JP5988833B2 - Screen plate and jig for screen plate - Google Patents

Description

  The present invention relates to a screen plate used in screen printing, and a screen plate jig attached to the screen plate used in screen printing.

  As a conventional screen plate used for screen printing, for example, as in the screen plate described in Patent Document 1, a screen frame, a screen attached to the screen frame, and a squeegee at an interval substantially in contact with both sides of the squeegee used. And a paste guide installed on the screen in parallel with the moving direction of the screen.

  FIG. 7 is a perspective view showing a schematic configuration of a conventional screen plate 10A described in Patent Document 1. As shown in FIG.

  As shown in FIG. 7, in the screen plate 10A described in Patent Document 1, the screen 12A having the print pattern 1A is attached to the screen frame 11A, and the paste guides 13A and 13A (paste guide members) are attached to the screen frame 11A. The screen 12A is provided with a narrower interval than the width of the screen 12A with the print pattern 1A interposed therebetween.

  Specifically, in the screen plate 10A described in Patent Document 1, the paste guides 13A and 13A are screwed onto the outer side surfaces 15A and 15A of the screen frame 11A in the squeegee movement direction X of the paste guides 13A and 13A by screws 14A and 14A. Supported and fixed. Further, paragraph [0009] of Patent Document 1 also describes that the paste guides 13A and 13A are directly fixed on the screen 12A.

JP-A-5-58074

  However, as described in Patent Document 1, when the paste guide member is supported and fixed on both outer side surfaces of the screen frame, the screen frame is easily bent (distorted) inward by a load applied to support the paste guide member. . As described above, when the screen frame is bent inward, there is a problem in that the printing accuracy is adversely affected.

  Further, as described in Patent Document 1, when the paste guide member is directly fixed on the screen, when the squeegee presses the screen when performing screen printing, a load is applied to the screen, particularly in the vicinity of a fixed portion of the screen with the paste guide member. There is also a problem that a large load is applied at the time and the life of the screen plate is shortened.

  Therefore, the present invention makes it difficult to bend the screen frame inward, thereby suppressing adverse effects on printing accuracy and reducing the load on the screen when performing screen printing. An object of the present invention is to provide a screen plate and a jig for a screen plate that can suppress a decrease in the life of the screen plate.

  In order to solve the above-mentioned problems, the present invention provides the following screen plate and screen plate jig.

(1) Screen plate A screen frame, a screen attached to the screen frame and having a print pattern, and a space narrower than the width of the screen with the print pattern sandwiched on the screen attached to the screen frame The paste plate is a plate-shaped member formed by bending a metal plate, and the screen frame includes a pair of paste guide members provided on the screen frame. A screen plate, wherein the screen plate is fixed to a surface on the opposite side of the screen from which the screen is attached, and has a side wall surface on the printed pattern side and upward with respect to the screen.

(2) Screen plate jig A screen plate jig attached to a screen plate provided with a screen frame and a screen having a print pattern attached to the screen frame, and attached to the screen frame. A pair of paste guide members provided on the screen with a spacing narrower than the width of the screen across the print pattern, the paste guide members being plate-like members formed by bending a metal plate The screen frame is fixed and supported on a surface of the screen frame opposite to the screen attachment side, and has a side wall surface on the print pattern side and upward with respect to the screen. Characteristic screen plate jig.

  In the present invention, a mode in which a contact plane with the screen is formed in a portion of the paste guide member that contacts the screen can be exemplified.

  In the present invention, it is possible to exemplify an aspect in which the paste guide member can be adjusted and fixed so as to move away from the printing pattern or approach the printing pattern.

  According to the present invention, it is possible to make the screen frame difficult to be bent inward, thereby suppressing adverse effects on printing accuracy, and reducing the load on the screen when performing the screen printing. Thus, it is possible to suppress a decrease in the life of the screen plate.

1 is a perspective view showing a schematic configuration of a screen plate according to an embodiment of the present invention. It is the schematic plan view which looked at the screen plate shown in FIG. 1 from the plane. It is the schematic side view seen from the A direction along the paste guide member of the screen plate shown in FIG. It is a schematic sectional drawing in alignment with the BB line of the screen plate shown in FIG. FIG. 5 is a schematic configuration diagram illustrating a pair of paste guide members illustrated in FIGS. 1 to 4, wherein (a) to (e) are a rear view, a plan view, a front view, and a left side view of the pair of paste guide members, respectively. It is a right side view. FIG. 5 is a schematic perspective view showing, in an enlarged manner, a state in which one fixing support portion of one paste guide member is fixed to a screen frame in the screen plate shown in FIGS. 1 to 4. It is a perspective view which shows schematic structure of the conventional screen plate described in patent document 1. FIG.

  Embodiments according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view showing a schematic configuration of a screen plate 10 according to an embodiment of the present invention. FIG. 2 is a schematic plan view of the screen plate 10 shown in FIG. FIG. 3 is a schematic side view of the screen plate 10 shown in FIG. 1 as viewed from the direction A along the paste guide member 13. FIG. 4 is a schematic sectional view taken along line BB of the screen plate 10 shown in FIG.

  The screen plate 10 is used for a screen printing machine. The screen plate 10 is attached to the screen frame 11, the screen 12 attached to the screen frame 11 and having the print pattern 1, and the screen 12 attached to the screen frame 11. A pair of paste guide members 13, 13 provided at an interval narrower than the width Wa (see FIG. 1) of the screen 12 with the print pattern 1 interposed therebetween.

  The screen 12 has the print pattern 1 in a region other than the peripheral portion of the screen frame 11 while being attached to the screen frame 11. Specifically, the print pattern 1 is a region other than the peripheral portion along the squeegee movement direction X that is the moving direction of the squeegee 20 (see FIG. 2) among the peripheral portions of the screen frame 11 in the screen 12 (in this example, the screen 12 At the center).

  The screen frame 11 has a screen 12 attached to the first end surfaces 11a and 11a (lower surfaces) on one side in the height direction Z. The screen frame 11 includes a pair of frames (here, a pair of first frames 111, 111) provided on both sides in the squeegee movement direction X. Specifically, the pair of first frame bodies 111, 111 are parallel or substantially parallel to each other. Further, the screen frame 11 includes a pair of second frames 112 and 112 which intersect with the pair of first frames 111 and 111 and are parallel or substantially parallel to each other in addition to the pair of first frames 111 and 111. ing.

  Specifically, the screen frame 11 has a quadrangular shape (here, a rectangular shape) in plan view, and the pair of first frame bodies 111 and 111 and the pair of second frame bodies 112 and 112 are orthogonal to each other. It is like that. The screen frame 11 may have a square shape in plan view.

  The pair of first frames 111 and 111 extend in the width direction Y of the screen frame 11 orthogonal to the squeegee movement direction X, and the pair of second frames 112 and 112 extend in the squeegee movement direction X. The individual frame bodies constituting the pair of first frame bodies 111, 111 and the pair of second frame bodies 112, 112 have a quadrangular shape in a cross-sectional view.

  The width Wa (see FIG. 1) in the width direction Y of the screen 12 attached to the screen frame 11 (that is, the length of the pair of first frames 111, 111) is the screen 12 attached to the screen frame 11 here. The width Wb (see FIG. 1) in the squeegee moving direction X (longitudinal direction) (that is, the length of the pair of second frames 112, 112) is shorter.

  The pair of paste guide members 13, 13 is in contact with a paste mounting surface (upper surface) that is a surface on the screen 12 where the paste 30 (see FIG. 2, for example, conductive paste) is mounted. 11 in the squeegee moving direction X (here, the pair of first frames 111, 111) is the surface opposite to the screen 12 attachment side (that is, the second end surface (upper surface) on the other side in the height direction Z). 11b, 11b) and is supported. By doing so, the pair of paste guide members 13 and 13 are not fixed to the paste placement surface (upper surface) of the screen 12, and both end portions (here, the pair of first frames in the squeegee movement direction X) of the screen frame 11. The screen frame 11 can be provided without being supported on the outer side surface 15 of the body 111, 111).

  Specifically, the pair of paste guide members 13, 13 are opposite surfaces (second end surfaces (second end surfaces)) of both ends in the squeegee movement direction X (here, the pair of first frames 111, 111) on the screen 12 attachment side. The upper surface is fixed to only a part of 11b and 11b). The pair of paste guide members 13, 13 extend along the squeegee movement direction X, and are parallel or substantially parallel to each other with the printing pattern 1 in between.

  Note that the constituent elements of the reference numerals not described in FIGS. 1 to 4 will be described later with reference to FIGS. 5 and 6.

  FIG. 5 is a schematic configuration diagram showing the pair of paste guide members 13 and 13 shown in FIGS. 1 to 4. FIG. 5A to FIG. 5E respectively show a rear view, a plan view, a front view, a left side view, and a right side view of the pair of paste guide members 13 and 13. In addition, since each paste guide member 13 is substantially the same structure, in FIG. 5, it has shown by one figure.

  As shown in FIG. 5, the pair of paste guide members 13 and 13 are plate-like members formed by bending a metal plate. The pair of paste guide members 13 and 13 may be made of any metal plate as long as the screen printing operation by the squeegee 20 (see FIG. 2) can be reliably performed. From the point of view, it is preferable to use a metal plate such as stainless steel or stainless alloy.

  The pair of paste guide members 13, 13 have side wall surfaces 13 a, 13 a (see FIGS. 1 and 2) on the print pattern 1 side and above the screen 12. Specifically, side wall surfaces 13a and 13a are formed on the print pattern 1 side of the pair of paste guide members 13 and 13 along a direction intersecting the screen 12 (vertically or substantially perpendicular here). In addition, contact flat surfaces 13b and 13b (see FIG. 4) that contact (contact) the screen 12 without gaps are formed at portions of the pair of paste guide members 13 and 13 that contact the screen 12. Here, the end surface 20a in the width direction Y of the squeegee 20 in the screen printing state (see FIG. 2) and the side wall surfaces 13a and 13a of the pair of paste guide members 13 and 13 are in the squeegee movement direction X. They are formed so as to be parallel to each other with a slight distance d (see FIG. 2) so that they can move smoothly. That is, the width Wc (see FIG. 2) in the width direction Y of the squeegee 20 is such that the squeegee 20 can move more smoothly in the squeegee movement direction X than the distance D (see FIG. 1) between the pair of paste guide members 13 and 13. It is slightly smaller.

  Specifically, the pair of paste guide members 13 and 13 are in contact with the screen 12 and contact guide portions 131 and 131 (see FIGS. 1, 2 and 4) for guiding the paste 30 (see FIG. 2) and the screen. Fixed support portions (132, 132), (fixed and supported by second end surfaces (upper surfaces) 11b, 11b of both end portions (here, a pair of first frame bodies 111, 111) in the squeegee movement direction X of the frame 11 ( 132, 132) (see FIGS. 1 to 4).

  The contact guide portions 131 and 131 are bent in a direction intersecting with each other (vertically or substantially perpendicular here) by bending (specifically bending) the metal plate along the squeegee moving direction X. A guide plate portion 131a and a contact plate portion 131b (see FIGS. 1, 2 and 4) are provided. The guide plate portion 131a is formed so that the outer surface faces the counterpart paste guide member 13. Further, the contact plate portion 131 b is formed so that the outer surface faces toward the screen 12. The outer surface of the guide plate portion 131a facing the mating paste guide member 13 is the side wall surface 13a, 13a, and the outer surface of the contact plate portion 131b facing the screen 12 is the contact plane 13b, 13b. It is said that.

  Specifically, the contact guide portions 131 and 131 in the pair of paste guide members 13 and 13 are formed in an L shape in a sectional view by the guide plate portion 131a and the contact plate portion 131b (FIG. 5D). ) And FIG. 5 (e)).

  Note that constituent elements of reference numerals not described in FIG. 5 will be described later with reference to FIG.

  FIG. 6 is an enlarged schematic perspective view showing a state in which one fixing support portion 132 of one paste guide member 13 is fixed to the screen frame 11 in the screen plate 10 shown in FIGS. 1 to 4. Since the fixed support portions (132, 132) and (132, 132) are fixed to the screen frame 11 in the pair of paste guide members 13 and 13, the configuration is substantially the same. The paste guide member 13 is shown in a representative state in which one fixed support portion 132 is fixed to the screen frame 11.

  As shown in FIG. 6, the fixed support portions (132, 132) and (132, 132) intersect each other by bending (specifically bending) the metal plate along the width direction Y (specifically, bending processing). Here, the connecting plate portions (132a, 132a), (132a, 132a) and the fixed plate portions (132b, 132b), (132b, 132b) bent in the vertical or substantially vertical direction (see FIGS. 1 to 5). It has. The connecting plate portions (132a, 132a), (132a, 132a) have inner side walls 11c on the inner side at both ends of the screen frame 11 in the squeegee movement direction X (here, the pair of first frame bodies 111, 111). It is formed to face 11c. The fixed plate portions (132b, 132b) and (132b, 132b) are formed so that the inner side faces the second end surfaces (upper surfaces) 11b, 11b of the screen frame 11.

  Specifically, the connecting plate portions (132a, 132a) and (132a, 132a) are formed in parallel or substantially parallel to the inner wall surfaces 11c, 11c of the screen frame 11. The inner side surfaces of the connecting plate portions (132a, 132a), (132a, 132a) facing the inner wall surfaces 11c, 11c of the screen frame 11 are not in contact with or in contact with the inner wall surfaces 11c, 11c of the screen frame 11 (here, non-contact). Contact). Further, the connecting plate portions (132a, 132a), (132a, 132a) have one end portions (132c, 132c), (132c, 132c) in the height direction Z of the screen frame 11 at the pair of paste guide members 13, 13. The contact guide portions 131 and 131 are connected to both ends (131c, 131c) and (131c, 131c) in the squeegee moving direction X, and the other ends (132d, 132d), (132d, 132d) are fixed plate portions. (132b, 132b), (132b, 132b) are connected to one end (132e, 132e), (132e, 132e) in the squeegee movement direction X.

  The fixed plate portions (132b, 132b), (132b, 132b) are second end surfaces (upper surfaces) 11b, 11b of both end portions (here, the pair of first frame bodies 111, 111) of the screen frame 11 in the squeegee movement direction X. Are formed in parallel or substantially in parallel. The fixed plate portions (132b, 132b), (132b, 132b) have inner side surfaces facing the second end surfaces (upper surfaces) 11b, 11b of the screen frame 11 on the second end surfaces (upper surfaces) 11b, 11b of the screen frame 11. It is fixed in contact.

  Specifically, in the pair of paste guide members 13, 13, the contact plate portions (131b, 131b), (131b, 131b) and the connection plate portions (132a, 132a), (132a) in the contact guide portions 131, 131 are used. , 132a) are bent at right angles or substantially right angles (see FIGS. 5A and 5C), the connecting plate portions (132a, 132a), (132a, 132a) and the fixing plate portions (132b, 132b), (132b, 132b) are bent at right angles or substantially right angles (see FIGS. 5A and 5C).

  Further, the fixed plate portions (132b, 132b), (132b, 132b) are both ends (here, a pair) of the squeegee moving direction X of the screen frame 11 by the fixing member 14 (here, male screw) (see FIGS. 1 to 4). The first frame bodies 111, 111) have fixed portions (132f, 132f), (132f, 132f) (see FIGS. 1 to 4) that are detachably fixed to the second end surfaces (upper surfaces) 11b, 11b. doing.

  Specifically, through-holes (132g, 132g), (132g, 132g) (see FIGS. 1 to 4) are provided in the fixed portions (132f, 132f), (132f, 132f). The second end surfaces (upper surfaces) 11b and 11b of the screen frame 11 are provided with fixing portions (11d and 11d) and (11d and 11d) (here, female screws) (see FIGS. 3 and 4).

  The fixed plate portions (132b, 132b), (132b, 132b) are fixed to the fixed portions (11d, 11d), (11d, 11d) (in this case, female screws) on the second end surfaces (upper surfaces) 11b, 11b of the screen frame 11. The member 14 (here male screw) is detachably fixed (screwed here) through the through holes (132g, 132g), (132g, 132g), whereby the second end face (upper face) 11b of the screen frame 11 is secured. 11b is fixed.

  In the present embodiment, the pair of paste guide members 13, 13 can be adjusted and fixed so as to move away from the printing pattern 1 or approach the printing pattern 1. Specifically, the pair of paste guide members 13 and 13 are fixed to the screen frame 11 so as to be detachable and movable in the width direction Y. Specifically, the through holes (132g, 132g) and (132g, 132g) in the pair of paste guide members 13 and 13 extend along the width direction Y, and the inner end or the outer end (here) In FIG. 4, the outer end is an open long hole (notch hole).

  In this embodiment, the paste guide members 13 and 13 are fixed to the screen frame 11 by using the fixing member 14 (in this case, a male screw). However, the paste guide members 13 and 13 are attached by a method such as fitting or engagement. The screen frame 11 may be directly fixed.

  As described above, the screen plate 10 according to the present embodiment includes the screen frame 11, the screen 12 attached to the screen frame 11 and having the print pattern 1, and the screen 12 attached to the screen frame 11. And a pair of paste guide members 13 and 13 provided at a distance D (see FIG. 1) narrower than the width Wa (see FIG. 1) of the screen 12 with the print pattern 1 interposed therebetween. The pair of paste guide members 13 and 13 are plate-like members formed by bending a metal plate, and are surfaces of the screen frame 11 opposite to the screen 12 attachment side (that is, in contact with the screen 12 (that is, The second side end face (upper surface) 11b, 11b) (see FIGS. 1 to 4 and 6) on the other side in the height direction Z is fixed to the printed pattern 1 side and the side wall surface 13a upward with respect to the screen 12. , 13a.

  According to the present embodiment, for example, a single squeegee 20 (see FIG. 2) is moved in the squeegee movement direction X. Then, the paste 30 (see FIG. 2) is guided by the pair of paste guide members 13 and 13 and pressed onto the print pattern 1 of the screen 12 by the squeegee 20, so that the printed material (not shown) disposed below the screen 12. However, since the pair of paste guide members 13 and 13 are provided on the screen 12 with the print pattern 1 interposed therebetween, it is possible to effectively prevent the paste 30 from protruding on the screen 12. It becomes possible. The pair of paste guide members 13, 13 are in contact with the screen 12 on the opposite side of the screen frame 11 from the screen 12 attachment side (that is, the second end surface (upper surface) on the other side in the height direction Z). 11b, 11b), the pair of paste guide members 13 and 13 can be provided on the screen frame 11 without being supported on the outer side surface 15 of the screen frame 11, whereby the screen frame 11 can be placed on the inner side. Therefore, it is possible to suppress the adverse effect on the printing accuracy. Moreover, the pair of paste guide members 13, 13 is a surface opposite to the screen 12 affixing side of the screen frame 11 so as to contact the screen 12 (that is, the second end surface (upper surface) on the other side in the height direction Z). 11b, 11b), it is possible to prevent the pair of paste guide members 13, 13 from being fixed to the screen 12, so that when the squeegee 20 presses the screen 12 during screen printing, the screen 12, in particular, the load on the screen 12 can be reduced by the pair of paste guide members 13, 13, and hence the life of the screen plate 10 can be prevented from being reduced.

  Furthermore, since the pair of paste guide members 13 and 13 is a plate-like member formed by bending a metal plate, the pair of paste guide members 13 and 13 can be reduced in weight. It is possible to make it difficult to apply a load to the screen frame 11 when performing screen printing. Furthermore, a plate-shaped member can be easily and easily formed from a metal plate, and the pair of paste guide members 13 and 13 can be manufactured at low cost. In addition, the pair of paste guide members 13 and 13 have side wall surfaces 13a and 13a on the print pattern 1 side and upward with respect to the screen 12, so that the width direction of the paste 30 is increased by the side wall surfaces 13a and 13a. It is possible to easily prevent the protrusion to Y, and thus it is possible to reliably suppress the protrusion of the paste 30 in the width direction Y even if the supply amount of the paste 30 becomes excessive.

  By the way, if there is a gap between the pair of paste guide members 13 and 13 and the screen 12, the paste 30 easily protrudes from between the pair of paste guide members 13 and 13 and the screen 12.

  In this regard, in the present embodiment, contact flat surfaces 13b and 13b with the screen 12 are formed at portions of the pair of paste guide members 13 and 13 that are in contact with the screen 12.

  As described above, the contact planes 13b and 13b (FIGS. 4 and 5) are formed in the portions of the pair of paste guide members 13 and 13 that contact the screen 12, so that the pair of paste guide members 13 and 13 have the same structure. It is possible to suppress the generation of a gap between the contact flat surfaces 13b and 13b and the screen 12, and thereby the paste from the contact flat surfaces 13b and 13b and the screen 12 in the pair of paste guide members 13 and 13 to the outside. It is possible to suppress the protrusion of 30.

  In the present embodiment, the pair of paste guide members 13 and 13 can be adjusted and fixed so as to move away from the printing pattern 1 or approach the printing pattern 1, thereby improving convenience. Can be made.

  Specifically, the pair of paste guide members 13, 13 can be applied to various screen plates by being detachable from the screen frame 11.

  Specifically, the through holes (132g, 132g) and (132g, 132g) in the pair of paste guide members 13 and 13 extend along the width direction Y, and the inner end or the outer end (here) Then, since the outer end is an open long hole (notch hole), it can be easily attached and detached simply by temporarily fixing the fixing member 14 (in this case, loosening the male screw). The distance D (see FIG. 1) between the pair of paste guide members 13 and 13 is within the range of the dimension in the width direction Y of the through holes (132g, 132g) and (132g, 132g) that are open long holes. It can be changed easily and freely (optionally).

  Further, a spacer (not shown) such as a washer can be provided between the screen frame 11 and the fixed plate portions (132b, 132b), (132b, 132b) of the pair of paste guide members 13, 13. By doing so, the clearance between the screen frame 11 and the fixing plate portions (132b, 132b), (132b, 132b) of the pair of paste guide members 13, 13 can be changed easily and freely (optionally). And can correspond to the screen frame 11 having an arbitrary height.

  In this embodiment, an example in which screen printing is performed using a single squeegee 20 has been described. However, screen printing may be performed using a plurality of squeegees 20 to 20.

  Further, in the present embodiment, the screen plate 10 including the screen 12, the screen frame 11, and the pair of paste guide members 13 and 13 has been described. However, the screen plate jig including the pair of paste guide members 13 and 13 is described. However, it may be attached to the screen plate 10 including the screen 12 and the screen frame 11. In this example, the pair of paste guide members 13 and 13 and the fixing member 14 constitute a screen plate jig. However, the present invention is not limited thereto, and the pair of paste guide members 13 and 13 themselves may constitute a screen plate jig.

  The present invention is not limited to the embodiment described above, and can be implemented in various other forms. Therefore, such an embodiment is merely an example in all respects and should not be interpreted in a limited manner. The scope of the present invention is shown by the scope of claims, and is not restricted by the text of the specification. Further, all modifications and changes belonging to the equivalent scope of the claims are within the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Print pattern 10 Screen plate 11 Screen frame 11a 1st end surface 11b 2nd end surface 11c Inner wall surface 12 Screen 13 Paste guide member 13a Side wall surface 13b Contact plane 14 Fixing member 15 Side surface 20 Squeegee 30 Paste 111 First frame body 112 Second Frame 131 Contact guide part 131a Guide plate part 131b Contact plate part 132 Fixed support part 132a Connection plate part 132b Fixed plate part d Interval D Interval Wa Width Wb Width Wc Width X Squeegee movement direction Y Width direction Z Height direction

Claims (4)

A screen frame,
A screen attached to the screen frame and having a print pattern;
A screen plate provided with a pair of paste guide members provided on the screen attached to the screen frame with a spacing narrower than the width of the screen across the print pattern,
The paste guide member is a plate-like member formed by bending a metal plate, and is fixed to a surface of the screen frame opposite to the screen attachment side so as to contact the screen, and the printing pattern side And a screen plate having a side wall surface upward with respect to the screen.   2. The screen plate according to claim 1, wherein a contact flat surface with the screen is formed in a portion of the paste guide member that contacts the screen.   3. The screen plate according to claim 1, wherein the paste guide member can be adjusted and fixed so as to move away from the printing pattern or approach the printing pattern. 4. A screen plate jig attached to a screen plate provided with a screen frame and a screen attached to the screen frame and having a printing pattern,
A pair of paste guide members provided on the screen attached to the screen frame with a spacing narrower than the width of the screen across the print pattern;
The paste guide member is a plate-like member formed by bending a metal plate, and is supported by being fixed to a surface of the screen frame opposite to the screen attachment side so as to contact the screen. A jig for a screen plate having a side wall surface on a printed pattern side and upward with respect to the screen.

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