CN115946448A - Digital printing equipment - Google Patents

Abstract

The application relates to the technical field of printing, and discloses a digital printing device, includes: a case having a feed end and a discharge end; the conveying belt extends from the feeding end to the discharging end and is used for conveying printing stocks; the spray printing head is arranged on the case, positioned above the conveying belt and used for spraying ink to a printing stock for printing; the drying mechanism is arranged at the discharge end of the case and is used for drying a printing finished product; the drying mechanism comprises a drying box, a hot air blowing piece and a suction piece, the drying box is butted with the conveying belt at the discharge end, and the hot air blowing piece is communicated with the air flow of the drying box to blow hot air into the drying box; one end and the stoving case intercommunication of suction piece, the other end are connected with and filter the piece, and suction piece is used for sending into the air current of stoving incasement and filters the purification in filtering the piece. This application plays the harmful gas that can effectively handle the terminal stoving process of lithography apparatus and produce, alleviates the problem of gaseous direct discharge air pollution environment.

Description

Digital printing equipment

Technical Field

The application relates to the technical field of printing, in particular to digital printing equipment.

Background

Digital printing is a brand new printing mode which directly prints computer files on paper and is different from the traditional complicated printing process. Digital printing machine is when printing the printed matter, at first sets for the pattern of waiting to print, and operating personnel adjusts the printing position of pattern and printed matter according to the actual size of printed matter to set for and print quantity, then inside the stock that does not spray with printing ink got into the printing machine by material loading mouth one end, inkjet device carried out inkjet printing to the printed matter according to setting for procedure and pattern, and the printing is accomplished and will be derived the finished product from the discharge gate of the other end and be the form of piling up, treat that the manual work is takied away the finished product of printing completion away.

The natural drying of the printing ink on paper, fabric, film, leather and the like generally requires a long time, the printing ink is easy to blur in the process of natural drying, and the documents are damaged, and particularly for the medium such as the film, the leather and the like, the ink drying time is long.

Some traditional multi-functional digital printing equipment discharge ends have stoving mechanism, through carrying out supplementary stoving to the product after accomplishing the printing process. The existing drying mechanism can cause environmental pollution by generating irritant harmful gas through heating and drying printing ink in the drying process.

Disclosure of Invention

In order to solve the problem that harmful gas is generated to pollute the environment in the drying process after the digital printing of the printing stock in the prior art,

the application provides a digital printing equipment adopts following scheme:

a digital printing apparatus, comprising:

a case having a feed end and a discharge end;

the conveying belt extends from the feeding end to the discharging end and is used for conveying printing stocks;

the spray printing head is arranged on the case, positioned above the conveying belt and used for spraying ink to a printing stock for printing;

the drying mechanism is arranged at the discharge end of the case and is used for drying a printing finished product;

the drying mechanism comprises a drying box, a hot air blowing piece and a suction piece, the drying box is butted with the conveying belt at the discharge end, and the hot air blowing piece is communicated with the drying box through air flow so as to blow hot air into the drying box; one end and the stoving case intercommunication of suction piece, the other end are connected with and filter the piece, suction piece is used for sending into the air current of stoving incasement and filters the purification in filtering the piece.

By adopting the scheme, the suction piece and the filtering piece are arranged at the drying mechanism, so that irritant gas generated by drying can be limited in the drying box and is conveyed to the filtering piece through the suction piece to be effectively treated. In the traditional technical scheme, in the drying process of the printing ink on the printing stock, the generated irritant harmful gas is difficult to avoid to be discharged into the air, so that the environment is polluted or the ink is inhaled by a user. According to the technical scheme, on one hand, the drying box is arranged, so that the printing stock is dried in the drying box, and harmful gas is limited in the drying box; on the other hand, the suction piece is matched with the filter piece for use, harmful irritant gases in the drying box are pumped out and filtered, and therefore the irritant gases are effectively prevented from being discharged into the external environment, and the pollution to the environment is reduced.

Optionally, the stoving case have with feed inlet and discharge gate that the conveyer belt is linked together, it has the stoving area to extend to the discharge gate by the feed inlet to dry the incasement, the inside fixed mounting of stoving incasement portion of stoving area top has the baking lamp, baking lamp work is located the printing finished product on the stoving area with the stoving.

Through adopting above-mentioned scheme, be provided with the stoving area and bake out the lamp in toasting the box, carry out supplementary stoving, further promotion drying efficiency through baking out the lamp to the printing finished product on the stoving area. In the traditional technical scheme, the printing stock is dried simply by a heating mode or hot air blowing to the printing stock, the time for waiting for drying the surface of the printing stock is longer, and the drying efficiency is lower. In the technical scheme, the baking lamp can be positioned above the drying belt to perform ultraviolet irradiation auxiliary drying on the printing stock, so that the drying speed is effectively increased; in the operating condition, can sweep the realization through the cooperation of baking lamp hot-blast when transporting the stock through the area of drying and blow and realize the fast drying to the stock surface, the promotion drying efficiency that is showing.

Optionally, the drying box further comprises a first opening and closing door and a second opening and closing door, the first opening and closing door is located at the feeding hole of the drying box, and the first opening and closing door works to open and close the feeding hole; the second opening and closing door is located at a discharge port of the drying box and works to open and close the discharge port.

By adopting the scheme, the first opening and closing door and the second opening and closing door are respectively and correspondingly arranged at the feeding hole and the discharging hole in the drying direction. In the operating condition, first opening and closing door and second opening and closing door are closed state among the drying process, and first opening and closing door is opened when the stock gets into the stoving case, and the second opening and closing door is opened when the stock is dried the back ejection of compact to make the irritability gas that produces among the drying process can be effectively by spacing in stoving incasement portion, prevent the polluted environment.

Optionally, the drying oven further comprises a discharging rail connected with the conveying belt, wherein two discharging branches are connected to one end, far away from the conveying belt, of the discharging rail, two drying ovens are arranged in parallel in the vertical direction, and the discharging branches are in one-to-one correspondence to feed inlets of the drying ovens; and a turnout is rotatably arranged at the joint of the blanking rail and the blanking branch, and the turnout is rotated to guide the printing stock to any one of the blanking branches.

Through adopting above-mentioned scheme, be provided with unloading rail and two unloading branches, two stoving casees of unloading branch road syntropy two differences respectively. In other technical schemes, because drying needs a certain period, the printed finished product can only be blanked at intervals, and the overall printing efficiency is low. In this application technical scheme, can make adjacent stock get into different stoving incasement in proper order and carry out work, among the operating condition, the conveyer belt can be incessant continuously carries the stock, and holistic work efficiency has been promoted effectively in the work of continuity.

Optionally, the system further comprises a static elimination device, the static elimination device is fixedly installed at the feed end of the case, and the static elimination device is used for blowing air flow carrying positive and negative ions to the conveyor belt.

By adopting the scheme, the electrostatic elimination device is arranged to sweep and remove dust on the printing stock at the feeding end; in actual conditions, dust and other small impurities are easily adhered to a printed material to be printed, the printed material is directly fed into a printing unit, the dust can affect the adhesion of electronic ink, and the defect that the adhesion between a printed image layer and the printed material is easily reduced exists. In some technical schemes, the brush that removes dust sweeps the printed material of feed end and removes dirt, but the dust can be remained to the difficult meeting of brush, leads to the dust to re-adhere to on the printed material, and dust removal effect is not good. In the technical scheme, the static electricity eliminating device is used for blowing and dedusting, and the non-contact dedusting mode can effectively remove dust of the printing stock; on the other hand, probably through electrostatic absorption between stock and the dust, be difficult to get rid of, this application is through sweeping the air current that carries positive and negative ion to can remove dust effectively, guarantee dust removal effect.

Optionally, the static elimination device is provided with a first blowing port, and the first blowing port is obliquely downwards and faces the outer side of the feeding end.

Through adopting above-mentioned scheme, through the decurrent orientation feed end outside of first blowing mouth slope to blow the raise dust to the quick-witted case outside. In some technical schemes, the raised dust generated in the blowing process can fly around to affect the working environment in the case and can be re-adhered to the printing stock, so that the dust removal effect is poor. The utility model provides a first blowing opening is towards the discharge end outside of quick-witted case to can alleviate the problem that the raise dust got into quick-witted incasement portion effectively, guarantee the effect of removing dust.

Optionally, the cleaning device further comprises a cleaning piece, and the cleaning piece horizontally slides in the case along a direction perpendicular to the length direction of the conveying belt; the spray printing head is vertically arranged in the case in a sliding manner, the spray printing head is provided with a working state for carrying out spray printing work and an idle state to be cleaned, the cleaning piece is positioned outside the spray printing head in the working state, and the low end of the spray printing head is lower than the cleaning piece; when the cleaning piece is in an idle state, the lower end of the jet printing head is in butt joint with the cleaning piece in a sliding mode, and the cleaning piece horizontally slides to wipe the lower end of the jet printing head.

By adopting the scheme, the cleaning piece for cleaning the bottom of the jet printing head is arranged, so that the phenomenon that the jet printing head is blocked due to the fact that ink at the bottom of the jet printing head is dried up is effectively prevented. In actual conditions, the ink is sprayed and printed to the printing stock on the conveying belt from the low-position end of the printing head, in the spraying and printing process, the bottom of the printing head inevitably has some ink residues, and the printing head can be blocked after the ink is dried up. Among this application technical scheme, can clean the clearance through the cleaning piece level and spout printer head's low level end, and spout printer head when the operating condition, the cleaning piece is located and spouts the printer head outside and dodge and spout the vertical sliding movement of printer head, has the clearance effect of preferred.

Optionally, the spraying printing head is respectively provided with a horizontal sliding rail arranged horizontally on two sides of the length direction of the conveying belt, the horizontal sliding rails are fixedly mounted on the inner wall of the case, the cleaning piece can be arranged on the two horizontal sliding rails in a sliding manner, and the horizontal sliding rails are used for bearing and guiding the cleaning piece.

Through adopting above-mentioned scheme, be provided with the horizontal slide rail that is used for erectting the cleaning member, can bear the weight of cleaning member effectively when leading the cleaning member. In some technical schemes, a driving cylinder with an output shaft horizontally arranged is fixedly mounted on the inner wall of the case, and the driving cylinder drives the cleaning piece to horizontally slide; however, in the actual working process, the cleaning member needs to be abutted against the lower end of the printing head for wiping, and the bearing capacity is insufficient simply by bearing the cleaning member through the driving cylinder. According to the technical scheme, the cleaning piece is erected on the two transverse sliding rails, the guide effect is achieved, the cleaning head can be effectively borne, and the bearing effect is guaranteed.

Optionally, the cleaning piece includes ball seat and removable joint installation in the cleaning head of ball seat, the ball seat is slided and is installed on the horizontal slide rail, the cleaning head is connected with ball seat ball hinge formula.

Through adopting above-mentioned scheme, the cleaning member is including sliding the cleaning head of installing ball seat and removable joint in the ball seat on horizontal slide rail to make the cleaning head can dismantle the change. In some technical schemes, the cleaning head is usually simply installed on the transverse sliding rail in a sliding manner, and in actual working conditions, the cleaning head needs to be detached for cleaning after being used for a period of time, so that the scheme is inconvenient to detach and clean; according to the technical scheme, the cleaning head is detachably clamped in the ball seat in a ball-hinge type, so that on one hand, the cleaning head is convenient to disassemble, assemble and replace in a clamping mode; on the other hand, the installation of cleaning head ball twist formula in the ball seat to make the cleaning head can follow-up and spout the support of printer head and press and carry out certain rotation, have the laminating effect of preferred to spouting printer head bottom, and then promote the clearance effect that the laminating was cleaned effectively.

Optionally, the ink jet printer further comprises an ink box fixedly installed in the chassis, wherein the ink box is communicated with the ink jet head; be provided with concentration detection meter, water injection pipe and heating member in the printing ink box, the water injection pipe is used for diluting printing ink concentration to the water injection in the printing ink box, the heating member is used for heating printing ink and promotes printing ink concentration, the concentration detection meter is used for detecting printing ink concentration in order to control water injection pipe or heating member work.

By adopting the scheme, the concentration of the ink in the ink box is detected by the concentration detector, and when the concentration of the ink is lower, the concentration of the ink is improved by heating and evaporating the ink; when the printing ink concentration is higher, the concentration of the printing ink is reduced through water injection, so that the concentration stability of supplying the ink to the jet printing head can be ensured, and the printing effect is ensured.

To sum up, the present application includes at least the following beneficial technical effects:

1. the drying mechanism is provided with a suction piece and a filter piece, so that irritant gas generated by drying can be limited in the drying box and conveyed to the filter piece through the suction piece for effective treatment. In the traditional technical scheme, in the drying process of the printing ink on the printing stock, the generated irritant harmful gas is difficult to avoid to be discharged into the air, so that the environment is polluted or the ink is inhaled by a user. According to the technical scheme, on one hand, the drying box is arranged, so that the printing stock is dried in the drying box, and harmful gas is limited in the drying box; on the other hand, the suction piece is matched with the filter piece for use, harmful irritant gas in the drying box is pumped out and filtered, so that the irritant gas is effectively prevented from being discharged into the external environment, and the pollution to the environment is reduced;

2. the static eliminating device is arranged to blow and remove dust on the printing stock at the feeding end; in actual conditions, dust and other small impurities are easily adhered to a printed material to be printed, the printed material is directly fed into a printing unit, the dust can affect the adhesion of electronic ink, and the defect that the adhesion between a printed image layer and the printed material is easily reduced exists. In some technical schemes, the brush that removes dust sweeps the printed material of feed end and removes dirt, but the dust can be remained to the difficult meeting of brush, leads to the dust to re-adhere to on the printed material, and dust removal effect is not good. In the technical scheme, the static electricity eliminating device is used for blowing and dedusting, and the non-contact dedusting mode can effectively remove dust of the printing stock; on the other hand, the printed material and the dust can be adsorbed by static electricity and are difficult to remove, and the air flow carrying positive and negative ions is swept, so that dust can be effectively removed, and the dust removal effect is ensured;

3. the cleaning piece is used for cleaning the bottom of the jet printing head, so that the phenomenon that the ink at the bottom of the jet printing head is dried to cause the blockage of the jet printing head is effectively prevented. In actual working conditions, the ink is sprayed and printed on the printing stock on the conveying belt from the low-position end of the printing head, in the spraying and printing process, the bottom of the printing head inevitably can leave some ink, and the printing head can be blocked after the ink is dried up. In this application technical scheme, can clean the clearance through the cleaning piece level and spout printer head's low level end, and spout printer head when the operating condition, the cleaning piece is located spouts the printer head outside and dodges and spout the vertical sliding motion of printer head, has the clearance effect of preferred.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic overall view of a side wall of a case hidden for showing an internal structure of the case according to the embodiment of the present application;

FIG. 3 is a schematic diagram illustrating the hiding of a conveyor belt for showing the internal structure of the conveyor belt according to the embodiment of the present application;

fig. 4 is a sectional view of the entire structure of the embodiment of the present application.

Description of reference numerals:

1. a chassis; 11. a feeding end; 12. a discharge end; 13. a static eliminating device; 131. a first purge port; 14. a vertical slide rail; 15. a transverse slide rail; 151. avoiding a space;

2. a conveyor belt; 21. a carriage; 22. a conveyor belt; 23. installing a chamber; 24. a first air pump; 25. a lead screw motor; 26. a middle suction pipe; 27. a skirt suction tube;

3. a jet printing head; 31. a sliding body; 32. a jet printing part;

4. a drying mechanism; 41. a drying box; 411. a feed inlet; 412. a discharge port; 413. a first opening and closing door; 414. a second opening and closing door; 415. an air inlet pipe; 416. an air outlet pipe; 42. a hot air purging piece; 421. a second air pump; 422. a heating device; 43. a suction member; 44. drying the belt; 45. a baking lamp;

5. a cleaning member; 51. a ball seat; 52. a cleaning head; 521. a spherical hinge; 522. a circular cleaning portion; 53. a transverse cylinder;

6. an ink cartridge; 61. a water injection pipe;

7. a blanking rail; 71. a blanking branch; 72. a turnout; 73. a lap joint part.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiment in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and therefore the application is not limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The present application is described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses digital printing equipment.

Referring to fig. 1 and 2, a digital printing apparatus includes: case 1, conveyer belt 2, spout printer head 3 and stoving mechanism 4, case 1 has feed end 11 and discharge end 12, and conveyer belt 2 extends to discharge end 12 by feed end 11, and spout printer head 3 and install in the case 1 inside of conveyer belt 2 top, and stoving mechanism 4 is located the discharge end 12 of case 1. The drying mechanism 4 comprises a drying box 41, a hot air blowing piece 42, a suction piece 43 and a filter piece, the drying box 41 is butted with the conveying belt 2 at the discharge end 12, and the hot air blowing piece 42 is communicated with the drying box 41 in an air flow manner so as to blow hot air to dry the printing stock in the drying box 41. The suction member 43 has one end communicating with the drying box 41 and the other end communicating with a filter member (not shown), and the suction member 43 is operative to send the airflow in the drying box 41 into the filter member for filtering and purifying.

Referring to fig. 1 and 2, the feeding end 11 of the cabinet 1 is fixedly provided with a static elimination device 13, the static elimination device 13 is positioned above the conveyer belt 2, and the static elimination device 13 operates to sweep air flow carrying positive and negative ions toward the conveyer belt 2. Specifically, the static eliminator 13 spans the conveyer belt 2 and is fixedly installed on the inner wall of the case 1, the static eliminator 13 is provided with a first blowing port 131, the first blowing port 131 inclines downwards and faces the outer side of the feeding end 11, and the static eliminator 13 blows dust and sundries on the printing materials to the outer side of the case 1.

Referring to fig. 1 and 2, a vertical slide rail 14 is fixedly installed on the inner wall of the case 1, the inkjet head 3 is vertically slidably installed on the vertical slide rail 14, and the inkjet head 3 is connected with a driving cylinder (not shown in the figure) in a transmission manner and works to drive the inkjet head 3 to vertically slide. Specifically, the inkjet head 3 has a sliding body 31 slidably mounted on the vertical slide rail 14 and a inkjet printing portion 32 connected to the sliding body 31, the inkjet printing portion 32 is located below the sliding body 31, and the cross-sectional dimension of the inkjet printing portion 32 is smaller than that of the sliding body 31.

Referring to fig. 2 and 3, the inkjet head 3 is provided with a horizontal slide rail 15 on each side of the length direction of the conveyor belt 2, the horizontal slide rail 15 crosses the conveyor belt 2 along the length direction perpendicular to the length direction of the conveyor belt 2, the horizontal slide rail 15 is fixedly installed on the inner wall of the chassis 1, and the cleaning member 5 for wiping the inkjet printing part 32 is installed on the horizontal slide rail 15 in a sliding manner. The jet printing head 3 has a working state for carrying out jet printing work and an idle state to be cleaned, when in the working state, the cleaning piece 5 is positioned at the outer side of the jet printing head 3, and the low-level end of the jet printing head 3 is lower than the cleaning piece 5; when the device is idle, the lower end of the jet printing head 3 is in sliding contact with the cleaning piece 5, and the cleaning piece 5 horizontally slides to wipe the lower end of the jet printing head 3. Specifically, an avoiding space 151 is provided below the vertical slide rail 14, and in an operating state, the cleaning head 52 slides to be located in the avoiding space 151 to avoid the drop of the print head 3, specifically, in an operating state, the cleaning head 52 is located below the sliding main body and the vertical slide rail 14, and is located outside the print portion 32. It should be noted that, in the embodiment of the present application, the number of the inkjet heads 3 is two, the two inkjet heads 3 are arranged in parallel along the length direction of the conveyer belt 2, and a cleaning member 5 is correspondingly arranged below each inkjet head 3.

Referring to fig. 2 and 4, in particular, the cleaning member 5 includes a ball seat 51, a cleaning head 52 and a transverse cylinder 53, the transverse cylinder 53 is fixedly mounted on the chassis 1, and the ball seat 51 is in transmission connection with the transverse cylinder 53 and is slidably mounted on the transverse slide rail 15. The ball seat 51 has a hemispherical cavity, the cleaning head 52 includes a spherical hinge 521 and a circular cleaning portion 522, the spherical hinge 521 is detachably snap-mounted in the hemispherical cavity of the ball seat 51, and the spherical hinge 521 is connected with the ball seat 51 in a damped ball hinge manner. It should be noted that the circular cleaning portion 522 is a cylindrical structure, and the cross-sectional diameter of the circular cleaning portion 522 is larger than the width of the inkjet printing portion 32 along the length direction of the conveyor belt 2, so that the circular cleaning portion 522 can contact the bottom of the inkjet printing portion 32 to slide and clean. In practice, the cleaning head 52 can be hard-drawn from the ball seat 51 to facilitate removal and replacement.

Referring to fig. 1 and 2, an ink cartridge 6 is further fixedly mounted on the housing 1, the ink cartridge 6 is communicated with the inkjet head 3, and the ink cartridge 6 is operated to supply ink to the inkjet head 3. A concentration detector (not shown), a water injection pipe 61 and a heating element (not shown) are arranged in the ink box 6, the concentration detector and the heating element are fixedly arranged on the bottom wall inside the ink box 6, and the water injection pipe 61 is communicated with the top of the ink box 6. The concentration detection meter is used for detecting the ink concentration and works with control water injection pipe 61 or heating member, and water injection pipe 61 works and dilutes the ink concentration with the interior notes water of injection in ink cartridge 6, and the heating member work promotes the ink concentration with heating evaporation moisture, does not do not describe here any more.

Referring to fig. 3 and 4, in the embodiment of the present application, the conveyor belt 2 includes a conveying frame 21 fixedly installed on the inner wall of the chassis 1 and a conveyor belt 22 rotatably wrapped on the conveying frame 21, the conveyor belt 22 is wrapped on the conveying frame 21 to form an installation chamber 23 inside, and a plurality of through holes are uniformly distributed on the conveyor belt 22. The mounting chamber 23 is internally provided with a suction assembly for sucking towards the conveyor belt 22, which suction assembly operates to suck the substrate on the conveyor belt 22 against the conveyor belt 2 under pressure. Specifically, the suction assembly comprises a first air pump 24, a lead screw motor 25, a middle suction pipe 26 and side edge side suction pipes, the middle suction pipe 26 is fixedly installed on the conveying frame 21 along the length direction of the conveying belt 2, the middle suction pipe 26 is located in the middle of the installation chamber 23, the number of the side edge suction pipes 27 is two, and the two side edge suction pipes 27 can be transversely arranged on two sides of the middle suction pipe 26 in a sliding mode. Specifically, the top of each of the middle suction tube 26 and the side edge suction tube 27 has an upward suction opening, the middle suction tube 26 and the side edge suction tube 27 cooperate to suck so as to stabilize the negative pressure suction of the printing material, and the first air pump 24 is communicated with the middle suction tube 26 and the side edge suction tube 27. The screw motor 25 is fixedly installed on the conveying frame 21, a screw of the screw motor 25 is perpendicular to the length direction of the conveying belt 2 and is horizontally arranged, the two side edge suction pipes 27 are in threaded connection with the screw of the screw motor, the thread turning directions of the two side edge suction pipes 27 are opposite, and the screw motor can drive the two side edge suction pipes 27 to be close to or far away from each other so as to adjust the distance between the two side edge suction pieces 43.

Referring to fig. 3 and 4, the drying box 41 has a feeding port 411 and a discharging port 412 communicated with the conveyor belt 2, a drying belt 44 extends from the feeding port 411 to the discharging port 412 in the drying box 41, and a baking lamp 45 is fixedly installed inside the drying box 41 above the drying belt 44. Specifically, the drying belt 44 can adsorb the printing material and drive the printing material to be transported to the discharge hole 412 through the feed hole 411, and the baking lamp 45 is fixedly installed on the inner wall of the top of the drying box 41, and the light-emitting end faces the drying belt 44 to dry the printing finished product on the drying belt 44. It should be mentioned that the hot air blowing unit 42 includes a second air pump 421 and a heating device 422, the second air pump 421, the heating device 422 and the drying box 41 are sequentially connected, and the air flows to the heating device 422 via the second air pump 421 and flows into the drying box 41 after being heated. In the embodiment of the present application, a detachable filter element is disposed in the filter element, which is not described herein again.

Referring to fig. 3 and 4, a first opening and closing door 413 is slidably installed at a feeding port 411 of the drying box 41, a second opening and closing door 414 is slidably installed at a discharging port 412, cylinders for driving the first opening and closing door 413 and the second opening and closing door 414 to slide are correspondingly arranged on the drying box 41 one by one, the first opening and closing door 413 works to slidably open and close the feeding port 411, and the second opening and closing door 414 works to slidably open and close the discharging port 412. In actual conditions, during the whole process of the operation of the hot air blowing member 42 and the suction member 43, the first opening and closing door 413 and the second opening and closing door 414 are both in a closed state, so as to prevent the irritant gas generated by drying from leaking.

Referring to fig. 3 and 4, the drying oven further comprises a discharging rail 7 connected with the conveyor belt 2, two discharging branches 71 are connected to one end of the discharging rail 7 far away from the conveyor belt 2, two drying ovens 41 are vertically arranged in parallel, and the discharging branches 71 are in one-to-one correspondence to feed inlets 411 of the drying ovens 41; the junction of the blanking rail 7 and the blanking branch 71 is rotatably provided with a turnout 72, and the turnout 72 rotatably works to guide the printing material to any one of the blanking branches 71. Specifically, the blanking rail 7 has a lap joint portion 73, and the switch 72 can lap joint on the lap joint portion 73 to close one of the blanking branches 71, at this time, the switch 72 is flush with the top of the conveyor belt 2 to allow the printing material to slide into the other blanking branch 71. It is worth mentioning that the drying box 41 is provided with an air inlet pipe 415 connected to the heating device 422 and an air outlet pipe 416 connected to the suction member 43, and the air inlet pipe 415 and the air outlet pipe 416 are provided with control valves, which are not shown in the figure.

The implementation principle of the digital printing equipment in the embodiment of the application is as follows: a suction piece 43 and a filter piece are arranged at the drying mechanism 4, and the printing stock is dried in the drying box 41 through the drying box 41, so that harmful gas is limited in the drying box 41; meanwhile, the suction member 43 is used in cooperation with the filter member to extract harmful irritant gases in the drying box 41 and filter the harmful irritant gases, thereby effectively preventing the irritant gases from being discharged into the external environment and reducing the pollution to the environment.

The embodiments of the present invention are preferred embodiments of the present application, and the protection scope of the present application is not limited thereby, wherein like parts are denoted by like reference numerals. Therefore, the method comprises the following steps: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. A digital printing apparatus, comprising:

a case (1) having a feed end (11) and a discharge end (12);

the conveying belt (2) extends from the feeding end (11) to the discharging end (12) and is used for conveying printing stocks;

the spray printing head (3) is arranged on the case (1), positioned above the conveying belt (2) and used for spraying ink to a printing stock;

the drying mechanism (4) is arranged at the discharge end (12) of the case (1) and is used for drying the printed finished product;

the drying mechanism (4) comprises a drying box (41), a hot air blowing piece (42) and a suction piece (43), the drying box (41) is butted with the conveying belt (2) of the discharging end (12), and the hot air blowing piece (42) is communicated with the drying box (41) in an air flow manner so as to blow hot air into the drying box (41); one end of the suction piece (43) is communicated with the drying box (41), the other end of the suction piece is connected with a filtering piece, and the suction piece (43) is used for sending the airflow in the drying box (41) into the filtering piece for filtering and purifying.

2. The digital printing device according to claim 1, wherein the drying box (41) has a feeding port (411) and a discharging port (412) communicated with the conveying belt (2), a drying belt (44) extends from the feeding port (411) to the discharging port (412) in the drying box (41), a baking lamp (45) is fixedly installed inside the drying box (41) above the drying belt (44), and the baking lamp (45) works to dry the printed products on the drying belt (44).

3. A digital printing apparatus according to claim 1, further comprising a first opening and closing door (413) and a second opening and closing door (414), said first opening and closing door (413) being located at a feeding port (411) of said drying box (41), said first opening and closing door (413) being operative to open and close said feeding port (411); the second opening and closing door (414) is positioned at the discharge hole (412) of the drying box (41), and the second opening and closing door (414) works to open and close the discharge hole (412).

4. The digital printing equipment according to claim 3, further comprising a blanking rail (7) connected with the conveyor belt (2), wherein two blanking branches (71) are connected to one end of the blanking rail (7) far away from the conveyor belt (2), two drying boxes (41) are arranged in parallel vertically, and the blanking branches (71) are in one-to-one correspondence to feed inlets (411) of the drying boxes (41); and a turnout (72) is rotatably installed at the joint of the blanking rail (7) and the blanking branch (71), and the turnout (72) rotatably works to guide the printing stock to any one of the blanking branches (71).

5. The digital printing apparatus according to claim 1, further comprising a static eliminator (13), wherein the static eliminator (13) is fixedly installed at the feeding end (11) of the cabinet (1), and the static eliminator (13) is used for purging the air flow carrying the positive and negative ions to the conveyor belt (2).

6. A digital printing apparatus as claimed in claim 5, wherein said static elimination device (13) has a first blow-off opening (131), said first blow-off opening (131) being directed obliquely downwards towards the outside of the feed end (11).

7. A digital printing apparatus according to claim 1, further comprising a cleaning member (5), wherein the cleaning member (5) horizontally slides in the cabinet (1) in a direction perpendicular to the length direction of the conveyor belt (2); the spray printing head (3) is vertically installed in the case (1) in a sliding manner, the spray printing head (3) is provided with a working state for spray printing work and an idle state to be cleaned, the cleaning piece (5) is positioned on the outer side of the spray printing head (3) in the working state, and the low end of the spray printing head (3) is lower than the cleaning piece (5); when the cleaning device is idle, the lower end of the jet printing head (3) is in sliding butt joint with the cleaning piece (5), and the cleaning piece (5) horizontally slides to wipe the lower end of the jet printing head (3).

8. A digital printing apparatus according to claim 7, wherein the printing head (3) is provided with a horizontal sliding rail (15) on each side of the length direction of the conveyor belt (2), the horizontal sliding rails (15) are fixedly installed on the inner wall of the chassis (1), the cleaning member (5) is slidably installed on the two horizontal sliding rails (15), and the horizontal sliding rails (15) are used for carrying and guiding the cleaning member (5).

9. A digital printing apparatus according to claim 8, wherein the cleaning member (5) comprises a ball seat (51) and a cleaning head (52) detachably snap-fitted in the ball seat (51), the ball seat (51) is slidably fitted on the lateral slide rail (15), and the cleaning head (52) is ball-hinged with the ball seat (51).

10. A digital printing apparatus according to claim 1, further comprising an ink cartridge (6) fixedly mounted on the housing (1), said ink cartridge (6) being in communication with said ink jet head (3); be provided with concentration detection meter, water injection pipe (61) and heating member in ink horn (6), water injection pipe (61) are used for diluting printing ink concentration to the interior water injection of ink horn (6), and the heating member is used for heating printing ink and promotes printing ink concentration, and the concentration detection meter is used for detecting printing ink concentration in order to control water injection pipe (61) or heating member work.

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