KR200412043Y1 - Semiautomatic screen printer - Google Patents

Abstract

A semi-automatic screen printing machine is provided to transfer the squeeze and scraper using high pressure air, to replace the squeeze and to adjust the position of the printed board more precisely.

The semi-automatic screen printing machine according to the present invention includes a printing unit including a seating portion on which a printing base material is seated, a scraper and a squeeze positioned above the seating portion, a conveying means for transferring the scraper and squeeze, and high pressure air. It is configured to include a pneumatic supply for operating the conveying means by supplying.

The semi-automatic screen printing machine according to the present invention can perform screen printing more quickly and accurately without the power device that requires a large power, and the manufacturing cost is reduced due to the simple configuration, and the screen printing can be performed on printing materials of various sizes and shapes. There is an advantage that it can.

Screen printing machine, cylinder, squeeze, scraper, semi-automatic

Description

Semi-automatic screen printer

1 is a side view illustrating the operation of a conventional screen printing machine.

2 is a front view of the semi-automatic screen printing machine according to the present invention.

Figure 3 is a perspective view of the opening and closing frame of the semi-automatic screen printing machine according to the present invention opened.

Figure 4 is an exploded perspective view of the seating portion applied to the semi-automatic screen printing machine according to the present invention.

5 is an exploded perspective view showing a coupling structure of a vertical adjustment plate and a rotation angle adjustment plate applied to a semi-automatic screen printing machine according to the present invention.

6 is a cross-sectional view of the printing unit applied to the semi-automatic screen printing machine according to the present invention.

7 is a cross-sectional view of a second embodiment of the squeeze applied to the semi-automatic screen printing machine according to the present invention.

8 to 11 are cross-sectional views sequentially showing the operation of the semi-automatic screen printing machine according to the present invention.

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

100: main body 200: seating portion

300: printing unit 400: horizontal conveying means

500: vertical conveying means 600: pneumatic supply

700: opening and closing frame

The present invention relates to a screen printing machine, and more particularly, to a semi-automatic screen printing machine configured to transfer squeeze and scraper using high pressure air, to replace squeeze, and to adjust the position of the printed board more precisely. will be.

Screen printing is to transfer the wiring pattern on the screen formed by weaving microfibers such as silk, Teflon and polyester nylon to the printed board by printing method, and the remaining part except the part where the wiring pattern is formed on the screen is formed by a mesh. Alternatively, a method of forming a predetermined wiring pattern on a printed board by passing the paste through a screen by pouring a paste and then squeezing the paste using an emulsion after covering the remaining portions except the portion where the wiring pattern is formed with an emulsion. .

Here, the squeeze is an elastic squeeze made of rubber or synthetic resin, etc. to have elasticity, and a metal squeeze made of metal to have a large wear resistance, such squeeze is divided into various types according to the hardness. The squeeze serves to transfer the paste placed on the screen through the screen at a predetermined speed and pressure to the lower printed substrate.

At this time, in order to print a good wiring pattern on the printed board, the squeeze blade should be in contact with the screen at an even pressure. If the pressure at which the squeeze blade is in contact with the screen is not uniform, the paste will be smeared and crushed to print an unexpected shape or color. Changes may occur.

In the screen printing method as described above, the printing speed of printing the wiring pattern on the printed board affects the amount of pushing the paste through the screen. In addition, in order to print a good wiring pattern on a printed board, the angle of the squeeze blade set before printing starts also plays an important role in forming a good wiring pattern on the printed board. The amount of paste pushed out by the squeeze increases, thus reducing the amount of paste in contact with the screen surface.

Hereinafter, a method of screen printing using a conventional screen printing machine will be described in detail with reference to the accompanying drawings.

1 is a side view illustrating the operation of a conventional screen printing machine.

In the conventional screen printing method, the paste 14 is applied onto the printed circuit board 20 by using one squeeze 10 and a scraper 12, and one squeeze 10 is applied as shown in FIG. After tilting at a predetermined angle, the contact area between the squeeze 10 and the screen 13 is adjusted, and the discharge amount of the paste 14 is adjusted to paste the print 14 onto the printed circuit board 20 located on the table 30 of the screen device. ) Is applied.

In more detail, the printing substrate 20 is mounted on the printing machine table 30 and the screen 13 is positioned on the mounted printing substrate 20.

Subsequently, the paste 14 is poured onto the screen 13, and then the scraper 12 is transferred to spread the paste 14 widely, and the squeeze 10 moves from one side of the screen 13 to the other side of the screen 13. Is repeated once or twice to coat the paste 14 on the printed circuit board 20.

At this time, the screen printing machine performs the operation of transferring the scraper 12 to spread the paste 14 and the operation of transferring the squeeze 10 to pass the paste 14 through the screen 13 by manual labor of an operator. It is divided into a manual screen printing machine configured to be built and an automatic screen printing machine configured to use a power source such as a motor.

Passive screen printing machine has the advantages of relatively simple configuration and low production cost and no additional power is required, but the quality of the product is difficult because the contact pressure between the squeeze 10 and the screen 13 is difficult to be kept constant. There is a disadvantage in that the productivity is low. In particular, when the skill of the worker is low, there is a problem that the deterioration of the quality of the product appears remarkably. On the other hand, the automatic screen printing machine has the advantage of significantly increasing the quality and productivity of the product regardless of the operator's skill. However, since it is equipped with a power unit such as a motor, the manufacturing cost is expensive and a lot of power is consumed.

In order to solve all the above problems, a screen printing machine that is made of a simple configuration and can improve product quality and productivity is required.

The present invention has been proposed to solve the above problems, and an object of the present invention is to provide a screen printing machine configured to perform screen printing more quickly and accurately without a power unit requiring large power.

Semi-automatic screen printing machine according to the present invention for achieving the above object,

A seating part on which the print base material is seated;

A printing unit having a scraper and a squeeze positioned above the seating unit;

Conveying means for conveying the scraper and squeeze; And

Pneumatic supply unit for operating the conveying means by supplying a high pressure air;

It is configured to include.

The transfer means,

Vertical transfer means connected to the scraper and the squeeze, respectively, and having at least two vertical transfer cylinders for receiving the high pressure air from the pneumatic supply unit and transferring the scraper and the squeeze in a vertical direction; And

A horizontal conveying means connected to the scraper and the squeeze, the horizontal conveying means receiving a high pressure air from the pneumatic supply unit and a horizontal conveying cylinder for conveying the scraper and the squeeze in a horizontal direction;

It is configured to include.

At this time, the semi-automatic screen printing machine according to the present invention,

A screen mounting bracket is provided for screen coupling and includes a sliding plate which is slidable by the horizontal transfer cylinder and to which the vertical transfer cylinder is coupled, such that the screen is coupled to be positioned between the seating portion and the printing portion. It further includes a frame.

The opening and closing frame is configured to be rotatable by one side is coupled by the hinge portion.

The hinge portion is configured of a height adjustable structure.

The vertical conveying means,

Arranged in the driving direction of the vertical transfer cylinder, one side further comprises two or more vertical guide bars penetrating the sliding plate and coupled to the scraper and the squeegee, respectively.

The horizontal conveying means,

Arranged in the driving direction of the horizontal transfer cylinder, both ends are fixedly coupled to the opening and closing frame, and further comprises one or more horizontal guide bar to which the sliding plate is coupled in a slidable structure.

The horizontal transfer cylinder,

It is preferable to apply the rodless cylinder including a guide table having a length in the conveying direction and a slide block sliding in the longitudinal direction of the guide table.

The printing unit may further include a scraper holder and a squeeze holder in which a vertical scraper coupling groove or a squeeze coupling groove is formed so that the scraper and the squeeze are coupled to each other in a detachable structure.

The scraper is,

A first scraper bracket and a second scraper bracket coupled to each other by a coupling screw and mounted to the scraper holder;

One end includes a scraper plate that is inserted and fixed between the first scraper bracket and the second scraper bracket.

The contact surface between the first scraper bracket and the second scraper bracket is provided to be inclined 20 to 40 degrees from the vertical line.

The squeeze,

A first squeeze bracket and a second squeeze bracket coupled to each other by a coupling screw and mounted to the squeeze holder,

One end is configured to include a squeeze plate that is drawn into the contact surface between the first squeeze bracket and the second squeeze bracket to be fixed.

The contact surface between the first squeeze bracket and the second squeeze bracket is provided to be inclined 20 to 40 degrees from the vertical line.

The squeeze may be applied to an elastic squeeze made of rubber or synthetic resin and the like to have elasticity.

The seating portion,

A plurality of slide grooves are formed to cross each other perpendicular to the surface on which the print base material is seated,

Sliding along the slide groove, the position is fixed by a fastening screw, and is coupled to the printing base material includes a fixing bracket for fixing the mounting position of the printing base material.

The seating portion,

A seating plate on which a printing base material is seated, a horizontal adjusting plate for sliding the seating plate in a horizontal direction, a vertical adjusting plate for sliding the seating plate in a vertical direction, and rotating the seating plate about a vertical axis of rotation The rotation angle adjusting plate for the stack is configured.

The seating plate has a horizontal slide protrusion having a length in the horizontal direction on the bottom surface;

The horizontal adjustment plate may include a horizontal slide groove coupled to the horizontal slide protrusion in a slidable structure on an upper surface thereof, and a vertical slide protrusion having a length in a vertical direction on a bottom thereof;

The vertical adjustment plate, the vertical slide groove which is coupled to the vertical slide protrusion and the slidable structure is formed on the upper surface, the rotation center projection is formed in the center of the bottom surface;

The rotation angle adjusting plate is formed with a rotation center groove into which the rotation center projection is inserted.

The vertical adjustment plate, at least one rotating slide projection spaced apart from the rotation center projection by a predetermined distance is formed on the bottom;

The rotation angle adjusting plate is formed in a portion corresponding to the rotating slide projection has a rotating slide groove having an arc shape with the rotation center groove to the rotation center.

A horizontal adjustment screw fixed to a horizontal position of the horizontal adjustment plate and having an end screwed to a horizontal side of the seating plate;

A vertical adjustment screw having a horizontal position fixed to the vertical adjustment plate and having an end screwed to a lengthwise side of the horizontal adjustment plate; And

A pair of rotation adjusting screws which are respectively provided at both ends of one side of the rotation angle adjusting plate so that the end is in contact with one side of the vertical adjusting plate to rotate the vertical adjusting plate through a rotational movement;

It further includes.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of a semi-automatic screen printing machine according to the present invention.

Figure 2 is a front view of the semi-automatic screen printing machine according to the present invention, Figure 3 is a perspective view of the opening and closing frame of the semi-automatic screen printing machine according to the present invention opened.

As shown in Figures 2 and 3 semi-automatic screen printing machine according to the present invention, the main body 100; A mounting part 200 having a structure in which a base material to be screen printed is mounted and provided on an upper surface of the main body 100; A printing unit 300 having a scraper 310 and a squeeze 320 for spreading and applying the paste and positioned above the seating part 200; Vertical conveying means (400) for vertically conveying the scraper (310) and squeeze (320) individually; Horizontal conveying means (500) for horizontally conveying the scraper (310) and squeeze (320) individually; A pneumatic supply unit 600 for operating the vertical conveying means 400 and the horizontal conveying means 500 by supplying high pressure air; And a sliding plate 720 provided with a screen mounting bracket 730 for screen coupling, which is slidable by the horizontal transfer cylinder 510 and to which the vertical transfer cylinder 410 is coupled. It is configured to include an opening and closing frame 700 is coupled to be positioned between the seating unit 200 and the printing unit 300.

One side of the main body 100 is provided with a switch 110 for controlling the operation of the scraper 310 and the squeeze 320 by controlling the operation of the pneumatic supply unit 600, the remaining components are coupled to the main body 100 . At this time, the main body 100 is preferably configured to have a stable structure so as not to shake during operation for screen printing.

The seating unit 200 is a component for seating and fixing a base material to be silkscreen printed, such as a printed board, and a detailed description thereof will be described below with reference to FIGS. 4 and 5.

Opening and closing frame 700 is a configuration for positioning and fixing the screen on the upper side of the printing base material to be seated on the seating portion 200, the left and right sides of the bottom is provided with a screen mounting bracket of the channel shape so that the screen can be inserted, the scraper ( 310 and the squeeze 320 has a rectangular frame shape with an open center portion to press the upper surface of the screen, the rear end portions of both sides of the hinge portion 710 to facilitate the replacement of the print base material seated on the seating portion 200 It is coupled to the main body 100 in a rotatable structure by). That is, when screen printing is completed on one print base material, the user rotates the opening / closing frame 700 about the hinge part 710 to open and removes the print base material which has been printed, and mounts the new print base material 200. It is possible to more easily make the operation to be mounted on the.

At this time, the hinge portion 710 is provided with a height adjustment screw 712 in the portion that is coupled to the main body 100 so that the height can be adjusted, one end so that the user can lift the opening and closing frame 700 with less force A gas spring 740 coupled to the side 100 and coupled to the side end of the opening / closing frame 700 may be further provided. Since the hinge part 710 and the gas spring 740 applied to the present invention are the same as the hinge and gas spring 740 which are conventionally used in the configuration or operation, detailed description thereof will be omitted.

In addition, the opening and closing frame 700 is opened and closed on the upper surface of the main body 100 at a point corresponding to the opposite side of the hinge portion 710 of the bottom of the opening and closing frame 700, so that the opening and closing frame 700 to maintain a horizontal state A mounting rod 750 supporting the frame 700 is provided. In addition, the bottom of the opening and closing frame 700 at the point corresponding to the mounting rod 750, the mounting groove 702 is formed so that a portion of the upper end of the mounting rod 750 can be inserted.

The screen mounting bracket 730 is provided with a screen fixing screw 732 for fixing the seated screen.

The conveying means comprises a vertical conveying means 400 for conveying the scraper 310 and the squeeze 320 in the vertical direction and a horizontal conveying means 500 for conveying the scraper 310 and the squeeze 320 in the horizontal direction. .

The horizontal conveying means 500 is for conveying the scraper 310 and the squeeze 320 in a horizontal direction, that is, parallel to the upper surface of the screen, and spaced apart from the upper surface of the opening / closing frame 700 by a predetermined interval. It is fixed to the opening and closing frame 700 and comprises a horizontal transfer cylinder 510 for generating a transfer force in the horizontal direction by receiving the high pressure air generated from the pneumatic pump 610 through the air supply line 620 do. The horizontal transfer cylinder 510 is configured to include a guide table 512 having a length in the conveying direction and a slide block 514 coupled to the guide table 512 in a slidable structure, the slide block 514 The sliding plate 720 to which the scraper 310 and the squeeze 320 are coupled is coupled. Therefore, when the slide block 514 is moved along the guide table 512 by the operation of the horizontal transfer cylinder 510, the sliding plate 720 is transferred in the longitudinal direction, that is, the horizontal direction of the guide table 512, The scraper 310 and the squeeze 320 which are coupled to the sliding plate 720 are also conveyed in the driving direction of the horizontal transfer cylinder 510. In the present embodiment, the horizontal transfer cylinder 510 is applied as a rodless cylinder in order to reduce the size of the product and to ensure the accurate and large transfer distance in the horizontal direction. However, the horizontal transfer cylinder 510 is not limited to the rodless cylinder. It can be replaced by several cylinders.

In this case, one or more horizontal guide bars 520 are provided on both sides of the opening / closing frame 700 so that the sliding plates 720 are not twisted to one side, and both ends are equally transported, and the sliding plates 720 are each horizontal guide bars ( 520 and the sliding structure. When the sliding plate 720 is not twisted to one side by the horizontal guide bar 520 and the left and right sides are uniformly transported, the scraper 310 and the squeeze 320 coupled to the sliding plate 720 are also uniformly left and right. There is an advantage that the paste can be applied uniformly since it is transferred.

In addition, the semi-automatic screen printing machine according to the present invention has an advantage that the operation noise is significantly reduced, power consumption can be reduced, and the configuration is simple compared to the conventional screen printing machine using a motor, the manufacturing cost is reduced.

The vertical conveying means 400 is configured to include a vertical conveying cylinder 410 for generating a conveying force in the vertical direction by receiving the high pressure air generated from the pneumatic pump 610 through the air supply line 620, The vertical transfer cylinder 410 is configured to include a body 412 fixed to the sliding plate 720 and a piston 414 configured to draw in and out of the body 412. The piston 414 is positioned to protrude to the lower side of the sliding plate 720, the scraper 310 and the squeeze 320 is connected to the lower end of the piston 414, respectively, to be vertical by the operation of the vertical transfer cylinder 410 Is conveyed in the direction.

In addition, the vertical conveying means 400, the scraper 310 and the squeeze 320 so as to press the screen evenly to the left and right, that is, the left and right sides can be conveyed in the vertical direction while maintaining the same height, the vertical conveying cylinder 410 ) May be further provided with at least two vertical guide bars 420 arranged in a driving direction, that is, in a vertical direction, one side of which penetrates the sliding plate 720 and is coupled to the scraper 310 and the squeeze 320, respectively. .

When the left and right horizontal heights of the scraper 310 and the squeeze 320 are different, the pressure applied to the screen is different for each part, so that the paste may not be evenly applied to the print base material, but the vertical guide bar may be configured as described above. If 420 is provided, there is an advantage that the paste can be evenly applied to each part of the printing base material.

The vertical guide bars 420 connected to the scraper 310 are coupled by one coupling plate 430, and the vertical guide bars 420 connected to the squeeze 320 are coupled by the other coupling plate 430. The scraper 310 and the squeeze 320 can be transported in the vertical direction while maintaining the horizontal state more accurately. In addition, in order to prevent the scraper 310 and the squeeze 320 from moving excessively downward, the coupling plate 430 has a lower end when the scraper 310 and the squeeze 320 are transported to the lower boundary point. A vertical stopper 440 in contact with the upper surface of the sliding plate 720 may be further provided.

4 is an exploded perspective view of a seating unit 200 applied to a semi-automatic screen printing machine according to the present invention, and FIG. 5 is a vertical adjustment plate 230 and a rotation angle adjusting plate 240 applied to the semi-automatic screen printing machine according to the present invention. It is an exploded perspective view showing the coupling structure of.

As shown in FIGS. 4 and 5, the seating unit 200 includes a seating plate 210 on which a printing base material is seated on an upper surface, and a horizontal slide protrusion 213 having a length in a horizontal direction on a bottom surface thereof, and the seating portion 210. Vertical slide protrusion 222 having a horizontal slide groove 221 is coupled to the horizontal slide protrusion 213 and the sliding structure so that the plate 210 is slid in the horizontal direction is formed on the upper surface and has a length in the vertical direction on the bottom surface. The horizontal adjustment plate 220 is formed, and the vertical slide groove 231 coupled to the vertical slide protrusion 222 and the sliding structure so that the seating plate 210 can slide in the vertical direction is formed on the upper surface Vertical centering plate 230, the center of rotation bottom projection 232 is formed in the center of the bottom surface, and the centering plate 232 so that the seating plate 210 can be rotated about the vertical axis of rotation passing through the center projection Insert rotation is the center rotation groove 241 is formed on the upper surface of each adjusting plate 240 is made such that the coupling to the layered structure.

At this time, since the rotation angle adjustment plate 240 is fixed to the main body 100, the user can adjust the left and right positions of the printing base material seated on the upper surface of the seating plate 210 by sliding the seating plate 210 in the left and right directions, By sliding the horizontal adjustment plate 220 in the front-rear direction, the front and rear positions of the printing base material seated on the upper surface of the seating plate 210 can be adjusted. The vertical adjustment plate 230 is rotated to be seated on the upper surface of the seating plate 210. The angle of the print base material can be adjusted.

In order to finely adjust the position of the print base material as described above, the sliding and rotating operation is performed by the horizontal adjustment screw 226, the vertical adjustment screw 236, and the rotation adjustment screw 246.

The horizontal bracket 225 is coupled to the left and right sides of the horizontal adjustment plate 220 by the fastening screw 250, and the horizontal adjustment screw 226 is coupled with the horizontal bracket 225 so that only the rotation is possible in a fixed position. At the same time, the end is screwed to one side of the seating plate 210, that is, the horizontal direction. Therefore, when the user rotates the horizontal adjustment screw 226, the horizontal adjustment screw 226 is only rotated in place, the seating plate 210, the horizontal adjustment screw 226 each time the horizontal adjustment screw 226 Sliding to the left or the right by a pitch. That is, when the horizontal adjustment screw 226 is rotated in the direction in which the seating plate 210 is coupled, the seating plate 210 moves to the left side, and the horizontal adjustment screw 226 in the direction that is separated from the seating plate 210. When rotated, the seating plate 210 is moved to the right. In this embodiment, the horizontal bracket 225 and the horizontal adjustment screw 226 is configured to be located at the left end of the horizontal adjustment plate 220, the coupling position of the horizontal bracket 225 and the horizontal adjustment screw 226 is the horizontal adjustment plate It may be changed to the right end of 220.

Vertical bracket 235 is coupled to the front and rear sides of the vertical adjustment plate 230 by the fastening screw 250, the vertical adjustment screw 236 is coupled to the vertical bracket 235 so that only the rotation in a fixed position At the same time, the end is screwed to one side in the front and rear direction, that is, the longitudinal direction of the horizontal adjustment plate 220. Therefore, when the user rotates the vertical adjustment screw 236, the horizontal adjustment plate is slid in the front and rear direction in the same structure as when the horizontal adjustment screw 226 is rotated. The vertical bracket 235 and the vertical adjustment screw 236 may be located at the rear end of the vertical adjustment plate 230, but the front of the vertical mounting plate as shown in the embodiment shown in Figure 4 so that the user can operate more easily It is preferably located at the side end.

A pair of rotation brackets 245 are coupled to the front and rear ends of the rotation angle adjusting plate 240 by fastening screws 250 on the left and right sides, respectively, and the rotation adjustment screws 246 are connected to the rotation brackets 245 in a screw coupling structure. Combined. At this time, as each rotation adjustment screw 246 rotates in a direction coupled with the rotation bracket 245, the end enters to be in contact with one side of the vertical adjustment plate 230, so that the user can turn the rotation adjustment screw ( 246 is rotated in a direction coupled with the rotating bracket 245, pressure is applied to the left end of the front side of the vertical adjustment plate 230 so that the vertical adjustment plate 230 rotates clockwise around the rotation center projection 232. Done. On the contrary, when the rotation adjusting screw 246 located on the right side is rotated in a direction coupled with the rotation bracket 245, the vertical adjustment plate 230 rotates in the counterclockwise direction.

In addition, the vertical adjustment plate 230 has one or more rotary slide protrusions 233 spaced apart from the rotation center protrusion 232 by a predetermined interval, the rotation angle adjustment plate 240 is a portion corresponding to the rotary slide protrusion 233 A rotating slide groove 242 having an arc shape is formed at the center of rotation of the rotating center groove 241. Accordingly, when the vertical adjustment plate 230 is rotated, the rotary slide protrusion 233 slides along the rotary slide groove 242, so that the vertical slide plate 230 is not feared to be separated from the rotary slide groove 242. ) Can be rotated stably.

In addition, a gauge for measuring a moving distance of the seating plate 210 is provided on the left side or the right side and the front side or the rear side of the seating part 200, respectively. By operating each adjusting screw while measuring the position of the seating plate 210 through a gauge, the user can move the seating plate 210 more precisely in units of 10 μm, thereby accurately matching the position of the printing base material. .

A surface on which the print base material is to be seated, that is, a plurality of slide slots 211 intersected to cross at right angles are formed on the top surface of the mounting plate 210, and the fasteners sliding along the slide slots 211 and penetrating the vertical direction ( Further provided is a fixing bracket 212 fixed in position by a fastening screw 250 coupled to 212a). The slide slot 211 is formed to have a wider bottom surface than the inlet, and the fixing bracket 212 is formed to have a wider bottom than the upper side so that the fixing bracket 212 is not separated upward from the slide slot 211.

The user slides the fixing bracket 212 along the sliding slot to the proper position and fixes the fixing bracket 212 by using the fastening screw 250, and then penetrates the printing base material and is mounted to the mounting hole 212b. By using a mounting screw (not shown), the printing base material can be fixed. Since the semi-automatic screen printing machine according to the present invention is capable of shifting the position of the fixing bracket 212 as described above, it is possible to mount and fix the print base material having a different size or shape on the seating plate 210, and thus the seating plate. Even if the 210 is not replaced, there are advantages in that screen printing can be performed on various types of printing substrates.

6 is a cross-sectional view of a printing unit 300 applied to the semi-automatic screen printing machine according to the present invention, Figure 7 is a cross-sectional view of a second embodiment of the squeeze 320 applied to the semi-automatic screen printing machine according to the present invention.

6, the scraper coupling groove 332 or the squeeze coupling groove 336 having a depth in a vertical direction is formed on the bottom of the printing unit 300 so that the scraper 310 and the squeeze 320 may be detachable. It further includes a scraper holder 331 and the squeeze holder 335 coupled to the structure. In this case, the scraper 310 and the squeeze 320 are fixed to the squeeze holder 335 and the scraper holder 331 by the squeeze fixing screw 337 and the scraper fixing screw 333, respectively.

The scraper 310 is coupled to each other by a coupling screw 318, the first scraper bracket 312 and the second scraper bracket 314 mounted on the scraper holder 331, one end of the first scraper bracket And a scraper plate 316 that is inserted and fixed between the 312 and the second scraper bracket 314. At this time, the scraper plate is preferably inclined so that the top is inclined in the advancing direction (in the left direction in FIG. 6) in order to effectively spread the paste, the contact surface between the first scraper bracket 312 and the second scraper bracket 314 Is formed to be inclined at an angle. Since the scraper 310 is preferably mounted to be inclined at an angle of about 30 degrees from the vertical line, the contact surface between the first scraper bracket 312 and the second scraper bracket 314 is inclined at an angle between 20 and 40 degrees. It is formed to lose.

In addition, the squeeze 320, the first squeeze bracket 322 and the second squeeze bracket 324 is coupled to the mutual contact by the coupling screw 328 and mounted on the squeeze holder 335, one end of the first It comprises a squeeze plate 326 that is drawn into the contact surface between the squeeze bracket 322 and the second squeeze bracket 324 and is fixed, for the same reason as the scraper 310 and the first squeeze bracket 322 The contact surface between the two squeeze brackets 324 is provided to be inclined 20 to 40 degrees from the vertical line.

When the scraper plate 316 and the squeeze plate 326 are worn out by repeating the screen printing several times, since only the scraper plate 316 and the squeeze plate 326 can be replaced, there is an advantage of easy maintenance and repair. In addition, since the coupling positions of the scraper 310 bracket 312 and 314 and the squeeze 320 bracket 322 and 324 are guided by the scraper coupling groove 332 and the squeeze coupling groove 336, the scraper does not need a separate measurement process. The brackets 312 and 314 and the squeeze 320 brackets 322 and 324 can be easily and accurately replaced.

In addition, the screen printing machine according to the present invention may be replaced with an elastic squeeze 320a made of rubber or synthetic resin as shown in FIG. 7 instead of the metal squeeze 320 shown in FIG. 6. That is, the screen printing machine according to the present invention may use the metal squeeze 320 and the elastic squeeze 320 in common.

Conventionally, since a screen printing machine using a metal squeeze 320 and a screen printing machine using an elastic squeeze 320 are divided, respectively, a screen printing machine using a metal squeeze 320 and a screen printing machine using an elastic squeeze 320a are used. Although it should be provided separately, the semi-automatic screen printing machine according to the present invention has the advantage that the utilization of the metal squeeze 320 and the elastic squeeze 320a can be selectively mounted according to the conditions of the screen printing is increased.

8 to 11 are cross-sectional views sequentially showing the operation of the semi-automatic screen printing machine according to the present invention.

In the case of screen printing using a semi-automatic screen printing machine according to the present invention, first, as shown in FIG. 8, the vertical transfer cylinder 410 is driven to transfer the scraper 310 and the squeeze 320 upwards and are seated. After the printing base material 800 and the screen 900 are laminated on the upper surface of the plate 210, a paste P is provided on the upper surface of the screen 900.

When the paste P is provided, the paste P is transferred to the scraper 310 by transferring the scraper 310 downward and the printing unit 300 forward (leftward in FIG. 9) as shown in FIG. 9. After spreading widely, the scraper 310 is transported upwards as shown in FIG. 10 and the squeeze 320 is transported downwards, and as shown in FIG. The paste P is applied to the squeeze 320 by transferring to the right direction).

Thus, the semi-automatic screen printing machine according to the present invention can implement the operation of the scraper 310 and the squeeze 320 while the printing unit 300 is reciprocated once, there is an advantage that the work speed is improved.

The present invention has been described in detail using the preferred embodiments, but the scope of the present invention is not limited to the specific embodiments, and should be interpreted by the appended utility model registration claims. In addition, those of ordinary skill in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

The semi-automatic screen printing machine according to the present invention can perform screen printing more quickly and accurately without the power device that requires a large power, and the manufacturing cost is reduced due to the simple configuration, and the screen printing can be performed on printing materials of various sizes and shapes. There is an advantage that it can.

In addition, the use of the semi-automatic screen printing machine according to the present invention, the noise is significantly reduced compared to the conventional screen printing machine using a motor, the scraper and squeeze can be replaced more easily and accurately, the maintenance is simple, Since the position can be moved precisely, the print quality can be improved.

Claims (19)

A mounting portion 200 on which the print base material is seated; A printing unit (300) having a scraper (310) and a squeeze (320) positioned above the seating portion (200); Conveying means for conveying the scraper 310 and squeeze 320; And Pneumatic supply unit 600 for operating the conveying means by supplying a high pressure air; Screen printing machine comprising a. The method of claim 1, The transfer means, Two or more vertical transfers connected to the scraper 310 and the squeeze 320, respectively, to receive the high pressure air from the pneumatic supply unit 600 to transfer the scraper 310 and the squeeze 320 in the vertical direction. Vertical transfer means 400 having a cylinder 410; And A horizontal transfer cylinder 510 connected to the scraper 310 and the squeeze 320 and receiving the high pressure air from the pneumatic supply unit 600 to transfer the scraper 310 and the squeeze 320 in a horizontal direction. Horizontal transfer means 500 having a; Screen printing machine comprising a. The method of claim 2, A screen mounting bracket 730 is provided for screen coupling and includes a sliding plate 720 that is slidable by the horizontal transfer cylinder 510 and to which the vertical transfer cylinder 410 is coupled, so that the screen is seated. And an opening / closing frame (700) coupled to be positioned between the unit (200) and the printing unit (300). The method of claim 3, The opening and closing frame 700 is one side is coupled by the hinge portion 710, the screen printing machine, characterized in that configured as a rotatable structure. The method of claim 4, wherein The hinge portion 710 is a screen printing machine, characterized in that consisting of a structure capable of adjusting the height. The method of claim 2, The vertical transfer means 400, Arranged in the driving direction of the vertical transfer cylinder 410, one side further comprises two or more vertical guide bar 420 penetrating the sliding plate 720 and coupled to the scraper 310 and the squeegee, respectively Screen printing machine featuring. The method of claim 2, The horizontal conveying means 500, At least one horizontal guide bar 520 is arranged in the driving direction of the horizontal transfer cylinder 510, both ends of which are fixedly coupled to the opening / closing frame 700, and the sliding plate 720 is coupled to the slidable structure. Screen printing machine, characterized in that it further comprises. The method of claim 2, The horizontal transfer cylinder 510, And a rodless cylinder comprising a guide table (512) having a length in a conveying direction and a slide block (514) sliding in the longitudinal direction of the guide table (512). The method of claim 1, The printing unit 300, The scraper holder 331 and the squeeze holder 335 in which the scraper coupling groove 332 or the squeeze coupling groove 336 in the vertical direction are formed so that the scraper 310 and the squeeze 320 are coupled in a detachable structure. Screen printing machine comprising a. The method of claim 9, The scraper 310, A first scraper bracket 312 and a second scraper bracket 314 coupled to each other by a coupling screw 318 and mounted to the scraper holder 331; And a scraper plate (316), one end of which is inserted and fixed between the first scraper bracket (312) and the second scraper bracket (314). The method of claim 10, And the contact surface between the first scraper bracket (312) and the second scraper bracket (314) is inclined 20 to 40 degrees from a vertical line. The method of claim 9, The squeeze 320, A first squeeze bracket 322 and a second squeeze bracket 324 coupled to each other by a coupling screw 328 and mounted to the squeeze holder 335, And a squeeze plate (326), one end of which is inserted into and fixed to the contact surface between the first squeeze bracket (322) and the second squeeze bracket (324). The method of claim 12, And the contact surface between the first squeeze bracket (322) and the second squeeze bracket (324) is inclined 20 to 40 degrees from a vertical line. The method of claim 9, The squeeze 320 is a screen printing machine, characterized in that the elastic squeeze 320 is made of rubber or synthetic resin and the like to have elasticity. The method of claim 1, The seating unit 200, A plurality of slide slots 211 are formed to intersect to be perpendicular to the surface on which the print base material is seated, Sliding along the slide slot 211, the position is fixed by the fastening screw 250, it is coupled to the print base material, characterized in that it comprises a fixing bracket for fixing the seating position of the print base material Screen printing machine. The method of claim 1, The seating unit 200, A seating plate 210 on which a printing base material is seated, a horizontal adjustment plate 220 for sliding the seating plate 210 in a horizontal direction, and a vertical adjustment plate 230 for sliding the seating plate 210 in a vertical direction. And a rotation angle adjusting plate (240) configured to rotate the seating plate (210) about a vertical axis of rotation. The method of claim 16, The seating plate 210, the horizontal slide projection (213) having a length in the horizontal direction on the bottom is formed; The horizontal adjustment plate 220 has a horizontal slide groove 221 coupled to the horizontal slide protrusion 213 in a slidable structure is formed on the upper surface, the vertical slide projection 222 having a length in the vertical direction on the bottom surface is formed Become; The vertical adjustment plate 230, the vertical slide groove 231 is coupled to the vertical slide projection 222 in a slidable structure is formed on the upper surface, the rotating center projection 232 is formed in the bottom center; The rotation angle adjusting plate 240 is a screen printing machine, characterized in that the rotation center groove 241 is formed is inserted into the rotation center projection (232). The method of claim 17, The vertical adjustment plate 230, one or more rotating slide projections 233 spaced apart from the rotation center projection 232 by a predetermined interval is formed on the bottom; The rotation angle adjusting plate 240 is a screen, characterized in that the rotating slide groove 242 having an arc shape with the rotation center groove 241 to the center of rotation in a portion corresponding to the rotation slide projection 233 is formed. printer. The method of claim 17, A horizontal adjustment screw 226 fixed to a horizontal position with the horizontal adjustment plate 220 and having an end screwed to a horizontal side of the seating plate 210; A vertical adjustment screw 236 fixed to a horizontal position with the vertical adjustment plate 230 and having an end screwed to one side of the horizontal adjustment plate 220 in a vertical direction; And One end of the pair of rotation adjusting screws are provided on both sides of one side of the rotation angle adjustment plate 240 so as to contact the one side of the vertical adjustment plate 230 to rotate the vertical adjustment plate 230 through a rotational movement (246); Screen printing machine further comprises.

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