Screen printing mechanism
Technical field
The utility model relates to silk-screen printings, are related to printing equipment.
Background technique
Silk-screen printing is a kind of common mode of printing.The screen frame of screen printing mechanism is hinged in shaft and is swung,
Stock (such as paper) is by advancing when swinging lifting, and stock halts after advancing in place, and screen frame swings decline and scrapes
The stock under screen cloth contact in the scraper plate decline pressure screen frame of panel assembly, then scraper plate advances, and stock is by print station
It holds in the palm, cooperation is printed, and after being completed for printing, scraper plate rises, retracts, and screen frame swings lifting, such cycle operation.Printing process
In, stock needs to pause, can not continuously conveying materials printing, and print speed printing speed is slower.
Utility model content
In view of technical problem present in background technique, the technical issues of the utility model is solved, is intended to provide a kind of energy
Enough carry out the screen printing mechanism of continuously conveying materials.
In order to solve the above technical problems, the utility model adopts the following technical solutions: screen printing mechanism, includes net
Frame apparatus and screeding device, screen frame device include screen frame, screen printing forme are arranged in screen frame, screeding device includes scraper plate, scraper plate
The top lifting of screen printing forme is set, it is characterised in that: the screen printing mechanism further includes having stock to walk to expect device, printing
Object walks to expect that device includes the collet held stock and walk material, and collet is located at the lower section of screen printing forme;When printing, scraper plate declines simultaneously
And scraper plate screen frame advanced in unison opposite with collet, scraper plate and collet cooperate the screen printing forme printing in screen frame;After being completed for printing, scrape
Plate rises and scraper plate screen frame opposite with collet retreats.
When printing, scraper plate and collet advanced in unison, screen frame retract;After being completed for printing, scraper plate is synchronous with collet to be retreated, screen frame
Forward.
Collet is using rotation bottom roller, and collet is connected on bracket, and screeding device is connected on bracket, bracket on the rack before
Into and retreat, scraper plate and collet advanced in unison and retrogressing.
Screen frame, which is arranged on the first guide rail, to move forward and retracts, and the first guide rail is arranged on the rack, and scraper plate and collet setting exist
It moves forward and backward on second guide rail.
When printing, scraper plate and collet horizontal synchronization to the left are advanced, and screen frame drives screen printing forme is tiltedly upper to the right to retract;It prints
Cheng Hou, scraper plate and collet are horizontal to the right to be retreated, and screen frame drives screen printing forme to move forward obliquely downward to the left.
The screen printing mechanism further includes having transmission device, and transmission device includes driving motor, driving wheel and transmission belt,
Driving motor drives transmission belt to move back and forth by driving wheel, and screen frame, scraper plate, collet and transmission belt are sequentially connected.
Stock walks to expect that device further includes having the punishment in advance deflector roll for being fixed on the rack rotation, which further includes
There is stock to walk material storage regulating device, it includes stationary guide roller and moveable idler which, which walks material storage regulating device, is lived
Two groups of left and right is arranged in dynamic deflector roll in sliding seat, and it is movable that sliding seat is driven back and forth by power source.
Power source includes servo motor, and left and right moves back and forth servo motor transmission sliding seat on the rack.
The beneficial effects of the utility model are that the screen printing mechanism adds collet, make the scraper plate of collet and screeding device
The opposite screen printing forme advanced in unison in printing, collet can hold stock and walk material, and cooperation screen printing forme is printed, makes to print
During brush stock can continuously conveying materials, do not have to stop, it is more efficient;When printing, collet and scraper plate advanced in unison, screen printing
Version retracts with screen frame, and print speed printing speed faster, is completed for printing rear equal return.Therefore, the utility model has compared with prior art
Substantive distinguishing features and progress.
Detailed description of the invention
The related details and working principle of the embodiments of the present invention and embodiment are described with reference to the accompanying drawing.
Fig. 1 is the utility model front side structure schematic diagram.
Fig. 2 is schematic cross-sectional view in Fig. 1.
Fig. 3 is the utility model rear structure schematic diagram.
Specific embodiment
Referring to attached drawing, screen printing mechanism in present embodiment, includes screen frame device and screeding device, screen frame device packet
Screen frame 1 has been included, screen printing forme 2(, that is, screen cloth is set in screen frame 1), screeding device includes scraper plate 3, and scraper plate 3 is arranged in screen printing forme 2
Top lifting, scraper plate 3 decline when cooperation pressure screen printing forme 2.
The screen printing mechanism further includes having stock to walk to expect device, and stock walks to expect that device includes to hold stock to walk
The collet 4 of material, collet 4 are located at the lower section of screen printing forme 2.When printing, the decline of scraper plate 3 and scraper plate 3 and collet 4 are with respect to screen frame 1
Advanced in unison, scraper plate 3 and collet 4 cooperate the screen printing forme 2 in screen frame to print, and scraper plate 3 declines the screen printing forme 2 that can press, silk
Stock below wire mark version is held by collet 4, and the screen printing forme and substrate contacts of pressurized zone, scraper plate and collet are with respect to net
Ink on screen printing forme can be printed to the stock of the contact of lower section by frame advanced in unison during scraper plate opposite advance
On, stock 0 can advance under the traction of the traction device of printing equipment always, it is ensured that continuously conveying materials printing.It is completed for printing
Afterwards, the rising of scraper plate 3 and the opposite retrogressing of screen frame 2 of scraper plate 3 and collet 4, screen printing forme 2, which is no longer pressurized, after scraper plate 3 rises restores former
Shape, screen printing forme 2 will not be contacted with the stock 0 on collet 4, and stock 0 is still under the traction of the traction device of printing equipment
Advance, then starts next printing.
Scraper plate screen frame advanced in unison opposite with collet and scraper plate and collet are retreated with respect to screen frame;It can be scraper plate and bottom
Support movement, screen frame are motionless;Being also possible to scraper plate, motionless, screen frame acts with collet;It can also be that scraper plate and collet act, screen frame
Movement.In the present embodiment, when printing, 4 advanced in unison of scraper plate 3 and collet, screen frame 1 retracts;After being completed for printing, scraper plate 3 and collet 4
It retreats, screen frame 2 moves forward, and print speed printing speed is faster.Further improvement is, when printing, scraper plate 3 and the horizontal synchronization to the left of collet 4 are advanced,
Screen frame 1 drives screen printing forme is tiltedly upper to the right to retract;After being completed for printing, horizontal retrogressing, screen frame 1 drive silk to the right for scraper plate 3 and collet 4
Wire mark version moves forward obliquely downward to the left;Screen printing forme can also be obliquely installed, the left side is low, the right is high is obliquely installed, quick print
When, it avoids scraper plate from horizontally advancing to the left and scrapes the ink in screen printing forme.
In the present embodiment, collet 4 is held using rotation bottom roller, stock 0 by rotation bottom roller, avoids stock by tow out
Stretching and scratch during material.
Collet 4 is connected on bracket 5, and screeding device is connected on bracket 5, and bracket 5 moves forward and backward on the rack, scraper plate
With collet advanced in unison and retrogressing.By moving forward and backward for bracket, the advanced in unison and retrogressing of collet and screeding device are realized.
Bracket 5 has the first support plate for collet installation and the second support plate for screeding device installation, first support and second support
Plate is connected by gusset piece 51, and second support version is gone up and down on gusset piece 51 by the drive of cylinder 52 in the present embodiment.
The screen printing mechanism further includes having transmission device, drives scraper plate, collet and/or screen frame mobile by transmission device.
In the present embodiment, transmission device includes driving motor 7, driving wheel and transmission belt 8, and driving motor is driven by driving wheel and is driven
Band 8 moves back and forth, and screen frame, scraper plate and collet and transmission belt are sequentially connected.Screen frame, scraper plate and collet one are driven by transmission belt 8
Play movement.Transmission belt respectively arranges one in front side and rear side, and transmission belt uses synchronous belt, and the transmission belt of front side and rear side passes through same
Axis transmission connection is walked, driving motor 7 uses servo motor, ring-shaped synchronous belt 21, the synchronous belt of front side can also be arranged in rear side
It is sequentially connected with the mounting base of screen frame, the synchronous belt of front side is also sequentially connected with bracket, and synchronous belt and the bracket transmission of rear side connect
It connects, the synchronous belt and ring-shaped synchronous belt of rear side are sequentially connected, and ring-shaped synchronous belt and bracket are sequentially connected
Screen frame 1, which is arranged on the first guide rail 6, to move forward and retracts, and the first guide rail 6 is arranged on the rack, scraper plate and collet setting
It moves forward and backward on the second guide rail 13.In the present embodiment, the second guide rail is horizontally disposed, the second guide rail setting at least one;The
One guide rail is obliquely installed, the first guide rail setting at least one.
Stock walks to expect that device further includes having the punishment in advance deflector roll 9 for being fixed on the rack rotation, and punishment in advance deflector roll 9 is for stock 0
It lays, that lays stock walks material tube diameter.The screen printing mechanism further includes having stock to walk material storage regulating device, the printing
It includes stationary guide roller 10 and moveable idler 11A, 11B that object, which walks material storage regulating device, stationary guide roller 10 be fixed on the rack into
Two groups of left and right is arranged in row rotation, moveable idler 11A, 11B in sliding seat 12, and it is movable that sliding seat 12 is driven back and forth by power source.
Power source includes servo motor, and left and right moves back and forth servo motor transmission sliding seat 12 on the rack, and third is arranged in rack
Guide rail 15 is mobile for sliding seat.Stock is wound around on stationary guide roller and moveable idler, by adjusting sliding seat position come into
Reach the two purposes of chromatography before and after row storing and adjustment stock, so as to continous way printing equipment (such as flexo unit) and
Intermittent printing equipment (such as offset printing unit) series connection.
The rack of screen printing mechanism is divided into restocking and undercarriage, screen frame device, screeding device, collet and cooling device,
Solidification equipment is arranged in restocking, and stock is walked material storage regulating device and is arranged on undercarriage, is above erected on undercarriage laterally
Adjustment setting drives screw rod that restocking lateral position on undercarriage is driven to change, to adjust printing position essence by servo motor
Degree.