Green and environment-friendly printing device for printing

Abstract

The invention discloses a green and environment-friendly printing device for printing, which is characterized in that slidable protective doors are arranged on two sides of a workbench, so that a closed or semi-closed cavity can be formed by the protective doors and the workbench under the action of the corresponding protective doors, and a printing operation area is effectively surrounded. By means of the design, it is ensured that harmful gas (such as VOCs) generated in the printing process can be captured in the controlled environment, and the harmful gas is prevented from being directly discharged into a workshop or the external environment; the purifying mechanism is arranged on the upper portion of the protective door and is just located at the key position of the harmful gas rising path, the layout is beneficial for making contact with and treating gas escaping from a printing area to the maximum extent, volatile organic compounds (VOCs) released in the printing process can be effectively captured and treated through the effect of the purifying mechanism, and therefore the purpose of improving the printing quality is achieved. Therefore, the purification efficiency is improved, the emission of pollutants is reduced, and the concept of environmental protection is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of packaging box printing, and in particular to a green and environmentally friendly printing device for printing. Background Art

[0002] As the name suggests, a packaging box is a box used to package products. The functions of a packaging box are to ensure the safety of products during transportation and to improve the grade of products. After cutting and processing, the packaging box needs to be printed on the surface. The text, pictures, photos, anti-counterfeiting and other originals are transferred to the surface of paper, textiles, plastics, leather, PVC, PC and other materials through plate making, inking, pressurization and other processes to batch copy the original content.

[0003] As consumers become more aware of environmental protection and the world pays more attention to sustainable development, the packaging industry is facing pressure to transform. The inks and coatings used in the traditional packaging printing process contain harmful substances such as volatile organic compounds (VOCs), which will be released into the environment after production and use, not only polluting the air and water, but also endangering human health. Summary of the invention

[0004] The purpose of the present invention is to provide a green and environmentally friendly printing device for printing, which can purify some harmful gases generated during the printing process of packaging boxes, so as to greatly reduce the pollution to the environment caused by the emission of volatile organic compounds (VOCs) contained in the coating, and at the same time achieve the concept of green environmental protection.

[0005] In order to solve the above technical problems, the present invention adopts a technical solution:

[0006] A green environmentally friendly printing device for printing comprises:

[0007] Workbench;

[0008] A printing mechanism, arranged on the workbench;

[0009] A protective door is slidably disposed on both sides of the workbench, and a cavity is formed between the protective door and the workbench;

[0010] The purification mechanism is arranged on the upper part of the protection door and is used for purifying harmful gases generated during the printing process of the packaging box.

[0011] According to some embodiments, an air collecting port is provided at the upper portion of the protective door, and the purification mechanism is provided at the air collecting port, and the purification mechanism includes:

[0012] A purification treatment box is arranged on the upper part of the protection door and located at the air collecting port, an air inlet connected to the air collecting port is opened at the lower part of the purification treatment box, and an air outlet is opened at the upper part of the purification treatment box;

[0013] An exhaust fan is arranged at the air inlet;

[0014] A filter assembly is arranged directly above the induced draft fan;

[0015] The electrode purification component is arranged directly above the filter component.

[0016] According to some embodiments, the filter assembly comprises:

[0017] Mounting blocks are arranged on both sides of the purification treatment box;

[0018] The filter frame is clamped between the two mounting blocks. The filter frame is provided with a first filter plate, a second filter plate and a third filter plate in sequence from bottom to top. The first filter plate, the second filter plate and the third filter plate are all provided with a plurality of first air flow holes.

[0019] According to some embodiments, the first filter plate is a non-woven fabric or a metal mesh porous material, the second filter plate is a granular activated carbon or an activated carbon fiber felt material, and the third filter plate is a HEPA filter paper made of glass fiber and a chemical filter medium containing specific chemical agents.

[0020] According to some embodiments, the electrode purification assembly is disposed directly above the filter frame, and the electrode purification assembly includes:

[0021] A first electrode sheet is disposed directly above the third filter plate;

[0022] A second electrode sheet is slidably disposed directly above the first electrode sheet;

[0023] A first mounting plate is provided on one side of the purification treatment box and is located between the first electrode sheet and the second electrode sheet;

[0024] The first adjusting screw is rotatably arranged on the first mounting plate, the top end of the first adjusting screw passes through the second electrode sheet and extends to the outside of the purification treatment box and is connected to a first driving motor, which is arranged on the upper part of the purification treatment box.

[0025] According to some embodiments, an air bleed cylinder is disposed on the upper portion of the purification treatment box, a fourth filter plate is disposed in the inner cavity of the air bleed cylinder, and the fourth filter plate is a catalyst coating filter.

[0026] According to some embodiments, the printing mechanism comprises:

[0027] A guide rail frame is vertically arranged on one side of the workbench;

[0028] A slide plate is slidably mounted on the guide rail frame, and a slide groove is horizontally provided on the slide plate;

[0029] A telescopic cylinder is arranged above the guide rail frame, and an output end of the telescopic cylinder is connected to the slide plate;

[0030] A grid frame is disposed below the slide plate through a first connecting rod;

[0031] A second drive motor is disposed on one side of the slide plate, an output end of the second drive motor passes through the slide plate and extends into the slide slot to be connected with a second adjusting screw, and the second adjusting screw is rotatably disposed in the slide slot;

[0032] A sliding rod, sleeved on the second adjusting screw;

[0033] A printing head is arranged on one side of the sliding rod, and the printing head is in contact with the grid frame.

[0034] According to some embodiments, an alternating feeding assembly is provided below the printing head, and the alternating feeding assembly comprises:

[0035] A base, arranged on the upper part of the workbench;

[0036] A second mounting plate is provided on both sides of the upper portion of the base;

[0037] A third mounting plate, disposed between the two second mounting plates;

[0038] A first unloading plate, slidably disposed on the upper parts of the two second mounting plates;

[0039] A second unloading plate is slidably arranged on the upper part of the two third mounting plates, and the upper plane of the second unloading plate is on the same horizontal plane as the upper part of the second mounting plate, and the second unloading plate is arranged opposite to the first unloading plate;

[0040] A linkage belt is arranged on one side of the second mounting plate, and the linkage belt is respectively connected to the first unloading plate and the second unloading plate;

[0041] a third driving motor, disposed on one side of the second mounting plate;

[0042] A third adjusting screw is rotatably disposed on one side of the second mounting plate and connected to an output end of the third driving motor;

[0043] The adjusting block is sleeved on the third adjusting screw and connected with the first unloading plate.

[0044] According to some embodiments, a guide plate is arranged between the two third mounting plates, a V-shaped guide groove is opened on the guide plate, a second connecting rod is slidably arranged in the V-shaped guide groove, and one end of the second connecting rod is connected to the second discharge plate.

[0045] According to some embodiments, a discharge port is provided on one side of one of the protective doors, and an observation window is also provided on one side of the protective door.

[0046] Beneficial effects:

[0047] 1. By setting up sliding protective doors on both sides of the workbench, the protective doors and the workbench can form a closed or semi-closed cavity under the action of the corresponding protective doors, effectively surrounding the printing operation area. This design ensures that harmful gases (such as VOCs) generated during the printing process can be captured in a controlled environment to prevent them from being directly discharged into the workshop or the external environment.

[0048] 2. By arranging a purification mechanism on the upper part of the protective door, and the purification mechanism is located at a key position of the rising path of harmful gases, this layout helps to maximize the contact and treatment of gases escaping from the printing area. Through the action of the purification mechanism, the volatile organic compounds (VOCs) released during the printing process can be effectively captured and treated, thereby improving the purification efficiency, reducing the emission of pollutants, and achieving the concept of green environmental protection.

[0049] Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0051] Figure 1 is a schematic diagram of the present invention;

[0052] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0053] Figure 3 for Figure 2 A three-dimensional cross-sectional view of the purification mechanism shown in;

[0054] Figure 4 for Figure 3 A perspective cutaway view of the filter assembly shown in FIG.

[0055] Figure 5 for Figure 3 A schematic diagram of the electrode purification assembly shown in;

[0056] Figure 6 for Figure 3 A perspective cutaway view of the purification treatment box shown in ;

[0057] Figure 7 for Figure 2 A schematic diagram of the printing mechanism shown in;

[0058] Figure 8 for Figure 2 A schematic diagram of an alternating feeding assembly is shown in;

[0059] Fig. 9 for Figure 8 A schematic diagram of the second unloading plate, the guide plate and the second connecting rod is shown in ;

[0060] Fig.10 for Figure 2 Schematic diagram of the protective door described in .

[0061] In the figure, 1 a workbench, 2 a printing mechanism, 21 a guide rail frame, 22 a slide plate, 221 a slide slot, 23 a telescopic cylinder, 24 a grid frame, 25 a first connecting rod, 26 a second driving motor, 27 a second adjusting screw, 28 a slide rod, 29 a printing head, 3 a protective door, 31 an air collecting port, 32 a discharge port, 33 an observation window, 4 a purification mechanism, 41 a purification treatment box, 411 an air inlet, 412 an air outlet, 42 an exhaust fan, 43 a filter assembly, 431 a mounting block, 432 a filter frame, 433 a first filter plate, 434 a second filter plate, 435 a third Filter plate, 436 first air flow hole, 44 electrode purification assembly, 441 first electrode sheet, 442 second electrode sheet, 443 first mounting plate, 444 first adjusting screw, 445 first drive motor, 45 air cylinder, 46 fourth filter plate, 5 alternating feeding assembly, 51 base, 52 second mounting plate, 53 third mounting plate, 531 guide plate, 532 V-shaped guide groove, 533 second connecting rod, 54 first discharge plate, 55 second discharge plate, 56 linkage belt, 57 third drive motor, 58 third adjusting screw, 59 adjustment block. DETAILED DESCRIPTION

[0062] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0063] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0064] In the description of the present invention, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0065] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0066] Combination Figures 1 to 10 As shown, a green and environmentally friendly printing device for printing includes a workbench 1, a printing mechanism 2, a protective door 3 and a purification mechanism 4.

[0067] The printing mechanism 2 is arranged on the workbench 1; the protective door 3 is slidably arranged on both sides of the workbench 1, and a cavity is formed between the protective door 3 and the workbench 1; the purification mechanism 4 is arranged on the upper part of the protective door 3, and is used to purify the harmful gas generated during the printing process of the packaging box.

[0068] Among them, by arranging slidable protective doors 3 on both sides of the workbench 1, under the action of the corresponding protective doors 3, the protective doors 3 can form a closed or semi-closed cavity together with the workbench 1, effectively surrounding the printing operation area. This design ensures that the harmful gases (such as VOCs) generated during the printing process can be captured in a controlled environment to prevent them from being directly discharged into the workshop or the external environment; by arranging a purification mechanism 4 on the upper part of the protective door 3, and the purification mechanism 4 is located at a key position on the rising path of the harmful gas, this layout helps to maximize the contact and treatment of the gas escaping from the printing area. Through the action of the purification mechanism 4, the volatile organic compounds (VOCs) released during the printing process can be effectively captured and treated, thereby improving the purification efficiency, reducing the emission of pollutants, and achieving the concept of green environmental protection.

[0069] Specifically, the upper part of the protection door 3 is provided with an air collecting port 31, and the purification mechanism 4 is arranged at the air collecting port 31. The purification mechanism 4 includes: a purification treatment box 41, an exhaust fan 42, a filter assembly 43 and an electrode purification assembly 44. The purification treatment box 41 is arranged at the upper part of the protection door 3 and is located at the air collecting port 31. The lower part of the purification treatment box 41 is provided with an air inlet 411 connected to the air collecting port 31, and the upper part of the purification treatment box 41 is provided with an air outlet 412; the exhaust fan 42 is arranged at the air inlet 411; the filter assembly 43 is arranged directly above the exhaust fan 42; and the electrode purification assembly 44 is arranged directly above the filter assembly 43. The filter assembly 43 includes: a mounting block 431, a filter frame 432, a first filter plate 433, a second filter plate 434 and a third filter plate 435. The mounting blocks 431 are arranged on both sides of the purification treatment box 41; the filter frame 432 is clamped between the two mounting blocks 431, and the first filter plate 433, the second filter plate 434 and the third filter plate 435 are arranged in the filter frame 432 from bottom to top, and a plurality of first air flow holes 436 are opened on the first filter plate 433, the second filter plate 434 and the third filter plate 435. The electrode purification assembly 44 is arranged directly above the filter frame 432, and the electrode purification assembly 44 includes: a first electrode sheet 441, a second electrode sheet 442, a first mounting plate 443, a first adjusting screw 444 and a first driving motor 445. The first electrode sheet 441 is arranged directly above the third filter plate 435; the second electrode sheet 442 is slidably arranged directly above the first electrode sheet 441; the first mounting plate 443 is arranged on one side of the purification treatment box 41 and is located between the first electrode sheet 441 and the second electrode sheet 442; the first adjusting screw 444 is rotatably arranged on the first mounting plate 443, the top end of the first adjusting screw 444 passes through the second electrode sheet 442, and extends to the outside of the purification treatment box 41 and is connected to the first driving motor 445, and the first driving motor 445 is arranged at the upper part of the purification treatment box 41.

[0070] Among them, an air collecting port 31 is provided at the upper part of the protective door 3. When the exhaust fan 42 is started, a negative pressure is formed inside the purification treatment box 41, so that the harmful gas generated in the printing operation area is sucked into the purification treatment box 41 through the air collecting port 31. The introduced air first enters the air inlet 411 at the lower part of the purification treatment box 41, and is accelerated and guided to flow upward by the exhaust fan 42 located there. Subsequently, the air flows through the filter assembly 43 installed directly above the exhaust fan 42. The filter assembly includes three layers of filter plates: a first filter plate 433, a second filter plate 434, and a third filter plate 435. The multiple first air flow holes 436 on each layer of the filter plate allow air to circulate while gradually intercepting particles and other impurities of different particle sizes to achieve preliminary purification. The air after preliminary filtration continues to rise and reaches the electrode purification assembly 44 located directly above the filter assembly 43. A strong electric field is formed between the first electrode sheet 441 and the second electrode sheet 442 in the electrode purification assembly 44. When polluted air passes through this area, harmful substances such as VOCs will be ionized and adsorbed onto the charged electrode sheet to further remove harmful components in the air. The second electrode sheet 442 can be adjusted up and down through the cooperation of the first adjustment screw 444 and the first drive motor 445 to ensure the best electric field strength and purification effect. The first drive motor 445 controls the rotation of the first adjustment screw 444, thereby driving the second electrode sheet 442 to slide to adapt to different working conditions or maintenance requirements. The air after multiple purification treatments is finally discharged from the air outlet 412 at the top of the purification treatment box 41. At this time, the content of harmful substances has been greatly reduced, meeting the environmental emission standards.

[0071] By forming a strong electric field between the first electrode sheet 441 and the second electrode sheet 442, harmful substances in the air, such as volatile organic compounds (VOCs), can be effectively ionized and adsorbed onto the charged electrode sheet. This not only improves the removal efficiency of tiny particles and gaseous pollutants, but also ensures the thoroughness of the purification process. The second electrode sheet 442 adopts a sliding design, and is controlled by the first drive motor 445 through the first adjustment screw 444 to move up and down. Such a design allows the distance between the two electrodes to be flexibly adjusted according to actual working conditions (such as gas flow, degree of pollution, etc.), thereby optimizing the electric field strength and ensuring the best purification effect.

[0072] To further illustrate, the first filter plate 433 is a non-woven fabric or a metal mesh porous material, the second filter plate 434 is a granular activated carbon or an activated carbon fiber felt material, and the third filter plate 435 is a HEPA filter paper made of glass fiber and a chemical filter medium containing specific chemical agents.

[0073] Among them, the use of porous materials such as non-woven fabrics or metal mesh as pre-filters can effectively intercept larger particles. This not only reduces the burden on subsequent filter layers, but also extends the service life of the entire filter system. Because if large particles enter the deep filter directly, they may quickly clog the filter material, reduce its working efficiency and shorten the replacement cycle. Granular activated carbon or activated carbon fiber felt materials are used. These materials are known for their huge specific surface area and rich microporous structure, and are particularly suitable for adsorbing gaseous pollutants such as VOCs. VOCs are prevalent in printing inks. They are not only one of the main sources of air pollution, but also may cause harm to human health. Therefore, this layer is designed to efficiently remove these harmful gases and improve air quality. HEPA filter paper made of glass fiber can capture very fine particles (such as PM0.3) to ensure that there are almost no fine particles in the exhaust air. This is crucial to maintaining the cleanliness of the working environment. The medium containing specific chemical agents is used to neutralize or decompose certain chemical pollutants that are difficult to remove by physical methods. For example, some acidic or alkaline gases can pass directly through ordinary filter materials without being effectively removed, but they can be converted into harmless substances through chemical reactions. This design allows the system to not only handle common particulate matter and VOCs, but also deal with specific types of harmful gases, providing a more comprehensive air purification solution.

[0074] Combination Figure 3 As shown, an air bleed cylinder 45 is provided at the upper part of the purification treatment box 41, and a fourth filter plate 46 is provided in the inner cavity of the air bleed cylinder 45. The fourth filter plate 46 is a catalyst-coated filter screen, which is usually coated with precious metals such as platinum, palladium, etc. or other high-efficiency catalyst materials. These catalysts can accelerate chemical reactions at room temperature or lower temperatures, especially promote the oxidation reaction between organic compounds such as VOCs and oxygen. Although the air treated by the first few layers of filtration and electrode purification components has greatly reduced the content of pollutants, a small amount of harmful gases that have not been completely removed may still remain. The catalyst-coated filter screen can deeply oxidize these remaining organic matter and convert them into harmless substances such as carbon dioxide and water, ensuring that the final discharged air quality meets the highest standards.

[0075] Combination Figure 7As shown, the printing mechanism 2 includes: a guide frame 21, a slide plate 22, a telescopic cylinder 23, a grid frame 24, a first connecting rod 25, a second driving motor 26, a second adjusting screw 27, a sliding rod 28 and a printing head 29. The guide frame 21 is vertically arranged on one side of the workbench 1; the sliding plate 22 is slidably arranged on the guide frame 21, and a sliding groove 221 is horizontally opened on the sliding plate 22; the telescopic cylinder 23 is arranged above the guide frame 21, and the output end of the telescopic cylinder 23 is connected to the sliding plate 22; the grid frame 24 is arranged below the sliding plate 22 through the first connecting rod 25; the second driving motor 26 is arranged on one side of the sliding plate 22, and the output end of the second driving motor 26 passes through the sliding plate 22 and extends to the sliding groove 221 to be connected with the second adjusting screw 27, and the second adjusting screw 27 is rotatably arranged in the sliding groove 221; the sliding rod 28 is sleeved on the second adjusting screw 27; the printing head 29 is arranged on one side of the sliding rod 28, and the printing head 29 contacts the grid frame 24.

[0076] Among them, before starting printing, the operator accurately places the packaging box to be printed on the workbench 1. Ensure that the position of the packaging box is aligned with the grid frame 24 so that the subsequent printing process can proceed smoothly. The telescopic cylinder 23 is located above the guide frame 21, and the height of the entire printing mechanism is adjusted by controlling the slide plate 22 to move up and down along the guide frame 21. At this time, the grid frame 24 on the slide plate 22 is suspended below by the first connecting rod 25, ready to contact the surface of the packaging box. The telescopic cylinder 23 drives the slide plate 22 to descend, so that the grid frame 24 gently contacts the surface of the packaging box, but does not apply excessive pressure to avoid damaging the material or affecting the printing quality. The second drive motor 26 is installed on one side of the slide plate 22, and its output end passes through the slide plate 22 and is connected to the slide bar 28 in the slide slot 221 through the second adjusting screw 27. At this time, the printing head 29 on the slide bar 28 has not started the printing action and is in a waiting state. Once the grid frame 24 is properly in contact with the surface of the packaging box, the telescopic cylinder 23 continues to slightly adjust the position of the slide plate 22 to ensure that the pressure between the printing head 29 and the packaging box is uniform and moderate. This step is crucial to ensure the clarity and flatness of the printed pattern. The second drive motor 26 is started to drive the second adjusting screw 27 to rotate, so that the slide bar 28 and the printing head 29 thereon move horizontally along the slide slot 221. The printing head 29 contacts the surface of the packaging box during the movement and applies ink or other printing media according to a predetermined path to complete the printing task. After each printing stroke, the telescopic cylinder 23 lifts the slide plate 22 to separate the grid frame 24 and the printing head 29 from the surface of the packaging box to prevent unnecessary friction or damage when replacing or adjusting the packaging box.

[0077] Combination Figure 2 , Figure 8 and Fig. 9As shown, an alternating loading assembly 5 is arranged below the printing head 29, and the alternating loading assembly 5 includes: a base 51, a second mounting plate 52, a third mounting plate 53, a first discharge plate 54, a second discharge plate 55, a linkage belt 56, a third driving motor 57, a third adjusting screw 58 and an adjusting block 59. The base 51 is arranged on the upper part of the workbench 1; the second mounting plate 52 is arranged on both sides of the upper part of the base 51; the third mounting plate 53 is arranged between the two second mounting plates 52; the first unloading plate 54 is slidably arranged on the upper part of the two second mounting plates 52; the second unloading plate 55 is slidably arranged on the upper part of the two third mounting plates 53, and the upper plane of the second unloading plate 55 is on the same horizontal plane as the upper part of the second mounting plate 52, and the second unloading plate 55 is arranged opposite to the first unloading plate 54; the linkage belt 56 is arranged on one side of the second mounting plate 52, and the linkage belt 56 is respectively connected to the first unloading plate 54 and the second unloading plate 55; the third driving motor 57 is arranged on one side of the second mounting plate 52; the third adjusting screw 58 is rotatably arranged on one side of the second mounting plate 52 and is connected to the output end of the third driving motor 57; the adjusting block 59 is sleeved on the third adjusting screw 58 and is connected to the first unloading plate 54.

[0078] Before printing, the operator places the packaging box to be printed on the first unloading plate 54, starts the third drive motor 57, and the third drive motor 57 drives the adjustment block 59 through the third adjustment screw 58, so that the adjustment block 59 drives the first unloading plate 54 to move below the grid frame 24 until it reaches the designated position for printing. As the first unloading plate 54 moves, the linkage belt 56 simultaneously drives the second unloading plate 55 to move in the opposite direction, so that it moves from the preparation position to the position for loading new packaging boxes. When the packaging box on the first unloading plate 54 is in place, the telescopic cylinder 23 controls the slide plate 22 to descend, so that the grid frame 24 contacts the surface of the packaging box. Subsequently, the second drive motor 26 is started, and the printing head 29 is driven to move horizontally along the slide 221 through the second adjustment screw 27 to complete the printing task. After printing is completed, the telescopic cylinder 23 lifts the slide plate 22 to separate the printing head 29 from the surface of the packaging box. Next, the third driving motor 57 rotates in reverse, and drives the adjusting block 59 through the third adjusting screw 58, so that the first unloading plate 54 returns to the initial position, and the second unloading plate 55 moves to the bottom of the grid frame 24 to prepare for the next round of printing. Since the two unloading plates are used alternately, the material to be printed can be continuously supplied without affecting the printing efficiency.

[0079] Combination Figure 8 and Fig. 9As shown, a guide plate 531 is arranged between the two third mounting plates 53, and a V-shaped guide groove 532 is opened on the guide plate 531. A second connecting rod 533 is slidably arranged in the V-shaped guide groove 532. One end of the second connecting rod 533 is connected to the second discharge plate 55. The V-shaped guide groove provides a precise sliding path for the second connecting rod 533, so that when the first discharge plate 54 and the second discharge plate 55 move, they move in a staggered manner, thereby avoiding the first discharge plate 54 and the second discharge plate 55 from colliding during the movement.

[0080] Combination Fig.10 As shown, a discharge port 32 is provided on one side of one of the protective doors 3, and an observation window 33 is also provided on one side of the protective door 3. The discharge port 32 allows the operator to pass the packaging box or other materials to be printed from the outside or from the inside without fully opening the protective door 3. This is particularly useful for scenes where materials need to be frequently fed in and out, and can significantly improve work efficiency.

[0081] For further explanation, a control panel is provided on one side of the workbench 1 .

[0082] The working mode of the present invention is as follows:

[0083] The operator starts the whole system through the control panel set on one side of the workbench 1, checks whether each component is in the initial position and working state, the third drive motor 57 is in the ready state, the first unloading plate 54 is in the position for loading new packaging boxes, the operator places the packaging box to be printed on the first unloading plate 54, the third drive motor 57 is started, and the adjustment block 59 is driven by the third adjustment screw 58 to move the first unloading plate 54 below the grid frame 24, the telescopic cylinder 23 controls the slide plate 22 to descend along the guide rail frame 21, so that the grid frame 24 lightly contacts the surface of the packaging box, but does not apply excessive pressure to protect the material, and the second drive motor 57 is started. The motor 26 is started, and the slide bar 28 is driven by the second adjusting screw 27, so that the printing head 29 moves horizontally along the slide groove 221 to complete the printing task. At the same time, the linkage belt 56 drives the second unloading plate 55 and under the action of the second connecting rod 533 moving along the trajectory of its V-shaped guide groove 532, the second unloading plate 55 moves from the bottom of the first unloading plate 54 to the initial position of the first unloading plate 54 to wait for the packaging box to be placed. The protective doors 3 on both sides slide closed to form a closed or semi-closed cavity with the workbench 1 to prevent the leakage of harmful gases. The induced fan 42 is started to form a negative pressure in the purification treatment box 41 to attract the gas produced during the printing process. The generated harmful gas enters the purification treatment box through the gas collection port 31, and the gas passes through the first, second and third filter plates 433, 434, 435 composed of non-woven fabric / metal mesh, granular activated carbon / activated carbon fiber felt, and glass fiber HEPA filter paper in turn, gradually removing larger particles and gaseous pollutants. The gas passes through the strong electric field area formed by the first electrode sheet 441 and the second electrode sheet 442, and harmful substances such as VOCs are ionized and adsorbed onto the charged electrode sheet, further removing harmful components in the air. The gas after the first few layers of purification flows through the fourth filter plate 46 coated with precious metals or other high-efficiency catalyst materials. The residual organic matter is deeply oxidized and converted into harmless substances such as carbon dioxide and water. After the brushing is completed, the telescopic cylinder 23 lifts the slide plate 22 to separate the printing head 29 from the surface of the packaging box, and the third drive motor 57 rotates in the opposite direction. The third adjusting screw 58 drives the adjusting block 59 to return the first discharge plate 54 to the initial position toward the grid frame 24. At the same time, the linkage belt 56 drives the second discharge plate 55 and under the action of the second connecting rod 533 moving along the trajectory of its V-shaped guide groove 532, the second discharge plate 55 moves from the bottom of the first discharge plate 54 to the bottom of the grid frame 24 to perform continuous printing processing on the packaging box.

[0084] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A green and environmentally friendly printing device for printing, characterized in that: include: Workbench (1); A printing mechanism (2) is arranged on the workbench (1); A protective door (3) is slidably arranged on both sides of the workbench (1), and a cavity is formed between the protective door (3) and the workbench (1); The purification mechanism (4) is arranged on the upper part of the protection door (3) and is used to purify harmful gases generated during the printing process of the packaging box.

2. The green environmentally friendly printing device for printing according to claim 1, characterized in that: An air collecting port (31) is provided at the upper portion of the protective door (3), and the purification mechanism (4) is arranged at the air collecting port (31). The purification mechanism (4) comprises: A purification treatment box (41) is arranged on the upper part of the protection door (3) and is located at the gas collecting port (31); an air inlet (411) connected to the gas collecting port (31) is opened at the lower part of the purification treatment box (41); and an air outlet (412) is opened at the upper part of the purification treatment box (41); An exhaust fan (42) is disposed at the air inlet (411); A filter assembly (43) is arranged directly above the induced draft fan (42); The electrode purification component (44) is arranged directly above the filter component (43).

3. The green environmentally friendly printing device for printing according to claim 2, characterized in that: The filter assembly (43) comprises: Mounting blocks (431) are arranged on both sides of the purification treatment box (41); A filter frame (432) is clamped between the two mounting blocks (431), and a first filter plate (433), a second filter plate (434) and a third filter plate (435) are sequentially arranged in the filter frame (432) from bottom to top, and a plurality of first air flow holes (436) are provided on the first filter plate (433), the second filter plate (434) and the third filter plate (435).

4. The green environmentally friendly printing device for printing according to claim 3, characterized in that: The first filter plate (433) is a non-woven fabric or a metal mesh porous material, the second filter plate (434) is a granular activated carbon or an activated carbon fiber felt material, and the third filter plate (435) is a HEPA filter paper made of glass fiber and contains a chemical filter medium containing a specific chemical agent.

5. The green and environmentally friendly printing device for printing according to claim 3, characterized in that: The electrode purification component (44) is arranged directly above the filter frame (432), and the electrode purification component (44) comprises: A first electrode sheet (441) is disposed directly above the third filter plate (435); A second electrode sheet (442) is slidably disposed directly above the first electrode sheet (441); A first mounting plate (443) is disposed on one side of the purification treatment box (41) and is located between the first electrode sheet (441) and the second electrode sheet (442); A first adjusting screw (444) is rotatably mounted on the first mounting plate (443); a top end of the first adjusting screw (444) passes through the second electrode sheet (442) and extends to the outside of the purification treatment box (41) and is connected to a first driving motor (445); the first driving motor (445) is disposed at the upper portion of the purification treatment box (41).

6. A green and environmentally friendly printing device for printing according to claim 2 or 4, characterized in that: An air bleed cylinder (45) is arranged at the upper part of the purification treatment box (41), and a fourth filter plate (46) is arranged in the inner cavity of the air bleed cylinder (45), and the fourth filter plate (46) is a catalyst coating filter.

7. The green and environmentally friendly printing device for printing according to claim 1, characterized in that: Printing institutions (2) include: A guide rail frame (21) is vertically arranged on one side of the workbench (1); A slide plate (22) is slidably mounted on the guide rail frame (21), and a slide groove (221) is transversely formed on the slide plate (22); A telescopic cylinder (23) is arranged above the guide rail frame (21), and an output end of the telescopic cylinder (23) is connected to the slide plate (22); A grid frame (24) is disposed below the slide plate (22) via a first connecting rod (25); A second drive motor (26) is disposed on one side of the slide plate (22); an output end of the second drive motor (26) passes through the slide plate (22) and extends into the slide groove (221) to be connected with a second adjusting screw (27); the second adjusting screw (27) is rotatably disposed in the slide groove (221); A sliding rod (28) sleeved on the second adjusting screw rod (27); A printing head (29) is arranged on one side of the sliding rod (28), and the printing head (29) is in contact with the grid frame (24).

8. The green and environmentally friendly printing device for printing according to claim 7, characterized in that: An alternating feeding assembly (5) is arranged below the printing head (29), and the alternating feeding assembly (5) comprises: A base (51) is arranged on the upper part of the workbench (1); A second mounting plate (52) is arranged on both sides of the upper part of the base (51); A third mounting plate (53) is arranged between the two second mounting plates (52); A first unloading plate (54) is slidably disposed on the upper parts of the two second mounting plates (52); A second unloading plate (55) is slidably arranged on the upper parts of the two third mounting plates (53), and the upper plane of the second unloading plate (55) is on the same horizontal plane as the upper part of the second mounting plate (52), and the second unloading plate (55) is arranged opposite to the first unloading plate (54); A linkage belt (56) is arranged on one side of the second mounting plate (52), and the linkage belt (56) is respectively connected to the first unloading plate (54) and the second unloading plate (55); A third driving motor (57) is disposed on one side of the second mounting plate (52); a third adjusting screw (58) rotatably disposed on one side of the second mounting plate (52) and connected to an output end of the third driving motor (57); The adjusting block (59) is sleeved on the third adjusting screw (58) and connected to the first discharge plate (54).

9. The green environmentally friendly printing device for printing according to claim 8, characterized in that: A guide plate (531) is arranged between the two third mounting plates (53), a V-shaped guide groove (532) is provided on the guide plate (531), a second connecting rod (533) is slidably arranged in the V-shaped guide groove (532), and one end of the second connecting rod (533) is connected to the second discharge plate (55).

10. The green environmentally friendly printing device for printing according to claim 9, characterized in that: A discharge port (32) is provided on one side of one of the protective doors (3), and an observation window (33) is also provided on one side of the protective door (3).

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