the circumferential direction. The ends of the scrapers form a slope that matches a portion of the contour of the rolling roller.

[0008] The two support mechanisms are respectively located at both ends of the main positioning ring and are used to support the paper.

[0009] The pushing mechanism is arranged on one of the supporting mechanisms, and is used for pushing the paper on the supporting mechanism into a group of scrapers arranged on the main positioning ring.

[0010] Optionally, the flattening mechanism further comprises a plurality of electric heating wires, a plurality of protective sleeves and a plurality of transmission shafts, the plurality of electric heating wires are respectively wound on outer walls of the plurality of rolling rollers, the plurality of protective sleeves are respectively threadedly connected to the outer walls of the plurality of rolling rollers, and the plurality of transmission shafts are respectively fixedly connected to end portions of the plurality of rolling rollers.

[0011] Optionally, the flattening mechanism further comprises two fixed plates, a plurality of insertion grooves and a sub-positioning ring, one of the fixed plates is fixedly connected to an outer wall of the main positioning ring, and the other fixed plate is fixedly connected to an outer wall of the sub-positioning ring.

[0012] Optionally, the supporting mechanism comprises a bracket, a fixed groove, four compression springs and a supporting plate, the fixed groove is arranged on an end portion of the bracket, an inner wall of the fixed groove is inserted into an outer surface of the fixed plate, the four compression springs are respectively fixedly connected to four corners of a bottom portion of the bracket, the supporting plate is slidably connected to an inner side wall of the bracket, and four corners of a bottom portion of the supporting plate are respectively fixedly connected to top ends of the four compression springs.

[0013] Optionally, the pushing mechanism comprises two supporting plates, two driving shafts and a plurality of rollers, the two supporting plates are respectively rotatably connected above one of the supporting mechanisms, the two driving shafts are respectively rotatably connected between the two supporting plates, and the plurality of rollers are respectively rotatably connected to outer walls of the two driving shafts.

[0014] Optionally, the pushing mechanism further comprises two first motors and a plurality of anti-skid sleeves, the two first motors are respectively fixedly installed on outer walls of the two supporting plates, output ends of the two first motors are respectively connected to end portions of the two driving shafts through key transmission, and the plurality of anti-skid sleeves are respectively sleeved on outer walls of the plurality of rollers.

[0015] Optionally, an outer surface of one of the partition plates is provided with a driving mechanism, the driving mechanism comprises a protective shell and a mounting plate, the protective shell is fixedly installed on an outer wall of one of the partition plates, and the mounting plate is fixedly installed on a middle portion of an inner side wall of the protective shell.

[0016] Optionally, the driving mechanism further comprises a plurality of driving gears, a plurality of belt pulleys and a plurality of guide wheels, the plurality of driving gears are rotatably connected to the outer wall of the mounting plate, the plurality of transmission shafts are connected to the inner wall of the plurality of driving gears through keys at one end penetrating the partition plate, the plurality of belt pulleys are rotatably connected to one side of the mounting plate and located at the inner wall of the protective shell, the plurality of transmission shafts are connected to the inner wall of the plurality of belt pulleys through keys at one end penetrating the mounting plate, and the plurality of guide wheels are rotatably connected to the inner side wall of the protective shell.

[0017] Optionally, the driving mechanism further comprises a plurality of driving gears, a plurality of belt pulleys and a plurality of guide wheels, the plurality of driving gears are rotatably connected to the outer wall of the mounting plate, the plurality of transmission shafts are connected to the inner wall of the plurality of driving gears through keys at one end penetrating the partition plate, the plurality of belt pulleys are rotatably connected to one side of the mounting plate and located at the inner wall of the protective shell, the plurality of transmission shafts are connected to the inner wall of the plurality of belt pulleys through keys at one end penetrating the mounting plate, and the plurality of guide wheels are rotatably connected to the inner side wall of the protective shell.

[0018] The paper flattening device for the printing machine has the following beneficial effects:

[0019] The paper flattening device for the printing machine has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole installation structure schematic view of the utility model;

[0021] Figure 2 It is a whole installation structure schematic view of the utility model;

[0022] Figure 3 It is a whole installation structure schematic view of the utility model;

[0023] Figure 4 It is the schematic diagram of the scraper mounting structure of the utility model;

[0024] Figure 5 It is the schematic diagram of the protective sleeve mounting structure of the utility model;

[0025] Figure 6 It is the schematic diagram of the support mechanism structure of the utility model;

[0026] Figure 7 It is the schematic diagram of the pushing mechanism structure of the utility model;

[0027] Figure 8 It is the schematic diagram of the driving mechanism explosion structure of the utility model.

[0028] In the drawing: 1, smoothing mechanism; 101, main positioning ring; 102, partition; 103, rolling roller; 104, heating wire; 105, protective sleeve; 106, transmission shaft; 107, fixed plate; 108, slot; 109, scraper; 1010, vice positioning ring; 2, support mechanism; 201, bracket; 202, fixed groove; 203, compression spring; 204, supporting plate; 3, pushing mechanism; 301, support plate; 302, driving shaft; 303, first motor; 304, roller; 305, anti-skid sleeve; 4, driving mechanism; 401, protective shell; 402, mounting plate; 403, driving gear; 404, pulley; 405, guide wheel; 406, belt; 407, second motor. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and all other embodiments obtained by those skilled in the art without creative labor based on the embodiments in the utility model belong to the protection scope of the utility model.

[0030] Please refer to Figures 1 to 8 The utility model embodiment provides a kind of smoothing device, which is applied to the scene that paper used in the working process of printing machine is smoothed, and the structure of smoothing device is improved in this embodiment, it has the advantage of quick flattening. Specifically, with the flattening of printing paper as an example, as a preferred scheme in this embodiment, the smoothing device is specifically paper smoothing device for printing machine, which can flatten the paper used in the working process of printing machine.

[0031] Please refer to Figures 1 to 8 The utility model provides a kind of technical scheme: a kind of paper smoothing device for printing machine, which is applied to the scene that paper used in the working process of printing machine is smoothed.

[0032] The device comprises a smoothing mechanism 1, a pushing mechanism 3 and two supporting mechanisms 2, wherein:

[0033] The smoothing mechanism 1 comprises a main positioning ring 101, two partitions 102, a plurality of rolling rollers 103 and a plurality of scrapers 109, the two partitions 102 are fixedly connected on the two sides of the main positioning ring 101, the plurality of rolling rollers 103 are rotatably connected between the two partitions 102, and two rolling rollers 103 are arranged in sequence along the circumferential direction of the main positioning ring 101, each group of two rolling rollers 103 is mirror-symmetrically arranged along the circumferential direction, the plurality of scrapers 109 are arranged between the two partitions 102, and one group of scrapers 109 is arranged between every two groups of rolling rollers 103, each group of scrapers 109 is two, and is mirror-symmetrically arranged along the circumferential direction, the end part of the scraper 109 forms a slope part matched with the part of the profile of the rolling roller 103, the scraper 109 comprises an outer end face and an inner end face, the outer end face refers to the face away from the paper, and the inner end face refers to the face towards the paper, along the circumferential direction, the length of the inner end face is greater than the length of the outer end face, so that the end part of the scraper 109 is in a slope shape, and the end part of the scraper 109 is matched with the profile of the rolling roller 103, the end part of the scraper 109 refers to the part adjacent to the rolling roller 103;

[0034] By matching the end part of the scraper 109 with the profile of the rolling roller 103, the abrupt contact of the right-angle edge is eliminated, and is converted into a gradual transition, or it can be understood that the gap between the end part of the scraper 109 and the rolling roller 103 is reduced, so that the paper can enter the two scrapers 109 stably, if the end part of the scraper 109 is a right angle, the paper needs to cross the vertical gap between the scraper 109 and the rolling roller 103, and it is easy to sag and jam due to insufficient rigidity, the matching profile of the scraper 109 slope part and the rolling roller 103 enables the inner end face of the scraper 109 to always adhere to the surface of the rolling roller 103 when the paper enters, and converts the original “right-angle gap jump” into a continuous sliding transition;

[0035] The two supporting mechanisms 2 are arranged at the two ends of the main positioning ring 101 respectively, and are used for bearing the paper;

[0036] The pushing mechanism 3 is arranged on one of the supporting mechanisms 2, and is used for pushing the paper on the supporting mechanism 2 into the group of scrapers 109 located in the main positioning ring 101.

[0037] In this embodiment, the main positioning ring 101 provides the basis positioning for the entire smoothing mechanism 1, ensuring that each component works in a relatively fixed position, guaranteeing the stability of the device during operation. The partition plates 102 are fixedly installed on both sides of the outer surface of the main positioning ring 101, forming a support frame to provide installation support points for the rolling rollers 103 and the scrapers 109, ensuring that the rolling rollers 103 and the scrapers 109 maintain a relative position unchanged during work, achieving stable paper processing operation. The rolling rollers 103 are rotatably connected between the two partition plates 102. When the paper passes, the rolling rollers 103 apply pressure to the paper by rolling, achieving the flattening of the printed paper. At the same time, the rolling rollers 103 drive the paper forward by relying on the friction force with the paper, ensuring that the paper can smoothly pass through the entire device. When the paper passes through the last pair of rolling rollers 103, the rolling rollers 103 are reversely rotated to make the paper move reversely, cooperating with the scrapers 109 to process the other side of the paper corner, improving the overall flatness of the paper.

[0038] In the above embodiment, as a preferred solution, the smoothing mechanism 1 further comprises a plurality of heating wires 104, a plurality of protective sleeves 105, and a plurality of transmission shafts 106. The plurality of heating wires 104 are wound around the outer walls of the plurality of rolling rollers 103, the plurality of protective sleeves 105 are threadedly connected to the outer walls of the plurality of rolling rollers 103, and the plurality of transmission shafts 106 are fixedly connected to the ends of the plurality of rolling rollers 103. By winding the heating wires 104 around the outer walls of the plurality of rolling rollers 103, heat is generated during work, causing the temperature of the rolling rollers 103 to rise. For some paper that is difficult to flatten due to moisture or material problems, the hot rolling rollers 103 can soften the paper fibers, enhance the rolling effect, and more effectively eliminate wrinkles and creases in the paper. The protective sleeves 105 are threadedly connected to the outer walls of the rolling rollers 103, on the one hand to prevent operators from accidentally contacting the high-temperature heating wires 104 or rolling rollers 103, ensuring operation safety, and on the other hand to avoid damage to the paper surface caused by direct contact, protecting the printing quality of the paper. The transmission shafts 106 are fixedly connected to the ends of the rolling rollers 103 for power transmission, ensuring that the plurality of rolling rollers 103 can rotate synchronously and stably under the drive of the driving mechanism 4, guaranteeing the consistency of the paper during the conveying and flattening process.

[0039] In the above embodiment, the smoothing mechanism 1 further comprises two fixed plates 107, a plurality of slots 108, and a secondary positioning ring 1010. One of the fixed plates 107 is fixedly connected to the outer wall of the main positioning ring 101, and the other fixed plate 107 is fixedly connected to the outer wall of the secondary positioning ring 1010. As a preferred solution, the installation stability of the support mechanism 2 can be guaranteed by the fixed plates 107, and the installation stability of the scrapers 109 can be guaranteed by the slots 108. The secondary positioning ring 1010 can cooperate with the main positioning ring 101 to achieve better protection and guidance effect.

[0040] In the above embodiment, as a preferred scheme, the supporting mechanism 2 comprises a bracket 201, a fixing groove 202, four compression springs 203 and a supporting plate 204, the fixing groove 202 is arranged at the end of the bracket 201, the inner wall of the fixing groove 202 is inserted with the outer surface of the fixing plate 107, the four compression springs 203 are respectively fixedly connected to the four corners at the bottom of the bracket 201, and the supporting plate 204 is slidably connected to the inner side wall of the bracket 201, the four corners at the bottom of the supporting plate 204 are fixedly connected with the top ends of the four compression springs 203, the bracket 201 serves as the main frame of the supporting mechanism 2, bears the weight of other components, and provides a mounting basis for the entire flattening device, so that the flattening device can be stably matched with the printing machine, the fixing groove 202 is arranged at the end of the bracket 201 and is inserted with the outer surface of the fixing plate 107, so that the flattening mechanism 1 and the supporting mechanism 2 are quickly mounted and positioned, and the assembly, disassembly and maintenance of the device are facilitated, the four compression springs 203 are fixedly connected to the four corners at the bottom of the bracket 201 and play a role in buffering and adjusting the height, in the paper conveying process, the supporting plate 204 can be self-adaptively adjusted through the expansion and contraction of the compression springs 203 according to the thickness and pressure of the paper, so that the paper can always be in good contact with the flattening mechanism 1 and the pushing mechanism 3, and the paper processing effect is improved, the supporting plate 204 is slidably connected to the inner side wall of the bracket 201 and is fixedly connected with the top ends of the compression springs 203 at the bottom, and the supporting plate 204 directly bears the weight of the paper and can be kept relatively stable in position by the elastic force of the compression springs 203, so that the stability of the paper conveying is ensured.

[0041] In the above embodiment, as a preferred scheme, the pushing mechanism 3 comprises two supporting plates 301, two drive shafts 302 and a plurality of rollers 304, the two supporting plates 301 are both rotatably connected above one of the supporting mechanisms 2, the two drive shafts 302 are rotatably connected between the two supporting plates 301, respectively, and the plurality of rollers 304 are rotatably connected to the outer walls of the two drive shafts 302, the supporting plate 301 is rotatably connected above one of the supporting mechanisms 2, provides mounting support for the drive shaft 302 and the roller 304, and facilitates adjustment of the angle of the pushing mechanism 3 through the rotatable design, so that when the paper is put in, the supporting plate 301 can be first lifted upward to facilitate the staff to put in the paper, the drive shaft 302 is rotatably connected between the two supporting plates 301 and rotates under the drive of the first motor 303, thereby driving the roller 304 to rotate and pushing the paper, the roller 304 is rotatably connected to the outer wall of the drive shaft 302 and directly contacts the paper, and the paper is pushed forward through rolling friction, so that the smooth conveying of the paper in the device is ensured.

[0042] In the above embodiment, as a preferred scheme, the pushing mechanism 3 further comprises two first motors 303 and a plurality of anti-skid sleeves 305, the two first motors 303 are both fixedly installed on the outer wall of one of the support plates 301, the output ends of the two first motors 303 are respectively connected with the end portions of the two drive shafts 302 through key transmission, the plurality of anti-skid sleeves 305 are respectively sleeved on the outer walls of the plurality of rollers 304, and are fixedly installed on the outer wall of one of the support plates 301 through the first motor 303, the output ends of the anti-skid sleeves 305 are connected with the end portions of the drive shafts 302 through key transmission, so as to provide power for the rotation of the drive shafts 302 and the rollers 304, ensure the stability and efficiency of the pushing process, and increase the friction between the rollers 304 and the paper, prevent the paper from slipping in the pushing process, and guarantee the accuracy and stability of the paper conveying.

[0043] In the above embodiment, as a preferred scheme, the outer surface of one of the partition plates 102 is provided with a driving mechanism 4, the driving mechanism 4 comprises a protective shell 401 and a mounting plate 402, the protective shell 401 is fixedly installed on the outer wall of one of the partition plates 102, and the mounting plate 402 is fixedly installed on the middle portion of the inner side wall of the protective shell 401, so as to provide protection for the internal driving components, prevent dust and sundries from entering, avoid accidental contact of operating personnel with the running components, guarantee the safety of equipment operation and personnel operation, and provide a mounting platform for driving gears 403, belt pulleys 404 and other components.

[0044] In the above embodiments, as a preferred option, the drive mechanism 4 further includes multiple drive gears 403, multiple pulleys 404, and multiple guide wheels 405. The multiple drive gears 403 are rotatably connected to the outer wall of the mounting plate 402. One end of multiple drive shafts 106 extending out of the partition 102 is connected to the inner wall of the multiple drive gears 403 via a key. The multiple pulleys 404 are rotatably connected to one side of the mounting plate 402 and located on the inner wall of the protective shell 401. One end of the multiple drive shafts 106 entering the mounting plate 402 is connected to the inner wall of the multiple pulleys 404 via a key. The multiple guide wheels 405 are rotatably connected to the inner wall of the protective shell 401 and are rotatably connected to the outer wall of the mounting plate 402 via the drive gears 403. Their inner walls are connected to the drive shafts 106 extending out of the partition 102. The ends of the 6 are connected by keys, and the power transmission between multiple drive shafts 106 is realized through the meshing of gears, ensuring that each rolling roller 103 can rotate synchronously. The pulley 404 is rotatably connected to one side of the mounting plate 402 and located on the inner wall of the protective shell 401. Its inner wall is connected to the end of the drive shaft 106 that passes through the mounting plate 402 by a key. Through the winding of the belt 406, the power transmission between the drive shafts 106 at different positions is realized. The diameter of the pulley 404 can be adjusted as needed to adjust the speed of the rolling roller 103. The guide wheel 405 is rotatably connected to the inner wall of the protective shell 401 and plays a guiding role for the belt 406, ensuring that the belt 406 maintains the correct position during operation, ensuring the transmission stability of the belt 406, and ensuring the stability of power transmission.

[0045] In the above embodiment, as a preferred option, the drive mechanism 4 further includes a belt 406 and a second motor 407. The inner sidewall of the belt 406 is wound around the outer surfaces of multiple pulleys 404 and multiple guide wheels 405. The second motor 407 is fixedly installed on the outer wall of the protective shell 401. The output end of the second motor 407 is connected to the end of one of the drive shafts 106 via a key. By winding the inner sidewall of the belt 406 around the outer surfaces of multiple pulleys 404 and guide wheels 405, power transmission between the pulleys 404 is realized, and the power of the second motor 407 is transmitted to each drive shaft 106. The second motor 407 is fixedly installed on the outer wall of the protective shell 401, and its output end is connected to the end of one of the drive shafts 106 via a key, providing a power source for the entire drive mechanism 4, driving the pressing roller 103 to rotate, and realizing the flattening and conveying of the paper.

[0046] In this invention, the working steps of the device are as follows:

[0047] 1、First, the paper to be laid flat is placed on the supporting plate 204 of the upper supporting mechanism 2, the supporting plate 204 adjusts the height according to the thickness of the paper under the action of the compression spring 203, so that the paper is in good contact with the flattening mechanism 1 and the pushing mechanism 3, and at the same time, the supporting plate 301 is lowered, the roller 304 is in contact with the paper, the first motor 303 is intermittently started, the paper is individually transported, the first motor 303 drives the driving shaft 302 and the roller 304 of the pushing mechanism 3 to rotate, the second motor 407 is started, the second motor 407 provides power for the driving mechanism 4 and drives the rolling roller 103 to rotate.

[0048] 2、The paper is flattened in the forward direction, the roller 304 of the pushing mechanism 3 pushes the paper forward through rolling friction, and the paper is fed into the flattening mechanism 1, in the flattening mechanism 1, a plurality of rolling rollers 103 flatten the paper, and rely on the friction force to drive the paper to continue to move forward, at the same time, the scraper 109 inserted between the rolling rollers 103 scrapes and expands the corners in the opposite direction of the movement direction of the paper, and then the paper is further flattened through the extrusion of the rolling rollers 103.

[0049] 3、The paper is flattened in the reverse direction, when the paper passes through the last pair of rolling rollers 103, the rolling rollers 103 are controlled to rotate in the reverse direction, so that the paper moves in the reverse direction, at this time, the other side of the scraper 109 scrapes and expands the corners in the opposite direction of the movement direction of the paper, so as to realize the overall expansion and flattening of the corners on both sides of the paper.

[0050] 4、The second motor 407 is rotated in the forward direction again until the paper is fed out of the flattening mechanism 1, the flattened paper is continuously fed out of the flattening mechanism 1, the paper laying process is completed, the paper reaches the lower supporting mechanism 2, and then the paper can enter the printing machine for subsequent printing process.

[0051] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A paper flattening device for a printing press, characterized in that, Including soothing mechanism (1), push mechanism (3) and two support mechanism (2), wherein: The soothing mechanism (1) includes main positioning ring (101), two partitions (102), a plurality of rolling rollers (103) and a plurality of scrapers (109), two partitions (102) are fixedly connected on both sides of main positioning ring (101), a plurality of rolling rollers (103) are rotatably connected between two partitions (102), and two are sequentially arranged along the circumferential direction of main positioning ring (101), every two rolling rollers (103) are mirror image arranged along the circumferential direction, a plurality of scrapers (109) are arranged between two partitions (102), and a group of scrapers (109) are arranged between every two groups of rolling rollers (103), every group of scrapers (109) is two, and mirror image is arranged along the circumferential direction, the end of the scraper (109) forms a slope part matched with the part of the profile of the rolling roller (103); Two support mechanisms (2) are arranged at both ends of main positioning ring (101) respectively, for carrying paper; The push mechanism (3) is arranged on one of the support mechanisms (2), for pushing the paper on the support mechanism (2) into a group of scrapers (109) located in main positioning ring (101).

2. A paper flattening device for a printing press as claimed in claim 1, characterized in that: The soothing mechanism (1) further includes a plurality of heating wires (104), a plurality of protective sleeves (105) and a plurality of transmission shafts (106), a plurality of heating wires (104) are wound on the outer wall of a plurality of rolling rollers (103), a plurality of protective sleeves (105) are threadedly connected to the outer wall of a plurality of rolling rollers (103), and a plurality of transmission shafts (106) are fixedly connected to the end of a plurality of rolling rollers (103).

3. A paper flattening device for a printing press as claimed in claim 2, characterized in that: The soothing mechanism (1) further includes two fixed plates (107), a plurality of insertion grooves (108) and a secondary positioning ring (1010), one of the fixed plates (107) is fixedly connected to the outer wall of main positioning ring (101), and the other fixed plate (107) is fixedly connected to the outer wall of secondary positioning ring (1010).

4. A paper flattening device for a printing press as claimed in claim 3, characterized in that: The support mechanism (2) includes a bracket (201), a fixed groove (202), four compression springs (203) and a support plate (204), the fixed groove (202) is formed in the end of the bracket (201), the inner wall of the fixed groove (202) is inserted into the outer surface of the fixed plate (107), four compression springs (203) are fixedly connected to the four corners of the bottom of the bracket (201), the support plate (204) is slidably connected to the inner side wall of the bracket (201), and the four corners of the bottom of the support plate (204) are fixedly connected to the top of the four compression springs (203).

5. A paper flattening device for a printing press as claimed in claim 1, characterized in that: The pushing mechanism (3) comprises two support plates (301), two drive shafts (302) and a plurality of rollers (304), both of the support plates (301) are rotatably connected above one of the support mechanisms (2), both of the drive shafts (302) are rotatably connected between the two support plates (301), and the plurality of rollers (304) are rotatably connected to the outer walls of the two drive shafts (302).

6. A paper flattening device for a printing press as claimed in claim 5, characterized in that: The pushing mechanism (3) further comprises two first motors (303) and a plurality of anti-skid sleeves (305), both of the first motors (303) are fixedly installed on the outer walls of one of the support plates (301), the output ends of the two first motors (303) are connected to the ends of the two drive shafts (302) through key transmission, and the plurality of anti-skid sleeves (305) are sleeved on the outer walls of the plurality of rollers (304).

7. A paper flattening device for a printing press as claimed in claim 2, characterized in that: The outer surface of one of the partition plates (102) is provided with a driving mechanism (4), the driving mechanism (4) comprises a protective shell (401) and a mounting plate (402), the protective shell (401) is fixedly installed on the outer wall of one of the partition plates (102), and the mounting plate (402) is fixedly installed on the middle part of the inner side wall of the protective shell (401).

8. A paper flattening device for a printing press as claimed in claim 7, characterized in that: The driving mechanism (4) further comprises a plurality of drive gears (403), a plurality of belt pulleys (404) and a plurality of guide wheels (405), the plurality of drive gears (403) are rotatably connected to the outer walls of the mounting plate (402), one ends of the plurality of transmission shafts (106) penetrating the partition plate (102) are connected to the inner walls of the plurality of drive gears (403) through keys, the plurality of belt pulleys (404) are rotatably connected to one side of the mounting plate (402) and located on the inner wall of the protective shell (401), one ends of the plurality of transmission shafts (106) penetrating the mounting plate (402) are connected to the inner walls of the plurality of belt pulleys (404) through keys, and the plurality of guide wheels (405) are rotatably connected to the inner side walls of the protective shell (401).

9. A paper flattening device for a printing press as claimed in claim 8, characterized in that: The driving mechanism (4) further comprises a belt (406) and a second motor (407), the inner side walls of the belt (406) are wound around the outer surfaces of the plurality of belt pulleys (404) and the plurality of guide wheels (405), the second motor (407) is fixedly installed on the outer wall of the protective shell (401), and the output end of the second motor (407) is connected to the end of one of the transmission shafts (106) through key transmission.