KR101470964B1 - Roll printer capable of alinment of substrate - Google Patents

Abstract

The present invention relates to a roll printer capable of aligning substrates. The roll printer including a stage on which a substrate is placed and a roller installed to be rotated by a support comprises: a camera installed in a roller to capture a landmark marked on a substrate through an opening formed on the roller; an alignment key mounted on the opening, is positioned between the camera and the landmark, and has an alignment mark to compare with the landmark; and a power source mounted on the stage such that the control unit moves the stage in a transverse direction to align the substrate in accordance to the result of the comparison between the landmark and the alignment mark captured by the camera. The camera recognizes the landmark while marking a landmark on a lower substrate being moved, stacking substrates, and forming a pattern on an upper substrate. If an alignment is required, the power source moves the stage to align the substrate, thereby using the roll printer to stack the substrates.

Description

[0001] The present invention relates to a roll printer capable of aligning substrates,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll press, and more particularly, to a roll press capable of aligning a substrate such that lamination can be performed at an accurate position through fine alignment when a roll press is used to laminate electronic substrates.

Roller presses have been used in various fields including newspapers, flyers, flyers and so on until now. In recent years, various functional inks using nanotechnology have been developed, and a roll printing machine is also used in the field of electronic substrate manufacturing. This roll press has advantages such as low production cost, environment friendly, flexibility, large area, mass production, low temperature, simple process, and low cost production of roll sealer. In addition, as disclosed in Korean Patent Registration No. 0724046, a laminated plate is manufactured using a heat press molding apparatus.

However, printing methods using a roll press are limited to those used for manufacturing single-layer products. This is because, when a material or an element (for example, an electronic substrate) is laminated at the time of manufacturing the product, the pattern of the upper electronic substrate must be accurately formed on the pattern of the lower electronic substrate, but it is very difficult to obtain such alignment with the conventional roll printing machine to be. Further, even if the start points of the rolls are matched, the electronic substrate may not be disposed at an accurate position, or an error may occur in the pattern positions of the upper electronic substrate and the lower electronic substrate depending on the type of the electronic substrate. As a result, there is a problem that the roll press is not suitable for the production of an electronic substrate having a laminated structure.

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In order to solve the above-described problems, the present invention has been devised in order to solve the above-mentioned problems, and it is an object of the present invention to provide a roll printing press, in which a detection sensor is mounted on a roller of a roll press, a landmark recognizable by a camera is displayed on a moving lower layer substrate, The present invention provides a roll printing machine capable of aligning a substrate so that a sensor of a roller recognizes a landmark of a lower layer substrate while moving the roller while moving the roller while moving the stage so that the power source moves the stage when necessary, It has its purpose.

According to another aspect of the present invention, there is provided a roll press capable of aligning a substrate according to the present invention, comprising: a stage on which a substrate is placed; and a roller provided so as to be rotatable by a pillar, A camera incorporated in the roller to photograph a landmark displayed on the display; An alignment key mounted on the opening of the opening, the alignment key being positioned between the camera and the landmark and having an alignment mark capable of being contrasted with the landmark; And a power source mounted on the stage for horizontally moving the stage by the control unit to align the substrate according to the result of contrast between the alignment mark and the landmark photographed by the camera.

Here, the camera is characterized in that the camera captures an image of an alignment mark of the alignment key and an image of the landmark superimposed on each other, and transmits the data to the control unit.

In addition, the openings may be formed in the form of long slots connecting cameras built in both sides of the roller, or may be formed one by one in each camera.

In the case where the opening key is formed in the shape of a long slot, the alignment key has a length enough to close the opening, and an alignment mark is formed on both sides so as to overlap with the landmark, And an alignment mark is formed with a size enough to close the opening.

The roller is characterized in that the inside is hollow.

Further, the image forming apparatus further includes a mounting member mounted inside the roller which is inside the opening for accommodating the camera in the roller.

As described above, according to the present invention, a camera is mounted on a rotating roller, a landmark is displayed on a moving lower layer substrate, and a camera recognizes a landmark while forming a pattern on an upper layer substrate in a laminated state When the alignment is required, the driving source moves the stage to align the substrate, so that the roll printing machine can be used in the laminated structure of the substrate.

Further, by using a roll printing machine for manufacturing a laminated substrate, it is possible to obtain effects such as reduction of investment cost, reduction of manufacturing cost, simple process, shortening of work time, and mass productivity.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description, serve to further the understanding of the technical idea of the invention, It should not be interpreted.
1 is a side view schematically showing a roll press capable of substrate alignment according to a preferred embodiment of the present invention.
2 is a front view of Fig.
3 is a side cross-sectional view schematically showing the structure in which the camera is mounted on the roller in Fig.
4 is an alignment key shown in Fig.
Fig. 5 is a view showing a case where the alignment key of Fig. 4 and the landmarks of the lower layer substrate coincide with each other.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the detailed description of known functions and configurations incorporated herein will be omitted when it may unnecessarily obscure the subject matter of the present invention.

<Configuration>

Fig. 1 is a side view schematically showing a roll press capable of aligning a substrate according to a preferred embodiment of the present invention, Fig. 2 is a front view of Fig. 1, Fig. 3 is a schematic view Fig. 4 is an alignment key shown in Fig. 3, and Fig. 5 is a view showing a case where the alignment key of Fig. 4 and the landmark of the lower layer substrate coincide with each other.

1 and 2, a roll press capable of aligning a substrate according to the present invention includes a base 100, a stage 110, a power source 120, a strut 130, a roller 140, 150, a camera 160, a landmark, a control unit, and the like.

First, a stage 110 is installed on the base 100 so as to be movable in one direction, and a roller 140 is installed through a strut 130 so as to be rotatable. Of course, the stage 110 and the roller 140 are installed to print the pattern on the substrate through a separate cable, power source, and control.

The stage 110 is an apparatus for placing the upper and lower substrates stacked on the upper surface and moving the stacked substrates in one direction. The stage 110 is movably installed in one direction so as to pass through the roller 140 as shown in FIG. Thus, the stage 110 is installed to move with the stacked substrates to move the stacked substrates. Here, the stage 110 is installed by the power source 120 so as to enable fine movement in the lateral direction as shown in FIG. 2 in order to align the upper substrate.

The power source 120 is a device for aligning the upper layer substrate by finely moving the stage 110 in the lateral direction. The power source 120 is provided on each of the front and rear sides of the stage 110 as shown in FIGS. The power source 120 may be fixed to the base 100 to move the stage 110 in a lateral direction and may be fixed to the stage 110 to move with the stage 110 with respect to the base 100 May be installed. Of course, when the overlapped state of the alignment mark 151 of the alignment key 150 and the landmark of the lower layer substrate is out of the allowable error range, the power source 120 may move the stage 110 in the lateral direction . Here, 'lateral direction' refers to a direction perpendicular to the direction in which the stage 110 moves, as in FIG.

The pillar 130 is a member for supporting the rotating roller 140. A pair of pillars 130 are fixed to the base 100 in a standing image and mounted on both sides of the roller 140, respectively.

The roller 140 is a member for forming a pattern on a lower layer substrate or an upper layer substrate and is provided with a print pattern attached to the surface of the roller 140 so as to be rotated so as to form a pattern on the upper surface of the substrate moved by the stage 110 Respectively. At this time, the roller 140 is formed in a hollow shape, and an installation member 142 is installed to house the camera 160 on both sides of the roller 140. An opening 141 is formed in a part of the roller 140 provided with the installation member 142 so that the camera 160 can recognize the landmark of the lower layer substrate located outside the roller 140. The opening 141 may be formed in a long slot shape connecting the pair of cameras 160 located on both sides of the roller 140 or may be formed in a shape of a long slot for limiting the position of the camera 160, As shown in FIG.

The alignment key 150 is mounted on the opening 141 of the roller 140 so as to be collinear with the outer surface of the roller 140 as shown in FIG. An alignment mark 151 is formed on the alignment key 150. For example, when the opening 141 is formed in a single shape connecting the camera 160 installed on both sides of the roller 140, the single alignment key 150 is also formed to be close enough to the opening 141 And alignment marks 151 are formed on both sides of the alignment key 150 so as to coincide with the photographing angles of the respective cameras 160. As another example, when the opening 141 is formed at a position where the pair of cameras 160 are installed, two alignment keys 150 having alignment marks 151 are installed one by one in each opening 141 do. In addition, the alignment mark 151 is in the form of four rectangular holes arranged as shown in FIG. 4, and may be in the form of other circular, triangular and polygonal shapes.

The camera 160 is an apparatus for recognizing the alignment mark 151 of the alignment key 150 and the landmark displayed on the lower layer substrate moving together with the stage 110. The camera 160 is mounted on both sides of the roller 140 using the mounting member 142 and is mounted on the land of the lower layer substrate moving through the alignment mark 151 provided on the opening 141 of the roller 140 Photographs the photographed image, and transmits the photographed data to the control unit. Further, the camera 160 is controlled by the control unit so that the landmark can be photographed at the same position every time the roller 140 makes one revolution.

Although the landmarks are not shown in the drawings, it is preferable that the landmarks are displayed on both sides of the lowermost substrate when a plurality of substrates are stacked. Of course, the landmark is displayed at a position overlapping with the alignment mark 151 of the alignment key 150 when the camera 160 is photographed. As shown in FIG. 5, the landmark is formed to have a rectangular size enough to cover the alignment mark 151 when the alignment mark 151 is overlapped with the alignment mark 151. Therefore, the alignment state of the substrate is determined according to the position of the alignment mark 151 in the landmark in the overlapped state of the landmark and the alignment mark 151, and when the alignment state is out of the tolerance range, The substrate 110 moves in the lateral direction to align the substrate. Here, the landmark may be formed in the same shape as the alignment mark 151.

The control unit controls the shooting of the camera 160 in addition to the function of controlling the operation of the stage 110 and the roller 140. The control unit receives the photographed data to determine alignment of the substrate, And to align the substrate by moving the stage 110 in the lateral direction by controlling the driving.

As described above, those skilled in the art will appreciate that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

100: Base
110: stage
120: Power source
130: holding
140: Rollers
141: Open mouth
142: Installation member
150: Sort key
151: alignment mark
160: Camera.

Claims (6)

A roll printing machine comprising a stage (110) on which a substrate is placed, and a roller (140) rotatably provided by a support (130)
A camera 160 incorporated in the roller 140 to photograph a landmark displayed on a lower layer of the substrates stacked through the opening 141 formed in the roller 140;
An alignment key 150 mounted on the opening 141 and positioned between the camera 160 and the landmark and having an alignment mark 151 that can be compared with the landmark; And
The alignment mark 151 photographed by the camera 160 and the alignment mark 151 of the stage 160 are moved to move the stage 110 in the lateral direction by the control unit to align the upper- And a power source (120) mounted on the main body (110).
The method according to claim 1,
Wherein the camera (160) is arranged to take an image when the alignment mark (151) of the alignment key (150) overlaps with the landmark, and to transmit the data to the control unit.
The method according to claim 1,
Wherein the opening 141 is formed in the form of a long slot connecting the cameras 160 built in both sides of the roller 140 or one each of the openings 141 is formed in each of the cameras 160. [ Possible roll presses.
The method of claim 3,
When the opening 141 is formed in a long slot shape, the alignment key 150 has a length enough to close the opening 141, and the alignment mark 150 is formed on both sides so as to overlap with the landmark. Wherein alignment marks (151) are formed with a size sufficient to close the opening (141) when the openings (151) are formed or when the openings (141) are respectively formed, printer.
The method according to claim 1,
Characterized in that the roller (140) is hollow inside.
6. The method according to claim 1 or 5,
Further comprising an installation member (142) mounted inside the roller (140) inside the opening (141) for incorporating the camera (160) in the roller (140) .

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