JP6612511B2 - Metal mask tension jig and metal mask - Google Patents

Description

  The present invention relates to a screen used in screen printing and a screen extending jig.

  Printed circuit boards are often used in various electronic devices, but pattern printing is performed by attaching a metal mask, which is a thin stainless steel plate on which a printed pattern is formed, to a tension jig without applying tension, or by attaching a small metal mask to a polyester mesh. Alternatively, screen printing is performed in which nylon mesh or stainless steel mesh is attached to a stretching jig, the tension is applied to the metal mask by extending the stretching jig, and ink such as solder paste is transferred to the printed wiring board with a squeegee.

  When storing a metal mask or a screen mesh with a metal mask attached, it is most ideal to store it with the metal mask attached to a tensioning jig, but a screen tensioning jig with an expansion / contraction mechanism is not only expensive. Since it is heavy and bulky, it is inefficient to store or transport it with the metal mask attached to the tensioning jig.

For this reason, when not in use, the metal mask or screen mesh is stored in a state removed from the tensioning jig, and when used, the metal mask or screen mesh is attached to the tensioning jig.
However, since the metal mask, the screen mesh, and the tension jig are simple rectangles, they are attached in the wrong direction, which may cause trouble in printing.

FIG. 1 shows the relationship between the tensioning jig and the metal mask or screen mesh.
In the following description, only the case of using a metal mask will be described for the sake of simplicity.
In this figure, (a) is a tensioning jig 1, (b) is a metal mask 2 stretched on the tensioning jig shown in (a), and (c) is a state where the metal mask 2 is attached to a screen printing frame 3.

  The tension jig 1 shown in FIG. 1A is composed of four hollow jig frame members 4, 5, 6, and 7 and corner members 8, 9, 10, and 11 into which L-shaped legs are inserted. Since the tool frame member and each corner member are not fixedly coupled, each jig frame member is movable with respect to each corner member. As a result, the distance between the jig frame members 4 and 6 and the distance between the jig frame members 6 and 7 can be changed, and the tension of the attached metal mask is stretched.

  In addition, four jig frame members are fixedly connected, a metal mask is attached to the movable member accommodated in the jig frame member, and the metal mask attached by moving the movable member There is also a tensioning jig in which tension is tensioned or a tensioning jig in which tension is applied to a metal mask attached by rotating a movable member accommodated in a jig frame member by rotating the shaft.

A printed pattern 12, in this example, an English letter “F” is formed on the metal mask 2.
Hereinafter, in this specification, the print pattern 12 will be described using the letter “F”.

FIG. 2 illustrates the direction when the metal mask is attached to the stretching jig.
The metal mask itself does not have a structure that distinguishes the front and back. Therefore, there are the following four postures (a), (b), (c), and (d) for the attachment posture to the tensioning jig 1 due to overturning the front and back.
“F” of the print pattern 12a shown in FIG.
“F” of the printing pattern 12b shown in FIG. 5B is upright but turned upside down.
“F” of the print pattern 12c shown in FIG.
“F” in the print pattern 12d shown in FIG.
As understood from these, the correct tensioning posture is only (a) of the four possible postures.

  As a configuration for attaching the metal mask to the tension jig, a configuration for directly attaching the engagement hole formed in the metal mask to the engagement pin provided in the tension jig, and attaching the metal mask to the tension frame, There is a configuration in which a tension frame is attached to a tension jig, and the inventors have shown these mounting configurations in WO 2007/091630.

FIG. 3 shows a configuration in which the metal mask is directly attached to the stretching jig.
Extension member 15, 16, 17, 18 to the inner portion of each of the jig frame members 4, 5, 6, 7 Zhang設治device 13 shown in (a) are provided, the engagement pin 19 on each of the extension members It is provided at uniform intervals.
There is a configuration in which the extending member is omitted by providing the engaging pin 19 on the frame members 4, 5, 6, 7 instead of the extending members 15, 16, 17, 18.

  In the metal mask 14 shown in (b), an English letter “F” as the printing pattern 12 is formed on a rectangular stainless steel plate having a thickness of about 0.15 mm by etching or laser processing.

Engagement holes 20 corresponding to the engaging pin 19 is formed with a uniform spacing on the periphery of the metal mask 14.

When printing is fitted with a metal mask 14 in tension設治tool 13 by engaging the engagement holes 20 of the metal mask 14 with the engaging pin 19 of the tension設治tool 13, Zhang設治member 13 facing the frame member 4, By changing the distance between 6 and 5 and 7, the tension applied to the metal mask 14 is adjusted to be suitable for printing by changing the distance between the opposing engagement pins.

FIG. 4 shows a metal mask using a holding frame and a tensioning jig.
In this figure, (a) shows a tensioning jig, (b) shows a metal mask stretched on the tensioning jig shown in (a), and (c) shows a holding frame. How to use.

  The tension jig 81 shown in (a) includes four hollow frame members 4, 5, 6, and 7 and corner members 8, 9, 10, and the frame members that connect the frame members by inserting legs into the open ends of the frame members. 11, the distance between the corner members 8 and 9, 11 and 10, and the distance between the corner members 8 and 11, 9 and 10 can be changed.

Extension members 15, 16, 17, and 18 are provided at positions slightly away from the surface of the frame members on the inner sides of the frame members 4, 5, 6, and 7 of the rectangular extending jig 41. The engaging pin 19 is provided so that the head of the engaging pin does not protrude from the surface formed by the frame member.

  Further, positioning guide holes 24, 25, 26, 27 are formed in the extending members 15, 16, 17, 18. These positioning guide holes 24, 25, 26 and 27 are formed at the centers of the respective extension members 15, 16, 17 and 18.

  In the metal mask 22 shown in (b), a locking hole 20 is formed in the peripheral portion, and in addition, positioning guide holes 28, 28, 30, and 31 are formed in the center of each peripheral portion.

  The pressing frame tool 23 shown in (c) is provided with four positioning pins. These positioning pins are provided at the center of the frame pieces of the holding frames.

  FIG. 5 shows a metal sheet and a tensioning device in which a notch is formed in a corner of a metal sheet, and a protrusion corresponding to the notch is formed in a corner member of a tensioning jig.

  Some corner portions of the metal mask have notches formed at the four corners of the metal mask as necessary in order to relieve stress generated in the corner portion when tension is applied by a tension jig.

When the metal mask with the cutouts is attached to the tensioning jig, there are openings at the four corners of the tensioning jig, and there is a risk of injury to the operator due to the opening.
In order to eliminate this danger, a protruding piece may be provided on each corner member.

Cutout portions 51, 52, 53, and 54 having a quadrant shape are formed at the four corners of the metal mask 42 shown in FIG.
Further, projecting pieces 47, 48, 49, 50 are provided on the corner members 43, 44, 45, 46 at the four corners of the tension jig 41 shown in FIG.

FIG. 6 shows a configuration in which the metal mask is attached to the tension frame and the tension frame is attached to the tension jig.
The tension jig 101 shown in FIG. 4A is a corner member in which L-shaped legs are inserted into the open ends of the four hollow jig frame members 109, 110, 111, 112 and the hollow jig frame member. 105, 106, 107, 108.
The tension jig 101 has the same shape and mechanism as the tension jig 1 shown in FIG. 1 except that the shape of the jig frame members 109, 110, 111, and 112 on which the tension frames are not attached is different. ing.

The extending frame 102 shown in FIG. 2B is composed of linear extending frame members 113, 114, 115, 116 made of aluminum material having a thickness of several millimeters, and jig frame members 109, 110 of the extending jig. , 111, 112 are formed with engaging grooves 118, 119, 120, 121.
In the tension frame 102, tension frame members 113, 114, 115, and 116 are formed integrally by welding or the like, and openings are formed at both ends of the tension frame members 113, 114, 115, and 116. Is formed, the end of an L-shaped corner member is inserted into the opening, and the tension frame can be deformed.
In the following description, only the case where the tension frame member is integrally formed will be described in order to simplify the description.

  The tension frame 102 has a metal mask 103 formed by etching or laser processing an English letter “F” as a printing pattern 104 on a rectangular stainless steel plate having a thickness of about 0.15 mm. It is fixed to the surface where the joint groove is not formed by means such as adhesion.

(C) and (d) show a configuration in which a tension frame is attached to a tension jig.
(C) is sectional drawing which shows the state in which the tension frame is not attached to the tension jig, (d) is sectional drawing which shows the state attached.
As shown in (c), engagement ridges 121 and 123 having a cross-sectional dovetail shape are provided on the surface of the extension jig 201 facing the extension frame members 113 and 115 of the jig frame members 109 and 111.
On the surfaces of the tension frame members 113 and 115 facing the jig frame members 109 and 111, engagement grooves 118 and 120 having a dovetail cross section are formed.
The jig frame members 110 and 112 (not shown) have the same structure as the jig frame members 109 and 111 shown.

  The jig frame members 109, 110, 111, and 112 are replaced with dovetail-shaped engaging ridges, and the extending frame members 113, 114, 115, and 116 are provided with dovetail-shaped engaging ridges. The jig frame members 109, 110, 111, and 112 may be provided with engaging dovetails having a cross-sectional dovetail shape, and the extending frame members 113, 114, 115, and 116 may be provided with engaging ridges having a cross-sectional dovetail shape.

  As shown in (d), the engaging ridge 121 of the jig frame member 109 is engaged with the engaging groove 118 of the extending frame member 113, and the engaging protruding line of the jig frame member 111 is engaged with the extending frame. By engaging with the engaging groove 120 of the member 115 and changing the distance between the jig frame members 109 and 111 as indicated by the arrows, the tension of the metal mask 103 changes.

With reference to FIG. 7, the mounting structure and mounting relationship between the stretching frame and the stretching jig will be described.
The tension jig 101 shown in FIG. 10A is a surface on the side where the tension frame 102 is attached, and the tension jig 102 shown in FIGS.

Corner members 105, 106, 107, 108 in which L-shaped legs are inserted into the open ends of the four hollow jig frame members 109, 110, 111, 112 of the extension jig 101 and the respective jig frame members. It is composed of
On the surface of the jig frame members 109, 110, 111, 112 on the side where the stretched frame is attached, ridges 121, 122, 123, 124 having a cross-sectional dovetail shape are formed.
The tension jig 101 has the same shape and the same mechanism as the tension jig 1 shown in FIG. 1 except that the shape of the tension frame attachment surfaces of the jig frame members 109, 110, 111, and 112 is different.

  The tension frame 102 shown in FIG. 5B is formed by integrally forming linear tension frame members 113, 114, 115, and 116 made of an aluminum material having a thickness of several millimeters by means of welding or the like. Engaging grooves 117, 118, 119, 120 having a cross-sectional dovetail shape are formed on the opposing surfaces, and the letter “F”, which is the print pattern 104, is formed on the surface of the extending frame 102 where the engaging grooves are not formed. A metal mask 103 formed with is attached.

  In the tension frame 102, tension frame members 113, 114, 115, and 116 are formed integrally by welding or the like, and openings are formed at both ends of the tension frame members 113, 114, 115, and 116. In some cases, the end of the L-shaped corner member is inserted into the opening, and the tension frame can be deformed.

  It is also possible to form engagement grooves in the jig frame 101 and form engagement ridges in the tension frame 102.

  Since the engaging frame 117, 118, 119, 120 is formed on one surface of the tension frame 102 and a metal mask is attached to the other surface, the tension frame 102 is shown in FIG. 2 (b) or FIG. 2 (d). The reverse mounting as shown in the figure is not possible, and only the upright printing pattern “F” 104 shown in FIG. 5B or the inverted printing pattern “F” 104 shown in FIG. is there.

  FIG. 8 and FIG. 9 show that the tension frame formed by attaching the metal mask to the corner protrusion of the jig frame and the engagement hole formed at the corner of the tension frame member. It is the structure which attaches a metal mask to a jig | tool frame by engaging.

In the tension jig 201 shown in FIG. 8A, L-shaped legs are inserted into the open ends of the four hollow jig frame members 209, 210, 211, 212 and the hollow jig frame members. The corner members 205, 206, 207, and 208 are configured.
The tension jig 201 has the same shape and mechanism as the tension jig 1 shown in FIG. 1 except that the shape of the corner members 205, 206, 207, 208 to which the tension frames are attached is different. .

The tension frame 202 shown in (b) is composed of linear tension frame members 213, 214, 215, and 216 made of an aluminum material having a thickness of several millimeters, and corner members 205, 206, 207, Locking holes 217, 218, 219, and 220 are formed on the surface facing 208.
In the tension frame 202, tension frame members 213, 214, 215, and 216 are integrally formed by welding or the like, and openings are formed at both ends of the tension frame members 213, 214, 215, and 216. Is formed, the end of an L-shaped corner member is inserted into the opening, and the tension frame can be deformed.
In the following description, only the case where the tension frame member is integrally formed will be described in order to simplify the description.

  The tension frame 202 has a metal mask 203 formed by etching or laser processing an English letter “F” as a printing pattern 204 on a rectangular stainless steel plate having a thickness of about 0.15 mm. It is fixed to the surface where the joint groove is not formed by means such as adhesion.

(C) and (d) show a configuration in which a tension frame is attached to a tension jig.
(C) is sectional drawing which shows the state in which the tension frame is not attached to the tension jig, (d) is sectional drawing which shows the state attached.
As shown in (c), engaging projections 221 and 222 are provided on the surface of the tension member 202 facing the corner portion of the tension frame of the corner members 206 and 207.
A locking hole 218 is formed in a surface of the joining frame members 213 and 214 facing the corner member 206 of the jig frame 201 at the joining portion, and the corner of the jig frame 201 is formed at the joining portion of the stretching frame members 214 and 215. A locking hole 219 is formed on the surface facing the member 207.
The other corner members 208 and 205 of the jig frame member 201 have the same structure as the illustrated corner members 206 and 207.

  Instead of providing the protrusion on the jig frame and the engaging hole on the extending frame, the engaging hole can be provided on the jig frame and the extending frame engaging protrusion can be provided.

  As shown in (d), the engagement protrusion 121 of the corner member 206 of the jig frame is engaged with the engagement hole 218 of the extension frame member, and the engagement protrusion 222 of the corner member 207 is engaged with the extension frame member. By engaging with the stop hole 219 and changing the distance between the corner members 206 and 207 as indicated by the arrows, the tension of the metal mask 103 changes.

With reference to FIG. 9, the mounting structure and mounting relationship between the stretching frame and the stretching jig will be described.
The tension jig 201 shown in FIG. 6A is a surface on the side where the tension frame 202 is attached, and the tension jig 202 shown in FIGS.

The tension jig 201 shown in FIG. 5A is a corner member in which four hollow jig frame members 209, 210, 211, 212 and L-shaped legs are inserted into the open ends of these jig frame members. 205, 206, 207, 208.
Engagement protrusions 221, 222, 223, and 224 are formed on the surfaces of the corner members 205, 206, 207, and 208 on the side where the tension frame is attached.
The tensioning jig 201 has the same shape and the same mechanism as the tensioning jig 1 shown in FIG. 1 except that the shape of the tensioning frame attaching surfaces of the corner members 205, 206, 207, 208 is different.

  The extending frame 202 shown in FIG. 5B is formed by integrally forming linear extending frame members 213, 214, 215, and 216 made of an aluminum material having a thickness of several millimeters by means of welding or the like. Locking holes 217, 218, 219, and 220 are formed on the surface facing the corner member, and the letter “F” that is the printing pattern 204 is formed on the surface of the extending frame 202 where the locking holes are not formed. A metal mask 203 is attached.

  In the tension frame 202, tension frame members 213, 214, 215, and 216 are integrally formed by welding or the like, and openings are formed at both ends of the tension frame members 213, 214, 215, and 216. In some cases, the end of the L-shaped corner member is inserted into the opening, and the tension frame can be deformed.

  It is also possible to form a locking hole in the jig frame 201 and form an engagement protrusion on the tension frame 202.

  The tension frame 202 has locking holes 217, 218, 219, and 220 formed on one surface and a metal mask attached to the other surface, so that it is shown in FIG. 2 (b) or FIG. 2 (d). Such an upside down attachment is not possible, and there is only an upright print pattern “F” 204 shown in FIG. 7B or an upside down print pattern “F” 204 shown in FIG. 7C. .

WO2007 / 091630

Since the metal mask or screen mesh used in screen printing is rectangular, there is no distinction between top and bottom, left and right or front and back, and the mounting direction of the metal mask or screen mesh may be incorrect. When printing is performed, the printed product becomes a defective product.
The one that uses the tension frame will not be mistaken in the front and back, but it is possible to mistake the top and bottom.

  In order to prevent such an error, the operator has confirmed the mounting direction by visual observation in the past. However, there is a limit to the operator's attention, and the metal mask used for printing several times becomes dirty. It is not possible to completely prevent errors due to the fact that it is difficult to see because of the adhesion.

  The invention of this application provides a tension jig frame and a metal mask that can prevent the occurrence of defective products in screen printing by giving the metal mask or screen mesh used in screen printing a distinction between top, bottom, left, and right or front and back. It is an object to provide a screen mesh.

In order to solve this problem, in this application, a non-uniform structure in which the mounting direction is regulated is formed in the mounting structure of the stretching jig and the metal mask or the screen mesh.
In the following description, only the case of using a metal mask will be described for the sake of simplicity.

  A screen consisting of a metal mask and a metal mask tensioning jig that not only has a distinction between top and bottom, left and right, or front and back, but also that it is impossible to attach a metal mask to a metal mask tensioning jig if the top, bottom, left or right or front and back are wrong. A printing device is provided.

  An outline of the invention according to the present application is shown below.

  In the invention according to the present application, the tension jig frame of the screen printing apparatus for attaching the rectangular metal mask to the rectangular tension jig frame and the engaging portion of the metal mask are configured uniformly, and a part of the mounting structure is not provided. The mounting direction restricting portion is configured by making it uniform.

  Furthermore, if necessary, a mark for distinguishing the non-uniformly configured portion from other uniformly configured portions is attached.

The configuration of the mounting direction restricting portion in the metal mask and the extending jig frame shown in FIGS. 3 to 5 for engaging the engaging hole of the metal mask with the engaging pin provided in the extending jig frame is as follows. .
A plurality of engagement holes formed on the peripheral edge of the metal mask and one engagement hole close to one corner of the engagement pin of the extending jig frame and the diameter of one engagement pin are the other engagement holes and Different from the diameter of the engaging pin.

  The shape of one engagement hole and one engagement pin close to one corner of a plurality of engagement holes formed on the peripheral edge of the metal mask and the engagement pin of the extending jig frame are the other engagement holes and Different from the shape of the engagement pin.

  A plurality of engagement holes formed on the periphery of the metal mask and one engagement hole close to one corner of the engagement pin of the extending jig frame and the arrangement interval of one engagement pin are other engagement holes. And the arrangement interval of the engaging pins is different.

  The arrangement density of the engagement holes and the engagement pins close to one corner of the engagement pins formed on the peripheral edge of the metal mask and the engagement pins of the extending jig frame is the arrangement of the other engagement holes and the engagement pins. Different from density.

  The arrangement density of the engagement holes and the engagement pins close to one corner of the engagement pins formed on the peripheral edge of the metal mask and the engagement pins of the extending jig frame is the arrangement of the other engagement holes and the engagement pins. Different from density.

  The arrangement shape of the engagement holes and the engagement pins close to one corner of the engagement pins formed on the peripheral edge of the metal mask and the engagement pins of the extending jig frame is an arrangement of the other engagement holes and the engagement pins. Different from shape.

  The arrangement shape of the engagement holes and the engagement pins close to one corner of the engagement pins formed on the peripheral edge of the metal mask and the engagement pins of the extending jig frame is an arrangement of the other engagement holes and the engagement pins. Different from shape.

  The arrangement shape of the engagement pins on the two sides adjacent to one corner of the engagement pins formed on the peripheral edge of the metal mask and the engagement pin of the tension jig frame is the arrangement shape of the engagement pins on the other two sides And different.

  Using a holding frame composed of four frame members that press the plurality of engaging holes formed in the peripheral edge of the metal mask against the engaging pins of the extending jig frame, positioning pins on one side of the holding frame, and one side of the metal mask The positioning pin insertion hole and the positioning jig insertion hole on one side of the tensioning jig frame are not arranged in the center, the positioning pins on the three sides of the holding frame, the positioning pin insertion holes on the three sides of the metal mask, and the three sides of the tensioning jig frame The positioning pin insertion hole is arranged at the center.

  Using a holding frame composed of four frame members that press the plurality of engaging holes formed in the peripheral edge of the metal mask against the engaging pins of the extending jig frame, positioning pins on one side of the holding frame, and one side of the metal mask Positioning pin insertion hole and positioning pin insertion hole diameter on one side of the tensioning jig frame and positioning pins on the other three sides of the holding frame, positioning pin insertion holes on the other three sides of the metal mask and the other three of the tensioning jig frame The diameter of the side positioning pin insertion hole is different.

  Using a pressing tool composed of four frame members that press the plurality of engaging holes formed in the peripheral edge of the metal mask against the engaging pins of the tension jig frame, positioning pins on one side of the pressing tool, and one side of the metal mask Positioning pin insertion hole and positioning pin insertion hole shape on one side of the tensioning jig frame, positioning pin on the other three sides of the holding frame, positioning pin insertion hole on the other three sides of the metal mask and other three of the tensioning jig frame The shape of the side positioning pin insertion hole is different.

  When attaching the metal mask to the tensioning jig frame, if the top and bottom of the metal mask are not questioned, the direction restriction configuration provided on the metal mask and the tensioning jig frame is point-symmetrical with respect to the center of the metal mask and the tensioning jig frame. Also formed.

  In the case where the metal mask and the extending jig frame are square and the mounting direction may be rotated by 90 °, the mounting direction restricting structure is formed at a position rotated by 90 ° in addition to the point-symmetrical position.

As shown in FIGS. 6 to 9 for attaching the tension frame with the metal mask stretched to the tension jig frame, there are the following configurations of the tension frame and the mounting direction restricting portion in the tension jig frame.
A corner member of a tension jig frame having a plurality of engagement holes and a plurality of engagement holes formed at the periphery and a notch at a corner and a plurality of engagement pins has a protrusion, and one notch and one The shape of the protruding portion is different from the shapes of the other three cutout portions and the three protruding portions.

  A corner member of a tension jig frame having a plurality of engagement holes and a plurality of engagement holes formed at the periphery and a notch at a corner and a plurality of engagement pins has a protrusion, and one notch and one The size of the protruding portion is different from the size of the other three cutout portions and the three protruding portions.

  Engagement grooves or engagement ridges are formed on the tension frame on which the metal mask is stretched, and engagement ridges or engagement grooves are formed on the tension jig frame. The mating grooves are different from the other three sets of engaging ridges or engaging grooves.

  Engagement grooves or engagement ridges are formed on the tension frame that is stretched by the metal mask, and engagement ridges or engagement grooves are formed on the tension jig frame, and one set of engagement is formed at one corner. A mating protrusion or engagement hole is formed.

Since the metal mask according to the invention according to this application cannot be attached to the tension jig in the wrong direction, it can be attached in the correct direction even if the operator does not pay special attention visually.
Furthermore, when the metal mask is automatically replaced, it can be easily attached in the correct direction.

Explanatory drawing of the tension jig and metal mask which have an expansion / contraction function. Explanatory drawing of the attitude | position which attaches a metal mask to a tension jig. Explanatory drawing of the conventional tension jig and metal mask which engage the engagement hole of a metal mask with the engagement pin of a tension jig. Explanatory drawing of the conventional tension | tensile_strength jig | tool and metal mask which engage the engagement hole of a metal mask with the engagement pin of a tension | tensile_strength jig | tool using a holding frame. Explanatory drawing of the conventional tension | tensile_strength jig | tool which has a protruding part in a tension | tensile_strength jig | tool, and has a notch part in a metal mask, and engages the engagement hole of a metal mask with the engagement pin of a tension | tensile_strength jig | tool. Explanatory drawing of the conventional metal mask and tensioning jig which formed the ditch | groove in the tension frame with the engagement protrusion on the tensioning jig. Explanatory drawing of the attachment structure and attachment attitude | position of the conventional metal mask which formed the engagement protrusion on the tensioning jig, and the ditch | groove in the tensioning frame, and the tensioning jig. Explanatory drawing of the conventional metal mask which formed the engagement protrusion in the tensioning jig, and the engagement hole in the tensioning frame, and the tensioning jig. Explanatory drawing of the attachment structure and attachment attitude | position of the conventional metal mask which formed the engagement protrusion in the tension jig, and the engagement hole in the tension frame, and the tension jig. Explanatory drawing of the tension jig and metal mask of this invention Example 1 which has the engagement pin of a tension jig, and the engagement hole of a metal mask. Explanatory drawing of the function of this invention Example 1. FIG. Explanatory drawing of this invention Example 2 when the top and bottom of an attachment direction does not become a problem. Explanatory drawing of the function of this invention Example 2. FIG. Explanatory drawing of the tension jig and metal mask of Example 3 of this invention which has the engagement pin of a tension jig and the engagement hole of a metal mask. Explanatory drawing of the tension jig and metal mask of this Example 4 which has the engagement hole of the tension jig and the engagement hole of a metal mask. Explanatory drawing of the tension | tensile_strength jig | tool and metal mask of this Example 5 which has the engagement pin of a tension | tensile_strength jig | tool, and the engagement hole of a metal mask. Explanatory drawing of the tension jig and metal mask of Example 6 of this invention which has the engagement pin of a tension jig and the engagement hole of a metal mask. Explanatory drawing of the tension jig and metal mask of this Example 7 which has the engagement hole of the tension jig and the engagement hole of a metal mask. Explanatory drawing of the function of this invention Example 6. FIG. Explanatory drawing of the tension jig and metal mask of Example 8 of this invention by parts other than the engagement pin of a tension jig and the engagement hole of a metal mask. Explanatory drawing of the tension jig and metal mask of Example 8 of this invention which has the engagement hole of the tension jig and the engagement hole of a metal mask. Explanatory drawing of the tension jig | tool and metal mask of this Example 9 which has the engagement pin of a tension jig and the engagement hole of a metal mask. Explanatory drawing of the function of this invention Example 9. FIG. Explanatory drawing of the extending | stretching jig | tool of this invention Example 10 which has the engagement pin of the tension jig | tool which is a square, and the engagement hole of a metal mask which is a square. Explanatory drawing of the function of this invention Example 10 (the 1). Explanatory drawing of the function of this invention Example 10 (the 2). Explanatory drawing of the attachment structure and attachment attitude | position of the metal mask of this invention Example 11 which has an engagement protrusion on a tension | tensile_strength jig, and a ditch | groove in a tension | tensile_strength frame. Explanatory drawing of the metal mask and tensioning jig | tool of this invention Example 12 which has an engagement protrusion on a tensioning jig, and a ditch | groove in a tensioning frame. Explanatory drawing of the metal mask and tensioning jig | tool of this invention Example 13 which has an engagement protrusion on a tension | tensile_strength jig | tool, and a ditch | groove in a tension | tensile_strength frame. Explanatory drawing of the metal mask and tensioning jig | tool of this invention Example 14 which has an engagement protrusion on a tensioning jig, and a ditch | groove in a tensioning frame. Explanatory drawing of the metal mask and tensioning jig | tool of this invention Example 15 which has an engagement protrusion on a tensioning jig, and a ditch | groove in a tensioning frame. Explanatory drawing of the attachment structure and attachment attitude | position of the metal mask of this invention Example 16 which has an engagement hole in a tension | tensile_strength jig, and an engagement hole in a tension | tensile_strength frame. Explanatory drawing of the metal mask of this invention Example 17 which has an engagement protrusion in a tension | tensile_strength jig | tool, and an engagement hole in a tension | tensile_strength frame, and a tension | tensile_strength jig | tool. Explanatory drawing of the metal mask of this invention Example 18 which has an engagement protrusion in a tension | tensile_strength jig | tool, and an engagement hole in a tension | tensile_strength frame, and a tension | tensile_strength jig | tool. Explanatory drawing of the metal mask of this invention Example 19 which has an engagement protrusion in a tension | tensile_strength jig | tool, and an engagement hole in a tension | tensile_strength frame, and a tension | tensile_strength jig | tool.

Examples of the invention according to this application will be described below.
In the embodiment, first, the metal mask is directly stretched to the tensioning jig by the engagement pin and the engagement hole, and then the metal mask is indirectly tensioned to the tensioning jig by using the tensioning frame. To do.

Examples 1 to 7 use the engagement pin and the engagement hole as the attachment direction restricting portion.
The tension jig and metal mask of Example 1 will be described with reference to FIGS.
FIG. 10 shows the structure of the tension jig and the metal mask of the first embodiment. FIG. 11 explains how the function of the first embodiment, that is, how to attach the metal mask to the tension jig is determined.

10A shows a tension jig and FIG. 10B shows a metal mask.
The tension jig 1 shown in FIG. 1A is composed of four hollow jig frame members 4, 5, 6, and 7 and corner members 8, 9, 10, and 11 into which L-shaped legs are inserted. Since the tool frame member and each corner member are not fixedly coupled, each jig frame member is movable with respect to each corner member. As a result, the distance between the jig frame members 4 and 6 and the distance between the jig frame members 6 and 7 can be changed, and the tension of the attached metal mask is stretched.

The tension jig 51 has four hollow frame members 4, 5, 6, 7 and the frame members 4, 5, 6, 7 inserted into the open ends of the frame members 4, 5, 6, 7. The corner members 8, 9, 10, and 11 are coupled to each other, and the distances between the corner members 8 and 9, 9 and 10, the corner members 10 and 11, and the corner members 11 and 8, and 9 can be changed.
Since each frame member is not fixedly coupled to each corner member, each frame member is movable with respect to each corner member.

When the distance between the corner members 8 and 9 and the corner members 10 and 11 is changed, the distance between the frame member 5 and the frame member 7 changes accordingly.
When the distance between the corner members 8 and 11 and the corner members 9 and 10 is changed, the distance between the frame member 4 and the frame member 6 changes accordingly.

  In addition to this, there is also a tensioning jig that changes the interval between the engaging portions provided in the frame member by moving the frame member in a direction perpendicular to the longitudinal direction instead of changing the distance between the corner members.

  There is also a tensioning jig that changes the substantial interval between the engaging portions by rotating the frame member provided with the engaging portions around the longitudinal axis.

  Extension members 15, 16, 17, and 18 are provided on the inner sides of the frame members 4, 5, 6, and 7 of the extending jig 51 that forms a rectangle, and a plurality of engagement pins 19 are uniformly formed on each extension member. It is provided at intervals.

  There is also a tensioning jig in which the engaging pins are provided not on the extension members 15, 16, 17, 18 but on the frame members 4, 5, 6, 7.

  In addition, since the tension jig to be used is common in all the examples, description is abbreviate | omitted in another Example.

  The diameter of the engagement pin 19 has the same shape except for one engagement pin 54 disposed near one corner member 9 of the extension member 15 formed on the jig frame member 4 of the extension jig 51. The diameter of the joint pin 54 is larger than that of the engagement pins 53, 55, 56 provided at the other three corners, and functions as an attachment direction restricting portion.

  The diameter of the engagement pin 54 can be a small diameter instead of a large diameter.

  It is also possible to use a plurality of engagement pins having different diameters.

  Furthermore, as long as the positions of the engagement pins 54 having different diameters are non-uniform positions, positions other than the corners are possible.

(B) shows a metal mask 52 used by being attached to the tension jig shown in (a).
In the metal mask 52, an English letter “F” is formed as a printing pattern 12 on a rectangular stainless thin plate having a thickness of about 0.15 mm by etching or laser processing.

  Engagement holes 20 corresponding to the engagement pins 19 are formed at uniform intervals on the peripheral edge of the metal mask 52.

The diameter of the engagement hole 58 provided at one corner of the metal mask 52 is larger than the diameter of the engagement holes 57, 59, 60 provided at the other three corners.
The diameter of the engagement hole 58 can be a small diameter instead of a large diameter.
It is also possible to use a plurality of engagement holes with different diameters.
Furthermore, as long as the positions of the engagement holes 58 having different diameters are non-uniform, positions other than the corners are possible.

The directions of the metal mask shown in FIGS. 11A, 11B, 11C, and 11D are the same as those of the metal mask described in FIG.
(A) shows an upright back surface, and the print pattern 12 is attached in the correct direction.
(B) shows an upright front side surface, and the print pattern 12 is installed upside down although it is upright.
(C) shows an inverted back surface, and the printed pattern 12 is mounted upside down although it is on the back side.
(D) shows an inverted front side surface, and the print pattern 12 is attached with the front side upside down.

In these drawings, the white circles indicate engagement holes formed in the metal mask, and the black circles outside the metal mask indicate engagement pins provided on the tensioning jig.
Further, 54 is an engagement pin having a diameter larger than that of the other engagement pins, and 58 is an engagement hole having a diameter larger than that of the other engagement holes.

  In the mounting direction shown in (a), a large-diameter engagement hole 58 corresponds to the large-diameter engagement pin 54, and a jig for stretching a metal mask can be attached.

  In the mounting direction shown in (b), the engagement hole 55 corresponds to the engagement pin 54 with a large diameter, and the engagement pin 54 with a large diameter cannot be fitted into the engagement hole 55. Cannot be attached to the tensioning jig.

  In the mounting direction shown in (c), the engagement hole 60 corresponds to the engagement pin 54 having a large diameter, and the engagement pin 54 having a large diameter cannot be fitted into the engagement hole 58. Cannot be attached to the tensioning jig.

  In the mounting direction shown in (d), the engagement hole 59 corresponds to the engagement pin 54 with a large diameter, and the engagement pin 54 with a large diameter cannot be fitted into the engagement hole 59. Cannot be attached to the tensioning jig.

  In the description of the first embodiment, it has been described that the diameters of the engagement pins 54 and the engagement holes 58 are larger than those of the other engagement pins and engagement holes.

  The phenomenon described here does not require visual confirmation of the mounting direction of the metal mask, so even if there are obstacles such as the limit of the operator's attention and the use of a metal mask with dirt attached, Can be securely attached in the correct direction.

  A plurality of the engagement pins 54 and the engagement holes 58 can be provided, and the engagement pins 54 and the engagement holes 58 can be arranged at any position other than the corner as long as the mounting positions are asymmetrical.

  Also, by attaching marks such as coloring near the engaging pins 54 and the engaging holes 58 that have different diameters from the other engaging pins 19 and the engaging holes 20, it is easy to attach the metal mask to the tensioning jig. become.

Example 2 is shown in FIG. In this figure, (a) is a tension jig, and (b) is a metal mask stretched as shown in (a).
In addition, about Example 2, since description of the part which is common in Example 1 will become complicated, it abbreviate | omits, and only a different item from Example 1 is demonstrated.
The functions of the engagement pin and the engagement hole are the same as those of the engagement pin and the engagement hole described in FIG.

Extension members 15, 16, 17, and 18 are provided on the inner sides of the frame members 4, 5, 6, and 7 of the extending jig 61 that forms a rectangle, and a plurality of engagement pins 19 are uniform on each extension member. It is provided at intervals.
In addition, a plurality of engagement holes 20 are provided at uniform intervals around the periphery of the rectangular metal mask 62.

  The shape of the engagement pin 19 is the same except for one engagement pin 64 disposed near one corner member 9 of the extension member 15 formed on the jig frame member 4 of the extension jig 61.

  The diameter of the engagement pin 19 is the same cylindrical shape except for one engagement pin 64 disposed near one corner member 9 of the extension member 15 formed on the jig frame member 4 of the extension jig 61. The engagement pin 64 has a quadrangular prism shape.

  The shape of the engagement pin 19 and the engagement hole 20 can be any shape other than a cylinder and a circular hole, and the shape of the engagement hole 64 and the engagement hole 68 can be the engagement pin 19 other than the prism and the square hole. Any shape different from the shape of the engagement hole 20 can be used.

  Further, the engagement hole 64 and the engagement hole 68 may be plural, and can be arranged at any position other than the corner as long as the arrangement position is asymmetrical.

  In addition, by attaching a colored mark near the engagement pin 63 and the engagement hole 64 having a shape different from that of the other engagement pins 19 and the engagement holes 20, it is easy to attach the metal mask to the tensioning jig. become.

FIG. 13 shows a tension jig and a metal mask of Example 3. In this figure, (a) is a tensioning jig, and (b) is a metal mask stretched on the tensioning jig shown in (a).
In addition, also about Example 4, description of the part which is common in Example 1 becomes complicated, and is abbreviate | omitted, and only a different item from Example 1 is demonstrated.
The functions of the engagement pin and the engagement hole are the same as those of the engagement pin and the engagement hole described in FIG.

  In the third embodiment, the position of the engagement pin 68 formed on the extension member 15 near the specific corner member, in this example, near the corner member 9 is out of the arrangement relationship of the other engagement pins. In the case of the embodiment, it is arranged at a position having a larger interval than the interval between the adjacent engagement pins 19, and the position of the engagement hole 69 of the metal mask 67 deviates from the arrangement positional relationship of the other engagement holes. The position is arranged at a position having a larger interval than the interval between the adjacent engagement holes 20 in this embodiment.

  Further, as shown in FIG. 13, the positions of the engaging pins 68 and the positions of the engaging holes 69 are the positions deviating from the arrangement direction of other adjacent engaging pins and the arrangement of other adjacent engaging holes, in other words, the frame. Positions 78 and 79 close to or far from the member 4 are also possible.

  Further, by attaching marks such as coloring near the engaging pins 68 and the engaging holes 69, which are different from the positions of the other engaging pins 19 and the engaging holes 20, the metal mask can be attached to the tensioning jig. It becomes easy.

FIG. 14 shows a tension jig and a metal mask of Example 4.
(A) is a tension jig, (b) is a metal mask stretched on the tension jig shown in (a).
In addition, also about Example 4, description of the part which is common in Example 1 becomes complicated, and is abbreviate | omitted, and only a different item from Example 1 is demonstrated.
The functions of the engagement pin and the engagement hole are the same as the functions of the engagement pin 5 and the engagement hole described in FIG.

In the fourth embodiment, in order to determine the mounting direction of the metal mask 42 to the stretching jig 41, the number of the engagement pins 43 and the engagement holes 44 near the corner member 9, in this embodiment, is changed. In the case of the fourth embodiment, the arrangement density of the engagement pins is changed by increasing by one.

  The number of the engagement pins 43 and the engagement holes 44 can be decreased instead of being increased, and the number can be one or more.

  Further, by attaching marks such as coloring near the engagement pins 73 and the engagement holes 74 having different arrangement densities from those of the other engagement pins 19 and the engagement holes 20, the metal mask can be attached to the tensioning jig. It becomes easy.

FIG. 15 shows a tension jig and a metal mask of Example 5.
(A) is a tension jig, (b) is a metal mask stretched on the tension jig shown in (a).
In addition, also about Example 5, since description of the part which is common in Example 1 becomes complicated, it abbreviate | omits and only a different item from Example 1 is demonstrated.
Also, since the items described in FIG. 6 are the same as those in the fifth embodiment, they will be omitted similarly.

  In the fifth embodiment, in order to determine the mounting direction of the metal mask 47 to the tension jig 46, a specific corner member, in this embodiment, the engagement pin 43 and the engagement hole 44 near the corner member 9 are engaged with other engagement members. The pin 19 and the engagement hole 14 are arranged at a position deviating from the straight line in which the pin 19 and the engagement hole 14 are arranged.

  The positions of the engagement pin 48 and the engagement hole 49 can be close to the frame member 4.

  The positions of the engagement pin 48 and the engagement hole 49 can be close to or far from the corner member 9.

  Further, by attaching marks such as coloring near the engagement pin 73 and the engagement hole 74 that are arranged away from the other engagement pins 19 and the engagement holes 20, Installation work becomes easy.

The tension jig and metal mask of Example 6 will be described with reference to FIGS.
FIG. 16 shows the structure of the tensioning jig and the metal mask of Example 6, and how the mounting direction of the metal mask to the tensioning jig is determined by FIG.

  16A shows a tensioning jig, and FIG. 16B shows a metal mask stretched on the tensioning jig shown in FIG.

In this figure, the engagement pins provided in the extension members 16 and 17 of the extension jig 81 and the corresponding engagement holes formed in the metal mask 82 are arranged linearly.
On the other hand, the engagement pins formed in the extension members 15 and 18 and the corresponding engagement holes formed in the metal mask 82 are curved, and in the case of this embodiment, the central portion is in a direction away from the frame members 4 and 7. It has a curved shape.

How the direction in which the metal mask 82 is attached to the tensioning jig 81 is determined will be described with reference to FIG.
Note that the directions of the metal masks shown in FIGS. 17A, 17B, 17C, and 17D are the same as those in FIG. 6, and thus the repetitive description is omitted so as not to be complicated.
In this figure, the straight lines and curves shown on the outside of the metal mask are the arrangement shapes of the engagement pins provided on the tension jig 81, and the straight lines and curves shown on the inside of the metal mask 82 are the arrangement of the engagement holes. Shape.

  In the correct mounting direction shown in FIG. 6A, the engagement pin array 83 and the engagement hole array 87 correspond to the engagement pin array 86 and the engagement hole array 90, and the jig for attaching the metal mask is attached. be able to.

  In the mounting direction in which the left and right sides are reversed as shown in (b), the engagement pin array 83 and the engagement hole array 57 correspond to each other, but the engagement pin array 86 and the engagement hole array 90 do not correspond to each other. Therefore, the metal mask cannot be attached to the tension jig.

  In the mounting direction upside down shown in (c), the engagement pin array 86 and the engagement hole array 80 correspond, but the engagement pin array 53 and the engagement hole array 87 do not correspond. Therefore, the metal mask cannot be attached to the tension jig.

  In the mounting direction of the upside down rotation shown in (d), since the engagement pin array 83 and the engagement hole array 87 and the engagement pin array 86 and the engagement hole array 90 do not correspond to each other, the metal mask is used. Cannot be attached to a tensioning jig.

  As long as the engagement pin arrays 53 and 56 and the engagement hole arrays 87 and 90 have different shapes at opposite positions, the bending directions and shapes may be any.

  Further, by attaching marks such as coloring near the engagement pin arrays 83 and 86 and the engagement hole arrays 87 and 90 that are not arranged in a straight line, it is easy to attach the metal mask to the tension jig.

In Examples 7 to 9, the engagement pin and the engagement hole are not used as the attachment direction restricting portion.
FIG. 18 shows a seventh embodiment of the invention according to this application and relates to a metal mask and a tensioning jig using the holding frame shown in FIG.
In this figure, (a) shows a tension jig, (b) shows a metal mask stretched on the tension jig shown in (a), and (c) shows a holding frame. is there.

  The tension jig 81 shown in (a) is composed of four hollow frame members 4, 5, 6, and 7 and corner members that connect the frame members by inserting legs into the open ends of the frame members. The distance between the members can be changed.

Rectangular and is Zhang設治device 91 extending member from the inner portion of each of the frame member surface some distance of the frame members 4, 5, 6, 7 are provided for the engagement pin engaging pin on each extension member The head is provided so as not to protrude from the surface formed by the frame member.

  In addition, positioning holes 94, 25, 26, and 27 are formed in each extension member. Among these positioning holes 25, 26, and 27 are formed at the center of each extension member, but the positioning hole 94 is formed at a position other than the center of the extension member 86.

In the metal mask 92 shown in (b), an engagement hole is formed in the peripheral portion, and in addition, positioning guide holes 95, 29, 30, and 31 are formed.
These positioning guide holes 29, 30, and 31 are formed at the center of each peripheral portion, but the positioning guide hole 95 is formed at a position other than the center of the peripheral portion.

  The pressing frame tool 93 shown in FIG. 4C is provided with four positioning pins 96, 34, 35, and 36. Among these positioning pins 34, 35, and 36 are provided in the center of the frame sides of the pressing frame tool, but the positioning pin 96 is formed at a position other than the center.

  The positions of the positioning guide hole 94 of the tension jig frame 91, the positioning hole 95 of the metal mask 92, and the pressing frame tool 93 correspond to each other.

  The positioning guide holes 94 and 95 and the positioning guide pins 95 that are not provided in the center have the same functions as the engagement holes and the engagement pins of the embodiment described above, and the mounting direction of the metal mask to the tensioning jig Is determined.

  The relationship between the positioning hole and the positioning guide hole may be such that the size of one positioning hole and the positioning guide hole is different or the shape is different.

  Also, coloring marks or the like are marked on the positioning pins 96, the positioning guide holes 95, and the positioning holes 94 having positions, diameters, or shapes different from those of the other positioning pins 34 to 36, the positioning guide holes 29 to 31 and the positioning holes 25 to 27. By attaching it, it is easy to attach the metal mask to the tension jig.

The tensioning jig and metal mask of Example 8 will be described with reference to FIGS.
(A) shows a tension jig, (b) shows a metal sheet stretched on the tension jig shown in (a), and (c) shows a metal sheet attached to the tension jig. FIG.

  As explained with reference to FIG. 5, notches are formed at the four corners of the metal mask as necessary in order to relieve stress generated at the corner when the tension is applied to the corner of the metal mask by a tensioning jig. Is done.

  If the metal mask with the cutouts is attached to the tensioning jig, there will be openings at the four corners of the tensioning jig, and there is a risk of injury to the operator due to this opening, in order to eliminate this danger. Projection pieces are provided on each corner member.

In the four corners of the metal mask 72 shown in FIG. 19B, quadrant cutout portions 55, 57, and 58 are formed.
Further, projecting pieces 51, 94, 53, 54 are provided on the corner members 43, 93, 45, 46 of the tension jig 91 shown in FIG.

Among the four notches, the notches 55, 57, 58 are quadrants with the same radius, and the notch 95 is a quadrant with a smaller diameter than the notches 55, 57, 58. is there.
Of the four projecting pieces, the projecting pieces 51, 53, 54 are quadrants having the same radius, and the projecting piece 94 is a quadrant having a smaller diameter than the projecting pieces 51, 53, 54. is there.

  As shown in the enlarged view shown in (c), when the small-diameter protruding piece 94 corresponds to the small-diameter notch 95, the metal mask 92 is attached to the tensioning jig 91.

How the direction in which the metal mask 92 is attached to the tensioning jig 91 is determined will be described with reference to FIG.
Since the directions of the metal masks shown in FIGS. 20A, 20B, 20C, and 20D are the same as those in FIG. 11, the re-explanation is omitted so as not to become complicated.

  In the correct direction shown in (a), the small-diameter protruding piece 94 and the small-diameter cutout portion 95 correspond to the other large-diameter protruding piece and the large-diameter cutout portion, and the metal mask is used as a tensioning jig. Can be attached.

Since the large-diameter protruding piece 51 corresponds to the small-diameter cutout portion 95 in the left-right inversion direction shown in (b), the metal mask cannot be attached to the stretching jig.
At this time, the small-diameter protruding piece 94 corresponds to the large-diameter cutout portion 55.

Since the large-diameter protruding piece 54 corresponds to the small-diameter notch portion 95 in the direction of upside down shown in (c), the jig for attaching the metal mask cannot be attached.
At this time, the small-diameter protruding piece 94 corresponds to the large-diameter cutout portion 58.

In the upside down direction shown in (d), the large-diameter protruding piece 53 corresponds to the small-diameter notch portion 95, and the metal mask cannot be attached to the stretching jig.
At this time, the small-diameter protruding piece 94 corresponds to the large-diameter cutout portion 57.

  The shapes of the notches 55, 95, 97, 98 and the projecting pieces 51, 94, 53, 54 may be any shape other than a sector quadrant.

  Further, the relationship between the notch and the protruding piece is that the size of one notch and the protruding piece is larger than the other three notched parts and the protruding piece, or one notch. You may make it make the shape of a part and a protruding piece differ from the shape of the other three notch parts and a protruding piece.

  In addition, the metal mask is stretched by attaching marks such as coloring near the protruding piece 94 and the notch 95 that are different in size or shape from the other protruding pieces 51 to 53 and the notches 55 to 57. The attachment work to the tool becomes easy.

Embodiment 9 will be described with reference to FIG.
In the ninth embodiment, the mounting direction restricting configuration by the arrangement of the engaging pins and the engaging holes shown in FIG. 15 is realized by the outer peripheral portion of the metal mask and the shape of the corresponding adjusting jig.
In FIG. 15, (a) is a tensioning jig, and (b) is a metal mask stretched on the tensioning jig shown in (a).
In addition, also about Example 9, since the description of the part which is common in Example 1 becomes complicated, it abbreviate | omits and demonstrates only a different item from Example 1. FIG.
Also, the items described in FIG.

  In the ninth embodiment, in order to determine the mounting direction of the metal mask 92 to the tension jig 91, a protrusion 83 having a shape different from that of other portions is formed near a specific corner, in this embodiment, near the corner member 9. A notch 84 is formed on the corresponding outer periphery of the mask.

  In addition to the combination of notches and protrusions, the mounting direction restricting configuration can have any shape.

  In many cases, the top and bottom direction of the metal mask is determined by humans, and only reversal of the front and back is required. An embodiment in such a case will be described as a tenth embodiment with reference to FIGS.

  When attaching the metal mask to the tensioning jig frame, if the top and bottom of the metal mask are not questioned, the mounting direction restriction configuration provided on the metal mask and the tensioning jig frame is point-symmetric with respect to the center of the metal mask and the tensioning jig frame. Also formed in position.

  FIG. 22 shows the structure of the tensioning jig and the metal mask according to the tenth embodiment. FIG. 23 explains how the function of the tenth embodiment, that is, how to attach the metal mask to the tensioning jig is determined.

In FIG. 22, (a) is a tension jig, and (b) is a metal mask to be stretched shown in (a).
In the tensioning jig and the metal mask of the tenth embodiment, the mounting direction restricting portion of the first embodiment is also provided at a point-symmetrical position with respect to the centers of the tensioning jig and the metal mask.

  The diameter of the engaging pin 54 disposed near one corner of the stretching jig 93 and the engaging pin 95 disposed at a point-symmetrical position with respect to the engaging pin 54 with respect to the center of the stretching jig and the metal mask is the other. The diameter of the engagement pin 58 is larger than that of the engagement pin. The engagement hole 58 is located near one corner of the metal mask 94, and is placed symmetrically with the engagement hole 58 with respect to the center of the extending jig and the metal mask. The diameter of the engagement hole 96 is larger than that of the other engagement holes.

The directions of the metal mask shown in FIGS. 23A, 23B, 23C, and 23D are the same as those of the metal mask described in FIG.
FIG. 4A shows the upright back surface. The large-diameter engagement pin 54 has a large-diameter engagement hole 58 and the large-diameter engagement pin 95 has a large-diameter engagement hole 96. Since it corresponds, each can be engaged and attached.
(B) shows an upright front side surface. The small-diameter engagement hole corresponds to the large-diameter engagement pin 54, and the small-diameter engagement hole corresponds to the large-diameter engagement pin 95. Therefore, they cannot be engaged and cannot be attached.
(C) shows the inverted back surface, the large-diameter engagement pin 96 corresponds to the large-diameter engagement pin 54, and the large-diameter engagement hole 58 corresponds to the large-diameter engagement pin 95. Therefore, each can be engaged and attached.
(D) shows an inverted front surface, with a small diameter engagement hole corresponding to the large diameter engagement pin 54 and a small diameter engagement hole corresponding to the large diameter engagement pin 95. Therefore, they cannot be engaged and cannot be attached.

When the metal mask and the stretching jig are square, only the reverse of the front and back is a problem, and not only the vertical direction but also the direction rotated by 90 ° may be used.
An embodiment in such a case will be described as an embodiment 11 with reference to FIGS.

  When attaching the metal mask to the tensioning jig frame, if the top and bottom of the metal mask are not questioned, the mounting direction restriction configuration provided on the metal mask and the tensioning jig frame is point-symmetric with respect to the center of the metal mask and the tensioning jig frame. Also formed in position.

  FIG. 24 shows the structure of the tensioning jig and metal mask of Example 11, and how the function of Example 11, that is, the mounting direction of the metal mask to the tensioning jig is determined by FIGS.

In FIG. 24, (a) is a tension jig, and (b) is a metal mask stretched as shown in (a).
The tensioning jig and the metal mask of Example 11 are further provided with a mounting direction restricting portion provided at a point-symmetrical position with respect to the centers of the tensioning jig and the metal mask of Example 10 and further rotated by 90 °. Yes.

  The tension jig 100 shown in FIG. 5A has a square shape in which the tension jig frames 102, 103, 104, and 105 have the same length, and the metal mask 10 attached to the tension jig 100 also has a square in which the four circumferences have the same length. Shape.

A tensioning jig frame 102 corresponding to the tensioning jig frame 4 of FIG.
A metal mask of the tension jig frame 104 corresponding to the tension jig frame 6 of FIG. 10 and a large engagement pin 108 are formed at a point-symmetrical position with respect to the center of the tension jig frame. Further, the tension jig frame 104 and the tension jig Engagement pins 107 and 109 having large diameters are the engaging pins at the corresponding positions of the extending jig frame 103 and the extending jig frame 105 at a position rotated by 90 ° with respect to the center.

  Engagement holes 110 to 113 at positions corresponding to the large-diameter engagement pins 106 to 109 shown in (a) are formed in a large diameter in the square metal mask shown in (b).

The attachment direction restriction will be described.
FIG. 25 shows a state in which the correct direction, that is, the pattern F is mounted upside down.
In the mounting direction shown in (a), the large-diameter engagement hole 110 is formed in the large-diameter engagement pin 106, the large-diameter engagement hole 111 is formed in the large-diameter engagement pin 107, and the large-diameter engagement pin. Since the large-diameter engaging hole 112 corresponds to 108 and the large-diameter engaging pin 109 corresponds to the large-diameter engaging hole 113, attachment is possible.
In the mounting direction shown in (b),
A large-diameter engagement hole 111 is formed in the large-diameter engagement pin 106, a large-diameter engagement hole 112 is formed in the large-diameter engagement pin 107, and a large-diameter engagement hole 113 is formed in the large-diameter engagement pin 108. Since the large-diameter engagement hole 110 corresponds to the large-diameter engagement pin 109, it can be attached.
In the mounting direction shown in (c),
A large-diameter engagement hole 112 is formed in the large-diameter engagement pin 106, a large-diameter engagement hole 113 is formed in the large-diameter engagement pin 107, and a large-diameter engagement hole 110 is formed in the large-diameter engagement pin 108. Since the large-diameter engagement hole 111 corresponds to the large-diameter engagement pin 109, it can be attached.
In the mounting direction shown in (d),
A large-diameter engagement hole 113 is formed in the large-diameter engagement pin 106, a large-diameter engagement hole 110 is formed in the large-diameter engagement pin 107, and a large-diameter engagement hole 111 is formed in the large-diameter engagement pin 108. Since the large-diameter engagement pin 112 corresponds to the large-diameter engagement pin 109, it can be attached.

FIG. 26 shows a state in which the wrong direction, that is, the pattern F is about to be attached face up.
In the mounting direction shown in (a), the large-diameter engaging pins 106, 107, 108, and 109 do not correspond to the large-diameter engaging holes 112, 111, 110, and 113, so that the mounting is impossible.
In the mounting direction shown in (b), the large-diameter engaging pins 106, 107, 108, 109 and the large-diameter engaging holes 111, 110, 113, 112 do not correspond and cannot be mounted.
In the mounting direction shown in (c), the large-diameter engaging pins 106, 107, 108, and 109 do not correspond to the large-diameter engaging holes 110, 113, 112, and 111, and therefore cannot be mounted.
In the mounting direction shown in (d), the large-diameter engaging pins 106, 107, 108, and 109 do not correspond to the large-diameter engaging holes 113, 112, 111, and 110, and therefore cannot be mounted.

An embodiment in which a metal mask is indirectly stretched on a stretching jig using a stretching frame will be described.
Example 11 in which the tension frame described in FIGS. 6 and 7 is used as shown in FIG. 27 and is indirectly stretched by the engagement protrusions formed on the tension jig frame and the engagement grooves formed on the tension frame material. A tension jig and a metal mask will be described.
The description of the configuration corresponding to FIG. 6 is omitted, and only the mounting configuration corresponding to FIG. 7 will be described.

  In FIG. 27, the tensioning jig 201 shown in FIG. 27A is a surface on the side where the tensioning frame 202 is attached, and the tensioning jig 202 shown in FIGS. It is.

The tension jig 131 shown in FIG. 6A is a corner member in which four hollow jig frame members 110, 111, 112 and 133 and L-shaped legs are inserted into the open ends of these jig frame members. It is composed of
On the surface of the three jig frame members 110, 111, 112 on the side where the extending frame is attached, continuous engagement ridges 122, 123, 124 having a cross-sectional dovetail shape are formed.
Discontinuous protruding ridges 134 and 135 having a dovetail cross section are formed on the surface of one jig frame member 133 on the side where the tension frame is attached.
The tension jig 131 has the same shape and the same mechanism as the tension jig 1 shown in FIG. 1 except that the shape of the tension frame attachment surfaces of the jig frame members 109, 110, 111, and 112 is different.

Shown in (b) is an upright tension frame 132.
In the extending frame 132 shown in FIG. 5B, linear extending frame members 105, 106, 107, and 136 made of an aluminum material having a thickness of several millimeters are integrally formed by means such as welding.
On the surface of the tension frame members 105, 106, and 107 facing the tension jig 131, continuous engagement grooves 118, 119, and 120 having a dovetail cross section are formed.
Discontinuous engaging grooves 137 and 138 having a cross-sectional dovetail shape are formed on the surface of the tension frame member 136 facing the tension jig 131.
The metal mask 103 on which the English letter “F”, which is the printing pattern 104, is formed is attached to the surface of the tension frame 132 where the engagement groove is not formed.

  The tension frame 132 includes a structure in which tension frame members 105, 106, 107, and 136 are integrally formed by means of welding or the like, and openings at both ends of the tension frame members 105, 106, 107, and 136. In some cases, the end of the L-shaped corner member is inserted into the opening, and the tension frame can be deformed.

  It is also possible to form an engagement groove in the tensioning jig frame 131 and form an engagement protrusion on the tensioning frame 132.

  The tension frame 132 has an engaging groove formed on one surface and a metal mask attached to the other surface, so that it cannot be turned over, and the upright print pattern “F” 104 or inverted There is only attachment of the printed pattern “F”.

  When the upright tension frame 132 shown in (b) is attached to the tension jig 131 shown in (a), the engagement protrusion 122 and the engagement groove 120 are connected to the engagement protrusion 123 and the engagement groove. Since the groove 119 is engageable with the engagement ridge 124 and the engagement groove 118, the engagement ridge 134 and the engagement groove 138 is engageable with the engagement ridge 135 and the engagement groove 137, respectively. The frame 132 can be attached to the tension jig 131.

Shown in (c) is an inverted tension frame 132.
When the inverted tension frame 132 is attached to the tension jig 131 shown in (a), the engagement ridge 122 and the engagement groove 120 can be engaged, and the engagement ridge 124 and the engagement groove 118 can be engaged. However, the engagement groove 119 continuous to the discontinuous engagement protrusions 134 and 135 cannot be engaged with the engagement groove 138 and 137 discontinuous to the continuous engagement protrusion 123, respectively. Therefore, the tension frame 132 cannot be attached to the tension jig 131.

In the prior art of FIGS. 6 and 7, the engagement protrusions and the engagement grooves formed symmetrically both vertically and horizontally are asymmetrically formed in the ninth embodiment, so that the mounting posture is limited. Therefore, the present invention can be implemented in various forms as long as the engaging ridges and the engaging grooves are formed asymmetrically.
However, since there are only two possible mounting postures, only one engaging protrusion and engaging groove that are asymmetrical are sufficient.

  Also, by attaching marks such as coloring to the ridges 134 and 135 and the groove 137 and 138 different from the other three ridges or grooves, the work of attaching the metal mask to the tensioning jig becomes easy. .

Several modified examples of Example 11 are shown.
In Example 11 shown in FIG. 27, the discontinuous engagement ridges and the discontinuous engagement grooves are formed in the upper frame member. However, in Example 12, as shown in FIG. Discontinuous engagement ridges 143 and 144 are formed on one of the left and right sides of the frame, and discontinuous engagement grooves 145 and 146 are formed on the corresponding one of the tension frame 142 as shown in FIG. You can also.

  Also, by attaching marks such as coloring on the ridges 143 and 144 and the grooves 1145 and 146 different from the other three ridges or grooves, the metal mask can be easily attached to the tensioning jig. .

  In the eleventh embodiment, the discontinuous engagement ridges and the discontinuous engagement grooves have the same length, but in the thirteenth embodiment, as shown in FIG. The joint protrusion 153 and the short discontinuous engagement protrusion 154 are formed, and the long discontinuous engagement groove 155 and the short discontinuous engagement protrusion 156 are formed in the tension frame 152 as shown in FIG. You can also

  Further, the short discontinuous engaging ridges 154 and the short discontinuous engaging ridges 156 are eliminated, and only a slightly shorter engaging ridge 153 and a slightly shorter engaging groove 155 are provided, or the short discontinuous engaging ridges 154 are short. A short discontinuous engaging protrusion 156 may be added to form a slightly longer engaging protrusion 153 and a slightly longer engaging groove 155.

  In addition, by attaching a mark such as coloring to one or both of the short discontinuous engagement ridges 154 or the long discontinuous engagement ridges 153, the work of attaching the metal mask to the tensioning jig becomes easy.

  In Example 11, only the engaging protrusions were formed on the tensioning jig and only the engagement grooves were formed on the tensioning frame, but in Example 12, one of the tensioning jigs 161 was formed as shown in FIG. Engaging grooves 163 are formed only on one frame member, and engaging ridges are formed on one corresponding frame member of the extending frame 162 as shown in FIG. Engagement ridges can be formed on three frame members, and engagement grooves can be formed on the other three frame members of the tension frame 162.

  In addition, by attaching a mark such as coloring to the concave groove 151 and the convex strip 164 which are different from each other, it is easy to attach the metal mask to the tensioning jig.

  In Example 11, the engaging protrusions formed on the tensioning jig and the engaging grooves formed on the tensioning frame are linear, but in Example 15, the tensioning jig 171 as shown in FIG. 31 (a). Only one frame member is formed with a crank-shaped engaging ridge 173, and as shown in (b), a corresponding groove of the extending frame 172 is provided with a groove for engaging the crank shape. It can also be formed.

  Other than the crank shape, a bent linear shape, zigzag shape, curved shape, diagonal shape, and the like are possible.

  In addition, by attaching marks such as coloring to the protruding ridges 173 and the concave grooves 174 having different shapes, it is easy to attach the metal mask to the tensioning jig.

FIG. 32 is a perspective view of the embodiment 14 in which the tension frame described in FIGS. 8 and 9 is used, and the tension is indirectly stretched by the engagement protrusions formed in the corner member of the tension jig and the engagement holes formed in the tension frame. A tension jig and a metal mask will be described.
The description of the configuration corresponding to FIG. 8 is omitted, and only the mounting configuration corresponding to FIG. 9 will be described.

  The tension jig 201 shown in FIG. 6A is a surface on the side where the tension frame 202 is attached, and the tension jig 202 shown in FIGS.

The tension jig 231 shown in FIG. 4A is a corner member in which four hollow jig frame members 209, 210, 211, and 212 and L-shaped legs are inserted into the open ends of these jig frame members. 205, 206, 207 and 233.
On the surface of the corner members 205, 206, 207, and 233 on the side where the tension frame is attached, each of the three engaging protrusions 221, 222, 224 having the same shape is different from the shapes of the other engaging protrusions. One engagement protrusion 234 is formed.
The tension jig 231 has the same shape and the same mechanism as the tension jig 1 shown in FIG. 1 except that the shapes of the tension frame mounting surfaces of the corner members 205, 206, 207, and 233 are different.

  The extending frame 232 shown in (b) is formed by integrally forming linear extending frame members 213, 214, 215, and 216 made of an aluminum material having a thickness of several millimeters by means of welding or the like. Three engagement holes 217, 218, 219 having the same shape and one engagement hole 235 having a shape different from the other three engagement holes are formed on the surface facing the corner member. The metal mask 203 on which the English letter “F”, which is the print pattern 204, is formed is attached to the surface on which no engagement hole is formed.

  The shape of the three engagement holes 217, 218, 219 corresponding to the three engagement protrusions 221, 222, 224 is the same, and one engagement hole corresponding to the one engagement protrusion 234 Needless to say, the shape of 235 is the same.

  The tension frame 232 includes a structure in which tension frame members 213, 214, 215, and 216 are integrally formed by means of welding or the like, and openings at both ends of the tension frame members 213, 214, 215, and 216. In some cases, the end of the L-shaped corner member is inserted into the opening, and the tension frame can be deformed.

  It is also possible to form an engagement hole in the tensioning jig frame 231 and form an engagement projection in the tensioning frame 232.

  Since the tension frame 232 has an engagement hole on one surface and a metal mask attached to the other surface, it cannot be turned upside down, and the upright print pattern “F” or the inverted print There is only the attachment of pattern “F”.

  When the upright tension frame 232 shown in (b) is to be attached to the tension jig 231 shown in (a), the engagement protrusion 224 and the engagement hole 217 are connected to the engagement protrusion 221 and the engagement hole. Since the engagement protrusion 222 and the engagement hole 219 have the same shape, and the engagement protrusion 234 and the engagement hole 235 have the same shape, each can be engaged, and the tension frame 232 is attached to the tension jig 231. Can be attached.

Shown in (c) is an inverted tension frame 232.
When this inverted tension frame 232 is to be attached to the tension jig 231 shown in (a), the engagement protrusion 224 and the engagement hole 219 have the same shape, and the engagement protrusion 222 and the engagement hole 217 have the same shape. Although the engagement protrusion 221 and the engagement hole 216 are not engageable because the engagement protrusion 234 and the engagement hole 218 have different shapes, the tension frame 232 is attached to the tension jig 231. It cannot be installed.

  Although the example in which the shapes of the engagement protrusions and the engagement holes are different is shown in the sixteenth embodiment, it is also possible to use different sizes, different numbers, and different positions.

Since the engaging projections and the engaging holes formed symmetrically both vertically and horizontally in the prior art of FIGS. 9 and 10 are formed asymmetrically in Example 14, the mounting posture is limited. As long as the engagement protrusion and the engagement hole are formed asymmetrically, various forms can be implemented.
However, since there are only two possible mounting postures, only one engaging protrusion and engaging hole that are asymmetrical are sufficient.

Several modified examples of Example 16 are shown.
In Example 16, all the engagement protrusions are formed in the corner member of the tension jig, and the engagement holes are formed in the tension frame. In the seventeenth embodiment, as shown in FIG. 33A, the engagement protrusions 221, 222, and 224 are formed on the three corner members of the tension jig 242, and the engagement hole 243 is formed on one corner member. , (B), engagement holes 217, 218, 219 are formed at positions corresponding to the engagement projections 221, 222, 224 of the three corner members, and the engagement holes 243 of one corner member are formed. The engaging protrusion 244 can also be formed at a position corresponding to.

In Example 18, Example 14 is combined with the conventional example shown in FIG. 7 as it is. 34, the tensioning jig 241 shown in FIG. 34 (a) has one engaging piece 121, 122, 123, 124 and three engaging projections 221, 222, 224 having the same shape as the corner member. An engagement protrusion 234 is formed.
The tension frame 242 shown in FIG. 6B is formed with one engagement protrusion 235 having a shape different from that of the three engagement protrusions 217, 218, 219 having the same shape together with the engagement holes 117, 118, 119, 120. Has been.

  The tension jig 251 of the nineteenth embodiment is obtained by removing the engagement protrusions 221, 222, and 224 from the tension jig 241 of the sixteenth embodiment, and the tension frame 252 is formed from the tension frame 242 of the sixteenth embodiment by the engagement holes 217, 218 and 219 are removed.

  Further, by attaching coloring marks or the like to the engagement protrusions 234 and the engagement holes 235, the attachment work of the metal mask to the tension jig is facilitated.

The invention according to this application can prevent the occurrence of defective products in screen printing by giving the shape of the metal mask or screen mesh used in screen printing to the top / bottom / left / right or front / back.
Since this metal mask cannot be attached to the tension jig in the wrong direction, the metal mask can be attached in the correct direction even if the operator does not pay special attention visually.
Furthermore, when the metal mask is automatically replaced, it can be easily attached in the correct direction.

1, 13, 21, 41, 51, 61, 66, 71, 76, 81, 91, 100, 131, 141, 151, 161, 171, 201, 231, 241, 251 Tensioning jig frames 2, 14, 22, 42, 52, 62, 67, 72, 77, 82, 92, 103, 203, 15, 37, 65 Metal mask 4, 5, 6, 7, 109, 110, 111, 112, 209, 210, 211, 212 Tensioning jig frame member 8, 9, 10, 11, 43, 44, 45, 46, 93, 105, 106, 107, 108, 205, 206, 207, 208 Corner member 12 Print pattern 10, 11, 12, 13, 30, 31, 315, 16, 17, 18 Extension member 19 Engagement pin 20 Engagement hole 23, 93 Holding frame 25, 26, 27, 94 Positioning hole 29, 30, 31, 95 Position Female guide holes 34, 35, 36, 96 Positioning pins 51, 52, 53, 54, 55, 57, 58 Notch portions 57, 60, 87, 88, 89, 90 Engagement hole arrangement shapes 51, 52, 53 , 54, 94 Protruding pieces 83, 84, 85, 86 Arrangement shape of engaging pins

Claims (17)

Screen printing for attaching a rectangular metal mask having a plurality of engagement holes on the periphery to a tension jig frame that is a combination of four frame members having a plurality of engagement pins corresponding to the engagement holes. A device,
The engagement pins arranged on the three of the frame members are uniformly configured, and the corresponding three peripheral engagement holes of the metal mask are configured uniformly.
The screen printing is characterized in that the engaging pins arranged on the other one of the frame members are non-uniformly configured, and the corresponding peripheral edge engaging holes of the metal mask are non-uniformly configured. apparatus. 2. The screen printing apparatus according to claim 1, wherein a mark for distinguishing the unevenly configured portion from other uniformly configured portions is attached. The engagement portion of the metal mask is a plurality of engagement holes formed on the periphery, the engagement portion of the tension jig frame is an engagement pin,
The screen printing apparatus according to claim 1, wherein the engagement hole is directly engaged with the engagement pin. 4. The screen printing apparatus according to claim 3, wherein the diameter of one engagement pin near one corner of the tension jig frame is different from the diameters of the other engagement pins. 4. The screen printing apparatus according to claim 3, wherein the shape of one engagement pin near one corner of the tension jig frame is different from the shape of the other engagement pins. 4. The tension jig frame according to claim 3, wherein an arrangement interval of one engagement pin near one corner of the tension jig frame is different from an arrangement interval of other engagement pins. 4. The screen printing apparatus according to claim 3, wherein an arrangement density of engagement pins near one corner of the tension jig frame is different from an arrangement density of other engagement pins. 4. The screen printing apparatus according to claim 3, wherein the arrangement shape of the engagement pins near one corner of the tension jig frame is different from the arrangement shape of the other engagement pins. 4. The screen printing apparatus according to claim 3, wherein the arrangement shape of the engagement pins on two sides adjacent to one corner of the tension jig frame is different from the arrangement shape of the engagement pins on the other two sides. The four frame members of the stretching jig frame are joined by four corner members,
Protruding portions are formed on the four corner members so as to project inside the tension jig frame,
Three of the protrusions have the same shape,
4. The screen printing apparatus according to claim 3, wherein one of the protrusions has a shape different from that of the three protrusions. 4. The screen printing apparatus according to claim 3, wherein the diameter of one engagement hole near one corner of the metal mask is different from the diameters of the other engagement holes. 4. The screen printing apparatus according to claim 3, wherein the shape of one engagement hole near one corner of the metal mask is different from the shape of other engagement holes. The screen printing apparatus according to claim 3, wherein an arrangement interval of one engagement hole near one corner of the metal mask is different from an arrangement interval of other engagement holes. The screen printing apparatus according to claim 3, wherein an arrangement density of engagement holes near one corner of the metal mask is different from an arrangement density of other engagement holes. 4. The screen printing apparatus according to claim 3, wherein the arrangement shape of the engagement holes near one corner of the metal mask is different from the arrangement shape of the other engagement holes. 4. The screen printing apparatus according to claim 3, wherein the arrangement shape of the engagement holes on the two sides adjacent to one corner of the metal mask is different from the arrangement shape of the engagement holes on the other two sides. Notches are formed in the four corners of the metal mask,
Three of the cutouts have the same shape,
4. The screen printing apparatus according to claim 3, wherein one of the cutout portions has a shape different from that of the three cutout portions.

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