WO2017086137A1 - 印刷版、印刷装置、基材及び基材の製造方法 - Google Patents
印刷版、印刷装置、基材及び基材の製造方法 Download PDFInfo
- Publication number
- WO2017086137A1 WO2017086137A1 PCT/JP2016/082221 JP2016082221W WO2017086137A1 WO 2017086137 A1 WO2017086137 A1 WO 2017086137A1 JP 2016082221 W JP2016082221 W JP 2016082221W WO 2017086137 A1 WO2017086137 A1 WO 2017086137A1
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- WIPO (PCT)
- Prior art keywords
- printing
- screen plate
- plate
- squeegee
- base material
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
- B41F15/0895—Machines for printing on curved surfaces not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/16—Printing tables
- B41F15/18—Supports for workpieces
- B41F15/30—Supports for workpieces for articles with curved surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/34—Screens, Frames; Holders therefor
- B41F15/38—Screens, Frames; Holders therefor curved
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/40—Inking units
- B41F15/42—Inking units comprising squeegees or doctors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/40—Inking units
- B41F15/42—Inking units comprising squeegees or doctors
- B41F15/423—Driving means for reciprocating squeegees
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/12—Stencil printing; Silk-screen printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/40—Printing on bodies of particular shapes, e.g. golf balls, candles, wine corks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N1/00—Printing plates or foils; Materials therefor
- B41N1/24—Stencils; Stencil materials; Carriers therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
- B41M1/30—Printing on other surfaces than ordinary paper on organic plastics, horn or similar materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
- B41M1/34—Printing on other surfaces than ordinary paper on glass or ceramic surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
- B41M1/38—Printing on other surfaces than ordinary paper on wooden surfaces, leather, or linoleum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N1/00—Printing plates or foils; Materials therefor
- B41N1/24—Stencils; Stencil materials; Carriers therefor
- B41N1/248—Mechanical details, e.g. fixation holes, reinforcement or guiding means; Perforation lines; Ink holding means; Visually or otherwise detectable marking means; Stencil units
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24926—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including ceramic, glass, porcelain or quartz layer
Definitions
- the present invention relates to a printing plate, a printing apparatus, a base material, and a method for manufacturing the base material.
- Patent Document 1 discloses a method of printing a printing surface by disposing a screen plate on an upper surface of a curved surface to be printed and pressing the screen plate with a squeegee.
- Patent Document 2 discloses a curved screen printing apparatus in which the screen plate is rotationally driven according to the curvature of the printing surface so that the screen plate always faces the tangential direction on the printing surface. .
- the screen plate is made of a mesh material made of a metal material such as stainless steel or a resin material including nylon or polyester.
- Patent Document 1 does not describe how the screen plate is fixed, but usually the periphery of the screen plate is fixed to the frame by bonding or the like.
- the screen plate When the screen plate is made of a metal material such as stainless steel, the screen plate is harder than the case where the screen plate is made of a resin material, so that a good plate separation can be realized even if the clearance from the printing material is small. Therefore, it is suitable for high-precision printing.
- the shape of the screen plate is bent so as to match the shape of the printed material having a curved surface, it is necessary to provide a clearance that can absorb the shape error between the screen plate and the printed material.
- the clearance with the printing material cannot be set large, and thus a clearance that can absorb the shape error cannot be secured.
- the screen plate is made of a synthetic resin containing nylon, polyester, or the like
- the screen plate is soft, and the clearance between the screen plate and the printed material can be increased as compared with a metal material. Therefore, when the shape of the screen plate is bent so as to match the shape of the printing material, a clearance that can absorb the shape error between the screen plate and the printing material can be provided.
- the screen plate is soft, tension for maintaining the bent state cannot be obtained.
- an object of the present invention is to provide a printing plate, a printing apparatus, and a substrate manufacturing method capable of accurately printing on a printing surface having a bent portion.
- a printing plate comprising a screen plate having an opening pattern and a frame body to which the screen plate is fixed, The printing plate has at least one bent portion and is fixed so as to be relatively movable with respect to the frame.
- the printing plate further includes a fixing member connected to the periphery of the screen plate, and the periphery of the printing plate is fixed to the frame.
- the printing plate according to (1) wherein the screen plate is fixed to be movable relative to the frame body by setting the tensile strength of the fixing member to be smaller than the tensile strength of the screen plate.
- the fixing member is made of a resin material.
- a printing apparatus comprising: a squeegee which is disposed above the screen plate of the printing plate and pushes a printing material onto the printing surface through the opening pattern of the screen plate.
- the printing apparatus (11) The printing apparatus according to (9) or (10), wherein the squeegee driving mechanism includes a rotation shaft that allows the squeegee to rotate. (12) The printing apparatus according to any one of (7) to (11), further comprising a scraper that is disposed above the screen plate of the printing plate and spreads the printing material on the screen plate. . (13)
- the printing plate includes a guide member having guide surfaces that support both ends of the rotation axis direction, The printing apparatus according to (11) or (12), wherein the squeegee moves relative to each other while cam followers provided at both ends in the rotational axis direction are in rolling contact with the guide surface.
- the printing apparatus further including a pressing member that is provided to face the guide member and that forms a gap for guiding the cam follower between the guide surface and the guide surface.
- the mounting table includes a mounting table main body that supports a central portion of the base material, and a retracting block that supports an end portion of the base material, and the retracting block is configured with respect to the mounting table main body.
- the printing apparatus according to any one of claims 7 to 14, wherein the printing apparatus relatively moves up and down.
- the printing apparatus according to any one of (7) to (15), wherein the base material is a glass plate.
- a method for producing a base material comprising: a printing surface having at least one bent portion; and a printing layer formed on the printing surface, A screen plate having an opening pattern, and a frame on which the screen plate is fixed, and a printing plate disposed above the substrate; A squeegee disposed above the screen plate of the printing plate; With The screen plate has at least one bent portion, and is fixed to be movable relative to the frame.
- a method for producing a substrate wherein the printing material is pushed out to the printing surface by the squeegee through an opening pattern of the screen plate.
- (20) comprising a scraper disposed above the screen plate of the printing plate;
- (21) When the printing material is spread on the screen plate, the scraper and the screen plate are relatively moved so that the contact angle of the scraper with respect to the screen plate is constant.
- (20) The manufacturing method of the base material as described in any one of.
- (22) When the printing material is spread on the screen plate, the scraper and the screen plate are relatively moved so that the pressing force of the scraper against the screen plate is constant. Or the manufacturing method of the base material as described in (21).
- a base material comprising: a printing surface having at least one bent portion; and a printing layer formed on the printed surface, wherein the bending portion has a bending depth of 10 mm or more.
- a thickness deviation of the printed layer is ⁇ 10% with respect to an average thickness.
- FIG. 3 is a sectional view taken along line III-III in FIG. 2. It is sectional drawing of the base material which a to-be-printed surface consists of only one bending part. It is a top view of a mounting base. It is a perspective view of a printing plate.
- FIG. 13 is a sectional view taken along line XIII-XIII in FIG. 12.
- FIG. 13 is a cross-sectional view taken along line XIV-XIV in FIG. 12. It is a top view of the screen plate shown in FIG. It is principal part sectional drawing of the printing apparatus of the 3rd structural example. It is principal part sectional drawing which shows a mode that the printing apparatus of a 4th structural example rotates and displaces and prints. It is principal part sectional drawing which shows the structural example of the other mounting base in the printing apparatus of a 5th structural example.
- FIG. 1 is a cross-sectional view of an essential part of the printing apparatus 100 of the first configuration example showing how a scraper rotates and displaces and spreads a printing material on a screen plate.
- the printing apparatus 100 includes a mounting table 3 on which a base material 10 having a printing surface 11 is mounted, a printing plate 20 disposed above the mounting table 3, a scraper 6 that moves on the printing plate 20, and a description that will be described later. And a squeegee.
- the thickness direction of the substrate 10 vertical direction in FIG.
- the Z direction is referred to as the Z direction
- the direction in which the scraper 6 moves perpendicular to the Z direction is referred to as the Y direction
- the direction perpendicular to the Z direction and the Y direction is referred to as the X direction.
- the substrate 10 includes a printing surface 11 (upper surface) and a lower surface 12 that faces the printing surface 11.
- the printing surface 11 and the lower surface 12 are parallel to each other, but are not necessarily parallel.
- the substrate 10 is a bent substrate having a three-dimensionally curved shape, and has a bent portion on at least a part of the printing surface 11.
- the “bent portion” means a portion where the average radius of curvature is not infinite, specifically, a portion where the radius of curvature is 1000 mm or less.
- the base material 10 may have a shape in which the entire surface of the base material 10 is curved.
- the base material 10 of this configuration is connected to the first flat surface portion 10a parallel to the XY plane from one end to the other end in the Y direction, and the bent to be bent in the Z direction (upward in the figure).
- a second flat portion 10c connected to the bent portion 10b and extending to the other end in the Y direction (right side in the figure).
- the to-be-printed surface 11 of the base material 10 is corresponded to the 1st plane part 10a, the bending part 10b, and the 2nd plane part 10c, the 1st plane part 11a parallel to an XY plane, and the 1st plane part 11a.
- a second flat portion 11c that is connected to the bent portion 11b and extends to the other end in the Y direction (rightward in the drawing), Have
- FIG. 2 is a perspective view schematically showing the appearance of the substrate 10, and FIG. 3 is a cross-sectional view taken along the line III-III in FIG.
- the X-direction dimension of the base material 10 having the first plane portion 10a, the bent portion 10b, and the second plane portion 10c is a
- the Y-direction dimension is b
- the thickness is t.
- the distance between both ends of the base material 10 in the direction in which the base material 10 is bent is defined as a bending depth h.
- the bending depth h is preferably 5 mm to 500 mm, more preferably 10 mm to 300 mm, still more preferably 20 mm to 300 mm, and particularly preferably 10 mm to 100 mm.
- the bent portion 11b may have a convex curved shape in which the printing surface 11 becomes a convex surface instead of the concave curved shape in which the printing surface 11 becomes a concave surface as shown in FIG.
- an angle formed at the intersection point where the extended lines of the surfaces of the first plane portion 11a and the second plane portion 11c of the printing surface 11 intersect is defined as an “opening angle ⁇ ”.
- the opening angle ⁇ of the substrate 10 is preferably 45 ° or more and 315 ° or less, and more preferably 90 ° or more and 270 ° or less (except in the case of 180 °).
- the base material 10 may have a configuration in which the printing surface 11 includes only one bent portion 11b.
- the bending depth h of the base material 10 is a line segment connecting the Z direction lower end portions P1 and P2 of the base material 10, and a tangent line of the base material 10 bottom portion (the outer surface of the concave curved surface) parallel to the line segment, Is the distance.
- the opening angle ⁇ of the base material 10 is from the contact O to the Z direction.
- the X direction dimension a, the Y direction dimension b, and the wall thickness t of the base material 10 are not particularly limited. It is preferable to make the thickness t substantially constant throughout the substrate 10. Further, the wall thickness t may be changed partially or may be changed over the entire area of the substrate 10.
- the substrate 10 examples include plates of glass, ceramics, resin, wood, metal, and the like.
- the glass plate includes crystallized glass and colored glass in addition to colorless and transparent amorphous glass.
- the glass plate as a bending base material can be used for various uses, it is mounted on a transport machine such as an automobile, a train, a ship, and an aircraft, and can be preferably used.
- the base material 10 is used for interior parts of a transport aircraft such as an instrument panel, a head-up display (HUD), a dashboard, a center console, a shift knob, etc., it is possible to give the interior parts a high designability and a high-class feeling. The design of the interior of the transport aircraft can be improved.
- the protrusion of the base material 10 has an effect of preventing the screen plate 30 from touching the upper surface 4 and the like of the mounting table 3 and preventing the base material 10 from being contaminated by the printing material.
- the protruding amount of the printing surface 11 of the substrate 10 from the upper surface 4 of the mounting table 3 is preferably 0.1 to 1 mm, more preferably 0.1 to 0.5 mm or less, and further 0.1 to 0.2 mm. preferable.
- the mounting table 3 is made of carbon, resin, or the like.
- the resin include Bakelite (registered trademark), Peak (registered trademark), vinyl chloride, Duracon (registered trademark), and the like. These resins may be mixed with a surface treatment with a conductive film or the like for imparting conductivity, or a conductivity imparting material such as carbon.
- the volume resistivity of the mounting table 3 (at least the upper surface 4 of the mounting table 3) is preferably 10 9 ⁇ m or less, and more preferably 10 7 ⁇ m to 10 8 ⁇ m.
- the volume resistivity is in the above range, static electricity generated during printing is suppressed, and separation of the screen plate 30 (described later) from the printing surface 11 is improved. Furthermore, the cutting of the printing material such as ink is improved, and the printing accuracy can be improved without contaminating the screen plate 30. In addition, since static electricity can be reduced, a good printed layer can be formed without attracting foreign matters such as dust.
- the method of fixing the base material 10 to the mounting table 3 is not limited to the fitting into the groove 5 described above, but may be vacuum suction, or both may be used in combination.
- FIG. 5 is a plan view of the mounting table 3. As shown in FIGS. 1 and 5, a plurality of vacuum holes 7 are opened in the groove 5 on the upper surface 4 of the mounting table 3, and each vacuum hole 7 extends in the Z direction. Connected to a pump or the like). When external air is sucked from the vacuum hole 7 by the vacuum device, the base material 10 is vacuum-adsorbed on the mounting table 3.
- the mounting table 3 shown in FIG. 1 shows a configuration example in which both the fitting of the base material 10 into the groove 5 and the vacuum suction are used together.
- a recess 9 is formed on the upper surface of the mounting table 3 at a position where an edge of the base material 10 (in this embodiment, one side of the base material 10) passes.
- the lower surface 12 at the edge of the substrate 10 faces the opening of the recess 9.
- the depression 9 is provided for putting the hand 10 or a spatula or the like to float the substrate 10 after printing the substrate 10 and removing the substrate 10 from the mounting table 3 without touching the printing surface 11. Therefore, the depression 9 has a size that allows insertion of a hand, a spatula, or the like, and is formed along one side of the base material 10 in this configuration.
- an abutting member may be provided on the mounting table 3 so that the base material 10 does not easily move in the XY plane. Thereby, the end surface of the base material 10 is fixed, and even if a printing process is implemented, the base material 10 becomes difficult to move and the printing accuracy is improved.
- a printing plate 20 that performs screen printing on the printing surface 11 of the substrate 10 is disposed above the mounting table 3 in the Z direction.
- FIG. 6 is a perspective view of the printing plate 20.
- the printing plate 20 includes a screen plate 30 having an opening pattern 31, a frame 40 on which the screen plate 30 is fixed, an inner peripheral portion connected to the periphery of the screen plate 30, and an outer peripheral portion fixed to the frame. Fixing member 50 to be provided.
- the frame body 40 has a rectangular upper frame 41 that is inclined and extended upward in the Z direction as it goes from the left end in the Y direction to the right end.
- the upper frame 41 includes a first upper frame piece 41a positioned at the left end in the Y direction, and a second upper frame piece connected to both ends in the X direction of the first upper frame piece 41a and extending to the right end in the Y direction. 41b, a third upper frame piece 41c, and a second upper frame piece 41b, and a fourth upper frame piece 41d connecting the right ends of the third upper frame piece 41c in the Y direction.
- the first upper frame piece 41a, the second upper frame piece 41b, and the third upper frame piece 41c On the inner peripheral side (screen plate 30 side) of the lower surface of the first upper frame piece 41a, the second upper frame piece 41b, and the third upper frame piece 41c, the first upper frame piece 41a, the second upper frame piece 41b, A first side wall 42a, a second side wall 42b, and a third side wall 42c extending downward in the Z direction so as to be perpendicular to the third upper frame piece 41c are formed. Both ends of the first side wall 42a in the X direction are connected to the second side wall 42b and the third side wall 42c.
- the lower surfaces 43a and 43c (the lower surface of the second side wall 42b is not shown) of the first side wall 42a, the second side wall 42b, and the third side wall 42c are the printed surface 11 and the mounting table of the substrate 10 shown in FIG. 3 is a surface along the upper surface 4.
- the upper surface of the first upper frame piece 41 a is held by a clamp 44.
- the clamp 44 is connected to a support bar 45 extending in the Z direction at a support portion on the opposite side of the first upper frame piece 41a.
- the clamp 44 is supported so as to be rotatable in the YZ plane around the connection point P to the support bar 45.
- the fourth upper frame piece 41d is not fixed, but is supported by the upper end portion of the height adjustment support rod 46 whose lower surface extends in the Z direction.
- the height adjustment support rod 46 adjusts the height S of the printing plate 20 (the screen plate 30, the frame body 40, and the fixing member 50), and adjusts the distance S between the screen plate 30 and the substrate 10.
- the printing plate 20 After the printing by the screen plate 30, the printing plate 20 is rotated and retracted in the direction away from the base material 10 (counterclockwise in the figure) with the connection point P as the center. And the printed base material 10 can be removed from the mounting base 3, and the base material 10 printed next can be set to the mounting base 3.
- FIG. 1 A block diagram illustrating an exemplary computing environment in accordance with the present disclosure.
- the screen plate 30 is fixed to the inner peripheral side of the frame body 40 and has a shape corresponding to the printing surface 11 of the substrate 10 and the upper surface of the mounting table 3. That is, the screen plate 30 is disposed on the printing surface 11 of the base material 10 and the upper surface 4 of the mounting table 3 via a substantially constant interval S, and the printing surface 11 of the base material 10 and the upper surface 4 of the mounting table 3. Are arranged in parallel. That is, the screen plate 30 has the same shape as the base material 10 has the first flat portion 10a, the bent portion 10b, and the second flat portion 10c.
- the screen plate 30 is connected to the first flat surface portion 30a parallel to the XY plane and the bent portion that is connected to the first flat surface portion 30a and is inclined and extended upward in the Z direction toward the right end portion in the Y direction.
- interval S of the screen plate 30, the to-be-printed surface 11 and the upper surface 4 does not need to be constant. Further, the screen plate 30 and the printing surface 11 and the upper surface 4 may not be parallel.
- the screen plate 30 also has a curved shape.
- the opening pattern 31 of the screen plate 30 is composed of a plurality of openings formed over the first flat surface portion 30a, the bent portion 30b, and the second flat surface portion 30c.
- the position, shape, and the like where the opening pattern 31 is provided are not particularly limited and are arbitrary.
- the screen plate 30 is fixed to the inner surface of the frame body 40 via a fixing member 50. More specifically, the fixing member 50 is connected to the periphery of the screen plate 30 with an adhesive or the like. Similarly to the screen plate 30, the fixing member 50 is disposed with a substantially constant interval S with respect to the printing surface 11 and the upper surface 4, and is disposed in parallel with the printing surface 11 and the upper surface 4. The periphery of the fixing member 50 is fixed to the inner surface of the frame body 40 with an adhesive or the like. More specifically, among the peripheral edges of the fixing member 50, the left end portion in the Y direction is fixed to the lower end portion in the Z direction on the inner surface of the first side wall 42a.
- the Y direction right end portion of the fixing member 50 is fixed to the Y direction right end portion of the lower surface of the fourth upper frame piece 41d. Both end portions in the X direction of the fixing member 50 are fixed to lower end portions in the Z direction on the inner surfaces of the second and third side walls 42b and 42c, respectively.
- the spacing S between the fixing member 50, the printing surface 11 and the upper surface 4 may not be constant. Further, the fixing member 50, the printing surface 11 and the upper surface 4 may not be parallel.
- the screen plate 30 is preferably constructed using a metal material. This is because in order to maintain the bent shape of the screen plate 30 only with the tension of the screen plate 30, high tensile strength is necessary.
- the metal material include stainless steel.
- the screen plate 30 is preferably configured using a metal material on which a film is formed. This is because the tensile strength can be increased as compared with the screen plate 30 made of only a metal material.
- the coating include a metal coating having corrosion resistance and liquid repellency, such as nickel, and a fluororesin coating, and a metal coating having corrosion resistance and liquid repellency is preferable.
- the fixing member 50 for fixing the screen plate 30 to the frame body 40 is made of a resin material that can be easily extended.
- the resin material include Tetron (registered trademark), nylon, polyester, and rubber.
- the printing apparatus 100 includes a scraper 6 above the screen plate 30 in the Z direction. Further, as shown in FIG. 7, the printing apparatus 100 includes a squeegee 8 that moves in the direction opposite to the moving direction of the scraper 6 and performs printing while pushing the screen plate 30. The scraper 6 and the squeegee 8 are pressed against the screen plate 30 at contact angles ⁇ and ⁇ that are acute in the direction of travel on the screen plate 30 and are individually driven.
- the scraper 6 spreads the printing material on the upper surface of the screen plate 30 and fills the opening pattern 31 with the printing material.
- the squeegee 8 rotates and displaces while pressing the upper surface of the screen plate 30, thereby extruding the printing material filled in the opening pattern 31 and transferring the pattern onto the printing surface 11 of the substrate 10.
- the printing apparatus 100 rotates and displaces the scraper 6 in a state where the printing plate 20 (the screen plate 30, the fixing member 50, and the frame body 40), the base material 10, and the mounting table 3 are fixed without being displaced. In this way, the printing material is spread out. Similarly, the printing material is extruded by rotating and displacing the squeegee 8. By performing the spreading process before the extrusion process, the printing material is uniformly formed on the printing surface 11 of the substrate 10.
- each drive mechanism is provided with a rotation mechanism that rotationally drives a shaft body that supports the scraper 6 and the squeegee 8, and a moving mechanism that moves the shaft body in the YZ plane.
- a rotation mechanism that rotationally drives a shaft body that supports the scraper 6 and the squeegee 8
- a moving mechanism that moves the shaft body in the YZ plane.
- an appropriate mechanism such as a mechanism for rotating and moving the scraper 6 and the squeegee 8 by driving a motor may be used.
- Print procedure The printing apparatus 100 described above prints the printing material on the printing surface 11 of the substrate 10 according to the following procedure. First, with one end of the printing plate 20 held between the clamps 44, the printing plate 20 is rotated counterclockwise around the connection point P from the state shown in FIG.
- the base material 10 is fitted and placed in the groove 5 of the mounting table 3. Then, the vacuum hole 7 is sucked by a vacuum pump (not shown), and the substrate 10 is vacuum-adsorbed in the groove 5.
- the printing plate 20 that has been retracted is connected to the connection point P until the lower surface of the fourth upper frame piece 41d comes into contact with the upper surface of the height adjustment support rod 46. Rotate clockwise around. Thereby, a space S is formed between the printing surface 11 of the substrate 10 and the screen plate 30.
- the scraper 6 is moved from the second flat portion 30c on the right side in FIG. 1 of the screen plate 30 to the vicinity of the connecting portion with the fixing member 50 at the left end portion of the first flat portion 30a through the bent portion 30b. Move. At this time, the printing material is supplied to the upstream side in the moving direction of the scraper 6, and is spread on the entire screen plate 30 by the scraper 6.
- the scraper 6 In the spreading process of spreading the printing material, the scraper 6 is rotated and displaced so that the contact angle ⁇ of the scraper 6 with the upper surface of the screen plate 30 is constant. Thereby, the printing material is uniformly spread on the printing surface 11 and printing can be performed uniformly. Further, the scraper 6 is rotated and displaced so that the pressing force of the scraper 6 against the upper surface of the screen plate 30 is constant. This also allows the printing material to be uniformly spread and printed uniformly.
- the squeegee 8 is moved from the first flat surface portion 30a on the left side of the screen plate 30 through the bent portion 30b to the fixing member 50 at the left end portion of the second flat surface portion 30c. Move to the vicinity of the connecting part.
- the squeegee 8 In the extrusion process of extruding this printing material onto the printing surface 11 through the opening pattern 31, the squeegee 8 is rotated and rotated so that the contact angle ⁇ formed by the printing surface 11 and the tip of the squeegee 8 is constant. Displace. Thereby, since the printing material is uniformly extruded from the screen plate 30, the printing surface 11 can be printed uniformly. Further, the squeegee 8 is rotated and displaced so that the pressing force of the squeegee 8 against the upper surface of the screen plate 30 is constant. Thereby, since a printing material can be spread uniformly, it can print uniformly.
- the screen plate 30 pressed by the squeegee 8 is displaced downward in the Z direction as the screen plate 30 moves relative to the frame body 40. Then, the printing material is transferred to the printing surface 11 of the substrate 10 through the opening pattern 31 of the screen plate 30 shown in FIG. Thereby, a printing layer having a desired pattern is formed on the printing surface 11 of the substrate 10.
- the method of relatively moving the scraper 6, the printing plate 20, the base material 10, and the mounting table 3 in the coating spreading process is not limited. Regardless of which method is applied, the point that the contact angle ⁇ of the scraper 6 with the upper surface of the screen plate 30 is made constant and the pressing force of the scraper 6 with respect to the upper surface of the screen plate 30 is made the same. It is. Note that, due to the structure, it is difficult to make the contact angle ⁇ completely constant, and a slight change is allowed. It is preferable to control so that the change is ⁇ 30% based on the desired contact angle ⁇ .
- the method of moving the squeegee 8 relative to the printing plate 20, the base material 10, and the mounting table 3 is not limited. Regardless of which method is applied, the contact angle ⁇ of the squeegee 8 with respect to the upper surface of the screen plate 30 is made constant and the pressing force of the squeegee 8 against the upper surface of the screen plate 30 is made constant. It is. Note that it is difficult to make the contact angle ⁇ and the pressing force completely constant because of the structure, and some changes are allowed. It is preferable to control so that the change is ⁇ 30% with reference to the desired contact angle ⁇ and the pressing force.
- the tensile strength of the fixing member 50 is set to be smaller than the tensile strength of the screen plate 30 by appropriately setting the material and area of the fixing member 50 and the screen plate 30. More specifically, the tensile strength of the fixing member 50 is preferably 4/5 or less, more preferably 3/5 or less, and even more preferably 1/5 or less that of the screen plate 30. Thereby, the screen plate 30 is fixed so as to be movable relative to the frame body 40.
- the tensile strength of the fixing member 50 made of a resin material such as nylon or polyester is about 400 to 800 N / mm 2
- the tensile strength of the screen plate 30 made of a metal material such as stainless steel is about 1000 to 4000 N / mm. 2 .
- the screen plate 30 made of a metal material When the screen plate 30 made of a metal material is directly fixed to the frame body 40 without using the fixing member 50 made of a resin material, the screen plate 30 made of a metal material has high rigidity, so that the screen plate 30 can be pushed by a squeegee. Is a very small amount (for example, about 0.1 mm). In this case, so-called zero gap printing can be performed in which the distance S between the screen plate 30 and the printing surface 11 is set to be very small. In the zero-gap printing, it is very important to keep the distance S between the screen plate 30 and the printing surface 11 constant. However, since the printing surface 11 of the present embodiment has the bent portion 11b, a very small value. It is difficult to set the interval S that is constant.
- the screen plate 30 is fixed to the frame body 40 via the fixing member 50, and the screen plate 30 is supported so as to be movable relative to the frame body 40.
- the elasticity of the fixing member 50 is given to the high-rigidity screen plate 30, and the distance S between the screen plate 30 and the printing surface 11 can be made relatively large.
- the shape error between the screen plate 30 and the printing surface 11 can be escaped.
- the rigidity of the screen plate 30 remains high, the shape of the bent portion 30b can be maintained only by the tension of the screen plate 30. That is, the printing plate 20 having this configuration has both the characteristics of a highly rigid metal screen plate and the good characteristics of a resin screen plate that is tolerant of shape changes. Can be printed with high accuracy.
- the distance S between the screen plate 30 and the printing surface 11 is preferably 1 mm or more, and more preferably 2 mm or more.
- the interval S is preferably 15 mm or less, and more preferably 10 mm or less.
- the screen plate 30 is pushed in by the squeegee 8 so that printing is easy and separation of the plate is also good.
- the printing apparatus 100 having this configuration is suitable for printing on the base material 10 that is difficult to be formed after printing, particularly when a glass plate is used as the base material 10.
- a thermoplastic resin such as acrylic
- a bent portion or the like can be formed after printing on a flat resin. This is because the molding temperature is relatively low and the printed layer obtained by printing is not easily damaged.
- the base material 10 having a high molding temperature such as glass
- the printed layer is exposed to a high temperature when the bent portion or the like is formed after printing on a flat glass plate. Will be damaged. From the above, it is particularly useful to apply the printing apparatus 100 of this configuration to the base material 10 that needs to be printed after forming a bent portion or the like.
- the printing apparatus 100 having this configuration is excellent in that it can print on the substrate 10 having at least one bent portion 11b on the printing surface 11 and having a bending depth of 10 mm or more.
- the base material 10 and the flat screen plate are buffered, and the printed layer has a uniform thickness and excellent appearance. Can not form. According to this structure, even if it is the base material 10 with a deep bending depth, a uniform printing layer can be formed.
- the printing apparatus 100 having this configuration is particularly excellent in that printing can be performed on the substrate 10 having at least one concave bent portion 11b on the printing surface 11 and having a bending depth of 10 mm or more.
- printing can be performed on the substrate 10 having at least one concave bent portion 11b on the printing surface 11 and having a bending depth of 10 mm or more.
- a uniform printed layer can be formed on the base material 10 having a deep bending depth.
- the thickness deviation of the formed printing layer can be ⁇ 10% with respect to the average thickness of the printing layer.
- the thickness deviation of the printed layer is preferably ⁇ 7%, more preferably ⁇ 5%. Since the printing plate 20 can be held at a substantially constant interval S with respect to the base material 10, a uniform printing layer can be formed on a base material having a deep bending depth.
- the printing apparatus 200 having this configuration rotates and displaces the printing plate 20, the base material 10, and the mounting table 3 in a state where the scraper 6 and the squeegee 8 are fixed without being displaced. And a function of performing the process.
- Other configurations are the same as those of the printing apparatus 100 shown in FIGS.
- the printing apparatus 200 As a mechanism for rotating and displacing the printing plate 20, the base material 10, and the mounting table 3 in a state where the scraper 6 and the squeegee 8 are fixed without being displaced, the printing apparatus 200 is, for example, as shown in FIG. A moving mechanism 60 is provided.
- the moving mechanism 60 drives the printing plate 20, the base material 10, and the mounting table 3 in the above-described coating spreading process and extrusion process.
- the moving mechanism 60 includes a base 61 that defines a vertical plane (YZ plane) and a pair of linear guide rails 62 that are horizontally fixed on the base 61.
- a horizontal moving table 63 is disposed so as to be movable in the horizontal direction (Y direction).
- the horizontal moving table 63 can be moved in the horizontal direction by a ball screw mechanism 65 or the like driven by a horizontal drive motor 64 fixed to the base 61.
- a vertical moving table 68 that is driven by a vertical drive motor 66 and is guided by a pair of linear guide rails 67 and is movable in the vertical direction (Z direction) is disposed.
- the vertical moving table 68 is provided with a swing table 70 that is driven by a swing drive motor 69 and is rotatable in the ⁇ direction about an axis orthogonal to the horizontal direction and the vertical direction.
- the oscillating table 70 is formed in a substantially L shape, and a mounting table 3 (see FIG. 1) on which the base material 10 can be mounted on a protruding portion 71 protruding from the upper part of the oscillating table 70 toward the front side in the figure. ) Is fixed.
- the horizontal moving table 63, the vertical moving table 68, and the swinging table 70 are limited to movement and rotation by a combination of a motor and a ball screw mechanism as long as the mechanism moves in the horizontal direction, moves in the vertical direction, and rotates. Instead, it may be constituted by other horizontal movement mechanisms, other vertical movement mechanisms, and other swing drive mechanisms.
- FIGS. 9A, 9B, and 9C are process explanatory views showing how the mounting table, the base material, and the printing plate are rotated and displaced by the extrusion process by the printing apparatus 200 having the present configuration.
- the mounting table 3 is driven by the moving mechanism 60 illustrated in FIG. 8 in a state where the base material 10 is supported by the mounting table 3.
- the squeegee 8 moves on the screen plate 30 by moving the mounting table 3 to the left in the drawing as shown in FIG. 9B from the initial state shown in FIG.
- FIG. 9C the mounting table 3 is tilted by the moving mechanism 60, and the squeegee 8 is moved from the bent portion 30b of the screen plate 30 to the second plane portion 30c.
- the printing apparatus 200 having this configuration is configured to move and rotate the mounting table 3 by the moving mechanism 60 with respect to the fixed squeegee 8. Therefore, compared to the configuration in which the squeegee 8 is moved and rotated, vibrations and the like are less likely to occur when the printing material is pushed out by the squeegee 8. Moreover, the thickness of the printing layer can be made uniform, and the printing quality can be improved.
- the above-described coating spreading process and extrusion process May be implemented.
- the method of relatively moving the scraper 6 and the squeegee 8, the printing plate 20, the base material 10, and the mounting table 3 in the coating spreading process and the extrusion process is not limited.
- the contact angle ⁇ formed between the printing surface 11 and the scraper 6 and the contact angle ⁇ formed between the printing surface and the squeegee 8 are made constant, and the screen plate 30. The point that the pressing force of the scraper 6 and the squeegee 8 with respect to the upper surface is made constant is the same.
- FIG. 10 is a cross-sectional view of a principal part showing a state where printing is performed by rotating and displacing the squeegee of the printing apparatus 300 of the third configuration example.
- the same members and parts as those shown in FIGS. 1 and 7 are denoted by the same reference numerals, and the description thereof is omitted or simplified.
- the printing apparatus 300 having this configuration prints on the base material 10A having a twist, in which the shape of the bent portion 10b changes along the X direction.
- twist refers to a shape obtained by these because the radius of curvature at the bent portion does not need to be constant and the opening angle does not need to be constant.
- the base 10A has different radii of curvature and opening angles.
- FIG. 11 is a perspective view schematically showing the appearance of a base material 10A having a twist.
- the printed surface 11 of the substrate 10A is connected to the first flat surface portion 11a and the first flat surface portion 11a parallel to the XY plane so as to correspond to the first flat surface portion 10a, the bent portion 10b, and the second flat surface portion 10c. And a second flat surface portion 11c connected to the bent portion 11b.
- the bent portion 11b has a curved shape with a radius of curvature R1 on the near side in FIG. 11, which is one end portion in the X direction, and the printed surface on the far side in FIG. 11, which is the other end portion in the X direction.
- 11 has a curved shape with a curvature radius R2 smaller than the curvature radius R1.
- the bent portion 11b has a shape in which the radius of curvature continuously changes from R1 to R2 along the X direction.
- the bent portion 11b has a shape obtained by bending and twisting a flat plate material.
- FIG. 12 is a perspective view of a printing plate on which a substrate 10 having a twist as shown in FIG. 11 is printed.
- the printing plate 20A in this case includes a screen plate 30A having an opening pattern 31 and a frame body 40A to which the screen plate 30A is fixed via a fixing member 50A.
- the screen plate 30A includes a plurality of openings in which an opening pattern 31 is formed across the first flat surface portion 30a, the bent portion 30b, and the second flat surface portion 30c.
- the bent portion 30b of the screen plate 30A is configured such that the radius of curvature along the X direction continuously changes from R1 to R2.
- FIG. 13 is a sectional view taken along line XIII-XIII in FIG. 12, and FIG. 14 is a sectional view taken along line XIV-XIV in FIG.
- the bent portion 30b of the screen plate 30A has different radii of curvature along the X direction so that the radii of curvature at one end and the other end in the X direction shown in FIGS. 13 and 14 are R1 and R2.
- the curvature radius of the lower surface (the surface facing the printing plate) of the screen plate 30A is shown.
- the actual plate thickness is very thin, and the curvature radius is substantially the same on the front and back surfaces of the screen plate 30A.
- FIG. 15 is a top view of the screen plate 30A shown in FIG.
- the imaginary lines L1, L2, and L3 shown in FIGS. 12 and 15 are printed surfaces when both end portions in the X direction on the printed surface of the bent portion 10b of the substrate 10A are viewed from the side in the X direction. It is possible to make a straight line connecting ends that match the normal direction perpendicular to the tangent line. Therefore, on one imaginary line, it has the to-be-printed surface of the same direction where all the normal directions correspond. That is, the imaginary lines L1, L2, and L3 are contact lines that contact the tip of the squeegee 8 via the screen plate 30A when the squeegee 8 is rotated and straightened.
- the imaginary line L1 indicates the boundary between the first plane part 30a and the bent part 30b
- the imaginary line L3 indicates the boundary between the bent part 30b and the second plane part 30c.
- the virtual line L2 is an intermediate line between the virtual lines L1 and L2, and the normal direction is the same on the virtual line L2.
- the longitudinal direction of the squeegee 8 is made parallel to the X direction in the region of the first plane portion 30a of the screen plate 30A.
- the squeegee 8 reaches the bent portion 30b, the squeegee 8 is tilted and gradually tilted from the state parallel to the virtual line L1 so as to be parallel to the virtual line L2.
- the longitudinal direction of the squeegee 8 is made to coincide with the virtual line L2.
- the longitudinal direction of the squeegee 8 is made to coincide with the virtual line L3.
- the squeegee 8 moves, the squeegee 8 is continuously rotated in the XY plane shown in FIG. 15, and the surface of the substrate 10A against which the squeegee 8 is pressed through the screen plate 30A (the object shown in FIG. 10).
- the printing surface 11) is always oriented in the same normal direction.
- the squeegee 8 is always pressed against the printing surface 11 of the base material 10A having a torsional component in the same direction.
- the contact angle ⁇ formed by the printing surface 11 and the tip of the squeegee 8 is constant, and the printing material is uniformly pushed out to the printing surface 11 so that good printing is performed. Therefore, it is possible to obtain a printing state that is homogeneous and excellent in aesthetics.
- the squeegee 8 is connected to a squeegee driving mechanism constituted by a motor (not shown) or the like, and is changed to a desired angle or position along with the movement in the Y direction shown in FIG. 10 by driving the squeegee driving mechanism. .
- the inclination angle of the squeegee 8 from the X direction is not limited to continuously changing with the movement in the Y direction from the imaginary line L1 to L3.
- the squeegee 8 may be moved from the state parallel to the virtual line L1 to the virtual lines L2 and L3 from the state parallel to the virtual line L1 before reaching the virtual line L1.
- the guide member 81 is formed on the second side wall 42b and the third side wall 42c of the frame body of the printing plate 20A.
- guide surfaces 83 are formed which are in rolling contact with cam followers 85 provided at both ends in the rotation axis direction, which is the longitudinal direction (X direction) of the squeegee 8.
- the guide surface 83 is formed along the movement path of the squeegee 8 in the YZ plane, and the cam follower 85 rolls along the guide surface 83 to guide the squeegee 8.
- At least one of the cam follower 85 and the guide surface 83 can be smoothly moved with little vibration by providing a flexible material such as rubber on the rolling contact surface of each other.
- the cam follower 85 may be configured with a roller or a pin.
- the squeegee 8 is maintained with the rotation mechanism and the movement mechanism, and by the rolling of the guide surface 83 of the guide member 81 and the cam follower 85, the squeegee 8 can maintain the angle and maintain the pressing force to the screen plate 30A. Enhanced.
- FIG. 16 is a cross-sectional view of a main part of the printing apparatus 300 having this configuration.
- the screen plate 30A is supported by the frame body 40A via the fixing member 50A.
- the curvature radius r2 of the bent portion 30b is preferably smaller than the curvature radius r1 of the bent portion 11b on the printing surface of the substrate 10A.
- the center O 1 of the radius of curvature at the bent portion 11b of the base material 10A and the center of curvature O 2 at the bent portion 30b of the screen plate 30A do not necessarily have to coincide with each other.
- interval of the overlapping direction of the screen plate 30A and the base material 10A becomes narrow gradually toward the printing direction from the clearance gap in a printing start part. That is, if the distance at the start of printing is d 1 and the distance d 2 near the bent portion is d 1 > d 2 . According to the above configuration, the separation of the plate becomes good, and it can be expected to improve the printing quality and accuracy.
- FIG. 17 is a cross-sectional view of the main part showing a state where printing is performed by rotating and displacing the squeegee of the printing apparatus 400 of the fourth configuration example.
- the printing apparatus 400 having this configuration has the same configuration as that of the printing apparatus 300 except that the pressing apparatus 87 that faces the guide surface 83 of the guide member 81 is provided in the printing apparatus 300 according to the third configuration example.
- the holding member 87 has a guide surface 89 that is parallel to the guide surface 83 of the guide member 81, and the gap between the guide surface 83 and the guide surface 89 is set to a width W that is substantially the same as the outer diameter of the cam follower 85.
- the cam follower 85 of the squeegee 8 is inserted between the guide surface 83 of the guide member 81 and the guide surface 89 of the pressing member 87.
- the squeegee 8 moves while rolling the cam follower 85 between the guide surfaces 83 and 89.
- the cam follower 85 is sandwiched between the guide surfaces 83 and 89, blurring due to movement of the squeegee 8 is reduced, and printing quality is improved.
- grooves in which the cam followers 85 (or rollers, pins) at both ends in the longitudinal direction of the squeegee 8 roll may be formed in the second side wall 42b and the third side wall 42c.
- the printing device 300 of the third configuration example and the printing device 400 of the fourth configuration example are both shown with respect to the configuration of the squeegee 8, but the same configuration can be applied to the scraper 6 as well. The effect is obtained. In addition, separate moving paths may be formed for the squeegee 8 and the scraper 6.
- the interval in the overlapping direction between the screen plate 30A and the base material 10A gradually decreases in the printing direction from the gap at the printing start portion.
- FIG. 18 is a cross-sectional view of an essential part showing a configuration example of another mounting table in the printing apparatus 500 of the fifth configuration example.
- the printing apparatus 500 having this configuration is provided with a retracting mechanism on the mounting table 3A instead of providing the recess 9 (see, for example, FIG. 1) of the mounting table 3 in each of the above-described configuration examples.
- the mounting table 3A is provided as retraction blocks 3b and 3c that can be lifted and lowered with respect to the mounting table main body 3a by separating the portion supporting the end of the base material 10 from the mounting table main body 3a.
- the evacuation block 3b supports the end portion of the base material 10 facing the recess 9 of the mounting table 3 described above, and supports the center portion of the base material 10 by a lifting motor or the like (not shown). Descend.
- the retracting block 3c also supports the end portion of the base material 10 and descends with respect to the mounting table main body 3a.
- the end portions of the base material 10 supported by the mounting table main body 3a project from the end portions 91 and 93 of the mounting table main body 3a. Therefore, after the vacuum suction is released, the protruding portion of the base material 10 can be lifted upward to easily remove the base material 10 from the mounting table main body 3a.
- the removal work of the base material 10 can be automated, and the sample can be efficiently collected.
- retracting block 3b is lowered from the mounting table main body 3a
- a configuration in which the mounting table main body 3a is lifted from the retracting block 3b may be employed. That is, the retracting blocks 3b and 3c may be any mechanism that moves up and down relatively with respect to the mounting table main body 3a.
Abstract
Description
(1) 開口パターンを有するスクリーン版と、前記スクリーン版が固定される枠体と、を備える印刷版であって、
前記スクリーン版は、少なくとも1つの屈曲部を有し、且つ、前記枠体に対して相対移動可能に固定される、ことを特徴とする印刷版。
(2) 前記印刷版は、前記スクリーン版の周縁に接続され、その周縁が前記枠体に固定される固定部材を更に備え、
前記固定部材の伸張強度が前記スクリーン版の伸張強度よりも小さく設定されることで、前記スクリーン版は前記枠体に対して相対移動可能に固定される、(1)に記載の印刷版。
(3) 前記固定部材は樹脂材料からなる、(2)に記載の印刷版。
(4) 前記スクリーン版は金属材料からなる、(2)又は(3)に記載の印刷版。
(5) 前記スクリーン版は少なくとも1つの平面部を備える、(1)~(4)の何れか1つに記載の印刷版。
(6) 前記スクリーン版は全面が湾曲している、(1)~(4)の何れか1つに記載の印刷版。
(7) 少なくとも1つの屈曲部を有する被印刷面を備える基材が載置される載置台と、
前記載置台の上方に配置される、(1)~(6)の何れか1つに記載の印刷版と、
前記印刷版の前記スクリーン版の上方に配置され、且つ、前記スクリーン版の前記開口パターンを介して印刷材料を前記被印刷面に押し出すスキージと、を備えることを特徴とする印刷装置。
(8) 前記スクリーン版及び前記基材の少なくとも1つの屈曲部は、凹曲部である、(7)に記載の印刷装置。
(9) 前記被印刷面と前記スキージとが成す角度が一定となるように、前記スキージと、前記スクリーン版、前記基材、及び前記載置台と、を相対移動させるスキージ駆動機構を備える、(7)又は(8)に記載の印刷装置。
(10) 前記スクリーン版に対する前記スキージの押圧力が一定となるように、前記スキージと、前記スクリーン版、前記基材、及び前記載置台と、を相対移動させるスキージ駆動機構を備える、(7)~(9)の何れか1つに記載の印刷装置。
(11) 前記スキージ駆動機構は、前記スキージを回転可能とする回転軸を備える、(9)又は(10)に記載の印刷装置。
(12) 前記印刷版の前記スクリーン版の上方に配置され、且つ、前記印刷材料を前記スクリーン版上に塗り広げるスクレーパを備える、(7)~(11)の何れか1つに記載の印刷装置。
(13) 前記印刷版は、前記回転軸方向両端を支持するガイド面を有するガイド部材を有し、
前記スキージは、該回転軸方向両端に設けたカムフォロアが前記ガイド面に転がり接触しながら前記相対移動する、(11)又は(12)に記載の印刷装置。
(14) 前記ガイド部材に対峙して設けられ、前記ガイド面との間に前記カムフォロアを案内する隙間を形成する押さえ部材を備える、(13)に記載の印刷装置。
(15) 前記載置台は、前記基材の中央部を支持する載置台本体と、前記基材の端部を支持する退避ブロックとを有し、前記退避ブロックが、前記載置台本体に対して相対的に昇降移動する、請求項(7)~(14)の何れか1つに記載の印刷装置。
(16) 前記基材はガラス板である、(7)~(15)の何れか1つに記載の印刷装置。
(17) 少なくとも1つの屈曲部を有する被印刷面と、前記被印刷面に形成された印刷層と、を備える基材の製造方法であって、
開口パターンを有するスクリーン版と、前記スクリーン版が固定される枠体と、を備え、前記基材の上方に配置される印刷版と、
前記印刷版の前記スクリーン版の上方に配置されるスキージと、
を備え、
前記スクリーン版は、少なくとも1つの屈曲部を有し、且つ、前記枠体に対して相対移動可能に固定され、
前記スキージにより、前記スクリーン版の開口パターンを介して印刷材料を前記被印刷面に押し出す、ことを特徴とする基材の製造方法。
(18) 前記印刷材料を前記被印刷面に押し出す際に、前記被印刷面と前記スキージとが成す角度が一定となるように、前記スキージと、前記スクリーン版及び前記基材と、を相対移動させる、(17)に記載の基材の製造方法。
(19) 前記印刷材料を前記被印刷面に押し出す際に、前記スクリーン版に対する前記スキージの押圧力が一定となるように、前記スキージと、前記スクリーン版及び前記基材と、を相対移動させる、(17)又は(18)に記載の基材の製造方法。
(20) 前記印刷版の前記スクリーン版の上方に配置されるスクレーパを備え、
前記印刷材料を前記被印刷面に押し出す前に、前記スクレーパにより、前記印刷材料を前記スクリーン版上に塗り広げる、(17)~(19)の何れか1項に記載の基材の製造方法。
(21) 前記印刷材料を前記スクリーン版上に塗り広げる際に、前記スクリーン版に対する前記スクレーパの接触角度が一定となるように、前記スクレーパと、前記スクリーン版と、を相対移動させる、(20)に記載の基材の製造方法。
(22) 前記印刷材料を前記スクリーン版上に塗り広げる際に、前記スクリーン版に対する前記スクレーパの押圧力が一定となるように、前記スクレーパと、前記スクリーン版と、を相対移動させる、(20)又は(21)に記載の基材の製造方法。
(23) 少なくとも1つの屈曲部を有する被印刷面と、前記被印刷面に形成された印刷層と、を備え、前記屈曲部の曲げ深さが10mm以上であることを特徴とする基材。
(24) 前記少なくとも1つの屈曲部が凹曲形状である(23)に記載の基材。
(25) 前記印刷層の厚さ偏差が、平均厚さに対して±10%である(23)又は(24)に記載の基材。
図1に第1構成例の印刷装置100であって、スクレーパが回転及び変位して印刷材料をスクリーン版上に塗り広げる様子を示す要部断面図である。
印刷装置100は、被印刷面11を有する基材10が載置される載置台3と、載置台3の上方に配置される印刷版20と、印刷版20上で移動するスクレーパ6及び後述するスキージと、を備える。以後、基材10の肉厚方向(図1の上下方向)をZ方向、Z方向に垂直でスクレーパ6の移動する方向をY方向、Z方向とY方向に直交する方向をX方向と呼称する。
基材10は、被印刷面11(上面)と、被印刷面11に対向する下面12と、を有する。本構成例の基材10は、被印刷面11及び下面12が互いに平行であるが、必ずしも平行である必要はない。基材10は、三次元に湾曲した形状を有する屈曲基材であり、被印刷面11の少なくとも一部に屈曲部を有する。「屈曲部」とは、その平均曲率半径が無限大ではない部分を意味し、具体的には曲率半径が1000mm以下である部位を意味する。なお、基材10は、基材10の全面が湾曲した形状であってもよい。
ここで、第一平面部10a、屈曲部10b、及び第二平面部10cを有する基材10のX方向寸法をa、Y方向寸法をb、肉厚をtとする。また、図3に示すように、基材10が曲げられた方向(本例ではZ方向)における、基材10の両端間の距離を曲げ深さhとする。曲げ深さhは、5mm以上500mm以下が好ましく、10mm以上300mm以下がより好ましく、20mm以上300mm以下が更に好ましく、10mm以上100mm以下が特に好ましい。
なお、被印刷面11には、少なくとも一つの屈曲部11bが形成されればよく、屈曲部11bの位置、数、及び形状等は限定されない。例えば、屈曲部11bは、図1に示すような被印刷面11が凹面となる凹曲形状ではなく、被印刷面11が凸面となる凸曲形状であってもよい。
図1に示すように、載置台3の上面4には、基材10と略同一形状の溝5が形成される。基材10は、この溝5に載置された状態で、基材10の被印刷面11が載置台3の上面4よりもZ方向上方に僅かに突出する。この基材10の突出は、スクリーン版30が載置台3の上面4等に触れることを防ぎ、基材10の印刷材料による汚染を防ぐ効果がある。基材10の被印刷面11が載置台3の上面4からの突出量は、0.1~1mmが好ましく、0.1~0.5mm以下がより好ましく、0.1~0.2mmが更に好ましい。
更に基材10がXY面内などに動きにくいように載置台3に突き当て部材を設けてもよい。これにより基材10の端面が固定され、印刷工程を実施しても基材10が動きにくくなり印刷の精度が向上する。
載置台3のZ方向上方には、基材10の被印刷面11にスクリーン印刷を実施する印刷版20が配置される。
印刷版20は、開口パターン31を有するスクリーン版30と、スクリーン版30がその内部に固定される枠体40と、内周部がスクリーン版30の周縁に接続され、外周部が枠体に固定される固定部材50と、を備える。
印刷装置100は、図1に示すように、スクリーン版30のZ方向上方にスクレーパ6を備える。また、印刷装置100は、図7に示すように、スクレーパ6の移動方向の逆方向に移動して、スクリーン版30を押し込みながら印刷するスキージ8を備える。これらスクレーパ6とスキージ8は、スクリーン版30上の進行方向先方が鋭角となる接触角度α、βでスクリーン版30に押し当てられ、それぞれ個別に駆動される。
以上説明した印刷装置100は、次の手順で基材10の被印刷面11に印刷材料を印刷する。
まず、印刷版20の一端部をクランプ44に挟持させた状態で、図1に示す状態から接続点Pを中心に反時計方向に回転させ、印刷版20を載置台3上から待避させる。
次に、第2構成例の印刷装置を説明する。
本構成の印刷装置200は、スクレーパ6やスキージ8を変位させず固定した状態で、印刷版20と、基材10と、載置台3と、を回転及び変位させることで、塗り広げ工程と押し出し工程とを実施する機能を有する。他の構成は図1、図7に示す印刷装置100と同様である。
印刷装置200は、スクレーパ6やスキージ8を変位させず固定した状態で、印刷版20と、基材10と、載置台3と、を回転及び変位させる機構として、例えば、図8に示すような移動機構60を備える。
本構成の印刷装置200は、基材10が載置台3に支持された状態で、載置台3が図8に示す移動機構60により駆動される。スキージ8は、図9(a)に示す初期状態から、図9(b)に示すように載置台3を図中左方に移動させることで、スクリーン版30上を移動する。そして、図9(c)に示すように、移動機構60により載置台3を傾斜させて、スキージ8をスクリーン版30の屈曲部30bから第二平面部30cに移動させる。
次に、第3構成例の印刷装置を説明する。
図10に第3構成例の印刷装置300の、スキージが回転及び変位して印刷する様子を示す要部断面図である。なお、以降の説明においては、図1,図7に示すものと同一の部材や部位に対しては、同一の符号を付与することで、その説明を省略又は簡略化する。
基材10Aの被印刷面11は、第一平面部10a、屈曲部10b、及び第二平面部10cに対応するように、XY面に平行な第一平面部11a、第一平面部11aに接続された屈曲部11bと、屈曲部11bに接続された第二平面部11cと、を有する。
この場合の印刷版20Aは、開口パターン31を有するスクリーン版30Aと、スクリーン版30Aが固定部材50Aを介して固定される枠体40Aと、を備える。
ここで、図12,図15に示す仮想線L1,L2,L3は、基材10Aの屈曲部10bの被印刷面におけるX方向両端部を、それぞれX方向に側面視した場合に、被印刷面の接線に垂直な法線方向が一致する端部同士を結んだ直線とできる。したがって、一本の仮想線上では、法線方向が全て一致する同じ向きの被印刷面を有する。つまり、仮想線L1,L2,L3は、スキージ8を回転、直進させた際の、スキージ8の先端部がスクリーン版30Aを介して接触する接触線である。仮想線L1は、第一平面部30aと屈曲部30bとの境界、仮想線L3は、屈曲部30bと第二平面部30cとの境界を示している。仮想線L2は、仮想線L1とL2の中間の線であり、仮想線L2線上では法線方向が同じ向きとなっている。
スクリーン版30Aは、固定部材50Aを介して枠体40Aに支持される。このスクリーン版30Aの設計において、屈曲部30bの曲率半径r2は、基材10Aの被印刷面における屈曲部11bの曲率半径r1に比べて小さいことが好ましい。基材10Aの屈曲部11bにおける曲率半径の中心O1と、スクリーン版30Aの屈曲部30bにおける曲率半径の中心O2とは、必ずしも一致する必要はない。また、スクリーン版30Aと基材10Aとの重ね方向の間隔は、印刷開始部における隙間から、印刷方向に向けて徐々に狭くなることが好ましい。つまり、印刷開始時点における距離をd1、屈曲部付近の距離d2とすると、d1>d2となる。
上記構成によれば、版離れが良好となり、印刷の品質向上、精度向上を期待できる。
次に、第4構成例の印刷装置を説明する。
図17は第4構成例の印刷装置400の、スキージが回転及び変位して印刷する様子を示す要部断面図である。
次に、第5構成例の印刷装置を説明する。
図18は第5構成例の印刷装置500における他の載置台の構成例を示す要部断面図である。
本構成の印刷装置500は、前述の各構成例における載置台3の窪み9(例えば図1参照)を設ける代わりに、載置台3Aに退避機構を設けている。
退避ブロック3bは、前述の載置台3の窪み9に対面する基材10の端部を支持し、図示しない昇降用モータ等によって、基材10の中央部を支持する載置台本体3aに対して下降する。同様に、退避ブロック3cも基材10の端部を支持し、載置台本体3aに対して下降する。
3a 載置台本体
3b,3c 退避ブロック
4 上面
5 溝
6 スクレーパ
7 真空孔
8 スキージ
9 窪み
10,10A 基材
10a 第一平面部
10b 屈曲部
10c 第二平面部
11 被印刷面
11a 第一平面部
11b 屈曲部
11c 第二平面部
12 下面
20 印刷版
30,30A スクリーン版
30a 第一平面部
30b 屈曲部
30c 第二平面部
31 開口パターン
40,40A 枠体
41 上枠
41a 第一上枠片(上枠片)
41b 第二上枠片(上枠片)
41c 第三上枠片(上枠片)
41d 第四上枠片(上枠片)
42a 第一側壁(側壁)
42b 第二側壁(側壁)
42c 第三側壁(側壁)
43a,43c 下面
44 クランプ
45 支持棒
46 高さ調整支持棒
50 固定部材
60 移動機構
61 基台
62 リニアガイドレール
63 水平移動台
64 水平駆動モータ
65 ボールねじ機構
66 垂直駆動モータ
67 リニアガイドレール
68 垂直移動台
69 揺動駆動モータ
70 揺動台
71 突出部
81 ガイド部材
83 ガイド面
85 カムフォロア
87 押さえ部材
89 ガイド面
100,200,300,400 印刷装置
L1,L2,L3 仮想線
P 接続点
S 間隔
Claims (25)
- 開口パターンを有するスクリーン版と、前記スクリーン版が固定される枠体と、を備える印刷版であって、
前記スクリーン版は、少なくとも1つの屈曲部を有し、且つ、前記枠体に対して相対移動可能に固定される、
ことを特徴とする印刷版。 - 前記印刷版は、前記スクリーン版の周縁に接続され、その周縁が前記枠体に固定される固定部材を更に備え、
前記固定部材の伸張強度が前記スクリーン版の伸張強度よりも小さく設定されることで、前記スクリーン版は前記枠体に対して相対移動可能に固定される、請求項1に記載の印刷版。 - 前記固定部材は樹脂材料からなる、請求項2に記載の印刷版。
- 前記スクリーン版は金属材料からなる、請求項2又は3に記載の印刷版。
- 前記スクリーン版は少なくとも1つの平面部を備える、請求項1~4の何れか1項に記載の印刷版。
- 前記スクリーン版は全面が湾曲している、請求項1~4の何れか1つに記載の印刷版。
- 少なくとも1つの屈曲部を有する被印刷面を備える基材が載置される載置台と、
前記載置台の上方に配置される、請求項1~6の何れか1項に記載の印刷版と、
前記印刷版の前記スクリーン版の上方に配置され、且つ、前記スクリーン版の前記開口パターンを介して印刷材料を前記被印刷面に押し出すスキージと、を備えることを特徴とする印刷装置。 - 前記スクリーン版及び前記基材の少なくとも1つの屈曲部は、凹曲部である、請求項7に記載の印刷装置。
- 前記被印刷面と前記スキージとが成す角度が一定となるように、前記スキージと、前記スクリーン版、前記基材、及び前記載置台と、を相対移動させるスキージ駆動機構を備える、請求項7又は8に記載の印刷装置。
- 前記スクリーン版に対する前記スキージの押圧力が一定となるように、前記スキージと、前記スクリーン版、前記基材、及び前記載置台と、を相対移動させるスキージ駆動機構を備える、請求項7~9の何れか1項に記載の印刷装置。
- 前記スキージ駆動機構は、前記スキージを回転可能とする回転軸を備える、請求項9又は10に記載の印刷装置。
- 前記印刷版の前記スクリーン版の上方に配置され、且つ、前記印刷材料を前記スクリーン版上に塗り広げるスクレーパを備える、請求項7~11の何れか1項に記載の印刷装置。
- 前記印刷版は、前記回転軸方向両端を支持するガイド面を有するガイド部材を有し、
前記スキージは、該回転軸方向両端に設けたカムフォロアが前記ガイド面に転がり接触しながら前記相対移動する、請求項11又は12に記載の印刷装置。 - 前記ガイド部材に対峙して設けられ、前記ガイド面との間に前記カムフォロアを案内する隙間を形成する押さえ部材を備える、請求項13に記載の印刷装置。
- 前記載置台は、前記基材の中央部を支持する載置台本体と、前記基材の端部を支持する退避ブロックとを有し、前記退避ブロックが、前記載置台本体に対して相対的に昇降移動する、請求項7~14の何れか1項に記載の印刷装置。
- 前記基材はガラス板である、請求項7~15の何れか1項に記載の印刷装置。
- 少なくとも1つの屈曲部を有する被印刷面と、前記被印刷面に形成された印刷層と、を備える基材の製造方法であって、
開口パターンを有するスクリーン版と、前記スクリーン版が固定される枠体と、を備え、前記基材の上方に配置される印刷版と、
前記印刷版の前記スクリーン版の上方に配置されるスキージと、
を備え、
前記スクリーン版は、少なくとも1つの屈曲部を有し、且つ、前記枠体に対して相対移動可能に固定され、
前記スキージにより、前記スクリーン版の開口パターンを介して印刷材料を前記被印刷面に押し出す、ことを特徴とする基材の製造方法。 - 前記印刷材料を前記被印刷面に押し出す際に、前記被印刷面と前記スキージとが成す角度が一定となるように、前記スキージと、前記スクリーン版及び前記基材と、を相対移動させる、請求項17に記載の基材の製造方法。
- 前記印刷材料を前記被印刷面に押し出す際に、前記スクリーン版に対する前記スキージの押圧力が一定となるように、前記スキージと、前記スクリーン版及び前記基材と、を相対移動させる、請求項17又は18に記載の基材の製造方法。
- 前記印刷版の前記スクリーン版の上方に配置されるスクレーパを備え、
前記印刷材料を前記被印刷面に押し出す前に、前記スクレーパにより、前記印刷材料を前記スクリーン版上に塗り広げる、請求項17~19の何れか1項に記載の基材の製造方法。 - 前記印刷材料を前記スクリーン版上に塗り広げる際に、前記スクリーン版に対する前記スクレーパの接触角度が一定となるように、前記スクレーパと、前記スクリーン版と、を相対移動させる、請求項20に記載の基材の製造方法。
- 前記印刷材料を前記スクリーン版上に塗り広げる際に、前記スクリーン版に対する前記スクレーパの押圧力が一定となるように、前記スクレーパと、前記スクリーン版と、を相対移動させる、請求項20又は21に記載の基材の製造方法。
- 少なくとも1つの屈曲部を有する被印刷面と、前記被印刷面に形成された印刷層と、を備え、前記屈曲部の曲げ深さが10mm以上であることを特徴とする基材。
- 前記少なくとも1つの屈曲部が凹曲形状である請求項23に記載の基材。
- 前記印刷層の厚さ偏差が、平均厚さに対して±10%である請求項23又は24に記載の基材。
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DE112016005300.2T DE112016005300B4 (de) | 2015-11-18 | 2016-10-31 | Druckplatte, Druckvorrichtung und Verfahren zum Herstellen eines Substrats |
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CN107757165A (zh) * | 2017-10-27 | 2018-03-06 | 安徽省蚌埠华益导电膜玻璃有限公司 | 一种曲面玻璃丝网印刷工艺 |
JP2019018384A (ja) * | 2017-07-12 | 2019-02-07 | サカエ理研工業株式会社 | スクリーン印刷機 |
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TWI792050B (zh) * | 2020-06-17 | 2023-02-11 | 日商微技中心股份有限公司 | 印刷裝置及印刷方法 |
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Also Published As
Publication number | Publication date |
---|---|
TW201720670A (zh) | 2017-06-16 |
CN211106185U (zh) | 2020-07-28 |
JPWO2017086137A1 (ja) | 2018-08-30 |
US20180264799A1 (en) | 2018-09-20 |
US20200156364A1 (en) | 2020-05-21 |
US10576731B2 (en) | 2020-03-03 |
JP6540822B2 (ja) | 2019-07-10 |
DE112016005300T5 (de) | 2018-08-02 |
TWI701150B (zh) | 2020-08-11 |
CN208867735U (zh) | 2019-05-17 |
DE112016005300B4 (de) | 2021-09-16 |
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