Flexographic printing equipment capable of adjusting printing spacing

Abstract

The utility model relates to flexographic printing equipment capable of adjusting printing spacing. The flexographic printing device structurally comprises a flexographic printing assembly, a pressure roller body, a printing plate roller body, a printing body and a replacement plate. A pressure roller body is rotationally installed on the flexographic printing assembly, a printing plate roller body rotationally connected with the flexographic printing assembly is arranged on one side of the pressure roller body, a printing body is arranged between the pressure roller body and the printing plate roller body, and replacement plates are installed on the surface of the printing plate roller body at equal intervals. The flexographic printing plate is centrally installed on the surface of the replacement plates, the replacement plates are close to the printing plate roller body, the positioning blocks enter the positioning grooves, the four replacement plates are installed on the surface of the printing plate roller body at equal intervals, when the printing distance needs to be increased, two replacement plates are taken down, the remaining replacement plates are symmetrically arranged, and when the printing distance needs to be reduced, two replacement plates are added. Six replacement plates are arranged at equal intervals, and the printing distance can be adjusted according to needs.

Description

Technical Field

[0001] This utility model relates to the field of flexographic printing technology, and in particular to a flexographic printing device with adjustable printing spacing. Background Technology

[0002] Flexographic printing is a letterpress printing process that uses a flexible printing plate and an anilox roller to transfer ink. It uses a flexible resin plate as the printing plate, which is soft and elastic and can adapt to a variety of printing materials, such as paper, plastic film, and metal foil. During printing, the anilox roller evenly coats the image area of ​​the printing plate with ink and then transfers it to the surface of the substrate.

[0003] When using flexographic printing equipment for graphic printing, the pressure roller squeezes the substrate, making it come into close contact with the printing plate roller, thus accurately printing the image from the printing plate roller onto the substrate surface. Adjusting the printing gap is crucial for ensuring print quality; a suitable gap guarantees uniform ink transfer and clear, complete images. However, existing flexographic printing equipment has significant shortcomings in adjusting the printing gap. The main adjustment method is to increase or decrease the circumference of the printing plate roller. In practice, this process is fraught with difficulties. Adjusting the circumference of the printing plate roller often requires disassembling the roller and then reprocessing or replacing parts of specific dimensions. This not only requires specialized skills and tools but also consumes a significant amount of time and manpower. Furthermore, frequent disassembly and replacement of the printing plate roller can affect the stability and accuracy of the equipment, increasing the risk of equipment failure.

[0004] Therefore, in response to the above problems, a new flexographic printing device with adjustable printing spacing is proposed. Utility Model Content

[0005] To overcome the problems existing in related technologies, this utility model provides an adjustable printing spacing flexographic printing equipment that can utilize twelve arc plates mounted on the printing plate roller, forming a ring shape. The flexographic printing plate is placed in the middle of one or more assembled arc plates. The printing spacing is reduced by increasing the number of flexographic printing plates and increased by decreasing the number of flexographic printing plates.

[0006] To achieve the above objectives, the first aspect of this utility model provides a flexographic printing apparatus with adjustable printing spacing, comprising:

[0007] Flexographic printing components, pressure roller body, printing plate roller body, printing substrate body and replacement plate;

[0008] The flexographic printing assembly has a pressure roller body rotatably mounted on it. On one side of the pressure roller body, there is a printing plate roller body rotatably connected to the flexographic printing assembly. A printing substrate is provided between the pressure roller body and the printing plate roller body. Replacement plates are installed at equal intervals on the surface of the printing plate roller body.

[0009] Furthermore, the printing plate roller body is provided with equidistant positioning grooves, and the replacement plate is fixedly installed with positioning blocks that pass through the positioning grooves.

[0010] Furthermore, a first magnetic strip is fixedly connected to the inner wall of the positioning groove, and a second magnetic strip is fixedly connected to the positioning block, with the first magnetic strip and the second magnetic strip attracting each other.

[0011] Furthermore, a first synchronization disk is slidably installed inside the printing plate roller body, and a second synchronization disk is provided on one side of the first synchronization disk and slidably connected to the printing plate roller body. A guide frame that is slidably connected to the printing plate roller body is fixedly installed on the first synchronization disk, and a guide frame is fixedly connected to the second synchronization disk. Limiting holes are opened on both sides of the positioning block.

[0012] Furthermore, the first synchronous disk is equipped with limit blocks that pass through the limit holes at equal intervals, and the second synchronous disk is equipped with limit blocks at equal intervals.

[0013] Furthermore, springs connected to the inner wall of the printing roller body are symmetrically installed on the first synchronization disk, and springs connected to the inner wall of the printing roller body are symmetrically installed on the second synchronization disk.

[0014] Furthermore, a first rack that passes through the printing plate roller body is installed on the first synchronization disk, and a second rack that passes through the printing plate roller body is installed on the second synchronization disk. A transmission gear is rotatably connected inside the printing plate roller body. The transmission gear meshes with the first rack and the transmission gear meshes with the second rack.

[0015] The technical solution provided by this utility model can include the following beneficial effects:

[0016] In this example, by installing replacement plates, positioning slots, and positioning blocks, the flexographic printing plate is centered on the surface of the replacement plate, the replacement plate is placed close to the main body of the printing plate roller, the positioning block is inserted into the positioning slot, and four replacement plates are installed equidistantly on the surface of the main body of the printing plate roller. When it is necessary to increase the printing spacing, two replacement plates are removed and the remaining replacement plates are symmetrically arranged. When it is necessary to decrease the printing spacing, two replacement plates are added, and six replacement plates are arranged equidistantly, so that the printing spacing can be adjusted as needed.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0018] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0019] Figure 1 This is a schematic diagram of the overall structure from one angle shown in one embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure from another angle, as shown in an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the main structure of the printing plate roller shown in an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the limiting block structure shown in an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the transmission gear structure shown in an embodiment of the present invention.

[0024] The correspondence between the labels and component names in the attached figures is as follows:

[0025] 1. Flexographic printing assembly; 2. Pressure roller body; 3. Plate roller body; 4. Printing substrate body; 5. Replacement plate; 6. Positioning groove; 7. Positioning block; 8. First magnetic strip; 9. Second magnetic strip; 10. First synchronous disc; 11. Second synchronous disc; 12. Guide frame; 13. Limiting hole; 14. Limiting block; 15. First rack; 16. Second rack; 17. Transmission gear. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. The preferred embodiments of this utility model will now be described in more detail with reference to the accompanying drawings. Although the preferred embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this utility model more thorough and complete, and to fully convey the scope of this utility model to those skilled in the art.

[0027] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0028] It should be understood that although the terms "first," "second," "third," etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] Designing flexographic printing equipment that allows for easy adjustment of printing spacing is currently the primary technical problem that technicians need to solve.

[0030] To address the aforementioned problems, this utility model provides an adjustable printing spacing flexographic printing device. This structure utilizes twelve arc plates mounted on the printing plate roller, forming a circular ring shape. The flexographic printing plate is placed in the middle of one or more assembled arc plates. The printing spacing is reduced by increasing the number of flexographic printing plates and increased by decreasing the number of flexographic printing plates.

[0031] The technical solutions of the embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0032] Figure 1 This is a schematic diagram of the overall structure from one angle shown in one embodiment of this utility model; Figure 2 This is a schematic diagram of the overall structure from another angle, as shown in an embodiment of the present invention; Figure 3 This is a schematic diagram of the main structure of the printing plate roller shown in an embodiment of the present invention; Figure 4 This is a schematic diagram of the limiting block structure shown in an embodiment of the present invention; Figure 5 This is a schematic diagram of the transmission gear structure shown in an embodiment of the present invention.

[0033] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The adjustable printing spacing flexographic printing equipment specifically includes:

[0034] Flexographic printing components 1, pressure roller body 2, printing plate roller body 3, printing substrate body 4, and replacement plate 5;

[0035] A pressure roller body 2 is rotatably mounted on the flexographic printing assembly 1. A printing plate roller body 3 is provided on one side of the pressure roller body 2 and is rotatably connected to the flexographic printing assembly 1. A printing support body 4 is provided between the pressure roller body 2 and the printing plate roller body 3. Replacement plates 5 are equidistantly mounted on the surface of the printing plate roller body 3.

[0036] Specifically, the printing plate roller body 3 is provided with positioning grooves 6 at equal intervals, and the replacement plate 5 is fixedly installed with positioning blocks 7 that pass through the positioning grooves 6.

[0037] Specifically, a first magnetic stripe 8 is fixedly connected to the inner wall of the positioning groove 6, and a second magnetic stripe 9 is fixedly connected to the positioning block 7. The first magnetic stripe 8 and the second magnetic stripe 9 attract each other.

[0038] Specifically, a first synchronization disk 10 is slidably installed inside the printing plate roller body 3. A second synchronization disk 11 is provided on one side of the first synchronization disk 10 and is slidably connected to the printing plate roller body 3. A guide frame 12 that is slidably connected to the printing plate roller body 3 is fixedly installed on the first synchronization disk 10. A guide frame 12 is fixedly connected to the second synchronization disk 11. Limiting holes 13 are opened on both sides of the positioning block 7.

[0039] Specifically, the first synchronization disk 10 is provided with a limiting block 14 that passes through the limiting hole 13 at equal intervals, and the second synchronization disk 11 is provided with a limiting block 14 at equal intervals.

[0040] Specifically, springs connected to the inner wall of the printing roller body 3 are symmetrically installed on the first synchronization disk 10, and springs connected to the inner wall of the printing roller body 3 are symmetrically installed on the second synchronization disk 11.

[0041] Specifically, a first rack 15 that passes through the printing plate roller body 3 is installed on the first synchronization disk 10, and a second rack 16 that passes through the printing plate roller body 3 is installed on the second synchronization disk 11. A transmission gear 17 is rotatably connected inside the printing plate roller body 3. The transmission gear 17 meshes with the first rack 15 and the second rack 16.

[0042] In this embodiment, how to use a flexographic printing plate to adjust the printing spacing, combined with Figure 1 As for Figure 3The specific implementation method is as follows: The flexographic printing plate is installed in the center on the surface of the replacement plate 5. The flexographic printing assembly 1 is started. The motor on the flexographic printing assembly 1 drives the ink roller and the anilox roller to rotate. Another motor drives the pressure roller body 2 and the printing plate roller body 3 to rotate, printing the image onto the surface of the printing body 4. The replacement plate 5 is placed close to the printing plate roller body 3. The positioning block 7 enters the positioning groove 6. The four replacement plates 5 are installed equidistantly on the surface of the printing plate roller body 3. When it is necessary to increase the printing spacing, two replacement plates 5 are removed and the remaining replacement plates 5 are symmetrically arranged. When it is necessary to decrease the printing spacing, two replacement plates 5 are added. Six replacement plates 5 are arranged equidistantly, which can adjust the printing spacing as needed.

[0043] For example: how to securely connect the replacement plate 5 to the printing plate roller body 3, and combine... Figure 3 and Figure 4 The specific implementation method is as follows: the positioning block 7 enters the positioning groove 6, pulls the first synchronous disk 10, and drives the second synchronous disk 11 away from the replacement plate 5 at the same time. The first magnetic strip 8 and the second magnetic strip 9 attract each other, and the replacement plate 5 is attached to the surface of the printing plate roller body 3. The first synchronous disk 10 is released, and the second synchronous disk 11 moves closer to the replacement plate 5. The limiting block 14 enters the limiting hole 13, and the positioning block 7 is fixedly installed in the positioning groove 6, so that the replacement plate 5 is firmly connected to the printing plate roller body 3.

[0044] In this embodiment, the method of removing and replacing the printing plate roller body 3 is described in conjunction with... Figure 5 The specific implementation method is as follows: pull the first synchronous disk 10 away from the replacement plate 5, drive the guide frame 12 to move out of both sides of the printing plate roller body 3, drive the transmission gear 17 to drive the first rack 15 and the second rack 16 to slide in opposite directions, the first synchronous disk 10 and the second synchronous disk 11 simultaneously squeeze the spring, the limit block 14 moves out of the limit hole 13, so that the positioning block 7 can move out of the positioning groove 6, and the replacement plate 5 can be removed.

[0045] The present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to the present invention. Furthermore, it is understood that the steps in the method of the present invention embodiments can be adjusted, combined, and deleted according to actual needs, and the structure in the device of the present invention embodiments can be combined, divided, and deleted according to actual needs.

[0046] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An adjustable print pitch flexographic printing apparatus, characterized by, include: Flexographic printing assembly (1), pressure roller body (2), printing plate roller body (3), printing substrate body (4) and replacement plate (5); The flexographic printing assembly (1) is rotatably mounted with a pressure roller body (2), and a printing plate roller body (3) is provided on one side of the pressure roller body (2) and rotatably connected to the flexographic printing assembly (1). A printing support body (4) is provided between the pressure roller body (2) and the printing plate roller body (3), and replacement plates (5) are equidistantly mounted on the surface of the printing plate roller body (3).

2. The flexographic printing equipment with adjustable printing spacing according to claim 1, characterized in that: The printing roller body (3) is provided with positioning grooves (6) at equal intervals, and the replacement plate (5) is fixedly installed with positioning blocks (7) that pass through the positioning grooves (6).

3. The flexographic printing equipment with adjustable printing spacing according to claim 2, characterized in that: The inner wall of the positioning groove (6) is fixedly connected to a first magnetic strip (8), and the positioning block (7) is fixedly connected to a second magnetic strip (9). The first magnetic strip (8) and the second magnetic strip (9) attract each other.

4. The flexographic printing equipment with adjustable printing spacing according to claim 3, characterized in that: The printing plate roller body (3) is slidably installed with a first synchronization disk (10). A second synchronization disk (11) is provided on one side of the first synchronization disk (10) and is slidably connected to the printing plate roller body (3). A guide frame (12) is fixedly installed on the first synchronization disk (10) and is slidably connected to the printing plate roller body (3). A guide frame (12) is fixedly connected on the second synchronization disk (11). Limiting holes (13) are opened on both sides of the positioning block (7).

5. The flexographic printing equipment with adjustable printing spacing according to claim 4, characterized in that: The first synchronization disk (10) is equipped with a limiting block (14) that passes through the limiting hole (13) at equal intervals, and the second synchronization disk (11) is equipped with a limiting block (14) at equal intervals.

6. The flexographic printing equipment with adjustable printing spacing according to claim 4, characterized in that: Springs connected to the inner wall of the printing roller body (3) are symmetrically installed on the first synchronization disk (10), and springs connected to the inner wall of the printing roller body (3) are symmetrically installed on the second synchronization disk (11).

7. The flexographic printing equipment with adjustable printing spacing according to claim 6, characterized in that: The first synchronization disk (10) is equipped with a first rack (15) that passes through the printing roller body (3), and the second synchronization disk (11) is equipped with a second rack (16) that passes through the printing roller body (3). The printing roller body (3) is rotatably connected with a transmission gear (17). The transmission gear (17) meshes with the first rack (15) and the transmission gear (17) meshes with the second rack (16).

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