Anti-curl flattening device for book and periodical roll paper printing
By designing a combination of flattening and anti-curling components, the problem of edge curling in the printing process of book and magazine roll paper was solved, achieving stable flattening and anti-curling, thus improving printing quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGWEN GROUP SHANDONG PRINTING CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-05-15
AI Technical Summary
Book and magazine rolls are prone to curling during the printing process, which affects printing quality and production efficiency, leading to paper jams, machine downtime and other malfunctions, reducing product qualification rate and increasing production costs.
A device including a flattening component and an anti-curling component was designed. The flattening component driven by a hydraulic press and the combination of the anti-curling roller and the lower pressure roller, through the design of rubber sleeve and buffer spring, achieve stable flattening and anti-curling of the paper roll.
It effectively prevents roll paper from curling during the printing process, improves printing quality and production efficiency, reduces scrap rate, and enhances product aesthetics and production efficiency.
Smart Images
Figure CN224242374U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of printing equipment technology, specifically to a device for preventing edge curling and smoothing in book and magazine roll paper printing. Background Technology
[0002] In the printing process of book and magazine rolls, the paper unfolds from the roll and passes through the printing unit for printing. Due to the inherent elasticity and stress of the paper, curling is prone to occur under the influence of high-speed operation and the wetting of ink. Curling not only affects print quality, leading to uneven ink application and image distortion, but can also cause paper jams, machine downtime, and other malfunctions during printing, reducing production efficiency.
[0003] Curling edges not only affect the appearance of books and periodicals, causing uneven and curled pages and reducing the overall aesthetic appeal, but can also lead to paper jams and uneven cuts in subsequent binding and cutting processes. This severely impacts production efficiency and product yield, increasing production costs and scrap rates. Therefore, a smoothing device is needed to effectively solve the problem of curling edges after printing on rolls of book and periodicals, thereby improving the quality of printed materials and production efficiency, reducing production costs, and meeting the needs of modern printing technology. Utility Model Content
[0004] The purpose of this invention is to provide a device for preventing edge curling and smoothing in book and magazine roll paper printing, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a paper roll printing anti-curling and flattening device, comprising a machine body, support columns, a support frame, a flattening component, and an anti-curling component, characterized in that: support columns are fixedly installed at the four corners of the upper surface of the machine body, the support columns support and lift the support frame, the support frame fixedly supports the flattening component, a drive motor is installed on one side of the machine body, the output shaft of the drive motor is fixedly connected to a paper roll, a lower pressure roller is attached to the upper part of the paper roll, and springs are fixedly installed at both ends of the lower pressure roller. A shaft is used to adjust the gap between the telescopic lower pressure roller and the paper roll. A small support plate is inclined on one side of the paper roll, and a paper feeding roller is vertically arranged at the end of the small support plate. A large support plate is also inclined parallel to it and is fixedly arranged on one side surface of the machine body. A drive motor is vertically arranged on one side end of the large support plate, and the output end of the drive motor is fixedly connected to the roll shaft. The roll shaft is vertically arranged on the other side end of the large support plate, and the roll shaft is parallel to the paper feeding roller. An anti-rolling component is arranged on one side of the flattening component on the upper surface of the machine body.
[0006] Preferably, the flattening assembly includes a hydraulic press, a telescopic shaft, a first pressure plate, a telescopic spring, and a second pressure plate. The hydraulic press is fixedly supported at the center of the support frame. The output end of the hydraulic press faces the upper surface of the machine body and is fixedly connected to the first pressure plate. Telescopic shafts are provided on both sides of the hydraulic press. The telescopic shafts are vertically fixed on the support frame and are also fixedly connected to the surface of the first pressure plate at one end. Multiple telescopic springs are fixedly connected to the lower surface of the first pressure plate, and the other end of the telescopic springs is fixedly connected to the second pressure plate.
[0007] Preferably, a rubber sleeve is fixedly provided on the lower end surface of the second pressure plate to prevent the pressure plate from directly contacting the surface of the roll paper during the paper roll flattening operation. The rubber has a certain degree of resilience, which can effectively prevent the paper from being damaged during the flattening operation.
[0008] Preferably, the anti-rolling assembly includes a fixed frame, an anti-rolling roller, a downward anti-rolling roller, and a buffer spring. The fixed frame is fixed on both sides of the upper surface of the machine body. The anti-rolling roller is engaged with the lower half of the fixed frame. The upper half of the fixed frame is provided with the downward anti-rolling roller. The surface of the downward anti-rolling roller is in contact with the surface of the anti-rolling roller. A buffer spring is engaged above the downward anti-rolling roller. The other end of the buffer spring is engaged with the fixed frame.
[0009] Preferably, a groove is formed on the upper surface of the machine body, and the fixing frame is arranged on both sides of the groove, and the surface of the anti-rolling roller is parallel to the upper surface of the machine body.
[0010] Preferably, the surfaces of the paper roll and the paper unwinding roll are provided with a layer of mesh sponge sleeve to improve the stability of the paper roll conveying.
[0011] The beneficial effects of this utility model are:
[0012] This invention uses a paper roll and a lower roller to press the paper roll into the machine body. Then, a hydraulic press of the flattening component inside the machine body drives the surface of the second pressure plate to flatten and contact the paper roll. A rubber sleeve is provided on the surface of the second pressure plate to improve the resilience between the second pressure plate and the surface of the paper roll, preventing excessive pressure from damaging the paper roll. The second pressure plate is then connected to the first pressure plate by a telescopic spring to achieve a safer flattening effect. Finally, the paper roll passes through the anti-rolling roller and the lower anti-rolling roller of the anti-rolling component, and with the buffer spring engaged on the fixing frame, the paper roll is finally flattened to achieve the anti-rolling effect. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;
[0014] Figure 2 This is a three-dimensional schematic diagram of the paper roll assembly of this utility model;
[0015] Figure 3 This is a schematic cross-sectional view of the flattening component of this utility model;
[0016] Figure 4 This is a three-dimensional schematic diagram of the anti-roll-up component of this utility model.
[0017] The components in the attached diagram are labeled as follows: 1: machine body, 101: groove, 2: support column, 3: support frame, 41: hydraulic shaft, 42: telescopic shaft, 43: first pressure plate, 44: telescopic spring, 45: second pressure plate, 451: rubber sleeve, 51: fixed frame, 52: anti-winding roller, 53: lower pressure anti-winding roller, 54: buffer spring, 6: large support plate, 7: drive motor, 8: roll shaft, 9: small support plate, 10: paper feeding roller, 11: drive motor, 12: paper winding roller, 121: sponge sleeve, 13: lower pressure roller, 14: spring shaft. Detailed Implementation
[0018] Although this invention may be described with respect to a particular application or industry, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way.
[0019] This utility model relates to a paper roll printing anti-curling and flattening device, as shown in the figure. Support columns 2 are fixedly installed at the four corners of the upper surface of the machine body 1. These support columns 2 support and lift a support frame 3, leaving a gap between the support frame 3 and the upper surface of the machine body 1. A flattening component is fixedly supported at the center of the support frame 3. A drive motor 11 is installed on one side of the machine body 1. The output shaft of the drive motor 11 is fixedly connected to a paper roll 12, causing the paper roll 12 to move with the drive motor 11. A lower pressure roller 13 is fitted above the paper roll 12, and spring shafts 14 are fixedly installed at both ends of the lower pressure roller 13 to adjust the gap between the lower pressure roller 13 and the paper roll 12, facilitating adjustments for different thicknesses. The machine body 1 has a roll of paper with a small support plate 9 inclined on one side of the roll roller 12. A paper unwinding roller 10 is vertically arranged at the end of the small support plate 9. A mesh sponge sleeve 121 is provided on the surface of the roll roller 12 and the paper unwinding roller 10 to improve the stability of the roll paper conveying. A large support plate 6 is also inclined parallel to the small support plate 9. The large support plate 6 is fixedly arranged on one side of the machine body 1. A drive motor 7 is vertically arranged on one side of the end of the large support plate 6. The output end of the drive motor 7 is fixedly connected to the roll shaft 8. The roll shaft 8 is vertically arranged on the other side of the end of the large support plate 6. The roll shaft 8 is used to pick up the roll paper. The roll shaft 8 is parallel to the paper unwinding roller 10. An anti-rolling component is provided on the upper surface of the machine body 1.
[0020] The flattening assembly includes a hydraulic press 41, a telescopic shaft 42, a first pressure plate 43, telescopic springs 44, and a second pressure plate 45. The hydraulic press 41 is fixedly supported at the center of the support frame 3. The output end of the hydraulic press 41 faces the upper surface of the machine body 1 and is fixedly connected to the first pressure plate 43. The first pressure plate is parallel to the upper surface of the machine body 1. Telescopic shafts 42 are arranged on both sides of the hydraulic press 41. The telescopic shafts 42 are vertically fixed on the support frame 3, and one end is fixedly connected to the surface of the first pressure plate 43. Multiple telescopic springs 44 are fixedly connected to the lower surface of the first pressure plate 43. The other end of the telescopic springs 44 is fixedly connected to the second pressure plate 45. The connection of the telescopic springs 44 achieves a better flattening effect and prevents the surface of the roll paper from being damaged by excessive pressing speed. A rubber sleeve 451 is fixedly arranged on the lower surface of the second pressure plate 45 to prevent the pressure plate from directly contacting the surface of the roll paper during the flattening operation. The rubber has a certain degree of resilience and can effectively prevent the paper from being damaged during the flattening operation.
[0021] The anti-rolling component includes a fixed frame 51, an anti-rolling roller 52, a downward pressure anti-rolling roller 53, and a buffer spring 54. A groove 101 is provided on the upper surface of the machine body 1, and fixed frames 51 are fixedly installed on both sides of the groove 101. The anti-rolling roller 52 is engaged with the lower half of the fixed frame 51, and the surface of the anti-rolling roller 52 is parallel to the upper surface of the machine body 1, so that the roll paper can be better transferred through the anti-rolling roller 52 after being flattened. The upper half of the fixed frame 51 is provided with the downward pressure anti-rolling roller 52, and the surface of the downward pressure anti-rolling roller 53 is in contact with the surface of the anti-rolling roller 52. A buffer spring 54 is engaged above the downward pressure anti-rolling roller 52, and the other end of the buffer spring 54 is engaged with the fixed frame 51. When the roll paper enters the gap between the anti-rolling roller 52 and the downward pressure anti-rolling roller 54, the buffer spring 54 can achieve a better squeezing effect, thereby preventing the curling phenomenon and improving the overall aesthetics of the roll paper.
[0022] Working principle: First, the roll of paper is placed on the roll shaft 8. The drive motor 7 is started, and the roll of paper begins to move on the roll shaft 8. One end of the roll of paper is supported by the paper unwinding roller 10 and enters the gap between the paper roll roller 12 and the lower pressure roller 13. The elasticity and toughness of the roll of paper are squeezed first. Then, it enters the upper surface of the machine body 1 and is driven by the hydraulic shaft 41 to drive the flattening component. The second pressure plate 45 is fitted with a rubber sleeve 451 that fits and presses down on the roll of paper. After the roll of paper is flattened, the anti-curling component achieves the anti-curling effect. Through the adhesion between the anti-curling roller 52 and the lower anti-curling roller 53, the roll of paper completes the final compression, thereby preventing the curling phenomenon.
[0023] The embodiments described above are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the inventive concept, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.
Claims
1. A paper roll printing anti-curling and flattening device, comprising a machine body (1), a support column (2), a support frame (3), a flattening component, and an anti-curling component, characterized in that: Support columns (2) are fixedly installed at the four corners of the upper surface of the machine body (1). The support columns (2) support and lift the support frame (3). The support frame (3) fixes and supports the flattening assembly. A drive motor (11) is installed on one side of the machine body (1). The output shaft of the drive motor (11) is fixedly connected to a paper roll (12). A lower pressure roller (13) is attached to the upper part of the paper roll (12). Spring shafts (14) are fixedly installed at both ends of the lower pressure roller (13) for adjusting the gap between the telescopic lower pressure roller (13) and the paper roll (12). The paper roll (12) is inclined on one side. There is a small support plate (9), and a paper feeding roller (10) is vertically arranged at the end of the small support plate (9). A large support plate (6) is inclined parallel to the small support plate (9). The large support plate (6) is fixedly arranged on one side of the machine body (1). A drive motor (7) is vertically arranged on one side of the end of the large support plate (6). The output end of the drive motor (7) is fixedly connected to the roll shaft (8). The roll shaft (8) is vertically arranged on the other side of the end of the large support plate (6). The roll shaft (8) is parallel to the paper feeding roller (10). An anti-rolling component is arranged on one side of the flattening component on the upper surface of the machine body (1).
2. The anti-curling and smoothing device for book and periodical roll paper printing as described in claim 1, characterized in that: The flattening assembly includes a hydraulic press (41), a telescopic shaft (42), a first pressure plate (43), a telescopic spring (44), and a second pressure plate (45). The hydraulic press (41) is fixedly supported in the center of the support frame (3). The output end of the hydraulic press (41) faces the upper surface of the machine body (1) and is fixedly connected to the first pressure plate (43). The telescopic shaft (42) is provided on both sides of the hydraulic press (41). The telescopic shaft (42) is vertically fixed on the support frame (3) and is also fixedly connected to the surface of the first pressure plate (43) at one end. Multiple telescopic springs (44) are fixedly connected to the lower surface of the first pressure plate (43), and the other end of the telescopic springs (44) is fixedly connected to the second pressure plate (45).
3. The book and magazine roll paper anti-curling and smoothing device as described in claim 2, characterized in that: A rubber sleeve (451) is fixedly provided on the lower surface of the second pressure plate (45) to prevent the pressure plate from directly contacting the surface of the roll paper when the roll paper is flattened.
4. The anti-curling and smoothing device for book and magazine roll paper printing as described in claim 1, characterized in that: The anti-rolling component includes a fixed frame (51), an anti-rolling roller (52), a downward anti-rolling roller (53), and a buffer spring (54). The fixed frame (51) is fixed on both sides of the upper surface of the machine body (1). The anti-rolling roller (52) is engaged in the lower half of the fixed frame (51). The upper half of the fixed frame (51) is provided with a downward anti-rolling roller (53). The surface of the downward anti-rolling roller (53) is in contact with the surface of the anti-rolling roller (52). A buffer spring (54) is engaged above the downward anti-rolling roller (53). The other end of the buffer spring (54) is engaged on the fixed frame (51).
5. The book and magazine roll paper anti-curling and smoothing device as described in claim 4, characterized in that: A groove (101) is provided on the upper surface of the machine body (1), and a fixing frame (51) is provided on both sides of the groove (101). The surface of the anti-rolling roller (52) is parallel to the upper surface of the machine body (1).
6. The anti-curling and smoothing device for book and magazine roll paper printing as described in claim 1, characterized in that: The paper roll (12) and the paper unwinding roll (10) are provided with a layer of mesh sponge sleeve (121) to improve the stability of the paper roll conveying.