CN202895884U

CN202895884U - Screen printer

Info

Publication number: CN202895884U
Application number: CN 201220511291
Authority: CN
Inventors: 友松道范; 村上俊行; 村上稔; 前田亮
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 2011-10-07
Filing date: 2012-10-08
Publication date: 2013-04-24
Anticipated expiration: 2022-10-08
Also published as: JP5974264B2; JP2013082101A

Abstract

The utility model provides a screen printer. The cleaning surface of a mask cleaner and a mask main body can be sufficiently closed, and the performance of removing paste from the mask cleaner is prevented from being reduced. The mask main body (13c) are pressed from above in a state that the mask cleaner (19) is positioned below a mask (13), so that the lower part of the mask main body (13c) is pressed on the cleaning surface (19a) of the mask cleaner (19); and the mask cleaner (19) moves relative to the mask main body (13c) in the state, so that the paste (Pt) attached to the lower part of the mask main body (13c) is removed.

Description

Screen process press

Technical field

The utility model relates to the screen process press via mask printing paste on substrate.

Background technology

At present, as the device of the cream such as print solder on the electrode of substrate, known have a screen process press.This screen process press possesses: have at the framework that keeps with fixing state with respect to base station and the mask that consists of in the tabular mask main body of installing via the sheet component of resin (for example polyester) system on the framework, sliding with the mask main body that contacts above the substrate and will supply to the scraper plate that cream on the mask main body is transferred to the electrode on the substrate via the peristome of being located at the mask main body.

In this screen process press, when substrate is carried out the serigraphy operation, because being attached to the impact of the following cream of mask main body, bad phenomenon might occur in printing state, therefore, possess cleaning surface is relatively moved with respect to mask with the mask cleaner that contacts below of mask main body, remove the mask cleaning device of the following cream that is attached to mask.In this mask cleaning device, the mask cleaner moves in the mode that rises with respect to mask, from below jack-up on the mask main body, make cleaning surface and mask main body below be close to (for example patent documentation 1).

Patent documentation 1:(Japan) Unexamined Patent 11-179883 communique

But, in above-mentioned existing screen process press, adaptation between cleaning surface and the mask main body is subjected to about the tension force of mask, under the state that the access times of mask increase and the tension force of sheet component reduces, even with cleaning surface press on the mask main body below, can not guarantee the enough adaptations between cleaning surface and the mask main body, have the removing that performance reduces of cream of mask cleaner and substrate may produce the bad problem points of quality.

The utility model content

So the utility model provides a kind of enough adaptations that can guarantee between mask cleaner and cleaning surface and the mask main body, and prevent the screen process press of removing reduction of performance of the cream of mask cleaner.

First aspect provides a kind of screen process press, and it possesses: mask, and it has the framework that keeps with fixing state with respect to base station and is installed on the tabular mask main body on the framework and consists of via sheet component; Scraper plate, it is transferred to substrate sliding with the mask main body that contacts above the substrate with the cream that supplies on the mask main body; The mask cleaner, it makes cleaning surface towards the top; The mask press device, its make the mask cleaner be positioned at mask below state under from above press the mask main body, will press on the cleaning surface of mask cleaner below the mask main body; Cleaner travel mechanism, it makes the mask cleaner relatively move with respect to the mask main body utilizing the mask press device with pressing on below the mask main body under the state of cleaning surface of mask cleaner, removes the following cream that is attached to the mask main body.

In the utility model, press the mask main body from the top, the cleaning surface of mask cleaner will be pressed on below the mask main body, do not depend on mask tension force state how, can guarantee the cleaning surface of mask cleaner and the enough adaptations between the mask main body, therefore, can prevent the mask cleaner cream remove reduction of performance, thus, can suppress the bad generation of press quality.

Description of drawings

Fig. 1 is the stereogram of major part of the screen process press of the utility model one embodiment;

Fig. 2 is the side view of major part of the screen process press of the utility model one embodiment;

Fig. 3 (a) is the mask holder that possesses of the screen process press of the utility model one embodiment and the plane that remains in the mask of mask holder, and Fig. 3 (b) is its part sectioned view;

Fig. 4 is the flow chart of execution sequence of serigraphy operation of the screen process press of expression the utility model one embodiment;

Fig. 5 (a) and (b) are key diagrams of execution sequence of serigraphy operation of the screen process press of the utility model one embodiment;

Fig. 6 (a) and (b) are key diagrams of execution sequence of serigraphy operation of the screen process press of the utility model one embodiment;

Fig. 7 (a) and (b) are key diagrams of execution sequence of serigraphy operation of the screen process press of the utility model one embodiment;

Fig. 8 is the flow chart of execution sequence of washing and cleaning operation of mask of the screen process press of expression the utility model one embodiment;

Fig. 9 (a) ~ (d) is the figure of execution sequence of washing and cleaning operation of mask of the screen process press of expression the utility model one embodiment.

Symbol description

1: screen process press

2: substrate

11: base station

13: mask

13a: framework

13b: sheet component

13c: mask main body

16: mask press section (mask press device)

19: the mask cleaner

19a: cleaning surface

19M: cleaner travel mechanism

33b: scraper plate

Pt: cream

The specific embodiment

Below, with reference to description of drawings embodiment of the present utility model.Among Fig. 1 and Fig. 2, a plurality of electrodes 3 that 1 pair of screen process press is located on the substrate 2 are carried out respectively the operation (serigraphy operation) of the cream Pt of serigraphy scolding tin etc., and possess: base station 11, be fixedly installed on the mask holder 12 of the top of base station 11, remain the mask 13 that the serigraphy of flat-hand position is used by mask holder 12, the substrate of being located on the base station 11 keeps assembly travel mechanism 14, the substrate that keeps assembly travel mechanism 14 to move by substrate below mask 13 keeps assembly 15, be located at four mask press sections 16 on the mask holder 12, be located at the scraper head 17 of the top of mask 13, be located at the camera assembly 18 that substrate keeps the zone between assembly 15 and the mask 13, carry out the control device 20 of the action control of mask cleaner 19 and these each several parts.

Among Fig. 1 and Fig. 3 (a), mask holder 12 by above base station 11 along the direction (X-direction) in the horizontal plane extend and a pair of beam parts 12a that is fixedly installed with respect to base station 11 and along with the horizontal plane of these beam parts 12a quadrature in direction (Y direction) extend and be that the pair of tracks shape parts 12b of L word shape consists of by the cross section of a pair of beam parts 12a supporting.

In Fig. 3 (a) and (b), mask 13 has rectangular box-like framework 13a and is installed on the tabular mask main body 13c of framework 13a and consists of via the sheet component 13b of resin (for example polyester) system.Mask main body 13c is made of the metallic plate of thin-walled, and a plurality of peristome 13h arrange with the configuration corresponding with the configuration of electrode 3 on the substrate 2.

The periphery of sheet component 13b (four limits) is by framework 13a supporting, and the periphery of mask main body 13c (four limits) is supported by sheet component 13b.As from Fig. 3 (a) to shown in the Fig. 3 (b) that looks the part sectioned view that V-V observes, the sheet component 13b of mask 13 utilize bonding agent BD be adhered to framework 13a below.

When mask 13 is installed on mask holder 12, the side (it be made as the place ahead of screen process press 1) of mask 13 from the direction (Y direction) of the extension of rail-like parts 12b is inserted into pair of tracks shape parts 12b, utilizes the both sides relative with X-direction in four limits of pair of tracks shape parts 12b supporting frame 13a of mask holder 12.

At this, mask holder 12 is fixedly installed on the base station 11, therefore, has installed in mask holder 12 under the state of mask 13, and framework 13a remains on the base station 11 with fixing state.

Among Fig. 1, the pair of horns position on substrate 2 is provided with two substrate-side mark 2m, on mask main body 13c, is provided with accordingly two mask side mark 13m(also with reference to Fig. 3 (a) with these two substrate-side mark 2m).Make under two substrate-side mark 2m and two the mask side mark 13m state unanimous between the higher and lower levels, when substrate 2 was contacted with mask 13, the electrode 3 of substrate 2 became consistent state with the peristome 13h that is located at mask main body 13c.

Substrate keeps assembly travel mechanism 14 to be made of the XYZ robot, as shown in Figures 1 and 2, substrate keeps assembly 15 by utilizing substrate to keep assembly travel mechanism 14 to carry out the assembly matrix 21 of the movement of the movement (also comprising the rotation in the horizontal plane) of the direction of (in the XY face) in horizontal plane and above-below direction (establishing Z-direction), be installed on the assembly matrix 21 and along a pair of conveyer belt 22 of X-direction carrying substrate 2, be located at the lower receiving portion lift cylinders 23 of assembly matrix 21, carry out the lower receiving portion 24 of lifting and open and close a pair of clamping part 25 that arranges freely in Y direction consisting of by lower receiving portion lift cylinders 23.

A pair of conveyer belt 22 carries out the conveying of the direction (X-direction) of substrate 2 in the horizontal plane and to the location of regulation job position (position shown in Figure 1).Lower receiving portion 24 is carried out lifting by lower receiving portion lift cylinders 23, and so that be positioned the two ends of the substrate 2 of job position and leave conveyer belt 22 and support from below jack-up supporting substrates 2 to the mode of top, a pair of clamping part 25 is from Y direction clamping (clamping) and keep both sides by the substrate 2 of lower receiving portion 24 jack-up supporting.

Among Fig. 1 and Fig. 2, mask press section 16 respectively arranges one at two beam parts 12a both ends separately that consist of mask holder 12, each mask press section 16 by the vertical pillar 16a that is located at the end of beam parts 12a, with respect to pillar 16a in horizontal plane, rotate the telescopic arm 16b that arranges freely, from the end of telescopic arm 16b extend downwards arrange and below the cylinder 16c that stretches consist of.

Each mask press section 16 can make cylinder 16c mobile within the specific limits by the combination with respect to the expanding-contracting action of the spinning movement in the horizontal plane of telescopic arm 16b of pillar 16a and telescopic arm 16b, thus, cylinder 16c is positioned at be set in four jiaos of mask main body 13c press position 13R(Fig. 1 and Fig. 3) one directly over.And, substrate 2 be arranged at mask 13 below state under, by each the cylinder 16c that makes four mask press sections 16 be positioned at four of mask main body 13c press position 13R directly over and make each cylinder 16c downwards outstanding (elongation), utilize four cylinder 16c to press four of mask main body 13c downwards and press position 13R, can make top contact the (being close to) of the following and substrate 2 of mask main body 13c.

Among Fig. 1 and Fig. 2, scraper head 17 possesses tabular mobile matrix 31, be installed on two the scraping plate lifting cylinders 32 on the mobile matrix 31 and two scraper components 33 that move up and down below mobile matrix 31 by the action of two scraping plate lifting cylinders 32 consist of.The mobile matrix 31 of scraper head 17 utilizes the 34(Fig. 2 of scraper head travel mechanism that is made of not shown actuator etc.) move back and forth in Y direction with respect to mask 13.

Among Fig. 1 and Fig. 2, each scraper component 33 upward and along X-direction the scraper stent 33a that extends and the scraper plate 33b that is made of thin-plate member that is installed on the scraper stent 33a is made of the piston rod 32a that is installed on scraping plate lifting cylinder 32.The piston rod 32a of each scraper component 33 by scraping plate lifting cylinder 32 downwards expanding-contracting action and below mobile matrix 31, carry out lifting, but because the relative position of the above-below direction of mask 13 and mobile matrix 31 does not change, therefore, by each scraper component 33 is descended with respect to mobile matrix 31, can make scraper plate 33b from top butt mask 13.

Among Fig. 1 and Fig. 2, camera assembly 18 possesses to make to be taken the visual field towards the below of below shooting camera 18a and the shooting visual field is formed towards the top of top shooting camera 18b.Camera assembly 18 utilizes the 18M(Fig. 2 of camera movement mechanism that is made of not shown actuator etc.) keep the zone between assembly 15 and the mask 13 to move along direction in the horizontal plane at substrate.

Among Fig. 1 and Fig. 2, mask cleaner 19 is seeing that along the direction (Y direction) parallel with mask 13 and the mobile plane that arranges freely of above-below direction (Z-direction) cross section is that the upper end of the spray nozzle part 41 that consists of of rectangular-shaped cartridge hangs paper parts 42 and forms.The part of upper end that hang on the spray nozzle part 41 of paper parts 42 becomes the cleaning surface 19a of residue that with following contact of mask main body 13c wiping is attached to the following cream Pt of mask main body 13c.That is, mask cleaner 19 so that cleaning surface 19a towards the state setting of top.

Mask cleaner 19 can carry out movement and the up and down movement of direction of direction in the plane, make under the state of paper parts 42 below pressing on mask main body 13c by the upper end that utilizes spray nozzle part 41 and to move along Y direction, wiping is attached to the following cream Pt of mask main body 13c.The cleaning surface 19a of paper parts 42 can upgrade by batching paper parts 42 by pair of rolls parts 43.

Among Fig. 2, in spray nozzle part 41, be provided with not shown air intake pipeline, by via the cleaning surface 19a of paper parts 42 air amount in the air intake pipeline, can effectively carry out the wiping of cream Pt by paper parts 42.

Substrate keeps substrate 2 that the conveyer belt 22 of assembly 15 carries out to carrying and the location action of job position, lower receiving portion 24 are carried out with respect under the substrate 2 that is positioned at job position, bearing the clamping action that action and a pair of clamping part 25 carry out, by 20 pairs of control device, comprises substrate holding mechanism 15M(Fig. 2 of formation such as actuator of above-mentioned lower receiving portion lift cylinders 23) action control carry out, keep shift action that the substrate of substrate 2 keeps direction and above-below direction in the horizontal plane of assembly 15 to be undertaken by the action control of 20 pairs of above-mentioned substrates maintenance assembly travel mechanisms 14 of control device.

The telescopic arm 16b of each mask press section 16 with respect to the expanding-contracting action downwards of the expanding-contracting action of the spinning movement of pillar 16a, telescopic arm 16b and cylinder 16c by 20 couples of mask press section driving mechanism 16M(Fig. 2 that consisted of by not shown actuator of control device) action control carry out.In addition, four cylinder 16c expanding-contracting action while (synchronously) downwards carries out.

Scraper head 17(moves matrix 31) carry out to the action control of action by 20 pairs of above-mentioned scraper head travel mechanisms 34 of control device that move back and forth of Y direction, (at this for scraper plate 33b's) of each scraper component 33 carries out with respect to the lifting action of mobile matrix 31 action control by 20 pairs of two scraping plate lifting cylinders 32 of control device.

The shift action of camera assembly 18 in horizontal plane undertaken by the action control of 20 couples of above-mentioned 18M of camera movement mechanism of control device.The control of the shooting action that the control of the shooting action that below shooting camera 18a carries out and top shooting camera 18b carry out is undertaken by control device 20 respectively, take view data that the shooting action of camera 18a obtains and take the view data that the shooting action of camera 18b obtains by the top by the below and be sent to respectively control device 20, at 20a(Fig. 2 of image recognition section of control device 20) carry out image recognition processing.

Travel mechanism in the horizontal plane of mask cleaner 19 and travel mechanism (18M of the camera movement mechanism) dual-purpose of camera assembly 18, mask cleaner 19 shift action of direction in the horizontal plane is undertaken by the action control that control device 20 contrasts camera movement mechanism 18M.Mask cleaner 19 is 19M(Fig. 2 of cleaner travel mechanism that batches action and be made of not shown actuator etc. by 20 pairs of control device via the suction action of the cream Pt of paper parts 42 of the shift action of direction and paper parts 42 up and down) action control carry out.

The execution sequence of the serigraphy operation (method for printing screen) of secondly, carrying out at the basis explanation screen process press 1 of the key diagram of the flow chart of Fig. 4 and Fig. 5～Fig. 7.The control device 20 of screen process press 1 is after detecting substrate 2 other device from the upstream side of being located at screen process press 1 and waiting (not shown) to be sent, make substrate keep conveyer belt 22 actions of assembly 15, in screen process press 1, move into substrate 2, (step ST1 shown in Figure 4), then carry out the action control of substrate holding mechanism 15M, keep substrate 2(Fig. 5 (a), step ST2 shown in Figure 4).

At this, the maintenance of substrate 2 is particularly undertaken by following action, namely, by receiving portion 24 under lower receiving portion lift cylinders 23 jack-up, substrate 2 is risen to the state (arrow A shown in Fig. 5 (a)) that floats from conveyer belt 22, simultaneously, it is driven the two ends of clamping substrate 2 (arrow B shown in Fig. 5 (a)) to the direction of closing a pair of clamping part 25.

If keep substrate 2, then control device 20 carries out the action control of the 18M of camera movement mechanism, make the below take camera 18a be positioned at the substrate-side mark 2m that is arranged on the substrate 2 directly over after, make the below take camera 18a and carry out the shooting of substrate-side mark 2m, hold the position of substrate 2 according to this view data, simultaneously, make the top take camera 18b be positioned at the mask side mark 13m that is arranged on the mask main body 13c under after, make the top take camera 18b and carry out the shooting of mask side mark 13m, hold the position of mask 13 according to this view data.And, make substrate keep assembly 15 direction in horizontal plane to move, make substrate-side mark 2m relative up and down with mask side mark 13m, carry out substrate 2 with respect to the contraposition (step ST3 shown in Figure 4) of direction in the horizontal plane of mask 13.

Like this, in the present embodiment, above-mentioned steps ST3 is for arranging the operation of substrate 2 below mask 13.

Control device 20 is after finishing the contraposition of substrate 2 with respect to mask 13, carry out substrate and keep the action control of assembly travel mechanism 14, make substrate keep assembly 15 to rise (arrow C 1 shown in Fig. 5 (b)) with respect to base station 11, top (and a pair of clamping part 25 is top) that makes substrate 2 from the below near below the mask main body 13c.Thus, the top and mask main body 13c of substrate 2 below become approaching state (Fig. 5 (b), step ST4 shown in Figure 4).

If in step ST4, make above the substrate 2 from below near below the mask main body 13c, then control device 20 is positioned at each cylinder 16c of four mask press sections 16 to be set in after above-mentioned four tops of pressing position 13R on the mask main body 13c, make the cylinder 16c elongation of four mask press sections 16, mask main body 13c is pressed downwards (the arrow D1 shown in Fig. 6 (a)), mask main body 13c is pressed on the top and with it contact (Fig. 6 (a), step ST5 shown in Figure 4) of the substrate 2 that remains on the substrate maintenance assembly 15.Thus, the electrode 3 on the substrate 2 and the peristome 13h of mask 13 are consistent, and substrate 2 and mask 13 become with enough states that degree of fixation interfixes of being close to.In addition, at this moment, for mask 13 is pressed on cylinder 16c that substrate 2 makes four mask press sections 16 downwards the data of outstanding distance by pre-stored storage part 20b(Fig. 2 that is possessed in control device 20).

In addition, as mentioned above, the cylinder 16c of four mask press sections 16 can be mobile in certain scope respectively, therefore, make the big or small change of mask 13 according to the size of the substrate 2 of the object that becomes the serigraphy operation, change even be set in the position of pressing position 13R of mask main body 13c, also can make mask main body 13c contact (being close to) with substrate 2 reliably by four mask press sections 16.

If control device 20 makes substrate 2 contact with mask 13, then be connected the display unit 50(Fig. 2 that arranges with control device 20) show the message (step ST6 shown in Figure 4) of the supply of promotion cream Pt.Relative with it, the visual cream Pt that residues at present on the mask 13 of operator carries out whether should carrying out the judgement of the supply (replenishing) of cream Pt based on the amount of this cream Pt.And, be judged as carry out the supply of cream Pt the time, utilize the cream of preparing in addition to supply with the supply that syringe (not shown) carries out cream Pt on the mask 13.And if the supply of cream Pt finishes, button 51(Fig. 2 is restarted in the action of then carrying out being connected with control device 20) operation.Be judged to be as the operator in the situation of the supply that does not need to carry out cream Pt, move the operation of restarting button 51.

In step ST6 after display unit 50 shows the message of the supply that promotes cream Pt, whether control device 20 moves the judgement (step ST7 shown in Figure 4) of the operation of restarting button 51 within a certain period of time, and when detecting the operator based on the signal output of restarting button 51 from action and carried out action and restart the operation of button 51, scraper head 17 is positioned at after one the top of a pair of clamping part 25, make the side decline (arrow E 1 shown in Fig. 6 (b)) among two scraper plate 33b, make the lower end of this scraper plate 33b be connected to top (Fig. 6 (b), the step ST8 shown in Figure 4) of the mask 13 that contacts with clamping part 25.

In addition, (with mask 13 butts) the scraper plate 33b that descends this moment make scraper head 17 be positioned at the front side clamping part 25 above the time be the scraper plate 33b of front side, make scraper head 17 be positioned at rear side clamping part 25 above the time be the scraper plate 33b of rear side.

Above the mask 13 that if the action of control device 20 by scraping plate lifting cylinder 32 is connected to scraper plate 33b to be contacted with clamping part 25, then under keeping the state that makes above the scraper plate 33b butt mask 13, making scraper head 17(is scraper plate 33b) move (the arrow F shown in Fig. 6 (b)) with respect to mask 13 along Y direction, at mask 13 scraper plate 33b is slided, thus, the cream Pt that supplies on the mask 13 is pressed in the peristome 13h of mask 13, with cream Pt transfer printing (step ST9 shown in Figure 4) on electrode 3.

Like this, in the present embodiment, scraper plate 33b is being for to slide with the mask main body 13c that contacts above the substrate 2, is transferred to structure on the substrate 2 with supplying to cream Pt on the mask main body 13c.

In this step ST9, control device 20 make the scraper plate 33b that is connected on the mask 13 that contacts with a clamping part 25 by with mask 13 that substrate 2 contacts on the zone, and move to zone on the mask 13 that contacts with another clamping part 25.In addition, the scraper plate 33b that Fig. 6 (b) expression makes the front side from mask 13 that the clamping part 25 of front side contacts on the zone move to the example in the zone on the mask 13 that contacts with the clamping part 25 of rear side, but, the scraper plate 33b that makes rear side from mask 13 that the clamping part 25 of rear side contacts on the zone move in the situation in the zone on the mask 13 that contacts with the clamping part 25 of front side, scraper head 17 moves to the direction opposite with arrow F shown in Fig. 6 (b).

If control device 20 detect scraper plate 33b from mask 13 that a clamping part 25 contacts on the zone arrive to mask 13 that another clamping part 25 contact on regional and finish the transfer printing of cream Pt, then stop the movement of scraper head 17, afterwards, make the scraper plate 33b that is connected to mask 13 with respect to mobile matrix 31 risings (arrow E 2 shown in Fig. 7 (a)), make scraper plate 33b leave mask 13(Fig. 7 (a), step ST10 shown in Figure 4).

If control device 20 makes scraper plate 33b leave mask 13, then make the cylinder 16c rising (the arrow D2 shown in Fig. 7 (a)) of four mask press sections 16, by making mask 13 leave substrate 2, make substrate 2 from mask 13 misplacings of stencil (Fig. 7 (a), step ST11 shown in Figure 4).

If control device 20 finishes misplacing of stencil, then make substrate keep 14 actions of assembly travel mechanism, make substrate keep assembly 15 to descend, thus, make the further away from each other arrow C 2 shown in mask 13(Fig. 7 (b) of substrate 2, step ST12 shown in Figure 4).And, make substrate holding mechanism 15M action, open a pair of clamping part 25 after, lower receiving portion 24 is descended, the two ends of substrate 2 are dropped on a pair of conveyer belt 22.Thus, become the state (with reference to Fig. 2, step S T13 shown in Figure 4) that substrate keeps the maintenance of the substrate 2 that assembly 15 carries out of having removed.

If control device 20 is removed the maintenance of substrate 2, then make substrate keep 14 actions of assembly travel mechanism, make substrate keep assembly 15 mobile in horizontal plane, after adjusting the direction of conveyer belt 22, make conveyer belt 22 actions, substrate 2 is taken out of the outside (step ST14 shown in Figure 4) of screen process press 1.

If take out of substrate 2, then whether control device 20 has the judgement (step ST15 shown in Figure 4) of substrate 2 of other enforcement serigraphy.Consequently, in the situation of the substrate 2 of the enforcement serigraphy that other are arranged, return step ST1, carry out moving into of new substrate 2, in the situation of the substrate 2 of the enforcement serigraphy that does not have other, finish a series of serigraphy operation.

Screen process press 1 carries out the serigraphy operation of every a slice of substrate 2 by said sequence, but open at logarithm～when the substrate 2 of tens (tens of) carries out such presswork, may be because of the residue of the following cream Pt(cream Pt that is attached to mask main body 13c) printing state generation unfavorable condition.Therefore, in the screen process press 1 of present embodiment, regularly carry out the washing and cleaning operation of the mask 13 that uses mask cleaner 19, use that the key diagram of the flow chart of Fig. 8 and Fig. 9 is following to carry out its explanation.

Control device 20 is when the cleaning of the mask 13 that uses mask cleaner 19, at first, carry out the action control of the 18M of camera movement mechanism and the 19M of cleaner travel mechanism, make mask cleaner 19 be positioned at position (step ST21 shown in Figure 8, Fig. 9 (a)) near the mask 13 of the below of mask 13.And, control device 20 each the cylinder 16c that makes four mask press sections 16 be positioned at four of being set on the mask main body 13c press position 13R above after, make the cylinder 16c elongation of four mask press sections 16, mask main body 13c is pressed downwards (the arrow D3 shown in Fig. 9 (b)), below mask main body 13c, press on the cleaning surface 19a of mask cleaner 19 and make it to be in contact with it (step ST22 shown in Figure 8, Fig. 9 (b)).Thus, though in the situation that the tension force of mask 13 reduces (do not depend on mask 13 tension force state how), the cleaning surface 19a of the following and mask cleaner 19 of mask main body 13c also can become the state of being close to.

Like this, in the present embodiment, four mask press sections 16 for make mask cleaner 19 be positioned at mask 13 below state under from above press mask main body 13c, will press on the mask press device of the cleaning surface 19a of mask cleaner 19 below the mask main body 13c.In addition, above-mentioned steps ST22 for make mask cleaner 19 be positioned at mask 13 below state under from above press mask main body 13c, will press on the operation of the cleaning surface 19a of mask cleaner 19 below the mask main body 13c.

If control device 20 will press on the cleaning surface 19a of mask cleaner 19 below the mask main body 13c, then carry out the action control of the 19M of cleaner travel mechanism, make spray nozzle part 41 move (relatively moving) (arrow G shown in Fig. 9 (c)) along Y direction, thus, by cleaning surface 19a(paper parts 42) wiping is attached to the residue (step ST23 shown in Figure 8, Fig. 9 (c)) of the following cream Pt of mask main body 13c.At this, control device 20 carries out the suction action via the air of the air intake pipeline in the spray nozzle part 41 when carrying out the cleaning of mask 13.

In the cleaning of this mask 13 and since the cleaning surface 19a of mask cleaner 19 be close to reliably mask main body 13c below, therefore, even if the tension force of mask 13 is in the reduction state, mask cleaner 19 also can be brought into play the performance of removing of original cream Pt.

Like this, in the present embodiment, the 19M of cleaner travel mechanism is utilizing the mask press device namely four mask press sections 16 will to press on below the mask main body 13c under the state of cleaning surface 19a of mask cleaner 19, mask cleaner 19 is relatively moved with respect to mask main body 13c, remove the following cream Pt that is attached to mask main body 13c.In addition, above-mentioned steps ST23 removes the operation of the following cream P that is attached to mask main body 13c for mask cleaner 19 is relatively moved with respect to mask main body 13c.

If finish the movement of mask cleaner 19, then control device 20 makes the cylinder 16c rising (the arrow D4 shown in Fig. 9 (d)) of four mask press sections 16, remove pressing of mask main body 13c, make mask main body 13c leave cleaning surface 19a(Fig. 9 (d) of mask cleaner 19, step ST24 shown in Figure 8).In addition, when control device 20 increases at the cream Pt that is attached to cleaning surface 19a, carry out batching of paper parts 42, carry out the renewal of cleaning surface 19a.

As described above, the method for printing screen that screen process press 1(screen process press 1 in the present embodiment carries out) in, press mask main body 13c from the top, the cleaning surface 19a of mask cleaner 19 will be pressed on below the mask main body 13c, do not depend on mask 13 tension force state how, and can guarantee the cleaning surface 19a of mask cleaner 19 and the enough adaptations between the mask main body 13c, therefore, can prevent mask cleaner 19 cream Pt remove reduction of performance, can suppress thus the bad generation of press quality.

Utilizability on the industry

The utility model provides a kind of screen process press of removing reduction of performance that can guarantee cleaning surface and the enough adaptations between the mask main body of mask cleaner and prevent the cream of mask cleaner.

Claims

1. screen process press is characterized in that possessing:

Mask, it has the framework that keeps with fixing state with respect to base station and is installed on the tabular mask main body on the framework and consists of via sheet component;

Scraper plate, it is transferred to substrate sliding with the mask main body that contacts above the substrate with the cream that supplies on the mask main body;

The mask cleaner, it makes cleaning surface towards the top;

The mask press device, its make the mask cleaner be positioned at mask below state under from above press the mask main body, will press on the cleaning surface of mask cleaner below the mask main body;

Cleaner travel mechanism, it makes the mask cleaner relatively move with respect to the mask main body utilizing the mask press device with pressing on below the mask main body under the state of cleaning surface of mask cleaner, removes the following cream that is attached to the mask main body.