CN102481779A - Cleaning device for an apparatus for silk-screen printing on a print support - Google Patents
Cleaning device for an apparatus for silk-screen printing on a print support Download PDFInfo
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- CN102481779A CN102481779A CN2010800395561A CN201080039556A CN102481779A CN 102481779 A CN102481779 A CN 102481779A CN 2010800395561 A CN2010800395561 A CN 2010800395561A CN 201080039556 A CN201080039556 A CN 201080039556A CN 102481779 A CN102481779 A CN 102481779A
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- pressure roller
- printing
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- net
- cleaning device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F35/00—Cleaning arrangements or devices
- B41F35/003—Cleaning arrangements or devices for screen printers or parts thereof
- B41F35/005—Cleaning arrangements or devices for screen printers or parts thereof for flat screens
Abstract
A device for cleaning a silk-screen net (12) of an apparatus (100) for the silk-screen printing of one or more print tracks on substrates (150) by means of a print material, comprises a first shaft (20), a second shaft (22) and a strip (21) able to clean the net (12) and supported by the first shaft (20) and the second shaft (22). The first shaft (20) and the second shaft (22) determine a movement of rotation of the strip (21) along a determinate path, under the net (12), to remove the excess printing paste from the net (12). The strip (21) is made of a non-elastic fabric material. The device also comprises a pressure roller (24) of the rotary type, around part of which the strip (21) is supported. The pressure roller (24) is positioned along the path of the strip (21) between the first shaft (20) and the second shaft (22). The device also comprises a movement unit (28) to move the pressure roller (24) toward the net (12), to selectively take the strip (21) into contact with the net (12) with a desired pressure.
Description
Technical field
The present invention is relevant for a kind of cleaning device, and it is used for the member in the cleaning equipment, and this equipment is in order to one or more printed wire of printing on base material or printing support member.For instance, in a structure configuration, use silk-screen printing device to form printed wire, in order on base material, to form the conducting wire, these base materials are used to form a plurality of parts of electronics, photoelectricity or other similar assembly.
Background technology
Knownly use suitable printing paste on silicon-based wafer, to make the conducting wire, make the conducting wire on the silicon-based wafer especially for photoelectric cell (but being not limited only to this) with screen printing technique.
It is online that serigraphy utilizes brushing tool or blade with the pressure of confirming printing paste to be dispersed in suitable printing, and come suitably to cut this printing net according to the printed wire expectation layout that will make.
Because non-optimized distribution or the stiff and/or anomaly of generation printing paste part in the blade moving process or in the feed line operation; Make printing paste be easy to excessive distribution or formation accumulation in some zone; These situations can occur on the low surface of printing net, and cause press quality relatively poor.
Therefore, essential cleaned at regular intervals printing net, common use has removing devices such as suitable brushing tool, knife (knife) or scraper plate and carries out the mechanicalness cleaning printing side off the net, to remove the printing paste of accumulation.
For helping mechanical cleaning and making it more efficient, tackle stiff conductive paste, need strike off preceding or the process of striking off in, on removing device, apply selected vehicle substance, and volatile solvent normally.
Because of solvent can be transferred to printing paste from the printing net, be that solvent can cause to of low pollution part conductive paste out of the press so use the major defect of solvent, and cause relatively poor press quality.
In fact, carefully adjust solvent load howsoever, even provide and be used for the device of dry solvent, always some solvent can touch the printing paste that is used to print.
In addition, in order to distribute solvent, the corresponding control of the operating parameters of appropriate solvent container, pressurization distribution pipeline and control distribution pipeline need be provided.
A kind of cleaning device is described in known international application WO-A-2009/053782; This cleaning device disposes the rotation paper slip with adhesive layer; The lower surface of this adhesive layer meeting contact print net is with cleaning printing net, but not use is struck off and the clean technologies of solvent.Send into paper slip and utilize rewinding roller bearing (rewonding roller) to reclaim and the coiling paper slip from presenting roller bearing (feed roller); And between two roller bearings, scraper assembly is set, this scraper assembly makes this cleaning paper slip act on the lower surface of printing net with the contact pressure of confirming.
The objective of the invention is to realize a kind of cleaning device; It is used to utilize the equipment of printing material one or more printed wire of serigraphy on the printing gripper shoe; Excessive especially for the online removing of from serigraphy, using or pile up printing material; This cleaning device can be avoided because of the pollution that utilizes the solvent cleaned printing material to be caused, and is effectively simultaneously and can be simple and easy and the cleaning device of economic manufacturing.
The applicant invents, test and embodiment of the present invention, overcoming the shortcoming in current techniques field, and described in obtaining as indicated with other purpose and advantage.
Summary of the invention
The present invention and characteristic thereof are described in the independent claims, and dependent claims is described the situation of change of further feature of the present invention or main invention conception simultaneously.
According to above-mentioned purpose; Use cleaning device according to the present invention cleans the serigraphy net in the screen printing apparatus; And normally cleaning is printed the lower surface of net; This equipment can be printed the conducting wire with for example (without limitation) through using printing material one or more printed wire of serigraphy on base material on silicon-based wafer, be used to make photoelectric cell.
According to the present invention, this cleaning device comprises first axostylus axostyle, second axostylus axostyle and silver, and this silver can clean the printing net, and supports this silver through this first axostylus axostyle and second axostylus axostyle.This first axostylus axostyle and second axostylus axostyle can confirm that this silver moves (being preferably unclamping/coiling action of silver) in the rotation that printing side off the net does along definite path usually, to remove excessive printing paste from the printing net.
According to a kind of form of embodiment, both all install motor first axostylus axostyle and second axostylus axostyle, and are preferably syncmotor, and its benefit is to allow to control fully the rotary speed of silver along the upper reaches and the downstream in silver path.
Perhaps, only first axostylus axostyle is installed motor in order to reclaiming silver, and this second axostylus axostyle idle running (idle) or because of friction rotates freely, vice versa.
This silver can twine (wound) along the closed ring path between first and second axostylus axostyles.
Perhaps, this silver can launch (develop) along the open circular path between second axostylus axostyle and first axostylus axostyle.In this situation, according to the particular form of the embodiment of the invention, dally or receive order and second axostylus axostyle that rotates can be presented this silver, receive first axostylus axostyle that order rotates then can rewinding and reclaim silver.
According to an aspect of the present invention, this silver is processed by the textile material of non-resilient or inductility.Because it is qualitative that the silver that so designs can not extend and guarantee in use have best constant; So it is favourable using the embodiment of non-elastic fabric; Because it is identical to rest on the online fabric amount of printing; And also because can not be out of shape substantially, extend or shrink, so can guarantee to be cleaned regional width or amplitude unanimity.Moreover, give the credit to the indeformable ability of this fabric, we obtain this fabric and interact with constant speed and printing net, thereby obtain constant contact surface.
Another advantage is that the speed of this silver can be made real-time and equal response when the speed of stiff fabric silver need be accelerated or slow down.
In addition, according to the present invention, this cleaning device comprises the rotary pressure roller bearing, and peripheral part of pressure roller can support this silver, makes this silver itself between the printing net of pressure roller and top.Silver path along between first axostylus axostyle and second axostylus axostyle is provided with this pressure roller.
Moreover this cleaning device comprises mobile unit, and this moves the unit can move this pressure roller towards the printing net, and optionally to make this silver to confirm that contact pressure contacts this printing net, this confirms that contact pressure is consistent with the clean operation that will carry out.
This embodiment with rotational pressure roller bearing allows not have and wipes emotionally under the condition at the online base measuring pressure of this printing, and thereby reduces the online frictional force of printing.This embodiment also lets employed fabric have evenly and normal consumption, that is, reduce fabric abrasion, thereby prolong the service life of top printing net.The cylindrical geometry of the rotation of this pressure roller and outer surface thereof itself can be used to make mobile this cleaning silver desired power to reach optimization, reduces energy consumption.
In addition, it is favourable can netting the combination of rotating the use that reaches mobile pressure roller and above-mentioned non-elastic fabric towards printing, because the uniform cleaned of execution is on the net being printed in this combination permission, also avoids fabric to slide, be out of shape or have the tension force of non-expectation.
According to embodiments of the invention; In order to the fabric of making this silver is that first nylon is that the net that constitutes of silk thread (nylon-based threads) is made, and to utilize second polyester be that silk thread (polyester-based threads) is that silk thread is wound in helical form with this each bar first nylon.The advantage of this mode is that this fabric can not deviate from fiber, silk thread, lousiness or other thing, and because wafer requires to avoid all to pollute usually, so this fabric is in order to the best fabric in the special applications of serigraphy conducting wire on wafer.In addition, the fabric according to this embodiment meets stiff expectation requirement.Moreover the fabric that is produced can not cause friction in the action of cleaning printing net.
According to the present invention, give the credit to the action that this moves the unit, pressure roller has first mode of operation and second non-operating state at least; In first mode of operation; This silver contact print net should print net in order to cleaning, and in second non-operating state, this silver breaks away from printing net.
Preferably, it is made that this pressure roller at least partly can be surrendered (elastic-yielding) material by elastomeric material or elasticity, and for example rubber or bipeltate contact at the online fabric of printing in order to buffering or compensation.In addition, cause the distortion of this pressure roller also can change the clean Surface that is used for that contacts with the printing net according to contact strength according to demand.
Moreover the elastomeric material of pressure roller helps to confirm to bestow the expectation frictional force of this fabric, slides in rotary course to avoid fabric.
According to version, can use different materials (for example, paper) to cover the pressure roller of at least a portion, this different materials can absorb solvent contained in excessive printing paste or the printing paste.
According to alternate embodiment, pressure roller is mounted to and can does idle running (rotatable idly) with respect to the longitudinal axis of itself, and rotates because of the frictional force of silver.In this example, pressure roller can move and rotate along with the rotation that first axostylus axostyle and/or second axostylus axostyle are applied on the silver.
Perhaps, this pressure roller is arranged to receive order and rotate with respect to the longitudinal axis itself, utilize the automatic motor device of itself to rotate for instance, and the driving of preferred and this first axostylus axostyle and this second axostylus axostyle is synchronous.
This first axostylus axostyle and this second axostylus axostyle are installed on the sliding part (slider) that is positioned at printing side off the net.
This sliding part can move in one direction, the placement plane parallel of this moving direction and printing net, and this direction is at least across the action of (be preferably vertically and cross) this blade, in order on the whole lower surface of printing net, to carry out cleaned.For the printing net that is generally horizontal positioned; Have the pressure roller of corresponding cleaning silver can not only be on the direction that usually relatively printing net (being usually located at level) is vertical towards or net away from this printing and to move, can also be through the motion of crossing this sliding part do horizontal transmission and move printing side off the net.In this example, can remove this sliding part from this printing equipment, with control and the maintenance of carrying out this cleaning silver or other accessory.
In addition, in order to satisfy particular requirement, also can sliding part be manufactured on the direction of action of blade is movably.
The direction of pressure roller rotation itself can be with consistent with respect to the motion that moves horizontally of top printing net.Perhaps, pressure roller rotates with inconsistent direction.Select one of them direction or other direction to help to confirm in printing online more powerful cleaned (direction of rotation is inconsistent) or the lighter cleaned (direction of rotation is consistent) of dynamics.
According to a kind of form of embodiment, pressure roller and second axostylus axostyle are arranged on printing side off the net adjacent to each other, make and place the plane with respect to the printing net with the plane of the outer surface tangent of the pressure roller and second axostylus axostyle, be parallel substantially or tilt a little.This mode is pointwise location just not only, and allows that the fabric silver is positioned to flat state and be beneficial to the extension clean surface of confirming that printing is online.Specifically; Be the free ingress area that the clean surface that tilts a little helps createing the printing net with respect to printing net placement surface; This free ingress area contacts by the silver that pressure roller was supported with progressive mode, and obtains more not coarse cleaned, thereby safer.
Particular case according to this version; The pressure roller and second axostylus axostyle have the diameter that equates substantially in this particular case; Pressure roller and the alignment parallel to each other of second axostylus axostyle longitudinal axis separately and be arranged on the plane, it is to be parallel substantially or to tilt a little that the plane is placed with respect to the printing net in this plane.
A kind of variant is arranged at the pressure roller below with first axostylus axostyle.This kind mode can obtain by two axostylus axostyles and the formed triangular structure of pressure roller, and this structure can make the mobile optimization and the reduction volume of silver.
Another kind of variant makes the longitudinal axis of this pressure roller of longitudinal axis alignment of this first axostylus axostyle, that is first axostylus axostyle and pressure roller place on the cross-table, for example places to place the plane with respect to this printing net and be cardinal principle vertically or a little on the plane inclined.
According to another version, this moves the unit and is provided with adjustable actuating (adjustable-type actuation), thereby can under each situation, define the contact pressure of this pressure roller against this printing net according to demand.
Preferably, this cleaning device comprises actuating device, and this actuating device can be connected with the printing net and can will print net and move towards pressure roller.Therefore since should the printing net can be mobile along highly, so printing net can be near the pressure roller that be positioned at its below, the reciprocating motion when cooperating this pressure roller near the printing net is used for carrying out cleaned.
Combine therewith; The present invention also comprises sensor component; It can detect and transmit corresponding signal, this corresponding signal be this printing net and this pressure roller back and forth near motion process in this printing net with respect to this pressure roller fixed limit system position (determinate limit position) really.So help to define the online suitable cleaning strength of printing, also can be preferably define the online suitable cleaning strength of printing according to the DE of employed printing net.
Other advantage according to solution of the present invention is the data that can be remembered in system controller can be provided, to control and to adjust subsequent operation step and/or subsequent operation cycle according to these data.
Description of drawings
Consult the explanation of above preferred embodiment, can understand above-mentioned characteristic of the present invention and other characteristic, and preferred embodiment is the non-limiting example with reference to accompanying drawing, wherein:
Fig. 1 is the signal isometric view of treatment system, and this system can merge use with the device according to the embodiment of the invention.
Fig. 2 is the schematic plan view of the treatment system of Fig. 1.
Fig. 3 is the stereogram according to cleaning device of the present invention.
Fig. 4 is the front view according to cleaning device of the present invention, this cleaning device connecting filament reticulated printing net and corresponding printing blade.
Fig. 5 is the plan view from above according to cleaning device of the present invention, and this cleaning device connects corresponding printing blade.
Fig. 6 is the side view according to cleaning device of the present invention, and this cleaning device connects corresponding printing blade.
For the ease of understanding, use same reference numerals to indicate total same components among these figure as far as possible.Need not to further specify, the assembly of an embodiment of expectability and characteristic can advantageously be incorporated among other embodiment.
The specific embodiment
Consult accompanying drawing; Cleaning device 10 according to the present invention is installed in the processing head of screen printing apparatus 100 or the serigraphy net or the wire mark of print head 102 shields 12 belows; This equipment can be in order to go up the serigraphy conducting wire at base material (for example, being used to make the silicon-based wafer of photoelectric cell).
Fig. 1 is the visual angle figure such as signal of substrate material processing apparatus or system 100, and this system 100 can and use with the embodiment of the invention.In one embodiment, system 100 comprises 102, two output conveyer (outgoing conveyors) 112 of two input conveyors (incoming conveyor) 111, actuator 140, a plurality of processing nest (processing nest) 131, a plurality of processing and system controller 101 usually.Input conveyor 111 is construed as the parallel processing structure; Make that each input conveyor can be from feeding device (for example; Pan feeding conveyer 113) receive untreated base material 150, and each untreated base material 150 is sent in the processing nest 131, this is handled nest 131 and is connected with actuator 140.In addition, output conveyer 112 adopts the run-in indexs design, makes that respectively exporting conveyer can receive the base material of processing 150 from processing nest 131, and each has been handled base material 150 is sent to base material and removes device, for example, and discharging conveyer 114.In one embodiment, each discharging conveyer 114 is applicable to that transmission handled base material 150 through baking oven 199, in order to sclerosis through handling 102 materials that are deposited on the base material 150.
In one embodiment, base material 150 is microcrystal silicon base materials, in order to make solar cell above that.In another embodiment, base material 150 is to give birth to embryo ceramic base material (green tape ceramic substrate) or similar base material.
In one embodiment of the invention, system 100 is screen printing treatment systems, and handles 102 and comprise a plurality of screen printing members, and it is configured to web plate printing material patterned layer on base material 150.In another embodiment, system 100 is ink-jet printing systems, and handles 102 and comprise a plurality of ink jet printing members, and it is configured to deposition materials patterned layer on base material 150.In another embodiment, system 100 a kind ofly comprises the treatment system that material removes member handling in 102, for example comprises laser, and it is in order to one or more zone of excision or etching base material 150.In other embodiments, system 100 can comprise other base material treatment module that the accurate base material of requirement moves and locatees, in order to carry out base material treatment.
Fig. 2 is the schematic plan view of the system 100 of Fig. 1.Fig. 1 and 2 illustrative system 100 has two processing nests 131 (being positioned at " 1 ", " 3 " position), and each is handled nest and is set to all can the base material of having handled 150 is sent to output conveyer 112 and receive the base material 150 that is untreated from input conveyor 111.Therefore, in system 100, " A " path shown in Fig. 1 and 2 is normally followed in moving of base material.In this structure; Other two processing nests 131 (being positioned at " 2 ", " 4 " position) are positioned at separately handles 102 below; And can be on the base material 150 that is untreated that is positioned on the processing nest 131 out of the ordinary implementation processes such as (for example, screen printing, ink jet printing or material) removing.This kind parallel processing structure allows that the treatment system floor space with minimum obtains bigger processing capacity.Handle 102 and four processing nests 131 though shown system 100 has two, under the situation that does not depart from the scope of the invention, this system 100 possibly comprise extra processing 102 and/or handle nest 131.
In one embodiment; Input conveyor 111 and output conveyer 112 comprise at least one band 116, and it is in order to support base material 150 and borrowing use and the actuator (not shown) of system controller 101 communications is delivered to the interior desired locations of system 100 with base material 150.Though Fig. 1 and 2 illustrates the base material induction system of a kind of pair of strip-type substantially, under the situation that does not depart from base region of the present invention, can use the conveying mechanism of other form to carry out identical base material transmission and positioning function.
In one embodiment, system 100 also comprises detection system 200, and this detection system 200 is suitable for before or after carrying out processing procedure, to seek and to detect base material 150.Detection system 200 can comprise one or more video camera 120, and is as illustrated in fig. 1 and 2, and these video cameras 120 are provided with the base material 150 that is arranged in loading or unloading position (" 1 ", " 3 ") in order to detection.Detection system 200 comprises the electronic component that system controller 101 can be sought, detect and the result reached at least one video camera 120 (for example, CCD camera) and other usually.In one embodiment; Detection system 200 is sought the position of some feature structure of input base material 150, and testing result is reached system controller 101, is used to analyze the direction and the position of this base material; With before handling base material 150, help below handling 102, to come accurately location base material 150.In one embodiment, detection system 200 detects base materials 150, damages or because of the untreated base material of careless omission and be able to remove from production line.In one embodiment, but handle nest 131 each self-contained lamp or other similar optical radiation device,, thereby be more convenient for detecting base material through detection system 200 in order to the base material 150 of illumination position on the processing nest.
The system controller 101 that schematically illustrates in the drawings can help the control and the automation of single unit system 10, and system controller 101 can comprise CPU (CPU does not show), internal memory (not shown) and support circuit or I/O (not shown).CPU can be the computer processor of arbitrary form; It can be used to carry out industry and sets (for example to control various chamber processes and hardware; Conveyer, detector, motor, fluid delivery hardware etc.), and keep watch on this system and chamber process (for example substrate location, process time, detector signal etc.).Internal memory is connected to CPU, and can be one or more present obtainable internal memory, for example is positioned at the digital storage device of random access memory (RAM), read-only storage (ROM), floppy disk, hard disk or other form of long-range or system (local).Codified and storing software instruction and data in the internal memory are to be used to command CPU.Support that circuit also is connected to CPU, support processor with known mode.Support that circuit can comprise fast access device (cache), power supply unit, clock circuit, input/output circuitry, subsystem etc.
In one embodiment; Be used for two of system 100 and handle 102 and can be general screen printing head (can available from Applied Materials Italia Srl), these screen printing heads are suitable for to go up with 150 surfaces of the base material on the processing nest 131 of position " 2 " or " 4 " in the screen printing process and come deposition materials with desired pattern.In one embodiment; Handle 102 and comprise a plurality of actuators; For instance; For with the actuator 105 (for example, stepper motor or servo motor) of system controller 101 communications, and these actuators are in order to adjust and place position and/or the angle direction of handling the screen printings shielding (not shown) in 102 with respect to waiting to print base material 150.In one embodiment, screen printing shielding is sheet metal or metallic plate, in this metallic plate, runs through to form a plurality of holes, slit or other perforate to define pattern and in order to the screen printing material is placed on the surface of base material 150.In one embodiment, the screen printing material can comprise electrically conductive ink or conductive paste, dielectric ink or dielectric cream, doping glue, etching glue, one or more masking material or other conduction or dielectric material.Usually, the information of utilizing actuator 105 and system controller 101 to receive from detection system 200 is located the direction of web plate print shield, and makes the lip-deep screen printing pattern aligning base material 150 of desiring to be deposited on base material 150 with the automation mode.In one embodiment, handling 102 is applicable at width and on the solar cell base of about 70mm to 156mm, deposits containing metal or contain the material of dielectric medium between about 125mm to 156mm and length.Usually, in the situation of screen printing process, handling in 102, printing blade 14 along directive effect shown in the arrow F on printing net 12 (only being illustrated among Fig. 4 for ease), to disperse and to print this conductive paste.The plane, place of first direction shown in the arrow F and the placement plane parallel of printing net 12.Device 10 comprises support sliding part 16, and this sliding part 16 has a plurality of sidewalls 18 to define inner containing seat (internal housing seating) 26.
At the containing seat 26 inner first rewinding axostylus axostyle 20 and the second feed-in axostylus axostyles 22 installed; These axostylus axostyles are rotatable to be installed on the sidewall 18 and both are respectively through the motor drive; To control the rotation of the cleaning silver 21 that links to each other with axostylus axostyle, this cleaning silver 21 is made by fabric.
The first rewinding axostylus axostyle 20 and the second feed-in axostylus axostyle can be controlled cleaning silver 21 along confirming rotatablely moving of path (usually below printing net 12), are preferably and unclamp/reel, to remove excessive printing paste from printing net 12.
Particularly, on the sidewall 18 of containing seat 26 outsides, first motor 23 (Fig. 5) and second motor 25 (Fig. 4) are installed, these motors drive the rotation of first axostylus axostyle 20 and second axostylus axostyle 22 respectively.
According to one embodiment of the invention, this path is the closed circular path, makes silver 21 to reel along this closed circular path between first axostylus axostyle 20 and second axostylus axostyle 22.
Perhaps, silver 21 can extend along the open cyclic path between second axostylus axostyle 22 and first axostylus axostyle 20.In this example, according to the particular form of embodiment, this idle running or receive order and second axostylus axostyle 22 that rotates can be presented this silver 21, then ability rewinding and reclaim silver of first axostylus axostyle 20 that rotates takes orders.
According to the present invention, can use the made silver of elasticity or non-elastic material 21.In example, using is non-resilient or inelastic textile material comparatively speaking.
Particularly, not extending usually according to non-elastic fabric material used in the present invention, and when stress application, and be preferably when receiving tangential deformation or tangential tractive force, this non-elastic fabric material has the minimal elastic distortion.
Preferably, the fabric of making silver 21 is made by nylon wire (nylon mesh), and it is silk thread (polyester-based threads) the spiral helicine line that is wound in that this nylon wire has by polyester.For example, employed fabric can be MiraWIPE
commodity of selling on the market.
Use fabric silver 21 to allow to clean the printing net and need not to use solvent, thus the printing paste of avoiding the solvent infringement printing net back side to locate.
In addition; Because so the silver 21 of design is not extending and can to guarantee in use have best constant qualitative; So it is favourable using the embodiment of non-elastic fabric; Because the fabric amount that rests on the printing net 12 is always identical, and can not be out of shape, extends or shrink substantially, can guarantee that the width of cleaning area or amplitude are consistent.Moreover, give the credit to the indeformable ability of this fabric, we obtain this fabric and interact with constant speed and printing net 21, thereby obtain constant contact surface.
When the rotary speed of non-elastic fabric silver 21 need be accelerated or slow down, find that the speed of this silver can be made the homogeneous response that equates with the speed of rotary shaft 20 and 22 in real time, it also is useful therefore using the embodiment of non-elastic material.
According to one embodiment of the invention; Is that the net that constitutes of silk thread (nylon-based threads) is made in order to the fabric of making silver 21 by first nylon, and to utilize second polyester be that silk thread (polyester-based threads) is that silk thread is wound in helical form with every first nylon.The advantage of so doing is that this fabric can not deviate from fiber, silk thread, lousiness or other thing, because wafer need avoid all to pollute usually, so this fabric is the best fabric in order to the special applications of serigraphy conducting wire on wafer.In addition, the fabric according to this embodiment can meet stiff expectation requirement.Moreover the fabric that is produced can not rub in the action of cleaning printing net.
For instance, the hard especially or tool frictional property of the conductive paste of removing when desire and when indomitable especially, use the cleaning device 10 of fabric silver 21 rather effective to cohering of surface.In this kind situation, it possibly make false (false) serigraphy, and its solvent that contains usually in only can the conductive paste with firm dispersion bedews this printing net 12, in order to crust that helps softening printing paste and the mechanical cleaning action that promotes silver 21.
Shown in the arrow S among Fig. 3, the rotation of first axostylus axostyle 20 and second axostylus axostyle 22 can be confirmed the whole spinning movement of silver 21, to be used for printing subsequently the mechanicalness cleaned of net 12.
Therefore, at the near surface (seeing Fig. 4 and 6) of printing net 12, the direction of rotation of silver 21 is in the opposite direction with moving horizontally of printing net 12 usually.As will explain in the literary composition of back that silver 21 and printing net 12 also can make silver 21 rotate each other repeatedly near to confirm contact point after confirming contact point.
Moreover; Cleaning device 10 also comprises rotational pressure roller bearing 24; This pressure roller 24 is arranged between first axostylus axostyle 20 and second axostylus axostyle 22 along the path of this silver 21, and supports this silver 21 rotatably, these silver 21 tangents the outer surface of this pressure roller 24 of passing through; And make the lower surface of silver 21 contact print nets 12, and the net of cleaning printing mechanically 12.
Particularly, pressure roller 24 itself can be around the rotary longitudinal X of himself " ' and the rotation (see figure 5).
According to version, pressure roller 24 can be freely and dallies, and moves rotation pressure roller bearing 24 because of frictional force along with what force silver 21 through first axostylus axostyle 20 and/or second axostylus axostyle 22.
Another version utilizes the motor apparatus (not shown), for example stepper motor or servo motor order pressure roller 24 rotations, and the driving of preferred and this two axostylus axostyle 20 and 22 is synchronous.The advantage of this mode is to allow to control fully along the upper reaches in the path of this silver 21 and the rotary speed of the silver 21 in downstream.For example, utilisation system controller 101 is reached this synchronization action.
According to another embodiment of the invention, motor drives first axostylus axostyle 20 reclaiming this silver 21, and 22 of this second axostylus axostyles dally because of frictional force or rotate freely, and anti-is as the same.
In addition, shown in the arrow M among Fig. 6, borrowing and for example using that system controller 101 can make pressure roller 24 optionally raise or reduce, so that silver 21 contact print nets 12.
So; As seen in fig. 4; This pressure roller 24 has first mode of operation that contacts with this printing net 12 at least; And second non-operating state that breaks away from this printing net 12, represent with continuous lines that this pressure roller 24 is in non-operating state and is represented by dotted lines this pressure roller 24 among the figure and be in mode of operation.
Suitably drive this pressure roller 24 and move up, that is towards printing net 12, and the lower surface of promotion silver 21 contact print nets 12, to carry out mechanical cleaning.For example, can utilize system controller 101 to adjust the integral pressure of pressure roller 24 according to the requirement for cleaning or the characteristic of printing net 12 and/or conductive paste.
The directions of pressure roller 24 rotation itself can be consistent with respect to direction that top printing net 12 moves horizontally with it.Perhaps, pressure roller 24 can rotate with inconsistent direction.Select one of them direction or other direction to be beneficial to confirm on printing net 12, use more powerful cleaned (direction of rotation is unlikely) or the lighter cleaned (direction of rotation causes) of dynamics.
Embodiment with rotational pressure roller bearing 24 can let employed fabric have evenly and normal consumption, that is the fabric abrasion reduction, thereby prolongs the service life of top printing net 12.The cylindrical geometry of the spinning movement of this pressure roller 24 and outer surface thereof itself can make mobile this cleaning silver desired power reach optimization, and reduces energy consumption.
In certain embodiments of the present invention, can use different materials (for example, paper) to cover the pressure roller 24 of at least a portion, this different materials can absorb contained solvent in excessive printing paste or the printing paste.
Suitable mobile unit 28 capable of using confirm pressure roller 24 with respect to printing net 12 away from or approaching moving both vertically.
According to the aspect of embodiment, move unit 28 and comprise two directing assemblies 30, it is positioned on the inner two side 18 of this containing seat 26, and is positioned to two terminal combinations with the rotating shaft of this pressure roller 24.Slidably hold sliding block (sliding block) 32 in these two directing assembly 30 inside.Each sliding block 32 is connected to relative sliding part 31, and this relative sliding part 31 in turn is connected to the axostylus axostyle end of pressure roller 24, in order to confirm moving of sliding part.Based on this purpose, linear actuators 34 is set moves each relative sliding part 31, thereby raise or reduce this pressure roller 24 according to demand.Preferably, the action of linear actuators 34 is adjustable, in order to proofread and correct the contact pressure on printing net 12.
According to the present invention, give the credit to the action of moving unit 28, for pressure roller 24 provides first mode of operation and second non-operating state; In first mode of operation; Silver 21 contact print nets 12 should printing net 12 with cleaning, and in second non-operating state, silver 21 breaks away from printing net 12.
Clear know that for the pressure roller 24 that moves up, therefore version provides single directing assembly 30 in a side of containing seat 26 according to the present invention, it has relative sliding block 32, sliding part 31 and linear actuators 34 relatively.
Because upwards silver is very fragile when pushing silver 21, so pressure roller 24 is preferably at least partly made by flexible material, for example rubber or bipeltate.So can allow to compensate and/or cushion between contacting between printing net 12 and the silver 21.
According to a kind of form of embodiment, device 10 comprises actuating device 36 (for ease, only being illustrated in Fig. 4 and 6), and this actuating device can confirm that printing nets 12 linearities with respect to silver 21 below it and move, moving up and down or on the contrary shown in arrow H.
In certain embodiments, the design of actuating device 36 is identical with the actuator 105 shown in Fig. 2.
Therefore, height that can mobile printing net 12 helps the cooperation between this printing net 12 and silver 21 in cleaning.Preferred identical system controller 101 capable of using is controlled the driving of actuating device 36, to confirm printing net 12 and silver the last 21 or more weak expectation contact pressure.Can confirm printing net 12 stronger or more weak pressure on silver 21 according to the cleaning kind of desired execution.
According to a kind of form of embodiment, device 10 comprises inductive component or sensor, and in back and forth approaching motion process, inductive component can detect this printing net 12 positions with respect to below pressure roller 24.
In certain embodiments, inductive component can be the pressure sensitive assembly that is connected to dynamometer (load cell) or other device that is suitable for judging pressure.Therefore, inductive component also can be used for defining the pressure of the printing net 12 on this silver 21.The signal that utilisation system controller 101 is handled from inductive component is confirmed the contact pressure of printing net 12 on this silver 21 with control actuating assembly 36.
According to version, inductive component comprise contact pilotage 38 (Fig. 5 and 6) but or other member of detected pressures, it is arranged on printing net 12 belows and highly extends upward confirming.This height with should printing net 12 in cleaning course and below desired distance between the silver 21 relevant.In this scheme, example shown in accompanying drawing, contact pilotage 38 is along axostylus axostyle 20,22 and pressure roller 24 and the central position between the two side 18 vertically is set.
Utilize inductive component (is contact pilotage 38 at this example) can record and contact and the pressure signal related, and signal is reached system controller 101.
When printing net 12 near silver 21 when cleaning, the terminal lower surface with printing net 12 of going up of contact pilotage 38 is conflicted.Thereby producing relative signal, contact pilotage 38 should reach system controller 101 by relative signal, this system controller 101 thereby order this printing net 12 to stop towards the mobile of silver 21.38 assemblies that make the signal of printing net 12 and silver 21 its reciprocal elevating movements of termination as transmission of contact pilotage.
Can use one or more photocell to confirm the position between printing net 12 and the silver 21, in order to replace contact pilotage 38 as inductive component.
In certain embodiments, contact pilotage 38 or other pressure sensitive assembly can with photocell and usefulness, in order to the contact pressure of definition printing net 12 on silver 21 and the reciprocal position of printing net 12 and silver 21.
According to alternate embodiment; Second axostylus axostyle 22 and the pressure roller 24 that are placed on the same level have relative rotation axi X separately " and X " ', the rotating shaft X ' of first axostylus axostyle 20 then is positioned at the rotating shaft X of this second axostylus axostyle 22 and pressure roller 24 " and X " ' place plane the below.Axostylus axostyle 20 and 22 and pressure roller 24 also have separately rotating shaft X ', X ", X " ', this rotating shaft is parallel and cross the first direction shown in the arrow F.In this example, when direction shown in the arrow L in Fig. 3 when side is watched, axostylus axostyle 20 and 22 and the geometrical construction of pressure roller 24 be arranged to the triangle stereochemical structure.
In some embodiments of the invention; This pressure roller 24 and this second axostylus axostyle 22 are arranged at this printing net 12 belows with mode adjacent one another are; Therefore make for the placement plane of this printing net 12, be parallel substantially or inclination a little with the plane of both outer surface tangents of this pressure roller 24 and this second axostylus axostyle 22.This permission is positioned at flat state with fabric silver 21, and helps confirming the extension clean surface on the printing net 12.Particularly; Through the determined clean surface (for example, maximum inclination is 20 °, but can adjust according to customed product) of inclination a little that for the placement plane of printing net 12, is of roller bearing stroke (roller stroke); It helps createing the free ingress area (free lead-in area) of printing net 12; This free ingress area contacts the silver 21 that is supported by pressure roller 24 with progressive mode, and obtains more not coarse cleaned, thereby safer.
A kind of form according to embodiment; Device 10 comprises first horizontally moving device 44 (for ease; Only be illustrated among Fig. 3,4 and 5); Therefore clean this lower surface for silver 21 is brought to the whole lower surface of contact print net 12, through first horizontally moving device 44 sliding part 16 is being crossed on the direction of action of blade 14 in printing net 12 belows and move (action of blade 14 is shown in arrow F).
Particularly, give the credit to mobile device 44, this sliding part 16 can move on the direction vertical with first direction (shown in the arrow F) cardinal principle of blade 14 operations, then representes with arrow G with the vertical direction of first direction cardinal principle.So also allow from print head, to remove sliding part 16 and cleaning device 10, for the purpose of for example safeguarding, rebuilding or changing.Piston 52 is removable, optionally clamps sliding part 16 in the joining base (not shown) to borrow for example to insert, and this sliding part 16 is arranged in the operating position of printing net 12 belows or is arranged in the position of rest in the printing net 12 volumes outside.According to version, photocell can be set, these photocells produce position signals and this signal is handled via system controller 101, to order this mobile device 44 and to control the physical location of this sliding part 16.
Advantageously; According to another version; This device 10 comprises second horizontally moving device 46; Through second horizontally moving device 46 sliding part 16 also can be gone up at second direction D (F is parallel with first direction) and move, and this second horizontally moving device 46 also is arranged on the plane parallel with the placement plane one-tenth that prints net 12.In this situation; Lower portion at sliding part 16 is arranged with a plurality of guide rollers 49; In order to slide along being construed as railway line supporting guide spare 47 especially; This supporting guide spare 47 is installed on the support plate 45 that is positioned at sliding part 16 belows and vertically (longitudinally) extension in one direction, and this direction is crossed first operative orientation (arrow F) of printing blade 14.
Mode according to this can remove sliding part 16 from printing net 12 belows in the print head outside, for example in order to controlling the situation of this silver 21, or in whenever can keep in repair easily.Thus, in addition when the flat component of electronic building brick just during operation, also can keep in repair cleaning device 10 and change silver 21, and need not to interrupt serigraphy operation and process cycle period.
Advantageously, the continuous vision control system (for example consulting the international application case WO-A-2009/053784 number) on being installed in printing press sees and finds that the printing net breaks or when detecting the not good situation of any press quality, device 10 can activate automatically.Yet, far and away,, but think that when being necessary, the operator also can force to activate this device 10 as the operator even if preset time bar is arranged.
Should be understood that and under the situation that does not depart from field of the present invention and scope, cleaning device described in the literary composition 10 to be made modification and/or to add parts, this cleaning device 10 carries out serigraphy in order to cleaning on the printing support member equipment.
Also recognize; Though with reference to a plurality of specific embodiments the present invention is described in the literary composition; But in the affiliated technical field, those skilled in the art must reach other equivalents of this cleaning device, and it can be in order to the equipment of cleaning serigraphy on the printing support member; These equivalents have the characteristic described in the said claim, so contained by the protection domain that claim defined.
Claims (14)
1. cleaning device; Serigraphy net (12) in order to cleaning equipment (100); Said equipment (100) is gone up one or more printed wire of serigraphy in order to use printing material at base material (150); Said cleaning device comprises: first axostylus axostyle (20), second axostylus axostyle (22) and silver (21), and said silver (21) can clean said printing net (12), and supports said silver (21) through said first axostylus axostyle (20) and said second axostylus axostyle (22); Said first axostylus axostyle (20) and said second axostylus axostyle (22) can confirm that said silver (21) moves along the rotation of confirming the path in said printing net (12) below; In order to remove excessive printing paste, it is characterized in that said silver (21) is made by the non-elastic fabric material, and said cleaning device comprises also from said printing net (12):
Rotary pressure roller bearing (24); Said pressure roller (24) is made by flexible material; Peripheral part of said pressure roller (24) can support said silver (21), and along the path of the said silver (21) between between said first axostylus axostyle (20) and said second axostylus axostyle (22) said pressure roller (24) is set; And
Move unit (28), it can move said pressure roller (24) towards said printing net (12), contact with said printing net (12) with adjustable pressure in order to optionally to make said silver (21).
2. cleaning device according to claim 1 is characterized in that be that the net that constitutes of silk thread is made in order to the said fabric of making said silver (21) by first nylon, and to utilize second polyester be that silk thread is that silk thread is wound in helical form with said every first nylon.
3. cleaning device according to claim 1 and 2; It is characterized in that said pressure roller (24) has at least the first mode of operation and second non-operating state; In said first mode of operation; Said silver (21) contact said printing net (12), and in said second non-operating state, said silver (21) breaks away from said printing net (12).
4. according to each described cleaning device in the claim 1 to 3, it is characterized in that said pressure roller (24) but at least part process by elasticity or elasticity compliant material.
5. according to each described cleaning device in the claim 1 to 4, it is characterized in that said pressure roller (24) at least the part material that can be absorbed excessive printing paste cover.
6. according to each described cleaning device in the claim 1 to 5, it is characterized in that said pressure roller (24) be arranged to can said relatively pressure roller (24) itself the longitudinal axis (X " ') do idle running.
7. according to each described cleaning device in the claim 1 to 5, it is characterized in that being arranged to take orders and the longitudinal axis of said relatively pressure roller (24) itself (X " ') is done rotation with said pressure roller (24).
8. according to each described cleaning device in the claim 1 to 7; It is characterized in that said pressure roller (24) and said second axostylus axostyle (22) are arranged at said printing net (12) below with mode adjacent one another are; Make for the placement plane of said printing net (12), be parallel substantially or inclination a little with the plane of said pressure roller (24) and both outer surface tangents of said second axostylus axostyle (22).
9. cleaning device according to claim 8; It is characterized in that said pressure roller (24) and said second axostylus axostyle (22) have parallel and be positioned at the longitudinal axis separately on the plane (X " ', X "), said plane is parallel substantially with respect to the placement plane of said printing net (12) or tilts a little.
10. according to Claim 8 or 9 described cleaning devices, it is characterized in that said first axostylus axostyle (20) is arranged on said pressure roller (24) below.
11. cleaning device according to claim 10; It is characterized in that the longitudinal axis (X ') of said first axostylus axostyle (20) and the longitudinal axis of said pressure roller (24) (X " ') are positioned on the plane, said plane is parallel substantially with respect to the placement plane of said printing net (12) or tilts a little.
12., it is characterized in that said mobile unit (28) is provided with adjustable actuating, thereby can under each situation, define the contact pressure of said pressure roller (24) against said printing net (12) according to each described cleaning device in the claim 1 to 11.
13. according to each described cleaning device in the claim 1 to 12; It is characterized in that said cleaning device comprises actuating device (36); Said actuating device can be connected to said printing net (12) and can move said printing net (12) towards said pressure roller (24); To cooperate of the back and forth approaching motion of said pressure roller, in order to carry out cleaned to said printing net (12).
14. cleaning device according to claim 13; It is characterized in that said cleaning device also comprises inductive component (38); Said inductive component can detect and transmit corresponding signal; Said corresponding signal be said printing net (12) and said pressure roller (24) back and forth near motion process in, said printing net (12) is with respect to said pressure roller (24) fixed limit system position really.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITUD2009A000163A IT1395784B1 (en) | 2009-09-16 | 2009-09-16 | CLEANING DEVICE FOR A SCREEN PRINTING EQUIPMENT ON A PRINT SUPPORT. |
| ITUD2009A000163 | 2009-09-16 | ||
| PCT/EP2010/062844 WO2011032842A1 (en) | 2009-09-16 | 2010-09-02 | Cleaning device for an apparatus for silk-screen printing on a print support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102481779A true CN102481779A (en) | 2012-05-30 |
Family
ID=41794665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800395561A Pending CN102481779A (en) | 2009-09-16 | 2010-09-02 | Cleaning device for an apparatus for silk-screen printing on a print support |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2477817A1 (en) |
| CN (1) | CN102481779A (en) |
| IT (1) | IT1395784B1 (en) |
| TW (1) | TW201113159A (en) |
| WO (1) | WO2011032842A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112154070A (en) * | 2018-05-25 | 2020-12-29 | 株式会社富士 | Cleaning unit and printing device |
| CN114523758A (en) * | 2022-02-14 | 2022-05-24 | 苏州市中辰昊科技有限公司 | Solar cell printing and screen printing plate wiping mechanism |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105007035A (en) * | 2015-08-21 | 2015-10-28 | 杨炳 | Solar power supply device with left and right limit |
| TWI781741B (en) * | 2021-08-26 | 2022-10-21 | 鼎聖機械股份有限公司 | System and method of intelligent screen printing |
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| CN114523758B (en) * | 2022-02-14 | 2023-01-03 | 苏州市中辰昊科技有限公司 | Solar cell printing and screen printing plate wiping mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| ITUD20090163A1 (en) | 2011-03-17 |
| TW201113159A (en) | 2011-04-16 |
| EP2477817A1 (en) | 2012-07-25 |
| WO2011032842A1 (en) | 2011-03-24 |
| IT1395784B1 (en) | 2012-10-19 |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20120530 |