Flying ink suction device

Abstract

The embodiment of the invention relates to the technical field of printing, and particularly discloses a flying ink suction device which comprises an ink suction mechanism and a cleaning mechanism, the ink suction mechanism comprises a cross rod and a negative pressure assembly, the cross rod is provided with an ink suction cavity and an ink suction hole, the ink suction cavity is communicated with the ink suction hole, and the ink suction hole is used for being arranged corresponding to a spray head. The negative pressure assembly is communicated with the ink absorption cavity and used for enabling the ink absorption cavity to generate negative pressure so as to absorb flying ink near the nozzle through the ink absorption holes, the cleaning mechanism comprises a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are communicated with the ink absorption cavity, and the liquid inlet pipe and the liquid outlet pipe are communicated with the ink absorption cavity. The liquid inlet pipe is used for allowing cleaning liquid to enter the ink absorption cavity, and the liquid outlet pipe is used for allowing liquid in the ink absorption cavity to flow out. The flying ink is adsorbed and collected through the ink adsorption mechanism to reduce the influence of flying ink pollution on printing quality and equipment safety, the ink adsorption mechanism is cleaned through the cleaning mechanism, and the reliability and efficiency of the flying ink adsorption device are improved.

Description

Technical Field

[0001] This application relates to the field of printing technology, and in particular to an ink suction device. Background Technology

[0002] Textile digital printers are devices that use digital inkjet technology to directly print on textile fabrics. Among them, the onepass model, equipped with multiple printhead arrays, can complete full-color printing in a single pass of the fabric, with a printing speed of 30-100 meters per minute, making it a core piece of equipment for industrial mass production.

[0003] However, during the high-frequency ink jetting process, the printhead is affected by ink surface tension, jet pressure fluctuations, and airflow in the workshop environment. A large number of tiny ink droplets fail to adhere precisely to the fabric surface, resulting in ink splatter that spreads to the surrounding area of ​​the printing zone. This ink splatter not only contaminates the fabric and affects product quality, but also splashes onto the metal parts and electronic components of the equipment, corroding and damaging the equipment, causing economic losses. Summary of the Invention

[0004] In view of the above problems, this application provides an ink-removing device that overcomes or at least partially solves the above problems.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide an ink suction device, including an ink suction mechanism and a cleaning mechanism. The ink suction mechanism includes a crossbar and a negative pressure component. The crossbar is provided with an ink suction chamber and an ink suction hole. The ink suction chamber and the ink suction hole are connected. The ink suction hole is configured to correspond to the printhead. The negative pressure component is connected to the ink suction chamber and is used to generate negative pressure in the ink suction chamber to adsorb the ink near the printhead through the ink suction hole. The cleaning mechanism includes an inlet pipe and an outlet pipe. The inlet pipe and the outlet pipe are respectively connected to the ink suction chamber. The inlet pipe is used to allow cleaning liquid to enter the ink suction chamber, and the outlet pipe is used to allow the liquid in the ink suction chamber to flow out.

[0006] In some embodiments, the ink absorption mechanism further includes an ink collection box, which is connected to the crossbar and the negative pressure component respectively, and the ink absorption chamber, the ink collection box and the negative pressure component are connected in sequence.

[0007] In some embodiments, the ink suction device further includes a gas-liquid separation box, which is provided with an inlet hole and an exhaust hole. The inlet hole is connected to the ink collection box, and the exhaust hole is connected to the negative pressure component.

[0008] In some embodiments, the ink collection box is provided with a first drain hole for liquid to flow out of the ink collection box, and / or, the gas-liquid separator is provided with a second drain hole for liquid to flow out of the gas-liquid separator.

[0009] In some embodiments, the negative pressure assembly includes a centrifugal fan that is connected to the ink suction chamber of the crossbar.

[0010] In some embodiments, the number of centrifugal fans is multiple, and the gas-liquid separation box is provided with multiple exhaust ports, each exhaust port being connected to a centrifugal fan in a one-to-one correspondence.

[0011] In some embodiments, the cleaning mechanism further includes a liquid pump connected to the outlet pipe, the liquid pump being used to drive the flow of liquid within the outlet pipe.

[0012] In some embodiments, the cleaning mechanism further includes a liquid outlet box and a first telescopic tube, the first telescopic tube being connected to the crossbar and the liquid outlet box respectively, the liquid outlet box being connected to the liquid outlet pipe, and the ink absorption chamber, the first telescopic tube, the liquid outlet box and the liquid outlet pipe being connected in sequence.

[0013] In some embodiments, the liquid outlet pipe includes a first liquid outlet pipe and a second liquid outlet pipe, wherein the first liquid outlet pipe is connected to the crossbar and the liquid pump respectively, and the second liquid outlet pipe is connected to the liquid outlet box and the liquid pump respectively.

[0014] In some embodiments, there are multiple crossbars, at least a portion of which are connected to the inlet pipe and the outlet pipe; and / or, there are multiple crossbars, and the ink absorption chambers of each crossbar are connected to the ink collection box; and / or, each crossbar includes a main body and a cover plate, the main body having the ink absorption chamber and an opening, the opening communicating with the ink absorption chamber for allowing cleaning fluid to enter and exit the ink absorption chamber, the cover plate for closing the opening, and the cover plate being detachably connected to the main body.

[0015] The beneficial effects of this application embodiment are as follows: Unlike existing technologies, this application embodiment provides an ink-splatter removal device, including an ink-splattering mechanism and a cleaning mechanism. The ink-splattering mechanism includes a crossbar and a negative pressure component. The crossbar is provided with an ink-splattering chamber and an ink-splattering hole, which are connected. The ink-splattering hole is configured to correspond to the printhead. The negative pressure component is connected to the ink-splattering chamber and is used to generate negative pressure in the ink-splattering chamber to adsorb ink splatter near the printhead through the ink-splattering hole. The cleaning mechanism includes an inlet pipe and an outlet pipe, which are respectively connected to the ink-splattering chamber. The inlet pipe is used to allow cleaning fluid to enter the ink-splattering chamber, and the outlet pipe is used to allow the liquid to flow out of the ink-splattering chamber. This application embodiment uses the ink-splattering mechanism to adsorb and collect ink splatter to reduce the impact of ink splatter contamination on print quality and equipment safety, and uses the cleaning mechanism to clean the ink-splattering mechanism, thereby improving the reliability and efficiency of the ink-splatter removal device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0017] Figure 1 This is a perspective view of an ink-absorbing device provided in an embodiment of this application; Figure 2 This is a component exploded view of the crossbar and cleaning mechanism provided in the embodiments of this application; Figure 3 This is a perspective view of the ink collection box, gas-liquid separation box, and negative pressure assembly provided in the embodiments of this application; Figure 4 This is a three-dimensional enlarged view of a gas-liquid separator provided in an embodiment of this application; Figure 5 This is an exploded enlarged view of a gas-liquid separator provided in an embodiment of this application; Figure 6 yes Figure 4 Enlarged sectional view after being cut along section line AA; Figure 7 This is an enlarged cross-sectional view of the gas-liquid separator provided in the embodiments of this application; Figure 8 This is a cross-sectional view of a printing device provided in an embodiment of this application. Detailed Implementation

[0018] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0019] 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 application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0020] Please see Figure 1 The ink suction device 100 includes an ink suction mechanism 1 and a cleaning mechanism 2. The ink suction mechanism 1 is used to suction ink near the printhead. The cleaning mechanism 2 is connected to the ink suction mechanism 1 and is used to clean the ink suction mechanism 1.

[0021] The liquid near the printhead refers to the mixture of ink particles generated during inkjet printing and ink mist formed on the printhead surface due to ink droplet splashing and atomization.

[0022] Regarding the ink-absorbing mechanism 1 described above, please refer to some embodiments. Figure 1 and Figure 2 The ink suction mechanism 1 includes a crossbar 11 and a negative pressure component 12. The crossbar 11 is provided with an ink suction chamber 110 and an ink suction hole 111. The ink suction chamber 110 and the ink suction hole 111 are connected. The ink suction hole 111 is used to correspond to the printhead. The negative pressure component 12 is connected to the ink suction chamber 110. The negative pressure component 12 is used to generate negative pressure in the ink suction chamber 110 so as to adsorb liquid near the printhead through the ink suction hole 111.

[0023] In some embodiments, the crossbar 11 is disposed on one side of the printhead, and the ink suction hole 111 is disposed on the side wall of the crossbar 11 facing the printhead. The crossbar 11 can move synchronously with the printhead to facilitate timely adsorption of ink splatter near the printhead.

[0024] In some embodiments, the crossbar 11 is provided with a plurality of ink-absorbing holes 111, which are arranged sequentially along the length of the crossbar 11 to improve the adsorption efficiency.

[0025] In some embodiments, please refer to Figure 2The crossbar 11 includes a main body 112 and a cover plate. The main body 112 has an ink absorption chamber 110 and an opening 114. The opening 114 communicates with the ink absorption chamber 110. The cover plate is used to close the opening 114 and is detachably connected to the main body 112. The opening 114 is located on the top surface of the main body 112 and can be used to allow cleaning fluid to enter and exit the ink absorption chamber 110 so that the ink absorption chamber 110 can be cleaned when the crossbar 11 is removed.

[0026] In some embodiments, the negative pressure component 12 includes a centrifugal fan 121, which is connected to the ink suction chamber 110 of the crossbar 11. The centrifugal fan 121 is used to draw air from the ink suction chamber 110 to form a pressure difference, which drives the liquid near the printhead to be quickly sucked into the ink suction chamber 110 through the ink suction hole 111.

[0027] In some embodiments, please refer to Figure 2 and Figure 3 The ink absorption mechanism 1 also includes an ink collection box 13, which is connected to the crossbar 11 and the negative pressure component 12. The ink absorption chamber 110, the ink collection box 13, and the negative pressure component 12 are connected in sequence. The ink collection box 13 is used to collect ink and perform gas-liquid separation on the ink flow.

[0028] In some embodiments, please refer to Figure 3 The ink collection box 13 is provided with a first drain hole 131, which is used to allow the liquid in the ink collection box 13 to flow out, so as to improve the utilization rate of the ink collection box 13 and improve the working efficiency.

[0029] In some embodiments, please refer to Figure 2 and Figure 3 The ink absorption mechanism 1 also includes a gas-liquid separation box 14, which is provided with an inlet 1410 and an exhaust 1411. The inlet 1410 is connected to the ink collection box 13, and the exhaust 1411 is connected to the negative pressure component 12. After the ink flow undergoes preliminary gas-liquid separation in the ink collection box 13, it enters the gas-liquid separation box 14 for secondary gas-liquid separation, further reducing the risk of ink flowing into the negative pressure component 12 through the exhaust 1411, thus reducing the risk of ink causing corrosion and damage to the negative pressure component 12.

[0030] Please see Figures 4 to 6 The gas-liquid separator 14 includes a housing 141 and a separation assembly 142, which is disposed within the housing 141. The housing 141 has an inlet 1410 and an outlet 1411. The inlet 1410 allows the inkjet gas stream to enter the housing 141. The separation assembly 142 is disposed between the inlet 1410 and the outlet 1411. The separation assembly 142 allows gas in the inkjet gas stream to pass through while preventing liquid from passing through, thereby achieving gas-liquid separation. The gas in the inkjet gas stream after passing through the separation assembly 142 flows out of the housing 141 through the outlet 1411.

[0031] Regarding the aforementioned housing 141, please refer to some embodiments. Figures 4 to 6 The housing 141 is provided with a cavity 140, which includes a first cavity 1401 and a second cavity 1402. The first cavity 1401 communicates with the inlet hole 1410, and the second cavity 1402 communicates with the exhaust hole 1411. The first cavity 1401 and the second cavity 1402 are separated by a separation component 142. The inlet hole 1410 is located at one end of the housing 141 along the length x direction of the housing 141, and the length x direction of the housing 141 is perpendicular to the height z direction of the housing 141.

[0032] In some embodiments, the inlet hole 1410 and the outlet hole 1411 are located at the two ends of the housing 141 along the length x of the housing 141, forming an airflow path along the length x of the housing 141, which helps to reduce turbulence and improve the stability of gas-liquid separation.

[0033] It is understood that in some embodiments, the vent 1411 may also be located on the side wall of the housing 141 along the width direction y or on the top wall of the housing 141, depending on the actual application requirements. The length direction x, width direction y, and height direction z of the housing 141 are mutually perpendicular, and these directions are not limited to the length or proportion of the housing 141, but are merely structural reference directions used to distinguish different orientations of the housing 141.

[0034] In some embodiments, there are multiple exhaust holes 1411, all of which communicate with the second chamber 1402. The multiple exhaust holes 1411 allow for faster and more uniform discharge of gas from the second chamber 1402, which helps reduce airflow resistance within the second chamber 1402. When the exhaust holes 1411 are connected to the negative pressure assembly 12, the arrangement of the multiple exhaust holes 1411 allows for uniform distribution of negative pressure suction within the second chamber 1402, improving the efficiency and stability of gas-liquid separation. At least a portion of the multiple exhaust holes 1411 are located on one side of the housing 141. In some examples, the multiple exhaust holes 1411 are located at the end of the housing 141 along its length x, away from the inlet hole 1410.

[0035] In some embodiments, please refer to Figure 6 and Figure 7 The housing 141 is also provided with a second drain hole 1412, which communicates with the first chamber 1401. The second drain hole 1412 is used to allow liquid in the inkjet gas flow to flow out of the first chamber 1401, thereby reducing the accumulation of liquid in the housing 141 and improving the utilization efficiency of the gas-liquid separator 14. In some examples, the second drain hole 1412 is located on the bottom wall of the housing 141.

[0036] In some embodiments, please refer to Figure 5 The enclosure 141 includes a main enclosure 1413 and a cover plate 1414. The cover plate 1414 covers the main enclosure 1413 to form a cavity 140. The cover plate 1414 is detachably connected to the main enclosure 1413 to facilitate cleaning and maintenance of the interior of the enclosure 141.

[0037] In some embodiments, please refer to Figure 6 The housing 141 also includes a support foot 1415, which is disposed on or near the bottom wall of the housing 141. The end of the support foot 1415 facing away from the bottom wall is used to abut against the placement surface of the housing 141. The support foot 1415 creates a certain space between the housing 141 and the placement surface, which facilitates the connection of the external pipe to the second drain hole 1412.

[0038] Regarding the aforementioned separation component 142, please refer to [link / reference] in some embodiments. Figure 5 and Figure 6 The separation component 142 is disposed in the cavity 140. Along the direction from one end of the housing 141 where the inlet hole 1410 is located to the opposite end, the distance between the separation component 142 and the bottom surface of the cavity 140 gradually decreases. That is, the separation component 142 is inclined towards the inlet hole 1410, so that when the ink-flowing gas enters the first cavity 1401 from the inlet hole 1410, it first impacts the inclined surface of the separation component 142, serving as a buffer and guide. The inclined arrangement of the separation component 142 towards the inlet hole 1410 also increases the contact area between the ink-flowing gas and the separation component 142, which is beneficial for enhancing the gas-liquid separation effect.

[0039] It should be noted that the top and bottom walls of the housing 141, as well as the top and bottom surfaces of the cavity 140, refer to the two opposite surfaces along the height direction z of the housing 141.

[0040] In some embodiments, please refer to Figure 5 and Figure 7 The separation component 142 is detachably connected to the housing 141. The housing 141 is provided with a mounting hole 1417, which communicates with the cavity 140. The mounting hole 1417 allows the separation component 142 to enter and exit the cavity 140, facilitating the installation, replacement, and maintenance of the separation component 142. In some examples, the mounting hole 1417 extends along the inclined direction of the separation component 142 and is located on one side wall of the housing 141 along the width direction y of the housing 141.

[0041] In some embodiments, the separation assembly 142 includes a filter (not shown) and a support 1421, the support 1421 being detachably connected to the housing 141. The filter is detachably mounted on the support 1421, allowing for independent disassembly and maintenance of the filter and support 1421, reducing usage costs and operational complexity. The filter has multiple pores, the diameter of which is smaller than the diameter of liquid particles in the inkjet gas flow and larger than the diameter of gas molecules in the inkjet gas flow, allowing gas to pass through while preventing liquid from passing through, thereby achieving gas-liquid separation.

[0042] In some embodiments, please refer to Figure 5 The support 1421 includes an annular frame 1422 and a mesh structure 1423. The annular frame 1422 surrounds the mesh structure 1423. The mesh structure 1423 has multiple through holes, which are square or round, and the area of ​​the through holes is larger than the area of ​​the filter holes. The filter sheet at least covers the mesh structure 1423. The mesh structure 1423 not only supports the filter sheet, reducing the risk of deformation or damage to the filter sheet under the impact of the ink flow, but also plays a preliminary guiding and dispersing role for the ink flow. In use, when the ink flow passes through the mesh structure 1423, the mist-like ink will condense into ink droplets on the surface of the mesh structure 1423 and fall to the bottom of the first chamber 1401 under the action of gravity.

[0043] In some embodiments, there are two supports 1421, and the filter element is detachably disposed between the two supports 1421. The two supports 1421 clamp and fix the filter element, improving structural stability. In some examples, one end of one support 1421 is rotatably connected to one end of the other support 1421. In other examples, the two supports 1421 are connected by a locking block and a locking slot.

[0044] In some embodiments, at least one bracket 1421 is provided with a handle 1424 on the side wall opposite to the cavity 140. The handle 1424 is used for the operator to hold, which facilitates the quick disassembly and retrieval of the separation component 142.

[0045] In some embodiments, please refer to Figure 6 and Figure 7 The inner wall of the cavity 140 is provided with a guide groove 1418, which communicates with the mounting hole 1417. The end of the bracket 1421 is located in the guide groove 1418, and the end of the bracket 1421 can slide along the guide groove 1418, thereby providing guidance for the assembly and disassembly of the separation component 142 and improving the smoothness of the separation component 142 entering and exiting the cavity 140. At the same time, the guide groove 1418 also fixes and restricts the position of the separation component 142 in the cavity 140, reducing the risk of the separation component 142 shaking or shifting under the impact of the ink flow, and enhancing the effect and stability of gas-liquid separation.

[0046] In some embodiments, the cavity 140 is provided with two guide grooves 1418, which are located on opposite inner walls of the cavity 140 and communicate with mounting holes 1417. The ends of the support 1421 at opposite ends are respectively disposed in the two guide grooves 1418, allowing the ends of the support 1421 to slide along the corresponding guide grooves 1418. The two guide grooves 1418 further improve the accuracy and stability of the separation assembly 142 during assembly and disassembly. In some examples, the two guide grooves 1418 are located on opposite inner walls of the cavity 140 along the length x of the housing 141 and along the height z of the housing 141, respectively, close to the top and bottom surfaces of the cavity 140. This allows the separation assembly 142 to be positioned diagonally within the housing 141, optimizing the spatial layout within the cavity 140, increasing the contact area between the ink flow and the separation assembly 142, and extending the flow path of the liquid along the separation assembly 142.

[0047] In some embodiments, please refer to Figure 6 and Figure 7 The housing 141 also includes a support plate 1416, which is disposed in the cavity 140. One end of the support plate 1416 is fixed to the side wall of the housing 141 along the length x of the housing 141, away from the inlet hole 1410. The other end of the support plate 1416 is provided with a guide groove 1418. The support plate 1416 is spaced apart from the bottom surface of the cavity 140 to reduce the contact between the separation component 142 and the liquid on the bottom surface of the cavity 140.

[0048] In some embodiments, please refer to Figure 4 and Figure 5 The housing 141 is provided with a fixing hole 1419, which is adjacent to the mounting hole 1417 and is connected to the outside.

[0049] In some embodiments, the gas-liquid separator 14 further includes a fastener (not shown), one end of which is used to engage with a fixing hole 1419, and the other end of which is provided with an annular boss for abutting against the side of the separation assembly 142 facing outward, thereby fixing the separation assembly 142 to the housing 141. In some examples, the fastener is a screw, and the fixing hole 1419 is a threaded hole, with the fastener threaded into the fixing hole 1419. In other examples, one end of the fastener is interference-fitted with the fixing hole 1419.

[0050] In some embodiments, please refer to Figure 4 and Figure 5The gas-liquid separator 14 also includes an adjusting shim 143. The adjusting shim 143 has an oblong hole 1430. The adjusting shim 143 is fitted onto the fixing member and is located between the housing 141 and the annular boss. The adjusting shim 143 abuts against the side surface of the separation assembly 142 facing the first cavity 1401. The adjusting shim 143 is used to enhance the locking effect of the fixing member and adjust the height of the separation assembly 142 to improve the adaptability of the assembly. When there is a slight deviation in the installation angle or height of the separation assembly 142, the operator can loosen the fixing member and move the adjusting shim 143 along the extension direction of the oblong hole 1430 to drive the separation assembly 142 to perform a small-range position correction without having to disassemble and reassemble the entire assembly, thus improving the debugging efficiency.

[0051] In some embodiments, please refer to Figure 3 There are multiple crossbars 11, and the ink absorption chambers 110 of each crossbar 11 are connected to the ink collection box 13, which helps to reduce the number of connecting pipes and simplify the structure. The ink collection box 13 is provided with multiple connecting through holes 132. Along the length of the crossbar 11, both ends of the ink absorption chambers 110 are connected to the connecting through holes 132 through flexible hoses.

[0052] In some embodiments, the number of centrifugal fans 121 is multiple. The gas-liquid separation chamber 14 is provided with multiple exhaust ports 1411, each connected to a centrifugal fan 121. Multiple centrifugal fans 121 provide a stable negative pressure field distribution and improve the flexibility of negative pressure regulation. Furthermore, connecting multiple centrifugal fans 121 to the same gas-liquid separation chamber 14 simplifies the structure.

[0053] In some embodiments, the cleaning mechanism 2 includes an inlet pipe and an outlet pipe (not shown). The inlet pipe and the outlet pipe are respectively connected to the ink absorption chamber 110. The inlet pipe is used to allow the cleaning liquid to enter the ink absorption chamber 110, and the outlet pipe is used to allow the liquid in the ink absorption chamber 110 to flow out. In this way, the accumulated ink in the ink absorption chamber 110 is diluted and discharged by the cleaning liquid, thereby reducing the risk of blockage of the ink absorption hole 111 and negative pressure attenuation.

[0054] It should be noted that cleaning solution refers to a liquid that is compatible with the ink used in printing equipment, such as water.

[0055] In some embodiments, please refer to Figure 1 and Figure 2 The cleaning mechanism 2 also includes a liquid pump 21, which is connected to the liquid outlet pipe. The liquid pump 21 is used to drive the flow of liquid in the liquid outlet pipe to drive the cleaning liquid mixed with ink in the ink absorption chamber 110 to be discharged quickly.

[0056] In some embodiments, the liquid pump 21 is an impeller motor.

[0057] In some embodiments, please refer to Figure 1 and Figure 2 The cleaning mechanism 2 also includes an outlet box 22 and a first telescopic tube 23. The first telescopic tube 23 is connected to the crossbar 11 and the outlet box 22, respectively. The outlet box 22 is connected to the outlet pipe. The ink absorption chamber 110, the first telescopic tube 23, the outlet box 22, and the outlet pipe are connected in sequence. The first telescopic tube 23 is stretchable and flexible, which helps to reduce the problem of pipe damage caused by stretching and bending. The outlet box 22 is used as a transfer and buffer. After the cleaning waste liquid in the ink absorption chamber 110 flows into the outlet box 22 through the first telescopic tube 23, it can be temporarily buffered before being stably extracted by the liquid pump 21 through the outlet pipe, improving the continuity and stability of the cleaning waste liquid discharge.

[0058] In some embodiments, the discharge pipe includes a first discharge pipe and a second discharge pipe. The first discharge pipe is connected to the crossbar 11 and the liquid pump 21, respectively. The second discharge pipe is connected to the discharge box 22 and the liquid pump 21, respectively. This dual discharge pathway improves the efficiency and effectiveness of cleaning wastewater discharge.

[0059] In some embodiments, please refer to Figure 1 and Figure 2 The cleaning mechanism 2 also includes an adapter box 24, which is connected to the inlet of the liquid pump 21. The adapter box 24 is also provided with a first adapter 241 and a second adapter 242. A third adapter 115 is provided at the end of the crossbar 11, which is connected to the first adapter 241 through a first outlet pipe. The outlet box 22 is provided with a fourth adapter 221, which is connected to the second adapter 242 through a second outlet pipe. The cleaning waste liquid from the ink absorption chamber 110 is transmitted to the adapter box 24 through the first outlet pipe and the second outlet pipe, and then discharged through the outlet of the liquid pump 21.

[0060] In some embodiments, please refer to Figure 1 and Figure 2 The cleaning mechanism 2 also includes an inlet box 25 and a second telescopic tube 26, which are connected in sequence to the ink absorption chamber 110 of the crossbar 11. The inlet tube includes a first inlet tube and a second inlet tube. The first inlet tube is connected to the ink absorption chamber 110 of the crossbar 11, and the second inlet tube is connected to the inlet box 25.

[0061] In some embodiments, along the length of the crossbar 11, the first telescopic tube 23 and the second telescopic tube 26 are respectively connected to both ends of the crossbar 11.

[0062] In some embodiments, the first telescopic tube 23 and the second telescopic tube 26 are threaded tubes of the same material and specifications. The inlet box 25 and the outlet box 22 are identical boxes, but different plugs are configured to adapt to different functional requirements for inlet and outlet liquids, thereby reducing costs.

[0063] In some embodiments, at least a portion of the multiple crossbars 11 are connected to the inlet pipe and the outlet pipe, depending on the application requirements, to improve practicality. For the crossbars 11 connected to the inlet pipe and the outlet pipe, the crossbars 11 communicate with the connecting through-hole 132 of the ink collection box 13 through the first through-hole 251 of the inlet box 25 and the second through-hole 222 of the outlet box 22. For the crossbars 11 not connected to the inlet pipe and the outlet pipe, a third through-hole 116 is provided on the bottom surface of both ends of the crossbar 11 along the length direction of the crossbar 11, and the third through-hole 116 communicates with the through-hole of the ink collection box 13.

[0064] In some embodiments, there are four crossbars 11. Two crossbars 11 are configured on a printing carriage, wherein one crossbar 11 is connected to the inlet pipe and the outlet pipe respectively, and the other crossbar 11 is not connected to the inlet pipe and the outlet pipe. The other crossbar 11 is located on the side of the printing carriage near the maintenance channel, so that the other crossbar 11 can be easily disassembled and cleaned.

[0065] In some embodiments, both the liquid pump 21 and the centrifugal fan 121 are connected to the control system of the printing equipment 200 to adjust the working state of the cleaning mechanism 2 and the ink suction mechanism 1 according to the operating conditions of the printing equipment 200. For example, when the printing equipment 200 starts the inkjet printing process, the control system will simultaneously turn on the centrifugal fan 121 to absorb the splashed ink from the printhead in real time; at this time, the liquid pump 21 remains off to prevent the cleaning liquid from entering the ink suction chamber 110 and affecting the ink collection effect. When the printing equipment 200 completes a set of printing tasks and enters a short pause interval, the control system will first turn off the centrifugal fan 121 and then start the liquid pump 21 to inject cleaning liquid into the ink suction chamber 110 through the liquid inlet pipe, using the cleaning liquid to dilute the ink accumulated in the chamber, and then extract the waste liquid through the liquid outlet pipe to complete a quick cleaning; after cleaning, the liquid pump 21 stops working, and the centrifugal fan 121 is ready again to prepare for the next set of printing tasks.

[0066] In this embodiment, the ink splatter removal device 100 includes an ink splatter removal mechanism 1 and a cleaning mechanism 2. The ink splatter removal mechanism 1 includes a crossbar 11 and a negative pressure component 12. The crossbar 11 is provided with a connected ink splatter removal chamber 110 and an ink splatter removal hole 111. The ink splatter removal hole 111 is configured to correspond to the printhead. The negative pressure component 12 is used to generate negative pressure in the ink splatter removal chamber 110 to adsorb ink splatter near the printhead through the ink splatter removal hole 111, thereby collecting the ink splatter, reducing the contamination of the printed pattern by ink splatter, improving the clarity and yield of the printed product, and reducing the damage and malfunctions caused by ink splatter adhering to the printhead and other components. The cleaning mechanism 2 includes an inlet pipe and an outlet pipe, which are respectively connected to the ink splatter removal chamber 110. The cleaning liquid enters the ink splatter removal chamber 110 from the inlet pipe, dilutes the ink in the ink splatter removal chamber 110, and then flows out from the outlet pipe to clean the ink splatter removal chamber 110, remove accumulated ink, and improve the adsorption efficiency and service life of the ink splatter removal device 100.

[0067] This application also provides 200 embodiments of printing equipment; please refer to [link / reference]. Figure 8 The printing equipment 200 includes the ink suction device 100 described above. The structure and function of the ink suction device 100 can be found in the above embodiments, and will not be described in detail here.

[0068] In some embodiments, the printing apparatus 200 further includes a first printing carriage 3 and a second printing carriage 4, both of which are disposed above the conveyor belt 5 carrying the printing media and are arranged sequentially along the conveying direction of the conveyor belt 5. A nozzle array 6 is disposed on the bottom surface of both the first printing carriage 3 and the bottom surface of both the first printing carriage 3 and the second printing carriage 4. Two crossbars 11 are respectively disposed on the bottom surface of the first printing carriage 3 and the second printing carriage 4, and the crossbars 11 are disposed on one side of the nozzle array 6. An adapter box, a liquid pump 21, an ink collection box 13, a gas-liquid separator 14, and a centrifugal fan 121 are all disposed below the conveyor belt 5.

[0069] In some embodiments, a maintenance passage is provided between the first printing carriage 3 and the second printing carriage 4. This maintenance passage is used by operators to inspect, debug, and perform routine maintenance on components such as the printing carriages and the ink suction device 100. On the first printing carriage 3, a crossbar 11 near the maintenance passage is detachably installed. On the second printing carriage 4, an ink scraper 7 is provided on the side away from the maintenance passage. On the second printing carriage 4, the crossbar 11 near the ink scraper 7 can move with the ink scraper 7, and the crossbar 11 is detachably connected to the ink scraper 7. When the crossbar 11, moving with the ink scraper 7, moves to the vicinity of the maintenance passage, it can be removed for cleaning, which helps reduce costs.

[0070] In some embodiments, the printing equipment 200 further includes a detection device 8, which is located on the side of the first printing carriage 3 away from the maintenance channel. The detection device 8 is used to detect whether there are defects such as curling edges or debris in the printing medium, so as to deal with them in time and reduce the risk of damaging the printhead.

[0071] In this embodiment, the printing equipment 200 uses the ink suction device 100 to remove ink splatter, thereby reducing the risks of printing media contamination and equipment failure caused by ink splatter and improving the reliability and practicality of the printing equipment 200.

[0072] It should be noted that while preferred embodiments of this application are provided in the specification and accompanying drawings, this application can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this application; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this application. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this application's specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An ink sucking device characterized by comprising: The ink suction mechanism comprises a crossbar and a negative pressure assembly, the crossbar is provided with an ink suction cavity and an ink suction hole, the ink suction cavity and the ink suction hole are communicated, the ink suction hole is arranged corresponding to the ink jet head, the negative pressure assembly is communicated with the ink suction cavity, and the negative pressure assembly is used to generate negative pressure in the ink suction cavity to adsorb the flying ink near the ink jet head through the ink suction hole. The cleaning mechanism comprises an inlet pipe and an outlet pipe, the inlet pipe and the outlet pipe are respectively communicated with the ink suction cavity, the inlet pipe is used for the cleaning liquid to enter the ink suction cavity, and the outlet pipe is used for the liquid in the ink suction cavity to flow out.

2. The flying ink suction device according to claim 1, wherein the ink suction mechanism further comprises an ink collecting box, the ink collecting box is connected with the crossbar and the negative pressure assembly respectively, and the ink suction cavity, the ink collecting box and the negative pressure assembly are communicated in sequence. The flying ink suction device further comprises a gas-liquid separation box, the gas-liquid separation box is provided with an inlet hole and an exhaust hole, the inlet hole is communicated with the ink collecting box, and the exhaust hole is communicated with the negative pressure assembly. The ink collecting box is provided with a first liquid outlet hole, and the first liquid outlet hole is used for the liquid in the ink collecting box to flow out; and / or 3. The device of claim 2, wherein , The gas-liquid separation box is provided with a second liquid outlet hole, and the second liquid outlet hole is used for the liquid in the gas-liquid separation box to flow out.

4. The device of claim 3, wherein , The negative pressure assembly comprises a centrifugal fan, and the centrifugal fan is communicated with the ink suction cavity of the crossbar.

6. The flying ink suction device according to claim 5, wherein the number of the centrifugal fans is multiple; and 5. The device of claim 3, wherein , The gas-liquid separation box is provided with multiple exhaust holes, and the exhaust holes are connected with the centrifugal fans one by one. The cleaning mechanism further comprises a liquid pump, the liquid pump is connected with the outlet pipe, and the liquid pump is used to push the liquid in the outlet pipe to flow.

8. The flying ink suction device according to claim 7, wherein the cleaning mechanism further comprises an outlet box and a first telescopic pipe, the first telescopic pipe is connected with the crossbar and the outlet box respectively, the outlet box is connected with the outlet pipe, and the ink suction cavity, the first telescopic pipe, the outlet box and the outlet pipe are communicated in sequence.

9. The flying ink suction device according to claim 8, wherein the outlet pipe comprises a first outlet pipe and a second outlet pipe, the first outlet pipe is connected with the crossbar and the liquid pump respectively, and the second outlet pipe is connected with the outlet box and the liquid pump respectively.

7. The device of any one of claims 1-6, wherein , 10. The flying ink suction device according to any one of claims 2-6, wherein the number of the crossbars is multiple, at least part of the multiple crossbars is connected with the inlet pipe and the outlet pipe; and / or The number of the crossbars is multiple, and the ink suction cavities of the multiple crossbars are all communicated with the ink collecting box; and / or The crossbar comprises a main rod body and a cover plate, the main rod body is provided with the ink suction cavity and an opening, the opening is communicated with the ink suction cavity, the opening is used for the cleaning liquid to enter or exit the ink suction cavity, the cover plate is used to close the opening, and the cover plate is detachably connected with the main rod body. ​ ​ ​ ​ ​ ​

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