A transfer structure for a decorative paper intaglio printing machine
By combining the design of the correction component, the conveying auxiliary component, and the tilt adjustment component, the problems of poor correction and adaptability of the decorative paper gravure printing press during high-speed operation are solved, and stable paper belt conveying and efficient production are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANDONG YANSEN NEW MATERIALS CO LTD
- Filing Date
- 2026-04-30
- Publication Date
- 2026-06-12
AI Technical Summary
The existing conveyor structure of decorative paper gravure printing presses is difficult to achieve rapid correction and dynamic adjustment during high-speed operation, and has poor adaptability to paper tapes of different thicknesses and tensions, which can easily cause excessive compression or slippage.
The design employs a combination of a correction component, a conveying auxiliary component, and an tilt adjustment component. By utilizing the coordinated operation of a linear module, a hydraulic pump, and spring components, it achieves rapid response of the correction roller and real-time dynamic correction of the paper tape. Combined with the hydraulic pump, it adjusts the spacing and tilt angle of the conveying rollers to adapt to different paper tape thicknesses and tensions.
It achieves stability and alignment accuracy of paper tape during high-speed transport, reduces the risk of excessive compression or slippage, and improves the equipment's adaptability to different printing conditions and production efficiency.
Smart Images
Figure CN122186805A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of gravure printing press technology, and more specifically, to a conveying structure for a decorative paper gravure printing press. Background Technology
[0002] Decorative paper gravure printing machines are key equipment for producing decorative materials such as furniture veneer paper, flooring paper, and wallpaper. They belong to the unit-type roll-to-roll gravure printing machine category. By filling the grooves of the printing plate cylinder with ink and then transferring it to the paper surface, they achieve high-precision printing of continuous patterns such as wood grain and stone texture.
[0003] The core advantages of this equipment lie in its thick ink layer, high color saturation, and strong sense of layering, which can perfectly reproduce the three-dimensional texture of decorative patterns. Modern models are typically equipped with automatic registration, tension control, and hot air drying systems, supporting high-speed 8-10 color line production at speeds of 200-300 meters per minute, significantly improving production efficiency.
[0004] Traditional printing presses typically use fixed guide rollers or manually adjustable rollers for correction, which have slow response speeds, limited adjustment accuracy, and difficulty in achieving dynamic compensation during high-speed operation.
[0005] Meanwhile, existing conveying structures mostly use fixed or simple mechanical adjustment for the clamping pressure of paper tape, which is not adaptable to paper tapes of different thicknesses and tensions, and is prone to excessive squeezing or slippage.
[0006] Therefore, in view of this, the existing structure is studied and improved to provide a conveying structure for a decorative paper gravure printing machine, in order to achieve a more practical purpose. Summary of the Invention
[0007] 1. Technical problems to be solved To address the problems existing in the prior art, the present invention aims to provide a conveying structure for a decorative paper gravure printing machine. This structure enables the correction roller to respond quickly to paper tape deviation, achieving real-time dynamic correction. While providing appropriate paper tape pressure, it avoids compression deformation, ensuring the stability and alignment accuracy of the paper tape during high-speed conveying. It also exhibits good adaptability to paper tapes of different thicknesses and tensions, and is less prone to excessive compression or slippage.
[0008] 2. Technical Solution To solve the above problems, the present invention adopts the following technical solution.
[0009] A conveying structure for a decorative paper gravure printing machine includes a frame, which is composed of a cavity support and a bottom support. A protective cover is fixed to the top of the frame. A correction component is provided at the front end of the inner side of the protective cover. A conveying auxiliary component is provided at the middle position of the inner side of the protective cover. An angle adjustment component is provided at the rear end of the protective cover. The correction assembly includes a movable bracket, with correction rollers movably connected to both ends of the movable bracket via bearings. A bearing seat is fixed to one side of the top of the cavity support. One end of the movable bracket is movably connected to the bearing seat via a rotating shaft and bearing. An arc-shaped track is fixed to the other side of the top of the cavity support. The other end of the movable bracket slides along the arc-shaped track via a revolving shaft. A linear module is hidden and fixed inside the cavity support. A limit bracket is fixed to the movable part of the linear module. The bottom end of the movable bracket moves inside the limit bracket.
[0010] Furthermore, the rotation axis of the arc-shaped track, the rotation axis of the self-rotating shaft, and the revolution axis of the orbital shaft are collinear, and the self-rotating shaft, the orbital shaft, and the movable support form a three-in-one fixed structure.
[0011] Furthermore, a first limiting plate is fixedly installed on the middle of the side of the revolution shaft, and the diameter of the first limiting plate is greater than the radial thickness of the arc track. The angle between the revolution shaft and the horizontal axis during rotation ranges from -6° to 6°.
[0012] Furthermore, a second limiting disc is fixedly installed on the bottom side of the revolution shaft, and the second limiting disc slides inside the limiting bracket.
[0013] Furthermore, the conveying auxiliary component includes a combined support frame, which is fixed inside the protective cover. The bottom layer of the combined support frame is movably connected to three conveying bottom rollers via bearings, and the middle layer of the combined support frame is fixedly connected to a three-sleeve assembly. The three openings of the three-sleeve assembly are movably connected to conveying top rollers via corresponding bearings.
[0014] Furthermore, a hydraulic pump is fixedly installed at the top of the combined support frame, and the output end of the hydraulic pump is provided with three synchronous output shafts, each of which is fixed at a position corresponding to the top of the three-sleeve combination.
[0015] Furthermore, several spring components are fixed between the bottom end of the three-sliding sleeve and the bottom layer of the combined support frame.
[0016] Furthermore, the tilt adjustment assembly includes a high-level support frame, on the bottom layer of which a second hydraulic pump is fixedly installed. A single sliding sleeve is fixed to the output end of the second hydraulic pump, and the single sliding sleeve is movably connected to a steering roller shaft via a bearing. The steering roller shaft slides along the middle of the high-level support frame.
[0017] Furthermore, the minimum height of the steering roller shaft is greater than the maximum height of the three-sleeve combination.
[0018] 3. Beneficial Effects Compared with the prior art, the advantages of this invention are: ① In this solution, the web guiding component precisely controls the movement of the limit bracket through a linear module, driving the revolution shaft to deflect within the arc track in the range of -6° to 6°, enabling the web guiding roller to respond quickly to paper tape offset and achieve real-time dynamic correction. Combined with the mechanical locking function of the linear module, the angle can be fixed after correction to prevent rebound. At the same time, the conveying auxiliary component uses a hydraulic pump and spring components to smoothly adjust the distance between the top and bottom conveying rollers, providing appropriate paper tape pressure while avoiding compression deformation, ensuring the stability and alignment accuracy of the paper tape during high-speed conveying. It has good adaptability to paper tapes of different thicknesses and tensions, and is not prone to excessive compression or slippage. ② This solution utilizes an angle adjustment component to independently control the height of the steering roller shaft via a second hydraulic pump, allowing for adjustable paper tape output angles to adapt to the needs of various subsequent processes. The linkage design of the three sliding sleeves and three top conveyor rollers in the conveying auxiliary component, combined with adjustable spacing, ensures compatibility with decorative paper of varying thicknesses and tensions. The entire system forms a coherent automated control chain from correction and conveying to angle adjustment, enhancing the equipment's adaptability to different printing conditions and process requirements, reducing the frequency of manual intervention, and improving production efficiency and product quality stability. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the conveying structure of the decorative paper gravure printing machine in this invention; Figure 2 This is a schematic plan view of the conveying structure of the decorative paper gravure printing machine in this invention; Figure 3 This is a schematic diagram of the structure of the correction component, the transmission auxiliary component, and the tilt adjustment component used in combination in this invention; Figure 4 This is a three-dimensional structural diagram of the correction component in this invention; Figure 5 This is a three-dimensional structural diagram of the transmission auxiliary component in this invention; Figure 6 This is a schematic diagram of the planar structure of the transmission auxiliary component in this invention; Figure 7 This is a three-dimensional structural diagram of the tilt adjustment component in this invention.
[0020] Explanation of the labels in the diagram: 1. Rack; 101. Cavity support; 1011. Bearing housing; 1012. Arc-shaped track; 102. Bottom support frame; 2. Protective cover; 3. Correction assembly; 301. Movable support; 302. Correction roller; 303. Rotating shaft; 304, Revolution shaft; 3041, First limit plate; 3042, Second limit plate; 305. Linear module; 306. Limiting bracket; 4. Conveying auxiliary components; 401. Modular support frame; 402. Conveying bottom roller; 403, triple sliding sleeve; 4031, spring component; 404. Conveyor top roller; 405. No. 1 hydraulic pump; 4051. Synchronous output shaft; 5. Inclination adjustment assembly; 501. High-position support frame; 502. No. 2 hydraulic pump; 503. Single sliding sleeve; 504. Steering roller shaft. Detailed Implementation
[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. Example 1:
[0022] Please see Figures 1-7 A conveying structure for a decorative paper gravure printing machine includes a frame 1, which is composed of a cavity support 101 and a bottom support 102. A protective cover 2 is fixed at the top of the frame 1. A correction component 3 is provided at the front end of the interior of the protective cover 2. A conveying auxiliary component 4 is provided at the middle position of the interior of the protective cover 2. An angle adjustment component 5 is provided at the rear end of the protective cover 2. The correction assembly 3 includes a movable bracket 301, with correction rollers 302 movably connected to both ends of the movable bracket 301 via bearings. A bearing seat 1011 is fixed to one side of the top of the cavity support 101. One end of the movable bracket 301 is movably connected to the bearing seat 1011 via a rotating shaft 303 and a bearing. An arc-shaped track 1012 is fixed to the other side of the top of the cavity support 101. The other end of the movable bracket 301 slides along the arc-shaped track 1012 via a revolving shaft 304. A linear module 305 is hidden and fixed inside the cavity support 101. A limit bracket 306 is fixed to the movable part of the linear module 305. The bottom end of the movable bracket 301 moves inside the limit bracket 306. Example 2:
[0023] Based on the above embodiment 1, further description is provided.
[0024] See Figure 1 , Figure 2 , Figure 3 , Figure 4 Specifically, the rotation axis of the arc track 1012, the rotation axis of the self-rotating shaft 303, and the revolution axis of the revolution shaft 304 are collinear, and the self-rotating shaft 303, the revolution shaft 304, and the movable support 301 form a three-in-one fixed structure.
[0025] In this way, the rotation of the self-rotating shaft 303 can ensure that the revolution shaft 304 and the movable support 301 rotate synchronously and effectively.
[0026] Specifically, a first limiting plate 3041 is fixedly installed on the middle of the side of the revolution shaft 304. The diameter of the first limiting plate 3041 is greater than the radial thickness of the arc track 1012.
[0027] In this way, when the revolution shaft 304 rotates inside the arc-shaped track 1012, it is prevented from disengaging from the arc-shaped track 1012, thus ensuring the stability of the three-in-one fixed structure during rotation.
[0028] The angle between the revolution shaft 304 and the horizontal axis during rotation ranges from -6° to 6°.
[0029] Determine the rotation angle P of the revolution shaft 304; When P=0, the correction roller 302 is perpendicular to the transmission direction of the decorative paper, and no correction is required at this time; When -6°≤P<0, the correction roller 302 can correct the positive deviation of the decorative paper until the correction operation is completed and P is adjusted to 0. When 0 < P0 ≤ 6°, the correction roller 302 can correct the negatively biased decorative paper until the correction operation is completed and P is adjusted to 0.
[0030] Specifically, a second limiting plate 3042 is fixedly installed on the bottom side of the revolution shaft 304, and the second limiting plate 3042 slides inside the limiting bracket 306.
[0031] When the linear module 305 controls the movement of the limiting bracket 306, it will push the second limiting disk 3042 to move. Since there is a sliding space for the second limiting disk 3042 inside the limiting bracket 306, the two work together, combined with the revolution limiting of the revolution shaft 304, to control the rotation of the revolution shaft 304 and the second limiting disk 3042. Furthermore, by controlling the distance that the limiting bracket 306 moves, the rotation angle of the revolution shaft 304 and the second limiting disk 3042 can be precisely controlled.
[0032] Furthermore, the linear module 305 is equipped with a mechanical locking structure. After the moving part of the linear module 305 moves a certain distance, it can be locked, thus locking the angle of the revolution shaft 304 and the second limit plate 3042 after rotation.
[0033] See Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 Specifically, the conveying auxiliary component 4 includes a combined support frame 401, which is fixed inside the protective cover 2. The bottom layer of the combined support frame 401 is movably connected to three conveying bottom rollers 402 via bearings, and the middle layer of the combined support frame 401 is fixedly connected to a three-sliding sleeve 403. The three openings of the three-sliding sleeve 403 are respectively movably connected to conveying top rollers 404 via corresponding bearings.
[0034] The top conveyor roller 404 can slide up and down, thereby adjusting the distance between the top conveyor roller 404 and the bottom conveyor roller 402. When the distance between the top conveyor roller 404 and the bottom conveyor roller 402 increases, the decorative paper can pass through more easily. When the distance between the top conveyor roller 404 and the bottom conveyor roller 402 decreases, a certain pressure can be applied to the decorative paper between them, thereby ensuring the effective transmission of the decorative paper.
[0035] Specifically, a hydraulic pump 405 is fixedly installed at the top of the combined support frame 401. The output end of the hydraulic pump 405 is provided with three synchronous output shafts 4051, and each synchronous output shaft 4051 is fixed at the corresponding position of the top of the three-sleeve 403.
[0036] The height of the three-sleeve 403 can be controlled by using the No. 1 hydraulic pump 405 in conjunction with the synchronous output shaft 4051.
[0037] Specifically, several spring components 4031 are fixed between the bottom end of the three-sliding sleeve 403 and the bottom layer of the combined support frame 401.
[0038] When the three-slide sleeve 403 moves up and down, the deformation of the spring 4031 can slow down the lifting speed of the three-slide sleeve 403 and improve the stability of the lifting adjustment of the three-slide sleeve 403.
[0039] See Figure 1 , Figure 2 , Figure 3 , Figure 7Specifically, the tilt adjustment component 5 includes a high-level support frame 501. A second hydraulic pump 502 is fixedly installed at the bottom of the high-level support frame 501. A single sliding sleeve 503 is fixed at the output end of the second hydraulic pump 502. The single sliding sleeve 503 is movably connected to a steering roller shaft 504 through a bearing. The steering roller shaft 504 slides along the middle of the high-level support frame 501.
[0040] The height of the single sliding sleeve 503 and the steering roller shaft 504 can be controlled by using the No. 2 hydraulic pump 502.
[0041] Specifically, the minimum height of the steering roller shaft 504 is greater than the maximum height of the three-sleeve sleeve 403.
[0042] This ensures that the steering roller 504 has a steering function, while controlling the output angle of the decorative paper.
[0043] Working principle: During the printing process, the decorative paper enters the protective cover 2 and first undergoes position correction by the correction component 3, specifically: When the paper tape deviates, the linear module 305 drives its movable part to move the limiting bracket 306, pushing the second limiting disk 3042 at the bottom of the revolution shaft 304, causing the revolution shaft 304 to slide along the arc track 1012. At the same time, the rotation shaft 303 rotates within the bearing seat 1011, causing the movable bracket 301 to deflect around the collinear axis, thereby adjusting the angle of the correction roller 302 and applying a lateral correction force to the paper tape. After correction is completed, the linear module 305 locks its position, keeping the angle of the correction roller 302 stable.
[0044] Subsequently, the decorative paper enters the conveying auxiliary assembly 4. The synchronous output shaft 4051, driven by the first hydraulic pump 405, controls the vertical lifting and lowering of the three-linked sliding sleeve 403 on the combined support frame 401, adjusting the distance between the top conveyor roller 404 and the bottom conveyor roller 402. The spring element 4031 buffers the lifting process, ensuring stable pressure. After adjustment, the top conveyor roller 404 and the bottom conveyor roller 402 clamp the paper strip, providing stable power transmission.
[0045] Finally, the paper tape enters the tilt adjustment component 5, and the second hydraulic pump 502 drives the single sliding sleeve 503 to rise and fall, causing the steering roller shaft 504 to slide within the high-position support frame 501, changing the output angle of the paper tape to meet the winding or guiding requirements of subsequent processes.
[0046] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.
Claims
1. A conveying structure for a decorative paper gravure printing machine, comprising a frame (1), said frame (1) being composed of a cavity support (101) and a bottom support frame (102), characterized in that: The top of the frame (1) is fixed with a protective cover (2), the front end of the inner side of the protective cover (2) is provided with a correction component (3), the middle position of the inner side of the protective cover (2) is provided with a conveying auxiliary component (4), and the rear end of the protective cover (2) is provided with a tilt adjustment component (5). The correction component (3) includes a movable bracket (301), with correction rollers (302) movably connected to both ends of the movable bracket (301) via bearings. A bearing seat (1011) is fixed on one side of the top of the cavity support (101). One end of the movable bracket (301) is movably connected to the bearing seat (1011) via a rotating shaft (303) and a bearing. An arc track (1012) is fixed on the other side of the top of the cavity support (101). The other end of the movable bracket (301) slides along the arc track (1012) via a revolving shaft (304). A linear module (305) is hidden and fixed inside the cavity support (101). A limit bracket (306) is fixed to the movable part of the linear module (305). The bottom end of the movable bracket (301) moves inside the limit bracket (306).
2. The conveying structure of a decorative paper gravure printing machine according to claim 1, characterized in that: The rotation axis of the arc track (1012), the rotation axis of the self-rotating shaft (303), and the revolution axis of the orbital shaft (304) are collinear, and the self-rotating shaft (303), the orbital shaft (304), and the movable bracket (301) form a three-in-one fixed structure.
3. The conveying structure of a decorative paper gravure printing machine according to claim 2, characterized in that: A first limiting plate (3041) is fixedly installed on the middle of the side of the revolution shaft (304), and the diameter of the first limiting plate (3041) is greater than the radial thickness of the arc track (1012). The angle between the revolution shaft (304) and the horizontal axis during rotation is -6° to 6°.
4. The conveying structure of a decorative paper gravure printing machine according to claim 2, characterized in that: The second limiting plate (3042) is fixedly installed on the bottom side of the revolution shaft (304), and the second limiting plate (3042) slides inside the limiting bracket (306).
5. The conveying structure of a decorative paper gravure printing machine according to claim 1, characterized in that: The conveying auxiliary component (4) includes a combined support frame (401), which is fixed inside the protective cover (2). The bottom layer of the combined support frame (401) is movably connected to three conveying bottom rollers (402) via bearings. The middle layer of the combined support frame (401) is fixedly connected to a three-sliding sleeve (403), and the three openings of the three-sliding sleeve (403) are respectively movably connected to conveying top rollers (404) via corresponding bearings.
6. The conveying structure of a decorative paper gravure printing machine according to claim 5, characterized in that: The top of the combined support frame (401) is fixedly installed with a No. 1 hydraulic pump (405). The output end of the No. 1 hydraulic pump (405) is provided with three synchronous output shafts (4051). Each synchronous output shaft (4051) is fixed at the corresponding position of the top of the three-sleeve (403).
7. The conveying structure of a decorative paper gravure printing machine according to claim 5, characterized in that: Several spring components (4031) are fixed between the bottom end of the three-sliding sleeve (403) and the bottom layer of the combined support frame (401).
8. The conveying structure of a decorative paper gravure printing machine according to claim 1, characterized in that: The tilt adjustment assembly (5) includes a high-level support frame (501), on which a second hydraulic pump (502) is fixedly installed. A single sliding sleeve (503) is fixed at the output end of the second hydraulic pump (502). The single sliding sleeve (503) is movably connected to a steering roller shaft (504) through a bearing. The steering roller shaft (504) slides along the middle of the high-level support frame (501).
9. The conveying structure of a decorative paper gravure printing machine according to claim 8, characterized in that: The lowest height of the steering roller shaft (504) is greater than the highest height of the three-sleeve sleeve (403).