A screen printing plate holder for flexographic printing of gift boxes

Abstract

This utility model discloses a screen printing plate holder for flexographic printing of packaging gift boxes, relating to the field of flexographic printing technology. It includes a mounting frame, with a printing plate roller horizontally mounted and fixed at the front end of the frame. The printing plate roller has raised patterns. A right mounting plate is rotatably connected to the rear end of a right mounting plate on the outer right side of the mounting frame, and a left mounting plate is rotatably connected to the rear end of a left mounting plate on the outer left side of the mounting frame. A transmission component is located at the front end of the right mounting plate, and a separation component is located at the front end of the left mounting plate. A connecting component is located between the right and left mounting plates. This utility model, through the cooperation of the transmission component, connecting component, and separation component, allows workers to easily pull the anilox roller out from the inside of the device for replacement or maintenance, improving convenience and enabling easy separation of the anilox roller. It solves the problem of time-consuming and labor-intensive anilox roller replacement in existing equipment.

Description

Technical Field

[0001] This utility model relates to the field of flexographic printing technology, and in particular to a screen holder for flexographic printing of packaging gift boxes. Background Technology

[0002] Flexographic printing, also known as flexographic printing, is a letterpress printing technology that uses flexible photosensitive resin or rubber plates and transfers low-viscosity ink via an anilox roller. Its core principle is that the image areas are raised on the printing plate, like a stamp. Ink is evenly transferred to these raised image areas through an anilox roller with cells, and then directly pressed onto the substrate. Therefore, the most important structures in a flexographic printing unit are the printing plate roller and the anilox roller. The screen holder refers to the fixing structure of the anilox roller and the printing plate roller in the flexographic printing machine. When printing different colors or different jobs, it is necessary to change anilox rollers of different line counts or types. However, in existing flexographic printing equipment, replacing the anilox roller requires disassembling the bearing structure and doctor blade structure. Some enclosed systems even require replacing the entire flexographic printing unit, which is very time-consuming and labor-intensive. Therefore, this utility model improves the existing equipment to address the above problems. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a screen printing plate holder for flexographic printing of packaging gift boxes.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a screen printing plate holder for flexographic printing of packaging gift boxes, comprising a fixing frame, a printing plate roller horizontally fixed between the front ends of the fixing frame, the printing plate roller having raised patterns, a right mounting plate rear end rotatably connected to the right side of the outer side of the fixing frame, a left mounting plate rear end rotatably connected to the left side of the outer side of the fixing frame, a transmission component at the front end of the right mounting plate, a separation component at the front end of the left mounting plate, and a connecting component between the right mounting plate and the left mounting plate.

[0005] Preferably, the transmission assembly includes a first bearing flange, which is fixed to the right mounting plate by bolts. A first ball bearing is clamped and fixed inside the first bearing flange. The first ball bearing is fitted onto the right end of the splined shaft, and a pulley is installed and fixed on the right end face of the splined shaft.

[0006] Preferably, the connecting assembly includes a spline shaft, and an anilox roller is fitted onto the outer side of the spline shaft. The anilox roller has a grid groove of a fixed specification on its outer side.

[0007] Preferably, the separation component includes a rotating shaft plate, which is fixed to the left end face of the anilox roller by bolts.

[0008] Preferably, a rotating shaft is fixedly connected to the middle of the left end face of the rotating shaft plate, and a second ball bearing is sleeved on the outer side of the rotating shaft. The second ball bearing is clamped and fixed inside the second bearing flange.

[0009] Preferably, the second bearing flange is bolted to the right end face of the fixed plate, the fixed plate is bolted to the left mounting plate, and the left mounting plate has clearance holes that match the diameter of the anilox roller.

[0010] Compared with the prior art, the beneficial effects of this utility model are: through the cooperation of the transmission component, the connecting component and the separating component, this utility model makes it convenient for workers to pull out the anilox roller from the inside of the device at any time for replacement or maintenance, thus improving convenience and realizing the ability to easily separate the anilox roller; it also solves the problem of time-consuming and laborious replacement of the anilox roller in existing equipment. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0012] Figure 1 This is a three-dimensional schematic diagram of the overall appearance of the device proposed in this utility model;

[0013] Figure 2 This is a three-dimensional schematic diagram of the main body of the screen roller proposed in this utility model;

[0014] Figure 3 This is a three-dimensional schematic diagram of the transmission component proposed in this utility model;

[0015] Figure 4 This is a three-dimensional schematic diagram of the connecting component structure proposed in this utility model;

[0016] Figure 5 This is a three-dimensional schematic diagram of the separation component structure proposed in this utility model.

[0017] The numbers in the diagram are: 1. Fixing frame; 2. Printing roller; 3. Right mounting plate; 4. Left mounting plate; 5. First bearing flange; 6. First ball bearing; 7. Splined shaft; 8. Pulley; 9. Anilox roller; 10. Rotating shaft plate; 11. Second ball bearing; 12. Second bearing flange; 13. Fixing plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Example: See Figures 1 to 5 This utility model discloses a screen printing plate holder for flexographic printing of packaging gift boxes, comprising a fixing frame 1, a printing plate roller 2 horizontally fixed between the front ends of the fixing frame 1, the printing plate roller 2 having raised patterns, a right mounting plate 3 rear end rotatably connected to the right side of the outer side of the fixing frame 1, and a left mounting plate 4 rear end rotatably connected to the left side of the outer side of the fixing frame 1. The feature is that: a transmission component is provided at the front end of the right mounting plate 3, a separation component is provided at the front end of the left mounting plate 4, and a connecting component is provided between the right mounting plate 3 and the left mounting plate 4.

[0020] In this utility model, in order to solve the problem of time-consuming and labor-intensive replacement of anilox rollers in existing equipment, the following technical solution is adopted: The transmission component includes a first bearing flange 5, which is fixed to the right mounting plate 3 by bolt connection. A first ball bearing 6 is clamped and fixed inside the first bearing flange 5. The first ball bearing 6 is fitted and sleeved on the right end of the spline shaft 7. A pulley 8 is installed and fixed on the right end face of the spline shaft 7. The connecting assembly includes a splined shaft 7, on the outer side of which an anilox roller 9 is fitted. The outer side of the anilox roller 9 has a grid groove of a fixed specification. The separating assembly includes a rotating shaft plate 10, which is bolted to the left end face of the anilox roller 9. A rotating shaft is fixed to the middle of the left end face of the rotating shaft plate 10. A second ball bearing 11 is fitted on the outer side of the rotating shaft. The second ball bearing 11 is clamped and fixed inside a second bearing flange 12. The second bearing flange 12 is bolted to the right end face of a fixed plate 13. The fixed plate 13 is bolted to a left mounting plate 4. The left mounting plate 4 has clearance holes that match the diameter of the anilox roller 9. Through the cooperation of the transmission assembly, connecting assembly, and separating assembly, it is convenient for operators to pull out the anilox roller 9 from the inside of the device for replacement or maintenance at any time, improving convenience.

[0021] Working Principle: When the screen holder for flexographic printing of gift boxes of this utility model is put into use, the device is first installed and fixed on the printing unit of the flexographic printing equipment through the fixing frame 1. At this time, the transmission device of the flexographic printing equipment will be connected to the pulley 8 fixed on the right end face of the spline shaft 7. The pulley 8 drives the spline shaft 7 to rotate. Since the outer side of the spline shaft 7 is fitted with an anilox roller 9, and the left end face of the anilox roller 9 is fixed with a rotating shaft plate 10 by bolts, the outer side of the rotating shaft fixed to the middle of the left end face of the rotating shaft plate 10 is fitted with a second ball bearing 11. The second ball bearing 11 is clamped and fixed to the second bearing flange 12. Internally, the second bearing flange 12 is bolted to the right end face of the fixed plate 13, which is then bolted to the left mounting plate 4. Simultaneously, the right end of the splined shaft 7 is mounted inside the first bearing flange 5 via the first ball bearing 6. The first bearing flange 5 is bolted to the right mounting plate 3. The rear end of the right mounting plate 3 is rotatably connected to the right side of the outer surface of the fixed frame 1, and the rear end of the left mounting plate 4 is rotatably connected to the left side of the outer surface of the fixed frame 1, allowing the anilox roller 9 to rotate stably under the drive of the splined shaft 7. During rotation, the anilox roller 9 first absorbs the ink required for flexographic printing, which is then absorbed by the flexographic printing equipment. The squeegee removes excess ink from the surface, then rotates until it contacts the printing roller 2, which is horizontally mounted and fixed at the front end of the frame 1. The printing roller 2 has raised patterns. The anilox roller 9, in coordination with the rotation of the printing roller 2, applies a measured and even amount of ink to the raised patterns. The printing roller 2 then continues to rotate, transferring the ink from the raised patterns onto the packaging gift box material to be printed, completing the printing operation. When changing to different types of packaging gift box materials, the flexographic printing machine needs to replace the anilox roller 9 with the corresponding model according to the printing requirements of the new material (the anilox roller 9 has fixed-specification grid grooves on its outer surface; different models of anilox roller 9...). (The grid groove specifications are different). At this time, it is necessary to first operate the flexographic printing equipment to release the pressure, drain the ink, and clean the excess ink in the device. Then, unscrew the connecting bolts between the fixed plate 13 and the left mounting plate 4 to separate the fixed plate 13 from the left mounting plate 4. Since the left mounting plate 4 has a clearance hole to match the diameter of the anilox roller 9, and the anilox roller 9 and the spline shaft 7 are in a fitted relationship, the operator can directly pull the anilox roller 9 together with the second bearing flange 12 and the fixed plate 13 to the right along the spline shaft 7. During the pulling process, the spline shaft 7 plays a guiding role, effectively avoiding the operator from directly contacting the surface of the anilox roller 9 and causing contamination or damage.

[0022] After extraction, unscrew the fixing bolts between the rotating shaft plate 10 and the anilox roller 9 to remove the old anilox roller 9. Then, fit the new anilox roller 9 onto the splined shaft 7. Reinstall and fix the rotating shaft plate 10 to the left end face of the new anilox roller 9 with bolts. Then reverse the above disassembly operation and push the assembly with the new anilox roller 9 to the left along the splined shaft 7 so that the second bearing flange 12 is aligned with the fixing plate 13 and fixed with bolts. Then connect and fix the fixing plate 13 to the left mounting plate 4 with bolts to complete the installation of the new anilox roller 9. The whole process does not require complicated operations, realizing the quick and convenient replacement of the anilox roller 9, improving the portability of the device, saving time and effort. After completing the printing of all packaging gift box materials, turn off the flexographic printing equipment, the device stops running, and the usage process ends.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A screen printing plate holder for flexographic printing of gift boxes, comprising a mounting frame (1), wherein a printing plate roller (2) is horizontally mounted and fixed between the front ends of the mounting frame (1), the printing plate roller (2) having a raised pattern, a right mounting plate (3) rear end rotatably connected to the right side of the outer side of the mounting frame (1), and a left mounting plate (4) rear end rotatably connected to the left side of the outer side of the mounting frame (1), characterized in that: The right mounting plate (3) has a transmission component at its front end, the left mounting plate (4) has a separation component at its front end, and a connection component is provided between the right mounting plate (3) and the left mounting plate (4).

2. The screen fixing seat for packaging gift box flexographic printing according to claim 1, characterized in that: The transmission assembly includes a first bearing flange (5), which is fixed to the right mounting plate (3) by bolts. A first ball bearing (6) is clamped and fixed inside the first bearing flange (5). The first ball bearing (6) is fitted and sleeved on the right end of the spline shaft (7). A pulley (8) is installed and fixed on the right end face of the spline shaft (7).

3. The screen printing plate holder for flexographic printing of gift boxes according to claim 2, characterized in that: The connecting assembly includes a spline shaft (7), and an anilox roller (9) is fitted on the outer side of the spline shaft (7). The anilox roller (9) has a grid groove of a fixed specification on its outer side.

4. A screen printing plate holder for flexographic printing of gift boxes according to claim 3, characterized in that: The separation assembly includes a rotating shaft plate (10), which is fixed to the left end face of the anilox roller (9) by bolts.

5. The screen fixing seat for packaging gift box flexographic printing according to claim 4, characterized in that: A rotating shaft is fixed to the middle of the left end face of the rotating shaft plate (10), and a second ball bearing (11) is sleeved on the outer side of the rotating shaft. The second ball bearing (11) is clamped and fixed inside the second bearing flange (12).

6. The screen fixing seat for packaging gift box flexographic printing according to claim 5, characterized in that: The second bearing flange (12) is fixed to the right end face of the fixed plate (13) by bolts. The fixed plate (13) is fixed to the left mounting plate (4) by bolts. The left mounting plate (4) has a clearance hole that matches the diameter of the anilox roller (9).

Images