JP6300495B2 - Cylindrical mesh cylinder and method of manufacturing cylindrical mesh cylinder - Google Patents

Description

    The present invention relates to a cylindrical mesh cylinder in which edges of mesh screen sheets are connected to each other to form a cylinder.

  As a prior art, in the connecting method of connecting the edges of the sheet-like member using a connecting member, the sheet-like member having a joint provided with a plurality of holes formed along the edge, and A preparation step of preparing the thin film-like connecting member, a placing step of placing the sheet-like member on a stage in a state in which the edges provided with the joints are butted together, and the butted state An arranging step of arranging the connecting member so as to cover both the joint portions of the sheet-like member, and applying ultrasonic vibration to the connecting member while pressing the connecting member against the stage by a pressing body. A connecting method including a connecting step for connecting the connecting member and the sheet-like member, and a cylindrical mesh cylinder manufactured by the manufacturing method (for example, see Patent Document 1). Cylindrical mesh cylinders, rotary screen printing machine (e.g., see Patent Document 2) are those which can be used as a rotary screen plate incorporated into.

JP 2013-159082 A (refer to the column of claims, the column of detailed description of the invention, and FIGS. 1 to 8) Japanese Unexamined Patent Publication No. 2011-183709 (refer to the claims, detailed description of the invention, and FIGS. 1 to 7)

As described in Patent Document 1, the cylindrical mesh cylinder has a connecting member in a hole formed in a joint provided along an edge of the sheet-like member, that is, a through-hole that is an opening portion of the screen mesh. It is manufactured by applying pressure while applying ultrasonic vibrations with a pressing body and joining them. That is, there are a large number of through holes in the sheet-like end edge covered with the connecting member. The plurality of through holes are preferably formed only in a portion covered with the connecting member, but in actuality, when the connecting member is joined by ultrasonic vibration, the connecting member is slightly displaced. Since there is a case, it is necessary to form the through-hole part slightly wider than the width of the connecting member as a countermeasure. Then, after connection, a through hole exists in a portion not covered with the connection member. When the cylindrical mesh cylinder is used as a rotary screen plate in this state, there arises a problem that various inks and pastes that are printed matter leak from a through hole in a portion not covered with the connecting member.
In addition, if the connecting member and the sheet-like member are not sufficiently joined even in the portion covered with the connecting member, when the cylindrical mesh cylinder is used for a certain period of time, ink or paste leaks from that portion due to capillary action or the like. There was a problem of getting out. This ink and paste leakage means the life of the rotary screen plate. That is, there are cases where sufficient printing durability over a long period of time cannot be obtained only by joining by ultrasonic vibration using the connecting member.
Therefore, an object of the present invention is to provide a cylindrical mesh cylinder excellent in printing durability that solves the above problems.

A first aspect of the present invention is a cylindrical mesh cylinder as described in claim 1, and is as follows.
The edge of the sheet-like member having a joint portion provided with a plurality of holes formed along the edge is brought into contact with each other and joined using ultrasonic vibration while pressing the thin film-like connecting member with a pressing body. Oite in the cylindrical mesh cylinder, and the connecting member of the cylindrical mesh cylinder, a through-hole that is between the coupling member and the photosensitive emulsion unit, and said light-sensitive emulsion unit Tsu covering a resin It is the structure which has a resin layer.

A second invention of the present invention is a cylindrical mesh cylinder as described in claim 2, and is as follows.
The edge of the sheet-like member having a joint portion provided with a plurality of holes formed along the edge is brought into contact with each other and joined using ultrasonic vibration while pressing the thin film-like connecting member with a pressing body. Oite in the cylindrical mesh cylinder, and the connecting member of the squeegee side of the cylindrical mesh cylinder, a through-hole that is between the coupling member and the photosensitive emulsion unit, and said light-sensitive emulsion unit a structure having a resin layers were covered with a resin.

A third invention of the present invention is a cylindrical mesh cylinder as described in claim 3, which is as follows.
The edge of the sheet-like member having a joint portion provided with a plurality of holes formed along the edge is brought into contact with each other and joined using ultrasonic vibration while pressing the thin film-like connecting member with a pressing body. Oite in the cylindrical mesh cylinder, the connecting member of the squeegee side of the printing surface side of the cylindrical mesh cylinder the cylindrical mesh cylinder, a through hole located between the connecting member and the light-sensitive emulsion unit When the is a photosensitive emulsion unit configured to include a resin layers were covered with a resin.

A fourth invention of the present invention is a cylindrical mesh cylinder as described in claim 4, and is as follows.
In addition to the invention according to claim 3, the resin covering the squeegee surface of the cylindrical mesh cylinder includes a through hole portion between the connecting member and the photosensitive emulsion portion so as not to contact the squeegee during rotary screen printing. the is a photosensitive emulsion unit configured to include a resin layers were covered with a resin.

A fifth aspect of the present invention is a cylindrical mesh cylinder as described in claim 5, which is as follows.
In addition to the invention described in any one of claims 1 to 4, the configuration is such that the printing surface side outer ring peripheral portion of the cylindrical mesh cylinder and the plate frame are covered with a tape.

A sixth aspect of the present invention is a method for manufacturing a cylindrical mesh cylinder as described in claim 6, and is as follows.
The edge of the sheet-like member having a joint portion provided with a plurality of holes formed along the edge is brought into contact with each other and joined using ultrasonic vibration while pressing the thin film-like connecting member with a pressing body. After forming the cylindrical shape , a resin layer is formed so as to cover the connecting member, a through hole portion between the connecting member and the photosensitive emulsion portion, and the photosensitive emulsion portion. .

Since the cylindrical mesh cylinder according to the present invention has the configuration as described above, the following effects can be obtained.
(1) By covering the connecting member and its peripheral part with resin, it is possible to cover the connecting member and close the through-hole existing in the peripheral part with resin, so that leakage of ink and paste that occurs during rotary screen printing is suppressed. In addition, the printing durability as a rotary screen plate can be dramatically improved.
(2) In invention of Claim 3, the printing durability as a rotary screen plate can be improved more by covering both sides of a printing surface and a squeegee surface with resin.
(3) In the invention according to claim 4, when the connecting member on both the printing surface and the squeegee surface of the cylindrical mesh cylinder and its peripheral portion are covered with resin, the squeegee surface should not come into contact with the squeegee. Further, by covering only the connecting member and its peripheral part with the resin, it is possible to suppress the peeling of the resin due to the contact of the squeegee at the time of rotary screen printing and to prevent the resin from being mixed into the ink or the paste.
(4) In invention of Claim 5, the distortion which generate | occur | produces from the rotational force of a cylindrical mesh cylinder and the pressure by a squeegee at the time of rotary screen printing can be suppressed, and printing durability can be improved more.

It is a schematic perspective view which shows an example of the cylindrical mesh cylinder formed in the cylindrical shape by joining the edge of a sheet-like part by ultrasonic vibration. It is a schematic perspective view which shows an example of the cylindrical mesh cylinder of this invention. It is the sectional view on the AA line in FIG. 2 which shows the principal part of an example of the cylindrical mesh cylinder of this invention. It is a schematic explanatory drawing which shows the formation method of the resin layer of one Example of the cylindrical mesh cylinder of this invention.

  The edge of the sheet-like member having a joint portion provided with a plurality of holes formed along the edge is brought into contact with each other and joined using ultrasonic vibration while pressing the thin film-like connecting member with a pressing body. Then, after forming into a cylindrical shape, the connecting member and its peripheral portion are covered with resin to form a resin layer.

A method for forming the resin layer 8 on the printing surface 6 or the squeegee surface 7 of the cylindrical mesh cylinder 1 of the present invention will be described with reference to the drawings.
The printing surface 6 of the cylindrical mesh cylinder 1 indicates the outer surface of the cylindrical mesh cylinder 1, that is, the surface that comes into contact with the substrate, and the squeegee surface 7 indicates the inner surface of the cylindrical mesh cylinder 1, that is, The surface which contacts the squeegee 5 is shown.
First, the cylindrical mesh cylinder 1 is formed using the method described in Japanese Patent Application Laid-Open No. 2013-159082 filed last time by the inventors of the present application (see FIG. 1).
Next, masking is performed with a masking tape 3 or the like so as to surround a portion to which the resin 2 is applied. At this time, for example, by masking so that the resin 2 slightly overlaps the photosensitive emulsion portion 9 forming the pattern, the through hole 4 can be reliably closed with the resin 2.
Next, the resin 2 is applied to the portion surrounded by the masking tape 3 using a squeegee 5 or a spatula (see FIG. 4). At this time, it is preferable to form the resin layer 8 by applying the resin 2 as thin as possible so that the leakage of ink and paste can be suppressed.
Next, after the masking tape 3 is peeled off, the resin layer 8 is irradiated with ultraviolet rays or the like to cure the resin 2 to produce the cylindrical mesh cylinder 1 of the present invention.
As shown in FIG. 3, the joining portion 11 at the edge of the sheet-like member of the completed cylindrical mesh cylinder 1 has a shape as if the connecting member is coated with the resin 2. Since the resin 2 is thinly applied, the printing durability, which is the effect of the present invention, can be improved without impairing the effect of Japanese Patent Application Laid-Open No. 2013-159082, which is a previous application that solved the problems of the prior art. It is something that can be done.
Moreover, although the said formation method forms the resin layer 8 in the printing surface 6 of the cylindrical mesh cylinder 1, when forming the resin layer 8 in the squeegee surface 7, the resin layer 8 is formed in the same procedure. .
Furthermore, after the resin layer 8 is formed, the outer peripheral portion of the cylindrical mesh cylinder 1 on the printing surface side is covered with the tape 10 or the like, thereby generating the rotational force of the cylindrical mesh cylinder 1 and the pressure of the squeegee 5 during screen printing. It is possible to suppress distortion and improve printing durability (see FIG. 3).
This tape 10 is used when assembling a cylindrical mesh cylinder to a rotary screen printing machine as disclosed in JP2011-183709, and after assembling the cylindrical mesh cylinder into a ring-shaped plate frame, You may affix so that a mesh mesh cylinder and a plate frame may be covered. By sticking with a tape so as to cover the cylindrical mesh cylinder and the plate frame, in addition to the above effects, leakage of ink and paste from the gap between the cylindrical mesh cylinder and the plate frame can be suppressed.
The resin 2 used in the present invention is not particularly limited, and can be widely used, such as cyanoacrylate-based, epoxy-based, acrylic-based, urethane-based, polyester-based, and polyamide-based adhesives, and combinations thereof. Further, an ultraviolet curable adhesive, an ultraviolet curable resin, or the like can also be used. Among these, it is preferable to use an ultraviolet curable adhesive or an ultraviolet curable resin in consideration of adhesion to the cylindrical mesh cylinder, durability during printing, workability in manufacturing the cylindrical mesh cylinder, and the like.

  The present invention can be used for a technique for joining a sheet-like member into a cylindrical shape.

DESCRIPTION OF SYMBOLS 1 .... Cylindrical mesh cylinder 2 .... Resin 3 .... Masking tape 4 .... Through hole 5 .... Squeegee 6 .... Printing surface 7 .... Squeegee surface 8 ..... Resin layer 9 ... Photosensitive emulsion part 10 ... Tape 11 ... Joint part

Claims (6)

The edge of the sheet-like member having a joint portion provided with a plurality of holes formed along the edge is brought into contact with each other and joined using ultrasonic vibration while pressing the thin film-like connecting member with a pressing body. Oite in the cylindrical mesh cylinder, and the connecting member of the cylindrical mesh cylinder, a through-hole that is between the coupling member and the photosensitive emulsion unit, and said light-sensitive emulsion unit Tsu covering a resin A cylindrical mesh cylinder characterized by having a resin layer. The edge of the sheet-like member having a joint portion provided with a plurality of holes formed along the edge is brought into contact with each other and joined using ultrasonic vibration while pressing the thin film-like connecting member with a pressing body. Oite in the cylindrical mesh cylinder, and the connecting member of the squeegee side of the cylindrical mesh cylinder, a through-hole that is between the coupling member and the photosensitive emulsion unit, and said light-sensitive emulsion unit cylindrical mesh cylinder, characterized in that it comprises a resin layers were covered with a resin. The edge of the sheet-like member having a joint portion provided with a plurality of holes formed along the edge is brought into contact with each other and joined using ultrasonic vibration while pressing the thin film-like connecting member with a pressing body. Oite in the cylindrical mesh cylinder, the connecting member of the squeegee side of the printing surface side of the cylindrical mesh cylinder the cylindrical mesh cylinder, a through hole located between the connecting member and the light-sensitive emulsion unit If, cylindrical mesh cylinder which comprises said resin layer and a light-sensitive emulsion portion was Tsu covered with resin. The resin covering the squeegee surface of the cylindrical mesh cylinder covers the through hole portion between the connecting member and the photosensitive emulsion portion with the resin so as not to contact the squeegee during rotary screen printing and the photosensitive emulsion portion. cylindrical mesh cylinder according to claim 3, characterized in that it comprises a resin layers were. The cylindrical mesh cylinder according to any one of claims 1 to 4, wherein the peripheral portion of the outer ring on the printing surface side of the cylindrical mesh cylinder and the plate frame are covered with a tape. The edge of the sheet-like member having a joint portion provided with a plurality of holes formed along the edge is brought into contact with each other and joined using ultrasonic vibration while pressing the thin film-like connecting member with a pressing body. After forming the cylindrical shape , a resin layer is formed so as to cover the connecting member, a through hole portion between the connecting member and the photosensitive emulsion portion, and the photosensitive emulsion portion. A method for manufacturing a cylindrical mesh cylinder.

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