CN1939718A - Mounting structure of transverse leak-proof and silk screen printing device - Google Patents
Mounting structure of transverse leak-proof and silk screen printing device Download PDFInfo
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- CN1939718A CN1939718A CN 200610141913 CN200610141913A CN1939718A CN 1939718 A CN1939718 A CN 1939718A CN 200610141913 CN200610141913 CN 200610141913 CN 200610141913 A CN200610141913 A CN 200610141913A CN 1939718 A CN1939718 A CN 1939718A
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Abstract
The present invention relates to a mounting structure of transverse leak-proof and silk screen printing device. The screen process printing device has a movable head, at which a squeegee 46 is supported rotatablely around an axis in parallel with the longitudinal direction of the squeegee 46. The squeegee 46 is assembled into a unit assembling member of a head as a squeegee unit by retaining the squeegee 46 with a squeegee holder 47. In addition, the paste side leakage baffle 50 is installed rotatablely in the squeegee holder 47, and the side leakage baffle 50 is retained in a specified neutral position by a pair of leaf springs 58. These leaf springs 58 are directly assembled in a spring holder 60 at the terminal of the squeegee holder with the help of bolts 62, and can be attached/detached independently by manipulating the bolts 62. The present invention is capable of enhancing the maintainability of a screen process printing device with a side leakage baffle installed to a squeegee in a displaceable manner.
Description
Technical field
The present invention relates to a kind of on substrates such as printed circuit board (PCB) the mounting structure of the transverse leak-proof plate of the silk-screen printing device of the paste of coating paste scolder and so on, and adopt the silk-screen printing device of this structure.
Background technology
Silk-screen printing device in the past, generally be to being loaded in the overlapping coverage mask sheet of circuit board (mask sheet) on the platform, supply to pastes such as paste scolder on the mask sheet, conductive paste then by scraper plate expansion, utilize formed peristome on the mask sheet thus the assigned position of paste coating (printing) to the circuit board.
In the past, above-mentioned printing equipment, generally include head with a pair of liftable, scraper plate that incline direction is different, this head is moved back and forth along mask sheet, be used alternatingly above-mentioned a pair of scraper plate simultaneously and expand paste, but in recent years, for example shown in the patent documentation 1 (Japanese Patent Application Publication communique spy opens flat 10-323964 number), the scraper plate supporting head part has also appearred using, this head can be rotated around the axle parallel with its length direction, and, can at random set the incline direction of scraper plate or the silk-screen printing device of angle by driving scraper plate.
Summary of the invention
In silk-screen printing device, paste outwards flows out from the length direction two ends of scraper plate and causes the paste waste when preventing operation, perhaps stick to the position that need not to apply on the mask sheet, side plate (transverse leak-proof plate) can be set at the length direction two ends of scraper plate, in case laterally the leaking outside of paste suppressing agent.For the contact angle that can set scraper plate arbitrarily, as patent documentation 1 disclosed device, also require when guaranteeing the free degree of contact angle, to prevent laterally leaking outside of paste suppressing agent, for solving above-mentioned problem, can consider by the transverse leak-proof plate being set rotationally at the fixator two ends that keep scraper plate, by leaf spring the transverse leak-proof plate is remained on the neutral position of regulation in addition, thereby can not be subjected to the influence of the direction and the angle (contact angle) of scraper plate plate face, make the sliding-contact of transverse leak-proof plate and laterally leak outside (Japanese patent application 2004-259355 number) of anti-paste suppressing agent.
In the related device of this motion, as mentioned above, under the effect of leaf spring elastic force, transverse leak-proof plate pressure is attached on the mask sheet, therefore, tired (elastic force decline) or damage occurs as leaf spring, then exist the transverse leak-proof plate can not suitably push the worry of mask sheet, so need to be serviced.In addition, be to keep press quality, for example need to finish every batch of cleaning scraper plate when producing or transverse leak-proof plate, remove the unwanted paste that sticks on the scraper plate etc. after, carry out the operation of next batch.Therefore,, how to make things convenient for and carry out apace the maintenance work of the cleaning comprise the transverse leak-proof plate etc., promptly become very important for boosting productivity.
The present invention finishes in view of above-mentioned problem, its purpose be to improve with respect to the scraper plate variable bit the maintainability of the silk-screen printing device of transverse leak-proof plate is set.
For solving above-mentioned problem, silk-screen printing device of the present invention, on the head that moves back and forth relatively along the mask sheet that overlaps on the circuit board, along with the direction of the moving direction quadrature of above-mentioned head, can the elongate scraper plate be set rotationally around the back shaft parallel with its length direction, it is characterized in that having the support component that supports above-mentioned scraper plate; On above-mentioned support component, be provided with and be used to stop the transverse leak-proof plate of paste to the two ends of the length direction of scraper plate flows outside; Above-mentioned transverse leak-proof plate, with the direction of above-mentioned back shaft quadrature on, with respect to scraper plate displacement relatively, push with respect to the aforementioned mask sheet by the spring members that is installed on above-mentioned support component or the transverse leak-proof plate simultaneously, above-mentioned in addition spring members can load and unload (technical scheme 1) separately with respect to its installation portion.
Adopt this silk-screen printing device, when scraper plate was contacted with the mask sheet surface with the contact angle of stipulating, the transverse leak-proof buttress was according to this contact angle displacement.At this moment, make the transverse leak-proof plate be squeezed on the mask sheet and have no sliding-contact with gap, can prevent laterally leaking outside of paste suppressing agent by spring members.On the other hand, spring members uses when fatigue etc. occurring because of long-term, can continue to obtain suitable elastic force with respect to the transverse leak-proof plate by changing spring members.Therefore at this moment, can load and unload spring members separately, can make things convenient for and change spring members apace with respect to support component.
Particularly, in above-mentioned silk-screen printing device, for example above-mentioned scraper plate can be fixed on the above-mentioned support component, above-mentioned support component can rotate around above-mentioned back shaft, so that can following the rotation of this support component, the incline direction of above-mentioned scraper plate and angle change, the rotatable earth's axis of above-mentioned support component supports above-mentioned transverse leak-proof plate, as above-mentioned spring members, be provided with a pair of leaf spring, with respect to above-mentioned transverse leak-proof plate, be connected to the rotation direction both sides of this transverse leak-proof plate respectively, follow the transverse leak-proof plate to produce bending by leaf spring with respect to the rotation of above-mentioned support component, make above-mentioned transverse leak-proof plate extruding mask sheet, these leaf springs can directly be fixed on (technical scheme 2) on the above-mentioned support component by screwed part.
In this structure, when making scraper plate contact mask sheet, the transverse leak-proof buttress relatively rotates with respect to support component according to its contact angle, and the elastic force that the bending of the leaf spring that causes by this rotation produces is squeezed in the transverse leak-proof plate on the mask sheet.And leaf spring is when fatigue etc. occurring, can change spring members separately and handles rapidly by unclamping screwed part.
On the other hand, for solving above-mentioned problem, the mounting structure of transverse leak-proof plate of the present invention, on the head that moves back and forth relatively along mask sheet, along with the direction of the moving direction quadrature of this head, the elongate scraper plate is set, be provided with in the transverse leak-proof board mounting structure of the silk-screen printing device that stops the transverse leak-proof plate that paste leaks outside at the length direction two ends of this scraper plate, in the support portion of above-mentioned scraper plate and any one party of transverse leak-proof plate the installation axial region is set, the opposing party chimeric the use recess releasably chimeric with respect to above-mentioned axial region is set, this chimeric recess of using can be chimeric with respect to above-mentioned axial region, so that above-mentioned transverse leak-proof plate is installed in (technical scheme 3) on the above-mentioned support portion.
As mentioned above, when adopting the structure with respect to the releasably chimeric transverse leak-proof plate in support portion of scraper plate, need not tool using etc., can carry out the loading and unloading of transverse leak-proof plate in the individual palpation mode.Therefore, can carry out the cleaning of transverse leak-proof plate and scraper plate more quickly.Also improved assembleability in addition.
About its concrete structure, comparatively it is desirable to, above-mentioned chimeric with recess this axial region of diametric(al) sandwich from above-mentioned axial region, and at least one side of this retained part is by constituting in the curved tabs of the enterprising line bend displacement of the diametric(al) of above-mentioned axial region, and the top of this curved tabs is provided with the holding section (technical scheme 4) that can engage with above-mentioned axial region.
Adopt this structure, when the transverse leak-proof plate is installed, with respect to above-mentioned axial region with the direction of its direction of principal axis quadrature, above-mentioned axial region is inserted chimeric with in the recess.At this moment, follow this insertion process, the curved tabs bending deflection, axial region is inserted to chimeric with behind the bottom of recess, curved tabs is restored, the holding section on its top engages with above-mentioned axial region, is embedded in chimeric state with recess thereby form above-mentioned axial region, and is relative therewith, when taking off the transverse leak-proof plate, when applying the power from chimeric direction of extracting above-mentioned axial region with recess, the fastening state of above-mentioned hook is removed in the curved tabs bending.Therefore, the loading and unloading of above-mentioned transverse leak-proof plate can be carried out, on the other hand, under the installment state of transverse leak-proof plate, the transverse leak-proof plate can be stably kept in the individual palpation mode.
In addition, in the said structure, comparatively it is desirable to, the top of above-mentioned axial region is provided with flange part, the above-mentioned chimeric recess of using is provided with a side the main part of above-mentioned axial region and the position between the above-mentioned flange part, with above-mentioned axial region chimeric (technical scheme 5) in above-mentioned support portion and transverse leak-proof plate.
Like this, adopt and chimericly to be embedded in support portion or the main part of transverse leak-proof plate and the structure between the flange part in the above-mentioned axial region with recess with above-mentioned, the skew (displacement) on the direction of principal axis of transverse leak-proof plate can be prevented, thereby the transverse leak-proof plate can be stably kept.
In addition, in said structure, comparatively it is desirable to, above-mentioned chimericly be arranged in the above-mentioned transverse leak-proof plate with recess, above-mentioned axial region is arranged on (technical scheme 6) on the above-mentioned support portion.
As mentioned above, when being arranged on transverse leak-proof plate side with recess, paste etc. enter under the situation of this recess and adhesion with chimeric, also can clear up easily, therefore be beneficial to the charge and discharge operations of guaranteeing the transverse leak-proof plate and stability is installed.
On the other hand, silk-screen printing device involved in the present invention, on the head that moves back and forth relatively along mask sheet, be arranged on elongate scraper plate on this head along direction with the moving direction quadrature of this head, the transverse leak-proof plate that stops paste to leak outside is set at the length direction two ends of this scraper plate, wherein, above-mentioned transverse leak-proof plate, by each described mounting structure in the technique scheme 3 to 6, be installed on the support portion of supporting above-mentioned scraper plate (technical scheme 7).
Adopt this structure, need not tool using etc., can carry out the loading and unloading of transverse leak-proof plate, therefore can carry out the cleaning of scraper plate or transverse leak-proof plate more convenient and apace in the individual palpation mode.Improved assembleability in addition.
In addition, in above-mentioned silk-screen printing device, above-mentioned scraper plate is supported on the above-mentioned support portion rotationally, so that above-mentioned scraper plate is forward-lean state with respect to direct of travel respectively when above-mentioned head moves back and forth, on the end face of above-mentioned support portion, be provided with the axial region that extends along the length direction of above-mentioned scraper plate, this axial region comprises axle main body that is fixed on the above-mentioned head and the cylindrical body that is installed on this main body, above-mentioned chimeric chimeric with recess and above-mentioned cylindrical body, so that can above-mentioned transverse leak-proof plate (technical scheme 8) joltily be installed around above-mentioned axle main body.
Adopt this structure, relatively rotating blade and transverse leak-proof plate.Therefore, can guarantee the loading and unloading convenience of transverse leak-proof plate, according to the rotational angle of scraper plate, make transverse leak-proof plate sliding-contact mask sheet effectively simultaneously.
In sum, adopt technical solution of the present invention 1 and 2 related silk-screen printing devices, with respect to the scraper plate variable bit the transverse leak-proof plate is set, and by spring members the transverse leak-proof plate is pressed against on the mask sheet, therefore can not be subjected to blade angle restrictedly make the transverse leak-proof plate suitably with the mask sheet sliding-contact.Can load and unload spring members separately in addition, therefore, can carry out the replacing or the cleaning of spring members as required, thereby continue to obtain suitable elastic force with respect to the transverse leak-proof plate, then can be effectively, and make transverse leak-proof plate and mask sheet sliding-contact constantly.Particularly, owing to can load and unload spring members separately, therefore need not to decompose other parts, can make things convenient for and change spring members apace separately, thereby improve maintainability.
In addition, adopt the related transverse leak-proof board mounting structure of technical solution of the present invention 3～7, and the related silk-screen printing device of the technical scheme 8 that adopts this structure, need not tool using etc., can carry out the loading and unloading of transverse leak-proof plate in the individual palpation mode, therefore, can extremely make things convenient for and follow apace the loading and unloading of this transverse leak-proof plate that the cleaning of scraper plate and transverse leak-proof plate carries out.Therefore, can shorten the prune job time when switching batch, boost productivity.
Description of drawings
Fig. 1 is the diagrammatic side views of first embodiment of expression silk-screen printing device involved in the present invention.
Fig. 2 is that the master of expression silk-screen printing device looks sketch.
Fig. 3 is the stereogram of the concrete structure of expression head.
Fig. 4 is the side view of the concrete structure of expression head.
Fig. 5 is the stereogram of the structure of expression scraper component.
Fig. 6 is the three-dimensional exploded view of the structure of expression scraper component.
Fig. 7 is the stereogram of another embodiment of expression scraper component.
Fig. 8 is the three-dimensional exploded view of the structure of expression scraper component.
Fig. 9 is the stereogram of second embodiment (silk-screen printing device that mounting structure was suitable for of transverse leak-proof plate involved in the present invention) of expression silk-screen printing device involved in the present invention.
Figure 10 is the side view of the concrete structure of expression head.
Figure 11 is the three-dimensional exploded view of scraper component.
Figure 12 is the side view of scraper component.
Figure 13 is the side view of scraper component.
Figure 14 is the side view ((a) when unloading, (b) when installing) of scraper component.
The specific embodiment
In conjunction with the accompanying drawings the first embodiment of the present invention is described.
Fig. 1 and Fig. 2 diagrammatically represent silk-screen printing device involved in the present invention, and Fig. 1 is a side view, and Fig. 2 is a front view, represents silk-screen printing device respectively.
Shown in above-mentioned figure, the base station 1 of silk-screen printing device (hereinafter to be referred as printing equipment) is provided with print substrate 3, this print substrate 3 of clamping is provided with in its both sides and is used for printed circuit board (PCB) W (hereinafter to be referred as circuit board W) is moved into and take out of moving into conveyer belt 2a and taking out of and use conveyer belt 2b of print substrate 3.And circuit board W moves into print substrate 3 by moving into conveyer belt 2a, and after accepting printing treatment herein, takes out of by taking out of with conveyer belt 2b.
In addition, in the explanation, be X-direction below with the circuit board W throughput direction of said conveyer belt 2a, 2b, be Y direction with direction with its quadrature on horizontal plane, be that Z-direction describes with direction with X-axis and Y direction quadrature.
Print substrate 3 holding circuit plate W, and it is positioned from its downside with respect to aftermentioned mask sheet 4, mainly comprise circuit board supporting mechanism 17 described later and clamping device 18 etc.
This print substrate 3 is supported on 4 shaft assemblies 10, by the running of this assembly 10, moves on X-axis, Y-axis, Z axle and R axle (rotating around the Z axle) direction.
Promptly, this 4 shaft assembly, 10 stageds ground comprises the fixed station 11 that is fixed on the above-mentioned base station 1, the Y-axis platform 12 that can be provided with along Y direction with respect to this fixed station 11 with relatively moving, the X-axis platform 13 that can be provided with along X-direction with respect to this Y-axis platform 12 with relatively moving, can relatively rotate with respect to this X-axis platform 13 (around the Z axle rotate may) the R pillow block 14 that is provided with, the lifting platform 15 that liftably is provided with respect to this R pillow block 14.And by being arranged at the print substrate 3 support circuit plate W on this lifting platform 15, each 12,13,14,15 is driven by not shown driving mechanism respectively simultaneously.Adopt this structure, circuit board W can be moved to optional position on X-axis, Y-axis, Z axle and R axle (rotating) direction around the Z axle.
Be equipped with mask sheet 4 above print substrate 3, the top of this mask sheet 4 is provided with and comprises that mobile (rolling) supplies to the printing of scraper plate 46 of pastes such as paste scolder on this mask sheet 4, conductive paste with head 6 (to call head 6 in the following text).
In addition, head 6 is installed on the fixed guide 22 that is arranged on the Z-direction on the support component 5, is connected with ball screw 24 by servomotor 23 rotating drive simultaneously.So by the driving of above-mentioned servomotor 23 grades, head 6 moves along Y direction with support component 5 integratedly, head 6 moves along Z-direction with respect to support component 5 simultaneously.
Fig. 3 and Fig. 4 represent the concrete structure of head.
As shown in these figures, head 6 comprises the framework 30 that the aluminium that be equipped with to move the horizontal part 30b that is installed in the 30a of basic courses department (showing among Fig. 1 and Fig. 2) on the said fixing guide rail 22 possibly and almost flatly is fixed thereon etc. is made.
Gripper shoe 31 by slipping column 32 can along the Z-direction displacement be connected to the downside of the horizontal part 30b of this framework 30, be provided with load cell (load cell) equal pressure sensor 34 between this gripper shoe 31 and the horizontal part 30b.And sub-frame 36 can joltily be supported around the axle that is positioned at Y direction by this gripper shoe 31.Particularly, the bottom of gripper shoe 31 (lower surface) is provided with a pair of 31a of portion that hangs down, the 1st back shaft 35 that extends along Y direction across the above-mentioned 31a of portion that hangs down, rotate freely supportedly by bearing etc., sub-frame 36 is installed on the 1st back shaft 35.So this framework 36 can be joltily supported around the axle that is positioned at Y direction.
On sub-frame 36, the supporting component installing component 38 rotationally, are equipped with the drive unit that drives this assembly installing component 38 simultaneously.
In addition, as shown in Figure 3, run through this gear-box 40 and outstanding to the outside at the integrated end (left end among this figure) that gear-box described later (gearbox) 40, the 2 back shafts 37 are installed on the sub-frame 36.Therefore, each connecting portion 38a of assembly installing component 38 is fixed on the 2nd back shaft 37 in the both sides of sub-frame 36 and gear-box 40.
The partial fixing that inserts in the 2nd back shaft 37 in the gear-box 40 has travelling gear (omitting diagram), this travelling gear and idle pulley (idle gear) (the omitting diagram) engagement that is supported in the gear-box 40.And the side of gear-box 40 is fixed with the servomotor 42 as drive source, and the output shaft of this motor 42 inserts in the said gear case 40, and in this part the driven wheel (omitting diagram) that meshes with above-mentioned idle pulley is installed.Promptly, above-mentioned drive unit comprises servomotor 42, above-mentioned each gear and the 2nd back shaft 37 etc., during servomotor 42 runnings, its rotating drive power is by each gear transmission to the 2 back shafts 37, so around the 2nd back shaft 37 rotating drive assembly installing components 38.
Be respectively arranged with transverse leak-proof plate 50 at the length direction two ends of scraping board binding 47, during presswork, prevent that by this transverse leak-proof plate 50 paste suppressing agents are to the side of scraper plate 46 (the X-direction outside) flow (leaking outside).
Transverse leak-proof plate 50 is made of resin material, as Fig. 4～shown in Figure 6, be have with centre line L (as shown in Figure 4) be the boundary from base portion to the approaching mutually symmetrical sliding contact surface 50a of top ends (Fig. 4 for from top to the bottom), the semi-triangular plate-shaped member of 50b, be installed on the end face of scraping board binding 47 so that to be positioned at base portion on the centre line L be that fulcrum (center of rotation) is rotatable around the axle that is positioned at X-direction (can rotate), but and elasticity remain on the neutral position of regulation.
Particularly, as shown in Figure 6, the base portion of transverse leak-proof plate 50 central authorities form the through hole 51 that runs through sheet material along thickness direction, insert the axle collar (collar) 55 in this through hole 51.And standing screw 56 inserts this through hole 51 (axle collar 55) from the outside of transverse leak-proof plate 50, and this standing screw 56 screws togather to insert and runs through the screw 47a that scrapes board binding 47 end faces.So transverse leak-proof plate 50 can be installed in the end of scraping board binding 47 rotationally around the axle that is positioned at X-direction.
In addition, each transverse leak-proof plate 50 at its lateral surface, promptly forms step portion on the face with respect to the opposition side of the installation side of scraping board binding 47, thereby forms a pair of contact-making surface 52a, the 52b that extends along above-mentioned centre line L in the both sides of above-mentioned through hole 51.And, as shown in Figure 5, be fixed on the top of scraping a pair of leaf spring 58 on the board binding 47 and be connected to respectively on contact-making surface 52a, the 52b from the both sides of standing screw 56.
Promptly, no external force acts under the state of transverse leak-proof plate 50, the elastic force of each leaf spring 58 acts on the transverse leak-proof plate 50 equably, thereby transverse leak-proof plate 50 remains on the scope of operation and each sliding contact surface 50a with scraper plate 46, the position (being called the neutral position) that the angle that 50b forms equates, on the other hand, when external force acts on transverse leak-proof plate 50, transverse leak-proof plate 50 is resisted the elastic force of leaf springs 58 and is relatively rotated with respect to scraping board binding 47 (scraper plate 46), and after removing external force, transverse leak-proof plate 50 i.e. backward rotation under the elastic force effect of leaf spring 58, and gets back to above-mentioned neutral position.
In addition, leaf spring 58 releasably is installed in the end of scraping board binding 47, can load and unload with respect to the above-mentioned board binding 47 of scraping separately respectively.Particularly, as Fig. 5 and shown in Figure 6, the spring fixator 60 that comprises a pair of installed surface 61 that is parallel to each other is fixed on the end portion of scraping board binding 47 by screw rod 49, and elongated above-mentioned leaf spring 58 overlaps on above-mentioned each installed surface 61 of this spring fixator 60.And screw rod 62 (screwed part) inserts the erection opening 58a of the base portion be formed at leaf spring 58, and this screw rod 62 screws togather and insert formed screw 61a in each installed surface 61, thereby each leaf spring 58 is fixed in the end profile part of scraping board binding 47.That is, by the fastening of above-mentioned screw rod 62 or dismounting, can be with respect to scraping board binding 47 loading and unloading leaf spring 58 separately.
Below, the action effect of the printing equipment that adopts said structure is described.
Beginning is during presswork in this printing equipment, at first by the running of 4 shaft assemblies 10, remains on the downside that circuit board W on the print substrate 3 is reset at mask sheet 4.
And, along with moving of head 6, scraper plate 46 is set at the top of the operation starting position of regulation, pass through the running of assembly installing component 38 simultaneously, scraper plate 46 rotates displacements, and as shown in Figure 4, scraper plate 46 is shifted to when right-hand, shown in the solid line among this figure, scraper plate 46 is configured to the anteflexion heeling condition of direct of travel.Regulation angle of attack when at this moment, scraper plate 46 is set to presswork.The angle of attack herein is the contact angle of scraper plate 46 with respect to mask sheet 4, that is, scraper plate 46 is contacted with mask sheet 4 and when carrying out the expansion operation of paste scraper plate 46 with respect to the inclination angle of mask sheet 4.
Then, head 6 descends, and scraper plate 46 is set at the height and position of the contact point butt on marginal portion and the mask sheet 4.At this moment, drive control head 6 based on the measured value of above-mentioned pressure sensor 34, thus make scraper plate 46 with predefined pressure crimping on mask sheet 4.
In addition, after scraper plate 46 is set at the height and position that contacts with mask sheet 4 as described above, transverse leak-proof plate 50 is by a certain side slip contact-making surface 50b and mask sheet 4 butts, and the angle of attack according to scraper plate 46 rotates from above-mentioned neutral position with respect to scraping board binding 47 simultaneously.And this moment, the elastic force of transverse leak-proof plate 50 opposing leaf springs 58 rotates, thus sliding contact surface 50b is being squeezed on the mask sheet 4 under the effect of this elastic force, so make transverse leak-proof plate 50 have no to be crimped on gap on the mask sheet 4.
Thus, when scraper plate 46 is crimped on the contact point of regulation, supply with paste to mask sheet 4 by not shown feedway, then, move (toward moving) by head 6 along Y direction, the paste on the mask sheet 4 is by scraper plate 31 expansions, and the peristome coating (printing) by mask sheet 4 is to circuit board W.At this moment, prevent laterally leaking outside of paste suppressing agents, thereby advance the expansion operation of paste effectively by transverse leak-proof plate 50.
Behind the scraper plate 46 incoming terminal positions, drive by the rising of head 6 and the counter-rotating of assembly installing component 38, shown in two chain-dotted lines among Fig. 4, the incline direction of scraper plate 46 is switched, the misplacing of stencil of while executive circuit plate W, the replacement of circuit board 3 on the print substrate 3, and the resetting of the circuit board W of relative mask sheet 4.And same as described above, after scraper plate 46 was crimped on the mask sheet 4 with the regulation angle of attack, head 6 moved along Y direction, moves (double action) by this, and the paste on the mask sheet 4 is by scraper plate 46 expansions.At this moment, transverse leak-proof plate 50 is by its opposite side sliding contact surface 50a, promptly is crimped on the mask sheet 4 with the sliding contact surface 50a of a side opposite when moving, thereby and prevents laterally leaking outside of paste suppressing agent when moving in the same manner.
Then, scraper plate 46 towards being reversed, and scraper plate 46 moves back and forth along mask sheet 4, thus by the peristome that forms on the mask sheet 4 can be successively with paste coating (printing) on circuit board W.
In addition, carry out in the process of above-mentioned presswork, the aging in time fatigue (elastic force decline) that occurs of above-mentioned leaf spring 58 to transverse leak-proof plate 50 application of forces, or plastic deformation etc. takes place in the leaf spring 58, thereby in the time of can not producing suitable elastic force, in the operation, exist to form the possibility that gap, paste laterally leak outside between transverse leak-proof plate 50 (sliding contact surface 50a, 50b) and the mask sheet 4.Therefore need to change leaf spring 58.At this moment, in this printing equipment, as mentioned above, leaf spring 58 is installed in by screw rod 62 and scrapes on the board binding 47 (spring fixator 60), thereby can load and unload, therefore, by the operation of screw rod 62, can make things convenient for and load and unload leaf spring 58 apace, realize the quick replacing of leaf spring 58.
Particularly, in this printing equipment, to be connected to respectively on the transverse leak-proof plate 50 from the rotation direction both sides to a pair of leaf spring 58 of the neutral position application of force, as mentioned above, each leaf spring 58 by screw rod 62 independent stationary, may be dismantled separately respectively, therefore respectively, can promptly take off the leaf spring 58 that needs replacing separately, rationally realize the replacing of leaf spring 58.Promptly, also can the spring members that be equipped with corresponding to a pair of plate spring sheet of leaf spring 58 releasably be set integratedly with respect to scraping board binding 47 (spring fixator 60), but this moment,, cause bigger waste even a certain side generation plastic deformation of plate spring sheet also needs to change spring members integral body.Relative therewith, when adopting said structure, can change the leaf spring 58 that plastic deformation takes place separately, therefore only need carry out minimal replacing, comparatively reasonable.
As mentioned above, adopt this printing equipment, with respect to scraping board binding 47 transverse leak-proof plate 50 is set rotationally, can not be subjected to the incline direction of scraper plate 46 and the restriction of angle, transverse leak-proof plate 50 (sliding contact surface 50a, 50b) is crimped on the mask sheet 4, thereby anti-paste suppressing agent laterally leak outside effectively.
And, can be as mentioned above, by the leaf spring 58 of the independent loading and unloading of the operation of screw rod 62 to transverse leak-proof plate 50 application of forces, therefore can carry out the aging in time replacing that waits the leaf spring 58 that causes easily and quickly, in addition, can take off leaf spring 58 as required separately and clear up, thereby have the advantage that can improve maintainability.
In addition, among this embodiment, the rotation direction both sides of transverse leak-proof plate 50 are provided with leaf spring 58 respectively, follow the rotation of transverse leak-proof plate 50, above-mentioned leaf spring 58 bendings, to transverse leak-proof plate 50 application of forces, but, also can use a shape spring members by its elastic force to transverse leak-proof plate 50 application of forces as Fig. 7, shown in Figure 8.
Particularly, scraping on the board binding 47, substituting leaf spring 58 and spring fixator 60 etc., be fixed with the axle shape spring members 70 that extends along the holder length direction.This spring members 70 for example is made of piano wire etc., as shown in Figure 8, be that the base portion bending is the L font parts at right angle, as shown in the drawing, base portion inserts and is arranged on the vertical hole 47c that scrapes on the board binding 47, and fix by screwing togather the screw rod 64 (hexagon ring screw rod) that inserts the fixator side, scrape on the board binding 47 thereby be installed in.In addition, the fixator end side of vertical hole 47c forms step portion 47b, and the vertical hole 47c side of this step portion 47b forms ditch 47d.And, embed this ditch 47d by bending part, thereby stop spring members 70 to rotate around vertical hole 47c with spring members 70.
On the other hand, on transverse leak-proof plate 50, substitute above-mentioned contact-making surface 52a, 52b, form recess 53 in upper surface portion (upper surface portion among Fig. 8).And the sidewall sections of this recess 53 forms breach 54, and the top ends of above-mentioned spring members 70 is inserted this breach 54.
In above-mentioned Fig. 7 and structure shown in Figure 8, during presswork, transverse leak-proof plate 50 is when scraping board binding 47 and rotate from above-mentioned neutral position, and spring members 70 engages with transverse leak-proof plate 50 and spring members 70 bendings (among Fig. 7 shown in two chain-dotted lines), utilizes the elastic force of this bending generation, sliding contact surface 50a, 50b pressure is attached on the mask sheet 4, simultaneously, presswork is finished, behind scraper plate 46 misplacings of stencil, utilize this elastic force of spring members 70, transverse leak-proof plate 34 returns the neutral position.And spring members 70 deforms etc. and when needing to change, only need unclamp screw rod 64, and behind vertical hole 47c plug replacement spring members 70, fastening screw 64 can make things convenient for and changes spring members 70 apace separately.
In addition, except that said structure, also can adopt and for example utilize helical spring elastic force, and can change this helical spring structure separately transverse leak-proof plate 50 application of forces.Importantly, so long as use spring members to transverse leak-proof plate 50 application of forces, and the structure that can dismantle this spring members separately all can be adopted.
Below the second embodiment of the present invention is described.
Fig. 9, Figure 10 have represented the concrete structure of the head 6 of the silk-screen printing device that second embodiment is related.Wherein, the basic structure of the silk-screen printing device that second embodiment is related is identical with first embodiment, therefore, annotates for identical part and to go up identical label, omits its explanation, below only difference is described.
In a second embodiment, the scraper component that comprises transverse leak-proof plate 50 45 as described below is installed on assembly installing component 38.
The transverse leak-proof plate 50 of second embodiment, shown in Figure 10～Figure 12, Figure 14 (b), be have with centre line L (as shown in figure 10) be the boundary from base portion to top ends (Figure 10 for from top to the bottom) approaching mutually symmetrical sliding contact surface 50a, 50b, certain thickness is arranged, (home base) the shape parts that are home base, to be positioned at middle body up and down on the above-mentioned centre line L be that fulcrum is rotatable is installed on the end face of scraping board binding 47 (can rotate around the axle that is positioned at X-direction) with it.
Particularly, have the flange 80a axle collar 80 of (being equivalent to flange part of the present invention) (being equivalent to cylindrical body of the present invention) and be fixed on above-mentioned length direction both ends of the surface of scraping board binding 47, thereby rotate the free above-mentioned axle collar 80 that is provided with (free) around the X-axis rotation by screw part 82 (being equivalent to axle main body of the present invention) pivot.So, on the both ends of the surface of the length direction of scraping board binding 47, be provided with to install and use axial region, so that transverse leak-proof plate 50 to be installed.
On the other hand, shown in Figure 12 and Figure 14 (b), on transverse leak-proof plate 50, the central authorities of its base portion form the recess 72 to the top ends depression.The inner bottom part of this recess 72 also form can the chimeric above-mentioned axle collar 80 outer peripheral face chimeric with recess 73.And, by should chimericly using the recess 73 and the above-mentioned axle collar 80 chimeric, particularly, by in the above-mentioned end face (main part that is equivalent to support portion involved in the present invention) of scraping board binding 47 and the part between the flange 80a, should be chimeric chimeric with the above-mentioned axle collar 80, make transverse leak-proof plate 50 shake possibly, promptly shake around the axle of above-mentioned screw part 82 integratedly and be installed in the above-mentioned end face of scraping board binding 47 possibly with the axle collar by the axle collar 80 and screw part 82 with recess 73.
The above-mentioned chimeric of transverse leak-proof plate 50 is from the shape of the diametric(al) sandwich axle collar 80 with recess 73.This is chimeric to adopt with recess 73, and the lateral parts of a certain side of the part of the clamping axle collar 80 is made of curved tabs 74 that can bending deflection on above-mentioned diametric(al), and the top of this curved tabs 74 is provided with the structure of the so-called C type hook of hook 74a (holding section).Adopt this structure, as after specifically as described in, can with the individual palpation mode with respect to the axle collar 80 from the direction of its direction of principal axis quadrature loading and unloading transverse leak-proof plate 50.
In addition, as Figure 11 and shown in Figure 12, the length direction two ends of scraping board binding 47 are separately installed with the confinement plate 84 of the swing range that is used to limit above-mentioned transverse leak-proof plate 50.This confinement plate 84 (to call restriction portion 84 in the following text), outstanding laterally from the end face of scraping board binding 47, get involved the above-mentioned recess 72 of above-mentioned transverse leak-proof plate 50, shaking when reaching a certain amount of of transverse leak-proof plate 50, medial surface 72a, the 72b of these confinement plate 84 butt recesses 72, thereby the shaking of limit lateral Antileaking plate 50.
In addition, among Fig. 9～Figure 12 etc., label 78 is for being arranged on the operating axis on the transverse leak-proof plate 50, as described later, when needing dismounting transverse leak-proof plate 50, hand-holdable this operating axis 78 and operating.
Adopt under the situation of the structure of second embodiment as mentioned above, when presswork, scraper plate 46 is set at the height and position that contacts with mask sheet 4, as shown in figure 13, transverse leak-proof plate 50 also rotates around screw part 82 according to the angle of attack of scraper plate 46, contacts closely with mask sheet 1 so that sliding contact surface 50a or 50b (being sliding contact surface 50b among this figure) are whole.Therefore, identical with first embodiment, can prevent laterally leaking outside of paste suppressing agent by transverse leak-proof plate 50, advance the expansion operation of paste conscientiously.
In addition, after a switching batch grade is finished the presswork of regulation number, take off the transverse leak-proof plate 50 of scraper plate 46 both sides and clear up, remove the paste that sticks on the scraper plate 46 simultaneously, at this moment, can carry out the loading and unloading of each transverse leak-proof plate 50 by following main points.
At first, affirmation is unclamped above-mentioned nut part 48 after head 6 is installed in the job position of regulation, takes off scraper component 45 from assembly installing component 38.
Then, the hand-held operating axis 78 that is arranged on the transverse leak-proof plate 50 rotates transverse leak-proof plate 50 around screw part 82.And after medial surface 72a or the 72b butt restriction portion 84, continue to rotate transverse leak-proof plate 50 by former direction from this position.So shown in Figure 14 (a), chimeric curved tabs 74 with recess 73 is crooked laterally, remove chimeric with the chimerism of recess 73 with respect to the axle collar 80.So can take off transverse leak-proof plate 50 from scraper component 45 in the individual palpation mode.
In addition, for taking off transverse leak-proof plate 50 by the operation of rotating around screw part 82, certainly, also hand-holdable operating axis 78 directly is pulled away from the axle collar 80 with transverse leak-proof plate 50 herein.But in the structure of above-mentioned transverse leak-proof plate 50, shown in Figure 12,14 (a), because the position of operating axis 78 and the butt position clamping of the restriction portion 84 on medial surface 72a and the 72b are chimeric with recess 73 (axle collar 80), and opposite side before and after being positioned at substantially, therefore rotate transverse leak-proof plate 50 as mentioned above and during dismounting, can be that fulcrum is realized leverage with the abutment portion of medial surface 72a and 72b and restriction portion 84, thereby can easily take off transverse leak-proof plate 50 with less power.
And, after having cleared up the transverse leak-proof plate 50 that takes off, shown in Figure 14 (b), the position between the end face of scraping board binding 47 and flange 80a, make transverse leak-proof plate 50 near the axle collar 80 with the direction (being downside in the legend) with the axle collar 80 quadratures, it is above-mentioned chimeric with in the recess 73 that the axle collar 80 is inserted.Like this, curved tabs 74 is crooked laterally, and the axle collar 80 inserts chimeric with in the recess 73 simultaneously.And the axle collar 80 is when being inserted to chimeric position with recess 73 bottom butts, and curved tabs 74 is restored, and forms the state of above-mentioned hook 74a from the outside engaging of the axle collar 80, and transverse leak-proof plate 50 stably is positioned to scrape the end face of board binding 47 and the position between the flange 80a.So installation of transverse leak-proof plate 50.
In addition, when taking off transverse leak-proof plate 50, owing to be stained with paste on the transverse leak-proof plate 50, for avoiding moving of paste, hand-held axle 78 carries out operation, but does not have this necessity when installing, and any part that can hand transverse leak-proof plate 50 carries out operation.
As mentioned above, adopt the silk-screen printing device (silk-screen printing device that mounting structure was suitable for of transverse leak-proof plate of the present invention) of second embodiment, need not tool using etc., can carry out the loading and unloading of transverse leak-proof plate 50 in the individual palpation mode, therefore, can extremely make things convenient for and carry out apace the cleaning of scraper plate 46 and transverse leak-proof plate 50.Therefore, can effectively shorten the prune job time of scraper plate 46 grades when switching batch, thereby can boost productivity.
In addition, also can adopt following structure among this second embodiment.
(1) in an embodiment, as the mounting structure of transverse leak-proof plate 50 with respect to scraper plate 47, the axle collar 80 (being the installation axial region of transverse leak-proof plate 50) pivot is fixed on the end face of scraping board binding 47, on transverse leak-proof plate 50, be provided with removably chimeric with recess 73 with respect to the axle collar 80, also can adopt opposite configuration, promptly be provided with to install and use axial region, can be embedded in chimeric the use recess of this installation scraping board binding 47 side settings with axial region in transverse leak-proof plate 50 sides.
(2) in an embodiment, about the chimeric structure with recess 73 of transverse leak-proof plate 50, only constitute the lateral parts of a certain side in the part of the clamping axle collar 80 by curved tabs 74, certainly, also can constitute the lateral parts of opposite side by same curved tabs, by the pair of curved sheet clamping axle collar 80.In addition, the relation of (chimeric part with recess 73) material because transverse leak-proof plate 50 also can not be provided with curved tabs 74 and releasably during the clamping axle collar 80, also can omit curved tabs 74.Importantly, chimericly can make transverse leak-proof plate 50 releasably chimeric as long as guarantee with respect to the axle collar 80 with recess 73.
(3) in an embodiment, in order to rotate transverse leak-proof plate 50 more glibly, by screw part 82 axle collar 80 pivots are fixed on the end face of scraping board binding 47, transverse leak-proof plate 50 is entrenched on this axle collar 80, also can for example shaft portion be set at the end face of scraping board binding 47, transverse leak-proof plate 50 directly is entrenched on this shaft portion with trip embedding state, thereby transverse leak-proof plate 50 rotated to be installed in possibly to be scraped on the board binding 47.
The invention of (4) second embodiment, be provided with possibly the silk-screen printing device of scraper plate 46 types except that rotating as mentioned above, also liftably be assemblied in head, be used alternatingly above-mentioned a pair of scraper plate expansion paste type silk-screen printing device when moving back and forth head applicable to a pair of scraper plate that incline direction is different.At this moment, also can for example scrape the installation axial region that above-below direction is set on the board binding, on the length direction of scraper plate, load and unload the transverse leak-proof plate with respect to scraping board binding.
In addition, in the various embodiments described above, it is the scope of operation (promptly being used to expand the face of paste) that applies the present invention to scraper plate 46 and the silk-screen printing device of the radius of gyration direction orthogonal type of scraper plate 46, certainly also can be as shown in the patent documentation 1 of background technology, be applied to the scope of operation of scraper plate 31 and scraper plate 31 radius of gyration direction almost parallel the silk-screen printing device of scraper plate is set.
Claims (8)
1. silk-screen printing device, on the head that moves back and forth relatively along the mask sheet that overlaps on the circuit board, along with the direction of the moving direction quadrature of this head, can the elongate scraper plate be set rotationally around the back shaft parallel with its length direction, it is characterized in that
Has the above-mentioned scraper plate support component of support, on this support component, be provided for stoping the transverse leak-proof plate of paste to the two ends of the length direction of scraper plate flows outside, this transverse leak-proof plate, with the direction of above-mentioned back shaft quadrature on, with respect to scraper plate displacement relatively, by the elastic force that is installed in the spring members on above-mentioned support component or the transverse leak-proof plate aforementioned mask sheet is pushed simultaneously, above-mentioned spring members is mounted portion with respect to it and can loads and unloads separately.
2. silk-screen printing device according to claim 1 is characterized in that:
By above-mentioned scraper plate is fixed on the above-mentioned support component, above-mentioned support component is arranged to and can be rotated around above-mentioned back shaft, make the incline direction and the angle of above-mentioned scraper plate, can follow the rotation of this support component and change,
By the rotatable earth's axis of above-mentioned transverse leak-proof plate is supported on the above-mentioned support component, as a pair of leaf spring of above-mentioned spring members setting from rotation direction both sides this transverse leak-proof plate of difference butt of transverse leak-proof plate, above-mentioned leaf spring follows the transverse leak-proof plate with respect to the rotation of above-mentioned support component and produce bending, so that above-mentioned transverse leak-proof plate extruding mask sheet, these leaf springs directly are fixed on the above-mentioned support component by screw part.
3. the mounting structure of a transverse leak-proof plate, on the head that moves back and forth relatively along mask sheet, along direction the elongate scraper plate is set with the moving direction quadrature of this head, be provided with in the mounting structure of transverse leak-proof plate of the silk-screen printing device that stops the transverse leak-proof plate that paste leaks outside at the length direction two ends of this scraper plate, it is characterized in that:
Any one party of the support portion of above-mentioned scraper plate and transverse leak-proof plate is provided with to install uses axial region, be provided with the releasably chimeric recess of using of chimeric above-mentioned axial region the opposing party, by above-mentioned chimeric, above-mentioned transverse leak-proof plate is installed on above-mentioned support portion with the chimeric above-mentioned axial region of recess.
4. the mounting structure of transverse leak-proof plate according to claim 3 is characterized in that:
The above-mentioned chimeric recess of using, this axial region of diametric(al) sandwich from above-mentioned axial region, and at least one side of this retained part is by constituting in the curved tabs of the enterprising line bend displacement of the diametric(al) of above-mentioned axial region, and the top of above-mentioned curved tabs is provided with the holding section that can engage with above-mentioned axial region.
5. the mounting structure of transverse leak-proof plate according to claim 3 is characterized in that:
The top of above-mentioned axial region is provided with flange part, and the above-mentioned chimeric recess of using is provided with a side the main part of above-mentioned axial region and the position between the above-mentioned flange part in above-mentioned support portion and transverse leak-proof plate, chimeric with above-mentioned axial region.
6. the mounting structure of transverse leak-proof plate according to claim 3 is characterized in that:
Above-mentioned chimericly be arranged in the above-mentioned transverse leak-proof plate with recess, above-mentioned axial region is arranged on the above-mentioned support portion.
7. silk-screen printing device,
On the head that moves back and forth relatively along mask sheet, along direction the elongate scraper plate is set with the moving direction quadrature of this head, the transverse leak-proof plate that stops paste to leak outside is set at the length direction two ends of this scraper plate, it is characterized in that:
Above-mentioned transverse leak-proof plate by each described mounting structure in the claim 3 to 6, is installed on the support portion of supporting above-mentioned scraper plate.
8. silk-screen printing device according to claim 7 is characterized in that:
Above-mentioned scraper plate is supported on the above-mentioned support portion rotationally, so that above-mentioned scraper plate is forward-lean state with respect to direct of travel respectively when above-mentioned head moves back and forth,
The end face of above-mentioned support portion is provided with the axial region that extends along the length direction of above-mentioned scraper plate, this axial region comprises axle main body that is fixed on the above-mentioned head and the cylindrical body that is installed on this main body, above-mentioned chimeric with recess and chimeric above-mentioned cylindrical body, so that can above-mentioned transverse leak-proof plate joltily be installed around above-mentioned axle main body.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005-284621 | 2005-09-29 | ||
| JP2005284621A JP4627238B2 (en) | 2005-09-29 | 2005-09-29 | Screen printing device |
| JP2005284621 | 2005-09-29 | ||
| JP2005336233A JP4699183B2 (en) | 2005-11-21 | 2005-11-21 | Side leakage prevention plate mounting structure and screen printing device |
| JP2005336233 | 2005-11-21 | ||
| JP2005-336233 | 2005-11-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1939718A true CN1939718A (en) | 2007-04-04 |
| CN1939718B CN1939718B (en) | 2010-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101419130A Active CN1939718B (en) | 2005-09-29 | 2006-09-29 | Mounting structure of transverse leak-proof and silk screen printing device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4627238B2 (en) |
| CN (1) | CN1939718B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850651A (en) * | 2009-03-31 | 2010-10-06 | 索尼公司 | Silk-screen printing device and scraping plate mechanism |
| CN102336051A (en) * | 2011-08-11 | 2012-02-01 | 南昌大学 | Screen printing device for solar batteries |
| CN105128509A (en) * | 2014-05-26 | 2015-12-09 | 松下知识产权经营株式会社 | Screen printing apparatus |
| CN112004682A (en) * | 2018-04-27 | 2020-11-27 | 松下知识产权经营株式会社 | Screen printing apparatus |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2521591A (en) * | 2013-10-27 | 2015-07-01 | Asm Assembly Systems Switzerland Gmbh | Print head |
| CN117360056A (en) * | 2022-06-30 | 2024-01-09 | 伊利诺斯工具制品有限公司 | Scraping and sweeping assembly for stencil printer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02115439U (en) * | 1989-03-06 | 1990-09-14 | ||
| JPH09314799A (en) * | 1996-05-30 | 1997-12-09 | Matsushita Electric Ind Co Ltd | Screen process printing and screen process printing device |
| JPH10323964A (en) * | 1997-05-28 | 1998-12-08 | Sony Corp | Screen printing device |
| JP2004034638A (en) * | 2002-07-08 | 2004-02-05 | Matsushita Electric Ind Co Ltd | Screen printing equipment |
| JP4437723B2 (en) * | 2004-09-03 | 2010-03-24 | ヤマハ発動機株式会社 | Screen printing device |
-
2005
- 2005-09-29 JP JP2005284621A patent/JP4627238B2/en active Active
-
2006
- 2006-09-29 CN CN2006101419130A patent/CN1939718B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850651A (en) * | 2009-03-31 | 2010-10-06 | 索尼公司 | Silk-screen printing device and scraping plate mechanism |
| CN101850651B (en) * | 2009-03-31 | 2012-07-04 | 索尼公司 | Screen printing apparatus and squeegee mechanism |
| CN102336051A (en) * | 2011-08-11 | 2012-02-01 | 南昌大学 | Screen printing device for solar batteries |
| CN105128509A (en) * | 2014-05-26 | 2015-12-09 | 松下知识产权经营株式会社 | Screen printing apparatus |
| CN112004682A (en) * | 2018-04-27 | 2020-11-27 | 松下知识产权经营株式会社 | Screen printing apparatus |
| US11285713B2 (en) | 2018-04-27 | 2022-03-29 | Panasonic Intellectual Property Management Co., Ltd. | Screen printing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1939718B (en) | 2010-04-21 |
| JP2007090722A (en) | 2007-04-12 |
| JP4627238B2 (en) | 2011-02-09 |
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