Printing mechanism and printing apparatus

Abstract

The embodiment of the present application relates to the technical field of printing equipment, and particularly relates to a printing mechanism and a printing equipment, the printing mechanism comprising a support, a jet printing module and a first maintenance mechanism. The jet printing module comprises a jet printing head, the jet printing head is installed on the support, and the jet printing head is used for jet printing work in a first direction. The first maintenance mechanism comprises a scraping sheet, a scraping plate base and a scraping plate driving module, the scraping sheet is installed on one side of the scraping plate base facing the jet printing head, the scraping plate driving module is installed on the side of the scraping plate base away from the scraping sheet, the scraping plate driving module can drive the scraping plate base to move in a second direction and / or a third direction, and the scraping sheet is used for scraping ink accumulated on the jet printing head. The first direction, the second direction and the third direction are perpendicular to each other. Through the above structure, when it is necessary to clean the ink accumulated on the jet printing head, the scraping plate driving module drives the scraping plate base to move, so that the scraping sheet corresponds to the jet printing head. The scraping plate driving module indirectly drives the scraping sheet to scrape the ink accumulated on the jet printing head, so as to clean the jet printing head.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of printing equipment, in particular to a printing mechanism and a printing equipment. BACKGROUND

[0002] The digital printing equipment, also known as universal flatbed printing equipment or arc surface printing equipment, can print any material. The digital printing equipment prints the surface image of the material without directly contacting the object, ensuring the integrity of the printed object. The printing and dyeing are performed by ink jetting, which will not cause deformation and other phenomena due to heat and pressure. The digital printing equipment uses the direct output printing method of a computer and does not need to make any preparation for printing work in the early stage. The digital printing equipment needs to install a high-precision inkjet head to enable it to spray high-precision and high-complexity patterns.

[0003] The inventors found that, at present, after the high-precision inkjet head completes the ink jetting work, ink and impurities often exist at the inkjet head, which needs to be cleaned and maintained. SUMMARY

[0004] Embodiments of the present application provide a printing mechanism and a printing equipment, which can improve the current situation that the direct contact between the wiper and the inkjet head during cleaning of the inkjet head of the digital printing equipment easily damages the inkjet head and affects the ink jetting accuracy of the high-precision inkjet head.

[0005] To solve the above technical problems, one technical solution adopted by the present application is to provide a printing mechanism, which comprises a support, an inkjet module and a first maintenance mechanism. The inkjet module comprises an inkjet head, the inkjet head is installed on the support, and the inkjet head is used for ink jetting printing work in a first direction. The first maintenance mechanism comprises a wiper, a scraper base and a scraper driving module. The wiper is installed on one side of the scraper base facing the inkjet head. The scraper driving module is installed on the side of the scraper base away from the wiper. The scraper driving module can drive the scraper base to move in a second direction and / or a third direction. The wiper is used to scrape off the ink on the inkjet head. The first direction, the second direction and the third direction are perpendicular to each other in pairs.

[0006] Optionally, the scraper base comprises a first movement base and a second movement base stacked in the first direction. The scraper driving module comprises a first movement assembly and a second movement assembly. The first movement assembly drives the second movement base to move in the second direction relative to the support. The second movement assembly drives the first movement base to move in the third direction relative to the second movement base.

[0007] Optionally, the first maintenance mechanism further comprises a waste ink collecting mechanism, the waste ink collecting mechanism comprising a first waste ink box, a second waste ink box and a connecting pipe, the first waste ink box being mounted on the second moving base, the second waste ink box being mounted on the support, one end of the connecting pipe being connected to the bottom of the first waste ink box and the other end of the connecting pipe extending into the second waste ink box.

[0008] Optionally, the printing mechanism further comprises a second maintenance mechanism, the second maintenance mechanism comprising a liquid storage table body, a liquid spraying module and a driving module, the liquid storage table body being provided with a water placing recess, the water placing recess being provided with an inward recess opening, the liquid spraying module being arranged in the water placing recess and partially exposed to the groove bottom of the water placing recess, the liquid spraying module spraying water into the water placing recess along a first direction, the liquid spraying module and the liquid storage table body being mounted on the driving module, the driving module being mounted on the support, the driving module being used to drive the second maintenance mechanism to move along a second direction relative to the support. The second maintenance mechanism has a first preset state and a second preset state. In the first preset state, the driving module moves the liquid storage table body to below the inkjet head to be cleaned. In the second preset state, the liquid spraying module sprays water into the water placing recess to clean the inkjet head.

[0009] Optionally, the inkjet assembly comprises a partition plate, and the inkjet head is arranged at the partition plate. The second maintenance mechanism further comprises a limiting pulley, the limiting pulley being arranged at both sides of the liquid storage table body, the distance between the end of the limiting pulley farthest from the support and the support being G1, the distance between the end of the liquid storage table body farthest from the support and the support being G2, G1 being greater than G2, the limiting pulley being used to abut against the partition plate, and the limiting pulley being movable relative to the partition plate.

[0010] Optionally, the inkjet head comprises an inkjet head body, a movable base table and an inkjet adjusting assembly, the movable base table being located at the partition plate and movable relative to the partition plate, the inkjet head body being mounted on the movable base table, the inkjet adjusting assembly being arranged on one side of the inkjet head body or opposite sides and partially abutting against the movable base table, the inkjet adjusting assembly being used to push the movable base table to move.

[0011] Optionally, the second maintenance mechanism further comprises a water suction opening and a plurality of water outlet connectors, the water suction opening being arranged at the groove bottom of the water placing recess, the water outlet connectors being in communication with the water suction opening, the water suction opening being used to suck water and discharge the water through the water outlet connectors.

[0012] Optionally, the second maintenance mechanism comprises at least two liquid storage platforms, and a mounting rack plate, the mounting rack plate is arranged on the driving module, and the liquid storage platforms are mounted on the mounting rack plate. The liquid storage platforms are in the shape of a platform, the platform surface of the liquid storage platforms on the side close to the mounting rack plate is larger than the platform surface of the liquid storage platforms on the side away from the mounting rack plate, the water placing recess is arranged on the platform surface of the liquid storage platforms away from the mounting rack plate and the inclined surface of the liquid storage platforms, and the water suction opening is arranged on the liquid storage platforms.

[0013] Optionally, the mounting rack plate comprises a rack body and a mounting plate, the rack body is mounted on the mounting plate, the mounting plate is arranged on the driving module, the rack body and the liquid storage platforms jointly enclose a liquid storage cavity and a waste liquid cavity, the liquid storage cavity and the waste liquid cavity are arranged separately, the liquid spraying module partially penetrates through the liquid storage cavity, and the waste liquid cavity is connected with the water outlet joint.

[0014] Optionally, the printing mechanism further comprises a sensing module, the sensing module comprises first and second sensors, the first and second sensors are arranged on the two sides of the mounting rack plate respectively, and the first and second sensors are used for detecting the working state of the inkjet head.

[0015] To solve the above technical problems, the embodiment of the present application further provides a printing device, which comprises the above printing mechanism and a conveying device, the printing mechanism is mounted on the conveying device, and the conveying device is used for conveying materials to the printing mechanism for printing.

[0016] The embodiment of the present application has the beneficial effect that, different from the prior art, the embodiment of the present application provides a printing mechanism and a printing device, the printing mechanism comprises a support, an inkjet module and a first maintenance mechanism. The inkjet module comprises an inkjet head, the inkjet head is mounted on the support, and the inkjet head is used for inkjet printing work in a first direction. The first maintenance mechanism comprises a scraping sheet, a scraping plate base and a scraping plate driving module, the scraping sheet is mounted on the side of the scraping plate base facing the inkjet head, the scraping plate driving module is mounted on the side of the scraping plate base away from the scraping sheet, the scraping plate driving module can drive the scraping plate base to move in a second direction and / or a third direction, and the scraping sheet is used for scraping ink accumulated on the inkjet head. The first direction, the second direction and the third direction are perpendicular to each other. Through the above structure, when it is necessary to clean the ink accumulated on the inkjet head, the scraping plate driving module drives the scraping plate base to move in the second direction and / or the third direction, so that the scraping sheet corresponds to the inkjet head. The scraping plate driving module drives the scraping plate base to move in the third direction, so that the scraping sheet scrapes the ink accumulated on the inkjet head, thereby cleaning the inkjet head. BRIEF DESCRIPTION OF DRAWINGS

[0017] One or more embodiments are illustrated by way of example in the figures that are not intended to be limiting of the embodiments. Like numbers refer to like elements throughout. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments.

[0018] Figure 1 is a perspective view of a printing mechanism according to an embodiment of the present application;

[0019] Figure 2 is a partial schematic view of a printing mechanism according to an embodiment of the present application;

[0020] Figure 3 is a partial schematic view of a printing mechanism according to an embodiment of the present application; Figure 2 is an enlarged view of portion A of

[0021] Figure 4 is another partial schematic view of a printing mechanism according to an embodiment of the present application;

[0022] Figure 5 is an enlarged view of portion B of Figure 4

[0023] Figure 6 is an exploded view of a printing mechanism according to an embodiment of the present application;

[0024] Figure 7 is an enlarged view of portion C of Figure 6

[0025] Figure 8 is a partial schematic view of a printing mechanism according to an embodiment of the present application;

[0026] Figure 9 is an enlarged view of portion D of Figure 8

[0027] Figure 10 is a partial exploded view of a printing mechanism according to an embodiment of the present application;

[0028] Figure 11 is an exploded view of a printing mechanism according to an embodiment of the present application;

[0029] Figure 12 is a partial exploded view of a printing mechanism according to an embodiment of the present application;

[0030] Figure 13 is another partial schematic view of a printing mechanism according to an embodiment of the present application;

[0031] Figure 14 ​​​Fig. 1 is a schematic diagram of a liquid path relationship of a printing mechanism according to an embodiment of the present application.

[0032] The printing device 1000 is labeled as follows (see next page):

[0033]

[0034] DETAILED DESCRIPTION

[0035] For the purpose of promoting an understanding of the present application, the present application will now be described in greater detail with reference to the figures and embodiments. It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or one or more intervening elements can 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 one or more intervening elements can also be present. The terms "vertical", "horizontal", "left", "right", and similar expressions used in this specification are used for the purpose of illustration only.

[0036] Unless otherwise defined, all technical and scientific terms used in this specification shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the specification herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The use of the terms "and / or" includes a combination of one or more of the associated listed items.

[0037] An embodiment of the present application provides a printing device, which comprises a printing mechanism 100 and a conveying device. The printing mechanism 100 is arranged above the conveying device. The conveying device is used to convey materials to a position below the printing mechanism 100, so that the materials can be digitally printed by the printing mechanism 100.

[0038] For the printing mechanism 100 described above, please refer to Figures 1 to 5 , which respectively show a perspective view of the printing mechanism 100 according to an embodiment of the present application, a partial view of the printing mechanism 100 according to an embodiment of the present application, an enlarged view of part A of Figure 2 , another partial view of the printing mechanism 100 according to an embodiment of the present application, and an enlarged view of part B of Figure 4 . The printing mechanism 100 comprises a support 10, a printing module 30, and a first maintenance mechanism 60. The printing module 30 comprises a printing head 31, which is mounted on the support 10 and is used to perform inkjet printing along a first direction X. Please refer to Figure 3The first maintenance mechanism 60 comprises a wiper blade 61, a wiper base 62 and a wiper drive module 63. The wiper blade 61 is mounted on the side of the wiper base 62 facing the inkjet head 31. The wiper drive module 63 is mounted on the side of the wiper base 62 away from the wiper blade 61. The wiper drive module 63 is capable of driving the wiper base 62 to move along the third direction Z and / or the second direction Y. The wiper blade 61 is used to wipe off the ink accumulated on the inkjet head 31. The first direction X, the third direction Z and the second direction Y are perpendicular to each other. Optionally, the material of the wiper blade 61 comprises rubber, plastic or other materials with certain elasticity, so as to reduce the scratch on the inkjet head 31. The wiper blade 61 is obliquely mounted on the wiper base 62. The setting direction of the wiper blade 61 forms an angle with the first direction X. The contact surface of the wiper blade 61 faces the second direction Y.

[0039] Further, please refer to Figure 4 , in combination with other drawings. The wiper base 62 comprises a first movement base 621 and a second movement base 622 stacked along the first direction X. The wiper drive module 63 comprises a first movement assembly 631 and a second movement assembly 632. The first movement assembly 631 drives the second movement base 622 to move along the third direction Z relative to the support 10. The second movement assembly 632 drives the first movement base 621 to move along the second direction Y relative to the second movement base 622. In the embodiment of the present application, please refer to Figure 1 , in combination with other drawings. The first maintenance mechanism 60 further comprises a waste ink collecting mechanism 68. The waste ink collecting mechanism 68 comprises a first waste ink tank 681, a second waste ink tank 682 and a connecting pipe 683. The first waste ink tank 681 is mounted on the second movement base 622. The second waste ink tank 682 is mounted on the support 10. One end of the connecting pipe 683 is connected to the bottom of the first waste ink tank 681. The other end of the connecting pipe 683 extends into the second waste ink tank 682. It can be understood that the waste ink collecting mechanism 68 adopts a split design. When the wiper drive module 63 drives the wiper base 62 to move along the third direction Z and / or the second direction Y, the first waste ink tank 681 and the second waste ink tank 682 are prevented from interfering with each other. The first waste ink tank 681 and the second waste ink tank 682 are both open waste ink collecting tanks. On the one hand, the open waste ink collecting tanks facilitate the movement of the connecting pipe 683. On the other hand, the waste ink in the first waste ink tank 681 and / or the second waste ink tank 682 can be directly extracted. The first waste ink tank 681 receives the waste ink discharged from the first movement base 621.

[0040] Further, please refer to Figure 4Please refer to Figure 2 , the second motion assembly 632 comprises a second drive motor 6321, a second ball screw 6322, and a second sliding seat 6323. The second drive motor 6321 is installed on the second motion base 622. The second ball screw 6322 is installed on the second motion base 622 along the third direction Z, and the second drive motor 6321 is rotationally connected with the second ball screw 6322. The second sliding seat 6323 is installed on the first motion base 621, and the second sliding seat 6323 is screwed with the second ball screw 6322. The second ball screw 6322 drives the second sliding seat 6323 to move along the second direction Y.

[0041] In the embodiments of the present application, please refer to Figure 3 , and the other drawings. The first maintenance mechanism 60 further comprises a moisturizing assembly 64, which comprises a moisturizing support 641 and a moisturizing piece 642. The moisturizing support 641 is provided in the shape of a long cuboid frame, and the moisturizing piece 642 is arranged in the moisturizing support 641. The squeegee 61 is arranged adjacent to the moisturizing support 641 and the moisturizing piece 642. It can be understood that when the inkjet head 31 is not needed for inkjet printing, the inkjet head 31 will abut against the moisturizing piece 642, and the moisturizing piece 642 will contain cleaning and maintenance liquid such as water, so as to maintain and protect the inkjet head 31 when it is not needed. It can be understood that the moisturizing piece 642 is made of materials such as sponge and high-strength PVC cloth. It is still necessary to mention that please refer to Figure 4 and Figure 5 , and the other drawings. The first maintenance mechanism 60 further comprises a detection assembly 65, which comprises a detection switch 651 and a detection baffle 652. The detection switch 651 is arranged on the second motion base 622, and the detection baffle 652 is arranged on the first motion base 621. The detection baffle 652 can move relative to the second motion base 622 along with the first motion base 621, and the detection baffle 652 can also trigger the detection switch 651 when passing through the detection switch 651. It can be understood that a plurality of detection switches 651 are arranged on the second motion base 622, so as to determine the current relative position of the second motion base 622 and the first motion base 621, and further determine whether the ink scraping action of the squeegee 61 is completed. It is worth mentioning that please refer to Figure 2 andFigure 3 The first maintenance mechanism 60 also includes a cleaning seat 67 with a cleaning head 66, which is mounted on the scraper base 62. The cleaning head 66 is positioned facing the scraper blade 61 and is used to spray water to clean the ink stains on the scraper blade 61 after the scraper blade 61 has finished scraping ink. Specifically, the cleaning seat 67 is inclined on the scraper base 62, the cleaning seat 67 holds the scraper blade 61, and the cleaning head 66 is positioned facing the surface of the scraper blade 61.

[0042] For the aforementioned printing mechanism 100, please refer to Figures 6 to 9 They respectively show part drawings of the inkjet head 31 provided in one embodiment of this application and the inkjet head 31 provided in one embodiment of this application. Figure 6 Enlarged view of part C, partial perspective view of printing mechanism 100 provided in one embodiment of this application, and view of printing mechanism 100 provided in one embodiment of this application. Figure 8 A magnified view of part D. Please refer to the following first. Figure 8 and Figure 9 The printing mechanism 100 also includes a second maintenance mechanism 20. The printing module 30 includes a printhead 31, which is mounted on the support 10. The printhead 31 is used for inkjet printing along the first direction X. The second maintenance mechanism 20 includes a liquid storage platform 21, a liquid spraying module 22, and a drive module 27. The liquid storage platform 21 is provided with a water-filled recess 211 with an opening. The liquid spraying module 22 is disposed in the water-filled recess 211, and part of the liquid spraying module 22 is exposed at the bottom of the water-filled recess 211. The liquid spraying module 22 sprays water into the water-filled recess 211 along the first direction X. The liquid spraying module 22 and the liquid storage platform 21 are mounted on the drive module 27, which is mounted on the support. The drive module 27 is used to drive the second maintenance mechanism 20 to move relative to the support along the second direction Y. The second maintenance mechanism 20 has a first preset state and a second preset state. In the first preset state, the drive module 27 moves the liquid storage platform 21 to below the printhead 31 that needs to be cleaned. In the second preset state, the spray module 22 sprays water into the water-filled recess 211 to clean the printhead 31. The first direction X is perpendicular to the second direction Y. Specifically, the opening of the water-filled recess 211 faces the printhead 31, and the spray module 22 sprays water into the water-filled recess 211, thereby facilitating the partial immersion of the printhead 31 in water to clean accumulated ink and debris. The drive module 27 allows the second maintenance mechanism 20 to move in the second direction Y to clean the printhead 31 at different positions. It is worth mentioning that the description of the spray module 22 spraying water into the water-filled recess 211 to clean the printhead 31 in the second preset state means that the spray module 22 does not use a high-pressure water spray method, but rather sprays water into the water-filled recess 211.

[0043] It should be noted that the first direction X, the second direction Y and the third direction Z mentioned in the embodiments of the present application are as shown in Figure 2 the first direction X is a direction perpendicular to the plane on which the printing mechanism 100 is installed, while the second direction Y and the third direction Z are directions parallel to the plane on which the printing mechanism 100 is placed. Specifically, the first direction X is perpendicular to the ground, the second direction Y is parallel to the ground, and the first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0044] For the above-mentioned printing module 30, please refer to Figure 1 and other accompanying drawings. The printing module 30 further comprises a partition plate 32, an ink cartridge 33, a printing driving device 34 and a driving controller 35. The printing head 31 is arranged at the partition plate 32, the ink cartridge 33 is installed on the support 10, and the ink cartridge 33 is connected with the printing head 31, the ink cartridge 33 supplies ink to the printing head 31 so that the printing head 31 can print, the partition plate 32 is arranged at the side of the printing head 31 close to the second maintenance mechanism 20. The printing driving device 34 is installed on the support 10, and the printing driving device 34 is used to drive the printing module 30 to move along the first direction X. The driving controller 35 is electrically connected with the printing head 31, the ink cartridge 33 and the printing driving device 34, and is used to control the printing head 31, the ink cartridge 33 and the printing driving device 34 respectively. It can be understood that in the embodiments of the present application, the printing module 30 is provided with a plurality of groups of printing heads 31 and driving controllers 35 along the second direction Y, so as to increase the printing width and adapt to larger printing work of the material.

[0045] For further description of the scraper base 62 in combination with the above-mentioned embodiments, please refer to Figure 2 and Figure 3 together with other accompanying drawings. A sealing gasket 623 is arranged around the outer edge of the scraper base 62 on the side of the scraper base 62 facing the partition plate 32, and the sealing gasket 623 protrudes relative to the scraper base 62 on the side facing the partition plate 32. When the printing head 31 is not needed for printing work, the printing head 31 abuts against the moisturizing member 642, and the sealing gasket 623 is located between the scraper base 62 and the partition plate 32. On the one hand, the sealing gasket 623 can make the partition plate 32 and the scraper base 62 together enclose a sealed space to prevent dust from entering. On the other hand, the sealing gasket 623 can buffer when the partition plate 32 and the scraper base 62 are in contact, so as to prevent damage to the printing head 31.

[0046] For the above-mentioned printing head 31, please refer to Figure 6and the other drawings. The inkjet head 31 comprises an inkjet head body 311, a movable base 312, an inkjet adjusting assembly 313 and a reset assembly 314. The movable base 312 is located at the partition 32 and is movable relative to the base 32, the inkjet head body 311 is installed on the movable base 312, the inkjet adjusting assembly 313 is arranged on one side or opposite sides of the inkjet head body 311 and partially abuts against the movable base 312, the inkjet adjusting assembly 313 pushes the movable base 312 to move, so as to adjust the inkjet posture of the inkjet head 31, thereby ensuring the accuracy of the installation position of the inkjet head 31. Specifically, the inkjet head body 311 penetrates through the movable base 312, that is, the inkjet posture of the inkjet head body 311 is adjusted by pushing the movable base 312 through the inkjet adjusting assembly 313. It can be understood that when the inkjet adjusting assembly 313 is installed on one side of the inkjet head body 311, the installation angle of the inkjet head body 311 can be adjusted through the inkjet adjusting assembly 313; and in the embodiment of the present application, the inkjet adjusting assembly 313 is installed on both sides of the inkjet head body 311, that is: 1, the movable base 312 can be pushed by the inkjet adjusting assemblies 313 on both sides to different strokes, so that the inkjet head 311 rotates in the horizontal direction; 3, the movable base 312 can be pushed by the inkjet adjusting assemblies 313 on both sides to the same stroke, so that the inkjet head 311 moves in the horizontal direction. The reset assembly 314 is arranged on one side or opposite sides of the inkjet head body 311 and partially abuts against the inkjet head body 311, and the reset assembly 314 is used to assist the inkjet adjusting assembly 313 to push the inkjet head body 311. It can be understood that the reset assembly 314 comprises a reset support 3141 and a spring 3142, the spring 3142 at least partially penetrates through the reset support 3141, one end of the spring 3142 abuts against the reset support 3141 and the other end abuts against the movable base 312, so as to apply elastic force to the movable base 312; optionally, the spring 3142 can be a tension spring or a compression spring. It is worth mentioning that when the inkjet head 31 is not required to perform the inkjet work, the inkjet head 31 abuts against the moisturizing member 642, specifically, the movable base 312 abuts against the moisturizing support 641, so as to prevent the inkjet head body 311 from being damaged by excessively extending into the moisturizing member 642.

[0047] Further, please refer to Figure 7and the other drawings. The jet printing adjusting assembly 313 comprises a driving support 3131, a driving motor 3132, a transmission gear 3133, a pushing shaft 3134 and a linear bearing 3135. The driving motor 3132 is installed on the driving support 3131, the transmission gear 3133 is installed on the driving motor 3132, the driving motor 3132 drives the transmission gear 3133 to rotate, the pushing shaft 3134 is rotatably installed on the driving support 3131, the pushing shaft 3134 is provided with a gear slot, the pushing shaft 3134 is engaged with the transmission gear 3133, the transmission gear 3133 drives the pushing shaft 3134 to rotate, the rotation axis of the driving motor 3132 is perpendicular to the rotation axis of the pushing shaft 3134, optionally, the transmission gear 3133 and the pushing shaft 3134 are engaged in the form of straight teeth, or the transmission gear 3133 is a helical gear, and the transmission gear 3133 and the pushing shaft 3134 are engaged in the form of helical teeth. The linear bearing 3135 is installed on the pushing shaft 3134, and the pushing shaft 3134 drives the linear bearing to move along the rotation axis of the pushing shaft 3134 by rotating. In the embodiment of the present application, the movable base 312 is also provided with a pushing groove 3121, and one end of the linear bearing 3135 away from the pushing shaft 3134 abuts in the pushing groove 3121; in order to facilitate the movement of the inkjet head body 311, the pushing groove 3121 is provided as an "L" shaped groove and / or a "V" shaped groove, and one end of the linear bearing 3135 away from the pushing shaft 3134 is provided as a hemispherical end, thereby facilitating rotation. It still needs to be explained that there is an included angle between the axes of the pushing shafts 3134 located on both sides of the inkjet head body 311 in the embodiment of the present application, and the included angle can be a 90° perpendicular included angle or an included angle of other angles. Specifically, one of the two linear bearings 3135 pushes in the "L" shaped pushing groove 3121 on the inkjet head body 311, and the other linear bearing 3135 pushes in the "L" shaped pushing groove 3121, thereby facilitating the pushing shaft 3134 to push the linear bearing 3135 to adjust the installation position of the inkjet head body 311. Specifically, the "L" shaped pushing groove 3121 and the reset assembly 314 are arranged on the same side, the linear bearing 3135 arranged on the same side vertically pushes the "L" shaped pushing groove 3121, and the reset assembly 314 is used to assist the linear bearing 3135 to adjust the jetting posture of the inkjet head body 311, the "V" shaped groove and the reset assembly 314 are arranged on the opposite side, and the other linear bearing 3135 pushes in the "V" shaped pushing groove 3121, thereby preventing the linear bearing 3135 from coming out of the "V" shaped pushing groove 3121.

[0048] Further, please refer to Figure 10 and Figure 13Fig. 2 and Fig. 3 respectively show a partial exploded view of the printing mechanism 100 according to an embodiment of the present application and another partial view of the printing mechanism 100 according to an embodiment of the present application, and are combined with other figures. The second maintenance mechanism 20 further comprises a limiting pulley 26, which is arranged on both sides of the liquid storage platform 21, and the distance between the end of the limiting pulley 26 farthest from the support 10 and the support 10 is G1, the distance between the end of the liquid storage platform 21 farthest from the support 10 and the support 10 is G2, G1 is greater than G2, and the limiting pulley 26 is used to abut against the partition plate of the printing assembly, and the limiting pulley 26 can move relative to the partition plate of the printing assembly. Optionally, please refer to Figure 13 and combined with other figures. The difference between G1 and G2 is between 1mm and 3mm. That is, the limiting pulley 26 can limit the movement of the printing assembly along the first direction X, prevent the printing head 31 from interfering with the second maintenance mechanism 20, and damage the printing head 31. Specifically, the limiting pulley 26 is composed of four limiting pulleys, which are arranged in pairs on both sides of the liquid storage platform 21, so that the relative movement between the limiting pulley 26 and the partition plate of the printing assembly is stable and not easy to vibrate; the rolling direction of the limiting pulley 26 is the same as the direction of movement of the driving module 27, so that when the driving module 27 drives the second maintenance mechanism 20 to move, the limiting pulley 26 will roll relative to the partition plate of the inkjet module, reducing friction. It can be understood that in order to limit the movement of the printing assembly along the first direction X, the limiting pulley 26 can be installed on the printing assembly, or other structural forms can be used, or lubricating oil, lead powder, etc. can be coated between the limiting pulley 26 and the partition plate of the printing assembly, so as to facilitate the relative movement between the second maintenance mechanism 20 and / or the driving module and the partition plate while limiting the movement of the printing assembly along the first direction X.

[0049] Further, please refer to Figure 11Fig. 2 shows a part of the storage table body 21 according to an embodiment of the present application, and Fig. 3 shows a part of the storage table body 21 according to another embodiment of the present application. The storage table body 21 is shown in a part view. The second maintenance mechanism 20 further comprises a water suction opening 23 and a plurality of water outlet joints 24. The water suction opening 23 is arranged at the bottom of the water placement recess 211, and the water outlet joints 24 are in communication with the water suction opening 23. The water suction opening 23 is used for water suction and water discharge through the water outlet joints 24. It can be understood that the water suction opening 23 can be used for absorbing water in the water placement recess 211 and waste liquid after cleaning the inkjet head 31, and directly absorbing ink on the inkjet head 31. Specifically, two square openings are arranged at the bottom of the water placement recess 211 to make full use of the bottom of the water placement recess 211. Correspondingly, when the water placement recess 211 is arranged as a recess with other shapes, the opening shape should be changed adaptively, which will not be listed one by one here. The liquid jet module 22 is composed of a plurality of water jet heads 223 and exposed to the opening, and the water suction opening 23 is arranged adjacent to the opening in a strip shape. It can be understood that in the embodiment of the present application, in order to maximize the working efficiency of the liquid jet module 22 and the water suction opening 23, when the inkjet head 31 is cleaned, water can be first poured into the water placement recess 211 by the liquid jet module 22, so that the water in the water placement recess 211 can clean the inkjet head 31, then the liquid jet module 22 is closed to stop pouring water into the water placement recess 211, so that the water suction opening 23 can absorb the water and waste liquid in the water placement recess 211 and discharge them through the water outlet joints 24, and the water suction opening 23 directly absorbs residual liquid drops on the inkjet head 31 and discharges them through the water outlet joints 24. Specifically, the water outlet joints 24 can be connected to the bottom of the water placement recess 211 or connected to the side of the water placement recess 211 close to the bottom, and the water outlet joints 24 are arranged in an "L" shape.

[0050] Further, please refer to Figures 10 to 12 wherein Figure 12 Fig. 1 shows a part of the printing mechanism 100 according to an embodiment of the present application, and Fig. 2 shows a part of the printing mechanism 100 according to another embodiment of the present application. The second maintenance mechanism 20 comprises at least two storage table bodies 21 and a mounting rack plate 25. The mounting rack plate 25 is arranged on the driving module 27, and the storage table bodies 21 are arranged on the mounting rack plate 25. The storage table body 21 is in a table shape. The side of the storage table body 21 close to the mounting rack plate 25 has a larger table surface than the side of the storage table body 21 away from the mounting rack plate 25. The water placement recess 211 is arranged on the surface of the side of the storage table body 21 away from the mounting rack plate 25 and the inclined surface of the storage table body 21, and the water suction opening 23 is arranged on the storage table body 21. Specifically, the storage table body 21 is in a stepped table shape. The water placement recess 211 is arranged on the upper surface and the inclined surface of the storage table body 21, so that water can flow down along the inclined surface of the storage table body 21, preventing the water in the water placement recess 211 from gathering too quickly. The liquid jet module 22 and the water suction opening 23 are arranged on the upper surface of the storage table body 21, and a water outlet is arranged at the bottom of the water placement recess 211 close to the lower surface of the storage table body 21 for water discharge.

[0051] Further, refer to Figure 11 and other drawings. The water recess 211 includes a central groove area 2111 and a surrounding groove area 2112, the depth of the central groove area 2111 is less than that of the surrounding groove area 2112, the surrounding groove area 2112 is arranged around the central groove area 2111, and the water outlet connector 24 is in communication with the groove bottom of the surrounding groove area 2112. In order to facilitate the flow of water and waste liquid, and increase the volume in the water recess 211, so as to facilitate water storage. Optionally, the liquid storage platform 21 is provided with a limiting wall 212, which is arranged on one side of the inclined surface of the liquid storage platform 21, and the distance H1 between the farthest end of the limiting wall 212 and the mounting rack plate 25 is less than the distance H2 between the platform surface of the liquid storage platform 21 away from the mounting rack plate 25 and the mounting rack plate 25; the limiting wall 212 is used to prevent water from overflowing; or when the liquid storage platform 21 is in the shape of an isosceles trapezoid, limiting walls 212 can be arranged on both sides of the liquid storage platform 21 to prevent water and waste liquid from overflowing and damaging other parts.

[0052] For the above mounting rack plate 25, refer to Figure 12 and Figure 13 wherein Figure 13 shows another partial schematic view of the printing mechanism 100 provided by one of the embodiments of the present application, and in combination with other drawings. The mounting rack plate 25 includes a rack body 251 and a mounting plate 252, the rack body 251 is mounted on the mounting plate 252, the mounting plate 252 is arranged on the driving module 27, the rack body 251 and the liquid storage platform 21 together enclose a liquid storage cavity 253 and a waste liquid cavity 254, the liquid storage cavity 253 and the waste liquid cavity 254 are arranged separately, the liquid ejection module partially penetrates the liquid storage cavity 253, and the waste liquid cavity 254 is connected with the water outlet connector 24. The liquid storage cavity 253 and the waste liquid cavity 254 are arranged separately in order to prevent the water in the liquid storage cavity 253 from mixing with the liquid for cleaning the liquid ejection head 31 in the waste liquid cavity 254, prevent the water from being contaminated, and facilitate the cleaning of the liquid ejection head 31. It can be understood that the waste liquid cavity 253 is also in communication with the surrounding groove area 2112, so as to facilitate the discharge of waste liquid in the central groove area 2111 and the surrounding groove area 2112. In combination with the limiting pulley 26 in the above embodiment, the limiting pulley 26 is rotatably connected to a protrusion arranged on the mounting plate 252 and fixed with the rack body 251, the limiting pulley 26 is arranged on both sides of the mounting plate 252, and in some other embodiments, it can also be arranged between the two liquid storage platforms 21, thereby improving the stability of the relative movement between the limiting pulley 26 and the partition plate.

[0053] Further, refer to Figure 12and the other drawings. The mounting plate 25 further comprises a sealing ring 255, and the mounting body 251 is concavely provided with a sealing groove 2511, the groove opening of the sealing groove 2511 is arranged towards the liquid storage table body 21, that is, when the liquid storage table body 21 is fixed on the mounting body 251, the sealing ring 255 is arranged between the liquid storage table body 21 and the mounting body 251 to seal, the sealing ring 255 is accommodated in the sealing groove 2411, and the sealing ring 255 is used for sealing the liquid storage cavity 253 and / or the waste liquid cavity 254.

[0054] For the above-mentioned liquid spraying module 22, please refer to Figure 14 which shows a schematic diagram of a liquid path relationship of the printing mechanism 100 provided by one of the embodiments of the present application, and the other drawings. The liquid spraying module 22 comprises a water storage tank 221, a proportional valve 222 and a water spraying head 223, which are sequentially connected, the water spraying head 223 is mounted on the driving module 27, the proportional valve 222 is mounted on the driving module 27 or the support 10, and the water storage tank 221 is mounted on the driving module 27 or the support 10, the water storage tank 221 is used for temporarily storing water, the proportional valve 222 is used for pressing the water in the water storage tank 221 to the water spraying head 223 by using positive pressure or negative pressure, and the water spraying head 223 is used for spraying water. Specifically, the water spraying head 223 is arranged at the square opening at the groove bottom of the water placing recess 211, and the water spraying head 223 is exposed at the opening, and the water spraying head 223 has a plurality of water spraying heads and is arranged in an array. Optionally, at the water spraying head 223, the liquid level sprayed by the water spraying head 223 is greater than or equal to the distance between the water placing recess 211 and the inkjet head 31. That is, the water sprayed by the water spraying head 223 just covers the inkjet head 31 to clean the inkjet head 31. Specifically, the height of the water column sprayed by the water spraying head 223 should be within 1-3 mm, and it is a non-high-pressure water column to prevent the inkjet head 31 from being damaged. In combination with the above-mentioned embodiment, the proportional valve 222 and the water spraying head 223 are connected to the liquid storage cavity 253, so that the water can be temporarily stored in the liquid storage cavity 253, thereby enabling the proportional valve 222 to slowly spray water from the water spraying head 223 by using smaller pressure, to prevent the inkjet head 31 from being damaged.

[0055] For the above-mentioned driving module 27, please refer to Figure 8Please refer to the accompanying drawings. The driving module 27 comprises a driving motor 271, a synchronous shaft 272 and a conveying belt 273, the conveying belt 273 extends along the second direction Y, and the two ends of the mounting rack plate 25 are arranged on the conveying belt 273. The two ends of the synchronous shaft 272 are connected with the conveying belt 273, so that the conveying belt 273 at the two ends of the mounting rack plate 25 can move synchronously. The driving motor 271 drives the synchronous shaft 272 to rotate to drive the conveying belt 273 to move; optionally, the transmission mode of the driving motor 271 and the synchronous shaft 272 can be a belt transmission mode of a pulley, or a chain transmission mode of a sprocket, or a gear transmission mode composed of a gear set; the above transmission modes can be adaptively changed according to actual use. It is worth mentioning that in other embodiments, the driving module 27 further comprises a pneumatic cylinder lifting device (not shown in the figure), which is installed below the driving motor 271 and the conveying belt 273 to simultaneously lift or lower the driving motor 271, the synchronous shaft 272 and the conveying belt 273, so that the driving module 27 can drive the mounting rack plate 25 to move along the second direction Y and the first direction X.

[0056] In the embodiments of the present application, please refer to Figure 10 Please refer to the accompanying drawings. The printing mechanism 100 further comprises a sensing module 40, the sensing module 40 comprises a first sensor 41 and a second sensor 42, the first sensor 41 and the second sensor 42 are arranged on the two sides of the mounting rack plate 25 respectively, and the first sensor 41 and the second sensor 42 are used to detect the working state of the printing device inkjet head 31. It should be noted that the first sensor 41 and the second sensor 42 obtain the current state of the inkjet head 31 by acquiring and detecting at least one of 1) whether there are ink droplets passing through; 2) the distribution position, movement path and other characteristics of the ink droplets passing between the two; 3) the morphological characteristics, shape characteristics and the like of the inkjet head 31 itself.

[0057] In the embodiments of the present application, please refer to Figure 13 Please refer to the accompanying drawings. The printing mechanism 100 further comprises a sensing module 40, the sensing module 40 comprises a first sensor 41 and a second sensor 42, the first sensor 41 and the second sensor 42 are arranged on the two sides of the mounting rack plate 25 respectively, and the first sensor 41 and the second sensor 42 are used to detect the working state of the printing device inkjet head 31. It should be noted that the first sensor 41 and the second sensor 42 obtain the current state of the inkjet head 31 by acquiring and detecting at least one of 1) whether there are ink droplets passing through; 2) the distribution position, movement path and other characteristics of the ink droplets passing between the two; 3) the morphological characteristics, shape characteristics and the like of the inkjet head 31 itself.

[0058] Further illustrated in combination with the above embodiments, the printing mechanism 100 provided by the embodiments of the present application simultaneously includes the first maintenance mechanism 60 and the second maintenance mechanism 20, that is, the first maintenance mechanism 60 in the form of the wiper blade 61 scraping off the ink accumulation on the inkjet head 31, and the second maintenance mechanism 60 in the form of water gushing at low pressure to clean the ink accumulation on the inkjet head 31. It can be understood that a plurality of wiper blades 61 are provided in the embodiments of the present application, and the plurality of wiper blades 61 are staggered, and the wiper blades 61 scrape off the ink accumulation on the inkjet head 31 along the second direction Y. The second maintenance mechanism 20 is used to clean the inkjet head 31 by continuously moving with water. Therefore, the first maintenance mechanism 60 can simultaneously clean all the inkjet heads 31, and the second maintenance mechanism 20 can clean the inkjet head 31 that needs to be cleaned alone. Alternatively, the first maintenance mechanism 60 and the second maintenance mechanism 20 can simultaneously or sequentially clean and maintain the inkjet head 31.

[0059] The embodiments of the present application provide a printing mechanism 100, which includes a support 10, an inkjet module 30, and a first maintenance mechanism 60. The inkjet module 30 includes an inkjet head 31, which is installed on the support 10 and is used for inkjet printing along a first direction X. The first maintenance mechanism 60 includes a wiper blade 61, a wiper base 62, and a wiper drive module 63. The wiper blade 61 is installed on one side of the wiper base 62 facing the inkjet head 31. The wiper drive module 63 is installed on the side of the wiper base 62 away from the wiper blade 61. The wiper drive module 63 can drive the wiper base 62 to move along a third direction Z and / or a second direction Y. The wiper blade 61 is used to scrape off the ink accumulation on the inkjet head 31. The first direction X, the third direction Z, and the second direction Y are perpendicular to each other. Through the above structure, when it is necessary to clean the ink accumulation on the inkjet head 31, the wiper drive module 63 drives the wiper base 62 to move along the second direction Y and / or the third direction Z, so that the wiper blade 61 corresponds to the inkjet head 31. The wiper drive module 63 drives the wiper base 62 to move along the third direction Z, so that the wiper blade 61 scrapes off the ink accumulation on the inkjet head 31, thereby cleaning the inkjet head 31.

[0060] Based on the same inventive concept, the present application further provides a printing device, which includes the above printing device 100 and a conveying device. The printing device 100 is installed on the conveying device, and the conveying device is used to convey materials to the printing device 100 for printing. The printing device 100 has the same structure and function as the printing device 100 in the above embodiments, which will not be described herein. Therefore, the printing device can also use water flow to clean the inkjet head 31, reduce the direct contact of the wiper blade with the inkjet head 31, and protect the inkjet head 31, thereby improving the current situation that the direct contact of the wiper blade with the inkjet head 31 easily damages the inkjet head and affects the inkjet precision of the high-precision inkjet head when cleaning the inkjet head in the digital printing device.

[0061] It should be noted that the preferred embodiments of the present application are described in the specification and the drawings of this patent application and are shown in the drawings; however, it is not intended to limit the present application to the embodiments described in the specification and drawings of this patent application, and it is instead intended that the present application cover all alternatives consistent with the scope of the present application, and it is therefore intended that the present application cover the variations and modifications as set forth in the claims below and their equivalents.

Claims

1. A printing mechanism, characterized by, The printing mechanism comprises: a support; a printing module comprising a printing head, the printing head being mounted on the support and being used for inkjet printing in a first direction; a first maintenance mechanism comprising a wiper blade, a wiper base and a wiper drive module, the wiper blade being mounted on a side of the wiper base facing the printing head, the wiper drive module being mounted on a side of the wiper base away from the wiper blade, the wiper drive module being capable of driving the wiper base to move in a second direction and / or a third direction, the wiper blade being used for wiping off ink accumulated on the printing head, wherein the wiper base comprises a first movement base and a second movement base stacked in the first direction, the wiper drive module comprises a first movement assembly and a second movement assembly, the first movement assembly drives the second movement base to move relative to the support in the second direction, and the second movement assembly drives the first movement base to move relative to the second movement base in the third direction, and a second maintenance mechanism mounted on the support, the second maintenance mechanism being used for cleaning ink accumulated on the printing head by water gushing at low pressure, the second maintenance mechanism comprising a liquid storage table, a liquid spraying module and a drive module, the liquid storage table is provided with a water placement recess, the water placement recess is provided with an inward opening facing the liquid storage table, the liquid spraying module is arranged in the water placement recess and partially exposed to the groove bottom of the water placement recess, the liquid spraying module sprays water into the water placement recess in a first direction, the liquid spraying module and the liquid storage table are mounted on the drive module, the drive module is mounted on the support, and the drive module is used for driving the second maintenance mechanism to move relative to the support in a second direction; the first direction, the second direction and the third direction are perpendicular to each other.

2. The printing mechanism of claim 1, wherein, The first maintenance mechanism further comprises a waste ink collection mechanism, the waste ink collection mechanism comprising a first waste ink box, a second waste ink box and a connecting pipe, the first waste ink box being mounted on the second movement base, the second waste ink box being mounted on the support, one end of the connecting pipe being connected to the bottom of the first waste ink box, and the other end of the connecting pipe extending into the second waste ink box.

3. The printing mechanism according to claim 1, wherein the second maintenance mechanism has a first preset state and a second preset state, in the first preset state, the drive module moves the liquid storage table to below the printing head to be cleaned; in the second preset state, the liquid spraying module sprays water into the water placement recess and cleans the printing head.

4. The printing mechanism of claim 3, wherein, The printing module comprises a partition, and the printing head is arranged at the partition; the second maintenance mechanism further comprises a limiting pulley, the limiting pulley being arranged on both sides of the liquid storage table, the distance between the end of the limiting pulley farthest from the support and the support being G1, the distance between the end of the liquid storage table farthest from the support and the support being G2, G1 being greater than G2, the limiting pulley being used for abutting against the partition, and the limiting pulley being capable of moving relative to the partition.

5. The printing mechanism of claim 4, wherein, The inkjet head comprises an inkjet head body, a movable base plate, and an inkjet adjusting assembly, the movable base plate is located at the partition plate and is movable relative to the partition plate, the inkjet head body is installed on the movable base plate, the inkjet adjusting assembly is arranged on one side or opposite sides of the inkjet head body and partially abuts against the movable base plate, and the inkjet adjusting assembly is used to push the movable base plate to move.

6. The printing mechanism of claim 3, wherein, The second maintenance mechanism further comprises a water suction opening and a plurality of water outlet joints, the water suction opening is arranged at the bottom of the water storage recess, and the water outlet joints are in communication with the water suction opening, the water suction opening is used to suck water and discharge the water through the water outlet joints.

7. The printing mechanism of claim 6, wherein, The second maintenance mechanism comprises at least two liquid storage platforms and a mounting rack plate, the mounting rack plate is arranged on the driving module, and the liquid storage platforms are mounted on the mounting rack plate. The liquid storage platform is in the shape of a platform, the platform surface of one side of the liquid storage platform close to the mounting rack plate is larger than the platform surface of the other side of the liquid storage platform away from the mounting rack plate, the water storage recess is arranged on the platform surface of the liquid storage platform away from the mounting rack plate and the inclined surface of the liquid storage platform, and the water suction opening is arranged on the liquid storage platform.

8. The printing mechanism of claim 7, wherein, The mounting rack plate comprises a rack body and a mounting plate, the rack body is mounted on the mounting plate, the mounting plate is arranged on the driving module, the liquid storage cavity and the waste liquid cavity enclosed by the rack body and the liquid storage platforms are arranged, the liquid storage cavity and the waste liquid cavity are separately arranged, the liquid ejection module partially passes through the liquid storage cavity, and the waste liquid cavity is connected with the water outlet joints.

9. The printing mechanism of claim 7, wherein, The printing mechanism further comprises a sensing module, the sensing module comprises first and second sensors, the first and second sensors are arranged on two sides of the mounting rack plate respectively, and the first and second sensors are used to detect the working state of the inkjet head.

10. A printing device, characterized by, The printing mechanism comprises the printing mechanism according to any one of claims 1-9 and a conveying device, the printing mechanism is mounted on the conveying device, and the conveying device is used to convey materials to the printing mechanism for printing.

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