Full-servo flexographic printing unit

Abstract

The utility model belongs to the field of printing equipment, and provides a full-servo flexographic printing unit which comprises a wall plate, a printing assembly and a driving assembly. The printing assembly comprises a plate roller, a printing roller and an anilox roller which are arranged in parallel, and further comprises rotating sleeves rotationally connected to the two ends of the plate roller. The driving assembly comprises a plate roller servo motor which is in transmission connection with the plate roller and is used for driving the plate roller to rotate, a printing roller servo motor which is in transmission connection with the printing roller and is used for driving the printing roller to rotate, and an anilox roller servo motor which is in transmission connection with the anilox roller and is used for driving the anilox roller to rotate; the pressure adjusting servo motor is in transmission connection with the rotating sleeve and used for driving the rotating sleeve to move relative to the wall plate in the radial direction of the plate roller, and the transverse adjusting servo motor is used for driving the plate roller to move relative to the wall plate in the axial direction of the plate roller.

Description

Technical Field

[0001] The present application belongs to the field of printing equipment, and more specifically, to a full-servo flexographic printing unit. Background Art

[0002] As an important part of the printing industry, printing equipment carries a long history and rich cultural heritage. Based on mechanical transmission, they realize the transfer of graphic information through parts such as plate rollers and printing rollers. These equipment have accumulated rich printing technology and experience in the long-term development process, laying a solid foundation for the development of the printing industry.

[0003] However, traditional printing equipment has obvious defects in adjustment accuracy. Specifically, these devices usually rely on manual operation to achieve various adjustments during the printing process, which is difficult to ensure high-precision control. During the printing process, the adjustment of key parameters such as printing pressure, speed, and position is often limited by the operator's skill level, resulting in deviations and instability in the printing results. Therefore, it is necessary to solve the above technical problems. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a full-servo flexographic printing unit to solve the technical problem of poor adjustment accuracy of printing equipment in the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in this application is to provide a full-servo flexographic printing unit, comprising:

[0006] Wall panels;

[0007] The printing assembly comprises a plate roller, a printing roller and an anilox roller arranged in parallel, and also comprises a rotating sleeve rotatably connected to both ends of the plate roller;

[0008] The driving assembly includes a plate roller servo motor which is connected to the plate roller and used for driving the plate roller, a printing roller servo motor which is connected to the printing roller and used for driving the printing roller, and an anilox roller servo motor which is connected to the anilox roller and used for driving the anilox roller. It also includes a pressure regulating servo motor which is connected to the rotating sleeve and used for driving the rotating sleeve to move along the radial direction of the plate roller relative to the wall panel, and a lateral regulating servo motor which is used for driving the plate roller to move along its own axial direction relative to the wall panel. The printing roller servo motor, the anilox roller servo motor and the pressure regulating servo motor are all fixedly mounted on the wall panel, and the plate roller servo motor and the lateral regulating servo motor are movably arranged relative to the wall panel.

[0009] Optionally, the driving assembly further comprises a sliding seat movably mounted on one of the rotating sleeves;

[0010] The wall panel is provided with a linear rail slidably connected to the sliding seat, and the linear rail is parallel to the moving path of the plate roller along the radial direction.

[0011] Optionally, the driving assembly further comprises a motor seat, and the plate roller servo motor and the lateral adjustment servo motor are both mounted on the motor seat;

[0012] The power end of the lateral adjustment servo motor is connected to a screw rod parallel to the plate roller, and the screw rod is threadedly connected to the sliding seat;

[0013] The output shaft of the plate roller servo motor is connected to an axial end of the plate roller corresponding to the extending shaft of the rotating sleeve.

[0014] Optionally, the motor seat is provided with a guide column which is parallel to the screw rod and slides through the sliding seat;

[0015] The guide pillars are arranged with two intervals and are distributed in a triangle with the rotating sleeve.

[0016] Optionally, a first worm gear reducer for reducing speed is transmission-connected between the power end of the lateral adjustment servo motor and the lead screw.

[0017] Optionally, the output end of the pressure regulating servo motor is connected to an eccentric shaft parallel to the plate roller;

[0018] The driving assembly also includes a pair of roller pillows that can be opened and closed and are used to support the rotating sleeve. One end of the roller pillow is hinged on the wall panel, and the other end is overlapped on the eccentric shaft.

[0019] Optionally, the end of the roller pillow away from the wall panel is protruded with a side ear, and the driving assembly further comprises an arc-shaped middle block sandwiched between the side ear and the wall panel;

[0020] The rotating sleeve abuts against the roller pillow through the arc-shaped middle block.

[0021] Optionally, the driving assembly further comprises a limit seat mounted on the wall panel, the limit seat forming a cavity for clamping the roller pillow between the limit seat and the wall panel;

[0022] The driving assembly also includes a limiting bolt threadedly connected to the limiting seat and capable of extending into the cavity, and a locking nut threadedly connected to the limiting bolt.

[0023] Optionally, a second worm gear reducer for reducing speed is transmission-connected between the power end of the pressure regulating servo motor and the eccentric shaft.

[0024] Optionally, a guide rail is connected to the arc-shaped middle block, and a guide groove slidably connected to the guide rail is provided on the wall panel;

[0025] The guide rail is arranged in parallel with the linear rail.

[0026] The beneficial effect of the full-servo flexographic printing unit provided in the present application is that: compared with the prior art, in the present application, the plate roller, the printing roller and the anilox roller are driven by the plate roller servo motor, the printing roller servo motor and the anilox roller servo motor respectively, and the rotating sleeves mounted on both ends of the plate roller can be driven by the pressure adjustment servo motor connected to the rotating sleeve through transmission, thereby driving the plate roller to move relative to the wallboard along its own radial direction to adjust the printing pressure between it and the printing roller; on the other hand, it can be driven by the lateral adjustment servo motor connected to the sliding seat through transmission, thereby driving the plate roller to move along its own axial direction and accurately align the plate with the printing roller. Therefore, the full-servo flexographic printing unit provided in the present application can realize precise control of each link in the printing process. Whether it is the movement of the plate roller or the adjustment of the printing speed, efficient, stable and precise operation can be achieved through the servo system, which is far superior to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 The overall structure of the full servo flexographic printing unit provided in the embodiment of the present application is shown in FIG. Figure 1 ;

[0029] Figure 2 The overall structure of the full servo flexographic printing unit provided in the embodiment of the present application is shown in FIG. Figure 2 ;

[0030] Figure 3 The overall structure of the full servo flexographic printing unit provided in the embodiment of the present application is shown in FIG. Figure 3 ;

[0031] Figure 4 A schematic diagram of the connection structure between the pressure regulating servo motor and the eccentric shaft provided in an embodiment of the present application;

[0032] Figure 5 for Figure 1 A partial enlarged view of point A in the middle.

[0033] Among them, the reference numerals in the figure are: 100, wall panel; 101, linear rail; 102, guide groove; 201, plate roller; 202, printing roller; 203, anilox roller; 204, rotating sleeve; 301, plate roller servo motor; 302, printing roller servo motor; 303, anilox roller servo motor; 304, pressure adjustment servo motor; 305, lateral adjustment servo motor; 306, sliding seat; 307, motor seat; 308, lead screw; 309, guide column; 310, first worm gear reducer; 311, eccentric shaft; 312, roller pillow; 313, side ear; 314, arc-shaped middle block; 315, limit seat; 316, cavity; 317, limit bolt; 318, locking nut; 319, second worm gear reducer; 320, guide rail. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0036] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] Please also read Figures 1 to 5 Now, a full-servo flexographic printing unit provided in an embodiment of the present application is described. The full-servo flexographic printing unit includes a wallboard 100, a printing component and a driving component. Among them:

[0039] The printing assembly includes a plate roller 201, a printing roller 202 and an anilox roller 203 arranged in parallel, and also includes a rotating sleeve 204 rotatably connected to both ends of the plate roller 201. In this embodiment, the plate roller 201 is used to move along its own radial direction to approach or move away from the printing roller 202 to adjust the printing pressure, and is also used to move along its own axial direction so as to better align the plate with the printing roller 202.

[0040] The driving assembly includes a plate roller servo motor 301 which is connected to the plate roller 201 and used to drive the plate roller 201, a printing roller servo motor 302 which is connected to the printing roller 202 and used to drive the printing roller 202, and a anilox roller servo motor 303 which is connected to the anilox roller 203 and used to drive the anilox roller 203. It also includes a pressure regulating servo motor 304 which is connected to the rotating sleeve 204 and used to drive the rotating sleeve 204 to move along the radial direction of the plate roller 201 relative to the wall panel 100, and a lateral adjustment servo motor 305 which is used to drive the plate roller 201 to move along its own axial direction relative to the wall panel 100. The printing roller servo motor 302, the anilox roller servo motor 303 and the pressure regulating servo motor 304 are all fixedly installed on the wall panel 100, and the plate roller servo motor 301 and the lateral adjustment servo motor 305 are movably arranged relative to the wall panel 100.

[0041] According to the above structure provided in this embodiment, the plate roller 201, the printing roller 202 and the anilox roller 203 are driven by the plate roller servo motor 301, the printing roller servo motor 302 and the anilox roller servo motor 303 respectively. The rotating sleeve 204 mounted on both ends of the plate roller 201 can be driven by the pressure regulating servo motor 304 connected to the rotating sleeve 204, thereby driving the plate roller 201 to move relative to the wallboard 100 along its own radial direction and adjust the printing pressure between the plate roller 202; on the other hand, it can be driven by the lateral regulating servo motor 305 connected to the sliding seat 306, thereby driving the plate roller 201 to move along its own axial direction and accurately align the plate with the printing roller 202. Therefore, a full servo flexographic printing unit provided in this embodiment can realize accurate control of each link in the printing process. Whether it is the movement of the plate roller 201 or the adjustment of the printing speed, it can be operated efficiently, stably and accurately through the servo system, which is far superior to the existing technology.

[0042] In another embodiment of the present application, please refer to Figures 1 to 5The driving assembly further includes a sliding seat 306 movably mounted on one of the rotating sleeves 204. A linear rail 101 slidably connected to the sliding seat 306 is provided on the wall panel 100, and the linear rail 101 is parallel to the moving path of the plate roller 201 along the radial direction. According to the above structure provided in this embodiment, when the pressure regulating servo motor 304 drives the plate roller 201 to move along its radial direction, the sliding seat 306 and the linear rail 101 can be slidably matched to provide better movement stability, which is conducive to further improving the adjustment accuracy of the full servo flexographic printing unit provided in this embodiment.

[0043] In another embodiment of the present application, please refer to Figures 1 to 5 The driving assembly also includes a motor seat 307, on which the plate roller servo motor 301 and the lateral adjustment servo motor 305 are both mounted; the power end of the lateral adjustment servo motor 305 is connected with a screw rod 308 parallel to the plate roller 201, and the screw rod 308 is threadedly connected to the sliding seat 306; the output shaft of the plate roller servo motor 301 is connected with an axial end of the plate roller 201 corresponding to the extension of the rotating sleeve 204. According to the above structure provided in this embodiment, when the lateral adjustment servo motor 305 drives the screw rod 308 to rotate, it can drive the motor seat 307 to move toward or away from the sliding seat 306, so that the plate roller servo motor 301 mounted on the motor seat 307 drives the plate roller 201 connected thereto to move along the axial direction of the plate roller 201 itself, and when the plate roller 201 moves axially, the rotating sleeve 204 can also stably slide axially in the sliding seat 306 to play a guiding role, so as to achieve a stable lateral adjustment effect of the plate roller 201 in this embodiment, with further adjustment accuracy.

[0044] In another embodiment of the present application, please refer to Figures 1 to 5 The motor seat 307 is provided with guide posts 309 which are parallel to the screw rod 308 and slide through the sliding seat 306. Two guide posts 309 are arranged at intervals and are distributed in a triangle with the rotating sleeve 204. According to the above structure provided in this embodiment, the guide posts 309 can be used to improve the movement stability of the motor seat 307 relative to the sliding seat 306 and maintain the same movement posture, and can also cooperate with the rotating sleeve 204 to form a more stable support for the motor seat 307, that is, the motor seat 307 is installed on the sliding seat 309 through the guide posts 309 and the rotating sleeve 204, and the movement of the motor seat 307 is guided by the guide posts 309 and the rotating sleeve 204, which is conducive to further improving the adjustment accuracy of the full-servo flexographic printing unit provided in this embodiment.

[0045] In another embodiment of the present application, please refer to Figures 1 to 5A first worm gear reducer 310 for reducing speed is connected between the power end of the lateral adjustment servo motor 305 and the lead screw 308. According to the above structure provided in this embodiment, the first worm gear reducer 310 disposed between the lateral adjustment servo motor 305 and the lead screw 308 can reduce the rotation speed of the adjustment lead screw 308, so that the speed of the motor seat 307 approaching or moving away from the sliding seat 306 is within the set requirements, which is conducive to further improving the adjustment accuracy of the full servo flexographic printing unit provided in this embodiment.

[0046] In another embodiment of the present application, please refer to Figures 1 to 5 , the output end of the pressure regulating servo motor 304 is connected to an eccentric shaft 311 parallel to the printing roller 201; the driving assembly also includes a pair of roller pillows 312 that can be opened and closed and used to support the rotating sleeve 204, one end of the roller pillow 312 is hinged on the wall panel 100, and the other end is overlapped on the eccentric shaft 311. According to the above structure provided in this embodiment, when the output end of the pressure regulating servo motor 304 drives the eccentric shaft 311 to rotate, the roller pillow 312 can be rotated around the hinged end with the wall panel 100, and then the rotating sleeve 204 clamped between the pair of roller pillows 312 can be driven to move radially along the printing roller 201, so as to achieve the technical effect of the printing roller 201 approaching or moving away from the printing roller 202 in the radial direction. It can be understood that since the two ends of the printing roller 201 in this embodiment need to move synchronously and a pair of roller pillows 312 are provided at each end, four pressure regulating servo motors 304 are provided in this embodiment to adjust the rotation of the four roller pillows 312 respectively, so as to achieve a more precise adjustment effect.

[0047] In another embodiment of the present application, please refer to Figures 1 to 5 , and refer to Figure 5 , a side ear 313 is protruded from one end of the roller pillow 312 away from the wall panel 100, and the driving assembly also includes an arc-shaped middle block 314 sandwiched between the side ear 313 and the wall panel 100; the rotating sleeve 204 abuts against the roller pillow 312 through the arc-shaped middle block 314. According to the above structure provided in this embodiment, since the arc-shaped middle block 314 can better adapt to the shape of the rotating sleeve 204 and the roller pillow 312, the transmission stability between the rotating sleeve 204 and the roller pillow 312 can be further improved, and the arc-shaped middle block 314 sandwiched between the side ear 313 and the wall panel 100 itself also has good movement stability, which is conducive to further improving the adjustment accuracy of the full-servo flexographic printing unit provided in this embodiment.

[0048] In another embodiment of the present application, please refer to Figures 1 to 5The drive assembly also includes a limit seat 315 installed on the wall panel 100, and the limit seat 315 forms a cavity 316 for clamping the roller pillow 312 between the limit seat 315 and the wall panel 100. The drive assembly also includes a limit bolt 317 threadedly connected to the limit seat 315 and capable of extending into the cavity 316, and a locking nut 318 threadedly connected to the limit bolt 317. According to the above structure provided in this embodiment, the limit bolt 317 threadedly connected to the limit seat 315 can penetrate into the cavity 316 formed on the limit seat 315 and limit the opening range of the roller pillow 312, and the locking nut 318 can be used to lock the relative position between the limit bolt 317 and the limit seat 315, which is conducive to further improving the adjustment accuracy of the full-servo flexographic printing unit provided in this embodiment.

[0049] In another embodiment of the present application, please refer to Figures 1 to 5 A second worm gear reducer 319 for reducing speed is connected between the power end of the pressure regulating servo motor 304 and the eccentric shaft 311. According to the above structure provided in this embodiment, the second worm gear reducer 319 arranged between the pressure regulating servo motor 304 and the eccentric shaft 311 can reduce the rotation speed of the eccentric shaft 311, thereby adjusting the speed at which the plate roller 201 approaches or moves away from the printing roller 202, which is conducive to further improving the adjustment accuracy of the full servo flexographic printing unit provided in this embodiment. At the same time, through the self-locking effect of the second worm gear reducer 319, the radial position of the plate roller 201 can be well maintained, that is, the stability of the printing pressure can be maintained.

[0050] In another embodiment of the present application, please refer to Figures 1 to 5 The arc-shaped middle block 314 is connected with a guide rail 320, and the wall panel 100 is provided with a guide groove 102 slidably connected to the guide rail 320; the guide rail 320 is arranged in parallel with the linear rail 101. According to the above structure provided in this embodiment, the circumferential freedom of the arc-shaped middle block 304 along its own axis is effectively limited by the sliding cooperation between the guide rail 320 and the guide groove 102, which is conducive to further improving the stability of the arc-shaped middle block 314 driving the plate roller 201 to move radially, thereby further improving the adjustment accuracy of the full-servo flexographic printing unit provided in this embodiment.

[0051] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A full servo flexographic printing unit, characterized in that: include: Wall Panel (100); A printing assembly, comprising a plate roller (201), a printing roller (202) and an anilox roller (203) arranged in parallel, and also comprising a rotating sleeve (204) rotatably connected to both ends of the plate roller (201); The driving assembly comprises a plate roller servo motor (301) which is transmission-connected to the plate roller (201) and used for driving the plate roller (201), a printing roller servo motor (302) which is transmission-connected to the printing roller (202) and used for driving the printing roller (202), and an anilox roller servo motor (303) which is transmission-connected to the anilox roller (203) and used for driving the anilox roller (203), and further comprises a rotating sleeve (204) which is transmission-connected to the rotating sleeve (204) and used for driving the rotating sleeve (204) to rotate relative to the plate roller (201) in the radial direction. A pressure regulating servo motor (304) for moving the wall panel (100) and a transverse adjustment servo motor (305) for driving the plate roller (201) to move along its own axial direction relative to the wall panel (100); the printing roller servo motor (302), the anilox roller servo motor (303) and the pressure regulating servo motor (304) are all fixedly mounted on the wall panel (100); the plate roller servo motor (301) and the transverse adjustment servo motor (305) are movably arranged relative to the wall panel (100).

2. The full servo flexographic printing unit according to claim 1, characterized in that: The driving assembly further comprises a sliding seat (306) movably mounted on one of the rotating sleeves (204); The wall panel (100) is provided with a linear rail (101) slidably connected to the sliding seat (306), and the linear rail (101) is parallel to the moving path of the plate roller (201) moving in the radial direction.

3. The full servo flexographic printing unit according to claim 2, characterized in that: The driving assembly further comprises a motor seat (307), and the plate roller servo motor (301) and the lateral adjustment servo motor (305) are both mounted on the motor seat (307); The power end of the lateral adjustment servo motor (305) is connected to a screw rod (308) parallel to the plate roller (201), and the screw rod (308) is threadedly connected to the sliding seat (306); The output shaft of the plate roller servo motor (301) is connected to an axial end of the plate roller (201) corresponding to the end extending out of the rotating sleeve (204).

4. The full servo flexographic printing unit according to claim 3, characterized in that: The motor seat (307) is provided with a guide column (309) which is parallel to the screw rod (308) and slides through the sliding seat (306); Two guide pillars (309) are arranged at intervals and are distributed in a triangular pattern with respect to the rotating sleeve (204).

5. The full servo flexographic printing unit according to claim 3, characterized in that: A first worm gear reducer (310) for reducing speed is transmission-connected between the power end of the lateral adjustment servo motor (305) and the lead screw (308).

6. The full servo flexographic printing unit according to claim 2, characterized in that: The output end of the pressure regulating servo motor (304) is connected to an eccentric shaft (311) parallel to the plate roller (201); The driving assembly further comprises a pair of roller pillows (312) which can be opened and closed and are used to support the rotating sleeve (204); one end of the roller pillow (312) is hinged on the wall panel (100), and the other end is overlapped on the eccentric shaft (311).

7. The full servo flexographic printing unit according to claim 6, characterized in that: A side ear (313) is protruded from one end of the roller pillow (312) away from the wall panel (100), and the driving assembly further comprises an arc-shaped middle block (314) sandwiched between the side ear (313) and the wall panel (100); The rotating sleeve (204) abuts against the roller pillow (312) via the arc-shaped middle block (314).

8. The full servo flexographic printing unit according to claim 6, characterized in that: The driving assembly further comprises a limit seat (315) mounted on the wall panel (100), the limit seat (315) forming a cavity (316) for clamping the roller pillow (312) between the limit seat (315) and the wall panel (100); The driving assembly further comprises a limiting bolt (317) threadedly connected to the limiting seat (315) and capable of extending into the cavity (316), and a locking nut (318) threadedly connected to the limiting bolt (317).

9. The full servo flexographic printing unit according to claim 6, characterized in that: A second worm gear reducer (319) for reducing speed is transmission-connected between the power end of the pressure regulating servo motor (304) and the eccentric shaft (311).

10. The full servo flexographic printing unit according to claim 7, characterized in that: The arc-shaped middle block (314) is connected to a guide rail (320), and the wall panel (100) is provided with a guide groove (102) slidably connected to the guide rail (320); The guide rail (320) is arranged parallel to the linear rail (101).

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