Static elimination device for flexographic printing of carton

Abstract

The utility model is suitable for the technical field of static electricity elimination, and provides a static electricity elimination device for flexographic printing of a carton. The first conveying roller and the second conveying roller rotate on the inner side wall of the rack, and the first conveying roller is located above the second conveying roller; the upper protective cover and the lower protective cover are fixed to the center of the inner side wall of the rack through bolts, and the upper protective cover is located above the lower protective cover; the collecting box is fixed on the outer side walls of the upper protective cover and the lower protective cover through bolts; the box cover is hinged to the top or the bottom of the collecting box; the partition plate is welded to the inner bottom or the inner top of the collecting box; a large amount of compressed air with positive and negative charges is blown to a paperboard at a high speed, charges on the paperboard can be neutralized, dust adsorbed on the paperboard can be blown away by impacting the paperboard through the air flowing at the high speed, static electricity and dust of the carton paperboard are synchronously removed, and the quality of the paperboard during flexible printing is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of static elimination, and particularly relates to a static elimination device for flexographic printing of cartons. Background Art

[0002] Flexographic printing of cartons is to print on the surface of cartons. Cartons are commonly used packaging materials nowadays. During the process of printing cartons, static electricity is a problem that must be solved. The cardboard with static electricity is easy to adsorb a large amount of dust and affect the dispersion of ink, resulting in poor printing quality. Therefore, when printing cartons, a static elimination device is needed to eliminate static electricity. The traditional static elimination device is not conducive to large-area static elimination, and can only eliminate static electricity on one side of the carton at a time, greatly reducing its working efficiency.

[0003] In the prior art, a Chinese patent with the publication number of CN 214851948 U can be referred to. It discloses a static elimination device for flexographic printing of cartons, including a workbench. Both sides of the top of the workbench are provided with first support plates. Both ends inside the first support plates are provided with front-back moving components. Above the workbench and inside the front-back moving components is provided with a second support plate. Inside the second support plate is provided with a left-right moving component. Inside the left-right moving component is provided with a mounting component. Inside the mounting component is provided with a static elimination device. The utility model makes it possible to eliminate static electricity on the upper and lower surfaces of the carton by respectively arranging two groups of static elimination devices above and below the carton, improving the working efficiency.

[0004] This comparative document provides a static elimination device for flexographic printing of cartons. However, when eliminating static electricity from the cardboard, the above-mentioned patent needs the static elimination device to move horizontally back and forth to achieve comprehensive static elimination of the cardboard. In this way, the cardboard needs to stop every time it is conveyed a certain distance to provide time for the horizontal movement of the static elimination device, reducing the cardboard processing efficiency.

[0005] Therefore, a static elimination device for flexographic printing of cartons is proposed. Summary of the Utility Model

[0006] The utility model provides a static elimination device for flexographic printing of cartons, aiming to solve the above problems.

[0007] The present utility model is realized as follows. An electrostatic elimination device for flexographic printing of cartons includes: a frame; a first conveying roller and a second conveying roller rotatably disposed on the inner sidewall of the frame, with the first conveying roller located above the second conveying roller; an upper protective cover and a lower protective cover fixedly mounted on the central position of the inner sidewall of the frame by bolts, with the upper protective cover located above the lower protective cover; collection boxes fixedly mounted on the outer sidewalls of the upper protective cover and the lower protective cover by bolts; a box cover hinged to the top or bottom of the collection box; and a partition welded to the inner bottom or inner top of the collection box; a filter screen embedded in one outer wall of the collection box; air inlets opened on the other outer wall of the collection box; flow guiding platforms welded to the inner sidewalls of the upper protective cover and the lower protective cover; and air inlet grooves opened at positions on the inner sidewalls of the upper protective cover and the lower protective cover close to one side of the flow guiding platforms; ion air gun nozzles penetrating through the top of the upper protective cover and the bottom of the lower protective cover; a high-voltage generator fixedly mounted on the outer sidewall of the frame by bolts; a connecting main pipe fixedly mounted on the top of the high-voltage generator by bolts; and connecting branch pipes connected and fixed between the connecting main pipe and the ion air gun nozzles.

[0008] Preferably, six first conveying rollers and six second conveying rollers are provided in total, and the six first conveying rollers and the six second conveying rollers are symmetrically arranged on the inner sidewall of the frame.

[0009] Preferably, the air inlets and the air inlet grooves are communicated with each other.

[0010] Preferably, the cross-section of the flow guiding platform is a right-angled triangle structure.

[0011] Preferably, the collection box and the box cover are snap-fitted and connected.

[0012] Preferably, both the upper protective cover and the lower protective cover are hollow rectangular parallelepiped structures with one side open.

[0013] Preferably, the ion air gun nozzles are perpendicular to the horizontal plane.

[0014] Preferably, the connecting main pipe and the connecting branch pipes are communicated with each other.

[0015] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0016] By arranging the upper protective cover and the lower protective cover closely against the upper and lower surfaces of the cardboard, electrostatic elimination can be achieved during the conveying process of the cardboard, without the cardboard stopping intermittently, improving the printing efficiency of the cardboard. By blowing a large amount of compressed gas with positive and negative charges at high speed towards the cardboard, the charges carried on the cardboard can be neutralized, and the dust adsorbed on the cardboard can be blown away by the high-speed flowing gas, realizing the synchronous elimination of static electricity and dust on the carton cardboard, and ensuring the quality during the flexographic printing of the cardboard. Description of the Drawings

[0017] Figure 1 is a structural schematic diagram of the present utility model;

[0018] Figure 2 is a structural schematic diagram of the upper protective cover and the lower protective cover of the present utility model;

[0019] Figure 3 is a sectional view of the upper protective cover of the present utility model;

[0020] Figure 4 is a sectional view of the collection box of the present utility model;

[0021] Figure 5 is a structural schematic diagram of the frame of the present utility model;

[0022] Figure 6 is the present utility model Figure 2 enlarged view of part A in.

[0023] In the figure: 1, frame; 2, first conveying roller; 3, second conveying roller; 4, upper protective cover; 5, lower protective cover; 6, collection box; 7, box cover; 8, partition board; 9, filter screen; 10, air inlet hole; 11, diversion table; 12, air inlet groove; 13, ion air gun nozzle; 14, high-voltage generator; 15, connecting main pipe; 16, connecting branch pipe. Detailed implementation manners

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0025] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0026] An embodiment of the present utility model provides an electrostatic elimination device for flexographic printing of cartons, as Figures 1-6As shown in the figure, it includes a frame 1. A first conveying roller 2 and a second conveying roller 3 are rotatably connected to the inner side wall of the frame 1. The first conveying roller 2 is located above the second conveying roller 3. There are six first conveying rollers 2 and six second conveying rollers 3 in total. The six first conveying rollers 2 and the six second conveying rollers 3 are symmetrically arranged on the inner side wall of the frame 1. At the central position of the inner side wall of the frame 1, an upper protective cover 4 and a lower protective cover 5 are fixedly connected by bolts. The upper protective cover 4 is located above the lower protective cover 5. Both the upper protective cover 4 and the lower protective cover 5 are hollow rectangular parallelepiped structures with one side open. On the outer side wall of one side of the upper protective cover 4 and the lower protective cover 5, a collection box 6 is fixedly connected by bolts. On the top of the collection box 6 on the outer side wall of the upper protective cover 4 and the bottom of the collection box 6 on the outer side wall of the lower protective cover 5, a box cover 7 is hinged. The collection box 6 and the box cover 7 are snap-fitted. On the inner bottom of the collection box 6 on the outer side wall of the upper protective cover 4 and the inner top of the collection box 6 on the outer side wall of the lower protective cover 5, a partition 8 is welded. A filter screen 9 is embedded on the outer side wall of one side of the collection box 6, and an air inlet hole 10 is opened on the outer side wall of the other side of the collection box 6. On the inner side walls of the upper protective cover 4 and the lower protective cover 5, a diversion platform 11 is welded, and an air inlet groove 12 is opened at a position close to the diversion platform 11 on the inner side walls of the upper protective cover 4 and the lower protective cover 5. An ion air gun nozzle 13 is embedded and penetrated through the top of the upper protective cover 4 and the bottom of the lower protective cover 5. The ion air gun nozzle 13 is perpendicular to the horizontal plane. On the outer side wall of one side of the frame 1, a high-voltage generator 14 is fixedly connected by bolts. The output end of the high-voltage generator 14 is fixedly connected by bolts with a connecting main pipe 15. A connecting branch pipe 16 is connected and communicated between the connecting main pipe 15 and the ion air gun nozzle 13. The connecting main pipe 15 and the connecting branch pipe 16 are connected and communicated with each other.

[0027] It should be noted that since the existing electrostatic elimination device for flexible plate printing of cartons needs to move horizontally back and forth to achieve the all-round electrostatic elimination of the cardboard during the electrostatic elimination of the cardboard, it is necessary to stop for a period of time for the horizontal movement of the electrostatic elimination device every time the cardboard is conveyed a certain distance, which reduces the processing efficiency of the cardboard. In this embodiment, by arranging the upper protective cover 4 and the lower protective cover 5 closely against the upper and lower surfaces of the cardboard, the electrostatic elimination of the cardboard can be realized during the conveying process of the cardboard without the cardboard stopping intermittently, improving the printing efficiency of the cardboard. By blowing a large amount of compressed gas with positive and negative charges at high speed onto the cardboard, the charges carried on the cardboard can be neutralized, and the dust adsorbed on the cardboard can be blown away by the high-speed flowing gas, realizing the synchronous elimination of static electricity and dust on the carton cardboard and ensuring the quality during the flexible printing of the cardboard.

[0028] Specifically, in this embodiment, the solution mainly includes an upper protective cover 4 and a lower protective cover 5. During use, the cardboard required for flexographic printing of cartons is inserted between the first conveying roller 2 and the second conveying roller 3. Through the rotation of the first conveying roller 2 and the second conveying roller 3, the cardboard is pushed. The cardboard moves between the upper protective cover 4 and the lower protective cover 5. The top of the cardboard fits against the bottom of the upper protective cover 4, and the bottom of the cardboard fits against the top of the lower protective cover 5. The high-voltage generator 14 and the ion air gun nozzle 13 blow a large amount of compressed air with positive and negative charges at high speed towards the cardboard, which can neutralize the charges carried by the cardboard (when the charge carried on the cardboard surface is negative, it will attract the positive charges in the air flow, and when the charge carried on the cardboard surface is positive, it will attract the negative charges in the air flow, so that the static electricity on the cardboard surface is neutralized, achieving the purpose of eliminating static electricity). The high-speed compressed air can also blow away the stubborn dust on the cardboard. The dust and gas enter the collection box 6 after passing through the air guide table 11, the air inlet groove 12, and the air inlet hole 10. The dust is filtered by the filter screen 9 and collected inside the collection box 6, and the gas passes through the filter screen 9 and is discharged. When it is necessary to clean the dust, open the box cover 7 and then clean it.

[0029] In a further preferred embodiment of the present invention, as Figures 1-4 shown, the air inlet hole 10 is communicated with the air inlet groove 12, and the cross-section of the air guide table 11 is a right triangle structure.

[0030] In this embodiment, the air guide table 11 with a triangular structure can obliquely guide the gas and dust on the cardboard, so that the gas and dust enter the collection box 6 after passing through the air inlet groove 12 and the air inlet hole 10.

[0031] It should be noted that for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps may be in other sequences or carried out simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0032] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the above-mentioned unit division may have other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point, the shown or discussed coupling or communication connection between each other can be through some interfaces. The indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0033] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or may be distributed across multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without creative efforts, combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances, so as to obtain different technical solutions that essentially do not deviate from the concept of the present invention, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A static elimination device for carton flexographic printing, characterized in that: include: Rack (1); A first conveying roller (2) and a second conveying roller (3) rotating on the inner side wall of the frame (1), wherein the first conveying roller (2) is located above the second conveying roller (3); An upper protective cover (4) and a lower protective cover (5) are fixed to the central position of the inner side wall of the frame (1) by bolts, and the upper protective cover (4) is located above the lower protective cover (5); A collection box (6) fixed to the outer side walls of the upper protective cover (4) and the lower protective cover (5) by bolts; a box cover (7) hinged to the top or bottom of the collection box (6); and A partition plate (8) welded to the inner bottom or inner top of the collecting box (6); A filter screen (9) embedded in an outer wall of one side of the collection box (6); An air inlet (10) is provided on the outer wall of the other side of the collecting box (6); A guide platform (11) welded to the inner side walls of the upper protective cover (4) and the lower protective cover (5); and An air inlet groove (12) is provided on the inner side wall of the upper protective cover (4) and the lower protective cover (5) at a position close to the guide platform (11); An ion air gun nozzle (13) passing through the top of the upper protective cover (4) and the bottom of the lower protective cover (5); A high voltage generator (14) fixed to the outer side wall of the frame (1) by means of bolts; A connecting main pipe (15) fixed to the top of the high-voltage generator (14) by bolts; A connecting branch pipe (16) is connected and fixed between the connecting main pipe (15) and the ion air gun nozzle (13).

2. The static elimination device for carton flexographic printing as claimed in claim 1, characterized in that: A total of six first conveying rollers (2) and six second conveying rollers (3) are provided, and the six first conveying rollers (2) and the six second conveying rollers (3) are symmetrically arranged on the inner side wall of the frame (1).

3. The static elimination device for carton flexographic printing as claimed in claim 1, characterized in that: The air inlet hole (10) and the air inlet groove (12) are connected.

4. The static elimination device for carton flexographic printing as claimed in claim 1, characterized in that: The cross section of the guide platform (11) is a right-angled triangle structure.

5. The static elimination device for carton flexographic printing as claimed in claim 1, characterized in that: The collection box (6) and the box cover (7) are connected via a buckle snap fit.

6. The static elimination device for carton flexographic printing as claimed in claim 1, characterized in that: The upper protective cover (4) and the lower protective cover (5) are both hollow rectangular parallelepiped structures with one side open.

7. The static elimination device for carton flexographic printing as claimed in claim 1, characterized in that: The ion air gun nozzle (13) is perpendicular to the horizontal plane.

8. The static elimination device for carton flexographic printing as claimed in claim 1, characterized in that: The connecting main pipe (15) and the connecting branch pipe (16) are connected.

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