Spraying mechanism and spray printing equipment

Abstract

The present invention belongs to the field of liquid spraying technology, and solves the problems of low automation, discontinuous production, and low working efficiency of liquid spraying in the existing processing method, and provides a spraying mechanism, which includes a spraying frame, a pair of guide rods, a spraying platform, a driving motor, and a transmission member; the pair of guide rods are arranged parallel to each other along the second direction, the spraying frame supports the pair of guide rods, and the two ends of the spraying platform are respectively slidably connected to the pair of guide rods, and the area surrounded by the two opposite free ends of the pair of guide rods defines the first spraying position, and a plurality of spray heads are arranged on the side of the spraying platform facing the first spraying position, and the transmission member is connected to the spraying platform and drives the spraying platform to reciprocate along the pair of guide rods so that the plurality of spray heads spray the first to-be-processed printing medium at the first spraying position. The spraying mechanism and the spray printing device of the present invention have the advantages of being able to ensure that the flatness of the spraying layer meets the requirements and having a high degree of automation.

Description

Technical Field

[0001] The invention belongs to the technical field of liquid spraying, and in particular relates to a spraying mechanism and a spraying printing device. Background Art

[0002] When a traditional printer prints a pattern on a textile, it is necessary to pre-wet the textile to be printed, then place the textile to be printed on a support platform, and then form a pattern on the textile by inkjet printing. This processing method requires the collaboration of multiple processing personnel, such as a wetting personnel who pre-wets the textile, a loading personnel who places the wetted textile on the support platform, a printing personnel who inkjet prints the textile, and an adjustment personnel who adjusts the placement position of the textile to achieve inkjet printing at different positions. However, in the above processing method, the pre-wetting of the textile to be printed needs to be done manually, resulting in a low degree of automation and high cost. In addition, it also brings about the unfavorable conditions of discontinuous production and low work efficiency to the above-mentioned entire processing method, and requires more human intervention, which invisibly increases a lot of safety hazards. Summary of the invention

[0003] In view of this, an embodiment of the present application provides a spray mechanism and a spray printing device to solve the problem that the flatness of the spray layer cannot be guaranteed due to the use of manual spraying in the existing processing method of printing patterns on textiles.

[0004] On the one hand, an embodiment of the present invention provides a spray mechanism, which includes a spray rack, a pair of guide rods, a spray platform, a driving motor and a transmission member; the pair of guide rods are arranged parallel to each other along a second direction, the spray rack supports the pair of guide rods, and both ends of the spray platform are respectively slidably connected to the pair of guide rods, and the area surrounded by the two opposite free ends of the pair of guide rods defines a first spray position, and a plurality of spray heads are provided on the side of the spray platform facing the first spray position, and the transmission member is drivingly connected to the spray platform and drives the spray platform to reciprocate along the pair of guide rods under the drive of the driving motor so that the plurality of spray heads spray the first printing medium to be processed at the first spray position.

[0005] Furthermore, the spray station includes a station body, at both ends of which are respectively provided with a hollow sliding sleeve slidably matched with a pair of guide rods, a support plate is fixed on one side of the station body facing the first spray position, and a plurality of spray heads are fixed on the support plate.

[0006] Furthermore, a fixing plate is provided on the upper part of the spraying station, and two ends of the fixing plate are fixedly connected to the transmission member and the station body respectively.

[0007] Furthermore, the spray rack includes four support columns and two support rods. A pair of guide rods and two support rods form a rectangle. The drive motor and the fixed seat are supported on the two support rods respectively. The transmission member is arranged between the drive motor and the fixed seat.

[0008] Furthermore, the transmission member is a transmission belt, the fixed seat includes a transmission wheel arranged therein, and two ends of the transmission belt are respectively hooped on the rotating wheel and the transmission wheel of the driving motor.

[0009] Furthermore, a starting position and a return position are respectively set at two pairs of free ends of a pair of guide rods, the spray station reciprocates between the starting position and the return position, and the multiple spray heads spray at least during the process of the spray station moving from the starting position to the return position.

[0010] Furthermore, the spray mechanism also includes a plurality of spray pipes. The table body is hollow and has a plurality of openings. The plurality of spray pipes are arranged in the table body and are connected to the plurality of spray heads through the plurality of openings.

[0011] Furthermore, a distance detector is provided on the support plate, and the distance detector is used to detect the relative distance between the first print medium to be processed and the plurality of spray heads, and the plurality of spray heads spray accordingly according to the detection result of the relative distance.

[0012] On the other hand, an embodiment of the present invention provides a spray printing device, which includes a frame, a crossbeam, a printing carriage, a first platform, a first guide rail and a first spray mechanism, the first spray mechanism is any of the above spray mechanisms, and the first spray mechanism is configured as: the spray rack is configured as a first spray rack, a pair of guide rods are configured as first guide rods and second guide rods, the spray station is configured as a first spray station, the drive motor is configured as a first drive motor, and the transmission member is configured as a first transmission member; the crossbeam is configured above the frame along a first direction, and the printing carriage reciprocates on the crossbeam; the first guide rail and the first spray mechanism are both configured on the frame along a second direction. The first platen is fixed and drives the first print medium to be processed to reciprocate along the first guide rail on a first path passing through a first initial position, a first spraying position and a first printing position; when the first platen is located at the first initial position, the first print medium to be processed is placed on the first platen or the processed first print medium to be processed is removed from the first platen, when the first platen moves to the first spraying position, the first spraying mechanism sprays the first print medium to be processed, and when the first platen moves to the first printing position, the printing carriage prints on the sprayed first print medium to be processed.

[0013] Furthermore, the spray printing device also includes a second spray mechanism, a second table and a second guide rail, the first spray mechanism is any of the above spray mechanisms, and the second spray mechanism is configured as: the spray rack is configured as a second spray rack, a pair of guide rods are configured as a third guide rod and a fourth guide rod, the spray platform is configured as a second spray platform, the drive motor is configured as a second drive motor, and the transmission member is configured as a second transmission member; the second guide rail and the second spray mechanism are both configured on the frame along a third direction, the second direction and the third direction are configured to be parallel to each other and perpendicular to the first direction, the second table fixes and drives the second to-be-processed printing medium to reciprocate along the second guide rail on a second path passing through a second initial position, a second spray position and a second printing position; when the second table is located at the second initial position, the unprocessed second to-be-processed printing medium is placed on the second table or the processed second to-be-processed printing medium is removed from the second table, when the second table moves to the second spray position, the second spray mechanism sprays the second to-be-processed printing medium, and when the second table moves to the second printing position, the printing carriage prints the sprayed second to-be-processed printing medium.

[0014] In summary, the beneficial effects of the present invention are as follows:

[0015] The spray printing method and the spray printing device provided by the embodiment of the present invention ensure the flatness of the spray layer through the movement of multiple spray heads, do not require manual spraying, and thus have high automation and work efficiency and few safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for use in the embodiment of the present invention will be briefly introduced below. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work, and these are all within the protection scope of the present invention.

[0017] Figure 1 is a schematic structural diagram of a spray printing device provided by an embodiment of the present invention;

[0018] Figure 2 is another structural schematic diagram of the spray printing device provided by an embodiment of the present invention;

[0019] Figure 3 1 is a schematic structural diagram of a spray mechanism (represented by a first spray mechanism) of a spray printing device provided in an embodiment of the present invention;

[0020] Figure 4 is another structural schematic diagram of a spray mechanism (represented by a first spray mechanism) of a spray printing device provided in an embodiment of the present invention;

[0021] Figure 5is a schematic flow chart of a spray printing method provided by an embodiment of the present invention;

[0022] Figure 6 is a schematic flow chart of a spray printing method provided by an embodiment of the present invention;

[0023] Figure 7 The present invention is a schematic diagram of the connection of various components of a spray printing device using a spray printing method provided by an embodiment of the present invention.

[0024] Description of reference numerals:

[0025] 1. Frame; 2. Crossbeam; 3. Printing carriage; 4. First spray mechanism; 41. First spray rack; 411. Support column; 412. Support rod; 42. First guide rod; 43. Second guide rod; 44. First spray station; 441. Station body; 45. First drive motor; 46. First transmission member; 47. Hollow sleeve; 48. Support plate; 49. Connecting plate; 410. Fixed plate; 5. Second spray mechanism; 51. Second spray rack; 52. Third guide rod; 53. Fourth guide rod ; 54, second spray station; 55, second drive motor; 56, second transmission member; first guide rail, first drive mechanism; second guide rail, second drive mechanism; 8, first table; 9, second table; GD, scraper; PLT, spray head; HCD, buffer pad; GDZ, fixed seat; QG, drive cylinder; CS1, first initial position; PL1, first spray position; DY1, first printing position; CS2, second initial position; PL2, second spray position; DY2, second printing position. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described in conjunction with the drawings in the embodiment of the present invention. It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In the absence of further restrictions, the elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements. If there is no conflict, the various features in the embodiments and examples of the present invention can be combined with each other, all within the scope of protection of the present invention.

[0027] refer to Figures 1 to 4Although the spray mechanism claimed for protection in the present invention is described below by taking the first spray mechanism and the second spray mechanism set in the spray printing device as an example, the spray mechanism can also be set in other devices that need to spray liquid. In addition, the fundamental difference between the spray mechanism and the first spray mechanism and the second spray mechanism is that it does not need to be equipped with a scraper, so that the flatness of the spray layer is guaranteed by adjusting the spraying of the spray mechanism. In the absence of conflict, the spray mechanism claimed for protection in the present invention can be applied to any of the spray printing devices and spray printing methods described below. An embodiment of the present invention provides a spray printing device, which includes a frame 1 (part of the structure is hidden), a beam 2, a printing carriage 3, a first spray mechanism 4, a first platen 8, a first driving mechanism 6 and a first guide rail. The beam 2 is arranged above the frame 1 along the first direction, and the printing carriage 3 reciprocates on the beam 2. The first guide rail and the first spray mechanism 4 are both arranged on the frame 1 along the second direction. In order to make the overall structure of the spray printing device compact, the second direction is preferably set to be perpendicular to the first direction. The first driving mechanism 6 can be a screw, and the screw is connected to a screw motor disposed in the frame 1. The first platen 8 is provided with a pair of screw holes arranged along the second direction for the screw to pass through, so that the first platen 8 can move in the positive and negative directions in the second direction through the forward and reverse rotation of the screw. The first platen 8 fixes and drives the first to-be-processed printing medium (not shown) to reciprocate along the first guide rail on the first path passing through the first initial position CS1, the first spraying position PL1 and the first printing position DY1. The first to-be-processed printing medium is a textile that needs to be pre-wetted and then inkjet printed to form a pattern. Specifically, the first to-be-processed printing medium needs to be sprayed with a liquid such as a wetting liquid and inkjet printed at the first spraying position PL1 and the first printing position DY1 from the first initial position CS1 through the first path. When the first platen 8 is located at the first initial position CS1, the unprocessed first to-be-processed printing medium is placed on the first platen 8 or the processed first to-be-processed printing medium is placed on the first platen 8. The medium is removed from the first platen 8, and when the first platen 8 moves to the first spraying position PL1, the first spraying mechanism 4 sprays the first print medium to be processed, and when the first platen 8 moves to the first printing position DY1, the printing carriage 3 prints the first print medium to be processed that has been sprayed. It should be noted that, for the printing performed by the printing carriage 3, the carriage can reciprocate on the beam 2 while also moving with the movement of the beam 2 on the frame 1 relative to the stationary first print medium to be processed, or the printing carriage 3 can reciprocate on the beam 2 while the first platen 8 drives the first print medium to be processed to move relative to the beam 2 fixed on the frame 1.Further, according to the structural arrangement and volume size of the spray printing device and the size of the first to-be-processed printing medium to be processed, the first initial position CS1, the first spray position PL1 and the first printing position DY1 can be specifically set as follows: in the extension direction of the first guide rail, the crossbeam 2 is arranged between the first initial position CS1 and the first spray mechanism 4, or the first spray mechanism 4 is arranged between the first initial position CS1 and the crossbeam 2. In order to make the overall structure of the spray printing device more compact, the embodiments of the present invention all use the crossbeam 2 arranged between the first initial position CS1 and the first spray mechanism 4. That is, the first to-be-processed printing medium, driven by the first platen 8, first passes through the crossbeam 2 to the bottom of the first spray mechanism 4 to receive the spray of the spray head PLT (further described below) and then reaches the bottom of the crossbeam 2 to receive the inkjet printing of the nozzle of the printing carriage 3. As described above, the spray printing device provided by the present invention can spray and inkjet print the first to-be-processed printing medium in a highly automated and continuous manner, thereby improving production efficiency and reducing safety hazards.

[0028] In one embodiment, the first spray mechanism 4 includes a first spray frame 41, a first guide rod 42, a second guide rod 43, a first spray station 44, a first drive motor 45 and a first transmission member 46. The first guide rod 42 and the second guide rod 43 are arranged parallel to each other along the second direction. The first spray position PL1 is located in the area surrounded by the two opposite free ends of the first guide rod 42 and the second guide rod 43. Specifically, when the first platen 8 moves as a whole to the surrounded area, the first spray station 44 moves to a corresponding edge of the surrounded area according to the printing area of ​​the first printing medium to be processed, and moves to another edge opposite to the edge in the second direction while spraying under the drive of the first transmission member 46. The first spray rack 41 supports the first guide rod 42 and the second guide rod 43 on the frame 1, and the two ends of the first spray station 44 are respectively slidably connected to the first guide rod 42 and the second guide rod 43. The first transmission member 46 is drivingly connected to the first spray station 44 and drives the first spray station 44 to reciprocate along the first guide rod 42 and the second guide rod 43 under the drive of the driving motor to spray the printing area of ​​the first to-be-processed printing medium located at the first spraying position PL1. Therefore, by arranging the first spray rack 41 on the first guide rod 42 and the second guide rod 43 to be driven to move, not only the movement is stable and the movement precision is high, so as to ensure the precise matching between the spraying area on the first to-be-processed printing medium and the area to be subsequently printed by inkjet.

[0029] In one embodiment, the spray station includes a station body 441, and a hollow sliding sleeve 47 that slides with the first guide rod 42 and the second guide rod 43 is provided at both ends of the station body 441. A support plate 48 is fixed on the side of the station body 441 facing the first spray position PL1, and multiple spray heads PLT are fixed on the support plate 48. Therefore, the spray station not only has a good sliding fit, but also the multiple spray heads PLT are firmly and accurately supported and fixed.

[0030] In one embodiment, a fixed plate 410 is provided on the upper portion of the table body 441, and both ends of the fixed plate 410 are fixedly connected to the first transmission member 46 and the table body 441 respectively. The first transmission member 46 can be a belt or a chain, and one end of the fixed plate 410 can be bonded to the belt or clamped in the chain, thereby ensuring the reliability of transmission.

[0031] In one embodiment, the spray rack includes four support columns 411 and two support rods 412. A pair of first guide rods 42 and a second guide rod 43 and the two support rods 412 form a rectangle. The drive motor and the fixed seat GDZ are respectively supported on the two support rods 412. The transmission member is arranged between the drive motor and the fixed seat GDZ. Therefore, the overall structure of the spray rack and its supporting components is compact.

[0032] In one embodiment, buffer pads HCD are provided between the two support rods 412 and the drive motor and the fixed seat GDZ, respectively, so that the stability of the transmission is ensured.

[0033] In one embodiment, the transmission member is a transmission belt, and the fixed seat GDZ includes a transmission wheel arranged therein, and two ends of the transmission belt are respectively hooped on the rotating wheel and the transmission wheel of the driving motor, thereby achieving very high transmission accuracy.

[0034] In one embodiment, a starting position and a return position are respectively set at two pairs of free ends of the first guide rod 42 and the second guide rod 43, and the spray station reciprocates between the starting position and the return position. The multiple spray heads PLT spray at least during the process of the spray station moving from the starting position to the return position. That is to say, even in the case of not configuring a scraper GD, a spray layer with a desired flatness can be obtained by controlling the amount of droplets sprayed by the multiple spray heads PLT and the number of spraying times.

[0035] In one embodiment, the spray mechanism also includes multiple spray pipes, the table body 441 is hollow and has multiple openings, the multiple spray pipes are arranged in the table body 441 and are respectively connected to the multiple spray heads PLT through the multiple openings. Therefore, the multiple spray heads PLT can receive a stable and accurate capacity of the wetting liquid, and the capacity of the wetting liquid to be supplied in each spray pipe can be determined according to the material of each printing medium to be processed, the printing area, etc. and pre-stored in the instructions in the memory.

[0036] In one embodiment, a distance detector (not shown) is provided on the support plate 48. The distance detector is used to detect the relative distance between the first printing medium to be processed and the multiple spray heads PLT. The multiple spray heads PLT perform corresponding spraying according to the detection result of the relative distance. Therefore, by setting up the distance detector, it is possible to help the size of the droplets sprayed by the multiple spray heads PLT to adapt to almost all spraying onto the first printing medium to be processed.

[0037] In one embodiment, the spray printing device also includes a second spray mechanism 5, a second platen 9, a second driving mechanism 7 and a second guide rail. The second guide rail and the second spray mechanism 5 are both arranged on the frame 1 along the third direction. The second platen 9 fixes and drives the second to-be-processed printing medium (not shown) to reciprocate along the second guide rail on a second path passing through the second initial position CS2, the second spray position PL2 and the second printing position DY2. When the second platen 9 is located at the second initial position CS2, the unprocessed second printing medium is placed on the second platen 9 or the processed second to-be-processed printing medium is removed from the second platen 9. When the second platen 9 moves to the second spray position PL2, the second spray mechanism 5 sprays the printing area of ​​the second to-be-processed printing medium. When the second platen 9 moves to the second printing position DY2, the printing carriage 3 prints the printing area of ​​the second to-be-processed printing medium that has been sprayed. Therefore, the other spray printing device provided by the present invention can spray and inkjet print the first to-be-processed printing medium and the second to-be-processed printing medium in a highly automated and continuous manner by configuring two spray mechanisms and related matching structures, thereby further improving production efficiency and reducing safety hazards. In addition, according to actual needs, by analogy, a third spray mechanism and related matching structures, etc., can also be set.

[0038] In one embodiment, the second direction and the third direction are arranged to be parallel to each other and perpendicular to the first direction. In this way, not only the overall structure of the spray printing device is ensured to be compact, but also the first to-be-processed printing medium and the second to-be-processed printing medium can be placed and removed relative to the first platen 8 and the second platen 9, respectively.

[0039] In one embodiment, the first platen 8 and the second platen 9 move alternately to the first initial position CS1 and the second initial position CS2, respectively. Therefore, the placement and removal of the first to-be-processed printing medium and the second to-be-processed printing medium relative to the first platen 8 and the second platen 9, respectively, can be implemented alternately manually or by machine, thereby further improving work efficiency.

[0040] In one embodiment, the further movement of the first platen 8 after moving to the first printing position DY1 is performed simultaneously with the reciprocating movement of the printing carriage 3 to complete the printing of the printing area of ​​the first to-be-processed printing medium, and the further movement of the second platen 9 after moving to the second printing position DY2 is performed simultaneously with the reciprocating movement of the printing carriage 3 to complete the printing of the printing area of ​​the second to-be-processed printing medium. Therefore, by arranging that the printing carriage 3 reciprocates on the beam 2 fixed to the frame 1 and the first platen 8 and the second platen 9 move relative to the beam 2 to realize the printing of the first to-be-processed printing medium and the second to-be-processed printing medium, the length of the first path and the second path can be shortened accordingly, thereby helping to reduce the volume occupied by the spray printing equipment and reduce the equipment cost.

[0041] In one embodiment, the second spray mechanism 5 includes a second spray frame 51, a third guide rod 52, a fourth guide rod 53, a second spray station 54, a second drive motor 55 and a second transmission member 56. The third guide rod 52 and the fourth guide rod 53 are arranged parallel to each other along the third direction. The second spray position PL2 is located in the area surrounded by the two opposite free ends of the third guide rod 52 and the fourth guide rod 53. The second spray frame 51 supports the third guide rod 52 and the fourth guide rod 53 on the frame 1. The two ends of the second spray station 54 are respectively slidably connected to the third guide rod 52 and the fourth guide rod 53. The second transmission member 56 is drivingly connected to the second spray station 54 and drives the second spray station 54 to reciprocate along the third guide rod 52 and the fourth guide rod 53 under the drive of the second drive motor to spray the printing area of ​​the second to-be-processed printing medium located at the second spray position PL2. Therefore, referring to the above description of the first spray mechanism 4, by setting the second spray rack 51 on the third guide rod 52 and the fourth guide rod 53 to be driven to move, not only the movement is smooth but also the movement accuracy is high, which ensures the precise matching of the area sprayed on the second printing medium to be processed and the area to be subsequently inkjet printed.

[0042] In one embodiment, a scraper GD and a plurality of spray heads PLT are arranged at intervals on the side of the first spray station 44 and the second spray station 54 facing the frame 1. During the movement of the first spray station 44 and the second spray station 54 spraying the first to-be-processed printing medium and the second to-be-processed printing medium correspondingly, the scraper GD is located downstream of the corresponding plurality of spray heads PLT. Therefore, by respectively arranging a plurality of spray heads PLT controllable by a processor (to be further described below) on the first spray station 44 and the second spray station 54, it is possible to ensure that the plurality of spray heads PLT The wetting liquid is sprayed in a precise amount of micro-droplets in the form of micro-ink droplets similar to those used in inkjet printing onto the first to-be-processed printing medium and the second to-be-processed printing medium to form a spray layer with suitable flatness. In addition, a scraper GD is further arranged at intervals on the multiple spray heads PLT on the first spray station 44 and the second spray station 54, so that the scraper GD scrapes the spray layer flat to further ensure and adjust the flatness of the spray layer. Moreover, the scraper GD on each spray station moves with the multiple spray heads PLT together with the spray station, and the control reliability of the movement rate is high.

[0043] In one embodiment, a driving cylinder QG movably connected to the scraper GD is correspondingly provided on the first spray station 44 and the second spray station 54. The driving cylinder QG drives the scraper GD to move to adjust the gap between the free end of the scraper GD and the first to-be-processed printing medium and the second to-be-processed printing medium. For example, the gap can be determined according to the thickness and flatness of the spray layer to be obtained, or the gap is the distance from the scraper GD being driven by the driving cylinder QG to descend to the working position for scraping and leveling and rising to the non-working position away from the to-be-processed printing medium in the spray processing step.

[0044] In one embodiment, a connecting plate 49 is fixed on the above-mentioned table body 441, and a driving cylinder QG movably connected to the scraper GD is fixed on the connecting plate 49. The driving cylinder QG drives the scraper GD to move to adjust the gap between the free end of the scraper GD and the first printing medium to be processed. In this way, the driving cylinder QG is firmly fixed on the table body 441 to facilitate precise driving of the scraper GD.

[0045] In one embodiment, there is one driving cylinder QG and it is located in the middle of the length direction of the table body 441, or there are two driving cylinders QG and they are symmetrically arranged relative to the middle of the length direction of the table body 441. It should be noted that the scraper GD is aligned with the table body 441 in the length direction of the table body 441. Therefore, the driving cylinder QG is also correspondingly arranged in the middle of the length direction of the scraper GD or on both sides symmetrically of the middle, which further ensures the precise driving of the driving cylinder QG on the overall movement of the scraper GD.

[0046] refer to Figure 5 and Figure 6, an embodiment of the present invention further provides a spray printing method, which is implemented by any of the above-mentioned spray printing devices. For a detailed description of the specific structure and construction of the spray printing device, please refer to the above. The spray printing device includes a frame 1, a beam 2, a printing carriage 3, a first spray mechanism 4, a first platen 8 and a first guide rail. The beam 2 is arranged above the frame 1 along a first direction. The printing carriage 3 reciprocates on the beam 2. The first guide rail and the first spray mechanism 4 are both arranged on the frame 1 along a second direction. The first platen 8 fixes and drives the first to-be-processed printing medium to reciprocate along the first guide rail on a first path passing through the first initial position CS1, the first spray position PL1 and the first printing position DY1. The first spray mechanism 4 includes a first spray station 44. A scraper GD and a plurality of spray heads PLT are arranged on the side of the first spray station 44 facing the frame 1. The method includes the following steps S11 to S16:

[0047] Step S11: placing the first printing medium to be processed on the first platen 8 located at the first initial position CS1, wherein the placement can be achieved manually or automatically by a device;

[0048] Step S12: driving the first platen 8 to drive the first print medium to be processed to move to the first spraying position PL1 and to be located below the first spraying mechanism 4;

[0049] Step S13: driving the first spray station 44 to move at the first spray position PL1 relative to the first print medium to be processed, a plurality of spray heads PLT spray liquid on the printing area of ​​the first print medium to be processed to form a spray layer, and a scraper GD flattens the spray layer to complete the spraying process, wherein the flattening operation is performed after the spray head PLT has finished working;

[0050] In one embodiment, a driving cylinder QG movably connected to the scraper GD is further provided on the first spray station 44. In step S13, the driving cylinder QG is controlled to drive the scraper GD to move so as to adjust the gap between the free end of the scraper GD and the first print medium to be processed. Therefore, by controlling the operation of the driving cylinder QG to adjust the gap, it is possible to obtain an ideal spray layer thickness, flatness, etc., and it is also possible to control the scraper GD to move relative to the first print medium to be processed only when scraping is required, and to control the scraper GD to return to a position away from the first print medium to be processed when the scraper GD does not need to work, thereby avoiding abnormal wear of the scraper GD.

[0051] Step S14: Check the flatness of the spray layer. If the flatness meets the requirements, proceed to step S15. If the flatness does not meet the requirements, further adjust the flatness of the spray layer until it meets the requirements. The flatness detection can be performed at the first spray position PL1 or at the first initial position CS1. Further flatness adjustment can be performed manually or by equipment.

[0052] In one embodiment, referring to the figure, step S14 includes step S14-1: driving the first platen 8 to move to the first initial position CS1 to detect the flatness or make adjustments based on the detection, that is, at the first initial position CS1, the flatness is detected manually or by equipment or additional adjustments are made, so that the detection and adjustment operations can be facilitated.

[0053] In one embodiment, further adjusting the flatness of the spray layer in the above step S14 includes: driving the first spray station 44 to move at least once at the first spray position PL1 relative to the first to-be-processed printing medium, and controlling multiple spray heads PLT not to work, controlling the driving cylinder QG to drive the scraper GD to move at least once to adjust the gap so that the scraper GD can scrape the spray layer to meet the flatness requirements. In this way, the required flatness can be easily obtained by controlling the number of times the scraper GD is scraped, and the number and gap value can be pre-stored in the instructions in the memory.

[0054] The above-mentioned spray printing method also includes: step S15: driving the first platen 8 to drive the first to-be-processed printing medium that has completed the inspection to move to the first printing position DY1 and below the beam 2, and controlling the printing carriage 3 to reciprocate to complete the printing process of the printing area.

[0055] Step 16: driving the first platen 8 to move the first print medium to be processed that has completed the printing process to the first initial position CS1, and removing the processed first print medium to be processed from the first platen 8.

[0056] In summary, any of the above-mentioned spray printing methods can realize control of the first to-be-processed printing medium to be sprayed and inkjet processed in sequence, thereby achieving high automation, continuous production and high work efficiency, without the need for human intervention, and reducing safety hazards.

[0057] In one embodiment, the spray printing device further includes a second spray mechanism 5, a second platen 9, a second driving mechanism 7 and a second guide rail, the second guide rail and the second spray mechanism 5 are both arranged on the frame 1 along the third direction, the second platen 9 fixes and drives the second to-be-processed printing medium to reciprocate along the second guide rail on a second path passing through the second initial position CS2, the second spray position PL2 and the second printing position DY2, the second spray mechanism 5 includes a second spray station 54, and a scraper GD and a plurality of spray heads PLT are arranged at intervals on the side of the second spray station 54 facing the frame 1. The method further includes:

[0058] Step S21: placing the second print medium to be processed on the second platen 9 located at the second initial position CS2;

[0059] Step S22: driving the second platen 9 to drive the second print medium to be processed to move to the second spraying position PL2 and to be located below the second spraying mechanism 5;

[0060] Step S23: driving the second spray station 54 to move at the second spray position PL2 relative to the second print medium to be processed, a plurality of spray heads PLT spray liquid on the printing area of ​​the second print medium to be processed to form a spray layer, and a scraper GD flattens the spray layer to complete the spray process;

[0061] Step S24: Detect the flatness of the spray layer. If the flatness meets the requirements, proceed to step S25. If the flatness does not meet the requirements, further adjust the flatness of the spray layer until it meets the requirements.

[0062] Step S25: driving the second platen 9 to drive the second to-be-processed printing medium that has completed the inspection to move to the second printing position DY2 and below the beam 2, and controlling the printing carriage 3 to reciprocate to complete the printing process of the printing area;

[0063] Step S26 : driving the second platen 9 to move the second print medium to be processed that has completed the printing process to the second initial position CS2 , and removing the processed second print medium to be processed from the second platen 9 .

[0064] As described above, the spray printing method further includes the steps of successively spraying and inkjetting the second printing medium to be processed. Therefore, the spraying and inkjetting of the first printing medium to be processed and the second printing medium to be processed can be achieved simultaneously, further improving the degree of automation and work efficiency.

[0065] In one embodiment, control step S11 and step S23 are executed simultaneously, and control step S13 and step S21 are executed simultaneously. In this way, the placement and removal of the first print medium to be processed and the second print medium to be processed can be performed alternately, further improving work efficiency.

[0066] In one embodiment, the first spray mechanism 4 further includes a first spray frame 41, a first guide rod 42, a second guide rod 43, a first drive motor 45 and a first transmission member 46, and the second spray mechanism 5 further includes a second spray frame 51, a third guide rod 52, a fourth guide rod 53, a second drive motor 55 and a second transmission member 56. The first guide rod 42 and the second guide rod 43 are arranged parallel to each other along the second direction, and the third guide rod 52 and the fourth guide rod 53 are arranged parallel to each other along the third direction. The second direction is parallel to the third direction, and the second guide rod 43 and the third guide rod 52 are relatively adjacent to each other. The first spray frame 41 supports the first guide rod 42 and the second guide rod 43 on the machine. The second spray frame 51 supports the third guide rod 52 and the second guide rod 43 on the frame 1, and the first spray position PL1 and the second spray position PL2 are respectively located in the areas surrounded by the two opposite free ends of the first guide rod 42 and the second guide rod 43 and the two opposite free ends of the third guide rod 52 and the fourth guide rod 53. The two ends of the first spray station 44 are respectively slidably connected to the first guide rod 42 and the second guide rod 43, and the two ends of the second spray station 54 are respectively slidably connected to the third guide rod 52 and the fourth guide rod 53. The first transmission member 46 and the second transmission member 56 are respectively drivingly connected to the first spray station 44 and the second spray station 54. In step S13, the first drive motor 45 is controlled to drive the first transmission member 46 to drive the first spray station 44 to reciprocate along the first guide rod 42 and the second guide rod 43 to spray and scrape the first to-be-processed printing medium located at the first spray position PL1. In step S23, the second drive motor 55 is controlled to drive the second transmission member 56 to drive the second spray station 54 to reciprocate along the third guide rod 52 and the fourth guide rod 53 to spray and scrape the second to-be-processed printing medium located at the second spray position PL2. Therefore, since the first guide rail and the second guide rail, the first spray mechanism 4 and the second spray mechanism 5 are all arranged parallel and adjacent, the control of the movement of the printing carriage 3 on the beam 2 relative to the first to-be-processed printing medium and the second to-be-processed printing medium can be simplified, thereby improving the printing quality.

[0067] In one embodiment, in step 15, the first platen 8 is controlled to move to the first printing position DY1 and further move simultaneously with the reciprocating movement of the printing carriage 3 to complete the printing process, and in step 25, the second platen 9 is controlled to move to the second printing position DY2 and further move simultaneously with the reciprocating movement of the printing carriage 3 to complete the printing process. In this way, since the lengths of the first path and the second path are shortened, the execution time of the steps of each print medium to be processed in the spray control method of this embodiment is relatively shortened, and the work efficiency is further improved.

[0068] In one embodiment, a driving cylinder QG movably connected to a scraper GD is disposed on the first spray station 44 and the second spray station 54; step S13 includes step S13-1: controlling the movement of the driving cylinder QG according to the material of the first printing medium to be processed to adjust the gap between the free end of the scraper GD and the first printing medium to be processed for corresponding scraping treatment; step S23 includes step S23-1: controlling the movement of the driving cylinder QG according to the material of the second printing medium to be processed to adjust the gap between the free end of the scraper GD and the second printing medium to be processed for corresponding scraping treatment. Therefore, the two scraping treatments can be specifically controlled according to whether the materials of the first printing medium to be processed and the second printing medium to be processed are the same or different, so that the spray printing method of this embodiment is particularly suitable for situations where the printing media to be processed are different, and each printing medium to be processed and the corresponding gap value can be pre-stored in the instructions in the memory.

[0069] In one embodiment, a flatness detection device is provided on the side of the first spray station 44 facing the frame 1, and step S14 includes step S14-2: controlling the flatness detection device to perform flatness detection on the spray layer that has been scraped and leveled. In this way, the flatness detection and the spraying treatment can be carried out simultaneously, and the spraying of the spray head PLT and the scraping of the scraper GD can be dynamically adjusted according to the detection results of the flatness detection device, thereby improving the flatness quality of the spray layer.

[0070] In one embodiment, a first position detector for detecting the movement position of the first spray station 44 in the second direction is provided on the first guide rod 42 or / and the second guide rod 43, a second position detector for detecting the movement position of the second spray station 54 in the third direction is provided on the third guide rod 52 or / and the fourth guide rod 53, a third position detector and a fourth position detector are respectively provided at the two free ends of the first guide rail and the second guide rail respectively located at the first initial position CS1 and the second initial position CS2, the third position detector and the fourth position detector are respectively used to detect the movement positions of the first platen 8 and the second platen 9 corresponding to the first guide rail and the second guide rail, in step S13 and step S15, the spraying process and the printing process are respectively controlled to be completed according to the detection results of the first position detector and the third position detector, and in step S23 and step S25, the spraying process and the printing process are respectively controlled to be completed according to the detection results of the second position detector and the fourth position detector, so that by setting a corresponding pair of position detectors, it can be ensured that the spraying process and the printing process of the two printing media to be processed are respectively and accurately completed.

[0071] refer to Figure 7The present invention also provides a spray printing device corresponding to the spray printing method of the above embodiment, and the spray printing device includes: at least one processor 701; and a memory 702 connected to the at least one processor in communication; wherein the memory 702 stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor 701, so that the at least one processor 701 can execute the spray printing method in any of the above embodiments. For a detailed description of the spray printing device, please refer to the above, which will not be repeated here.

[0072] Specifically, the processor 701 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiment of the present invention.

[0073] The memory 702 may include a large capacity memory for data or instructions. For example, but not limitation, the memory 702 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive or a combination of two or more of these. In appropriate cases, the memory 702 may include a removable or non-removable (or fixed) medium. In appropriate cases, the memory 702 may be inside or outside the data processing device. In a specific embodiment, the memory 702 is a non-volatile solid-state memory. In a specific embodiment, the memory 702 includes a read-only memory (ROM). In appropriate cases, the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically rewritable ROM (EAROM) or a flash memory or a combination of two or more of these.

[0074] The processor 701 reads and executes computer program instructions stored in the memory 702 to implement any one of the spray printing methods in the above embodiments.

[0075] In one example, the spray printing device may further include a communication interface 703 and a bus 710. The processor 701, the memory 702, and the communication interface 703 are connected via the bus 710 and communicate with each other.

[0076] The communication interface 703 is mainly used to implement communication between various modules, devices, units and / or equipment in the embodiment of the present invention.

[0077] Bus 710 includes hardware, software or both, and the components of guide rail, spray station, drive motor, etc. in the control or drive spray printing device are coupled to each other. For example, but not limitation, the bus may include accelerated graphics port (AGP) or other graphics bus, enhanced industrial standard architecture (EISA) bus, front-end bus (FSB), hypertransport (HT) interconnection, industrial standard architecture (ISA) bus, infinite bandwidth interconnection, low pin count (LPC) bus, memory bus, micro channel architecture (MCA) bus, peripheral component interconnection (PCI) bus, PCI-Express (PCI-X) bus, serial advanced technology attachment (SATA) bus, video electronics standard association local (VLB) bus or other suitable bus or two or more of these combinations. In appropriate cases, bus 710 may include one or more buses. Although the embodiment of the present invention describes and shows a specific bus, the present invention considers any suitable bus or interconnection.

[0078] It should be noted that the print media to be processed described above include textiles such as cloth and clothes, and also include industrial products such as paper, plastic, and metal. The present invention is described by taking textiles as an example.

[0079] It should be emphasized that the above mainly uses the structure and construction of the first spray mechanism, the first platen and the first guide rail as an example to explain in detail the spraying and printing of the first print medium to be processed. The second spray mechanism, the second platen and the second guide rail, etc. and the spraying and printing of the second print medium to be processed can be understood by reference.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. Spray printing equipment, characterized in that, It includes a frame, a crossbeam, a printing carriage, a first spray mechanism, a first platen, a first driving mechanism and a first guide rail; The crossbeam is arranged above the frame along the first direction, and the printing carriage reciprocates on the crossbeam; The first guide rail and the first spray mechanism are both arranged on the frame along the second direction, and the first direction is perpendicular to the second direction; The first platen drives the first print medium to be processed to reciprocate along the first guide rail on a first path passing through a first initial position, a first spraying position and a first printing position; The first spray mechanism includes a first spray frame, a first guide rod, a second guide rod, a first spray station, a first drive motor and a first transmission member, the first guide rod and the second guide rod are arranged parallel to each other along a second direction, the first spray position is located in an area surrounded by two opposite free ends of the first guide rod and the second guide rod, the first spray frame supports the first guide rod and the second guide rod on the frame, two ends of the first spray station are slidably connected to the first guide rod and the second guide rod respectively, the first transmission member is drivingly connected to the first spray station and drives the first spray station to reciprocate along the first guide rod and the second guide rod under the drive of the drive motor to spray the printing area of ​​the first to-be-processed printing medium located at the first spray position; The first spray station includes a station body, and a hollow sliding sleeve slidably matched with a first guide rod and a second guide rod is respectively provided at both ends of the station body, and a support plate is fixed on one side of the station body facing the first spray position, and a plurality of spray heads are fixed on the support plate; A fixing plate is provided on the upper part of the first spray station, the fixing plate is located in the middle of the length direction of the station body, and the two ends of the fixing plate are fixedly connected to the transmission member and the station body respectively; The first spray mechanism also includes a plurality of spray pipes. A scraper and a plurality of spray heads are arranged at intervals on one side of the first spray table facing the frame. The table body is hollow and has a plurality of openings. The plurality of spray pipes are arranged in the table body and are connected to the plurality of spray heads through the plurality of openings. A distance detector is arranged on the support plate, and the distance detector is used to detect the relative distance between the first print medium to be processed and the plurality of spray heads, and the plurality of spray heads spray accordingly according to the detection result of the relative distance.

2. The spray printing device according to claim 1, characterized in that: The first spray rack includes four support columns and two support rods. The first guide rod, the second guide rod and the two support rods form a rectangle. The first drive motor and the fixed seat are supported on the two support rods respectively. The first transmission member is arranged between the first drive motor and the fixed seat.

3. The spray printing device according to claim 2, characterized in that: The first transmission member is a transmission belt, the fixed seat includes a transmission wheel arranged therein, and two ends of the transmission belt are respectively hooped on the rotating wheel and the transmission wheel of the first driving motor.

4. The spray printing device according to any one of claims 1 to 3, characterized in that: The spray printing device also includes a second spray mechanism, a second platen and a second guide rail. The second spray mechanism has the same structure as the first spray mechanism. The second spray mechanism includes a second spray frame, a third guide rod, a fourth guide rod, a second spray station, a second drive motor and a second transmission member. The second guide rail and the second spray mechanism are both arranged on the frame along the third direction, the second direction and the third direction are arranged to be parallel to each other and perpendicular to the first direction, and the second platen drives the second print medium to be processed to reciprocate along the second guide rail on a second path passing through the second initial position, the second spray position and the second print position; When the second platen is located at the second initial position, the unprocessed second print medium to be processed is placed on the second platen or the processed second print medium to be processed is removed from the second platen, and when the second platen moves to the second spray position, the second spray mechanism sprays the second print medium to be processed, and when the second platen moves to the second printing position, the printing carriage prints the sprayed second print medium to be processed.

Images