Double-beam digital printing machine

Abstract

The application relates to the technical field of digital printing machines, and discloses a double-beam digital printing machine. A printing trolley is slidably connected with a first beam and a second beam through the movers on the two sides of the printing trolley. The double beams can provide a large lifting force. The top and the side of the beams are both provided with first sliding rails. The increase of the first sliding rails on the top and the side increases the stress on the sliding rails. Under the large weight of the printing trolley, the stability of the printing trolley during operation can be improved. The first sliding rails on the top of the beams can increase the bearing force, and the first sliding rails on the side can improve the operation accuracy. The driving of the printing trolley is simultaneously realized through a linear motor and the movers. The linear motor is arranged above the beams, and the structure is simple, the installation accuracy can be easily ensured, the thrust can be increased, the movers of the movers are electrified, a magnetic induction effect is generated, a thrust is provided to the printing trolley, the two sides of the movers are controlled in parallel, the two movers can be synchronously driven, the driving force can be kept synchronous, the accuracy can be precisely controlled, and the printing stability and the accuracy can be effectively ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of digital printing machines, in particular to a double-beam digital printing machine. BACKGROUND

[0002] The digital printing machine is an industry of large-format printers, for example, a plotter is similar in the CAD field, and the ink characteristics thereof are water-based dispersion ink. The digital printing machine is used for printing on transfer paper or cloth, and is mainly applied to the printing and dyeing of clothing fabrics.

[0003] A conventional digital printing machine has a structure of 8 nozzles, 16 nozzles, or more than 32 nozzles. The single-beam structure of the digital printing machine can meet the requirements of printing precision, and the entire machine device occupies an area of about 5 square meters or less. However, for the digital printing machine with more nozzles, especially the digital printing machine with more than 100 nozzles, the entire machine device occupies an area of at least 30 square meters, and the printing trolley is very heavy. Due to the weight, the single-beam structure cannot meet the printing requirements in terms of stability and precision. SUMMARY

[0004] Based on the above, the purpose of the present application is to provide a double-beam digital printing machine that can meet the stability and precision requirements of more than 100 nozzles.

[0005] To achieve the above purpose, the present application adopts the following technical solutions:

[0006] The present application provides a double-beam digital printing machine, comprising:

[0007] A rack comprising a main rack and two groups of support racks, the two groups of support racks are respectively arranged on the two sides of the main rack, the main rack and the support racks are not connected, the main rack is provided with a tape conveying mechanism and a tape cleaning mechanism, the support racks are provided with a first beam and a second beam, the first beam and the second beam are arranged in parallel alignment, the top and side surface of the first beam and the second beam are provided with a first sliding rail, the top of the first beam and the second beam is respectively provided with a linear motor, and the first beam and the second beam are provided with a plurality of stator plates along the length direction thereof;

[0008] A printing trolley is slidingly arranged between the first beam and the second beam, the output ends of the two groups of linear motors are connected to the printing trolley in a one-to-one connection manner, the two sides of the printing trolley are provided with a mover plate, the mover plate is provided with a first sliding block corresponding to the first sliding rail, the mover plate is provided with at least two groups of movers, and the printing trolley is provided with more than 100 nozzles;

[0009] A cleaning and moisturizing mechanism is arranged on one of the support racks, and is used for cleaning and moisturizing the nozzles.

[0010] The upper cloth mechanism is used for conveying the printing medium to the guide belt conveying mechanism.

[0011] Further, the printing trolley comprises a trolley bottom frame, a trolley top frame and two trolley side frames;

[0012] The trolley side frame is slidingly connected to the second sliding block;

[0013] A plurality of first nozzle mounting grooves are formed on the trolley bottom frame, and a plurality of nozzles are arranged on the first nozzle mounting grooves in a one-to-one manner;

[0014] First trolley mounting frames are arranged on the front and rear sides of the trolley side frame close to the top, and an ink cartridge frame is connected between the two groups of first trolley mounting frames;

[0015] A maintenance avoiding opening is formed below the first trolley mounting frame;

[0016] The trolley top frame comprises a top horizontal frame and a top vertical frame, and a wire routing groove is formed on the top horizontal frame and the top vertical frame, and a wire dropping opening is further formed on the top horizontal frame.

[0017] Further, first hinged frames are arranged on the front and rear sides of the trolley side frame close to the bottom, two groups of second hinged frames are respectively arranged on the front and rear sides of the trolley bottom frame, and the second hinged frames are arranged on the front and rear sides of the trolley bottom frame close to the middle part; a screw rod is hingedly connected to the first hinged frame at one end and to the second hinged frame at the other end.

[0018] Further, the mover plate comprises a mover horizontal plate and a mover vertical plate, a reinforcing block is arranged between the mover horizontal plate and the mover vertical plate, and the first sliding block is arranged on the mover horizontal plate and the mover vertical plate;

[0019] A plurality of weight-reducing grooves are formed on one side of the mover vertical plate;

[0020] A second sliding rail is formed on the other side of the mover vertical plate, a second sliding block is slidingly arranged on the second sliding rail, and the second sliding block is connected to the printing trolley.

[0021] Further, the length of the stator plate is L2, the distance between the heads of two adjacent movers is L1, and L1 is an integer multiple of L2.

[0022] Further, the main frame is further connected to an on-line slurry coating device;

[0023] The online coating device comprises two coating chassis, two coating fixing frames, a coating mesh roller and a coating pipe, the two coating chassis are connected through a coating fixing rod, the coating fixing frames are arranged on the coating chassis in a one-to-one sliding mode, the coating mesh roller is rotatably arranged between the two coating fixing frames, the coating mesh roller is a hollow circular roller structure, a plurality of coating holes are formed in the coating mesh roller, and the coating pipe extends into the coating mesh roller.

[0024] The online coating device further comprises a first coating driving module and a second coating driving module, the guide belt of the double-beam digital printing machine moves in a first direction, the coating mesh roller is perpendicular to the guide belt in position, the first coating driving module is used for driving the coating fixing frames to reciprocally move in the first direction, so that the coating mesh roller reciprocally moves in the first direction and parallel to the guide belt, and the second coating driving module is used for driving the coating mesh roller to rotate.

[0025] Further, the cleaning and moisturizing mechanism comprises a cleaning device and a moisturizing device, the cleaning device comprises a cleaning cavity, the moisturizing device comprises a moisturizing cavity, the bottom of the cleaning device is provided with a first flow guide pipe, one end of the first flow guide pipe is in communication with the cleaning cavity, the bottom of the moisturizing cavity is in communication with a second flow guide pipe, the second flow guide pipe is in communication with the moisturizing cavity, the top end surface of one side of the second flow guide pipe in communication with the moisturizing cavity is higher than the bottom surface of the moisturizing cavity, the first flow guide pipe and the second flow guide pipe are in communication, and a water electromagnetic valve is arranged between the first flow guide pipe and the second flow guide pipe.

[0026] Further, the cleaning device comprises a scraper part, the scraper part comprises a scraper mounting plate, two ends of the scraper mounting plate are respectively connected with two groups of the conveying belts in a one-to-one mode, at least two groups of scraper mounting seats are arranged on the scraper mounting plate, the scraper mounting seat comprises a scraper mounting base and a scraper mounting inclined seat, front and rear scrapers are arranged on the front side and the rear side of the scraper mounting inclined seat respectively, the front side of the scraper mounting inclined seat comprises a first supporting surface and a first inclined surface, the bottom surface of the front scraper is tightly attached to the first supporting surface, the side surface of the front scraper is tightly attached to the first inclined surface, the front scraper is fixed on the front side of the scraper mounting inclined seat through a first scraper fixing plate, the rear side of the scraper mounting inclined seat comprises a second supporting surface and a second inclined surface, the bottom surface of the rear scraper is tightly attached to the second supporting surface, the side surface of the rear scraper is tightly attached to the second inclined surface, the rear scraper is fixed on the rear side of the scraper mounting inclined seat through a second scraper fixing plate, and the height of the top of the front scraper is higher than the height of the top of the rear scraper.

[0027] Further, the cloth feeding mechanism comprises a cloth feeding frame, a spreading roller is rotatably arranged on the cloth feeding frame, and a plurality of separation grooves are arranged in the middle of the spreading roller.

[0028] Further, the support frame is provided with an adjusting mechanism, the first cross beam and the second cross beam are arranged on the adjusting mechanism respectively, the adjusting mechanism is adjusted to make the first cross beam and the second cross beam keep parallel and aligned, the adjusting mechanism comprises an adjusting fixed plate fixedly connected to the upper side of the support frame, a first adjusting plate connected to the upper side of the adjusting fixed plate and configured to be adjusted along a first direction, and a second adjusting plate connected to the upper side of the first adjusting plate and configured to be adjusted along a second direction, the first cross beam and the second cross beam are connected to the upper side of the adjusting mechanism respectively, and the first direction and the second direction are perpendicular.

[0029] Further, the first adjusting plate comprises a first lower adjusting plate and a first upper adjusting plate, the first upper adjusting plate is arranged on the upper side of the first lower adjusting plate, first adjusting steps are formed between the two side edges of the first lower adjusting plate and the first upper adjusting plate in a staggered manner, a plurality of first U-shaped connecting holes are formed on the first adjusting steps and extend along the first direction, a plurality of first connecting holes are formed on the first upper adjusting plate, and a plurality of fixed connecting holes corresponding to the first U-shaped connecting holes are formed on the adjusting fixed plate.

[0030] Further, the second adjusting plate comprises a second lower adjusting plate and a second upper adjusting plate, the second upper adjusting plate is arranged on the upper side of the second lower adjusting plate, second adjusting steps are formed between the two side edges of the second lower adjusting plate and the second upper adjusting plate in a staggered manner, a plurality of second U-shaped connecting holes are formed on the second adjusting steps and extend along a second direction, the second U-shaped connecting holes correspond to the first connecting holes, a second connecting hole is formed on the second upper adjusting plate, and the first cross beam and the second cross beam are connected to the second adjusting plate through the second connecting hole.

[0031] The beneficial effects of the present application are as follows:

[0032] The present application provides a kind of double beam digital printing machine, printing trolley is slidably connected with first cross beam and second cross beam by the mover plate of its two sides, double beam can provide huge lifting force, while the top and side of cross beam are provided with first slide rail, the top and side increase first slide rail, so that the stress of slide rail increases, under the huge weight of printing trolley, the stability when printing trolley runs can be increased;More specifically, the first slide rail located at the top of cross beam can increase bearing force, while the first slide rail located at the side can increase running accuracy.Further, the drive of printing trolley is driven by linear motor and mover plate simultaneously, linear motor is located above cross beam, simple structure, and can easily guarantee installation accuracy, increase thrust, and the mover of mover plate is powered, generates magnetic induction effect, also gives printing trolley a thrust, while the two sides of mover plate adopt parallel control mode, can guarantee that two mover plates are driven synchronously, and driving force remains synchronous, while accurate control, effectively guarantee printing stability and accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to the contents of the embodiments of the present application and these drawings without creative labor.

[0034] Figure 1 The structure diagram of printing trolley and double beam provided for the present embodiment is shown in the following figure:

[0035] Figure 2 The partial structure diagram of mover plate and stator plate provided by the present embodiment is shown in the following figure:

[0036] Figure 3 The structure diagram of mover plate provided for the present embodiment is shown in the following figure:

[0037] Figure 4 Another visual structure diagram of mover plate provided for the present embodiment is shown in the following figure:

[0038] Figure 5 The partial structure diagram of printing trolley provided for the present embodiment is shown in the following figure:

[0039] Figure 6 The partial structure diagram of first cross beam and printing trolley provided for the present embodiment is shown in the following figure:

[0040] Figure 7 The structure diagram of rack and double beam and online coating device provided for the present embodiment is shown in the following figure:

[0041] Figure 8 The structure diagram of cleaning and moisturizing device provided for the present embodiment is shown in the following figure:

[0042] Figure 9 Another visual structural schematic view of the cleaning and moisturizing device provided in the embodiment;

[0043] Figure 10 A partial exploded structural schematic view of the cleaning and moisturizing device provided in the embodiment;

[0044] Figure 11 An enlarged structural schematic view of A in Figure 10

[0045] Figure 12 A structural schematic view of the scraping piece part provided in the embodiment;

[0046] Figure 13 A structural schematic view of the cloth feeding mechanism provided in the embodiment;

[0047] Figure 14 Another visual structural schematic view of the cloth feeding mechanism and the printing medium cooperation provided in the embodiment;

[0048] Figure 15 An enlarged structural schematic view of A in Figure 14 A structural schematic view along the direction of A-A1 section;

[0049] Figure 16 A structural schematic view of the support frame provided in the embodiment;

[0050] Figure 17 An exploded structural schematic view of the adjusting mechanism provided in the embodiment;

[0051] Figure 18 A structural schematic view of the online slurry coating device provided in the embodiment;

[0052] Figure 19 A cross-sectional structural schematic view of the online slurry coating device provided in the embodiment. DETAILED DESCRIPTION

[0053] In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present application will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0054] ​In the description of the application, unless otherwise clearly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0055] In the present application, unless otherwise clearly specified and limited, "on" or "under" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0056] In the description of the present embodiment, the terms "up", "down", "left", "right", and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0057] As Figures 1 to 17The embodiment of the present application provides a double-beam digital printing machine, which comprises a rack 1, two groups of support frames 12 and a main frame 11, the two groups of support frames 12 are arranged on the two sides of the main frame 11, the main frame 11 and the support frames 12 are not connected, the main frame 11 is provided with a guide belt conveying mechanism (not shown in the figure) and a guide belt cleaning mechanism (not shown in the figure), the guide belt conveying mechanism and the guide belt cleaning mechanism are prior art, and details are not repeated here, the support frames 12 are provided with a first beam 21 and a second beam 22, the first beam 21 and the second beam 22 are arranged in parallel, the main frame 1 and the support frames 12 are not connected, so that the stability of the support frames 12 is not affected by vibration of the main frame 1, thereby the stability of the first beam 21 and the second beam 22 is not affected, and the printing precision is not affected, the top and the side of the first beam 21 and the second beam 22 are provided with a first sliding rail 23, the top of the first beam 21 and the second beam 22 is further provided with a linear motor 24, and the first beam 21 and the second beam 22 are provided with a plurality of stator plates 25 along the length direction; a printing trolley 3 is slidably arranged between the first beam 21 and the second beam 22, the output ends of the two groups of linear motors 24 are connected to the printing trolley 3 in a one-to-one manner, the two sides of the printing trolley 3 are provided with a movable plate 26, the movable plate 26 is provided with a first sliding block 263 corresponding to the first sliding rail 23, the movable plate 26 is provided with at least two groups of movable plates 265, and the printing trolley 3 is provided with more than 100 nozzles 312; a cleaning and moisturizing mechanism is arranged on one of the support frames 12 and used for cleaning and moisturizing the nozzles 312; and a cloth feeding mechanism is used for conveying printing medium to the guide belt conveying mechanism.

[0058] The embodiment of the present application provides a double-beam digital printing machine, a feeding roller (not shown in the figure) transports the printing medium in a roll to a cloth feeding mechanism, the cloth feeding mechanism transports the printing medium to a guide belt conveying mechanism after expanding and tensioning, the guide belt conveying mechanism transports the printing medium below a printing trolley 3, the printing trolley 3 is driven to slide between a first beam 21 and a second beam 22 by a linear motor 24 and a mover plate 26 below the printing trolley 3, a nozzle 312 on the printing trolley 3 performs inkjet printing on the printing medium, after printing is completed, the guide belt conveying mechanism transports the printing medium to a winding roller (not shown in the figure), a guide belt cleaning mechanism cleans the belt of the guide belt conveying mechanism, and after printing is finally completed, a nozzle cleaning and moisturizing mechanism cleans and moisturizes the nozzle 312. In the embodiment of the present application, the printing trolley 3 is slidably connected with the first beam 21 and the second beam 22 through the mover plates 26 on both sides of the printing trolley 3, the double beams can provide a large lifting force, the top and the side of the beam are both provided with the first slide rail 23, the top and the side increase the first slide rail 23 to increase the stress of the slide rail, under the large weight of the printing trolley 3, the stability of the printing trolley 3 when running can be increased, more specifically, the first slide rail 23 on the top of the beam can increase the bearing force, and the first slide rail 23 on the side can increase the running accuracy. Further, the driving of the printing trolley 3 is simultaneously driven by the linear motor 24 and the mover plate 26, the linear motor 24 is located above the beam, the structure is simple, and the installation accuracy can be easily ensured, the thrust is increased, the mover 265 of the mover plate 26 is electrified to generate a magnetic induction effect, and a thrust is also given to the printing trolley 3, the mover plates 26 on both sides adopt a parallel control mode, the two mover plates 26 can be synchronously driven, the driving force is kept synchronous, and the printing stability and the accuracy are effectively ensured.

[0059] In some embodiments, as Figure 5 and 6As shown, the printing trolley 3 comprises a trolley chassis 31, a trolley top frame 33 and two trolley side frames 32; the trolley side frame 32 is slidingly connected to the second sliding block 268; a plurality of first nozzle mounting grooves 311 are formed in the trolley chassis 31, and a plurality of nozzles 312 are arranged in the first nozzle mounting grooves 311 in a one-to-one manner; a first trolley mounting frame 34 is arranged on the front and rear sides of the trolley side frame 32 close to the top, and an ink cartridge holder 35 is connected between the two groups of first trolley mounting frames 34, which is located directly above the nozzles 312 and can be used to install an ink cartridge; since the number of nozzles 312 exceeds 100, the entire printing trolley 3 exceeds 3 cubic meters, and maintenance becomes a difficult problem; the traditional maintenance is to disassemble the entire printing trolley 3, but for the printing trolley 3 with more than 100 nozzles 312, if the entire printing trolley 3 is disassembled, the first problem is that it is not convenient to disassemble due to the large weight, and the second problem is that it is not convenient to disassemble due to the large number of nozzles 312; in the embodiment, a maintenance avoiding opening 36 is formed below the first trolley mounting frame 34, and a maintenance avoiding opening 36 is formed below the first trolley mounting frame 34, which can facilitate maintenance personnel to maintain the inside of the printing trolley 3 from the maintenance avoiding opening 36; the trolley top frame 33 comprises a top horizontal frame 331 and a top vertical frame 332, a wiring groove 333 is formed in the top horizontal frame 331 and the top vertical frame 332, and a cable falling opening 334 is also formed in the top horizontal frame 331; the cable can be routed out through the wiring groove 333 and fall into the cable falling opening 334 to connect the ink cartridge or the nozzle 312, fully utilizing the space of the top frame, and the cable routing is neat and consistent, which is convenient for maintenance. In order to isolate dust, a dust cover 30 is further arranged on the front and rear sides and the top of the printing trolley 3.

[0060] In some embodiments, as Figure 5 and 6As shown, the first hinge frame 37 is arranged at the front and rear of the trolley side frame 32 close to the bottom, and two groups of second hinge frames 38 are respectively arranged at the front and rear of the trolley base frame 31 close to the middle. The screw rod 39 is hingedly connected to the first hinge frame 37 at one end and to the second hinge frame 38 at the other end. In this embodiment, the middle part of the trolley base frame 31 is connected to the top of the trolley side frame 32 by the screw rod 39, and then the screw rod 39 is rotated to be locked, so that the middle part of the trolley base frame 31 is pulled by the trolley side frame 32 through the screw rod 39. When the printing trolley 3 is running, the trolley base frame 31 is supported by the pulling force from both sides and the middle part, preventing shaking and effectively ensuring printing accuracy. At the same time, the design of the screw rod 39 does not affect the maintenance avoiding port 36, and the design of the first hinge frame 37, the second hinge frame 38 and the screw rod 39 needs to consider whether it will excessively increase the weight of the printing trolley 3. The first hinge frame 37, the second hinge frame 38 and the screw rod 39 in this embodiment are not only small in structure, but also made of aluminum alloy material, which is lighter in weight and better in hardness.

[0061] In some embodiments, as Figures 2 to 4As shown, the mover plate 26 includes a mover horizontal plate 261 and a mover vertical plate 262, and a reinforcing block 264 is arranged between the mover horizontal plate 261 and the mover vertical plate 262, the reinforcing block 264 is used to increase the stress of the mover plate 26, one side of the reinforcing block 264 is connected with the mover horizontal plate 261, the other side of the reinforcing block 264 is connected with the mover vertical plate 262, and the first sliding block 263 is arranged on the mover horizontal plate 261 and the mover vertical plate 262; a plurality of lightening grooves 266 are arranged on one side of the mover vertical plate 262, because the weight of the printing trolley 3 is already very large, the plurality of lightening grooves 266 are arranged on the mover plate 26 to avoid increasing the weight of the printing trolley 3, so as to achieve the purpose of lightening; a second sliding rail 267 is arranged on the other side of the mover vertical plate 262, a second sliding block 268 is arranged on the second sliding rail 267 in a sliding manner, the second sliding block 268 is connected with the printing trolley 3, and the second sliding rail 267 extends along the third direction Z; the second sliding block 268 is driven to slide on the second sliding rail 267 by the driving mechanism, so that the printing trolley 3 can move up and down along the third direction Z. Further, the length of the stator plate 25 is L2, and the distance between the heads of two adjacent mover plates 265 is L1, wherein L1 is an integer multiple of L2. In the embodiment of the application, when the mover 265 is powered, a magnetic induction effect is generated, the printing trolley 3 can be driven to push, the printing trolley 3 is simultaneously driven by the double-beam linear motor 24 and the mover plate 26, under the premise that the number of nozzles 312 is more than 100, the mover plate 26 drives to provide a large enough driving force on one hand, and the two mover plates 26 adopt a parallel control mode to ensure that the two mover plates 26 are synchronously driven and the driving force is kept synchronous, and the printing stability and precision are effectively ensured by precise control. The parallel control means that the two mover plates 26 are connected in parallel, in the case that the resistance and voltage of the mover plate 26 are the same, the generated current is the same, and the magnetic induction effect of the two mover plates 26 is also the same, so that the synchronism of the two mover plates 26 is ensured. Further, the mover 265 on the mover plate 26 adopts a multi-mover 265 structure, and the plurality of movers 265 can provide a larger driving thrust to the printing trolley 3; meanwhile, the distance L1 between the heads of adjacent mover plates 26 is an integer multiple of the length L2 of the stator plate 25, in this embodiment, L1=L2, so that the thrust directions provided by the movers 265 are consistent, and the opposite thrust between the movers 265 can be overcome.

[0062] In some embodiments, as Figures 8 to 12As shown, the cleaning and moisturizing mechanism comprises a cleaning device 5 and a moisturizing device 6, the cleaning device 5 comprises a cleaning cavity 51, the moisturizing device 6 comprises a moisturizing cavity 61, the bottom of the cleaning device 5 is provided with a first flow guide pipe 71, one end of the first flow guide pipe 71 communicates with the cleaning cavity 51; the bottom of the moisturizing cavity 61 is communicated with a second flow guide pipe 72, the second flow guide pipe 72 communicates with the moisturizing cavity 61, the top end surface of the side of the second flow guide pipe 72 communicating with the moisturizing cavity 61 is higher than the bottom surface of the moisturizing cavity 61, the first flow guide pipe 71 and the second flow guide pipe 72 communicate, and a water electromagnetic valve 73 is further arranged between the first flow guide pipe 71 and the second flow guide pipe 72. The printing carriage 3 completing printing is first moved above the cleaning device 5, the blade of the nozzle 312 is cleaned by the cleaning device 5, the water in the cleaning cavity 51 is communicated through the first flow guide pipe 71 and the second flow guide pipe 72, the water is transported into the moisturizing box 62 through the water electromagnetic valve 73, and secondary circulation utilization is carried out, so that the water is used for moisturizing, water waste is reduced, and printing cost is reduced. The bottom of the first flow guide pipe 71 is further communicated with a third flow guide pipe 74, and the third flow guide pipe 74 is provided with a first manual valve 741. Because the water for cleaning the nozzle 312 is huge, the excess water can be controlled to be discharged from the third flow guide pipe 74 through the first manual valve 7417, and simultaneously the third flow guide pipe 74 can also be communicated to the guide belt cleaning mechanism, and the water can be used for cleaning the belt of the guide belt conveying mechanism, and is further recycled. The bottom of the moisturizing device 6 is further connected with a fourth flow guide pipe 75, and the fourth flow guide pipe 75 communicates with the moisturizing cavity 61. When moisturizing is not needed, the water in the moisturizing cavity 61 can be discharged from the fourth flow guide pipe 75. The bottom of the cleaning box 52 is further communicated with a fifth flow guide pipe 76, and the fifth flow guide pipe 76 is provided with a second manual valve 761. The fifth flow guide pipe 76 is used for conveying cleaning water into the cleaning box 52.

[0063] In some embodiments, as Figures 8 to 12As shown, the cleaning device 5 includes: a cleaning box 52, the cleaning chamber 51 is arranged in the cleaning box 52; a cleaning drive unit 53, which is arranged in the cleaning box 52; a scraper unit, the output of the cleaning drive unit 53 is connected to the scraper unit, and is used to scrape out the ink from the nozzle 312; the cleaning drive unit 53 includes a driving shaft 531, which is rotatably arranged on one side of the cleaning box 52; a driven shaft 532, which is rotatably arranged on the other side of the cleaning box 52; two groups of conveying belts 533, which are parallelly sleeved between the driving shaft 531 and the driven shaft 532, and a number of scraper units are arranged between the two groups of conveying belts 533; a cleaning drive motor 534, the output end of which is provided with a reducer 535, and the reducer 535 is coaxially connected to the driving shaft 531. The scraper portion includes a scraper mounting plate 54, both ends of which are connected to two groups of conveyor belts 533 in a one-to-one manner; at least two groups of scraper mounting seats 55 are provided on the scraper mounting plate 54, the scraper mounting seat 55 includes a scraper mounting base 551 and a scraper mounting inclined seat 552, the front and rear sides of the scraper mounting inclined seat 552 are respectively provided with a front scraper 56 and a rear scraper 57, the front side of the scraper mounting inclined seat 552 includes a first supporting surface 5522 and a first inclined surface 5521, the bottom surface of the front scraper 56 is in close contact with the first supporting surface 5522, the side surface of the front scraper 56 is in close contact with the first inclined surface 5521, and the first scraper fixing plate 56 is provided with a first scraper 56. The front scraper 56 is fixed to the front side of the scraper mounting bracket 552. The rear side of the scraper mounting bracket 552 includes a second supporting surface 5524 and a second inclined surface 5523. The bottom surface of the rear scraper 57 is in close contact with the second supporting surface 5524, and the side surface of the rear scraper 57 is in close contact with the second inclined surface 5523. The rear scraper 57 is fixed to the rear side of the scraper mounting bracket 552 via a second scraper fixing plate 571. The top of the front scraper 56 is higher than the top of the rear scraper 57. The front scraper 56 and the rear scraper 57 have different heights, one for heavy scraping and the other for light scraping, ensuring that the ink is completely scraped off after two scrapings. When the print carriage 3 moves above the cleaning tank 52, the cleaning drive motor 534 drives the driving shaft 531 to rotate, which in turn drives the conveyor belt 533 to move. The conveyor belt 533 drives the scraper blade to move, and the scraper blade scrapes the ink off the nozzle 312. Furthermore, when scraping out the ink, a double scraper structure is adopted. The front scraper 56 first passes through the nozzle 312 to complete one scraping of ink, and the rear scraper 57 passes through the nozzle 312 again to complete a second scraping of ink. The two scrapers scrape the nozzle 312 twice at a time, scraping off excess ink at one time, improving efficiency and eliminating the need for secondary scraping of ink.Further, the moisturizing device 6 comprises a moisturizing box 62, the moisturizing cavity 61 is arranged in the moisturizing box 62, a silica gel gasket 65 is arranged around the top of the moisturizing box 62, and the silica gel gasket 65 is clamped into the moisturizing cavity 61 when the printing trolley 3 moves above the paper moisturizing box 62, and the silica gel gasket 65 plays a sealing and buffering role; a supporting plate 64 is arranged at the bottom of the moisturizing cavity 61 in the moisturizing box 62, a mesh frame 63 is placed on the supporting plate 64, and a plurality of moisturizing through holes are formed in the mesh frame 63. Moisture is transmitted through the moisturizing through holes.

[0064] In some embodiments, as Figures 13 to 15As shown, the upper cloth mechanism comprises an upper cloth frame, the upper cloth frame 9 is provided with a spreader 96 which is rotatably arranged, and a plurality of separation grooves 961 are arranged in the middle of the spreader 96. Specifically, the upper cloth mechanism further comprises an upper cloth roller set 91 which is rotatably arranged on the upper cloth frame 9, the upper cloth roller set 91 comprises a first linkage frame 911 which is rotatably connected with the upper cloth frame 9, and an upper cloth roller one 912 and an upper cloth roller two 913 are rotatably arranged on both sides of the first linkage frame 911, and it should be noted that the first linkage frame 911 can be driven to rotate by a driving mechanism; a first tension roller set 92 which is rotatably arranged on the upper cloth frame 9 and located at the rear side of the upper cloth roller set 91, the first tension roller set 92 comprises a second linkage frame 921 which is rotatably connected with the upper cloth frame 9, and a first tension roller one 922 and a second tension roller 94 two are rotatably arranged on both sides of the second linkage frame 921, and it should be noted that the second linkage frame 921 can be driven to rotate by a driving mechanism; a second tension roller 94 which is rotatably arranged on the upper cloth frame 9 and located at the rear side of the first tension roller set 92; a third tension roller 95 which is rotatably arranged on the upper cloth frame 9 and located below the rear side of the second tension roller 94; the spreader 96 is located at the rear side of the second tension roller 94; a fourth tension roller 97 which is rotatably arranged on the upper cloth frame 9 and located below the spreader 96; a fifth tension roller 98 which is rotatably arranged on the upper cloth frame 9 and located below the fourth tension roller 97; a sixth tension roller set 99 which is rotatably arranged on the upper cloth frame 9 and located above the fifth tension roller 98, the sixth tension roller set 99 comprises a third linkage frame 991 which is rotatably connected with the upper cloth frame 9, and a sixth tension roller one 992 and a sixth tension roller two 993 are rotatably arranged on both sides of the third linkage frame 991, and it should be noted that the third linkage frame 991 can be driven to rotate by a driving mechanism; a cloth feeding roller 90 which is rotatably arranged on the upper cloth frame 9 and located above the sixth tension roller set 99; an upper cloth driving mechanism 962 which is arranged on the upper cloth frame 9 and has an output end connected with the spreader 96. In this embodiment, the printed medium 8 sequentially passes through the upper cloth roller one 912, the upper cloth roller two 913, the first tension roller two 923, the first tension roller two 923, the second tension roller 94, the third tension roller 95, the spreader 96, the fourth tension roller 97, the fifth tension roller 98, the sixth tension roller one 992, the sixth tension roller two 993 and the cloth feeding roller 90, and finally is sent out from the cloth feeding roller 90 to the printing trolley 3 for printing.Wherein, when the printing medium 8 passes through the upper cloth roller one 912 and the upper cloth roller two 913, the driving mechanism can drive the first linkage frame 911 to rotate to comb and tension the cloth, when the printing medium 8 passes through the first tension roller one 922 and the first tension roller two 923, the driving mechanism can drive the second linkage frame 921 to rotate to change the position of the first tension roller one 922 and the first tension roller two 923 to comb and tension the cloth, before the cloth is sent out, when the printing medium 8 passes through the sixth tension roller one 992 and the sixth tension roller two 993, the driving mechanism can drive the third linkage frame 991 to rotate to comb and tension the printing medium 8 before the cloth is sent out; further, the expansion roller 96 enables the printing medium 8 to expand to both sides when printing, and the expansion roller is provided with a separation groove, through which separate printing can be performed, two, three or even four times, in this embodiment, two times, the printing medium can expand separately, each piece of the medium is isolated by the separation groove, and different widths of multiple groups of conveying and printing can be completed at one time, different widths of media are adapted, waste is reduced, and printing efficiency is improved, and the printing of each piece is not affected.

[0065] In some embodiments, as shown in Figures 16 to 18 The upper cloth frame 9 is also provided with a deviation correction assembly 93, which is located between the first tension roller group 92 and the second tension roller 94, and includes a deviation correction cross beam 932 and two groups of deviation correction driving mechanisms 931. The top of the two sides of the deviation correction cross beam 932 is provided with two groups of deviation correction belts 933, and the output ends of the two groups of deviation correction driving mechanisms 931 are connected to the deviation correction belts 933 one by one. The two sides of the deviation correction cross beam 932 are also provided with deviation correction electric eyes 935, and a deviation correction auxiliary roller 934 is rotatably arranged between the two groups of deviation correction belts 933. In order to prevent the printing medium 8 from deviating during conveying, the printing medium 8 is kept between the two groups of deviation correction electric eyes 935, and once the printing medium 8 deviates, the corresponding deviation correction driving mechanism 931 is started to drive the deviation correction belt 933 to move, so that the deviation correction belt 933 drives the printing medium 8 to move, thereby achieving the effect of deviation correction. When the deviation correction is correct, the deviation correction electric eyes 935 are not in the sensing state, and the deviation correction driving mechanism 931 stops working.

[0066] In some embodiments, as shown in Figure 16 and 17As shown, the support frame 12 is provided with an adjusting mechanism 4, and four adjusting mechanisms 4 are respectively arranged at the top of each support frame 12. The first cross beam 21 and the second cross beam 22 are arranged on the adjusting mechanism 4, and the first cross beam 21 and the second cross beam 22 are kept parallel and aligned by adjusting the adjusting mechanism 4. The first cross beam 21 and the second cross beam 22 are respectively arranged above the adjusting mechanism 4, and the position of the cross beam can be adjusted by the adjusting mechanism 4 during installation, so as to ensure that the first cross beam 21 and the second cross beam 22 are parallel and aligned, effectively ensure the printing precision, and the entire rack 1 is convenient to install and disassemble. The adjusting mechanism 4 includes an adjusting fixed plate 41 fixedly connected to the top of the support frame 12, a first adjusting plate 42 connected to the top of the adjusting fixed plate 41 and configured to be adjustable in a first direction X, and a second adjusting plate 43 connected to the top of the first adjusting plate 42 and configured to be adjustable in a second direction Y. The first cross beam 21 and the second cross beam 22 are connected to the top of the respective adjusting mechanism 4, and the first direction X and the second direction Y are perpendicular. The first adjusting plate 42 includes a first lower adjusting plate 421 and a first upper adjusting plate 422, the first upper adjusting plate 422 is arranged above the first lower adjusting plate 421, a first adjusting step 423 is formed between the two side edges of the first lower adjusting plate 421 and the first upper adjusting plate 422, a plurality of first U-shaped connecting holes 4231 are formed on the first adjusting step 423 and extend in the first direction X, a plurality of first connecting holes 4221 are formed on the first upper adjusting plate 422, and a plurality of fixed connecting holes 411 corresponding to the first U-shaped connecting holes 4231 are formed on the adjusting fixed plate 41. The fixed connecting holes 411 and the first U-shaped connecting holes 4231 can pass through fastening bolts to connect the fixed plate and the first adjusting plate 42, and the position of the first adjusting plate 42 in the first direction X can be adjusted through the first U-shaped connecting holes 4231.The second adjusting plate 43 comprises a second lower adjusting plate 431 and a second upper adjusting plate 432, the second upper adjusting plate 432 is arranged above the second lower adjusting plate 431, second adjusting steps 433 are formed between the two side edges of the second lower adjusting plate 431 and the second upper adjusting plate 432, a plurality of second U-shaped connecting holes 4331 are arranged on the second adjusting steps 433, the second U-shaped connecting holes 4331 extend along the second direction Y, the second U-shaped connecting holes 4331 correspond to the first connecting holes 4221, the first connecting holes 4221 and the second U-shaped connecting holes 4331 can pass through fastening bolts, so as to connect the first adjusting plate 42 and the second adjusting plate 43, and the position of the second adjusting plate 43 in the second direction Y can be adjusted through the second U-shaped holes, a second connecting hole 4321 is arranged on the second upper adjusting plate 432, the first cross beam 21 and the second cross beam 22 are connected with the second adjusting plate 43 through the second connecting hole 4321. In the embodiment, the first adjusting steps 423 and the second adjusting steps 433 provide adjusting space positions, and the first U-shaped connecting holes 4231 and the second U-shaped connecting holes 4331 are combined to adjust the first cross beam 21 and the second cross beam 22 along the first direction X and the second direction Y respectively, so as to ensure that the first cross beam 21 and the second cross beam 22 are parallel and aligned, thereby effectively ensuring the printing precision.

[0067] The traditional digital printing machine needs separate sizing, the process is complex, the efficiency is low, and the medium penetration is poor during printing. In some embodiments, such as Figure 7 、 18As shown in FIGS. 19, the main frame 11 is also connected with the online coating device 13, and the main frame 11 is provided with a guide belt (not shown). The guide belt is moved along the first direction X. The main frame 11 is a spliced detachable main frame 11, and the online coating device 13 can be spliced on the main frame 11. The online coating device 13 comprises two coating chassis 131, two coating fixing frames 132, a coating mesh roller 133 and a coating pipe 134. The two coating chassis 131 are connected by a coating fixing rod 135. The two sides of the two coating chassis are connected with the main frame 11. The coating fixing frame 132 is one-to-one slidingly arranged on the coating chassis 131. The coating chassis 131 is provided with a coating sliding rail 1367. The coating sliding rail 1367 is slidingly provided with a coating sliding block 1368. The coating fixing frame 132 is arranged on the coating sliding block 1368. The coating mesh roller 133 is rotatably arranged between the two coating fixing frames 132. The coating mesh roller 133 is a hollow circular roller structure. A plurality of coating holes are formed in the coating mesh roller 133. The coating holes can be designed with different diameters according to the thickness of the coating. The coating pipe 134 extends into the coating mesh roller 133. A group of coating fixing frames 132 is provided with an avoiding opening. One end of the coating pipe 134 is connected with a coating supply device (not shown). The coating pipe 134 extends into the coating mesh roller 133 and has a length close to the coating. A plurality of coating injection holes (not shown) are formed in the coating pipe 134. The coating is injected into the inner wall of the bottom of the coating mesh pipe through the coating injection holes, and then the coating is coated on the medium conveyed on the guide belt through the coating holes. The online coating device 13 further comprises a first coating driving module and a second coating driving module 137. The coating mesh roller 133 is perpendicular to the guide belt in position. The first coating driving module 136 is used for driving the coating fixing frame 132 to move back and forth along the first direction, so that the coating mesh roller 133 moves back and forth along the first direction parallel to the guide belt. The second coating driving module 137 is used for driving the coating mesh roller 133 to rotate. Specifically, the first coating driving module 136 comprises a first coating driving motor 1361 (not shown). The output end of the first coating driving motor 1361 is provided with a first coating gear 1362. A coating driving shaft 1364 and a coating driven shaft 1365 are rotatably arranged on the two coating chassis 131. One side of the coating driving shaft 1364 is rotatably provided with a second coating gear 1363. The first coating gear 1362 and the second coating gear 1363 are in gear engagement. The coating driving shaft 1364 and the coating driven shaft 1365 are sleeved with a coating belt 1366. The coating belt 1366 is connected with the coating sliding block 1368.The second coating drive module 137 comprises a second coating drive motor, which is arranged on the coating fixed frame 132, and the output end of the second coating drive motor is connected to one side of the coating mesh roller 133 to drive the coating mesh roller 133 to rotate.

[0068] In the embodiment of the present application, the guide belt driven by the main frame 11 of the digital printing machine passes below the coating mesh roller 133, the coating mesh roller 133 is supplied with coating by the coating roller, the first coating drive motor 1361 drives the first coating gear 1632 to rotate, the first coating gear 1362 drives the coating driving shaft 1364 to rotate through the second coating gear 1363, the coating driving shaft 1364 drives the coating slide to move through the coating belt 1366, thereby driving the coating fixed frame 132 to move along the first direction, and driving the coating mesh roller 133 to move forward and backward along the first direction to coat, at the same time, the second coating drive motor drives the coating mesh roller 133 to rotate, and the coating is performed synchronously. In the embodiment of the present application, the medium is coated while being conveyed on the guide belt, the step of coating alone is saved, the process is simplified, and the coating method of the embodiment can increase the penetration effect of the digital printing machine, the effect is better, and the thickness of the coating can be kept consistent.

[0069] Note that the above are only the preferred embodiments of the present application and the applied technical principles. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, readjustments and substitutions without departing from the protection scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A double beam digital printing machine, characterized in that, The utility model relates to a printing device, including: Rack, it includes main frame and two groups of support frame, two groups support frame respectively set up in two sides of main frame, main frame and support frame are not connected, be provided with guide tape conveying mechanism and guide tape cleaning mechanism on main frame, be provided with first crossbeam and second crossbeam on support frame, first crossbeam and second crossbeam parallel alignment are set up, the top and side of first crossbeam and second crossbeam are all provided with first sliding rail, the top of first crossbeam and second crossbeam still respectively is provided with linear motor, first crossbeam and second crossbeam are provided with a plurality of stator plate along its length direction; Printing trolley, slide and set up between first crossbeam and second crossbeam, the output of two groups linear motor is connected printing trolley respectively one to one, both sides of printing trolley are provided with rotor plate, be provided with the first sliding block corresponding with first sliding rail on rotor plate, be provided with at least two groups of rotor on rotor plate, be provided with more than 100 nozzles on printing trolley; Cleaning and moisturizing mechanism, set up in one of support frame, for cleaning and moisturizing to nozzle; Cloth mechanism is used for conveying printing medium to guide tape conveying mechanism; The printing trolley includes a trolley chassis, a trolley top frame, and two trolley side frames. The second sliding block is slidably connected to the trolley side frame. A plurality of first nozzle mounting slots are formed in the trolley chassis. First trolley mounting frames are arranged on the front and rear sides of the trolley side frame near the top. A maintenance avoidance opening is formed below the first trolley mounting frame. The trolley top frame includes a top horizontal frame and a top vertical frame. Adjusting mechanisms are arranged on the support frames. The first and second crossbeams are connected to the adjusting mechanisms. The first adjusting plate includes a first lower adjusting plate and a first upper adjusting plate. The first upper adjusting plate is arranged above the first lower adjusting plate. First U-shaped connecting holes are formed in the first adjusting step. The first upper adjusting plate has a plurality of first connecting holes. The adjusting fixed plate has a plurality of fixed connecting holes corresponding to the first U-shaped connecting holes. The second adjusting plate comprises a second lower adjusting plate and a second upper adjusting plate, the second upper adjusting plate is arranged above the second lower adjusting plate, a second adjusting step is formed between the two side edges of the second lower adjusting plate and the second upper adjusting plate, a plurality of second U-shaped connecting holes are arranged on the second adjusting step, the second U-shaped connecting holes extend along a second direction, the second U-shaped connecting holes correspond to the first connecting holes, a second connecting hole is arranged on the second upper adjusting plate, and the first cross beam and the second cross beam are connected with the second adjusting plate through the second connecting hole.

2. A double beam digital printing machine according to claim 1, characterized in that, The first hinge frame is arranged at the front and rear positions close to the bottom of the trolley side frame, two groups of second hinge frames are respectively arranged at the front and rear positions of the trolley bottom frame, the second hinge frames are arranged at the front and rear positions close to the middle of the trolley bottom frame, one end of the screw is hinged to the first hinge frame, and the other end of the screw is hinged to the second hinge frame.

3. A double beam digital printing machine according to claim 2, characterized in that, The mover plate comprises a mover horizontal plate and a mover vertical plate, a reinforcing block is arranged between the mover horizontal plate and the mover vertical plate, and the first sliding block is arranged on the mover horizontal plate and the mover vertical plate. A plurality of lightening grooves are arranged on one side of the mover vertical plate. A second sliding rail is arranged on the other side of the mover vertical plate, a second sliding block is slidingly arranged on the second sliding rail, and the second sliding block is connected with the printing trolley. The length of the stator plate is L2, the distance between the heads of two adjacent movers is L1, and L1 is an integer multiple of L2.

4. The double beam digital printing machine according to claim 1, characterized in that, The main frame is also connected with an online slurry coating device. The online slurry coating device comprises two slurry coating chassis, two slurry coating fixing frames, a slurry coating net roller and a slurry coating pipe, the two slurry coating chassis are connected through a slurry coating fixing rod, the slurry coating fixing frames are slidingly arranged on the slurry coating chassis in a one-to-one mode, the slurry coating net roller is rotatably arranged between the two slurry coating fixing frames, the slurry coating net roller is a hollow circular roller structure, a plurality of slurry coating holes are arranged on the slurry coating net roller, and the slurry coating pipe extends into the slurry coating net roller. The online slurry coating device further comprises a first slurry coating driving module and a second slurry coating driving module, the guide belt of the double-beam digital printing machine moves along a first direction, the slurry coating net roller is perpendicular to the guide belt in position, the first slurry coating driving module is used for driving the slurry coating fixing frame to reciprocate along the first direction, so that the slurry coating net roller reciprocates along the first direction and parallel to the guide belt at the same time, and the second slurry coating driving module is used for driving the slurry coating net roller to rotate.

5. The double beam digital printing machine according to claim 1, characterized in that, The cleaning and moisturizing mechanism comprises a cleaning device and a moisturizing device, the cleaning device comprises a cleaning cavity, the moisturizing device comprises a moisturizing cavity, the bottom of the cleaning device is provided with a first flow guide pipe, one end of the first flow guide pipe is communicated with the cleaning cavity, the bottom of the moisturizing cavity is communicated with a second flow guide pipe, the second flow guide pipe is communicated with the moisturizing cavity, the top end surface of one side of the second flow guide pipe communicated with the moisturizing cavity is higher than the bottom surface of the moisturizing cavity, the first flow guide pipe and the second flow guide pipe are communicated, and a water electromagnetic valve is further arranged between the first flow guide pipe and the second flow guide pipe.

6. A double beam digital printing machine according to claim 5, characterized in that, The cleaning device comprises a blade part, the blade part comprises a blade mounting plate, at least two groups of blade mounting seats are arranged on the blade mounting plate, the blade mounting seat comprises a blade mounting base and a blade mounting inclined seat, the front side and the rear side of the blade mounting inclined seat are respectively provided with a front blade and a rear blade, the front side of the blade mounting inclined seat comprises a first supporting surface and a first inclined surface, the bottom surface of the front blade is close to the first supporting surface, the side surface of the front blade is close to the first inclined surface, the front blade is fixed on the front side of the blade mounting inclined seat through a first blade fixing plate, the rear side of the blade mounting inclined seat comprises a second supporting surface and a second inclined surface, the bottom surface of the rear blade is close to the second supporting surface, the side surface of the rear blade is close to the second inclined surface, the rear blade is fixed on the rear side of the blade mounting inclined seat through a second blade fixing plate, and the height of the top of the front blade is higher than the height of the top of the rear blade.

7. The double beam digital printing machine according to claim 1, characterized in that, The cloth feeding mechanism comprises a cloth feeding frame, an expander roller is rotationally arranged on the cloth feeding frame, and a plurality of separation grooves are arranged in the middle of the expander roller.

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