Flexible plate printing machine
Independent servo motors and adjustable components in flexible plate printers stabilize roll synchronization and pressure, addressing transmission instability and enhancing print quality and efficiency.
Patent Information
- Application Number
- CN202422536398.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-10-21
AI Technical Summary
In traditional flexographic printing machines, the synchronization accuracy between the anilox roller and the printing roller is difficult to ensure, resulting in fluctuations in printing quality, especially when the gear transmission instability is serious during high-speed operation, which cannot meet the market demand for high printing quality and stability.
The independent first servo motor and the second servo motor are used to drive the anilox roller and the printing roller respectively, and synchronous rotation is achieved through the transmission mechanism. Combined with the adjustment component and the lock release component, the pressure of the printing roller to the anilox roller and the printing roller is accurately controlled to improve synchronization and stability.
The rotational stability and synchronization of the anilox roller and the printing roller are improved, jitter is reduced, printing quality is improved, production efficiency and printing effect are improved.
Smart Images
Figure CN223100206U_ABST
Abstract
Description
Technical Field
[0002] This application belongs to the technical field of printing presses, and particularly relates to a flexographic printing press.
Background Art
[0004] Traditional flexographic printing presses usually use a single servo motor to drive the impression roller and indirectly drive the anilox roller through a gear transmission system. This design has several limitations in practical applications, mainly manifested in insufficient transmission stability. Due to the wear of gear transmission, it is difficult to ensure the synchronization accuracy between the anilox roller and the impression roller. Especially during high-speed operation, this instability is more obvious, resulting in fluctuations in printing quality, such as overprinting errors and uneven ink color, etc., and it can no longer meet the market's demand for high printing quality and stability. Therefore, it is necessary to improve the existing technology to improve the transmission accuracy and stability of the flexographic printing press and meet the growing requirements for printing quality.
Utility Model Content
[0006] In order to solve the problem in the prior art that it is difficult to ensure the synchronization accuracy between the anilox roller and the impression roller due to the wear of gear transmission in traditional flexographic printing, this application provides a flexographic printing press.
[0007] This application is achieved through the following technical solutions:
[0008] A flexographic printing press includes an installation table, an impression roller, an anilox roller, and an impression cylinder disposed on the installation table, a first servo motor and a second servo motor respectively driving the anilox roller and the impression cylinder to rotate, and a transmission mechanism driving the impression roller and the anilox roller to rotate synchronously.
[0009] In the flexographic printing press as described above, the transmission mechanism includes a driven gear disposed at one end of the impression roller, and a driving gear disposed at one end of the anilox roller and meshing with the driven gear.
[0010] In the flexographic printing press as described above, it further includes two adjustment components respectively disposed at both ends of the impression roller and used to adjust the up and down floating of the impression roller in the vertical direction. When the impression roller floats upward, the pressure exerted by the impression roller on the anilox roller and the impression cylinder decreases; when the impression roller floats downward, the pressure exerted by the impression roller on the anilox roller and the impression cylinder increases.
[0011] In the flexographic printing press as described above, the adjustment component includes an abutting member disposed at one end of the impression roller, a movable hinge member disposed on the installation table, and two telescopic knob mechanisms respectively disposed at both ends of the movable hinge member. The inner side wall of the movable hinge member is provided with a petal-shaped curved surface that gradually extends from the inside to the outside, and the abutting member abuts against the petal-shaped curved surface.
[0012] A flexographic printing press as described above, wherein the telescopic knob mechanism comprises a positioning seat provided on the mounting table and a knob member. A threaded hole is formed in the positioning seat, and the knob member passes through the threaded hole and abuts against the movable hinge member.
[0013] A flexographic printing press as described above further comprises a release locking assembly. An annular side wall extending outward is provided on the abutting member, and the release locking assembly abuts against or releases the annular side wall to keep the abutting member and the movable hinge member locked or unlocked.
[0014] A flexographic printing press as described above, wherein the release locking assembly comprises a mounting seat, a telescopic cylinder provided on the mounting seat, and a release locking claw hinged to the output end of the telescopic cylinder. An arc-shaped notch is provided on the release locking claw, and a limiting rod passing through the arc-shaped notch is provided on the mounting seat. When the telescopic cylinder extends or retracts, the limiting rod slides along the arc-shaped notch, thereby driving the release locking claw to rotate forward to abut against the annular side wall or rotate backward to release the annular side wall.
[0015] A flexographic printing press as described above, wherein the anilox roll and the printing substrate roll are on the same horizontal line, and the printing roll is stacked above the anilox roll and the printing substrate roll.
[0016] A flexographic printing press as described above, wherein the distance between the anilox roll and the printing substrate roll is S, and the diameter of the printing roll is L, where L > S.
[0017] Compared with the prior art, the present application has the following advantages:
[0018] In a flexographic printing press of the present application, by respectively configuring independent first and second servo motors for the anilox roll and the printing substrate roll to drive their rotation, the stability and synchronization of the rotation of the anilox roll and the printing substrate roll are improved, problems such as asynchrony and jitter caused by gear transmission wear are reduced, the printing quality is improved, and the production efficiency is increased. At the same time, the use of independent servo motors enables more precise control of the anilox roll and the printing substrate roll, further improving the printing effect.
Description of the Drawings
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0021] Figure 1 It is a three-dimensional perspective view in the embodiments of the present application;
[0022] Figure 2Yes Figure 1 Partial exploded view of
[0023] Figure 3 Yes Figure 1 Top view of
[0024] Figure 4 Yes Figure 3 Cross-sectional view taken along line A-A in
[0025] Figure 5 Is a three-dimensional solid view of the impression cylinder and anilox roll of a traditional printing press.
Specific Embodiments
[0027] In order to make the technical problems, technical solutions and beneficial effects solved by this application clearer and more understandable, the following further details this application in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.
[0028] Please refer to Figures 1 to 5 , a flexographic printing press, including an installation table 1, an impression cylinder 2, an anilox roll 3 and a printing cylinder 4 disposed on the installation table 1, a first servo motor 5 and a second servo motor 6 respectively driving the anilox roll 3 and the printing cylinder 4 to rotate, and a transmission mechanism 7 driving the impression cylinder 2 and the anilox roll 3 to rotate synchronously.
[0029] In a flexographic printing press of this application, by respectively configuring independent first and second servo motors for the anilox roll and the printing cylinder to drive their rotation, the stability and synchronism of the rotation of the anilox roll and the printing cylinder are improved, reducing problems such as asynchronism and jitter caused by gear transmission wear, improving the printing quality, and increasing the production efficiency. At the same time, the use of independent servo motors enables more precise control of the anilox roll and the printing cylinder, further enhancing the printing effect.
[0030] Further, as a preferred implementation manner of this solution rather than a limitation, the transmission mechanism 7 includes a driven gear 71 disposed at one end of the impression cylinder 2, and a driving gear 72 disposed at one end of the anilox roll 3 and meshing with the driven gear 71.
[0031] In this embodiment, by setting a driven gear at one end of the impression cylinder and a driving gear at one end of the anilox roll to achieve the synchronous rotation of the impression cylinder and the anilox roll, compared with the traditional design where the printing cylinder is driven by a servo motor and then the rotation is transmitted to the anilox roll through gear transmission, and the anilox roll then transmits the rotation to the impression cylinder through gear transmission, the anilox roll in this solution is more stable with an independent servo motor drive, further improving the stability and efficiency of printing.
[0032] Further, as a preferred implementation manner of this solution rather than a limitation, it further includes two adjusting components 8 respectively arranged at both ends of the printing roller 2 and used for adjusting the up-and-down floating of the printing roller 2 in the vertical direction. When the printing roller 2 floats upward, the pressure exerted by the printing roller 2 on the anilox roller 3 and the printing substrate roller 4 decreases. When the printing roller 2 floats downward, the pressure exerted by the printing roller 2 on the anilox roller 3 and the printing substrate roller 4 increases.
[0033] In this embodiment, since the printing roller, the anilox roller, and the printing substrate roller of the traditional printing machine are arranged on the same horizontal line, when the machine is running, as Figure 5 shown, the printing roller and the anilox roller will be pressed against the printing substrate roller on their left side as a whole by the air cylinder. When adjusting the pressure, it is adjusted by rotating the screw rod. Because the force of the air cylinder and the force of the adjusting rod are opposite, the adjusting rod rotates relatively tightly and is relatively difficult to adjust when adjusting. By arranging the adjusting components at both ends of the printing roller, the up-and-down floating of the printing roller in the vertical direction can be realized, so as to adjust the pressure of the printing roller on the anilox roller and the printing substrate roller. This method of adjusting the pressure is more relaxed and the fineness is easier to grasp. When the printing roller floats upward, the pressure it exerts on the anilox roller and the printing substrate roller decreases. When the printing roller floats downward, the pressure it exerts on the anilox roller and the printing substrate roller increases. The pressure is adjusted according to different printing requirements to adapt to the printing requirements of different materials and thicknesses, and the applicability and flexibility of the equipment are improved.
[0034] Further, as a preferred implementation manner of this solution rather than a limitation, the adjusting component 8 includes an abutting member 81 arranged at one end of the printing roller 2, a movable hinge member 82 arranged on the mounting table 1, and two telescopic knob mechanisms 83 respectively arranged at both ends of the movable hinge member 82. The inner side wall of the movable hinge member 82 is provided with a petal-shaped curved surface 821 that gradually extends from the inside to the outside, and the abutting member 81 abuts against the petal-shaped curved surface 821.
[0035] In this embodiment, by arranging an abutting member at one end of the printing roller and arranging a movable hinge member and a telescopic knob mechanism on the mounting table, the up-and-down floating adjustment of the printing roller in the vertical direction is realized. Among them, the inner side wall of the movable hinge member is provided with a petal-shaped curved surface that gradually extends from the inside to the outside and abuts against the abutting member. By rotating the telescopic knob mechanism, the movable hinge member can be expanded or contracted, so that the printing roller slides up and down along the petal-shaped curved surface, and then the printing roller is lifted or lowered to realize the height adjustment of the printing roller. This design has a simple structure and convenient operation, can accurately control the pressure of the printing roller on the anilox roller and the printing substrate roller, and improves the printing quality.
[0036] Further, as a preferred implementation manner rather than a limitation of the present solution, the telescopic knob mechanism 83 includes a positioning seat 831 provided on the mounting table 1 and a knob member 832. A threaded hole 8311 is defined in the positioning seat 831, and the knob member 832 passes through the threaded hole 8311 and abuts against the movable hinge member 82.
[0037] In this embodiment, by providing a positioning seat and a knob member on the mounting table and opening a threaded hole in the positioning seat, precise adjustment of the movable hinge member is achieved. The knob member passes through the threaded hole and abuts against the movable hinge member. By rotating the knob member, the extrusion force applied to the movable hinge member can be changed, thereby adjusting the height of the printing roller. This design structure is simple and easy to operate, capable of achieving fine adjustment of the printing roller pressure and improving the printing quality. At the same time, due to the cooperation between the knob member and the threaded hole, stable positioning of the movable hinge member can be realized, preventing it from loosening or shifting during the working process.
[0038] Further, as a preferred implementation manner rather than a limitation of the present solution, it further includes a release lock assembly 9. An annular side wall 811 extending outward is provided on the abutting member 81, and the release lock assembly 9 abuts against or releases from the annular side wall 811 to keep the abutting member 81 and the movable hinge member 82 locked or unlocked.
[0039] In this embodiment, by providing an annular side wall extending outward on the abutting member and cooperating with the release lock assembly, the function of locking or unlocking between the abutting member and the movable hinge member is realized. When it is necessary to remove the printing roller for cleaning or replacement, the release lock assembly can be operated to separate it from the annular side wall, unlocking the abutting member, and then the printing roller can be taken out upward to complete the disassembly; after the disassembly is completed, the release lock assembly can be operated to abut against the annular side wall, keeping the abutting member and the movable hinge member in a locked state to prevent them from loosening or shifting during the working process. The printing roller forms pressure on the anilox roller and the printing substrate roller through its own gravity and the cooperation of the release lock assembly, and the pressure can be reduced by the upward push of the adjustment assembly on the printing roller. This design can improve the stability and reliability of the equipment and avoid printing quality problems caused by improper adjustment.
[0040] Further, as a preferred implementation manner rather than a limitation of the present solution, the release lock assembly 9 includes a mounting seat 91, a telescopic cylinder 92 provided on the mounting seat 91, and a release lock claw 93 hinged to the output end of the telescopic cylinder 92. An arc-shaped notch 931 is provided on the release lock claw 93, and a limiting rod 94 passing through the arc-shaped notch 931 is provided on the mounting seat 91. The telescopic cylinder 92 extends or retracts, causing the limiting rod 94 to slide along the arc-shaped notch 931, thereby driving the release lock claw 93 to rotate forward to abut against the annular side wall 811 or rotate backward to release from the annular side wall 811.
[0041] In this embodiment, by providing a telescopic cylinder and a release lock claw on the mounting base, an arc-shaped notch on the release lock claw, and a limiting rod passing through the arc-shaped notch on the mounting base, the function of locking or unlocking between the abutting member and the movable hinge member is realized. When unlocking is required, the telescopic cylinder extends, driving the release lock claw to rotate forward, causing the limiting rod to slide along the arc-shaped notch, and further separating the release lock claw from the annular side wall; when locking is required, the telescopic cylinder retracts, driving the release lock claw to rotate backward, causing the limiting rod to slide along the arc-shaped notch, and further making the release lock claw abut against the annular side wall. This design structure is simple and easy to operate, and can quickly lock or unlock the abutting member and the movable hinge member, improving the stability and reliability of the equipment.
[0042] Further, as a preferred implementation manner rather than a limitation of this solution, the anilox roll 3 and the impression roll 4 are located on the same horizontal line, and the printing roll 2 is stacked above the anilox roll 3 and the impression roll 4.
[0043] In this embodiment, by arranging the anilox roll and the impression roll on the same horizontal line and stacking the printing roll above the anilox roll and the impression roll, it is convenient to directly take out the printing roll upward during disassembly. In the traditional design, the printing roll, the anilox roll, and the impression roll are located on the same horizontal line, and it is not convenient to take out the printing roll in the application scenario where only the printing roll needs to be disassembled. This design, combined with the adjustment component, not only realizes convenient disassembly but also enables pressure adjustment, facilitating the maintenance and operation of the user.
[0044] Further, as a preferred implementation manner rather than a limitation of this solution, the distance between the anilox roll 3 and the impression roll 4 is S, and the diameter of the printing roll 2 is L, where L > S.
[0045] The working principle of this embodiment is as follows:
[0046] A flexographic printing press of the present application drives the rotation of the anilox roll and the impression roll by respectively configuring independent first and second servo motors, thereby improving the stability and synchronism of the rotation of the anilox roll and the impression roll, reducing problems such as asynchronism and jitter caused by gear transmission wear, improving the printing quality, and increasing the production efficiency. At the same time, the use of independent servo motors makes the control of the anilox roll and the impression roll more precise, further improving the printing effect.
[0047] The above are the implementation manners provided in combination with specific contents, and it is not considered that the specific implementation of the present application is only limited to these descriptions. Any similarity to the method structure of the present application, or any technical deduction or replacement made under the premise of the concept of the present application, should be regarded as the protection scope of the present application.
Claims
1. A flexographic printing press, characterized in that, It includes an installation table (1), an impression roller (2) arranged on the installation table (1), an anilox roller (3) and a printing cylinder (4), a first servo motor (5) and a second servo motor (6) respectively driving the anilox roller (3) and the printing cylinder (4) to rotate, and a transmission mechanism (7) driving the impression roller (2) and the anilox roller (3) to rotate synchronously.
2. The flexographic printing press according to claim 1, wherein, The transmission mechanism (7) includes a driven gear (71) arranged at one end of the impression roller (2), and a driving gear (72) arranged at one end of the anilox roller (3) and meshing with the driven gear (71).
3. The flexographic printing press according to claim 1, wherein It further includes two adjusting components (8) respectively arranged at both ends of the impression roller (2) and used for adjusting the up and down floating of the impression roller (2) in the vertical direction. When the impression roller (2) floats upward, the pressure exerted by the impression roller (2) on the anilox roller (3) and the printing cylinder (4) decreases. When the impression roller (2) floats downward, the pressure exerted by the impression roller (2) on the anilox roller (3) and the printing cylinder (4) increases.
4. The flexographic printing press according to claim 3, wherein, The adjusting component (8) includes an abutting member (81) arranged at one end of the impression roller (2), a movable hinge member (82) arranged on the installation table (1), and two telescopic knob mechanisms (83) respectively arranged at both ends of the movable hinge member (82). The inner side wall of the movable hinge member (82) is provided with a petal-shaped curved surface (821) gradually extending from the inside to the outside, and the abutting member (81) abuts against the petal-shaped curved surface (821).
5. A flexographic printing press according to claim 4, characterized in that, The telescopic knob mechanism (83) includes a positioning seat (831) arranged on the installation table (1) and a knob member (832). A threaded hole (8311) is opened on the positioning seat (831), and the knob member (832) passes through the threaded hole (8311) and abuts against the movable hinge member (82).
6. A flexographic printing press according to claim 4, wherein, It further includes a release locking component (9). An annular side wall (811) extending outward is arranged on the abutting member (81). The release locking component (9) abuts against or releases the annular side wall (811) to keep the abutting member (81) and the movable hinge member (82) locked or unlocked.
7. An flexographic printing press according to claim 6, wherein, The release locking component (9) includes a mounting seat (91), a telescopic cylinder (92) arranged on the mounting seat (91), a release locking claw (93) hinged to the output end of the telescopic cylinder (92). An arc-shaped notch (931) is arranged on the release locking claw (93), and a limiting rod (94) passing through the arc-shaped notch (931) is arranged on the mounting seat (91). When the telescopic cylinder (92) extends or retracts, the limiting rod (94) slides along the arc-shaped notch (931), thereby driving the release locking claw (93) to rotate forward to abut against the annular side wall (811) or rotate backward to release the annular side wall (811).
8. A flexographic printing press according to claim 1, wherein, The anilox roller (3) and the printing cylinder (4) are located on the same horizontal line, and the impression roller (2) is stacked above the anilox roller (3) and the printing cylinder (4).
9. The flexographic printing press according to claim 8, wherein, The spacing distance between the anilox roll (3) and the printing cylinder (4) is S, and the diameter of the printing roll (2) is L, where L > S.