KR20080022019A - Automatic screen printer - Google Patents

Abstract

An automatic screen printer is provided to increase productivity of printed materials by performing printing processes through a loading table, an aligning table, a printing table, an exit conveyor, and a plurality of carriers. An automatic screen printer comprises a loading table(101), an aligning table(102), a printing table(103), an exit conveyor(104), and a plurality of carriers(120a,120b). Printed materials are loaded on the loading table. The aligning table is configured to align printed material one by one in a predetermined direction. The printing table loads the printed materials during a printing process. The exit conveyor is configured to convey the printed materials completed. The carriers are installed between the tables to pick up the printed materials by vacuum suction.

Description

Fully Automatic Screen Printing Machine {AUTOMATIC SCREEN PRINTER}

1 and 2 are a front view and a side view of a conventional semi-automatic screen printing machine,

3 is a front view of a fully automatic screen printing machine according to the present invention,

4 is a plan view of a fully automatic screen printing machine according to the present invention;

5 is a side view of a fully automatic screen printing machine according to the present invention;

Figure 6 is a schematic diagram showing a state in which the printing base material is transferred between the tables by the carrier in the fully automatic screen printing machine according to the present invention.

<Explanation of symbols for the main parts of the drawings>

100: printing base material 101: loading table

102: alignment table portion 103: printing table portion

104: discharge conveyor 110: lower body

120a: first carrier device 120b: second carrier device

The present invention relates to a fully automatic screen printing machine, and more particularly, a loading table unit, an alignment table unit, a printing table unit, and an exhaust conveyor unit, which are moving paths of a printing base material (printing object), are sequentially installed for printing. A first carrier and a second carrier are provided to automatically move the print base material between the tables, and the entire printing process including the movement and alignment of the print base material is performed even for thin prints, as well as a printing operation that is automatically performed by the printing execution mechanism. The present invention relates to a fully automatic screen printing machine having advantages such as productivity improvement, labor cost reduction, defect rate reduction, and the like, which are all configured to be automatically performed.

In general, screen printing is provided with a screen having a desired logo or a through-hole formed on the upper portion of a printing object (hereinafter referred to as a print base material). It is a printing technique for printing a pattern.

In general, screens are manufactured by weaving microfibers such as silk, teflon, polyester nylon, and the like, and the wiring patterns on the screen are printed on a printed board by a printing method.

At this time, the remaining portion except the portion where the wiring pattern is formed on the screen is formed by a mesh (mesh) or the remaining portion except the portion where the wiring pattern is formed with an emulsion after pouring the paste and pushing the paste using a squeeze. The paste is passed through the screen to form a predetermined wiring pattern on the printed board.

The printing machine for screen printing includes a frame, a printing table on which a printing base material is placed at a printing performing position on the frame, a printing performing mechanism installed on the upper frame of the printing table so as to be reciprocated left and right, and the printing performing mechanism; It is provided in the frame part between printing base materials, and has the basic structure which consists of a screen which partially passes the paste sprayed.

Looking at the configuration driven by such a press, a means for reciprocating the printing execution mechanism to the left and right is required, and a means for moving the screen closer to the printing base material before printing or returning the screen to its original position after printing is completed. do.

When the operator places the printing base material on the printing table and applies power to the apparatus, the screen is moved close to the printing base material, and then the printing execution mechanism moves in one direction (usually from left to right) and paste Will be pushed.

In this case, a cylinder is applied as a means for moving the printing performing mechanism, and as a means for moving the screen up and down, forming a hinge configuration on one side of the screen to rotate the hinge configuration up and down, such as a rotational power such as a motor The apparatus is applied.

Thereafter, when printing is completed on the printing base material, the cylinder returns the printing performing mechanism to the original position, and at the same time, the rotating power mechanism also returns the screen to the original position, and then the operator takes out the printing base material from the printing table and prints the printing process. It is supposed to complete.

Conventionally, the operator puts one print base material on the print table, aligns the print base material to the guide position on the print table, prints by operating the switch, and then raises the printed print base material from the print table to the dryer. Printing was carried out in a semi-automatic process to complete the process.

1 and 2 are front and side views showing a conventional semi-automatic screen printing machine.

In Fig. 1, reference numeral 1 denotes a printing table, reference numeral 2 denotes a printing execution mechanism having a squeeze 3 and a scraper 4, and in Fig. 2, reference numeral 5 denotes a driving mechanism of the printing execution mechanism 2 up and down. It shows the drive unit for.

Recently, a fully automatic screen printing machine capable of inputting, aligning, and discharging a printing base material having a thick and soft material such as PCB, glass, and acrylic into a printing machine in various ways has been developed and used.

However, as the range of application of screen printing in the electronics industry has been widened, a lot of thin materials have been printed. In the automatic screen printing machine, it is difficult to automatically insert, align, and discharge the thin substrate of a thin material. Depending on the process, the printing work had to be carried out.

In addition, although a printing press applying an alignment method using image recognition technology has been developed, this is very expensive and is not currently used in Korea.

Therefore, the present invention has been invented to solve the above problems, the stacking table portion, the alignment table portion, the printing table portion, and the discharge conveyor portion which is a moving path of the print base material (printing object) for printing work are installed in this order. And a first carrier and a second carrier for automatically moving the print base material between the tables, and the whole printing including the movement and alignment of the print base material, even for thin printed matters, in addition to the print job automatically performed by the print performing mechanism. Since all the processes are configured to be performed automatically, an object of the present invention is to provide a fully automatic screen printing machine having advantages such as productivity improvement, labor cost reduction, and defect rate reduction.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The present invention is provided with a squeeze and a scraper to perform a printing operation automatically under the control of the control unit and its driving means, a screen installed between the printing execution mechanism and the printing substrate to be printed, the operation of the apparatus In the screen printing machine including a control box for controlling a, and a printing table on which the target printing substrate is placed during the printing operation by the printing performing mechanism,

A stacking table unit in which a plurality of print base materials to be printed are loaded and loaded, an alignment table unit for aligning the print base materials loaded one by one from the stacking table in a predetermined direction, and a print base material in an aligned state are loaded to perform a printing operation A printing table portion to be placed while the printing substrate is placed, and a discharge conveyor portion from which the printing base material which has completed printing is taken out from the printing table part is arranged in order to form a movement path of the printing base material, and under the control of the control box, a vacuum suction method. The present invention provides a fully-automatic screen printing machine comprising a carrier device for adsorption and fixing of printing substrates one by one and automatically moving between the respective table parts.

In this case, the carrier device is driven under the control of the control box, respectively, and moves the printing substrate loaded on the loading table portion one by one onto the alignment table portion, and then moves the printing substrate on the printing table portion after the alignment is completed. And a carrier device and a second carrier device for moving the print base material completed printing on the print table part onto the discharge conveyor part.

In addition, each carrier device is configured to move along a guide rail arranged horizontally from the stacking table portion to the discharge conveyor portion long, a plurality of vacuum adsorption is installed to the frame and the lower side of the frame to secure the printing substrate in a vacuum adsorption method A carrier body portion formed of a pad; A drive unit for moving the carrier main body to be driven by the control box; The drive is controlled by the control box, characterized in that it comprises a; air unit for providing a vacuum suction input to each vacuum suction pad.

Particularly, the driving unit includes: a servo motor coupled to a rolling means provided on the rotating shaft to the inside of the guide rail to horizontally move the carrier main body while moving along the guide rail via the rolling means when rotating; And an air cylinder installed vertically to vertically operate between the bracket assembly coupled to the frame and the servomotor to move up and down the carrier body.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

3 is a front view of the fully automatic screen printing machine according to the present invention, FIG. 4 is a plan view of the fully automatic screen printing machine according to the present invention, and FIG. 5 is a side view of the fully automatic screen printing machine according to the present invention.

6 is a schematic view showing a state in which a printing base material is transferred between tables by a carrier device in the fully automatic screen printing machine according to the present invention.

As shown in the drawing, the fully-automatic screen printing machine according to the present invention includes a lower main body 110 in which an air unit 127 including a vacuum pump 127a and the like is embedded, and to the left of the lower main body 110, A stacking table portion 101 on which a print object (hereinafter referred to as a print base material) is placed on a table and placed thereon is disposed, and on the right side, a print base material (printed material) on which printing is completed is described below in the print table portion 103. The discharge conveyor part 104 which is moved by the carrier apparatus 120b and finally raised is arrange | positioned.

The printed base material (printed material), which has been printed, is placed on the discharge conveyor 104 and then moved to a drying conveyor part (not shown) for drying the ink.

In addition, the upper left side of the lower main body 110 is provided with an alignment table 102 in which the print base material loaded on the loading table 101 is moved up and aligned by the first carrier device 120a described later. In the upper portion of the center side of the lower main body 110, a printing table unit 103 is provided on which the printing base material aligned on the alignment table unit 102 is lifted up by the first carrier device 120a.

The table of the print table 103 is a portion where the print base material as the object is placed while screen printing is performed by the print performing mechanism 131.

In this way, in FIG. 3, the loading table 101, the alignment table 102, the printing table 103, and the discharge conveyor 104 are sequentially arranged from the left side, and are stacked on the loading table 101. After the existing print base material is moved to the right side of the alignment table 102 and automatically aligned, and then the automatically aligned print base material is moved to the right side of the print table 103 so that screen printing is progressed and completed, the printed base material is printed on the right side. After being moved to the discharge conveyor 104 of the will be moved back to the drying conveyor for drying.

On the other hand, the fully automatic screen printing machine of the present invention includes an upper body 130 in which the printing performing mechanism 131 and the driving means is installed.

The upper main body 130 is provided with a squeeze 132 and a scraper 133 and the like to drive the print performing mechanism 131 and the respective components of the print performing mechanism 131 to automatically perform a print job under the control of the controller. To control each operation means (not shown), a screen (not shown) installed between the printing execution mechanism 131 and the printing base material, a monitor 137 and an operation unit (not shown), and overall operation of the apparatus. A control box 138 and the like including a control unit for installing the same are provided, and the detailed description thereof will be omitted since these configurations are not significantly different from those of a conventional screen printing machine.

For example, the printing performing mechanism 131 includes a scraper 133 for applying paste on the screen, and a squeeze for pressing the upper surface of the paste on which the paste is applied so that the paste applied on the screen can be deposited on the printing base material. 132, horizontal conveying means (not shown) for conveying the scraper 133 and squeeze 132 in the horizontal direction, vertical conveying means (unsigned) for conveying the scraper 133 and the squeeze 132 in the vertical direction ) And the like are installed in the same manner as a conventional screen printing machine.

Of course, the printing performing mechanism 131 is disposed and disposed so as to be positioned above the printing table 103 on which the printing base material, which is the printing object, is placed during the printing operation.

On the other hand, the automatic screen printing machine of the present invention moves the printing base material 100, which has been stacked on the loading table unit 101, onto the alignment table unit 102 one by one, and after completion of the alignment, the printing table unit for printing. A first carrier device 120a for moving upward, and a second carrier device 120b for moving the print base material 100 having completed printing on the printing table part 103 onto the discharge conveyor 104; (See FIG. 6).

The first carrier device 120a and the second carrier device 120b have the same configuration, and the guide rails horizontally arranged horizontally from the left side loading table portion 101 to the right side discharge conveyor portion 104 ( 121).

Here, the guide rail 121 is horizontally fixed and installed in a state supported by the support member 121a fixed to the lower main body 110 (see FIG. 5).

In addition, the first carrier device 120a and the second carrier device 120b serve to move the print base material between the tables. In particular, the first carrier device 120a and the second carrier device 120b are configured to fix the print base material 100 in a vacuum adsorption method between movements.

That is, each of the carrier devices 12a and 120b is installed under the frame 123 and the frame 123 while moving along the guide rail 121 while fixing the print base material 100 to vacuum-adsorb the print base material. Carrier body portions 122a and 122b comprising a plurality of vacuum adsorption pads 124 fixed in a manner, a driver for moving the carrier body portions 122a and 122b, and a vacuum on the vacuum suction pads 124. It comprises an air unit 127 for providing a suction force (see Figs. 5 and 6).

The drive unit includes a servo motor 125 driven and controlled by a control unit of a control box 138 as a drive source of carrier body movement, and the servo motor 125 includes a bracket assembly 128 and a lift air cylinder 126. The frame 123 is integrally coupled to and supported by).

In addition, a rolling means 129 coupled to the guide rail 121 is installed on the rotation shaft 125a of the servo motor 125. The servo motor 125 rotates and drives the rolling means 129. The guide rails 121 are moved along the guide rails 121 (see FIG. 5).

As a result, when the servo motor 125 is driven, the frame 123 integrally coupled to the servo motor 125 together with the bracket assembly 128, and the vacuum suction pads 124 installed on the frame 123 are provided. It moves along the guide rail 121.

Since the horizontal movement of the carrier body parts 122a and 122b is controlled by the servo motor 125 whose rotational drive is precisely controlled by the controller, the carrier body parts 122a and 122b move along the guide rail 121. ), The position control precision is very high.

In addition, the air cylinder 126 is installed for vertical lifting operation of the carrier body parts 122a and 122b including the frame 123 and the vacuum adsorption pad 124, which is coupled to the frame 123. Vertically installed between the bracket assembly 128 and the servomotor 125 coupled to the guide rail 121 so that the carrier body parts 122a and 122b move vertically according to the operation of the air cylinder 126. It is.

The air cylinder 126 is controlled to be controlled by the control unit of the control box 138, the vertical movement and position of the carrier body portion (122a, 122b) as the operation of the air cylinder 126 is controlled It is supposed to be controlled.

In addition, an air unit 127 including a vacuum pump 127a for providing a vacuum suction input to a plurality of vacuum suction pads 124 installed in the frame 123 is installed in the lower main body 110. The vacuum suction pad 124 is connected to the vacuum pump 127a of the air unit 127 through a hose. When the vacuum suction input is applied to each vacuum suction pad 124 according to the operation of the vacuum pump 127a, the The vacuum adsorption pad 124 adsorbs and fixes the print base material 100.

Like the servomotor 125, the vacuum pump 127a is also precisely controlled by the control unit of the control box 138. When the vacuum suction input is applied during the operation of the vacuum pump 127a, the vacuum suction pad ( 124 is fixed by the adsorption of the print base material 100, the vacuum suction input is removed as the vacuum pump 127a is turned off, so that the adsorption state of the vacuum adsorption pad 124 to the print base material 100 is released. .

In the fully-automatic screen printing machine of the present invention, two carrier devices having the main structure of the frame 123, the vacuum suction pad 124, and the servomotor 125 are installed as described above. The first carrier device 120a is provided. Sequentially transfers the print base material 100 loaded on the loading table unit 101 to the alignment table unit 102 and the print table unit 103, and the second carrier device 120b transfers the print base material on which the printing is completed to the print table. It transfers from the part 103 to the discharge conveyor part 104 (refer FIG. 6).

Each of the first carrier device 120a and the second carrier device 120b is independently driven and controlled while each servo motor 125 is independently controlled by a control unit. Will be transferred.

Hereinafter, the printing process made by the automatic screen printing machine according to the present invention will be described.

First, the carrier body portion 122a (hereinafter referred to as the first carrier body portion) of the first carrier device 120a is used for printing the base material 100 stacked on the mounting table portion 101. After the adsorption is fixed by the lifting, and then lifted, and then moved to the alignment table 102 to gently lay down the print base material on the alignment table 102 (see Figure 6).

Thereafter, the print base material 100 is aligned in a predetermined direction by supplying air through the air nozzle parts of the alignment mechanisms 106 mounted on the alignment table 102, and the print base material 100 is aligned again. The first carrier body 122a is lifted up after being fixed by adsorption.

In the alignment table 102, a plurality of air nozzles 106 are installed on the table 105 to inject air in a predetermined direction and align the printing base material placed thereon in a predetermined direction. It will automatically align thin substrates.

Thereafter, the first carrier body 122a moves to the print table 103 to gently lower the print base material 100 on the print table 103.

When the first carrier device 120a moves the print base material 100 between the tables, the first carrier body part (a) is controlled by the driving of the servomotor 125 because the movement of the first carrier body part 122a is controlled. The positional accuracy of 122a) is very high.

Subsequently, screen printing is performed on the print base material placed on the print table 103 by the operation of the print performing mechanism 131, and when the printing is completed, the carrier body part 122b of the second carrier device 120b (hereafter, , The second carrier body portion) is fixed by lifting and fixing the print base material 100 on the print table 103 through the vacuum suction pad 124.

Here, the vacuum adsorption pad 124 of the second carrier body portion 122b is installed to adsorb the unprinted portion or the edge portion of the print base material 100, and for this purpose, each vacuum adsorption pad 124 is provided. The position is appropriately adjusted and installed in the frame 123.

Thereafter, the second carrier body portion 122b moves over the discharge conveyor 104 and then gently lowers the print base material 100 on the discharge conveyor 104. Thus, the second carrier body 122b moves to the discharge conveyor 104. The printed substrate is then moved to a drying conveyor for drying the ink.

While the second carrier device 120b moves the print base material 100, the first carrier device 120a moves the other print base material 100 from the loading table part 101 to the alignment table part 102. When the alignment is completed, the process of moving back to the print table unit 103 is performed at the same time.

In this way, in the fully automatic screen printing machine according to the present invention, the loading table 101, the alignment table 102, the printing table 103, which serve as a moving path of the printing base material (printing object) for the printing operation, and The discharge conveyor 104 is installed in sequence, and is provided with a first carrier device 120a and a second carrier device 120b for automatically moving the print base material between the tables, and are automatically performed by the printing execution mechanism 131. In addition to the printing operation, the entire printing process including the movement and alignment of the print base material can be automatically performed even for the thin printed matter, thereby improving productivity, reducing labor costs, and reducing defective rates.

As described above, according to the fully automatic screen printing machine according to the present invention, a loading table unit, an alignment table unit, a printing table unit, and an exhaust conveyor unit, which are moving paths of a print base material (printing object), are sequentially installed for a print job. And a first carrier device and a second carrier device for automatically moving the print base material between tables, including printing work performed automatically by a print performing mechanism, including movement and alignment of the print base material for thin printed matter. The entire printing process can be performed automatically, improving productivity by shortening the printing cycle by shortening the printing time for a single print and reducing the number of workers required to operate the printing press. As a result, labor cost can be reduced.

In addition, it is possible to reduce the damage of the printed matter along with the reduction of foreign material contamination by the manual process, thereby reducing the defective rate.

Claims (4)

A squeeze and a scraper are provided to perform a printing operation automatically under the control of the control unit and its driving means, a screen installed between the printing execution mechanism and the print base material as the printing object, a control for controlling the operation of the overall device In the screen printing machine including a box and a printing table on which a printing base material as a target is placed while a printing operation is performed by the printing performing mechanism, A stacking table unit in which a plurality of print base materials to be printed are loaded and loaded, an alignment table unit for aligning the print base materials loaded one by one from the stacking table in a predetermined direction, and a print base material in an aligned state are loaded to perform a printing operation A printing table portion to be placed while the printing substrate is placed, and a discharge conveyor portion from which the printing base material which has completed printing is taken out from the printing table part is arranged in order to form a movement path of the printing base material, and under the control of the control box, a vacuum suction method. And a carrier device which automatically adsorbs and fixes the printing base material one by one to each other between the table parts. The method according to claim 1, The first carrier device, which is driven under the control of the control box, moves the printing substrate loaded on the loading table portion one by one onto the alignment table portion and then moves on the printing table portion after the alignment is completed. And a second carrier device for moving the printing base material completed to be printed on the printing table part onto the discharge conveyor part. The method according to claim 2, Each carrier device, A carrier main body portion configured to move along a guide rail arranged horizontally from the loading table portion to the discharge conveyor portion, the frame and a plurality of vacuum absorption pads installed below the frame to fix the printing base material by a vacuum suction method; ; A drive unit for moving the carrier main body to be driven by the control box; An air unit for controlling driving by the control box and providing a vacuum suction input to each vacuum suction pad; Fully automatic screen printing machine comprising a. The method according to claim 3, The driving unit, A servo motor coupled to the guide rail to the inside of the guide rail and horizontally moving the carrier body while moving along the guide rail via the rolling means during rotation; An air cylinder installed vertically to vertically operate between the bracket assembly coupled to the frame and the servomotor to move up and down the carrier body; Fully automatic screen printing machine comprising a.

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