JP2004001539A - Screen printing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a screen printing device capable of changing printing direction. <P>SOLUTION: A rotationally supported doughnut plate 55 is fixed to supporting columns 51 and 52 fixed on a base 99. A printing part 91 is rotatably mounted on the rotationally supported doughnut plate 55 around C as a center. By rotating the printing part 91, the printing direction Y of a squeegee 96 can be made to be the same direction as the carrying-in and -out direction X of a long work 93 or in the direction being different at 90 degrees. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a screen printing device capable of changing a printing direction.
[0002]
[Prior art]
The moving direction of the squeegee of the conventional screen printing device is fixed with respect to the screen printing device.
[0003]
[Problems to be solved by the invention]
Depending on the pattern shape of the screen plate or the shape of the work, the printing result may be improved by changing the printing direction.
[0004]
An object of the present invention is to provide a screen printing apparatus that can freely change a printing direction.
[0005]
[Means for Solving the Problems]
A screen printing apparatus according to the present invention is a screen printing apparatus that performs screen printing on a workpiece using screen plate making,
The printing direction of screen printing can be changed.
[0006]
The screen printing device,
A base for loading and unloading the work,
A printing unit having a squeegee,
A printing unit mounting mechanism for mounting the printing unit on the base so that the mounting direction of the printing unit can be changed.
[0007]
The printing unit mounting mechanism includes a rotation mechanism that rotatably mounts the printing unit on the base.
[0008]
The rotation mechanism is characterized in that the printing unit is rotatable about a substantially center of a printable area of the printing unit.
[0009]
The printing unit mounting mechanism may include a mounting mechanism that allows the mounting direction of the printing unit to be changed and mounts the printing unit on the base.
[0010]
The screen printing device further comprises:
A screen plate mounting mechanism is provided, wherein the screen plate is attached to the base by changing the mounting direction of the screen plate.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiment 1 FIG.
The screen printing apparatus of FIG. 1 includes a printing unit 91, a printing unit mounting mechanism 98, and a base 99. A screen plate 95 is attached to the printing unit 91 using a plate fixing jig 81 and a plate fixing jig 82. Further, a squeegee 96 and a scraper 97 are attached to the printing unit 91 so as to be movable in the arrow Y direction. The direction of arrow Y is the printing direction. The printing unit 91 is attached to the printing unit attachment mechanism 98 so as to be rotatable about C. The printing unit mounting mechanism 98 has a rotation supporting donut plate 55. The rotation support donut plate 55 is fixed to the support columns 51 and 52 by fixing bolts 61 and 62. The support columns 51 and 52 are fixed to a base 99. The base 99 has a table 94. The long work 93 is carried into and out of the table 94 in the direction of arrow X.
[0012]
FIG. 2 is a plan view of the printing unit mounting mechanism 98.
The rotation supporting donut plate 55 has a ring shape having a space in a printing area. The rotation support donut plate 55 is fixed to the support columns 51 to 54 by fixing bolts 61 to 64. The rotation roller 71 to the rotation roller 74 are attached to the printing unit 91 so as to be in contact with the inner periphery of the rotation support donut plate 55. The printing unit 91 is placed on the rotation supporting donut plate 55, and is rotatable while sliding on the rotation supporting donut plate 55 according to the positioning of the rotation rollers 71 to 74.
[0013]
FIG. 3 is a plan perspective view of the printing unit mounting mechanism 98 and the base 99.
As shown in FIGS. 2 and 3, C is the center of the printing area (the center of the table 94), and the inside of the rotation supporting donut plate 55 is screened while the squeegee 96 and the scraper 97 move in the direction of arrow Y. It has enough space for printing. 2 and 3, the carrying-in / out direction X of the long work 93 and the printing direction Y of the squeegee 96 are the same direction.
[0014]
2 and 3, FIGS. 4 and 5 show a case where the printing unit 91 is slid on the printing unit mounting mechanism 98 and rotated by 90 degrees in the direction of the arrow R.
4 and 5, the carry-in / out direction X of the long work 93 and the print direction Y of the squeegee 96 are changed by 90 degrees.
[0015]
According to the above-described printing unit mounting mechanism 98, the rotation angle can be freely set, and the printing direction can be changed within the range of 0 to 360 degrees.
[0016]
In the above-described example, instead of rotating the printing unit 91, the printing direction may be changed by making the printing unit 91 detachable from the printing unit mounting mechanism 98. For example, a mounting mechanism that lifts the printing unit 91 from the printing unit mounting mechanism 98, rotates the printing unit 91 by 90 degrees, and then mounts the printing unit 91 on the printing unit mounting mechanism 98 again may be provided.
[0017]
Further, the rotating mechanism of the printing unit 91 and the printing unit mounting mechanism 98 is not limited to the illustrated one, but may be a mechanism using an uneven fitting mechanism, a groove mechanism, or a linear guide.
[0018]
Also, the illustration shows a case where the screen plate 95 is also rotated by the rotation of the printing unit 91, but only the screen plate 95 is independent of the printing unit 91, and a screen plate mounting mechanism that allows the mounting direction to be changed. May be provided.
[Brief description of the drawings]
FIG. 1 is a diagram showing a screen printing apparatus having a printing unit 91, a printing unit mounting mechanism 98, and a base 99.
FIG. 2 is a plan view of a printing unit mounting mechanism 98.
FIG. 3 is a perspective plan view of a printing unit mounting mechanism 98 and a base 99.
FIG. 4 is a plan view of a printing unit mounting mechanism 98.
FIG. 5 is a perspective plan view of a printing unit mounting mechanism 98 and a base 99.
[Explanation of symbols]
51, 52, 53, 54 support column, 55 rotation support donut plate, 61, 62, 63, 64 fixing bolt, 71, 72, 73, 74 rotation roller, 81, 82, 83, 84 plate fixing jig, 91 printing Part, 93 long work, 94 table, 95 screen plate making, 96 squeegee, 97 scraper, 98 printing unit mounting mechanism, 99 base.

Claims (6)

In a screen printing apparatus that performs screen printing on a work using a screen plate,
A screen printing apparatus characterized in that the printing direction of screen printing can be changed. The screen printing device,
A base for loading and unloading the work,
A printing unit having a squeegee,
2. The screen printing apparatus according to claim 1, further comprising: a printing unit mounting mechanism configured to change a mounting direction of the printing unit and mount the printing unit on the base. The screen printing apparatus according to claim 2, wherein the printing unit mounting mechanism includes a rotation mechanism that rotatably mounts the printing unit on the base. 4. The screen printing apparatus according to claim 3, wherein the rotating mechanism is configured to rotate the printing unit about a substantially center of a printable area of the printing unit. The screen printing apparatus according to claim 2, wherein the printing unit mounting mechanism includes a mounting mechanism configured to change a mounting direction of the printing unit and mount the printing unit on the base. The screen printing device further comprises:
A screen printing apparatus, comprising: a screen-stencil mounting mechanism for changing the mounting direction of the screen-stencil to attach the screen-stencil to the base.

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