CN106626734B - It is a kind of that consent and two-sided anti-welding method for printing screen are carried out using screen process press - Google Patents

It is a kind of that consent and two-sided anti-welding method for printing screen are carried out using screen process press Download PDF

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Publication number
CN106626734B
CN106626734B CN201510726785.5A CN201510726785A CN106626734B CN 106626734 B CN106626734 B CN 106626734B CN 201510726785 A CN201510726785 A CN 201510726785A CN 106626734 B CN106626734 B CN 106626734B
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stock
screen printer
printing
screen
camera shooting
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CN106626734A (en
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李集登
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SHENZHEN DENGFENG SCREENPRINTING MACHINERY CO Ltd
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SHENZHEN DENGFENG SCREENPRINTING MACHINERY CO Ltd
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Abstract

Consent and two-sided anti-welding method for printing screen are carried out using screen process press the present invention relates to a kind of.Wherein, screen process press includes the first screen printer of rack and the rack-mounted consent printing for realizing stock, for realizing the second screen printer of one face anti-welding printing of stock, and for the third screen printer of stock another side anti-welding printing;It is connected between first screen printer and second screen printer by the first panel turnover machine;It is connected between second screen printer and third screen printer by the second panel turnover machine;Wherein, first screen printer, the second screen printer and third screen printer include: the printing mechanism for camera shooting positioning mechanism, execution printing operation to stock shooting and automatic aligning, and the transshipment acitivity transported between the camera shooting positioning mechanism and the printing mechanism for realizing stock.The high production efficiency of printing machine of the invention, power consumption is small, and overall cost is lower, can avoid the big problem of product appearance color difference.

Description

It is a kind of that consent and two-sided anti-welding method for printing screen are carried out using screen process press
Technical field
The present invention relates to screen printing technique fields, more specifically to a kind of consent and two-sided anti-welding screen printing Brush machine and method for printing screen.
Background technique
With the development of society, the production of automation is the inexorable trend of all trades and professions development.And at present PCB industry from Dynamic metaplasia production is mainly limited on the silk-screen printing technique of pcb board.Pcb board product higher for quality requirements, screen printing A procedure in dataller's skill is to carry out consent using 1 screen printer first, then again using 2 screen printers respectively to pcb board Two sides carries out anti-welding printing, or carries out two-sided anti-welding printing to pcb board in such a way that 1 screen printer is by artificial turnover panel. Currently, usually operate 3 automanual screen printers respectively by 3 people in industry realize pcb board consent and two-sided anti-welding print Brush;Wherein, 1 people implements the semi-automatic printing operation of jack process, and other 2 people then implements the semi-automatic print of two-sided solder resistance process Brush operation.This kind of production method is automanual production, and production efficiency is low, the large labor intensity of operator, the production of product Operator can be depended entirely on, and has artificial participation in operating process, influence the quality of product can by a degree of.Separately Outside, power consumption is big, and the speed of product is low out.Even if certain customers realize that this is wanted using full-automatic production technology It asks, is also to realize the requirement of this technique using consent and double-face spray painting method and corresponding equipment, double-face spray painting equipment Purchase cost is high, and the use cost of ink is very high, and cleans that the shared time is longer, product appearance color difference is larger, influences to produce The exterior quality of product.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the drawbacks of the prior art, a kind of consent and two-sided anti-is provided The screen process press and method for printing screen of weldering, the high production efficiency of this kind of printing machine can effectively reduce the work of labour personnel Intensity, power consumption is small, and its overall cost is lower, and can avoid the big problem of product appearance color difference.
The technical solution adopted by the present invention to solve the technical problems is: providing a kind of consent and two-sided anti-welding screen printing Brush machine, including rack and the rack-mounted consent for realizing stock print the first screen printer, for realizing Second screen printer of the one face anti-welding printing of stock, and the third silk-screen for the stock another side anti-welding printing Machine;It is connected between first screen printer and second screen printer by the first panel turnover machine;Second screen printer and described It is connected between third screen printer by the second panel turnover machine;
Wherein, the first screen printer, the second screen printer and third screen printer include: for stock shooting and automatic right The camera shooting positioning mechanism of position, the printing mechanism for executing printing operation, and for realizing stock in the camera shooting positioning mechanism The transshipment acitivity transported between the printing mechanism.
In one embodiment, the printing mechanism includes: wire mark workbench, is fixed in the rack;Print lifting group Part is fixed in the rack, is equipped with web plate thereon;Frame unit is mounted on described with being reciprocally moveable along the vertical direction It prints on lifting assembly;Print engine head component is mounted in the frame unit with being reciprocally moveable in the horizontal direction;And net Plate automatic aligning component is mounted between the printing lifting assembly and the rack, for realizing automatic aligning to web plate.
In one embodiment, second screen printer and the third screen printer further include from the receiver for moving specification Structure;Wherein, the material receiving mechanism is arranged in the camera shooting positioning mechanism, and the relatively described rack is removable;The receiver Structure includes multiple slidable midfoot support elements and technique edges support plate;
Second screen printer and the third screen printer further include at least one ink wiping mechanism;At least one described wiping Mechanism includes wiping driving assembly, and the wiping head being drivingly connected with the wiping driving assembly;The wiping head is along vertical Direction and horizontal direction are removable.
In one embodiment, bottom plate and surrounding are installed on the wire mark workbench and transshipment acitivity of first screen printer Coaming plate is installed;Emptiness avoiding hole of the size greater than the size in the hole for executing consent printing needed for stock is offered on the bottom plate;
It is equipped with and encloses around the wire mark workbench and transshipment acitivity of second screen printer and the third screen printer Plate and centre are equipped with nail bed.
In one embodiment, the web plate automatic aligning component includes contraposition pedestal, and is mounted on the contraposition pedestal On active to level controller and passively to level controller;
Wherein, the active to level controller and it is described include passively controller pedestal to level controller, along first party To the first slide unit being slidably mounted on the controller pedestal, and it is slidably attached at described in a second direction The second slide unit on one slide unit;
The active is to the driving motor that level controller further includes for driving the first slide unit sliding.
In one embodiment, the camera shooting positioning mechanism includes camera assembly, camera shooting position automatic aligning component, and installation It is described camera shooting position automatic aligning component on for stock carrying to bit platform;
First screen printer further includes feeding mechanism and feeding limit mechanism;Wherein, the feeding mechanism is fixed on In rack;The feeding limit mechanism is mounted on described on bit platform and described by camera shooting position automatic aligning component Feeding limit mechanism is connect with the feeding mechanism.
In one embodiment, the transshipment acitivity includes transhipment substrate, transhipment ontology and stationary fixture;Wherein, described Transport substrate slidable connection on the rack;The transhipment ontology is mounted on the transhipment substrate, and opposite along the vertical direction The transhipment substrate is removable;
The stationary fixture include collet, with the collet be sequentially connected to drive the collet back and forth to move along the vertical direction Dynamic collet telescopic component, setting element and the setting element is sequentially connected to drive the setting element along the vertical direction The setting element lifting assembly of reciprocating movement, and driven respectively with the collet telescopic component and the setting element lifting assembly The clamping driving assembly of dynamic connection.
In one embodiment, first panel turnover machine and second panel turnover machine include turnover bracket, turnover mechanism, From move specification mechanism, gripping body and overturning walking mechanism;Wherein, the turnover bracket is mounted on the rack;Institute Turnover mechanism is stated to be slidably mounted on the turnover bracket by the overturning walking mechanism;It is described to move the installation of specification mechanism certainly On the turnover mechanism, and the gripping body be installed on it is described from moving in specification mechanism;The gripping body includes can Relatively close or separate the first clamping portion and the second clamping portion.
In order to solve the technical problem, the present invention also provides consent and two-sided anti-welding method for printing screen, aforementioned is used Screen process press described in one executes, comprising steps of
S1, tune machine is carried out to the first screen printer, the second screen printer and third screen printer;
S2, stock charging, the first screen printer realize camera shooting contraposition to stock by camera shooting positioning mechanism;
S3, stock are transported on the wire mark workbench of the first screen printer, and by the printing mechanism of the first screen printer into The printing of row consent;
S4, the first panel turnover machine clamp the stock printed, and stock overturning is placed on to the splicing of the second screen printer In mechanism;
S5, the second screen printer realize camera shooting contraposition to stock by camera shooting positioning mechanism;
S6, stock are transported on the wire mark workbench of the second screen printer, and by the printing mechanism of the second screen printer into The anti-welding printing in one face of row stock;
S7, the second panel turnover machine clamp the stock printed, and stock overturning is placed on to the splicing of third screen printer In mechanism;
S8, third screen printer realize camera shooting contraposition to stock by camera shooting positioning mechanism;
S9, stock are transported on the wire mark workbench of third screen printer, and by the printing mechanism of third screen printer into The anti-welding printing of row stock another side.
In one embodiment, the step S11 comprising steps of
S11, one group of target image is set on the substrate, and stock is clamped in on bit platform;
S12, camera shoot stock, and obtain the location information of one group of target image on stock, will The location information stores in a control unit as fiducial reference position information;
S13, the stock after acquisition location information in step S12 is transported on wire mark workbench;
S14, stock is printed using the web plate of first successive step, and stock is transported back to bit platform;
S15, camera shoot stock, and obtain the printing position information of pattern, calculate printing position information With the relative standard deviation values of fiducial reference position information, controls web plate and automatic aligning occurs, so that web plate target image and stock On target image registration in default accuracy rating.
Implement consent of the invention and two-sided anti-welding screen process press and method for printing screen, has the advantages that Its by the automatic connecting of three screen printers and two tippers realize pcb board consent and two-sided anti-welding printing, and The front end of the screen process press, which can carry out docking with automatic assembly line, realizes automatic feed, and the rear end of screen process press is provided with Discharging mechanism can carry out docking with the automated production equipment of subsequent technique and realize self-emptying, so that the transfer matic of PCB production Energy line success, therefore can realize " three machines printing, primary to toast ", the production capacity of raising PCB producer and the quality of product and produce The speed of product reduces the daily operating cost of PCB producer.The conversion of its stock specification is convenient, and wire mark non-cutting time is short, raw Produce high-efficient, speed is fast, can effectively reduce the working strength of labour personnel.In addition, its device structure is compact, occupied area is small, High degree of automation, power consumption is small, and can avoid the big problem of product appearance color difference.Human intervention is not necessarily in normal productive process Adjustment, it is easy to operate, therefore one or more production line can be responsible in a people during normal production, the quality of product is improved, Reduce number of devices, reduces ink consumption amount and other costs.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the structural schematic diagram of the consent and two-sided anti-welding screen process press in one embodiment of the invention;
Fig. 2 is the partial structure diagram of the screen process press in Fig. 1;
Fig. 3 is the structural schematic diagram of the transshipment acitivity in the first screen printer in Fig. 1;
Fig. 4 is the partial enlargement diagram of part A in Fig. 3;
Fig. 5 is the structural schematic diagram of the stationary fixture in Fig. 3;
Fig. 6 is the structural schematic diagram of the web plate automatic aligning component in the first screen printer in Fig. 1;
Fig. 7 is structural schematic diagram of the active in Fig. 6 to level controller;
Fig. 8 is the passive structural schematic diagram to level controller in Fig. 6;
Fig. 9 is the partial structure diagram of the tipper in Fig. 1;
Figure 10 is the partial enlargement diagram at the B in Fig. 9;
Figure 11 is the flow chart of the consent and two-sided anti-welding method for printing screen in one embodiment of the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
Fig. 1-2 shows consent and two-sided anti-welding screen process press in one embodiment of the invention.As shown in Figs. 1-2, The screen process press includes control unit (not shown), rack 1, and three screen printers (first be mounted in the rack 1 Print machine 2, the second screen printer 5 and third screen printer 7) He Liangtai panel turnover machine (the first panel turnover machine 4 and the second panel turnover machine 6).Wherein, One screen printer 2, the first panel turnover machine 4, the second screen printer 5, the second panel turnover machine 6, third screen printer 7 are sequentially connected with.
Specifically, the first screen printer 2 prints for realizing the consent of stock (not shown).First panel turnover machine 4 is for pressing from both sides The stock for taking the first screen printer 2 to print is placed on the second screen printer 5 after overturning, and is held by the realization of the second screen printer 5 Print the anti-welding printing of object one side.Then, the second panel turnover machine 6 clamps the good stock of a face anti-welding printing, and the is placed on after overturning On three screen printers 7, and pass through the anti-welding printing of the realization stock another side of third screen printer 7.What third screen printer 7 printed holds Print object will be automatically transported in the next process of production line by discharging mechanism 76.
Specifically, in the present embodiment, referring to Fig. 1-2, first screen printer 2 generally include camera shooting positioning mechanism 21, Printing mechanism 23, and the transshipment acitivity transported between camera shooting positioning mechanism 21 and printing mechanism 23 for realizing stock 22。
In the present embodiment, camera shooting positioning mechanism 21 includes camera assembly 211, images position automatic aligning component 212, and Be mounted on the camera shooting position automatic aligning component 212 to bit platform (not labeled).Wherein, camera assembly 211 includes being fixed on Camera shooting mounting rack (not labeled) in rack 1 and the camera (not shown) being mounted in the rack.Wherein, camera is used for The target image on pcb board is captured, and then assists the automatic aligning of the camera shooting position automatic aligning component 212.In the present embodiment, The camera is preferably CCD camera.Rack 1 is further installed at by the camera shooting position automatic aligning component 212 to bit platform On, so that automatic aligning can be realized to the stock on bit platform by being carried on this.Wherein, the camera shooting position automatic aligning component The structure of 212 specific structure and web plate automatic aligning component 235 hereinafter is substantially the same.
Fig. 3-5 shows the specific structure of the transshipment acitivity 22 in one embodiment of the invention.As in Figure 3-5, the transhipment Mechanism 22 specifically includes transhipment substrate 221, transhipment ontology 222 and stationary fixture 223.Wherein, the transhipment substrate 221 is for example logical Cross sliding rail and sliding block cooperation mode slidable connection in rack 1, thus can drive entire transshipment acitivity 22 can in rack 1 Sliding transports stock between camera shooting positioning mechanism 21 and printing mechanism 23.Such as in the embodiment shown in fig. 3, The settable sliding rail 11 in rack 1, and make the sliding block that setting cooperates with the sliding rail 11 on transhipment substrate 221 to realize.Transhipment Ontology 222 is mounted on the transhipment substrate 221, and removable with respect to the transhipment substrate 221 along the vertical direction.Therefore, it is needing When supporting stock, transhipment ontology 222 can be risen along the vertical direction;And when needing to be detached from stock, it can will transport ontology 222 decline along the vertical direction.
Stationary fixture 223 specifically includes collet telescopic component 223a, liftable collet 223b, setting element 223c, determines Bit unit lifting assembly 223d and clamping driving assembly 223e.Wherein, the collet telescopic component 223a and collet 223b is driven Connection, for driving collet 223b to move back and forth along the vertical direction, thus makes collet 223b be telescopically disposed in transhipment ontology In 222.Wherein, collet 223b can be hook.In addition, collet 223b can also for example be led by horizontal power cylinder and level The movement of horizontal direction occurs relative to transhipment ontology 222 for rail.Therefore, by adjusting the horizontal position and upright position of collet 223b Stock can be clamped on the transshipment acitivity 22.
Setting element 223c is arranged in the transhipment ontology 222, and is sequentially connected with setting element lifting assembly 223d, by This can be moved back and forth along the vertical direction under the drive of setting element lifting assembly 223d.In addition, setting element 223c can also lead to Cross the reciprocating movement that horizontal direction occurs for the opposite transhipment ontology 222 of horizontal guide rail.Settable two positioning member in the present embodiment Thus part 223c is suitable for location hole apart from different different rule by adjusting the distance between two setting element 223c Printing positioning (but the product of same specifications and models, the precision model that the distance between location hole error allows in product of panel In enclosing, and location hole is consistent relative to the relative position of target pattern), and make setting element 223c can be smoothly inserted into or Person exit in the consistent location hole in target image relative position.Wherein, clamping driving assembly 223e can be flexible with collet respectively Component 223a and setting element lifting assembly 223d respectively drive connection.
Further as shown in Figs. 1-2, printing mechanism 23 then includes wire mark workbench 231, printing lifting assembly 232, screen frame Component 233 and print engine head component 234.Wherein, wire mark workbench 231 is fixed in rack 1.The installation of web plate (not shown) On the printing lifting assembly 232, and prints lifting assembly 232 and machine is further fixed on by web plate automatic aligning component 235 On frame 1, the automatic aligning of web plate thus can be realized by web plate automatic aligning component 235, guarantee printed patterns with respect to stock Consistency, while also can guarantee printing precision.Frame unit 233 is mounted on printing and rises with being reciprocally moveable along the vertical direction It comes down to a lower group on part 232, and print engine head component 234 is mounted on the frame unit 233 with being further reciprocally moveable in the horizontal direction On.Therefore, print engine head component 234 can occur in the horizontal direction for example, by the driving of motor relative to the frame unit 233 Move back and forth, and by means of frame unit 233 on printing lifting assembly 232 reciprocating movement along the vertical direction and synchronize hair Raw lifting.
Wherein, print engine head component 234 specifically includes print engine head (not shown) and printing machine frame (not in the present embodiment Label).Print engine head can move back and forth along the vertical direction with respect to the printing machine frame, thus can realize relevant silk-screen printing (example As being in the present embodiment consent silk-screen printing).
In the present embodiment, mentioned " installing with being reciprocally moveable " can be for example, by can be through sliding rail and sliding block Between the realization that is slidably matched, or realized such as by straight-line motion mechanism feed screw nut or rack-and-pinion.
In the present embodiment, fool proof positioning pin is also provided on wire mark workbench 231.
In the present embodiment, referring to shown in Fig. 6-8, which specifically includes contraposition pedestal 235a And active on contraposition pedestal 235a is mounted on to level controller 235b and passively to level controller 235c.Wherein, at this There are three actively to level controller 235b and one passively to level controller 235c, four controllers are set respectively for setting in embodiment It sets at the corner location of contraposition pedestal 235a, and level controller is arranged in parallel along equidirectional for two actives, for controlling The web plate movement and contraposition on first direction (not shown) in the horizontal plane;And another active to level controller then with respect to before Level controller is arranged along 90 ° of directions for two actives, for controlling the web plate second party vertical with first direction in the horizontal plane Movement and contraposition on (not shown).
It in the present embodiment, include actively controller pedestal 253b-1, the first slide unit to level controller 235b referring to Fig. 7 235b-2, the second slide unit 235b-3 and driving motor 235b-4.Wherein, in the present embodiment, the first slide unit 235b-2 is along One direction is slidably attached on controller pedestal 253b-1, and the second slide unit 235b-3 can further be slided in a second direction It is connected on the first slide unit 235b-2 dynamicly;Driving motor 235b-4 is for example connected by feed screw nut and the first slide unit 235b-2 It connects.Therefore, driving motor 235b-4 can drive the first slide unit 235b-2 along first direction relative controller pedestal by screw rod 235b-1 sliding, and the second slide unit 235b-3 is slided with respect to the first slide unit 235b-2 in a second direction.
In the present embodiment, referring to Fig. 8, passively to the structure of level controller 235c with actively to level controller 235b phase Seemingly, including controller pedestal 235c-1, the first slide unit 235c-2 and the second slide unit 235c-3, difference, which is only that, is not provided with Independent driving motor.
In the present embodiment, the feed end of first screen printer 2 is additionally provided with feeding mechanism 24.The feeding mechanism 24 is fixed It is roller type feeding mechanism, including multiple idler wheels in rack 1.In addition, charging may further be provided on to bit platform Position-limit mechanism 25.The feeding limit mechanism 25 is connected to the discharge end of feeding mechanism 24, for tentatively being limited to stock, Stock is set to be substantially at the entirely center to bit platform.Due to being provided with camera shooting position automatic aligning in contraposition mesa base Component 212, therefore being mounted on this can also be by means of the camera shooting position automatic aligning component to the feeding limit mechanism 25 on bit platform 212 and move it relative to rack 1, thus can make camera assembly in conjunction with control unit (not shown) to realize stock Automatic aligning in camera shooting position.
In this embodiment, it is preferred that the bottom plate 26 corresponding to product specification is installed on wire mark workbench 231, and And emptiness avoiding hole (not shown) is provided on bottom plate 26.Wherein, the size of emptiness avoiding hole, which is greater than needed for stock, executes consent printing Hole size, to ensure the effect of consent, and prevent ink contamination printing table, keep the cleaning of printing table.In addition, Preferably, coaming plate 27 is also equipped with around wire mark workbench 231, for being limited to stock, balance web plate by Thus power simultaneously protects web plate.Wherein, corresponding coaming plate (not shown) is also installed and is had at the both ends of transshipment acitivity 22 and kept away The bottom plate of emptying aperture.
The working principle of first screen printer 2 is introduced briefly below.
Tune machine is carried out firstly the need of to first screen printer 2.It adjusts machine process as follows:
1) stock (pcb board to be processed) is placed on feeding limit mechanism 25 first, passes through the charging position restrainer Structure 25 makes stock limit the center at this to bit platform.
2) then, adjusting camera assembly 221 makes camera that can capture one group of target image on stock, and by taking the photograph As the location information of shooting this group of target image of acquisition of head, which is stored as fiducial reference position information.
3) by correspond to the specification stock bottom plate (offering consent emptiness avoiding hole) be mounted on transshipment acitivity 22 and On wire mark workbench 231, and run to the transshipment acitivity 22 at camera shooting positioning mechanism 21 (below camera shooting mounting rack).It adjusts Coaming plate around whole transshipment acitivity 22 simultaneously fixes coaming plate;Stock is clamped using transshipment acitivity 22, and is transported to wire mark work Make on platform 231.
4) position of 231 surrounding coaming plate of wire mark workbench, and fixed coaming plate are adjusted according to the position of stock, it thus can be complete At the adjustment of coaming plate.
5) web plate is mounted on printing lifting assembly 232, and drops to web plate at printing position, manually first successive step net Position of the plate relative to stock makes pattern corresponding with target image on web plate visually see location error in about 1mm model In enclosing, and web plate is fixed.
6) ink is added and executes printing movement.Web plate is risen after being completed for printing, transshipment acitivity 22 continues to clamp at this time Stock returns directly to below camera shooting mounting rack.
7) it is shot again using camera, the pattern for obtaining screen printing is analyzed, and controller unit meter is utilized The relative standard deviation values of the printed patterns with the fiducial reference position information previously obtained are calculated, it is automatic then to issue instruction control web plate Contraposition component 235 controls web plate and moves, and the registration of the target image on web plate target image and stock is thus made to exist It is substantially completely overlapped in default accuracy rating with realizing.
After completing tune machine to the first screen printer 2 by above-mentioned seven steps, that is, the first screen printer 2 can be used and carry out normally Production.The protective film that artificially attaches on the substrate when the machine of tune is removed first before manufacture, then by the stock be placed on into Automatic feed is carried out in material mechanism 24.Stock is set to limit the centre bit at this to bit platform substantially by feeding limit mechanism 25 It sets, and is shot by camera, and automatic aligning is executed using camera shooting position automatic aligning component 212, guarantee that stock exists When printing in the consistency of relative position and transport process relative position consistency.It then will by transshipment acitivity 22 Stock through having aligned is transported on wire mark workbench 231, and web plate is declined and passes through the transshipment acitivity 22 and continues to support this Stock completes printing.After being completed for printing, web plate is risen, transshipment acitivity 22 unclamps the stock printed, and retracts To camera shooting mounting rack, feeding is carried out to next stock.Meanwhile another transshipment acitivity is moved at wire mark workbench 231, Clamp the stock that has printed and be transported to the going out in material position of the first screen printer 2, with execute it is next during automatic metaplasia It produces.
Fig. 1-2 further illustrates the structure of the first panel turnover machine 4 in one embodiment of the invention.Wherein, first turnover panel The both ends of machine 4 can be connected respectively to the first screen printer 2 and the second screen printer 5 by connector 3.Referring to Fig. 1-2, in conjunction with Fig. 9- 10, the first panel turnover machine 4 generally include turnover bracket 41, turnover mechanism 42, move certainly specification mechanism 43, gripping body 44 and Overturn walking mechanism 45.Wherein, turnover bracket 41 is mounted in rack 1, and turnover mechanism 42 passes through the overturning walking mechanism 45 It is slidably mounted on turnover bracket 41.It is mounted on turnover mechanism 42 from specification mechanism 43 is moved, and gripping body 44 into one Step is mounted on this from the side for moving specification mechanism 43.The gripping body 44 may include two gripping arm (not labeled), and each It is provided with the first clamping portion 441 and the second clamping portion 442 in gripping arm, passes through the first clamping portion of control 441 and the second clamping Portion 442 is relatively close to each other or separate and realize clamping or release of the gripping body 44 to stock.
It in the present embodiment, should be from specification mechanism 43 be moved for adjust automatically two clampings according to the specification of stock The distance between arm, in order to clamp stock.
The working principle of first panel turnover machine 4 is introduced briefly below.The stock after having carried out consent printing is being received, Moving specification mechanism 43 certainly at this time will make clamping limb bringing together and clamp stock.After stock clamping, tipper Structure 42 will clip stock and carry out the overturning of 180 degree, while overturning walking mechanism 45 and completing 180 degree overturning in the turnover mechanism 42 The same time in by the stock be transported to the second screen printer 5 from the material receiving mechanism 54 for moving specification, and by stock It unclamps.Therefore, the stock for having been carried out consent printing can be carried out by the overturning of 180 degree using first panel turnover machine 4 and turned Fortune.
Fig. 1-2 shows further the structure of the second screen printer 5.Wherein, the basic structure of second screen printer 5 and first The structure of screen printer is substantially the same, including camera shooting positioning mechanism 51, transshipment acitivity 52 and printing mechanism 53.Wherein, the camera shooting Positioning mechanism 51 includes camera assembly and camera shooting position automatic aligning component.And printing mechanism 53 then includes wire mark workbench, printing Lifting assembly, frame unit, print engine head component and wire mark automatic aligning component.Itself the difference lies in that the second screen printer 5 simultaneously Not set feeding mechanism 24 and feeding limit mechanism 25, but the second screen printer 5 is additionally provided with and is used to support from the first panel turnover machine 4 The material receiving mechanism 54 for moving specification certainly of the stock of transhipment, and for blowing net bottom ink off to keep workbench clean At least one ink wiping mechanism 55.
Wherein, which is mounted on wire mark workbench, including wiping head (not shown) and wiping driving group Part (not shown).Wherein, wiping head and the wiping driving assembly are drivingly connected, and can be real under the drive of the wiping driving assembly Lifting now along the vertical direction and movement in the horizontal direction.Wherein, lifting along the vertical direction can by cylinder driving come It realizes, and walking in the horizontal direction can be oriented to realize by motor driven linear guide.In the present embodiment, control unit The frequency of net bottom wiping movement can be set, such as control executes a net bottom wiping movement after printing N (N >=1) is secondary, thus It can keep the cleaning of wire mark workbench.Wherein, the specific value of N can be set according to actual needs.
It, can be according to the rule of stock from the material receiving mechanism 54 of specification is moved between the first panel turnover machine 2 and transshipment acitivity Lattice, which are realized, moves specification certainly to be used to support stock, and realizes automatic aligning by camera shooting positioning mechanism after support.Wherein, The material receiving mechanism 54 setting, and can the opposite generation horizontal direction of rack 1 and vertical direction on camera shooting position automatic aligning component It is mobile.Material receiving mechanism includes multiple slidable midfoot support elements (being not shown, such as supporting pin etc.) and technique edges support Plate.Wherein, technique edges support plate can be adjusted to corresponding position and fixation according to stock specification, be used to support around stock Technique edges.Midfoot support element is freely slidable at the position for allowing to be supported on stock, for carrying out to stock Support.When using this material receiving mechanism, effective printing surface of stock will not be damaged during support, it is ensured that print after support The quality of brush product.
In the present embodiment, for the mode of printing of anti-welding printing, the both ends of transshipment acitivity are equipped with coaming plate, and Nail bed is installed among transshipment acitivity.In addition, equally being enclosed equipped with coaming plate around corresponding wire mark workbench, and in wire mark Nail bed is provided in the middle part of workbench.It by this structure, can make to remain with gap between stock and bottom plate, prevent from printing Ink contamination printing table in journey, and it has been effectively protected effective printing surface that previous process has printed ink.
The tune machine mode of second screen printer 5 is generally identical with the first screen printer 2.Its difference is, at the beginning, The position for needing to adjust midfoot support element according to the specification of stock, support component adjustment, which is placed into stock, to allow to prop up The position of support, and technique edges support plate is adjusted to corresponding position, to wait the first panel turnover machine 4 that stock is turned to this On material receiving mechanism 54.Therefore, at work, stock is transported on material receiving mechanism 54 by the first panel turnover machine 4, then passes through camera shooting Positioning mechanism realizes the camera shooting contraposition of product, is transported on wire mark workbench after the completion of contraposition by transshipment acitivity, to realize this The anti-welding printing of stock.
Second panel turnover machine 6 is identical with the structure of the first panel turnover machine 4, no longer describes herein.
Fig. 1-2 further illustrates the structure of third screen printer 7.The wherein structure of third screen printer 7 and the second screen printer 5 Structure be substantially the same, include camera shooting positioning mechanism 71, transshipment acitivity 72 and printing mechanism 73, material receiving mechanism 74 and scrape Black mechanism 75.In addition, third screen printer 7 is also additionally provided with from the discharging mechanism 76 for moving specification.Wherein, the discharging mechanism 76 It is connected to going out in material position for third screen printer 7, for realizing the self-emptying of stock, and is realized certainly with the equipment of subsequent processing Dynamicization docking.The discharging mechanism 76 is preferably roller type discharging mechanism.
It is introduced below in conjunction with attached drawing 11 and consent and two-sided anti-welding silk-screen printing is carried out to product using the screen process press Process and method.Wherein, the method for printing screen specifically includes the following steps:
S1, tune machine is carried out to the first screen printer 2, the second screen printer 5 and third screen printer 7;
S2, stock charging, the first screen printer 2 realize camera shooting contraposition to stock by camera shooting positioning mechanism;
S3, stock are transported on the wire mark workbench of the first screen printer 2, and pass through the printing mechanism of the first screen printer 2 Carry out consent printing;
S4, the first panel turnover machine 4 clamp the stock printed, and stock overturning is placed on connecing for the second screen printer 5 Expect in mechanism;
S5, the second screen printer 5 realize camera shooting contraposition to stock by camera shooting positioning mechanism;
S6, stock are transported on 5 wire mark workbench of the second screen printer, and are carried out by the printing mechanism of the second screen printer The anti-welding printing in one face of stock;
S7, the second panel turnover machine 6 clamp the stock printed, and stock overturning is placed on connecing for third screen printer 7 Expect in mechanism;
S8, third screen printer 7 realize camera shooting contraposition to stock by camera shooting positioning mechanism;
S9, stock are transported on 7 wire mark workbench of third screen printer, and by the printing mechanism of third screen printer 7 into The anti-welding printing of row stock another side.
Wherein, in step sl, each tune machine step can be divided into step in detail below again:
S11, one group of target image is set on the substrate, and stock is clamped in on bit platform;
S12, camera shoot stock, and obtain the location information of one group of target image on stock, will The location information stores in a control unit as fiducial reference position information;
S13, the stock after acquisition location information in step S12 is transported on wire mark workbench;
S14, stock is printed using the web plate of first successive step, and stock is transported back to bit platform;
S15, camera shoot stock, and obtain the printing position information of pattern, calculate printing position information With the relative standard deviation values of fiducial reference position information, controls web plate and automatic aligning occurs, so that web plate target image and stock On target image registration in default accuracy rating.
Wherein, in step s 11, for the first screen printer 2, stock is clamped in contraposition by feeding limit mechanism 27 and puts down On platform;And for the second screen printer 5 and third screen printer 7, stock then passes through material receiving mechanism and is clamped on wire mark workbench.
In the above-described embodiments, three screen printers have been all made of Double tabletop automatic aligning (i.e. camera shooting position automatic aligning and print Brush the web plate automatic aligning of position).However, web plate can also be using the side manually adjusted according to other embodiments of the invention Formula realizes contraposition, and the precision of this method is relatively relatively low and required adjusting machine time is longer.
Using consent provided by the invention and two-sided anti-welding screen process press and method for printing screen, pass through three silks The automatic connecting of print machine and two tippers realize pcb board consent and two-sided anti-welding printing, and the screen process press Front end can carry out docking with automatic assembly line and realize automatic feed, and the rear end of screen process press is provided with discharging mechanism, can Dock with the automated production equipment of subsequent technique and realizes self-emptying, the transfer matic line success that PCB is produced, Therefore it can realize " three machines printing, primary to toast ", improve the production capacity of PCB producer and the quality of product and the out speed of product, drop The low daily operating cost of PCB producer.The conversion of its stock specification is convenient, and wire mark non-cutting time is short, high production efficiency, speed Degree is fast, can effectively reduce the working strength of labour personnel.In addition, its device structure is compact, occupied area is relatively small, automation Degree is high, and power consumption is small, and can avoid the big problem of product appearance color difference.Human intervention tune is not necessarily in normal productive process It is whole, it is easy to operate, therefore one or more production line can be responsible in a people during normal production, the quality of product is improved, is subtracted Lack number of devices, reduces ink consumption amount and other costs.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much Form, such as automatic aligning component only is set in camera shooting position, and web plate and production are realized using screen frame micro-adjusting mechanism in printing position The chromatography of product adjusts contraposition;Within these are all belonged to the scope of protection of the present invention.

Claims (2)

1. a kind of carry out consent and two-sided anti-welding method for printing screen using screen process press, wherein the screen process press packet Including rack and the first screen printer of the rack-mounted consent printing for realizing stock hold for realizing described Print the second screen printer of one face anti-welding printing of object, and the third screen printer for the stock another side anti-welding printing;Institute It states and is connected between the first screen printer and second screen printer by the first panel turnover machine;Second screen printer and the third silk It is connected between print machine by the second panel turnover machine;First screen printer, the second screen printer and third screen printer include: for pair Stock shooting and the camera shooting positioning mechanism of automatic aligning, the printing mechanism for executing printing operation, and for realizing stock The transshipment acitivity transported between the camera shooting positioning mechanism and the printing mechanism;It is characterized in that, the silk-screen printing side Method includes the following steps:
S1, tune machine is carried out to the first screen printer, the second screen printer and third screen printer;
S2, stock charging, the first screen printer realize camera shooting contraposition to stock by camera shooting positioning mechanism;
S3, stock are transported on the wire mark workbench of the first screen printer, and are filled in by the printing mechanism of the first screen printer Hole printing;
S4, the first panel turnover machine clamp the stock printed, and stock overturning is placed on to the material receiving mechanism of the second screen printer On;
S5, the second screen printer realize camera shooting contraposition to stock by camera shooting positioning mechanism;
S6, stock are transported on the wire mark workbench of the second screen printer, and are held by the printing mechanism of the second screen printer Print the anti-welding printing in one face of object;
S7, the second panel turnover machine clamp the stock printed, and stock overturning is placed on to the material receiving mechanism of third screen printer On;
S8, third screen printer realize camera shooting contraposition to stock by camera shooting positioning mechanism;
S9, stock are transported on the wire mark workbench of third screen printer, and are held by the printing mechanism of third screen printer Print the anti-welding printing of object another side.
2. according to claim 1 carry out consent and two-sided anti-welding method for printing screen using screen process press, special Sign is, the step S1 comprising steps of
S11, one group of target image is set on the substrate, and stock is clamped in on bit platform;
S12, camera shoot stock, and obtain the location information of one group of target image on stock, by the position Confidence breath stores in a control unit as fiducial reference position information;
S13, the stock after acquisition location information in step S12 is transported on wire mark workbench;
S14, stock is printed using the web plate of first successive step, and stock is transported back to bit platform;
S15, camera shoot stock, and obtain the printing position information of pattern, calculate printing position information and base Automatic aligning occurs for the relative standard deviation values of quasi- reference position information, control web plate, so that on web plate target image and stock The registration of target image is in default accuracy rating.
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CN108112174A (en) * 2018-02-01 2018-06-01 江西景旺精密电路有限公司 A kind of automatic consent of PCB and printing process and system
CN112437541B (en) * 2020-11-04 2022-08-23 江西旭昇电子有限公司 Manufacturing method of nail bed plate of printed circuit board anti-welding single-table-board full-automatic production line
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