Transverse color register structure of flexo printing machine

Abstract

The utility model discloses a flexographic printing machine transverse color register structure which comprises a base, a lead screw nut is arranged on one side of the base, a lead screw is inserted in the middle of the lead screw nut, a first bearing seat is connected to the side, away from the base, of the lead screw in a sleeved mode, and the side, away from the lead screw, of the first bearing seat is fixedly connected with a color register motor installation seat. A color register motor is fixedly mounted on the color register motor mounting seat, the side, close to the base, of the first bearing seat is fixedly connected with the second bearing seat, a transmission shaft is inserted into the through groove, and the end, away from the second bearing seat, of the transmission shaft is movably connected with the base through a first needle bearing; the end, close to the second bearing seat, of the transmission shaft is movably connected with the base through a second needle bearing. Compared with a traditional color register structure, the color register structure has the advantages that the equipment cost is reduced, the color register structure is convenient to mount and good in transmission stability, and the practicability of the color register structure is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of horizontal color matching technology for printing presses, and in particular to a horizontal color matching structure for a flexographic printing press. Background Technology

[0002] During the operation of a printing press, color registration accuracy is a crucial performance indicator. Color registration consists of two parts: longitudinal registration along the length of the printing material and transverse registration along the width of the printing material. This structure is a new design developed specifically for the transverse registration part. Traditional transverse registration structures mainly use a lead screw to push the printing plate mounted on a linear guide to complete the transverse registration action along the width of the printing material. The existing transverse registration structures of flexographic printing presses are complex, resulting in a cumbersome overall installation process, difficulty in ensuring installation accuracy, and high-precision linear guides that are costly and require a large space, which is detrimental to the use of the printing press. Therefore, we propose a new transverse registration structure for flexographic printing presses. Utility Model Content

[0003] To address the aforementioned problems, this invention provides a transverse color registration structure for flexographic printing presses. This invention solves the problems of existing flexographic printing press transverse color registration structures, which are complex, involve cumbersome installation processes, are difficult to guarantee in terms of installation accuracy, and require high-precision linear guides that are expensive, require large spaces, and are detrimental to the use of the printing press.

[0004] This utility model discloses a horizontal color-matching structure for a flexographic printing machine, comprising a base, a lead screw nut on one side of the base, a lead screw inserted into the center of the lead screw nut, a first bearing seat sleeved on the side of the lead screw away from the base, the side of the first bearing seat away from the lead screw being fixedly connected to a color-matching motor mounting base, a color-matching motor being fixedly mounted on the color-matching motor mounting base, the side of the first bearing seat near the base being fixedly connected to a second bearing seat, a through groove opened on the side of the base away from the lead screw nut, a drive shaft inserted into the through groove, the end of the drive shaft away from the second bearing seat being movably connected to the base via a first needle roller bearing, the end of the drive shaft near the second bearing seat being movably connected to the base via a second needle roller bearing, and the side of the second bearing seat away from the base being fixedly connected to a printing plate motor mounting base.

[0005] In the above scheme, the lead screw and the first bearing housing are movably connected by a first deep groove ball bearing.

[0006] In the above scheme, a second deep groove ball bearing is provided on the side of the second bearing housing near the base, and an angular contact bearing is provided on the side of the second bearing housing away from the second deep groove ball bearing.

[0007] In the above scheme, the end of the drive shaft away from the second bearing seat is fixedly connected to the printing plate core shaft.

[0008] In the above scheme, the lead screw is fixedly connected to the limiting block on the side away from the first bearing seat.

[0009] In the above scheme, the base has four mounting holes arranged in a matrix.

[0010] The advantages and beneficial effects of this utility model are as follows: This utility model provides a horizontal color-matching structure for a flexographic printing machine. The color-matching motor drives the lead screw to rotate through a coupling. When the lead screw rotates, through the cooperation between the lead screw and the lead screw nut, the lead screw can reciprocate horizontally. Under the drive of the lead screw, the first bearing seat also moves accordingly. When the first bearing seat moves, it drives the second bearing seat to move. Through the transmission of the second bearing seat, the transmission shaft and the printing plate core shaft also move accordingly. The arrangement of the first and second needle roller bearings ensures that the transmission shaft can rotate stably. Compared with the traditional color-matching structure, this color-matching structure eliminates the linear guide rail, reduces equipment costs, facilitates installation, has good transmission stability, and effectively improves the practicality of the color-matching structure. Attached Figure Description

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a partial cross-sectional view of the present invention;

[0014] Figure 3 This is a partial cross-sectional top view of the present invention.

[0015] In the diagram: 1. Base; 2. Lead screw nut; 3. Lead screw; 4. First bearing housing; 5. Color matching motor mounting base; 6. Color matching motor; 7. First deep groove ball bearing; 8. Second bearing housing; 9. Through groove; 10. Drive shaft; 11. First needle roller bearing; 12. Second needle roller bearing; 13. Second deep groove ball bearing; 14. Angular contact bearing; 15. Printing plate mandrel; 16. Printing plate motor mounting base; 17. Limiting block; 18. Mounting hole. Detailed Implementation

[0016] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0017] like Figure 1-3 As shown, this utility model is a horizontal color-matching structure for a flexographic printing machine, including a base 1. A lead screw nut 2 is provided on one side of the base 1, and a lead screw 3 is inserted into the middle of the lead screw nut 2. The lead screw 3 and the lead screw nut 2 are threaded together. A first bearing seat 4 is sleeved on the side of the lead screw 3 away from the base 1. The side of the first bearing seat 4 away from the lead screw 3 is fixedly connected to a color-matching motor mounting base 5. A coupling is provided inside the color-matching motor mounting base 5. A color-matching motor 6 is fixedly mounted on the color-matching motor mounting base 5. When the color-matching motor 6 is working, it drives the lead screw 3 to rotate through the coupling. When the lead screw 3 rotates, it can reciprocate horizontally through the cooperation between the lead screw 3 and the lead screw nut 2. The side of the first bearing seat 4 closest to the base 1 is connected to a second bearing seat... 8. Fixed connection: A through groove 9 is provided on the side of the base 1 away from the lead screw nut 2. A drive shaft 10 is inserted into the through groove 9. The end of the drive shaft 10 away from the second bearing seat 8 is movably connected to the base 1 through a first needle roller bearing 11. The end of the drive shaft 10 near the second bearing seat 8 is movably connected to the base 1 through a second needle roller bearing 12. The arrangement of the first needle roller bearing 11 and the second needle roller bearing 12 allows the drive shaft 10 to rotate stably. When the first bearing seat 4 moves, the first bearing seat 4 drives the second bearing seat 8 to move. The drive shaft 10 also moves accordingly through the transmission of the second bearing seat 8. The side of the second bearing seat 8 away from the base 1 is fixedly connected to the printing plate motor mounting base 16. The printing plate motor can be fixedly mounted on the printing plate motor mounting base 16.

[0018] The lead screw 3 and the first bearing seat 4 are movably connected by a first deep groove ball bearing 7. With the first deep groove ball bearing 7, the lead screw 3 can rotate stably inside the first bearing seat 4.

[0019] The second bearing housing 8 is provided with a second deep groove ball bearing 13 on the side near the base 1, and an angular contact bearing 14 is provided on the side of the second bearing housing 8 away from the second deep groove ball bearing 13. The arrangement of the second deep groove ball bearing 13 and the angular contact bearing 14 allows the transmission shaft 10 to rotate stably inside the second bearing housing 8.

[0020] The end of the drive shaft 10 away from the second bearing seat 8 is fixedly connected to the printing plate core shaft 15.

[0021] The lead screw 3 is fixedly connected to the limiting block 17 on the side away from the first bearing seat 4, and the limiting block 17 can limit the horizontal movement of the lead screw 3.

[0022] The base 1 has four mounting holes 18 arranged in a matrix, through which the color-blocking structure can be fixedly installed.

[0023] Specifically, in this utility model, when the color-matching motor 6 is working, the color-matching motor 6 drives the lead screw 3 to rotate through the coupling. When the lead screw 3 rotates, through the mutual cooperation between the lead screw 3 and the lead screw nut 2, the lead screw 3 can move back and forth in the horizontal direction. Under the drive of the lead screw 3, the first bearing seat 4 also moves. When the first bearing seat 4 moves, the first bearing seat 4 drives the second bearing seat 8 to move. Through the transmission of the second bearing seat 8, the transmission shaft 10 and the printing plate core shaft 15 also move. Through the arrangement of the first needle roller bearing 11 and the second needle roller bearing 12, the transmission shaft 10 can rotate stably. The arrangement of the second deep groove ball bearing 13 and the angular contact bearing 14 allows the transmission shaft 10 to rotate stably inside the second bearing seat 8.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A transverse color-matching structure for a flexographic printing press, comprising a base (1), characterized in that, The base (1) has a lead screw nut (2) on one side, and a lead screw (3) is inserted into the middle of the lead screw nut (2). A first bearing seat (4) is sleeved on the side of the lead screw (3) away from the base (1). The side of the first bearing seat (4) away from the lead screw (3) is fixedly connected to the color matching motor mounting base (5). A color matching motor (6) is fixedly installed on the color matching motor mounting base (5). The side of the first bearing seat (4) near the base (1) is fixedly connected to a second bearing seat (8). (1) A through groove (9) is provided on the side away from the lead screw nut (2). A drive shaft (10) is inserted into the through groove (9). The end of the drive shaft (10) away from the second bearing seat (8) is movably connected to the base (1) through the first needle roller bearing (11). The end of the drive shaft (10) close to the second bearing seat (8) is movably connected to the base (1) through the second needle roller bearing (12). The side of the second bearing seat (8) away from the base (1) is fixedly connected to the printing plate motor mounting seat (16).

2. The lateral color matching structure of a flexographic printing press according to claim 1, characterized in that, The lead screw (3) and the first bearing housing (4) are movably connected by a first deep groove ball bearing (7).

3. The lateral color matching structure of a flexographic printing press according to claim 1, characterized in that, The second bearing housing (8) is provided with a second deep groove ball bearing (13) on the side near the base (1), and an angular contact bearing (14) is provided on the side of the second bearing housing (8) away from the second deep groove ball bearing (13).

4. The lateral color matching structure of a flexographic printing press according to claim 1, characterized in that, The end of the drive shaft (10) away from the second bearing seat (8) is fixedly connected to the printing plate core shaft (15).

5. The lateral color matching structure of a flexographic printing press according to claim 1, characterized in that, The lead screw (3) is fixedly connected to the limiting block (17) on the side away from the first bearing seat (4).

6. The lateral color matching structure of a flexographic printing press according to claim 1, characterized in that, The base (1) has four mounting holes (18) arranged in a matrix.

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