JPH08230172A - Cleaning method in screen process printing and squeegee device - Google Patents

Abstract

PURPOSE: To eliminate trouble caused by residue which remains even in cleaning by a cleaning device wherein a rigid squeegee blade having an ultra-thin blade is rotated on a rear and top faces of a screen plate, adhered and made to be in contact with the faces, and a residue discharging function of the tip of the squeegee blade and double cleaning with the squeegee blade are renewed by the rotation. CONSTITUTION: A squeegee blade 3-3n is finely adjusted smoothly by a cushioning section for fine adjustment of belt. A residue attached to the squeegee blade 3-3n is removed by a residue, removing blade 8. Next, a dispersing section 9 which supports the residue removing blade 8 and disperses a residue removing solvent is provided. The squeegee blade comes in contact with the surface of the residue removing blade 8 with rotation of a rotating section 2 and the residue is peeled off so as to clean the squeegee blade 3-3n conjointly with the dispersing solvent. The residue removing solvent is supplied by a feed pipe 9-2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for screen printing, and is mainly used for screen printing or thick film coating printing such as placing a solder paste at a predetermined position before mounting electronic components on an electronic circuit board. The present invention relates to a method and an apparatus for cleaning a used screen.

[0002]

2. Description of the Related Art Screen cleaning methods and devices used for screen printing on electronic circuit boards are roughly classified into the following. One is to directly spray a liquid solvent on the back surface (hereinafter, abbreviated as back surface) as the main surface lower surface of the screen after printing to remove unnecessary printing material around the back surface. The second one is to clean the back surface with a circumferential surface of a roll of synthetic paper or cloth (hereinafter collectively referred to as cloth body) and wipe off unnecessary substances (hereinafter,
Abbreviation for cleaning). A third type is a squeegee blade coated with a roll of synthetic paper or cloth (hereinafter, referred to as a cloth body), and the back surface is cleaned to wipe off unnecessary substances (hereinafter referred to as wiping). Further, the fourth one is a printing material in which two cleaning blades are connected before and after the cleaning direction, respectively, to clog a print image pattern portion (hereinafter referred to as a printing plate) on the screen. Between the two blades joined together is used to blow down by using compressed air or suck up by vacuuming.

The above-mentioned conventional cleaning method or apparatus is mainly applied to a metal screen, but it may also be used in a mesh screen as the definition of a printed image pattern becomes higher. .

[0004]

All the conventional examples of the cleaning method or apparatus for cleaning the back surface of the screen have advantages and disadvantages. For example, in the first example, the post-treatment of the printing material as an unnecessary residue that dissolves in the sprayed solvent and falls directly below the back surface is troublesome.
In the second type, the solvent and a small amount of oils in the printing material are relatively easily removed, but small solder particles as a solid matter tend to remain. Thirdly, there is an example of a problem in removal of a highly viscous liquid material including solder, which can be removed in a continuous printing process. The fourth is the same as above.
In order to realize the printing of a finer printing pattern, whether or not the back surface of the clear screen plate can be cleaned is an important issue for printing, which determines whether or not the printing of the fine pattern can be realized. The need is increasing. Also, there is a small accumulation of solid residue on the back surface of the screen after cleaning / cleaning in the printed material support (conveyor etc.) below the back surface of the screen. It is a major factor that hinders the horizontal and leveling of the screen plate and inhibits stable continuous printing of fine and high density. Similarly, the cleaning of the upper surface of the screen is an essential element for stable continuous printing of fine and high density, and especially when the pattern is 0.3 mm or less, the upper surface residue is a residue of shoots, scratches and screen plates. It becomes a factor of separation. Hereinafter, all objects to be cleaned are collectively referred to as a residue. Although the present invention is intended for cleaning both sides of the screen, the description will be given mainly on the back side, and the description on the top side will be omitted.

The present invention has been made in view of the above problems, and provides a cleaning method and a cleaning unit or apparatus based on the cleaning method, in which the disadvantages of the conventional example are removed without reducing the advantages thereof. is there. Less than,
References to a method or unit or device shall mean respectively a method or unit or device for cleaning a printing screen surface according to the present invention.

[0006]

In order to solve the above-mentioned problems, the method according to the present invention is directed to a tip of a blade of a blade having a sufficiently thin blade thickness, which is rigid enough to withstand the tension of a printing screen and which is in contact with the screen surface. Use a cleaning blade whose parts are evenly adhered and contacted in the length direction. Further, a plurality of cleaning blades are attached to the water receiver / gear type of the water turbine at the same intervals to constitute a rotatable mechanism, which is used by rotating the mechanism. The cleaning blade is brought into contact with and in close contact with the screen surface to scrape off the residue on the screen surface, and a scraping accommodating portion for scraping and accommodating the residue is provided, and the cleaning blade rotates with the scraping accommodating portion. It The scraping retention residue on the upper surface in contact with the scraping accommodating part and the screen surface of the rotating cleaning blade is brought into contact with the scraping accommodating part by utilizing the rotation, and the scraping accommodating part configured as the scraping grade part Due to the contact with the contact surface portion, the scraping retention residue on the upper surface in contact with the screen surface of the cleaning blade is stored in the scraping storage portion at the contact surface portion of the storage portion. The cleaning blade after scraping is rotated to perform the next cleaning as a non-retained residue / clean cleaning blade. Each cleaning blade works in the same way,
Each time cleaning is performed, the tip end of the side where the cleaning blade comes into contact with the screen surface is uniformly brought into contact with and comes into contact with the screen surface in the length direction, and is constantly rotated and renewed for wiping. Also, by changing the rotation speed of the rotating cleaning blade, and by changing the advancing speed, the number of cleaning blades in contact with the screen surface and the contact surface distance (between squeegees that rotate and update) can be changed to perform multiple cleanings. It is configured as a mechanism of, and a hanging drive mechanism is provided. It is configured so that the contact, the length of the contact surface, the angle, the strength, the rotation speed, etc. can be varied.
The cleaning blade is renewed several times at each cleaning, and the residue accumulated on the cleaning blade becomes a new secondary residue along with the residue after that in the course of one cleaning, which hinders the cleaning. Becomes As a means for cleaning while preventing secondary residues, cleaning is performed by renewing when the cleaning blade is rotating, and by doing so, a sufficient stable wiping effect can be achieved, and a fine pattern can be obtained by using a combination of the configurations of the various elements. It has become possible to easily print continuously.

Next, in the mechanism according to the present invention, in addition to the elements required to implement the method of the preceding paragraph, the control unit and the like move each start of each round trip to a position in front of the end of each round trip. However, by proceeding from this position as the starting point, it is possible to remove various obstacles of the residue that may remain due to the cleaning.

Next, in the mechanism according to the present invention, each of the elements required for implementing the method of the preceding paragraph may be configured in only one of the upper and lower sides, if necessary, to simplify the mechanism. Grooves and mounting plates are provided on the side plates and the supporting members so as to support both ends of each element in the axial direction. It is provided for coupling to the drive of the external drive means. It is renewed on the cleaning blade after each cleaning (hereinafter referred to as a rotary squeegee portion). The whole of each element, which is constituted by the rotating squeegee mechanism and the blade residue discharging mechanism, becomes a kind of unit by connecting the side plate or the supporting member. With the functions of the rotating squeegee mechanism and the blade residue discharge mechanism, the residue accumulated on the cleaning blade accumulated by the cleaning is newly added together with the residue after that from the middle of the cleaning process once or during the cleaning of continuous printing. Prevents the result of secondary residues that interfere with cleaning. Each time, a means for removing secondary residues as well as the original residue (primary residue) on the screen surface by updating the cleaning blade when the cleaning blade is rotated is provided.

Subsequently, the residue attached to the squeegee at the tip of the rigid squeegee of the ultra-thin blade of the rotary squeegee of the blade residue discharge part is removed by solvent spraying so as to facilitate the removal of the residue. An air mist or a coating part is provided in parallel with the tip of the scraping blade to facilitate removal of the residue.

Next, the main components based on the present invention will be described.
Configured as a cassette type unit, it facilitates and simplifies maintenance and facilitates the combined use with other cleaning devices.

Next, the drive control unit according to the present invention controls the contact surface sliding positions of the upper and lower squeegee blades across the screen so as to drive them directly up and down, and the drive means causes the squeegee blade to move. Synchronized with the same vertically.

Then, together with the rotary cleaning mechanism according to the present invention, the air supplied from the compressor from above or below the screen plate is used in combination, and the opening is oriented through the screen plate. A penetrating part is provided to remove the printing material in the narrow opening.

Subsequently, a rotary cleaning mechanism according to the present invention is used together with a mechanism for spraying the cleaning solvent of the above-mentioned solvent in an atmosphere or applying it, and for discharging the cleaning solvent. As a means for removing the residue, these comprehensive means provide a good plate separating means.
In addition to the provision of the mechanism for atomizing or coating and discharging, a means for removing the plate separation inhibiting factor of the coating solvent to the opening is also taken.

[0014]

In the method according to the present invention, the tips of a plurality of blades that are thin enough and have high rigidity in a gear type are rotated and advanced. Therefore, the blades are sequentially and renewed corresponding to the pitch of the rotary cleaning blade to obtain a clean blade. To prevent and remove the residue and secondary residue on the screen surface (rotating squeegee mechanism). Every time, the cleaning blade has an action of removing the residue on the screen surface by renewing it when it is rotated.
The rotary cleaning blade is cleaned (rotational cleaning effect) by scraping off the residue of the tip end of the rigid squeegee blade of the ultra-thin blade by a scraping squeegee of the residue discharging mechanism section (rotating cleaning blade is made possible (blade Residue discharge mechanism). The rotating squeegee mechanism and the blade residue discharging mechanism are integrally and integrally configured, and proceed and act to perform cleaning, and the blade is brought into close contact with the screen surface and at an acute angle.
As a result of the renewal being performed at a constant pitch, removal of the residue can be performed easily and efficiently. When the screen plate is cleaned, the residue after cleaning remains on the edge portion in the traveling direction of the opening, and the removal can be easily performed by a plurality of rotating cleaning blades.

Next, in the mechanism based on the present invention, if the method of the preceding paragraph is simply reciprocated, the residue of the final contact surface of the cleaning blade at the end of each end remains, and during the printing, the continuous printing is continued. The residue remains gradually not only on both sides of the screen but also on the printing plate support, causing bleeding or gradual bleeding. The removal of the residual residue can act as an effective means in fine / high density printing and can eliminate various obstacles. The removal of residue on the upper surface is performed by a housing type squeegee. However, in fine / high density printing, minute residue left on the edge of the opening also causes various obstacles, and the removal is performed by IC. It is indispensable with the integration of ICs, the increase in pin count, and the increase in pattern density.

Next, the mechanism of the rotary squeegee portion and the blade residue discharging portion as one mechanism of the cleaning blade may be selected to be one of the upper and lower sides of the screen surface, if desired, to simplify the mechanism.

Subsequently, a solvent is sprinkled on the tip portion of the rigid squeegee blade of the ultra-thin blade of the rotary squeegee portion of the blade residue discharge portion, so that the residue adhered to the tip portion is melted / peeled off.
The removal can be facilitated, and the residue removal effect can be easily enhanced by the melting, peeling and removal.

Since the rotating squeegee blade mechanism, the blade residue discharging mechanism, and the driving unit are integrated into a cassette type which can be attached to and detached from the cleaning device of the main body of the printing apparatus, the maintenance and the easy replaceability of the unit are facilitated. Maintains continuous printability. Further, it becomes easy to remove the accumulated residue in the residue discharge part and to collect and replace the rotating squeegee blade. Further, by forming one unit, it can be easily used for other devices.

The upper and lower squeegee blades, which sandwich the screen, are vertically and vertically synchronized with each other so that the sliding positions of the squeegee blades are synchronously interlocked with each other. By holding the screen plate against lameness and horizontal effect,
It has the effect of removing residues.

In the above, in the residue removal / cleaning of the surface / opening of the printing screen, the rotary cleaning mechanism according to the present invention is used together with the supply / discharge of air by the air supply / discharge device, or the supply by the unidirectional air. The wiping effect and the like can be improved by adding and discharging a cleaning solvent, spraying with an atmosphere, and applying a cleaning solvent, and by using a mechanism for discharging the cleaning solvent.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The gist of the present invention will be described below based on embodiments with reference to the drawings. FIG. 1 is a conceptual drawing for explaining the structure and function of a cleaning method according to the present invention. The cleaning blade is perpendicular to the cleaning direction and acts most directly on residue removal. A cleaning blade is attached to a cylindrical tube that closely contacts, comes into contact with, and rotates, and is a schematic view of a main part viewed from an obliquely upward direction. In the figure, an arrow B indicates the back surface of the screen, 1 indicates a housing portion, 2 indicates a rotating roller, 3 to 3n indicate a squeegee blade, 4 indicates a roller rotating shaft, 5 indicates a roller driving portion, and 6 indicates The drive motor, 7 represents a belt, and the rotation of the motor (6) causes the squeegee blades (3 to 3n) to rotate. The housing is provided with a support base 6-2 for the motor (6). The motor-related parts 6 to 7 can be provided outside the main body or can be directly connected to the main body. Bearing (4-2) of rotating shaft (4)
The squeegee blade (3-3
The contact surface is leveled and smoothed by the cushion part 4-3 for fine adjustment of n). The cushion portion 4-4 for belt fine adjustment facilitates fine adjustment of the squeegee blades (3 to 3n). Reference numeral 8 represents a residue removing blade for removing residues attached to the 3 to 3n squeegee blade. Reference numeral 9 denotes a spraying portion that supports the residue removing blade 8 and also sprays the residue removing solvent. Residue removal blade 8 by rotation of rotating unit 2
The squeegee blade (3 to 3n) is cleaned by removing the residue and mixing with the spraying solvent. Each of the squeegee blades (3 to 3n) is cleaned, and for this reason, the squeegee blades (3 to 3n) for surface cleaning are cleaned.
n) are squeegee blades (3
~ 3n). Reference numeral 9-2 represents a residue removing solvent supply pipe, and 9-3 represents a residue removing solvent tank and a circulation / supply pump. Reference numeral 10 represents a spraying / coating discharge port, and the solvent for removing residues is sprayed directly or through the cleaning cloth 13 or directly without spraying.
Apply. The cleaning cloth 13 is a roll-shaped (or fold-shaped) feed section roller 12 roller 12-
1 from the winding roller 12-2 to the cloth paper body 13,
The residue removing blade 8 and the upper ends of the spraying / coating discharge port 10 are wound on the contact surface / cover. The take-up mechanism 14 rotates the take-up mechanism 14 to rotate the roller 2 of the rotary unit 2 for a predetermined length, and the take-up roller 12-2 takes up the take-up roller 13 and the residue-removing blade 8 comes in contact with the cloth 13-2. To freely update and ensure cleaning. At 11, the air is taken in or sent to ensure the cleaning effect.

Depending on the requirement of the surface cleaning object, a series of mechanisms of the spraying section for spraying the solvent for removing residues can be omitted.

Depending on the requirement of the surface cleaning object, the residue removing blade 8 via the cloth material for cleaning 8
It is possible to omit a series of mechanisms of the face-to-face cloth body.

Depending on the requirements for the backside cleaning target,
An air intake or air supply mechanism may be provided separately from the air intake or air supply of 11.

A guide roller and a ball screw receiving portion of a drive unit of the casing unit 1 (representing the main body unit of the present device),
It is also possible to use other transmission means such as a belt by the drive mechanism of the housing unit 1. Due to the nature of the present invention, the mechanism associated with the printing device is omitted.

Although the description of the embodiment has mainly been given to the embodiment of cleaning the surface B, the same applies to the cleaning of the surface A, and the cleaning of the surface A is performed in the same manner.

The apparatus according to the method of the present invention can be configured to be detachable in a cassette type and can be used integrally with other cleaning systems. Drive motor 6 and support cradle 6-2
Is also provided in the printing apparatus as a mechanism related to the printing apparatus, so that the same cassette type can be obtained. It is pressed against the back surface of the screen as a residue removal target, and the contact surface of the squeegee portion is updated during one step of cleaning.

In accordance with the method of the present invention, the contact surface sliding positions of the upper and lower squeegee blades sandwiching the screen under the control of the control device are synchronized vertically and vertically so that the vertical and vertical movements of the screen are synchronized. Prevents bending and distortion due to cleaning, and prevents lameness and distortion due to the horizontal effect of the screen plate during top and bottom cleaning.

According to the method of the present invention, based on the control of the control device, the reciprocating movement of the rotary cleaning mechanism is changed to a position in front of the end of each reciprocation, each start and end of each reciprocation. In order to proceed starting from this position,
It constitutes the control of the control device.

FIG. 2 is a sectional view of the embodiment shown in FIG. 1 for explaining the structure and function of the cleaning unit according to the present invention. Reference character G denotes a cassette type cassette of G shown in FIG. 1 and is a constituent element of a cassette which is provided by a side plate or a supporting member and which is composed of the side plate or the supporting member. The above-mentioned side plates or support members at both axial ends of each component are connected and assembled, and G represents a kind of unit. The function of each element is of course the same as that described in the previous section. The squeegee attached to the roller (2) and the like, as well as specific examples thereof, are as described in FIG. In this device, U is the entire main unit, and the main unit (U) is constituted by a cassette part G connected or mounted to the main unit and is operated by a drive source provided outside the unit (U). It drives the cassette part and is portable as a whole,
The cleaning unit for the screen surface of the screen printing apparatus can be mounted via the mounting tool or the supporting tool without selecting the printing apparatus to be mounted. The residue removing blade 9 removes the scraping residue of the squeegee blades 3 to 3N of the rotating roller 2 by rotating the roller, and the solvent is sprayed to the residue removing blade 9 through the transporting unit 9-2 and the discharging unit 10 if necessary. Apply and remove. Illustration of the circulation unit / storage unit related to the solvent transport unit 11 is omitted.

Reference numeral 11 in the figure represents an air intake / air supply section, which is used as necessary. (In this embodiment, the support portion is provided side by side.)

It is also possible to divide the cassette of FIG. 2 into a plurality of parts, and this device can be provided with a driving part inside instead of being operated by a driving source provided outside. Similarly, it can be used as a unit.

It should be noted that the drive unit of the main body unit U is not shown in FIGS.

In the embodiment shown in FIG. 3, a main portion U for explaining the main body portion U provided with the covering squeegee portion H on the front and rear portions of the rotary roller 2 shown in FIG. It is a figure. The drive units of the main body unit U and the unit G of the unit respectively represent that the air cylinder attached to the support 12 supports the unit (U) via 14-2. From the arrangement of the rotating rollers in U,
It is known to be a perspective view of another embodiment of FIG. All elements shown in FIG. 2 are essential elements that make up the device according to the invention. That is, the operation is such that when the air cylinder 14 descends, the unit (U) descends via the support plate 12 and the transmission rod 14-2, and accordingly, 18 which was in contact with S or P which covers the tip thereof is also removed from S. Leave. Even while the lowering operation to the predetermined position is completed, the drive mechanism 19 is operated, and the gear 23, the drive belt 24, and the coupling unit 25 are operated.
-The feed roller is rotated by a fixed pitch via the support side plate 26 (illustrated 3-3). In this process, the main surface of the cloth / fabric body (P) covering the cleaning blade is renewed. FIG. 3-2 is a perspective view of the coated squeegee portion H, showing the roller support portion 20, the roller shaft 21, the roller tension spring 22, and the coated cloth paper H-1.

Next, FIG. 3-3 is a lateral cross-sectional view of the main parts of the unit drive section 19 and the drive section of the unit section 19-2 shown in FIG. The unit driving section 19 is connected to the unit connecting section 25
The drive unit 24 is connected to the drive unit, and the drive belt 24 rotates and transfers the squeegee units 3 to 3N and the cloth H-2 (P).

Next, FIG. 3-4 shows the unit driving unit 19 of FIG. 3 for driving and rotating the squeegee units 3 to 3N and the cloth H-2 (P) by the driving belt 24 and the driving unit of the unit unit 19-2. FIG. 3 is a cross-sectional view of main parts of the main body housing U, the cassette part G, and the air cleaning part 27. (1) is a squeegee part 3 to 3N / cloth paper H-2 by the drive belt 24.
The drive-related mechanism for rotating and transferring (P) and the air nozzle 27 are shown in parallel. (2) represents the relationship between the rotary cloth paper which is applied to and washed with the cloth paper by filling, replenishing and circulating the cleaning solvent at the bottom of the unit section 19-2. The cleaning solvent may be charged / supplemented / circulated by spraying a cloth paper, or may be supplied in place of the rotating cloth paper.

Subsequently, FIG. 4 shows the embodiment of FIG.
FIG. 5 is a lateral cross-sectional view of a main part of a covered squeegee part that is configured by a squeegee 31-2 having an ultra-thin rigidity for the squeegee part 31 formed by the roller shaft of the part. The feed roller 32 is rotated by the drive roller 32 to feed the cloth P sandwiching it, the rigid squeegee 31-2 is covered, and the other rigid squeegee 31-2 is covered via the rotating roller 2 to wind the cloth paper. It is wound and collected in the part P-2. The feeding / recovering mechanism / method of the cloth P can be freely changed. In this example, it is carried out when the squeegee is lowered after cleaning, and the driving roller 32 serves as a mechanism to stop at the next raising operation, and the above-mentioned cloth P is kept fixed. Contributes to the removal of the S residue. That is, as one example, reference number 0
The configuration of 70218 is also possible as part of this mechanism.

In addition to the above embodiments, various configurations and structures are allowed without departing from the gist of the present invention, and are not particularly limited to the drawings of the above embodiments. Absent. For example, conventionally, the present invention is not limited to impregnating the above-mentioned wiping cloth bodies with a solvent for removing residues and whether or not to install a supply means for the solvent therefor. The drawing is omitted in common in each drawing. The rotary squeegee can be a polygon such as a triangle, and the same applies even if the front and rear cleaning mechanisms are replaced with other objects.

[0039]

As can be easily understood from the above description, the present invention has the following effects in screen printing.

In the cleaning method according to the present invention,
The tip of the ultra-thin blade rigid blade facing the screen surface rotates while moving in contact with the screen surface, cleaning the residue on the screen surface without leaving the rotating blade and increasing the wiping effect. To be

Next, a cleaning mechanism using cloth is provided in front of and behind the rotary wing type screen to further prevent the cleaning and deterioration due to the solidification and adhesion of the printing material and the further cleaning effect.

Next, a rotary blade type screen, which is closely adhered and coated with a cloth body including the above synthetic paper, is used as a cleaning blade for the screen surface, and the cloth is used for each cleaning step. Since the class is renewed, all unnecessary residue attached to the screen surface
Smoothly removed. Then, the cleaning is always performed efficiently.

Next, it is possible to print a very narrow ine pitch pattern by supplying and discharging with air (being directional through the screen) before and after the rotary wing type screen. (For example, 0 in solder paste,
20 stable continuous printings are possible. )

In the cleaning according to the present invention, a necessary mechanism for a squeegee such as a consumable item such as a squeegee is formed into a cassette, which needs to be replaced, and if necessary for maintenance,
It can be easily attached and detached to facilitate stable replacement and printing of stable narrow and fine patterns due to the cleaning effect due to thin blade squeegee blade, solvent mist, squeegee blade by cloth adhesion, and functional check easily. It is possible to realize continuously, and it is possible to flexibly support various printing devices because of the convenience of unitization,
It can be utilized.

The cleaning apparatus according to the present invention uses an air cylinder as a drive source provided outside the unit, but other drive sources may be used. By raising and lowering the entire cleaning unit, the cleaning blade screen surface Since the main surface of the fabric body that adheres and covers the blade is renewed for each separation surface, cleaning is efficiently performed, and a good plate result is obtained. Result in good continuous printing

[0046]

[Brief description of drawings]

FIG. 1 is a lateral cross-sectional view of a main part configuration showing an embodiment of a cleaning method. Main unit, cassette

FIG. 2 is a lateral cross-sectional view of the essential parts showing an embodiment of a cleaning unit. Main unit, cassette

FIG. 3 is a lateral cross-sectional view of the essential parts showing an embodiment of a cleaning unit. Main unit, cassette and main unit drive

[Fig. 3-2] Fig. 3-2 is a cross-sectional view of a main part configuration showing an embodiment of a cloth / roller.

[Fig. 3-3] Fig. 3-3 is a cross-sectional view of a main part configuration showing an embodiment of a cloth / roller.

[Fig. 3-4] Fig. 3-4 is a lateral cross-sectional view of the essential parts showing the embodiment of the cleaning method. Main unit unit, cassette unit, air suction unit

FIG. 4 is a lateral cross-sectional view of the essential parts showing an embodiment of a cleaning unit. FIG. 4 is a transverse cross-sectional view of a drive main part configuration of a main body unit part, a cassette part, a roll cloth and the like.

[Fig. 4-2] Fig. 4-2 is a lateral cross-sectional view of the essential parts showing the embodiment of the cleaning unit. FIG. 5 is an alternative example of FIG. 4 in a lateral cross-sectional view of a drive main part configuration such as a cassette part and a roll cloth. 1 Main Body Case 2 Rotating Roller (Rotating Feather Roller) 3 to 3N Squeegee Blade 4 Roller Rotating Axis 4-1 Roller Rotating Bearing Unit Drive Unit A (4-2 to 11) 4-2 Roller Rotating Axis Fine Adjustment Unit 5 Roller Rotational drive unit 6 Drive motor 6-2 Drive motor support base 7 Drive belt 7-2 Drive belt fine adjustment unit 8 Residue removal blade support unit 9 Residue removal blade 9-2 Residue removal blade connection unit 10 Solvent mechanism route unit 10-2 Solvent discharge port (example where solvent path is attached to residue removal blade) 11 Air suction part 12 Lower surface cleaning support stand 13 Residue removal blade coated cloth paper 14 Air cylinder 14-2 Cylinder rod 14-3 Air hose 15 Linear guide 16 Move Drive part (ball screw rail) 17 Guide roller 18 Air nozzle 19 Uni Drive unit 19-2 Unit (cassette) unit 20 Roller support 21 Roller shaft 22 Roller tension spring 23 Gear 24 Drive belt 25 Unit coupling portion 26 Support side plate 27 Drive roller 28 Air pipe 29 Air branching device 30 Cleaning agent and filling portion 31 Cleaning Chemical Supply / Circulation Pipe 32 Drive Roller (Cloth Paper Feed) 33 Feed Roller 34 Chemical Supply Pipe (Squeegee Connection) 35 Chemical Discharge Section 36 Squeegee Support A Front B Back G G Unit (Cassette) H Cover Squeegee part H-2 (P) Coated cloth paper screen contact surface part P Coated cloth paper (roll or endless) P-2 Cloth paper winding part S screen plate U …… 1 Main body part (main body unit part)

Claims (7)

[Claims] 1. A cleaning device for cleaning both upper and lower sides of a screen of a screen printing device, wherein a rigid squeegee blade having an ultra-thin blade is formed in a cylindrical or equilateral polygonal type tubular tube, and a required number of gears are formed in a radial shape. Using the ultra-thin blade rigid squeegee blade, the back side or front side of the screen plate is rotated on each side of the screen plate by the drive mechanism of the squeegee blade to bring them into close contact / contact surface (hereinafter referred to as squeegee part) and Rigid squeegee blades with thin blades are equipped with a residue discharge function (hereinafter referred to as blade residue discharge part) at the tip of the blades and a drive mechanism capable of adjusting the movement, thereby performing double-sided cleaning by the rigid squeegee blades with ultra-thin blades. Cleaning of each part of the screen surface by the blade tip by frequent update by rotating Hereinafter, referred to as a rotation cleaning mechanism.) A method for cleaning a printing screen plate, and
The cleaning device. 2. The reciprocating movement of the rotary cleaning mechanism according to claim 1, wherein each start and end of each reciprocation of the reciprocation is changed to a position in front of the end of each reciprocation, and the position is started as the start. , Cleaning device for printing screen plate having such drive mechanism with adjustable movement 3. The rotary cleaning mechanism according to any one of claims 1 and 2, wherein the upper surface and the lower surface are independently singly used for cleaning the upper and lower surfaces of the screen of the screen printing device in one direction of the upper and lower sides, if necessary. A printing screen plate cleaning device having a drive mechanism capable of adjusting the movement, which cleans each part of the screen surface. 4. The rotary cleaning mechanism according to any one of claims 1 to 3, wherein a blade is provided with a solvent application function to the tip portion of the rigid squeegee blade of the ultra-thin blade of the rotary squeegee portion of the blade residue discharge portion, and if necessary, discharge by air. For cleaning a printing screen, which comprises a mechanism for providing a section and is composed of the adjustable drive mechanism section. 5. A cleaning device for a printing screen, wherein the rotary cleaning mechanism according to any one of claims 1 to 4 is constructed as a detachable cassette type, and is constituted by the cassette. 6. In the drive mechanism of the cleaning device for cleaning the upper surface of the screen or the upper and lower surfaces of the screen according to any one of claims 1 to 5, movement adjustment is possible to drive the contact surface sliding positions of the upper and lower squeegee blades directly up and down across the screen. A cleaning device for a printing screen, which is configured to have various driving means, and which is constituted by a driving mechanism which synchronously interlocks the driving means vertically. 7. The printing device according to any one of the preceding claims, wherein the cleaning is performed by supplying / discharging by air through a screen plate or by air having the same direction and by applying or spraying a cleaning solvent. Screen cleaning device