An inkjet system for an inkjet printer

Abstract

The present invention relates to an inkjet system for an inkjet printer, which includes a lifting unit, an ink distribution unit, and an inkjet unit. The lifting unit is connected to the ink distribution unit. The ink distribution unit has a plurality of ink cartridges and an ink controller. The ink cartridges are connected to the inkjet unit through pipelines. The inkjet unit includes a plurality of inkjet heads corresponding to the ink cartridges one by one. The inkjet head includes an inkjet housing, a piezoelectric driving member, a piezoelectric crystal, and a nozzle. The nozzle is opened on the inkjet housing; the piezoelectric driving member is used to drive the piezoelectric crystal, and the piezoelectric crystal can drive the nozzle to eject ink. Through the lifting unit, the ink distribution system can be lifted better, and then the lifting of the printing inkjet can be achieved to make room for the cleaning system. Moreover, the ink distribution unit distributes four kinds of inks to a plurality of ink cartridges as needed, and the ink controller sprays the inks in different ink cartridges according to the demand. The cost of the piezoelectric crystal is low, and the printing speed is 100-180 m / min, which improves the printing speed of the printer.

Description

Technical Field

[0001] The present invention relates to the technical field of printers, and in particular to an inkjet system for an inkjet printer. Background Art

[0002] During the printing process of most flatbed and roll printers, nozzles are used to print on the rolls. However, the existing inkjet printing speed is determined by the firing frequency of the nozzles and the structure of the print head. The fastest UV flatbed printer on the market currently uses Kyocera nozzles, but they are expensive. The expensive nozzles will increase the cost of the printer. If existing low-cost nozzles are used, the printing speed is relatively low. Summary of the Invention

[0003] (1) Technical Problems to be Solved

[0004] In view of the above-mentioned disadvantages and deficiencies of the prior art, the present invention provides an inkjet system for an inkjet printer, which solves the technical problem that the fastest UV flatbed printer on the market currently uses Kyocera nozzles, but they are expensive. The expensive nozzles will increase the cost of the printer. If existing low-cost nozzles are used, the printing speed is relatively low.

[0005] (2) Technical Solutions

[0006] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0007] An inkjet system for an inkjet printer, comprising a lifting unit, an ink distribution unit, and an inkjet unit;

[0008] The lifting unit is connected to the ink distribution unit and is capable of driving the ink distribution unit to perform lifting movement;

[0009] The ink distribution unit has a plurality of ink cartridges and an ink controller capable of controlling the inkjet of the ink cartridges. The ink cartridges are connected to the inkjet unit through pipelines;

[0010] The inkjet unit includes a plurality of inkjet heads corresponding to the ink cartridges one by one. The inkjet head includes an inkjet housing, a piezoelectric driving member, a piezoelectric crystal, and a nozzle;

[0011] The piezoelectric driving member and the piezoelectric crystal are arranged inside the inkjet housing; the nozzle is opened on the inkjet housing; the piezoelectric driving member is used to drive the piezoelectric crystal, and the piezoelectric crystal is capable of driving the nozzle to perform inkjet.

[0012] Optionally, the piezoelectric driving member includes a piezoelectric driving motor, and the piezoelectric driving motor is capable of driving the nozzle to perform inkjet;

[0013] The nozzle is manufactured by a microelectromechanical system.

[0014] Optionally, the lifting unit includes an "I"-shaped fixed crossbeam bracket, the bottom of the fixed crossbeam bracket is detachably connected with a lifting frame, the lifting frame can rise or fall relative to the fixed crossbeam bracket, and the ink distribution unit is fixedly connected to the lifting frame.

[0015] Optionally, the ink distribution unit further includes a mounting plate fixedly connected to the lifting frame, a plurality of partition plates are arranged at equal intervals on the mounting plate, an ink cartridge accommodating space is formed between adjacent partition plates, and the ink cartridges are respectively arranged in the ink cartridge accommodating spaces.

[0016] Optionally, a first through hole is formed in the mounting plate, and a second through hole is formed in the partition plate.

[0017] Optionally, the nozzle is circular.

[0018] Optionally, the inkjet housing is made of a hard material such as acrylic, plastic, glass, metal or ceramic tile.

[0019] Optionally, it further includes an ink storage unit, and the ink storage unit is communicated with the ink distribution unit.

[0020] Optionally, the ink storage unit includes a plurality of ink storage cartridges, and different inks are respectively filled in the ink storage cartridges.

[0021] An inkjet printer includes an inkjet system.

[0022] (III) Beneficial effects

[0023] The beneficial effects of the present invention are as follows: An inkjet system for an inkjet printer of the present invention can better lift the ink distribution system through the lifting unit, and then lift the printing inkjet, so as to make room for the cleaning system. Moreover, the ink distribution unit distributes four kinds of inks to a plurality of ink cartridges as required, and the ink controller sprays the inks in different ink cartridges according to requirements. The piezoelectric crystal is thinner, so that the ink droplet ejection force or pumping pressure is greater. From the drive of the piezoelectric drive to the cavity of the ink housing and the nozzle, all are manufactured by using high-precision MEMS technology. The microelectromechanical system manufacturing process ensures the consistency of the super micro piezoelectric technology printing chip and the industry-leading precision processing technology. The printing chip combines unique image processing technology and high-precision assembly technology. Compared with the prior art, its cost is low, and the printing speed is 100 - 180 m / min, which improves the printing speed of the printer. Description of the drawings

[0024] Figure 1 It is a front view schematic diagram of the inkjet printer of the present invention;

[0025] Figure 2 is Figure 1 the structural schematic diagram of the deviation rectifying unit;

[0026] Figure 3 is the front view schematic diagram of the inkjet system for an inkjet printer according to the present invention;

[0027] Figure 4 is Figure 3 the structural schematic diagram of the ink distribution unit;

[0028] Figure 5 is the exploded structural schematic diagram of the inkjet head.

[0029]

Explanation of the reference numerals

[0030] 1: Frame; 2: Inkjet printing main body; 3: Unwinding mechanism; 4: Rewinding mechanism; 5: Unwinding deviation rectifying unit; 51: First tension sensor; 52: First guide shaft; 6: Intermediate deviation rectifying unit; 61: Third guide shaft; 7: Rewinding deviation rectifying unit; 71: Second tension sensor; 72: Second guide shaft; 8: Deviation rectifying structure frame; 9: Dust removal mechanism; 10: Lifting unit; 20: Ink distribution unit; 21: Ink cartridge; 30: Inkjet unit; 31: Inkjet head; 311: Inkjet housing; 312: Piezoelectric driving member; 313: Nozzle; 40: Mounting plate; 41: First through hole; 50: Partition; 51: Second through hole. Detailed implementation manners

[0031] For better explaining the present invention and facilitating understanding, the present invention will be described in detail below with reference to the accompanying drawings through specific implementation manners. Among them, the orientation nouns such as "upper", "lower", "left", "right", "front" and "rear" mentioned herein are based on the Figure 1 orientation of

[0032] Refer to Figures 1-5 as shown, an inkjet printer proposed in an embodiment of the present invention includes a frame 1, an inkjet printing main body 2, an unwinding mechanism 3, a rewinding mechanism 4 and a deviation rectifying mechanism.

[0033] In this embodiment, the maximum printing resolution of the inkjet printer is: 1440x720 dpi (with intelligent ink drop transformation technology); the ink type is: water-based pigment ink (environmentally friendly); the roll paper width is in the range of 80 mm to 330.2 mm; the image size is 315.2 mm × 914.4 mm; the highest printing speed is: 8.2 m / min 720x360 (paper).

[0034] Specifically, the roll material is a rigid printing material with a certain mass, and during the placement process, the integrity of the roll material should be ensured to avoid damage to the material. The structure of the printer determines that the roll material needs to be placed horizontally, and its weight makes manual operation inconvenient.

[0035] The inkjet printing main body 2 is arranged above the frame 1, and the inkjet printing main body 2 has an inlet end and an outlet end; the inkjet printing main body 2 can perform inkjet on the roll material.

[0036] The unwinding mechanism 3 and the winding mechanism 4 are symmetrically arranged at the inlet end and the outlet end. One end of the roll material is wound around the unwinding mechanism 3, and the other end of the roll material passes through the inkjet printing main body 2 and is wound around the winding mechanism 4. The unwinding mechanism 3 and the winding mechanism 4 cooperate with each other. The winding mechanism 4 can pull out the roll material with a certain tension and wind up the roll material after inkjet.

[0037] Specifically, the power stability of the unwinding mechanism 3 = speed stability (stable movement at a certain rate); the speed is adjustable (adjust the printing speed according to actual printing requirements); it meets the power requirements of the winding device and the unwinding device; it meets the adjustable control of the tension of each part (ensure the stability and change of the tension of the printing paper); variable-speed motor.

[0038] Furthermore, the unwinding mechanism 3 can receive the start, stop, and braking signals of the electrical drive device in the inkjet printing main body 2 to control its start, stop, and braking; receive the position sensor signal and the forward and reverse signal to control the on and off of each power tube of the inverter bridge to generate continuous torque; receive the speed command and the speed feedback signal to control and adjust the rotation speed, solve the problem of efficient drive of the unwinding unit, improve its intelligent drive level, and ensure the smoothness of its running speed and the safety during the running process. This is one of the core components of our structure.

[0039] The deviation correction mechanism includes an unwinding deviation correction unit 5, an intermediate deviation correction unit 6, and a winding deviation correction unit 7 arranged in sequence.

[0040] The roll material passes through the unwinding deviation correction unit 5, the intermediate deviation correction unit 6, the inkjet printing main body 2, and the winding deviation correction unit 7 and is wound around the winding mechanism 4; the unwinding deviation correction unit 5, the intermediate deviation correction unit 6, and the winding deviation correction unit 7 can all perform deviation correction and guiding on the roll material.

[0041] Furthermore, the unwinding deviation correction unit 5 includes a first tension sensor 51 and a plurality of first guide shafts 52 at the same horizontal height, and the roll material is attached to the plurality of first guide shafts 52 in a wavy shape.

[0042] The intermediate deviation correction unit 6 includes a plurality of third guide shafts 61 distributed up and down.

[0043] The coiling deviation rectifying unit 7 includes a second tension sensor 71 and a plurality of second guide shafts 72 at the same horizontal height, and the coil is attached to the plurality of second guide shafts 72 in a wavy shape.

[0044] Further, the deviation rectifying mechanism further includes a deviation rectifying structure frame 8.

[0045] The deviation rectifying structure frame 8 is arranged between the intermediate deviation rectifying unit 6 and the coiling deviation rectifying unit 7; the deviation rectifying structure frame 8 has a through groove 81, and a plurality of guide wheels 82 are arranged below the inside of the through groove 81.

[0046] Further, a dust removing mechanism 9 is also included and is arranged on one side of the inkjet printing main body 2 and close to the inlet end. The dust removing mechanism 9 can remove dust from the coil for inkjetting.

[0047] An inkjet system for an inkjet printer includes a lifting unit 10, an ink distribution unit 20, and an inkjet unit 30.

[0048] The lifting unit 10 is connected to the ink distribution unit 20 and can drive the ink distribution unit 20 to perform lifting motion.

[0049] The ink distribution unit 20 has a plurality of ink cartridges 21 and an ink controller capable of controlling the inkjet of the ink cartridges 21, and the ink cartridges 21 are connected to the inkjet unit 30 through pipelines.

[0050] The inkjet unit 30 includes a plurality of inkjet heads 31 corresponding one-to-one to the ink cartridges 21. The inkjet head 31 includes an inkjet housing 311, a piezoelectric driving member 312, a piezoelectric crystal (not shown in the figure), and a nozzle 313.

[0051] The piezoelectric driving member 312 and the piezoelectric crystal are arranged inside the inkjet housing 311. The nozzle 313 is opened on the inkjet housing 311; the piezoelectric driving member 312 is used to drive the piezoelectric crystal, and the piezoelectric crystal can drive the nozzle 313 to perform inkjetting.

[0052] Further, the piezoelectric driving member 312 includes a piezoelectric driving motor, and the piezoelectric driving motor can drive the nozzle 313 to perform inkjetting.

[0053] The nozzle 313 is manufactured by a microelectromechanical system. From the drive of the piezoelectric driving member to the cavity of the ink housing, and the nozzle 313 are all manufactured by high-precision MEMS technology. The microelectromechanical system manufacturing process ensures that the super micro piezoelectric technology printing chip is consistent with the industry-leading precision processing technology. The printing chip combines unique image processing technology and high-precision assembly technology.

[0054] Furthermore, the lifting unit 10 includes an "I"-shaped fixed crossbeam bracket 11. The bottom of the fixed crossbeam bracket 11 is detachably connected to a lifting frame 12. The lifting frame 12 can move up or down relative to the fixed crossbeam bracket 11. The ink distribution unit 20 is fixedly connected to the lifting frame 12. It has good structural stability and is convenient for installation and later maintenance.

[0055] Furthermore, the ink distribution unit 20 further includes a mounting plate 40 fixedly connected to the lifting frame 12. A plurality of partition plates 50 are equidistantly arranged on the mounting plate 40. An ink cartridge 21 accommodation space is formed between adjacent partition plates 50. The ink cartridges 21 are respectively arranged in the ink cartridge 21 accommodation spaces.

[0056] In this embodiment, a first through hole 41 is opened on the mounting plate 40, and a second through hole is opened on the partition plate 50. While ensuring the installation of the ink cartridge 21, the weight is reduced.

[0057] Furthermore, the nozzle 313 is circular. The precise circular nozzle 313 ensures precise ink droplet ejection.

[0058] Furthermore, the inkjet housing 311 is made of a hard material such as acrylic, plastic, glass, metal, or ceramic tile.

[0059] Specifically, the basic material of the inkjet housing 311 of this device is selected from hard materials such as acrylic, plastic, glass, metal, or ceramic tile. The positive and negative electrodes on the upper surface of the piezoelectric material are arranged in a cross pattern. The inkjet chamber and the cover plate are in a bonding process. The inkjet head uses the same processes as semiconductors, such as etching, evaporation plating, and sputtering plating.

[0060] Furthermore, it further includes an ink storage unit, and the ink storage unit is communicated with the ink distribution unit 20.

[0061] Furthermore, the ink storage unit includes a plurality of ink storage cartridges, and different inks are respectively filled in the ink storage cartridges.

[0062] Specifically, CMYK four-color ink storage tanks, two cleaning liquid storage barrels (one clean and one dirty), and two control water pumps.

[0063] Furthermore, it further includes seven cleaning pools 60, guide rails on both sides, and motor reserved positions (the cleaning liquid is in the cleaning pool 60).

[0064] The present invention provides an inkjet system for an inkjet printer. Through the lifting unit 10, the ink distribution system can be lifted better, and then the printing inkjet can be lifted to make room for the cleaning system. Moreover, the ink distribution unit 20 distributes four kinds of inks to a plurality of ink cartridges 21 as needed, and sprays the inks in different ink cartridges 21 according to the demand through an ink controller. The piezoelectric crystal is thinner so that the ink droplet ejection force or pumping pressure is greater. From the drive of the piezoelectric driver 312 to the cavity of the ink housing and the nozzle 313, all are manufactured by using high-precision MEMS technology. The microelectromechanical system manufacturing process ensures the consistency of the super micro piezoelectric technology printing chip and the industry-leading precision processing technology. The printing chip combines unique image processing technology and high-precision assembly technology. Compared with the prior art, it has a low cost, and the printing speed is 100-180 m / min, improving the printing speed of the printer.

[0065] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0066] In the present invention, unless otherwise clearly defined and limited, the terms such as "installation", "connection", "connection", "fixation" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium; it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0067] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0068] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0069] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An inkjet system for an inkjet printer, characterized in that, It includes a lifting unit (10), an ink distribution unit (20) and an inkjet unit (30); The lifting unit (10) is connected to the ink distribution unit (20) and can drive the ink distribution unit (20) to perform lifting motion; The ink distribution unit (20) has a plurality of ink cartridges (21) and an ink controller capable of controlling the inkjet of the ink cartridges (21), and the ink cartridges (21) are connected to the inkjet unit (30) through pipelines; The inkjet unit (30) includes a plurality of inkjet heads (31) corresponding to the ink cartridges (21) one by one, and the inkjet heads (31) include an inkjet housing (311), a piezoelectric driving member (312), a piezoelectric crystal and a nozzle (313); The piezoelectric driving member (312) and the piezoelectric crystal are arranged inside the inkjet housing (311); the nozzle (313) is opened on the inkjet housing (311); the piezoelectric driving member (312) is used to drive the piezoelectric crystal, and the piezoelectric crystal can drive the nozzle (313) to perform inkjet; The piezoelectric driving member (312) includes a piezoelectric driving motor, and the piezoelectric driving motor can drive the nozzle (313) to perform inkjet; The nozzle (313) is manufactured by using a microelectromechanical system; It further includes an ink storage unit, and the ink storage unit is connected to the ink distribution unit (20); The ink storage unit includes a plurality of ink storage cartridges, and different inks are respectively filled in the ink storage cartridges; The lifting unit (10) includes an "I"-shaped fixed crossbeam bracket (11), the bottom of the fixed crossbeam bracket (11) is detachably connected with a lifting frame (12), the lifting frame (12) can rise or fall relative to the fixed crossbeam bracket (11), and the ink distribution unit (20) is fixedly connected to the lifting frame (12); The ink distribution unit (20) further includes a mounting plate (40) fixedly connected to the lifting frame (12), a plurality of partition plates (50) are arranged at equal intervals on the mounting plate (40), an ink cartridge (21) accommodating space is formed between adjacent partition plates (50), and the ink cartridges (21) are respectively arranged in the ink cartridge (21) accommodating space; A first through hole (41) is opened on the mounting plate (40), and a second through hole is opened on the partition plate (50); It further includes an inkjet printer, and the inkjet printer includes a frame (1), an inkjet printing main body (2), a unwind mechanism (3), a rewind mechanism (4) and a deviation correction mechanism; The unwind mechanism (3) can receive the start, stop and brake signals of the electric drive device in the inkjet printing main body (2) to control its start, stop and brake; receive the position sensor signal and the forward and reverse rotation signals to control the on and off of each power tube of the inverter bridge and generate continuous torque.

2. The inkjet system for an inkjet printer according to claim 1, characterized in that, The nozzle (313) is circular.

3. The inkjet system for an inkjet printer according to claim 1, wherein, The inkjet housing (311) is made of plastic, glass, metal or ceramic.

4. An inkjet printer, comprising the inkjet system according to any one of claims 1-3.

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