A kind of arc medium intrados printing equipment
Technical field
The invention belongs to digital printing technical field, and in particular to a kind of print media for being applied to have globoidal structure
Intrados printing equipment.
Background technology
Current digital printing is widely used to the industries such as advertisement, building materials, medical treatment, electronics.But surface of print media must
Must smooth or high low head maximum be no more than 5mm.Print then difficult for curved surface.One side curved surface dielectric space curved surface is answered
Miscellaneous changeable, printing device can not perceive concrete form;Even if on the other hand its curved-surface shape is perceived, by shower nozzle volume institute itself
Limit can not be completed close to printing.So curved surface medium printing is also confined to the printing of ruled surface at present.
The content of the invention
Goal of the invention:Present invention aims at there is provided a kind of arc suitable for larger radian in view of the shortcomings of the prior art
The cambered surface printing equipment of shape medium.
Technical scheme:A kind of arc medium intrados printing equipment of the present invention, including gantry base, the frame
Print platform is set on base, and the print platform is driven by Y-direction drive component and moved back and forth in Y-direction, on the print platform
Fix placement arc print media on a pair of dielectric support bars, dielectric support bar;
Fixed perpendicular to the direction of the gantry base on door frame, the door frame crossbeam and fix rotary drive assembly, the rotation
Drive component, which is connected, has printhead gangbar mounting hole on rotating seat, rotating seat, printhead gangbar passes through the mounting hole
It is fixed on rotating seat, the printhead gangbar bottom connects print head assembly;Rotary drive assembly is driven by rotating seat
Printhead gangbar is along X to swing, and printhead gangbar drives print head assembly along X to swing;
Fixing printing head gangbar Z-direction lifting assembly is gone back on the rotating seat, the printhead gangbar Z-direction lifting assembly drives
Print head assembly is vertically moved up and down;
Y-direction drive component, Z-direction lifting assembly and rotary drive assembly joint is controlled to realize and be situated between to arc by central control system
The print job of matter.
Further, the Y-direction drive component includes setting on Y-direction motor and Y-direction drive lead screw, the print platform
There is the transmission screw supporting with Y-direction drive lead screw, Y-direction drive lead screw passes through horizontal in frame ground along Y-direction after the transmission screw
On seat, and Y-direction drive lead screw one end connects the Y-direction motor.
Further, have in the trouble-free operation in gantry base for ease of print platform, the gantry base for printing
The directive slide track that platform is slided.
Further, the rotary drive assembly includes rotary drive motor, rotation driving reductor, synchronous pulley and same
Walk band, the motor and rotation driving reductor is supporting is fixed on door frame cross rail top;One end of the rotating seat is placed
On door frame crossbeam, synchronous pulley is installed on rotating seat, timing belt bypasses rotating shaft and the synchronous pulley of rotary drive motor, rotated
Motor rotating shaft driving timing belt operation, so as to drive synchronous pulley to operate, synchronous pulley drives rotating seat along X to swing.
Further, the tail end of the rotating seat installs encoder.
Further, the Z-direction lifting assembly includes lifting motor, lifting driving reductor, lifting motor
Mounting seat and lifting transmission swivel nut, the lifting motor mounting seat are fixed on the rotating seat, lifting driving electricity
Machine and lifting drive reductor is supporting to be fixed in the lifting motor mounting seat, and the lifting transmission swivel nut is fixed on
Lift in motor mounting seat;The side of the printhead gangbar has elevating screw thread, and opposite side opens up guide groove;Institute
State and the linear bearing with guide rail be provided with mounting hole on rotating seat, the printhead gangbar it is supporting be arranged on described
In mounting hole;Lift motor and rotate drive lifting motor mounting seat rotation, and then drive lifting to be driven swivel nut and turn
Dynamic, lifting transmission swivel nut and the elevating screw thread of printhead gangbar side coordinate, and realize lifting of the printhead gangbar in Z-direction
Operation.
Further, the print head assembly includes jet nozzle, shower nozzle, shower nozzle bottom plate and two stage ink box group, the shower nozzle
Top of the trellis is connected with printhead gangbar, and bottom installs to install on shower nozzle bottom plate, shower nozzle bottom plate to be located on shower nozzle, the jet nozzle
The rotating shaft of level is installed in position above shower nozzle, and two stage ink box group is set in the rotating shaft, and two stage ink box bottom loaded is negative
Weight;
Install to survey on shower nozzle bottom plate and shower nozzle drive control plate is installed at the top of paper sensor, jet nozzle, surveying paper by encoder record passes
The umber of pulse for the arc medium right boundary that sensor is detected, printing starting point setting value and ink-jet are provided to shower nozzle drive control plate
Pulse signal;The concrete principle of ink-jet pulse signal is:Print resolution is set as a, medium radius is R, what each pulse turned
Angle is e, the ink dot number n of each pulse printing;Physical relationship is:N=a*e*R/25.4, is then rounded to n.
Further, the two stage ink box is connected just(It is negative)Potential source.
Further, solidify for the ease of realizing in printing, it is to avoid caused spray figure becomes flower, reduction production not in time for solidification
UVLED lamps are installed on the problem of quality, the shower nozzle bottom plate.
Further, the radius of the arc medium is 400~1200mm, chord length≤1200mm, length≤1300mm.
Beneficial effect:(1)This equipment is by setting medium Y-direction drive component, printhead Z-direction lifting assembly and rotation driving
Component, by controller to triple combination's control, realizes the print job to arc medium, overcomes in the prior art to can only
To smooth medium printing, and arc medium can not be printed or the problem of printing effect is poor;(2)Pass through coding in this equipment
Device, survey paper sensor, shower nozzle drive control plate and central controller and jointly control, row bound first is entered to arc medium and swept
Face, then sends the signals such as printing starting point to shower nozzle drive control plate, realizes the accurate printing to arc medium, improves printing production
The quality of product;(3)Two stage ink box is arranged in horizontal rotating shaft in this equipment, and heavy burden is set in two stage ink box bottom, is protected
Ink in card two stage ink box is constantly in horizontality in print procedure, it is ensured that the normal printing job of shower nozzle;(4)Originally set
Standby middle two stage ink box connection is just(It is negative)Potential source carries out print job, and malleation is used for pressing ink, shower nozzle is safeguarded, negative pressure is used for keeping
Two stage ink box ink inside will not naturally be flowed out due to Action of Gravity Field from shower nozzle, easy to use.
Brief description of the drawings
Fig. 1 is the overall structure diagram of apparatus of the present invention;
Fig. 2 is encoder installation effect schematic diagram in apparatus of the present invention;
Fig. 3 is the structural representation of print head assembly in apparatus of the present invention;
Fig. 4 is the partial enlarged drawing of printhead bottom plate in the present invention;
Fig. 5 is the structural representation of Z-direction lifting assembly in the present invention;
Fig. 6 is printhead gangbar height in the present invention and arc medium radius relationship schematic diagram;
Wherein:1st, gantry base, 2, print platform, 3, Y-direction drive component, 31, Y-direction motor, 32, Y-direction drive lead screw, 4,
Dielectric support bar, 5, arc print media, 6, encoder, 7, door frame, 71, door frame crossbeam, 72, leveling support, 8, rotation driving
Component, 81, rotary drive motor, 82, rotation driving reductor, 83, timing belt, 9, rotating seat, 91, linear bearing, 10, printing
Head gangbar, 101, elevating screw thread, 11, print head assembly, 111, jet nozzle, 112, shower nozzle, 113, shower nozzle bottom plate, 114, two grades
Print cartridge group, 115, shower nozzle drive control plate, 116, rotating shaft, 117, bear a heavy burden, 118, survey paper sensor, 119, UVLED lamps, 12, Z-direction
Lifting assembly, 121, lifting motor, 122, lifting driving reductor, 123, lifting motor mounting seat, 124, rise
Drop transmission swivel nut, 13, central controller.
Embodiment
Technical solution of the present invention is described in detail below by accompanying drawing, but protection scope of the present invention is not limited to
The embodiment.
Embodiment 1:Set and beat in a kind of arc medium intrados printing equipment, including gantry base 1, the gantry base
Platform 2 is printed, the print platform 2 is driven by Y-direction drive component 3 and moved back and forth in Y-direction, is fixed a pair on the print platform 2
Arc print media 5 is placed on dielectric support bar 4, dielectric support bar 4;
Fixed perpendicular to the direction of the gantry base on door frame 7, the door frame crossbeam 71 and fix rotary drive assembly 8, it is described
Rotary drive assembly 8, which is connected, has printhead gangbar mounting hole on rotating seat 9, rotating seat 9, printhead gangbar 10 passes through institute
State mounting hole to be fixed on rotating seat 9, the bottom of printhead gangbar 10 connects print head assembly 11;Rotary drive assembly 8
Printhead gangbar is driven along X to swing by rotating seat 9, printhead gangbar drives print head assembly along X to swing;Door frame
Bottom has leveling support 72, adjusts the levelness of door frame crossbeam;
Fixing printing head gangbar Z-direction lifting assembly 12, the printhead gangbar Z-direction lifting assembly are gone back on the rotating seat 9
Print head assembly is driven vertically to move up and down;
In the present apparatus, the Y-direction drive component 3 is included on Y-direction motor 31 and Y-direction drive lead screw 32, the print platform 2
Provided with the transmission screw supporting with Y-direction drive lead screw, Y-direction drive lead screw 32 passes through horizontal in machine along Y-direction after the transmission screw
On frame base 1, and the one end of Y-direction drive lead screw 32 connects the Y-direction motor 31, and motor 31 drives Y-direction to pass after opening
Dynamic screw mandrel 32 is rotated, and Y-direction drive lead screw 32, which is rotated, drives print platform 2 to be moved in gantry base 1, by controlling Y-direction to drive
The rotating of motor, realizes the reciprocating motion of print platform;There is the directive slide track slided for print platform in gantry base.
In the present apparatus, rotary drive assembly 8 include rotary drive motor 81, rotation driving reductor 82, synchronous pulley and
Timing belt 83, the motor 81 and rotation driving reductor 82 are supporting to be fixed on the top of door frame crossbeam 71;The rotating seat 9
One end be set on door frame crossbeam 71, synchronous pulley is installed, timing belt 83 bypasses the rotating shaft of rotary drive motor on rotating seat
With synchronous pulley, rotary drive motor rotating shaft driving timing belt operation, so as to drive synchronous pulley to operate, synchronous pulley drives rotation
Swivel base, by controlling the positive and negative dress of rotary drive motor, realizes print head assembly in reciprocally swinging upward X along X to swing;Rotation
The tail end of transposase 19 installs encoder 6.
In the present apparatus, the Z-direction lifting assembly 12 includes lifting motor 121, lifting driving reductor 122, lifting
Motor mounting seat 123 and lifting transmission swivel nut 124, the lifting motor mounting seat 123 are fixed on the rotation
On transposase 19, lifting motor 121 and lifting drive reductor 122 is supporting to be fixed on the lifting motor mounting seat
On 123, the lifting transmission swivel nut 124 is fixed in lifting motor mounting seat 123;The printhead gangbar 10
Side has elevating screw thread 101, and opposite side opens up guide groove;It is provided with mounting hole on the rotating seat with the straight of guide rail
Bobbin holds 91, and the printhead gangbar 10 is supporting to be arranged in the mounting hole;Lift motor 121 and rotate drive liter
Drop motor mounting seat and rotate 123, and then drive lifting transmission swivel nut 124 to rotate, lifting transmission swivel nut 124 and printhead
The elevating screw thread of the side of gangbar 10 coordinates, and realizes printhead gangbar in Z by the rotating for controlling to lift motor
Upward lift work.
In the present apparatus, print head assembly 11 includes jet nozzle 111, shower nozzle 112, shower nozzle bottom plate 113 and two stage ink box group
114, the jet nozzle top is connected with printhead gangbar, and bottom, which is installed, installs spray on shower nozzle bottom plate 113, shower nozzle bottom plate 113
First 112, the rotating shaft 116 that level is installed in the position above shower nozzle is located on the jet nozzle 111, two stage ink box group 114 is set in
In the rotating shaft 116, and two stage ink box bottom loaded heavy burden 117;Two stage ink box is connected just(It is negative)Potential source;
Install to survey on shower nozzle bottom plate 113 and shower nozzle drive control plate is installed at the top of paper sensor 118 and UVLED lamps 119, jet nozzle
115, the umber of pulse for surveying the arc medium right boundary that paper sensor is detected is recorded by encoder, is carried to shower nozzle drive control plate
For printing starting point setting value and ink-jet pulse signal;The concrete principle of ink-jet pulse signal is:Print resolution is set as a, is situated between
Matter radius is R, and the angle that each pulse turns is e, the ink dot number n of each pulse printing;Physical relationship is:N=a*e*R/25.4,
Then n is rounded.
In specific operation process, by central controller 13, Z-direction lifting is first adjusted according to the size of arc print media
Component, adjusts to appropriate location fixed, rotary drive assembly starts by print head assembly, is situated between by survey paper sensor detection arc
The sideband signal of matter, and recorded by encoder, printing start, end are determined to calculate, the testing result of encoder record is to shower nozzle
Pulse signal out of ink is provided, realized in arc medium printing, in print procedure, by central controller controls, rotation driving group
After part driving is printed to the surface sweeping of arc medium, Y-direction drive component drives the lattice of arc medium stepping one, and circulation is carried out, until printing
Operation is completed, in print procedure, and the UVLED lamps on shower nozzle bottom plate are further ensured that printing production to the timely solidification of printed product
The quality of product.The arc media size scope printed using the present apparatus is larger, radius be 400~1200mm, chord length≤
1200mm, length≤1300mm, market practicality is stronger.
As described above, although the present invention has been represented and described with reference to specific preferred embodiment, it must not be explained
For to the limitation of itself of the invention., can be right under the premise of the spirit and scope of the present invention that appended claims are defined are not departed from
Various changes can be made in the form and details for it.