WO2013061438A1 - Plaque de sérigraphie - Google Patents

Plaque de sérigraphie Download PDF

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Publication number
WO2013061438A1
WO2013061438A1 PCT/JP2011/074788 JP2011074788W WO2013061438A1 WO 2013061438 A1 WO2013061438 A1 WO 2013061438A1 JP 2011074788 W JP2011074788 W JP 2011074788W WO 2013061438 A1 WO2013061438 A1 WO 2013061438A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal mask
air
frame
elastic force
moving
Prior art date
Application number
PCT/JP2011/074788
Other languages
English (en)
Japanese (ja)
Inventor
久保田　真司
章稔 木村
昌文 土屋
山本　晃
Original Assignee
株式会社メイコー
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社メイコー filed Critical 株式会社メイコー
Priority to PCT/JP2011/074788 priority Critical patent/WO2013061438A1/fr
Publication of WO2013061438A1 publication Critical patent/WO2013061438A1/fr

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Classifications

    • 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
    • B41F15/36—Screens, Frames; Holders therefor flat

Definitions

  • the present invention relates to a screen printing plate used for surface paste mounting solder paste printing by a screen printing method.
  • a conventional screen printing plate is formed by attaching a sheet made of polyester fiber or the like called “ ⁇ ” to one side of a frame having a substantially rectangular frame structure, and attaching a metal metal mask to this sheet It had been.
  • the printing plate is poor in handleability because these frames, sheets, and metal masks are integrally formed by adhesion or the like and it is necessary to secure a certain amount of space for storage. Further, in the printing plate production process, it is necessary to first attach a sheet to the frame, and further adhere a metal mask, which results in a large number of work steps and poor productivity.
  • a printing plate in which a sheet is not required and a metal mask can be directly attached to and detached from the frame, resulting in a reduction in storage space (see, for example, Patent Document 1).
  • a metal mask is directly attached to a frame, and tension is applied to the metal mask by pulling the metal mask obliquely downward. The metal mask is pulled and a pressed state using the air pressure in the air tube is formed in order to maintain the tension.
  • the present invention provides a screen printing plate that can hold the tension of a metal mask constant over a long period of time, eliminates the need for a sheet, reduces the number of parts, and reduces the storage space.
  • the present invention relates to a metal plate-shaped metal mask, a printing region formed at a substantially central portion of the metal mask and including a plurality of filling holes for filling a paste material to be printed on a substrate, and a periphery of the metal mask.
  • a first holding base provided with an engaging portion that is provided on the frame, substantially surrounds the printing area at the peripheral edge, and directly engages with the peripheral edge.
  • the metal is provided by the engagement portion by moving the first moving pedestal itself in the direction of the plate surface of the metal mask while releasing contact with the first moving pedestal while being in contact with the first moving pedestal.
  • a first elastic body that holds a tensioned state with respect to the mask, and a contact portion that is provided on the frame and substantially surrounds the printing area on the inner side of the first moving base and contacts the back surface of the metal mask.
  • a contact portion that is provided on the frame and substantially surrounds the printing area on the inner side of the first moving base and contacts the back surface of the metal mask.
  • a second elastic body that holds the pressed state against the metal mask by the contact portion, and a switch for switching compression and release of the elastic force against the elastic force of the first and second elastic bodies provided on the frame.
  • a screen printing plate comprising switching means.
  • the first and second elastic bodies are first and second springs arranged to expand and contract in a moving direction of the first and second moving bases, respectively, and the switching means Substantially surrounds the first moving base, and the air supply causes the first spring to swell against the elastic force, while the first spring releases the elastic force by air discharge.
  • the first air tube that contracts in the extending direction and the second moving base are substantially surrounded, and the second spring expands in a contracting direction against its elastic force when air is supplied, while the second air swell expands in the contracting direction.
  • the second spring has a second air tube that releases its elastic force and contracts in the extending direction.
  • the switching means performs air supply or air discharge stepwise with a time difference with respect to the first and second air tubes.
  • the switching means discharges air from the second air tube after discharging air from the first air tube when discharging air.
  • the switching means supplies air to the first air tube after supplying air to the second air tube during air supply.
  • the cover is provided on the frame and sandwiches the peripheral edge of the metal mask between the frame and the outer periphery of the engagement part, and a plurality of the masks are formed at intervals along the peripheral edge of the cover.
  • a pin that is provided in the first moving pedestal and is inserted into the pin hole and that is prevented from being removed from the pin hole as the first moving pedestal moves.
  • the metal mask has a plurality of through holes that intermittently penetrate the metal mask along a portion where the contact portion abuts.
  • the first movable pedestal itself is moved in the direction of the plate surface of the metal mask, the metal mask is pulled by the claw portion, and this tensile state is maintained by releasing the elastic force of the first spring, Further, the second moving base itself is moved in the plate thickness direction of the metal mask, the metal mask is pressed by the contact portion, and this pressed state is held by releasing the elastic force of the second spring. Therefore, the elastic force of the first and second springs increases the strong tension that combines the direct tensile force in the plate surface direction on the metal mask and the direct pressing force in the plate thickness direction on the metal mask. It can be kept semi-permanently constant over time.
  • first and second air tubes substantially surround the first moving base and the second moving base, even if the first and second springs having high elastic force are used, The release of the tensile force by the first spring and the release of the pressing force by the second spring can be easily performed by contracting the spring by the air pressure of the air tube. Can be uniformly applied to the entire metal mask with a simple configuration.
  • the metal mask is fixed to the frame side by directly engaging with the engaging portion of the first moving base, a conventional sheet ( ⁇ ) is unnecessary, and further, the first moving base is further eliminated. Both the member that applies tension in the plate surface direction of the metal mask and the member that holds the metal mask by the engaging portion are provided. Therefore, the number of parts can be reduced and the manufacturing process can be simplified.
  • the metal mask can be easily detached from the frame by engaging and releasing the metal mask by the engaging portion of the first moving base, a plurality of metal masks can be attached to and detached from the common frame 4. Therefore, the storage space can be reduced as compared with the conventional case where the sheet, the metal mask, and the frame are integrated and used.
  • FIG. 3 is a transparent top view showing the paths of the first and second air tubes of FIG. 2 as seen through the top surface of the frame.
  • FIG. 6 is a see-through perspective view showing the inside of the frame in the state of FIG.
  • perspective top view which showed the inside of the flame
  • FIG. 10 is a see-through perspective view illustrating the inside of the frame in the state of FIG. It is the see-through
  • FIG. 1 is a top view showing the screen printing plate 1.
  • the screen printing plate 1 is generally composed of a metal mask 2 and a frame 4.
  • the metal mask 2 is formed, for example, by processing a metal such as stainless steel into a substantially rectangular plate shape, and a printing region 6 is formed at a substantially central portion of the plate surface.
  • a large number of filling holes 8 penetrating the metal mask 2 are formed in the printing area 6, and the filling holes 8 are used for filling a substrate with a paste material (for example, solder paste) when printing on the printing area 6. .
  • the shape of the filling hole 8 and the position of the filling hole 8 in the metal mask 2 are different for each metal mask 2, and the metal mask 2 having the specifications required for the substrate is selectively used when the substrate is manufactured.
  • a reinforcing plate may be attached to each side of the metal mask 2 having a substantially rectangular shape so that the metal mask 2 having a small thickness can be easily held on the frame 4 side.
  • the metal mask 2 is held and fixed on the frame 4 side by a number of claw portions (engagement portions) 10 arranged on the frame 4 side. Specifically, each claw portion 10 is inserted into each of a large number of engagement holes 12 formed at intervals along the peripheral edge portion 2 a of the metal mask 2, and each claw portion 10 is directly engaged with the metal mask 2. By joining, the metal mask 2 is fixed to the frame 4 side.
  • the engagement hole 12 has a round hole shape so that the metal mask 2 does not move after the claw portion 10 is engaged.
  • the frame 4 has a substantially rectangular frame structure, for example, and forms a hollow space 4c from the receiving body 4a and the covering body 4b as will be described later with reference to FIG.
  • the outer shape has dimensions of about 650 (mm) ⁇ 550 (mm).
  • a safety cover (cover) 16 is rotatably attached to the frame 4 via a hinge 14 disposed on the outer side of the claw portion 10.
  • FIG. 2 is a perspective side view of the screen printing plate 1 seen through from the side.
  • a first air tube (switching means) 22 and a second air tube (switching means) 24 are arranged in the hollow space 4c of the frame 4 over substantially the entire circumference of the frame structure.
  • a speed controller (switching means) 26 is provided in the hollow space 4c, and the speed controller 26 has a first air supply port 26a and a second air supply port 26b. An opening end of the first air tube 22 and an opening end of the second air tube 24 are connected to the first and second air supply ports 26a and 26b, respectively. The other end is closed.
  • the speed controller 26 has a time difference with respect to the first and second air tubes 22, 24 and can supply air in stages, and the air in the first and second air tubes 22, 24 can be supplied with a time difference. And can be discharged in stages.
  • FIG. 3 is a perspective top view showing the paths of the first and second air tubes 22 and 24 seen through from the top surface of the frame 4.
  • FIG. 4 is a perspective side view showing the frame 4 seen through from the side.
  • the hollow space 4c on each side of the frame 4 has a first moving base 28 provided so as to substantially surround the printing region 6 at the peripheral edge 2a of the metal mask 2, and an inner side than the first moving base 28.
  • a second moving base 30 provided so as to substantially surround the printing area 6.
  • the first moving pedestal 28 is provided with the above-described many claw portions 10 and the plurality of pins 20 on its upper surface, and a first spring (first elastic body) 32 is in contact with its side surface. ing.
  • the first spring 32 is arranged so that the first moving base 28 itself extends and contracts in the plate surface direction of the metal mask 2 (the direction parallel to the plate surface of the metal mask 2), which is the moving direction of the first moving base 28. Has been.
  • the first air tube 22 is disposed in the hollow space 4c so as to substantially surround the first moving pedestal 28 on the outside thereof, and the first spring 32 contracts against its elastic force by supplying air.
  • the first spring 32 contracts against its elastic force by supplying air.
  • the first spring 32 releases its elastic force and contracts in the extending direction.
  • the second moving pedestal 30 is provided with a contact portion 34 contacting the back surface of the metal mask 2 on its upper surface, and a second spring (second elastic body) 36 on its lower surface. It is touched.
  • the second spring 36 is arranged so that the second moving pedestal 30 itself extends and contracts in the plate thickness direction of the metal mask 2 that is the moving direction of the second moving pedestal 30 (direction perpendicular to the plate surface of the metal mask 2). Has been.
  • FIG. 5 is a cross-sectional view of the frame 4 showing a state before the screen printing plate 1 is set
  • FIG. 6 is a perspective view showing the inside of the frame 4 in a state shown in FIG. 5
  • FIG. 8 is a perspective view showing the interior of the frame 4 in FIG. 6 as seen through from the outer side.
  • FIG. 9 is a cross-sectional view of the frame 4 showing the state after the screen printing plate 1 is set
  • FIG. 10 is a perspective view showing the inside of the frame 4 in the state of FIG. 9
  • FIG. FIG. 12 is a perspective view showing the inside of the frame 4 in FIG. 9 as seen through from above
  • FIG. 12 is a perspective view showing the inside of the frame 4 in FIG. 9 as seen through from the outside.
  • a partition wall 38 is provided between the first moving base 28 and the second moving base 30, and the first spring 32 is provided between the partition wall 38 and the first moving base 28. It is arranged between one side.
  • the first air tube 22 is disposed between the other side surface of the first moving pedestal 28 and the inner surface of the receiving body 4a, and the first air tube 22 expands and contracts to cover the first body 4b and the first surface.
  • the first moving pedestal 28 is moved in the horizontal direction in the hollow space 4c between the guide wall 40 arranged to support the lower side of the moving pedestal 28.
  • the second spring 36 is disposed between the bottom surface of the receiving body 4 a and the lower surface of the second moving base 30.
  • the second air tube 24 is disposed between the upper surface of the second moving pedestal 30 and the inner upper surface of the covering body 4b. Due to the expansion and contraction of the second air tube 24, the second air tube 24 is interposed between the partition wall 38 and the receiving body 4a.
  • the 2nd movement base 30 is moved to the up-down direction through the hollow space 4c.
  • a claw part hole 42 into which the claw part 10 can be inserted is formed in the safety cover 16.
  • Each of the pin hole 18 and the claw hole 42 has a long hole shape.
  • the safety cover 16 covers the pin 20 and the claw part 10 while avoiding them.
  • the metal mask 2 can be sandwiched between the body 4b and when the first moving base 28 moves from the state of FIG. 5 to the state of FIG. 9, the pin 20 is moved along with the movement of the first moving base 28.
  • the claw part 10 is also formed in the position and magnitude
  • the claw portion 10 and the pin 20 can move along the movement of the first moving base 28.
  • a claw portion moving hole 44 and a pin moving hole 46 each having a long hole shape are formed.
  • the first and second air tubes 22 and 24 are connected to the speed controller 26.
  • air is supplied to the first and second air tubes 22 and 24. It is preferable to supply air to the first air tube 22 after supplying air to the second air tube 24 by operating the speed controller 26.
  • the first and second air tubes 22, 24 swell, so that the air pressure of the first air tube 22 relative to the first moving base 28 is in the direction of the plate surface of the metal mask 2. Acting on (shown by a one-dot chain line in FIG. 5), the first moving base 28 contracts the first spring 32 against its elastic force. Further, the air pressure of the second air tube 24 acts on the second moving pedestal 30 in the thickness direction of the metal mask 2 (indicated by a two-dot chain line in FIG. 5), and the second moving pedestal 30 is The spring 36 is contracted against the elastic force.
  • the claw portion 10 and the pin 20 are moved toward the inside of the printing plate 1 together with the first moving base 28, and the second moving base 30 is lowered so that the safety cover 16 can be opened.
  • the safety cover 16 is opened to the state shown in FIG.
  • the metal mask 2 is placed on the frame 4.
  • the respective engagement holes 12 of the metal mask 2 are inserted into the corresponding claw portions 10 to position the metal mask 2 on the first moving base 28 and thus on the frame 4.
  • the contact portion 34 of the second moving base 30 is in contact with the back surface 2 b of the metal mask 2.
  • the safety cover 16 is rotated in the direction A of FIG. 5 and closed to the state of FIG. Thus, the state before setting the screen printing plate 1 is completed.
  • air is discharged from the first and second air tubes 22 and 24. It is preferable to exhaust air from the second air tube 24 after exhausting air from the first air tube 22 by operating the speed controller 26.
  • the first air tube 22 is contracted, so that the first spring 32 is extended and its elastic force is released, and the first spring 32 with respect to the first moving base 28 is released.
  • the elastic force acts on the plate surface direction of the metal mask 2 (indicated by a one-dot chain line in FIG. 9).
  • the claw portion 10 pulls the metal mask 2 in the direction of the solid arrow B in FIG. 9 in all directions in the direction of the plate surface, and the tension state is maintained.
  • the pin 20 is composed of a head portion 20a and a neck portion 20b having a smaller diameter than the head portion 20a.
  • the head portion 20a protrudes above the safety cover 16, and the neck 20
  • the part 20 b comes into contact with the pin hole 18 of the safety cover 16. That is, with the movement of the first moving base 28, the pin 20 is automatically prevented from coming off from the pin hole 18, and the automatic cover mechanism turns the safety cover 16 upward after the screen printing plate 1 is set. Is regulated.
  • the first and second air tubes 22 and 24 are removed from the speed controller 26.
  • the state after the screen printing plate 1 is set is completed, and the tension is held in the metal mask 2, and the paste material is filled into the substrate in the printing region 6 from the filling hole 8, and the substrate can be printed.
  • the metal mask 2 is exchanged, the first and second air tubes 22 and 24 are connected to the speed controller 26 again, and the series of operations described above are performed.
  • the first moving pedestal 28 itself is moved in the plate surface direction of the metal mask 2 and the metal mask 2 is pulled by the claw portion 10, and this tensile state is the elastic force of the first spring 32.
  • the second moving base 30 itself is moved in the plate thickness direction of the metal mask 2 and the metal mask 2 is pressed by the contact portion 34, and this pressed state is the second spring 36. It is held by releasing the elastic force. Therefore, the elastic force of the first and second springs 32 and 36 is combined with the direct tensile force in the plate surface direction on the metal mask 2 and the direct pressing force in the plate thickness direction on the metal mask 2. Strong tension can be held semi-permanently for a long time.
  • first and second air tubes 22 and 24 substantially surround the first moving base 28 and the second moving base 30, the first and second springs 32 having high elastic force, Even if 36 is used, the first and second air tubes 22 and 24 can release the pressing force by the first spring 32 and the second spring 36 by the air pressure of the first and second air tubes 22 and 24. Since the springs 32 and 36 can be easily contracted, a strong tension combining a tensile force and a pressing force can be uniformly applied to the entire metal mask 2 with a simple configuration.
  • the metal mask 2 is fixed to the frame 4 side by directly engaging with the claw portion 10 of the first moving base 28, a conventional sheet (saddle) is not required.
  • the number of parts can be reduced and the manufacturing process can be simplified by providing both the function of the member that applies tension in the plate surface direction of the metal mask 2 to the movable pedestal 28 and the member that holds the metal mask 2 with the claw portion 10.
  • the metal mask 2 can be easily detached from the frame 4 by the engagement and release of the metal mask 2 by the claw portion 10 of the first moving base 28, and a plurality of metal masks can be attached to the common frame 4. Since 2 can be used by attaching and detaching, the storage space can be reduced as compared with the conventional case where the sheet, the metal mask 2 and the frame 4 are used in an integrated manner.
  • the speed controller 26 has a time difference with respect to the first and second air tubes 22 and 24 and performs air supply or air discharge step by step. Specifically, when air is discharged, air is discharged from the second air tube after discharging air from the first air tube, and when air is supplied, the first air is supplied after supplying air to the second air tube. Although it is preferable to supply air to a tube, it is not limited to this.
  • the air supply and air discharge to the first and second air tubes 22 and 24 may be performed simultaneously or in the reverse order described above.
  • friction of the contact portion 34 against the metal mask 2 can be avoided, damage to the metal mask 2 and the contact portion 34 can be suppressed, and tensile force, By applying a pressing force, the metal mask 2 can apply tension more uniformly, which is preferable.
  • the upward rotation of the safety cover 16 after the screen printing plate 1 is set is restricted by the above-described automatic locking mechanism, thereby reducing the work man-hours related to the setting of the screen printing plate 1, Productivity is also improved.
  • the present invention is not limited to this, and the rotation of the safety cover 16 may be restricted by a manual lock mechanism.
  • a hole 48 may be provided.
  • the contact portion of the contact portion 34 of the metal mask 2 is bent with an angle without bending when the second moving base 30 is raised and the contact portion 34 pushes up the metal mask 2. It is preferable. This is because when the metal mask 2 is bent and bent at the portion where the contact portion 34 abuts, the central portion (printing region 6) of the metal mask 2 bulges upward to form a convex dome shape in cross section. This is because an appropriate tension cannot be maintained in the central portion.
  • the bending strength of the portion where the contact portion 34 contacts the metal mask 2 is weakened. Since the metal mask 2 can be easily bent without being bent at the portion, a strong tension is always applied to the central portion of the metal mask 2 while preventing the convex dome shape in cross-sectional view of the central portion of the metal mask 2. Can be held.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)

Abstract

La présente invention concerne un cadre (4) dans une plaque de sérigraphie, pourvu : d'un premier socle mobile (28) qui entoure sensiblement une région d'impression (6) avec le bord circonférentiel (2a) d'un masque métallique (2), et qui présente une unité de mise en prise (10) qui se met directement en prise au niveau dudit bord circonférentiel ; d'un premier corps élastique (32) qui, tout en entrant en contact avec le premier socle mobile, déplace le premier socle mobile lui-même dans la direction de la surface de la plaque du masque métallique et qui, en libérant la force élastique, retient un état dans lequel l'unité de mise en prise tend le masque métallique ; d'un second socle mobile (30) qui entoure sensiblement la région d'impression susmentionnée davantage vers l'intérieur que le premier socle mobile et qui présente une partie de contact (34) qui entre en contact avec la surface arrière du masque métallique ; d'un second corps élastique (36) qui, tout en entrant en contact avec le second socle mobile, déplace le second socle mobile en lui-même dans la direction de l'épaisseur de la plaque du masque métallique, et qui, en libérant la force élastique, retient un état dans lequel la partie de contact s'appuie contre le masque métallique ; et de moyens de commutation (22, 24, 26) pour commuter entre la libération de la force élastique et la compression contre la force élastique des premier et second corps élastiques.
PCT/JP2011/074788 2011-10-27 2011-10-27 Plaque de sérigraphie WO2013061438A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2011/074788 WO2013061438A1 (fr) 2011-10-27 2011-10-27 Plaque de sérigraphie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2011/074788 WO2013061438A1 (fr) 2011-10-27 2011-10-27 Plaque de sérigraphie

Publications (1)

Publication Number Publication Date
WO2013061438A1 true WO2013061438A1 (fr) 2013-05-02

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PCT/JP2011/074788 WO2013061438A1 (fr) 2011-10-27 2011-10-27 Plaque de sérigraphie

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016059227A1 (fr) 2014-10-18 2016-04-21 Kászli Péter Cadres de pochoir

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09109364A (ja) * 1995-10-16 1997-04-28 Shinya Tomita スクリーン印刷用版枠
US5979313A (en) * 1997-03-25 1999-11-09 Bebro-Electronic Bengel & Bross Gmbh Stencil holder having independently movable tensioning elements
WO2007091630A1 (fr) * 2006-02-08 2007-08-16 Furetsu Kasuya outil d'ETIREMENT POUR matériau SOUS forme de feuille
WO2009047012A2 (fr) * 2007-10-08 2009-04-16 Dek International Gmbh Ensemble de bâti pour supporter des cadres d'impressions, mécanisme de support de bâtis pour supporter celui-ci et procédé de montage de cadres d'impression dans une machine de sérigraphie

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09109364A (ja) * 1995-10-16 1997-04-28 Shinya Tomita スクリーン印刷用版枠
US5979313A (en) * 1997-03-25 1999-11-09 Bebro-Electronic Bengel & Bross Gmbh Stencil holder having independently movable tensioning elements
WO2007091630A1 (fr) * 2006-02-08 2007-08-16 Furetsu Kasuya outil d'ETIREMENT POUR matériau SOUS forme de feuille
WO2009047012A2 (fr) * 2007-10-08 2009-04-16 Dek International Gmbh Ensemble de bâti pour supporter des cadres d'impressions, mécanisme de support de bâtis pour supporter celui-ci et procédé de montage de cadres d'impression dans une machine de sérigraphie

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016059227A1 (fr) 2014-10-18 2016-04-21 Kászli Péter Cadres de pochoir
US10660215B2 (en) 2014-10-18 2020-05-19 Alpha Assembly Solutions Inc. Stencil frames

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