Anilox roll positioning and locking machine for a flexographic printing press

Abstract

The utility model discloses a kind of anilox roll positioning and locking machine of flexographic printing machine, comprising: anilox roll, bearing seat, driven dial, drive shaft and anilox roll seat, two bearing seats are set in the two ends of anilox roll, driven dial is set in one bearing seat, driven dial is connected with anilox roll, one end of drive shaft is inserted into one bearing seat, drive shaft is connected with driven dial, the vicinity of each bearing seat is provided with an anilox roll seat, bearing seat and corresponding anilox roll seat are matched to form bearing mounting groove, bearing is provided in bearing mounting groove, the two ends of anilox roll are set in two bearings. Through the application of the utility model, anilox roll positioning and locking machine of flexographic printing machine are presented, which can effectively limit the movement of anilox roll in axial and radial direction, ensure that anilox roll maintains accurate position during operation, and it can also realize reliable locking of anilox roll, ensure that anilox roll does not occur position deviation due to vibration during printing process.

Description

Technical Field

[0001] This utility model relates to the field of printing press technology, and in particular to an anilox roller positioning and locking machine for a flexographic printing press. Background Technology

[0002] In flexographic printing, the precise positioning and reliable locking of the anilox roller are crucial, directly affecting the printing quality and efficiency of the printing press. However, existing anilox roller positioning and locking devices have several shortcomings. First, accurate positioning of the anilox roller faces challenges. Traditional anilox roller fixing relies heavily on mechanical tension clamps for assembly and disassembly. However, in actual printing, this method struggles to ensure precise relative positioning between the anilox roller, printing plate, and impression roller. Due to the complex mechanical forces involved in printing, the anilox roller is prone to slight displacement during operation. These slight displacements significantly affect ink transfer, leading to uneven ink distribution and inconsistent ink density in the printed pattern. Furthermore, misalignment of the anilox roller can cause misregistration, meaning multiple printed colors cannot be precisely aligned, severely impacting print quality. Second, the locking reliability of existing anilox roller installation methods is insufficient. Traditional anilox roller locking methods rely solely on simple bolts. However, during high-speed printing, the entire printing press is in a state of high-frequency vibration. This simple bolt locking method cannot withstand continuous vibration and impact. With the continuous action of vibration, the bolts are prone to loosening, which in turn causes the anilox roller to shift in position. Utility Model Content

[0003] In view of this, in order to solve the above problems, the purpose of this utility model is to provide an anilox roller positioning and locking machine for a flexographic printing press, comprising:

[0004] Anilox roller;

[0005] Bearing housings, two bearing housings are disposed at both ends of the anilox roller, and a first semi-circular groove is provided on the outer wall of each bearing housing;

[0006] A driven dial is disposed in one of the bearing seats and is connected to the anilox roller;

[0007] A drive shaft, one end of which extends into one of the bearing housings, and the drive shaft is connected to the driven dial;

[0008] An anilox roller holder is provided near each of the bearing seats. A second semi-circular groove is provided on one side of the anilox roller holder. The first semi-circular groove and the second semi-circular groove cooperate to form a bearing mounting groove. A bearing is provided in the bearing mounting groove. The two ends of the anilox roller are located in the two bearings.

[0009] In another preferred embodiment, the lower end of the anilox roller holder is provided with a rotating hole, and an external rotating shaft passes through the rotating hole and is rotatably connected to the anilox roller holder.

[0010] In another preferred embodiment, a first limiting groove is provided on the outer limiting plate. The first limiting groove is arc-shaped, and a pin is slidably disposed in the first limiting groove. The anilox roller seat is connected to the pin.

[0011] In another preferred embodiment, the device further includes a cylinder disposed on one side of the anilox roller seat, the output end of the cylinder being provided with a limit slider, one side of the limit slider being inclined, and one side of the limit slider being operably abutting against the pin.

[0012] In another preferred embodiment, it further includes a scraper assembly, wherein a scraper groove is provided on the other side of each of the anilox roller seats, and the scraper assembly is disposed between the two scraper grooves.

[0013] In another preferred embodiment, it further includes a spring, one end of which is connected to the inner wall of the scraper groove, and the other end of which abuts against a protrusion on the side of the scraper assembly.

[0014] In another preferred embodiment, the driven dial has a connecting hole, and one end of the drive shaft has a pin, which is disposed in the connecting hole.

[0015] In another preferred embodiment, a second limiting groove is provided in the middle of the driven dial, and the two ends of the anilox roller have limiting shafts, which are inserted into the second limiting groove.

[0016] The present invention, by adopting the above-mentioned technical solution, has the following positive effects compared with the prior art: Through the application of the present invention, an anilox roller positioning and locking machine for a flexographic printing press is proposed. It can achieve precise positioning of the anilox roller through bearings and driven dials, effectively limiting the axial and radial movement of the anilox roller. This solves the problem that traditional devices cannot guarantee the relative positional accuracy between the anilox roller and the printing plate and impression roller. It can achieve reliable locking of the anilox roller through the limiting slider. Compared with the traditional simple bolt locking structure, it can better resist the vibration during high-speed printing and ensure that the anilox roller will not shift its position due to vibration during the printing process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the anilox roller positioning and locking mechanism for a flexographic printing press according to the present invention.

[0018] Figure 2This is a schematic diagram of the structure of an anilox roller seat for a flexographic printing press positioning and locking machine according to the present invention.

[0019] Figure 3 This is a diagram illustrating the usage state of the anilox roller positioning and locking machine for a flexographic printing press according to this utility model.

[0020] Figure 4 This is a schematic diagram of the driven dial of the anilox roller positioning and locking machine of a flexographic printing press according to the present invention.

[0021] In the attached image:

[0022] 1. Anilox roller; 2. Bearing housing; 3. Driven dial; 4. Drive shaft; 5. Anilox roller housing; 6. Bearing; 7. Rotating shaft; 8. First limiting groove; 9. Pin; 10. Cylinder; 11. Limiting slider; 12. Scraper assembly; 13. Spring; 100. Limiting shaft; 31. Connecting hole; 32. Second limiting groove; 41. Ejector pin; 51. Second semi-circular groove. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane".

[0026] like Figure 1-4 The diagram illustrates a preferred embodiment of an anilox roller positioning and locking mechanism for a flexographic printing press, comprising:

[0027] Anilox roller 1;

[0028] Bearing seats 2, two bearing seats 2 are set at both ends of the anilox roller 1, and a first semi-circular groove is opened on the outer wall of both bearing seats 2;

[0029] Driven dial 3 is disposed in one of the bearing seats 2 and is connected to the anilox roller 1;

[0030] Drive shaft 4, one end of drive shaft 4 extends into one of the bearing housings 2, and drive shaft 4 is connected to driven dial 3;

[0031] An anilox roller seat 5 is provided near each bearing seat 2. A second semi-circular groove 51 is provided on one side of the anilox roller seat 5. The first semi-circular groove and the second semi-circular groove 51 cooperate to form a bearing mounting groove. A bearing 6 is provided in the bearing mounting groove. The two ends of the anilox roller 1 are located in the two bearings 6.

[0032] Furthermore, as a preferred embodiment, the lower end of the anilox roller holder 5 is provided with a rotating hole, and the external rotating shaft 7 passes through the rotating hole and is rotatably connected to the anilox roller holder 5.

[0033] Furthermore, as a preferred embodiment, a first limiting groove 8 is provided on the external limiting plate. The first limiting groove 8 is arc-shaped, and a pin 9 is slidably provided in the first limiting groove 8. The anilox roller seat 5 is connected to the pin 9.

[0034] Furthermore, as a preferred embodiment, it also includes: a cylinder 10, which is disposed on one side of the anilox roller holder 5. A limiting slider 11 is provided at the output end of the cylinder 10. One side of the limiting slider 11 is inclined and operably abuts against the pin 9. Furthermore, the inclined side of the limiting slider 11 can lock the pin 9 on the anilox roller holder 5, preventing it from sliding in the opposite direction, thereby achieving a locking function for the anilox roller 1 and ensuring the stability of the anilox roller 1 during the printing process.

[0035] Furthermore, as a preferred embodiment, it also includes: a scraper assembly 12, wherein a scraper groove is respectively opened on the other side of each anilox roller seat 5, and the scraper assembly 12 is disposed between the two scraper grooves.

[0036] Furthermore, as a preferred embodiment, it also includes a spring 13, one end of which is connected to the inner wall of the doctor blade groove, and the other end of which abuts against a protrusion on the side of the doctor blade assembly 12. Furthermore, the spring 13 can maintain appropriate pressure between the doctor blade assembly 12 and the anilox roller 1, thereby facilitating good ink removal. When the doctor blade assembly 12 needs to be removed from the anilox roller seat 5, the spring 13 can also provide a spring force to disengage the doctor blade assembly 12 from the anilox roller seat 5, facilitating the disassembly of the doctor blade assembly 12.

[0037] Furthermore, in a preferred embodiment, the driven dial 3 has a connecting hole 31, and one end of the drive shaft 4 has a pin 41, which is fixedly disposed in the connecting hole 31. Further, when the drive shaft 4 rotates, it can drive the pin 41 to rotate, which in turn drives the driven dial 3 to rotate, and the rotation of the driven dial 3 can drive the anilox roller 1 to rotate, thereby realizing the power transmission from the drive shaft 4 to the anilox roller 1.

[0038] Furthermore, in a preferred embodiment, a second limiting groove 32 is provided in the middle of the driven dial 3, and the two ends of the anilox roller 1 have limiting shafts 100, which are inserted into the second limiting groove 32. Further, the limiting shafts 100 are fixedly connected to the inner wall of the limiting groove 32.

[0039] The working principle of this utility model is as follows: In use, the anilox roller seat 5 is first rotated around the rotating shaft 7. During the rotation of the anilox roller seat 5, the pin 9 will move from one side of the first limiting groove 8 to the other side. When the anilox roller seat 5 rotates to the other side of the first limiting groove 8, see... Figure 3 As shown, at this time, the first semi-circular groove and the second semi-circular groove 51 cooperate to form a bearing mounting groove. Then, the cylinder 10 is activated, which pushes the limiting slider 11 to move upward. The inclined side of the limiting slider 10 will lock the pin 9 on the anilox roller seat 5, preventing the pin 9 from sliding to the side of the first limiting groove 8, thereby achieving the locking function of the anilox roller seat 5. This ensures that the anilox roller 1 will not shift its position due to the offset or shaking of the anilox roller seat 5 during the printing process. Then, the bearing 6 is installed in the bearing mounting groove formed by the bearing seat 2 and the anilox roller seat 5. Finally, both ends of the anilox roller 1 are placed in the bearing 6 to achieve the initial positioning of the anilox roller 1. After positioning and support, the pin 41 of the drive shaft 4 is inserted into the connecting hole 31 of the driven dial 3, and the limiting shafts 100 at both ends of the anilox roller 1 are inserted into the second limiting groove 32 of the driven dial 3. This allows the drive shaft 4 to provide rotational power to the anilox roller 1, and the anilox roller 1 will not move axially. During printing, the drive shaft 4 can drive the driven dial 3 and the anilox roller 1 to rotate. During the rotation of the anilox roller 1, the doctor blade assembly 12 can maintain appropriate pressure with the surface of the anilox roller 1 under the elastic force of the spring 13, scraping off excess ink from the surface of the anilox roller 1, ensuring that the ink is evenly transferred to the printing plate, and achieving high-quality flexographic printing.

[0040] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning and locking machine for anilox rollers in a flexographic printing press, characterized in that, include: Anilox roller; Bearing housings, two bearing housings are disposed at both ends of the anilox roller, and a first semi-circular groove is provided on the outer wall of each bearing housing; A driven dial, wherein the driven dial is disposed in one of the bearing seats and is connected to the anilox roller; A drive shaft, one end of which extends into one of the bearing housings, and the drive shaft is connected to the driven dial; An anilox roller holder is provided near each of the bearing seats. A second semi-circular groove is provided on one side of the anilox roller holder. The first semi-circular groove and the second semi-circular groove cooperate to form a bearing mounting groove. A bearing is provided in the bearing mounting groove. The two ends of the anilox roller are located in the two bearings.

2. The anilox roller positioning and locking machine for a flexographic printing press according to claim 1, characterized in that, The lower end of the anilox roller holder is provided with a rotating hole, and an external rotating shaft passes through the rotating hole and is rotatably connected to the anilox roller holder.

3. The anilox roller positioning and locking machine for a flexographic printing press according to claim 1, characterized in that, The outer limiting plate has a first limiting groove, which is arc-shaped. A pin is slidably disposed in the first limiting groove, and the anilox roller seat is connected to the pin.

4. The anilox roller positioning and locking machine for a flexographic printing press according to claim 3, characterized in that, Also includes: A cylinder is disposed on one side of the anilox roller seat. A limit slider is provided at the output end of the cylinder. One side of the limit slider is inclined and can be operably abutted against the pin.

5. The anilox roller positioning and locking machine for a flexographic printing press according to claim 1, characterized in that, Also includes: The scraper assembly has a scraper groove on the other side of each of the anilox roller seats, and the scraper assembly is located between the two scraper grooves.

6. The anilox roller positioning and locking machine for a flexographic printing press according to claim 5, characterized in that, Also includes: A spring, one end of which is connected to the inner wall of the scraper groove, and the other end of which abuts against a protrusion on the side of the scraper assembly.

7. The anilox roller positioning and locking machine for a flexographic printing press according to claim 1, characterized in that, The driven dial has a connecting hole, and one end of the drive shaft has a pin, which is disposed in the connecting hole.

8. The anilox roller positioning and locking machine for a flexographic printing press according to claim 1, characterized in that, The driven dial has a second limiting groove in the middle, and the anilox roller has limiting shafts at both ends, which are inserted into the second limiting groove.

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