CN115008903B

CN115008903B - Integrated accurate adjusting device of many shower nozzles array

Info

Publication number: CN115008903B
Application number: CN202210539149.1A
Authority: CN
Inventors: 蔡光达; 陈建魁; 付宇; 雷春耀; 高俊伟
Original assignee: Wuhan Guochuangke Photoelectric Equipment Co ltd
Current assignee: Wuhan Guochuangke Photoelectric Equipment Co ltd
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2023-05-09
Anticipated expiration: 2042-05-18
Also published as: CN115008903A

Abstract

The invention belongs to the technical field related to ink-jet printing equipment, and discloses a multi-nozzle array integrated precise adjusting device. The first adjusting unit is used for adjusting the space posture of the spray head clamping assembly, so that the parallelism between the whole bottom surface of the integrated spray head and the printing substrate can be improved; the second adjusting unit and the third adjusting unit are adopted, so that the splicing consistency of the X direction and the Z direction of the spray hole of the integrated spray head can be respectively ensured; the pin shaft is adopted for positioning, so that the parallel and equal-height relation of the splicing dovetail clamp assembly in the Z direction can be ensured. In addition, the boss surface design and the adjustment of the thousand heads and the adjustment screw sleeve are adopted, so that the Y-direction splicing consistency of the integrated spray head can be further improved; and the stop block is adopted for positioning, so that the Z-direction splicing consistency of the integrated spray head can be ensured. The invention can improve the splicing consistency of the spray heads in XYZ multi-direction in a mode with compact structure and high flexibility, and realize the integration of the micron-sized multi-spray head array.

Description

Integrated accurate adjusting device of many shower nozzles array

Technical Field

The invention belongs to the technical field related to ink-jet printing equipment, and particularly relates to a multi-nozzle array integrated precise adjustment device.

Background

The ink jet printing technology has wide application prospects in a plurality of manufacturing fields such as information, energy, medical treatment, national defense and the like, and along with the rapid development of the technology, the ink jet printing technology also has more and more applications in emerging fields such as OLED, RFID, thin film solar cells, wearable flexible devices, PCB, intelligent skin and other flexible devices.

The core component of the ink-jet printing device is an ink-jet printing unit, and the ink-jet printing unit is driven by the driving shaft to realize full-size printing of the printing substrate through multiple reciprocating motions of the driving shaft. Conventional inkjet printing units are generally configured with one head or, although a plurality of heads are configured, high-precision stitching cannot be achieved in a direction perpendicular to the printing direction, and the printing efficiency of such inkjet printing units is necessarily low.

In order to solve the technical problem of multi-nozzle splicing, some solutions have been proposed in the prior art. However, most of these schemes focus on the printing error control process of the splice type nozzle, such as CN201310090759.9, CN201910433448.5, etc. In fact, when all the nozzles are used to finish the splicing installation and the seamless expansion to form a larger-sized nozzle, the accuracy of the distance between the bottom surface and the nozzle holes of the nozzle may reach more than a micron level, and how to ensure the splicing consistency from the hardware perspective, especially ensure the high consistency of the nozzle holes on the bottom surface of all the nozzles in a plurality of spatial positions such as the X direction, the Y direction, the Z direction perpendicular to the substrate plane and the like, is becoming one of the key technical problems to be solved in the field.

Disclosure of Invention

In view of the above drawbacks or needs of the prior art, an object of the present invention is to provide a multi-nozzle array integrated fine adjustment device, in which the fine adjustment operation of the micro-nozzle array integration can be smoothly implemented in a compact structure, high flexibility and easy operation and control manner by improving the structural composition of the whole device and the pertinence of a plurality of key modules, and the high consistency of the spray holes on the bottom surface of each nozzle in a plurality of spatial positions such as X-direction, Y-direction and Z-direction perpendicular to a substrate plane can be ensured, so that the multi-nozzle array integrated fine adjustment device is particularly suitable for the inkjet manufacturing application occasions of flexible devices such as OLED, RFID, thin film solar cells, wearable flexible devices, PCB, intelligent skin and the like.

In order to achieve the above object, according to the present invention, there is provided a multi-head array integrated fine adjustment device, characterized in that the device comprises a head clamping assembly (101), a fixed adjustment seat (102), a mounting element (105), a tightening element (106) and a mounting base plate (103), wherein:

the spray head clamping assembly (101) is used for integrating a plurality of spray heads in an expandable array and comprises a dovetail clamping assembly (1011), a mounting plate (1012), an adjusting screw sleeve (1013), an adjusting thousand-head (1014) and pins (1015), wherein the number of the dovetail clamping assembly (1011) is more than two, the dovetail clamping assembly is fixedly mounted on the mounting plate (1012) respectively in an array splicing mode, and then each spray head (104) is mounted and compressed; the mounting plate (1012) is provided with a boss surface, and the splicing consistency of a plurality of spray heads (104) in the Y-direction during integrated mounting is ensured through the combination of the mounting plate and the boss surface corresponding to the dovetail clamp assemblies (1011); the adjusting screw sleeve (1013) and the adjusting thousand heads (1014) are respectively connected and installed between the mounting plate (1012) and the dovetail bases (10111) of the dovetail clamp assemblies (1011) and used for further adjusting the splicing consistency of the spray heads in the Y-direction after being integrally installed; the pins (1015) are connected and installed between the mounting plate (1012) and each dovetail seat (10111) and are used for ensuring parallel and equal-height positioning in the Z-direction when the dovetail clamp assembly (1011) is installed on the mounting plate (1012);

The fixed adjusting seats (102) are symmetrically arranged on two sides of the mounting plate (1012) and are matched with the mounting elements (105) to fixedly arrange the spray head clamping assembly (101) on the mounting bottom plate (103); the fastening elements (106) are correspondingly arranged near the mounting elements (105) and deform the fixed adjusting seat (102) through tightness adjustment between the fastening elements and the mounting elements; the fixed adjusting seat (102), the mounting element (105) and the fastening element jointly form a first adjusting unit, so that the space posture of the spray head clamping assembly (101) is adjusted, and the flatness between the whole bottom surface and the printing substrate (30) after the integrated mounting of the spray heads (104) is improved.

As a further preferred aspect, for the dovetail clip assembly (1011) described above, it preferably comprises Yan Wei (10111), an adjusting shaft (10112), a bead (10113), a first spring (10114), a guiding shaft (101110), a second spring (101111), a compression block (101112) and a compression screw (101113), wherein:

the dovetail seat (10111) is provided with a dovetail groove (101114), and the dovetail groove (101114) is matched with a nozzle dovetail (1016) arranged on each nozzle and performs left and right compaction through the compaction block (101112); the guide shaft (101110) is used for guiding the compaction block (101112), a first shaft section at the left end of the guide shaft is in clearance fit with a guide hole correspondingly arranged on the dovetail seat (10111), a second shaft section at the left end of the guide shaft is in clearance fit with the second spring (101111), a compaction force is provided for the compaction block (101112) through the second spring (101111), and a right shaft section of the guide shaft is used for screwing in the compaction screw (101113); the guide shaft (101110), the compaction block (101112), the second spring (101111) and the compaction screw (101113) jointly form a spray head compaction unit (60), so that a plurality of spray heads (104) are uniformly compacted when being integrally installed;

The adjusting shaft (10112) is screwed into a threaded hole corresponding to the dovetail seat (10111) through a threaded shaft section; the first spring (10114) is sleeved on the adjusting shaft (10112), one end of the first spring is arranged in the spring seat (10115), and the other end of the first spring is arranged on the guide shaft section of the adjusting shaft (10112); the small beads (10113) are plugged into corresponding stepped through holes on the side face of the dovetail seat (10111), then are arranged near the taper shaft section of the adjusting shaft (10112) and are extruded by the taper shaft section to perform left-right movement; the adjusting shaft (10112), the first spring (10114) and the small beads (10113) form a second adjusting unit together, so that splicing consistency of a plurality of spray heads in the X-direction during integrated installation is guaranteed, and the adjusting shaft is used for further adjusting parallelism between the bottom surfaces of the spray heads and a printing substrate.

As a further preferred aspect, for the dovetail clip assembly (1011) described above, it preferably further comprises a handle (10116), a first pin (10117), a second pin (10113), and a cam lever (10119), wherein:

the handle (10116) is rotatably arranged at the upper end of the cam rod (10119) through the first pin shaft (10117), and is simultaneously arranged on the dovetail seat (10111) through the second pin shaft (10118); the lower end of the cam rod (10119) is provided with a first flange (101116), and the compaction block (101112) is correspondingly provided with a second flange (101117) which is kept separate from or in contact with the first flange (101116); in this way, the handle (10116), the first pin (10117), the second pin (10118), and the cam lever (10119) together constitute a pressing operation unit, thereby driving the head pressing unit such that the pressing block presses or releases the respective heads.

As a further preferred mode, the head of the pressing screw (101113) is provided with a circumference bottom surface and the outer edge of the pressing screw is provided with a tiny round angle, and the inner edge of the bottom surface of a counter bore matched with the pressing screw (101113) of the pressing block (101112) is provided with a tiny round angle; in addition, a first gap is reserved between the circumferential bottom surface of the head part of the compression screw (101113) and the counter bore bottom surface of the compression block (101112), a second gap is reserved between the through hole of the compression block (101112) and the threaded section of the compression screw (101113), a third gap is reserved between the upper side surface and the lower side surface of the compression block (101112) and the upper side surface and the lower side surface of the slotting corresponding to the dovetail seat (10111), and a fourth gap is reserved between the right end shaft section of the guide shaft (101110) and the corresponding hole of the compression block (101112); in this way, the design of the micro fillet, the micro chamfer, the first gap, the second gap, the third gap and the fourth gap together ensure that the compaction block (101112) is self-adaptively and low in adhesion to the nozzle dovetail (1016) of each nozzle under the elastic force of the second spring (101111).

As a further preferred aspect, for the mounting plate (1012), a first boss (101115) is preferably disposed thereon, and a second boss (1017) and a third boss (101121) are preferably disposed on the dovetail base (10111) of each of the dovetail clip assemblies (1011), respectively, so that the joining uniformity in the Y direction is ensured by the combination of these bosses when the plurality of heads are integrally mounted.

As a further preference, for the above-mentioned adjusting kilo-split head (1014), it preferably comprises a threaded shaft (10141), a first nut (10142) and a first set screw (10143), wherein one end of the threaded shaft (10141) is an external hexagonal shaft section, the other end is a semicircular head face, and is screwed into a threaded hole of the first nut and then compressed via the first set screw (10143); the first set screw (10143) is radially mounted on a large diameter section of the outer peripheral surface of the first nut.

As a further preferred aspect, for the above-mentioned adjusting screw sleeve (1013), it preferably comprises an inner hexagon screw (10131), a screw sleeve (10132), and a second nut (10133), wherein the thread section of the inner hexagon screw (10131) is installed with the screw sleeve (10132) in a clearance fit, and the second nut (10133) is screwed into the external thread of the screw sleeve (10132) by a screw fit.

As a further preferred feature, the plurality of nozzles (104) are preferably inserted into the dovetail grooves (101114) of the respective dovetail seats (10111) through the nozzle dovetails (1016), and the nozzles are provided with first stop blocks (1041), respectively, so that the consistency of the joint of the nozzle holes (1046) in the Z direction is ensured when the plurality of nozzles are integrally mounted.

As a further preference, for the plurality of sprayheads (104) described above, the first stop block is preferably replaceable with a second stop block (1042), the threads of the second stop block (1042) being adapted to be screwed into a second set screw (1043) and then tightened with a third nut; the second stop block (1042), the second set screw (1043) and the third nut jointly form a third adjusting unit (70), so that the splicing consistency of the spray holes (1046) of the spray heads in the Z-direction after the spray heads are integrally installed is further adjusted.

As a further preferred, the printing substrate (30) is preferably a flexible device such as OLED, RFID, thin film solar cell, wearable flexible device, PCB, smart skin, etc.

In general, the above technical solutions conceived by the present invention have the following beneficial effects compared with the prior art:

(1) The invention improves the specific structure and arrangement modes of the whole device, such as the first to third adjusting units, the adjusting screw sleeve, the adjusting thousand heads, the convex table surface module, the stop block positioning module, the pin shaft positioning module and the like, can smoothly realize the precise adjustment operation of the integration of the micron-sized spray head array in a mode of compact structure, high flexibility and convenient operation, and can ensure the high consistency of the spray holes on the bottom surface of each spray head in the X direction, the Y direction, the Z direction vertical to the substrate plane and other space positions;

(2) According to the invention, the specific structure, arrangement and working mode of the spray head clamping assembly are further improved, and accordingly, the array splicing of multiple spray heads can be flexibly and highly accurately realized through a plurality of dovetail clamping assemblies, so that the working efficiency is greatly improved; in addition, a plurality of boss surfaces are respectively designed on the surfaces, which are attached to each other, between the dovetail clamp assembly and the mounting plate, so that the processing precision and the mounting precision of the dovetail seat and the mounting plate are guaranteed, and the splicing consistency of all spray heads in the direction perpendicular to the second boss surface, namely the Y direction, is indirectly guaranteed;

(3) According to the invention, through further improving the design of the first adjusting unit, the adjustment of the space posture of the spray head clamping assembly can be correspondingly performed, so that the flatness between the whole bottom surface and the printing substrate after the integrated installation of a plurality of spray heads is improved; in addition, through the matching design of the pin shaft module, the parallel and equal-height positioning of the dovetail clamp assembly in the Z-direction can be ensured when the dovetail clamp assembly is mounted on the mounting plate;

(4) According to the invention, through further improving the design of the adjusting screw sleeve, when the mounting precision requirement of the spray head is higher, the heights of the end faces of the plurality of groups of nuts extending out of the convex table surface of the mounting plate can be reasonably controlled through adjusting the plurality of groups of adjusting screw sleeves, so that the bonding between the nuts and the corresponding convex table surface of the dovetail seat is more accurate, the mounting precision of the dovetail clamp assembly and the mounting plate is improved, and the mounting precision of the spray head is indirectly improved; correspondingly, the splicing consistency of all the spray heads in the direction perpendicular to the second boss surface, namely the Y direction is further ensured;

(5) According to the invention, through further improving the design of adjusting the thousand heads, when the requirement on the installation precision of the spray head is higher, the axial extension of the semicircular head face of the screw rod can be reasonably controlled by adjusting the thousand heads, one side surface of the spray head, which is attached to the dovetail seat, is jacked to a proper height, and the other side of the spray head is still supported by the boss face of the dovetail seat, so that the original surface attachment is converted into the attachment of a point surface or a line surface, and the installation precision of the spray head and the dovetail clamp assembly can be further improved;

(6) According to the invention, through further improving the design of the second adjusting unit formed by the adjusting shaft, the first spring, the small beads and the like, not only can the left-right displacement of the spray heads be more uniformly adjusted and the space between the spray heads during splicing be better ensured, but also the parallelism of the bottom surface of the spray head relative to the printing substrate can be adjusted; in addition, through the matching design of the threaded shaft section and the conical shaft section of the adjusting shaft, the axial adjusting displacement of the adjusting shaft can be converted into the left-right displacement of the steel balls, the adjusting resolution of the adjusting shaft is greatly improved, and the spacing precision during multi-nozzle splicing is further improved;

(7) According to the invention, through further improving the design of the spray head compressing unit formed by the guide shaft, the compressing block, the second spring, the compressing screw and the like, the compressing block can be self-adaptively attached to the spray head under the elasticity of the second spring through the design of reasonable features of parts, particularly the design of reasonable gaps among the parts; meanwhile, the pressing units are provided with two groups which are arranged up and down, so that the nozzle dovetails can be pressed more uniformly;

(8) The invention can further adjust the splicing consistency of the spray holes in the Z direction after the integrated installation of a plurality of spray heads by further improving the design of the third adjusting unit consisting of the second stop block, the second set screw, the third nut and the like.

Drawings

FIG. 1 is a schematic diagram illustrating the overall structure of a multi-head array integrated fine adjustment device according to the present invention;

FIG. 2 is a schematic three-dimensional structure of an inkjet printing unit;

FIG. 3 is a perspective view of a preferred embodiment of the present invention, more particularly showing a spray head clamping assembly;

FIG. 4 is an exploded view of the spray head clamping assembly of FIG. 3;

FIG. 5 is a perspective view of a dovetail clip assembly, more particularly in accordance with a preferred embodiment of the present invention;

FIG. 6a is an exploded block diagram of the dovetail clip assembly shown in FIG. 5;

FIG. 6b is a cross-sectional view of one construction of the dovetail clip assembly shown in FIG. 5;

FIG. 6c is another structural cross-sectional view of the dovetail clip assembly shown in FIG. 5;

FIG. 7 is an exploded view showing the construction of an adjusting screw sleeve in more detail, according to a preferred embodiment of the present invention;

fig. 8 is an exploded view showing the structure of the adjusting kilowatt more specifically according to a preferred embodiment of the present invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

It should be noted that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

It should be noted that, in the present invention, unless explicitly specified and limited otherwise, terms such as "mounted," "connected," "secured" and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

It is also contemplated that in the present invention, a first feature "on" or "under" a second feature may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium, unless expressly stated or defined otherwise. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the present invention, the longitudinal direction of the substrate is defined as the X-direction, the width direction is defined as the Y-direction, and the direction perpendicular to the large plane of the substrate is defined as the Z-direction, as commonly understood and defined in the art.

Fig. 1 is a schematic diagram illustrating the overall structure of a multi-head array integrated fine adjustment device according to the present invention. As shown in fig. 1, the device mainly comprises a spray head clamping assembly 101, a fixed adjusting seat 102, a mounting element 105, a fastening element 106, a mounting base plate 103 and the like, and the above important components are specifically explained one by one with reference to the accompanying drawings.

The showerhead holder assembly 101 is used to expansively array a plurality of sprayers and preferably includes a dovetail clamp assembly 1011, a mounting plate 1012, an adjustment screw sleeve 1013, an adjustment micrometer 1014, a dowel 1015, and the like. Wherein the number of the dovetail clamp assemblies 1011 is more than two, the dovetail clamp assemblies are fixedly installed on the mounting plate 1012 respectively in an array splicing mode, and then each spray head 104 is installed and pressed; the mounting plate 1012 may preferably be provided with a boss surface, and by combining with a corresponding boss surface provided on each dovetail clip assembly 1011, the consistency of the splice in the Y-direction when the plurality of spray heads 104 are integrally mounted is ensured.

The adjusting screw sleeve 1013 and the adjusting thousand heads 1014 are respectively connected and installed between the mounting plate 1012 and the dovetail seat 10111 of each dovetail clamp assembly 1011, and are used for further adjusting the splicing consistency of a plurality of spray heads in the Y-direction after being integrally installed; the pins 1015 are connected and installed between the mounting plate 1012 and each dovetail base 10111, and are used for ensuring parallel and equal-height positioning of the dovetail clamp assembly 1011 in the Z-direction when the dovetail clamp assembly is installed on the mounting plate 1012;

the fixed adjusting seats 102 are symmetrically arranged on two sides of the mounting plate 1012 and are matched with the mounting elements 105 to fixedly arrange the spray head clamping assembly 101 on the mounting bottom plate 103; the fastening elements 106 are correspondingly arranged near the mounting elements 105, and deform the fixed adjustment seat 102 through tightness adjustment between the fastening elements and the mounting elements 105; the fixed adjustment seat 102, the mounting element 105 and the fastening element together constitute a first adjustment unit, thereby performing adjustment of the spatial attitude of the head clamping assembly 101, and further improving parallelism between the entire bottom surface of the integrated mounting of the plurality of heads 104 and the printing substrate 30.

According to a preferred embodiment of the present invention, for the mounting plate 1012, a first boss surface 101115 is preferably provided thereon, and a second boss surface 1017 and a third boss surface 101121 are preferably provided on the dovetail base 10111 of each dovetail clip assembly 1011, so that the consistency of the splice in the Y direction when the plurality of spray heads are integrally mounted is ensured by the combination of these boss surfaces.

More specifically, for example, two fixing adjustment seats 102 may be provided, respectively fixedly mounted on both side surfaces of the mounting plate 1012, and the head clamping assembly 101 is fixedly mounted on the mounting base plate 103 through the fixing adjustment seats 102 and the mounting member 105 in the form of a screw, while a fastening member 106 in the form of a fastening screw is mounted near the mounting member 105; the number of mounting elements 105 is equal to the number of fastening elements 106; the fixed adjusting seat 102, the mounting element 105 and the fastening element 106 may form the first adjusting unit 40, and through the matching adjustment of the first adjusting unit, a certain measurement monitoring means may be used in combination, so that the fixed adjusting seat 102 generates an expected micro deformation, and the spatial posture of the nozzle clamping assembly 101 is adjusted according to an expected target, so that the parallelism of the two spliced nozzle bottom surfaces 1045 relative to the printing substrate as a whole is improved.

The showerhead clamping assembly may preferably include a dovetail clamp assembly 1011, a mounting plate 1012, an adjustment screw sleeve 1013, an adjustment micrometer 1014, a dowel 1015, and the like. The spray head clamping assembly can be configured and installed to be two or more than two dovetail clamp assemblies according to requirements, the size of the mounting plate is correspondingly expanded according to the number of the spray heads, the array installation of the plurality of dovetail clamp assemblies is used for realizing the array splicing of multiple spray heads, and the two dovetail clamp assemblies 1011 spliced by the arrays are respectively fixedly installed on the mounting plate 1012 through the inner hexagon screws 10151 of the adjusting screw sleeves 1013.

The two spray heads 104 are inserted into one dovetail groove 101114 respectively through the dovetails 1016, and the first stop block 1041 of the spray heads 104 is accurately positioned on the bottom surface of the dovetailed seat 10111, so that the consistency of the spray holes 1046 of the two splicing spray heads 104 in the Z direction is ensured to reach the expected target.

In addition, when the consistency of the Z-direction splicing of the spray holes on the bottom surfaces 1045 of the two spray heads needs to be further improved, the first stop block 1041 can be changed into the second stop block 1042, the second set screw 1043 is screwed into the screw hole of the second stop block, the third adjusting unit 70 is composed of the second stop blocks 1042, 1043 and the nut, then the extension amount of the second set screw is adjusted, the height change of the spray heads 104 in the Z-direction is adjusted, the consistency of the Z-direction splicing of the spray holes on the bottom surfaces 1045 of the two spray heads is further improved, and after the expected target is reached, the nut is screwed into the lower end of the second set screw 1043, and the second set screw 1043 is fixed.

The adjusting thousand heads 1014 are fixedly installed on the dovetail seat 10111 through screw fit, the pins 1015 can be fixedly installed in pin holes of the mounting plate 1012 through interference fit, the pins 1015 are used for positioning when the dovetail clamp assemblies are installed, pin holes corresponding to the pins 1015 are formed in the dovetail seat 10111, and when the two dovetail clamp assemblies 1011 are installed on the mounting plate 1012 in parallel, a parallel relation and an equal-height relation with certain precision can be kept in the Z direction perpendicular to the base plate 30.

Referring to fig. 8, in accordance with a preferred embodiment of the present invention, the adjustment head 1014 preferably may include a threaded shaft 10141, a first nut 10142 and a first set screw 10143, wherein one end of the threaded shaft 10141, such as an outer hexagonal shaft section, for example, and the other end, such as a semicircular head surface, is threaded into a threaded bore of the first nut 10142 and then compressed via the first set screw 10143; the first set screw 10143 is radially mounted on a large diameter section of the outer circumferential surface of the first nut. When the threaded rod 10141 is screwed into the appropriate depth of the threaded hole of the nut, it is compressed by the set screw radially installed through the large diameter section of the outer peripheral surface of the nut. Typically, the semi-circular head face of the screw 10141 is temporarily out of contact with the dovetail block 10111.

Each of the dovetail clip assemblies preferably corresponds to four sets of the adjustment screw sleeves. Referring to fig. 7, according to another preferred embodiment of the present invention, the adjustment screw housing 1013 may preferably include a socket head cap screw 10131, a screw housing 10132, and a second nut 10135, wherein a threaded section of the socket head cap screw 10131 is installed with a clearance fit with the screw housing 10132, and the second nut 10135 is screwed into an external thread of the screw housing 10132 by a screw fit. Each dovetail clip assembly 1011 preferably corresponds to four sets of adjustment screw sleeves 1013.

The dovetail clip assembly, one of the key assemblies, will be explained in more detail below in conjunction with fig. 4-6.

As shown in more detail in fig. 3 and 4, the dovetail clamp assembly 1011 described above preferably includes a dovetail block 10111, an adjustment shaft 10112, a bead 10113, a first spring 10114, a guide shaft 101110, a second spring 101111, a compression block 101112, a compression screw 101113, and the like, as will be explained in greater detail below.

Referring to fig. 5, the dovetail base 10111 is provided with dovetail grooves 101114, and the dovetail grooves 101114 are mounted in cooperation with the nozzle dovetails 1016 provided on the respective nozzles, and perform left and right pressing by the pressing blocks 101112; the guiding shaft 101110 is used for guiding the compaction block 101112, a first shaft section at the left end of the guiding shaft is in clearance fit with a guiding hole correspondingly arranged on the dovetail base 10111, a second shaft section at the left end of the guiding shaft is in clearance fit with the second spring 101111, compaction force is provided for the compaction block 101112 through the second spring 101111, and a right shaft section of the guiding shaft is used for screwing in the compaction screw 101113; the guide shaft 101110, the pressing block 101112, the second spring 101111, and the pressing screw 101113 may collectively constitute the head pressing unit 60, thereby enabling uniform pressing when the plurality of heads 104 are integrally installed.

The adjusting shaft 10112 is screwed into a threaded hole corresponding to the dovetail seat 10111 through a threaded shaft section; the first spring 10114 is sleeved on the adjusting shaft 10112, one end of the first spring 10114 is arranged in the spring seat 10115, and the other end of the first spring is arranged on a guide shaft section of the adjusting shaft 10112; the small beads 10113 are plugged into corresponding stepped through holes on the side surface of the dovetail base 10111, are then placed near the conical shaft section of the adjusting shaft 10112 and are extruded by the conical shaft section to perform left-right movement; the adjusting shaft 10112, the first spring 10114 and the small beads 10113 together form a second adjusting unit, so that the splicing consistency of the plurality of spray heads in the X direction during integrated installation is ensured, and the parallel degree between the bottom surface of each spray head and the printing substrate is further adjusted.

In addition, the dovetail clamp assembly 1011 further includes a handle 10116, a first pin 10117, a second pin 10118, and a cam lever 10119, wherein: the handle 10116 is rotatably arranged at the upper end of the cam rod 10119 through the first pin shaft 10117, and is simultaneously installed on the dovetail seat 10111 through the second pin shaft 10118; the lower end of the cam rod 10119 is provided with a first flange 101116, and the compaction block 101112 is correspondingly provided with a second flange 101117 which is kept separate from or in contact with the first flange 101116; in this way, the handle 10116, the first pin 10117, the second pin 10118, and the cam lever 10119 together constitute a pressing operation unit, thereby driving the head pressing unit such that the pressing block presses or releases the respective heads.

More specifically, as exemplarily shown in fig. 6a to 6c, the dovetail base 10111 is provided with a dovetail groove 101114, and the dovetail groove 101114 and the nozzle dovetail 1016 are preferably mounted by wedge-face clearance fit and pressed by wedge-face of the pressing block 101112; the guide shaft 101110 provides guide for the compaction block 101112, and the maximum shaft section at the left end of the guide shaft 101110 is in clearance fit with the corresponding guide hole of the dovetail base 10111 and keeps a reasonable clearance; the second shaft section at the left end of the guide shaft 101110 is installed in clearance fit with the second spring 101111, and the right end face of the largest shaft section at the left end of the guide shaft 101110 and the right bottom face of the guide hole of the dovetail seat 10111 are used as the left and right limiting faces of the second spring 101111 together.

According to a preferred embodiment of the present invention, the second spring 101111 provides a pressing force for the pressing block 101112, the pressing block 101112 is locked into the right end face of the guide shaft 101110 by the first screw 101113, but the circumferential bottom surface of the head of the first screw 101113 is not closely attached to the counter bore bottom surface of the pressing block 101112, but a reasonable first gap is maintained, and the threaded section of the first screw 101113 and the through hole corresponding to the pressing block 101112 maintain a reasonable second gap; the outer edge of the circumferential bottom surface of the head of the first screw 101113 is provided with a tiny fillet, and the inner edge of the bottom surface of the counter bore matched with the first screw 101113 of the pressing block 101112 is provided with a tiny fillet; the upper and lower sides of the compaction block 101112 are kept with a reasonable third gap with the upper and lower sides of the groove corresponding to the dovetail base 10111; the first shaft section at the right end of the guide shaft 101110 and the corresponding hole of the compressing block 101112 keep a reasonable fourth clearance, and the design of the small round angle, the small chamfer, the first clearance, the second clearance, the third clearance and the fourth clearance ensures that the wedge-shaped surface of the compressing block 101112 can be self-adaptively attached to the wedge-shaped surface of the nozzle dovetail 1016 under the elasticity of the second spring 101111.

The guide shaft 101110, the second spring 101111, the compression block 101112 and the first screw 101113 form a spray head compression unit 60, and the spray head compression unit is provided with two groups which are arranged up and down, so that the wedge-shaped surface of the spray head dovetail 1016 can be compressed more uniformly; the second pin shaft 10118 is fixedly arranged on the dovetail seat 10111, the handle 10116 is in clearance fit with the second pin shaft 10118, so that the handle 10116 can rotate around the second pin shaft 10118 for a certain angle, and the first pin shaft 10117 is in interference fit with the handle 10116 and in clearance fit with a slotted hole at the upper end of the cam rod 10119; two groups of first flanges 101116 are designed at the lower end of the cam rod 10119, and correspondingly, a second flange 101117 is designed at the left side of the compaction block 101112; when the compaction block 101112 needs to compact the sprayer 104, the first flange 101116 indirectly drives the cam rod 10119 to move upwards through the first pin shaft 10117 by rotating the handle 10116 anticlockwise, so that the first flange 101116 and the second flange 101117 are staggered, and at the moment, the compaction block 101112 compacts the dovetail wedge-shaped surface of the sprayer 104 under the elasticity of the second spring 101111; when the spray head 104 needs to be released, the handle 10116 is rotated clockwise, and the cam rod 10119 is indirectly driven to move downwards through the first pin shaft 10117, so that the first flange 101116 presses the second flange 101117 rightwards, and the pressing block 101112 releases the spray head 104.

In addition, the adjusting shaft 10112 is screwed into a corresponding threaded hole of the Yan Wei 10111 through a threaded shaft section, for example, a small ball 10113 in the form of a steel ball is plugged in from a left end of a corresponding stepped through hole on the side surface of the dovetail base 10111, and is stopped at the right end, the diameter of the left end is larger than that of the small ball 10113, and the diameter of the right end hole is smaller than that of the small ball 10113; when the adjusting shaft 10112 is screwed into the screw hole corresponding to the Yan Wei 10111, the conical shaft section of the adjusting shaft 10112 can extrude the small bead 10113 to different degrees according to the screwing depth of the adjusting shaft 10112, and the small bead 10113 can move in the left-right direction to extrude the nozzle by matching with the pressure of the compressing block 101112 to the dovetail 1016 of the nozzle, so that the left-right direction position of the nozzle 104 is adjusted; the first spring 10114 provides a certain damping for the adjusting shaft 10112, so that the adjusting shaft 10112 can be adjusted more stably during adjustment, a guide shaft section 101120 of the adjusting shaft 10112 is installed in clearance fit with a corresponding hole of the dovetail seat 10111, a reasonable clearance is maintained, and the diameter of the guide shaft section 101120 is larger than the inner diameter of the first spring 10114; one end of the first spring 10114 is arranged at the bottom of a spring blind hole of the spring seat 10115, and the other end of the first spring passes through an optical axis section of the adjusting shaft 10112 and is stopped at one end face of a guide shaft section 101120 of the adjusting shaft 10112; the spring seat 10115 is arranged in a groove corresponding to the dovetail seat 10111 and is pressed and fixed by the pressure of the first spring 10114; the matching design of the threaded shaft section and the conical shaft section of the adjusting shaft 10112 not only can convert the axial adjusting displacement of the adjusting shaft 10112 into the left-right displacement of the small beads 10113, but also greatly improves the adjusting resolution of the adjusting shaft 10112.

Accordingly, the second adjusting unit 50 composed of the adjusting shaft 10112, the small bead 10113, the first spring 10114 and the spring seat 10115, for example, two groups of adjusting units are symmetrically arranged up and down, so that not only can the left and right displacement of the spray heads 104 be more uniformly adjusted, but also the splicing distance 1047 of the two splicing spray heads 104 can be better ensured, the adjacent nozzle spacing of the two splicing spray heads 104 at the adjacent splicing position is consistent with the nozzle spacing of the single spray head 104, and the splicing consistency of the nozzle 1046 of the two spray heads 104 in the X direction can reach the expected target. The parallelism of the bottom surface of the single spray head relative to the printing substrate can be adjusted by controlling the left-right displacement of the beads arranged up and down; thereby ensuring that the parallelism of the bottom surfaces 1045 of the two nozzles reaches the desired target.

In addition, the two sets of second adjusting units 50 symmetrically arranged up and down are generally adjusted sequentially according to specific situations, when one set of second adjusting units is adjusted, the spray head 104 rotates around the Y direction by a small angle, and the small round corners, the small chamfers, the first gaps, the second gaps, the third gaps and the fourth gaps of the compressing unit 60 ensure the space for the spray head 104 to rotate around the Y direction by a small angle, and meanwhile, the compressing block 101112 always follows the compressing spray head 104 under the left and right elasticity of the second spring 101111.

According to another preferred embodiment of the present invention, the surface of the mounting plate 1012 combined with the dovetail base 10111 is provided with the second boss surface 1017 and the third boss surface 101121, the other surface of the dovetail base 10111 is provided with the first boss surface 101115, and the design of all the boss surfaces can improve the processing precision, ensure the assembly precision of the mounting plate 1012, the dovetail clamp assembly 1011 and the spray heads 104, indirectly ensure that when the two spray heads are spliced in an array, the splicing consistency of the spray holes 1046 of the two spray heads 104 in the direction perpendicular to the second boss surface 1017, namely the Y direction, achieves the expected target.

According to another preferred embodiment of the present invention, the first boss surface, the second boss surface, the third boss surface, the dovetail groove wedge surface and the compression block wedge surface are all finish machining surfaces; the left side surface and the right side surface of the mounting plate, the two mounting surfaces of the fixed adjusting seat and the upper surface and the lower surface of the mounting bottom plate are finish machining surfaces. In addition, the lower bottom surface of forked tail seat is the finish machining face, through the location of the first stop piece of shower nozzle, guarantees the shower nozzle can accurate location in the forked tail direction, thereby guarantees all the shower nozzle is perpendicular to shower nozzle bottom surface also is Z splice uniformity along the direction.

According to another preferred embodiment of the invention, the second stop block is used as an improvement of the first stop block, a threaded hole is formed in the bottom surface of the second first stop block, and according to the second set screw, a third adjusting unit is formed by the second stop block, the second set screw and the nut, and the splicing consistency of all the spray heads in the direction perpendicular to the bottom surface of the spray heads, namely the Z direction, is further improved by adjusting the position of the second set screw in the axial direction.

When the consistency of the Y-direction splicing of the spray holes of the bottom surfaces 1045 of the two spray heads needs to be further improved, the adjustment of the micrometer head 1014 can be preferentially performed, and the specific adjustment method is as follows:

according to the specific situation, one or two groups of first fastening screws 10143 for adjusting the thousand-component heads 1014 are loosened, the axial extension of the semicircular head surface of the screw 10141 is adjusted, the semicircular head surface of the screw 10141 is directly contacted with the surface of the nozzle 104, which is attached to the dovetail seat 10111, and is jacked to a proper height, and the change of the height is strictly monitored by proper means, at the moment, the other side is still supported by the first boss surface of the dovetail seat 10111, which is equivalent to enabling the dovetail clamp assembly 1011 to rotate a tiny angle around the direction of the dovetail groove 101114, so that the parallelism of the spray holes of the two spliced nozzles 104 in the X direction is further improved.

When the installation accuracy requirement of the spray head is higher, the spray head can be adjusted by adjusting a plurality of groups of adjusting screw sleeves according to specific conditions, and the specific adjusting method is as follows:

the heights of the plurality of groups of nut end faces extending out of the second boss surface of the mounting plate in the axial direction are reasonably controlled, and the change of the heights is strictly monitored by proper means, so that the spatial postures of all the integrated spray heads are adjusted according to the expected targets, and the splicing consistency of all spray holes of the spray heads in the direction perpendicular to the second boss surface, namely the Y direction, reaches the higher expected targets.

In this way, by fine-adjusting the multiple groups of adjusting screw sleeves 1013, the height of one end surface of the screw sleeve of the multiple groups of adjusting screw sleeves 1013 extending out of the second boss surface 1017 of the mounting plate 1012 is reasonably controlled, and the change of the height is strictly monitored by a proper means, so that the spatial postures of the two spliced spray heads 104 are adjusted according to the expected targets, and when the splicing consistency of the spray holes 1046 of the two spliced spray heads 104 in the Y direction, that is, the straightness in the X direction reaches the expected targets, the nuts 10133 are screwed down.

In addition, according to the specific situation, the above operation may need to be repeatedly adjusted until the splicing consistency of the spray holes 1046 of the two spray heads 104 in the direction perpendicular to the second boss surface 1017, that is, the Y direction reaches a higher expected target. When the splicing precision of the spray head needs to be adjusted, the adjustment of the thousand heads is preferentially adjusted; the adjusting thousand heads can be adjusted at any time, and the adjusting screw sleeve cannot be easily adjusted.

In summary, according to the integrated precise adjustment device for the multi-nozzle array, through the structural composition of the whole device and the pertinence improvement of a plurality of key modules, the integrated precise adjustment operation of the micro-nozzle array can be smoothly realized in a manner of compact structure, high flexibility and convenient control, and the high consistency of the spray holes on the bottom surface of each nozzle in the X direction, the Y direction, the Z direction perpendicular to the substrate plane and other spatial positions can be ensured, so that the integrated precise adjustment device for the multi-nozzle array is particularly suitable for the inkjet manufacturing application occasions of flexible devices such as OLED, RFID, thin film solar cells, wearable flexible equipment, PCB, intelligent skin and the like.

It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims

1. The utility model provides an integrated accurate adjusting device of many shower nozzles array, its characterized in that, this device includes shower nozzle clamping subassembly (101), fixed adjustment seat (102), mounting element (105), tight component (106) and mounting plate (103), wherein:

the spray head clamping assembly (101) is used for integrating a plurality of spray heads (104) in an expandable array and comprises a dovetail clamping assembly (1011), a mounting plate (1012), an adjusting screw sleeve (1013), an adjusting thousand heads (1014) and pins (1015), wherein the number of the dovetail clamping assembly (1011) is more than two, the dovetail clamping assembly is fixedly mounted on the mounting plate (1012) respectively in an array splicing mode, and then each spray head (104) is mounted and compressed; the mounting plate (1012) is provided with a boss surface, and the splicing consistency of a plurality of spray heads (104) in the Y-direction during integrated mounting is ensured through the combination of the mounting plate and the boss surface corresponding to the dovetail clamp assemblies (1011); the adjusting screw sleeve (1013) and the adjusting thousand heads (1014) are respectively connected and installed between the mounting plate (1012) and the dovetail bases (10111) of the dovetail clamp assemblies (1011) and used for further adjusting the splicing consistency of the spray heads in the Y-direction after being integrally installed; the pins (1015) are connected and installed between the mounting plate (1012) and each dovetail seat (10111) and are used for ensuring parallel and equal-height positioning in the Z-direction when the dovetail clamp assembly (1011) is installed on the mounting plate (1012);

The fixed adjusting seats (102) are symmetrically arranged on two sides of the mounting plate (1012) and are matched with the mounting elements (105) to fixedly arrange the spray head clamping assembly (101) on the mounting bottom plate (103); the fastening elements (106) are correspondingly arranged near the mounting elements (105) and deform the fixed adjusting seat (102) through tightness adjustment between the fastening elements and the mounting elements; the fixed adjusting seat (102), the mounting element (105) and the fastening element jointly form a first adjusting unit, so that the space posture of the spray head clamping assembly (101) is adjusted, and the flatness between the whole bottom surface and the printing substrate (30) after the integrated mounting of the spray heads (104) is improved;

in addition, the dovetail clamp assembly (1011) comprises an adjusting shaft (10112), a small ball (10113), a first spring (10114), a guide shaft (101110), a second spring (101111), a pressing block (101112) and a pressing screw (101113) besides the dovetail seat (10111), wherein:

2. The integrated fine adjustment device of claim 1, further comprising a handle (10116), a first pin (10117), a second pin (10118), and a cam lever (10119) for the dovetail clip assembly (1011), wherein:

3. The integrated fine adjustment device for a multi-nozzle array according to claim 2, wherein the head of the pressing screw (101113) is provided with a circumferential bottom surface and a tiny round angle at the outer edge, and the inner edge of the bottom surface of the counter bore, which is matched with the pressing screw (101113), of the pressing block (101112) is provided with a tiny round angle; in addition, a first gap is reserved between the circumferential bottom surface of the head part of the compression screw (101113) and the counter bore bottom surface of the compression block (101112), a second gap is reserved between the through hole of the compression block (101112) and the threaded section of the compression screw (101113), a third gap is reserved between the upper side surface and the lower side surface of the compression block (101112) and the upper side surface and the lower side surface of the slotting corresponding to the dovetail seat (10111), and a fourth gap is reserved between the right end shaft section of the guide shaft (101110) and the corresponding hole of the compression block (101112); in this way, the design of the micro fillet, the micro chamfer, the first gap, the second gap, the third gap and the fourth gap together ensure that the compaction block (101112) is self-adaptively and low in adhesion to the nozzle dovetail (1016) of each nozzle under the elastic force of the second spring (101111).

4. A multi-head array integrated fine adjustment device according to any one of claims 1-3, characterized in that, for the mounting plate (1012), a first boss (101115) is provided thereon, and a second boss (1017) and a third boss (101121) are provided on the dovetail seat (10111) of each dovetail clip assembly (1011) correspondingly, whereby the consistency of the splice in the Y-direction when a plurality of heads are integrated is ensured by the combination of these bosses.

5. A multi-head array integrated fine adjustment device according to any one of claims 1-3, characterized in that for the adjustment of the thousand heads (1014) it comprises a threaded shaft (10141), a first nut (10142) and a first set screw (10143), wherein one end of the threaded shaft (10141) is an external hexagonal shaft section and the other end is a semicircular head face and is screwed into a threaded hole of the first nut (10142) and then compressed via the first set screw (10143); the first set screw (10143) is radially mounted on a large-diameter section of the outer peripheral surface of the first nut (10142).

6. A multi-head array integrated fine adjustment device according to any one of claims 1-3, characterized in that for the adjustment screw sleeve (1013) it comprises a socket head cap screw (10131), a screw sleeve (10132) and a second nut (10135), wherein the thread section of the socket head cap screw (10131) is mounted with a clearance fit to the screw sleeve (10132), and the second nut (10135) is screwed into the external thread of the screw sleeve (10132) by means of a thread fit.

7. A multi-head array integrated fine adjustment device according to any one of claims 1-3, characterized in that, for the above-mentioned plurality of heads (104), they are respectively inserted into the dovetail grooves (101114) of the dovetail seats (10111) through the head dovetails (1016), and the heads are respectively provided with first stop blocks (1041), thereby ensuring the consistency of the splicing of the spray holes (1046) in the Z direction when the plurality of heads are integrally installed.

8. A multiple nozzle array integrated fine adjustment device according to claim 7, characterized in that for the plurality of nozzles (104), the first stop block (1041) is replaced by a second stop block (1042), the threads of the second stop block (1042) being adapted to be screwed into a second set screw (1043) and then tightened with a third nut; the second stop block (1042), the second set screw (1043) and the third nut jointly form a third adjusting unit (70), so that the splicing consistency of the spray holes (1046) of the spray heads in the Z-direction after the spray heads are integrally installed is further adjusted.

9. A multi-nozzle array integrated fine adjustment device according to any one of claims 1-3, characterized in that the printing substrate (30) is any one of OLED, RFID, thin film solar cell, wearable flexible device, PCB, smart skin.