A green printing corrugated paper surface pretreatment device

Abstract

The utility model relates to a corrugated paper surface pretreatment device for green printing belongs to green printing technical field, this corrugated paper surface pretreatment device for green printing, include: the fixed frame is provided with the rolling mechanism on the fixed frame, to the extrusion transmission of corrugated paper, be provided with the spraying mechanism that handles the corrugated paper surface on the fixed frame, the spraying mechanism includes the liquid storage tank fixedly connected on the fixed frame, the liquid storage tank is filled with cellulose solution, the liquid storage tank is connected with the liquid guide tube, the liquid guide tube bottom evenly distributed has a plurality of spray head, still include infiltration mechanism, improve the processing effect to the corrugated paper surface, set up the spraying mechanism, through the spray head to the cellulose solution in the liquid storage tank is to the corrugated paper surface and sprays, through the cellulose solution infiltration into the corrugated paper surface, to the pore in the corrugated paper is filled, improve the printing effect to the corrugated paper.

Description

Technical Field

[0001] This utility model relates to the field of green printing technology, and in particular to a surface pretreatment device for corrugated paper used in green printing. Background Technology

[0002] Corrugated paper is a sheet-like material made by bonding linerboard and corrugated paper, which is formed into a wave shape by corrugating rollers. It is generally divided into single-wall and double-wall corrugated paperboard, and according to the size of the corrugations, it is classified into five types: A, B, C, E, and F. Corrugated paper has been invented and used for over a hundred years. It has advantages such as low cost, light weight, easy processing, high strength, excellent printability, and convenient storage and handling. More than 80% of corrugated paper can be recycled. Corrugated paper can be used for packaging food or digital products, is relatively environmentally friendly, and has a wide range of applications. However, due to the rough fibers and high porosity of the corrugated paper surface, direct printing on it can easily result in uneven ink penetration and color distortion.

[0003] Currently, the industry mainly improves the surface properties of corrugated paper through chemical coatings or physical sanding. However, chemical coatings may introduce harmful substances, while physical sanding is inefficient and causes serious dust pollution. With increasingly stringent environmental regulations, the development of efficient and pollution-free corrugated paper surface pretreatment technologies has become an urgent need for the industry. Utility Model Content

[0004] Therefore, it is necessary to provide a green surface pretreatment device for corrugated paper used in printing, which addresses the problems that chemical coatings may introduce harmful substances, while physical sanding is inefficient and causes serious dust pollution.

[0005] A green printing corrugated paper surface pretreatment device includes: a fixed frame, on which a roller pressing mechanism is installed to compress and convey the corrugated paper; a spraying mechanism for treating the surface of the corrugated paper is installed on the fixed frame; the spraying mechanism includes a liquid storage tank fixedly connected to the fixed frame, the liquid storage tank being filled with a cellulose solution, a liquid guide pipe connected to the liquid storage tank, and multiple nozzles evenly distributed at the bottom of the liquid guide pipe; and a penetration mechanism to improve the treatment effect on the surface of the corrugated paper.

[0006] In one embodiment, the rolling mechanism includes an active roller and a driven roller that are rotatably connected to a fixed frame from top to bottom, and a drive motor is provided at one end of the active roller.

[0007] In one embodiment, the drive roller is configured as a steel roller, and the surface of the drive roller is provided with a mesh texture.

[0008] In one embodiment, a water pump is fixedly installed inside the liquid storage tank, and the water pump outlet is connected to the liquid guide pipe through a pipeline.

[0009] In one embodiment, the permeation mechanism includes a vacuum pump fixedly connected to the bottom of a mounting frame. A support plate is fixedly connected to one side of the mounting frame below the liquid guide tube. A negative pressure groove is formed on the support plate, and the negative pressure groove is connected to the air inlet of the vacuum pump through a pipe.

[0010] In one embodiment, a baffle is symmetrically slidably connected inside the support plate, and the top of the baffle is in contact with the bottom of the negative pressure groove.

[0011] In one embodiment, the support plate is positioned directly below the nozzle, and a valve is installed on the nozzle pipeline.

[0012] In one embodiment, the surface of the liquid storage tank is provided with a liquid filling port, and the water pump inlet is provided with a filter screen.

[0013] Beneficial effects

[0014] A spraying mechanism is installed, which sprays the cellulose solution in the storage tank onto the surface of the corrugated paper through the nozzle. The cellulose solution penetrates into the surface of the corrugated paper to fill the pores inside the corrugated paper and improve the printing effect of the corrugated paper.

[0015] When spraying the cellulose solution, the vacuum pump is started. The vacuum pump draws air out from the negative pressure tank. When the corrugated paper passes over the support plate, a negative pressure is formed at the bottom of the corrugated paper, which draws the sprayed cellulose solution into the surface of the corrugated paper, improving the penetration effect and thus improving the surface treatment effect of the corrugated paper. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the roller pressing mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the spraying mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the permeation mechanism of this utility model.

[0021] Figure label:

[0022] 100. Fixed frame; 200. Roller pressing mechanism; 210. Driving roller; 211. Driven roller; 300. Spraying mechanism; 310. Liquid storage tank; 311. Liquid guide pipe; 312. Nozzle; 400. Permeation mechanism; 410. Vacuum pump; 411. Support plate; 412. Negative pressure tank; 413. Baffle. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments 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 some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0028] The following is combined Figures 1-4 This invention describes a green corrugated paper surface pretreatment device for printing.

[0029] In one embodiment, a pretreatment device for the surface of corrugated paper used in green printing includes: a fixed frame 100, on which a roller pressing mechanism 200 is provided to extrude and convey the corrugated paper; a spraying mechanism 300 for treating the surface of the corrugated paper is provided on the fixed frame 100; the spraying mechanism 300 includes a liquid storage tank 310 fixedly connected to the fixed frame 100, the liquid storage tank 310 being filled with a cellulose solution, a liquid guide pipe 311 connected to the liquid storage tank 310, a plurality of nozzles 312 evenly distributed at the bottom of the liquid guide pipe 311, and a penetration mechanism 400 to improve the treatment effect on the surface of the corrugated paper.

[0030] like Figure 2 As shown, the roller pressing mechanism 200 includes an active roller 210 and a driven roller 211 that are rotatably connected to the fixed frame 100 from top to bottom. One end of the active roller 210 is provided with a drive motor.

[0031] In this embodiment, the drive motor rotates the active roller 210. By adjusting the gap between the active roller 210 and the driven roller 211, the active roller 210 and the driven roller 211 compress and convey the corrugated paper, causing the corrugated paper to be conveyed towards the liquid guide pipe 311. When the corrugated paper moves below the nozzle 312, the cellulose solution in the storage tank 310 enters the nozzle 312 through the liquid guide pipe 311. The nozzle 312 then evenly sprays the cellulose solution onto the surface of the corrugated paper, filling the pores and improving smoothness, thereby enhancing the printing effect. The cellulose solution also possesses environmentally friendly, biocompatible, and adjustable properties. Because cellulose is derived from natural plant fibers, it has good biodegradability and will not impose a long-term burden on the environment.

[0032] like Figure 2 As shown, the drive roller 210 is a steel roller, and the surface of the drive roller 210 is provided with a mesh texture.

[0033] In this embodiment, the rolling pressure between the driving roller 210 and the driven roller 211 is controlled at 20 N / mm², which compacts the surface fibers without damaging the corrugated structure. The driving roller 210 is equipped with a heating rod to heat the steel roller, softening the fibers on the surface of the corrugated paper. A mesh texture is then used to treat the surface of the corrugated paper, with the mesh texture set to 120 mesh. The driven roller 211 is a rubber roller with a Shore hardness of 70±5.

[0034] like Figure 1 and Figure 3 As shown, a water pump is fixedly installed inside the liquid storage tank 310, and the water pump outlet is connected to the liquid guide pipe 311 via a pipe. A support plate 411 is positioned directly below the nozzle 312, and a valve is installed on the nozzle 312 pipe. A liquid filling port is provided on the surface of the liquid storage tank 310, and a filter screen is installed at the water pump inlet.

[0035] In this embodiment, a water pump is used to extract the cellulose solution from the storage tank 310 and send it to the nozzle 312 for spraying. The corresponding nozzle 312 is closed according to the width of the corrugated paper to avoid waste.

[0036] like Figure 4 As shown, the permeation mechanism 400 includes a vacuum pump 410 fixedly connected to the bottom of the fixed frame 100. A support plate 411 is fixedly connected to one side of the fixed frame 100 below the liquid guide pipe 311. A negative pressure groove 412 is provided on the support plate 411. The negative pressure groove 412 is connected to the air inlet of the vacuum pump 410 through a pipe.

[0037] In this embodiment, as the corrugated paper passes over the surface of the support plate 411, the vacuum pump 410 draws air in from the negative pressure tank 412. Due to the obstruction of the corrugated paper, a negative pressure is formed at the bottom of the corrugated paper, drawing the cellulose solution sprayed on the surface of the corrugated paper inwards, thereby increasing the solution's permeability. The vacuum degree is set to -0.05 MPa.

[0038] like Figure 4 As shown, a baffle 413 is symmetrically slidably connected inside the support plate 411, and the top of the baffle 413 is in contact with the bottom of the negative pressure groove 412.

[0039] In this embodiment, the pull-out length of the baffle 413 is adjusted according to the width of the corrugated paper so that the exposed length of the negative pressure groove 412 corresponds to the width of the corrugated paper.

[0040] Working principle: Corrugated paper is conveyed to the space between the drive roller 210 and the driven roller 211 via a conveyor belt. Under the action of the drive roller 210, the corrugated paper passes through the gap between the drive roller 210 and the driven roller 211. The drive roller 210 is heated to 80°C to soften the fibers on the surface of the corrugated paper. The nozzle 312 sprays cellulose solution, and the negative pressure groove 412 draws the cellulose solution into the interior of the corrugated paper, so that the solution is evenly penetrated into the paper surface.

[0041] It should be noted that the active roller 210, driven roller 211, nozzle 312, vacuum pump 410 and other components mentioned above are all devices with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the vacuum pump 410 is powered by AC mains power, which will not be described in detail here.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A surface pretreatment device for corrugated paper used in green printing, characterized in that, include: A fixed frame (100) is provided with a roller pressing mechanism (200) to extrude and convey corrugated paper, and a spraying mechanism (300) to treat the surface of the corrugated paper is provided on the fixed frame (100). The spraying mechanism (300) includes a liquid storage tank (310) fixedly connected to a fixed frame (100), the liquid storage tank (310) is filled with cellulose solution, a liquid guide pipe (311) is connected to the liquid storage tank (310), and multiple nozzles (312) are evenly distributed at the bottom of the liquid guide pipe (311). It also includes a permeation mechanism (400) to improve the treatment effect on the surface of corrugated paper.

2. The surface pretreatment device for corrugated paper used in green printing according to claim 1, characterized in that, The roller pressing mechanism (200) includes an active roller (210) and a driven roller (211) that are rotatably connected to the fixed frame (100) from top to bottom. One end of the active roller (210) is provided with a drive motor.

3. The surface pretreatment device for corrugated paper used in green printing according to claim 2, characterized in that, The active roller (210) is a steel roller, and the surface of the active roller (210) is provided with a mesh texture.

4. The surface pretreatment device for corrugated paper used in green printing according to claim 1, characterized in that, A water pump is fixedly installed inside the liquid storage tank (310), and the water pump outlet is connected to the liquid guide pipe (311) through a pipe.

5. The surface pretreatment device for corrugated paper used in green printing according to claim 1, characterized in that, The permeation mechanism (400) includes a vacuum pump (410) fixedly connected to the bottom of the fixed frame (100). A support plate (411) is fixedly connected to one side of the fixed frame (100) below the liquid guide pipe (311). A negative pressure groove (412) is provided on the support plate (411). The negative pressure groove (412) is connected to the air inlet of the vacuum pump (410) through a pipe.

6. The surface pretreatment device for corrugated paper for green printing according to claim 5, characterized in that, The support plate (411) is symmetrically slidably connected with baffles (413), and the top of the baffles (413) is in contact with the bottom of the negative pressure groove (412).

7. The surface pretreatment device for corrugated paper for green printing according to claim 6, characterized in that, The support plate (411) is located directly below the nozzle (312), and a valve is provided on the nozzle (312) pipeline.

8. The surface pretreatment device for corrugated paper used in green printing according to claim 4, characterized in that, The surface of the liquid storage tank (310) is provided with a liquid filling port, and the water pump inlet is provided with a filter screen.

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