KR19990041827U - Squeegee for Screen Printing Machine - Google Patents

Abstract

The present invention relates to a squeegee (squegee) for screen printing presses, and the conventional squeegee had to separately produce a squeegee blade to have a straight and curved face according to the shape of the to-be-printed object. Easy edge provides a squeegee that can adhere the screen to the surface of the planar and various types of curved to-be-printed material, which is a squeegee blade 30 at a predetermined interval on the body 32 of the squeegee blade 30. The guide pin 34 is fitted at right angles to the longitudinal direction of the, and the fitting portion (I) is provided with a plurality of long holes 12, 22 in which the guide pin 34 is fitted with a predetermined interval in the vertical direction, long holes The elastic member insertion grooves 14 and 24 are formed between the 12 and 22 parts, and the elastic members 40 such as the compression springs are fitted therein to push the squeegee blades 30 downward.

Description

Squeegee for Screen Printing Machine

The present invention relates to a squeegee for a screen printing machine, and in detail, the squeegee blade can be freely deformed from a straight line to various curved shapes, so that one squeegee blade can be used as a planar to-be-printed surface as well as a curved surface of various shapes. By allowing the screen to adhere closely to the screen, it is possible to print on various types of printed matter without changing the squeegee.

The screen printing machine is applied to the surface of the to-be-printed object by applying ink while the squeegee and ink carshas fixed to the squeegee holder move to the left and right on the screen to which the print ink is applied while the to-be-printed object is fixed or rotatable on the table. It is configured to print, and a double squeeze is a function that evenly pushes the ink applied on the screen, and this squeegee has a very important effect on improving the printability of the printed matter and evenly spreading the ink. Element.

On the other hand, when printing on the surface of a non-planar three-dimensional shape, for example, a simple cylindrical plastic material constituting the body of the door handle or a columnar article having a constant curvature, the object is inserted into the rotating rod and the rotating rod Is rotated on the to-be-printed table and the surface is printed by rotating the to-be-printed object by pushing the squeegee on the screen and then pushing the squeegee on the screen. The conventional squeegee is shown in FIG. As described above, the squeegee blade 3 had to be manufactured and combined between the double-sided brackets 1 and 2 so as to have a blade corresponding to the shape of the outer surface of the to-be-printed object (not shown). If you want to print on the surface of the changed or various types of to-be-printed material, make and replace the squeegee blade that matches the curvature of the surface. Or the entire squeegee had to be replaced, and this required a lot of time for the replacement and setting of the squeegee. The squeegees that were used once were not available for any other type of printout, and there were some disuses.

The present invention has been devised in view of the above-mentioned conventional problems, and an object of the present invention is a screen that can be used for various types of substrates having flat surfaces or different curved surfaces. It is to provide a squeegee for a printing press.

In order to achieve the above object, the present invention is a squeegee of a rubber or urethane material having flexibility in a fitting portion formed between two front and rear plates in which a fixing hole is perforated in an intermediate portion so as to be detachably fixed on a squeegee holder. In the squeegee for the screen printing machine in which the blade is inserted, the squeegee blade is installed to be able to flow up and down between the front and rear plates, and when the squeegee blade receives the compressive force from the bottom of the squeegee blade A plurality of elastic members are installed so that the squeegee blade can be deformed into a free curved shape so that the edge of the squeegee blade forms a straight line in the case of a flat to-be-printed object, and the squeegee blade is the curved surface of the to-be-printed object in the case of a curved object. Can be printed on the surface of various types of substrates by deforming along the screen One will.

1 is an exploded perspective view of a squeegee for a screen printing machine according to the present invention,

2 is a perspective view of the combination of the squeegee for the screen printing machine according to the present invention,

3 is a cross-sectional view taken along the line A-A of FIG.

4 is a cross-sectional view taken along the line B-B of FIG.

5 is an enlarged perspective view of main parts of a screen printing machine equipped with a squeegee of the present invention,

Figure 6a is to print a simple cylindrical object using the squeegee of the present invention

State diagram,

6B is a state of printing of a columnar to-be-printed object having a constant curvature,

6C is a printing state diagram of a columnar to-be-printed object having a curvature different from that of FIG. 6B;

7 shows a configuration of a squeegee for a conventional screen printing machine.

※ Explanation of code for main part of drawing

10: front plate 20: rear plate

12,22: long hole 14,24: elastic member insertion groove

16, 26: coupling hole 18: coupling member

19: fixing hole 30: squeegee blade

32: body 34: guide pin

36: edge 38: corner

40: elastic member I: fitting portion

1 is an exploded perspective view showing a squeegee for a screen printing machine according to the present invention, Figure 2 is a perspective view of the coupling state of the present invention, Figure 3 and Figure 4 is a cross-sectional view taken along line A-A and B-B of Figure 2, respectively. It is shown.

The present invention, as shown in the squeegee blade 30 of a flexible material, for example, rubber or urethane material in the fitting portion (I) formed between a pair of front and rear plates (10, 20) In the inserted squeegee, the guide pin 34 having a short rod-shaped perpendicular to the longitudinal direction of the squeegee blade 30 at regular intervals on the body 32 of the squeegee blade 30 in the horizontal direction. The long holes 12 and 22 to which the guide pin 34 is fitted are vertically inserted into the fitting portion I in the front and rear plates 10 and 20 that support the squeegee blade 30. It is formed in a plurality with a predetermined interval in the direction, the elastic member 40, such as a compression spring is inserted between the long holes 12, 22 at a predetermined interval to elastically formed in the vertical direction to push the squeegee blade 30 downward A plurality of member insertion grooves 14 and 24 are formed.

In the drawings, reference numerals '16' and '26' denote coupling holes for coupling between the front and rear plates 10 and 20, and '18' denotes coupling members such as screws coupled to the coupling holes 16 and 26. And '19' and '29' are fixing holes for fixing the squeegee to the squeegee holder (not shown).

The front and rear plates 10 and 20 are symmetrical in shape, and the bottom thereof is chamfered with the blade tip angle θ of the squeegee blade 30.

Although the number of the guide pins 34 is as much as possible, it is better, but the present invention was able to confirm that the installation of five guide pins 34 at the end of several trials and errors is most preferable in terms of structural and functional, and easy to manufacture. The pins 34 were symmetrically installed at the same distance and the number of left and right sides, so that the squeegee blade 30 was flexibly deformed along the curved shape of the to-be-printed object having various shapes.

The squeegee blade 30 of the present invention is to make a straight line (edge; 36) in the state that no external force is applied, the edge portion 38 of the edge 36 is processed by a curved surface printing and This is to prevent scratches, scratches or excessive force on the screen during curved printing.

In addition, the squeegee blade 30 of the present invention is used to have a sufficient elasticity so that the material can be deformed into a free curved form, but when using a good elastic material, the pressing force on the screen is weakened so that the material Be careful about your choices.

The present invention configured as described above is used as a fixing screw (S) to the squeezer holder (H) of the screen printing machine (P) as shown schematically in FIG. The rotary table U is mounted on the mounting table T and mounted in a rotatable state.

The operator first lowers the squeegee holder H while inserting the to-be-printed object R into the rotary rod U to set the squeegee blade 30 of the squeegee holder H to coincide with the top surface of the to-be-printed object. After that, raise the squeegee back to its original position.

Next, the operator puts a screen M engraved with a predetermined pattern on the screen table V and fixes it, and then pours an appropriate amount of ink onto the screen M and performs a series of printing operations. Since it is the same as the screen printing method of the description thereof will be omitted.

6A to 6C are exemplary views for explaining the usefulness of the squeegee according to the present invention, and FIG. 6A shows a state of printing on a simple cylindrical to-be-printed material R having the same plane along the longitudinal direction. In the squeezer of the invention, since the edge 36 of the squeezer blade 30 is straight, the ink is pushed while pressing the screen M at a uniform pressure, so that the to-be-printed object R rotates at a fixed position. While the surface of the to-be-printed object R is printed along the pattern of the screen M. FIG.

FIG. 6B shows a state in which the columnar to-be-printed material R having a relatively long and smooth curvature is printed, wherein the edge 36 of the squeezer blade 30 is the surface of the to-be-printed material R. FIG. Since the screen M is pressed in a state in which a gentle curvature is formed from the outside to the inside along the shape, the screen M is in close contact with the surface of the to-be-printed object R and printing is performed.

Since the squeezer blade 30 of the present invention is made of a material having flexibility and the plurality of elastic members 40 are disposed at regular intervals on the top, the edge 36 of the squeezer blade 30 is a printed material (R). When the squeezer blade 30 is bent in close contact with the outer surface of the c), the squeezer blade 30 is bent to correspond to the shape of the outer surface of the to-be-printed object R, and the elastic member 40 such as the compression spring installed on the upper portion of the squeezer blade 30 is bent. The flexibility of the blade 30 and the original shape, that is, returning to a straight line and uniform pressure distribution on the surface of the object R are achieved.

In addition, since the edge portion 38 of the squeezer blade 30 is processed with a constant curvature, the squeezer blade 30 is predetermined along the shape of the to-be-printed object R below the screen on the flat screen M. When the curved surface of the screen (M) can be prevented from being damaged by the edge portion 38 of both ends of the squeezer blade (30).

FIG. 6C shows a state of printing on the surface of a short columnar to-be-printed material R having a curvature different from that of FIG. 6B. The squeezer blade of the present invention is freely along the cross-sectional shape of the to-be-printed material R. FIG. Since it is deformed, any print having a variety of cross-sectional shapes as a flat print and a cylindrical print can be used for printing various prints with a single squeezer without replacing the squeezer.

As described above, the present invention is installed so that the squeegee blade can be moved up and down between the front and rear plates by the guide pin and the long hole, and a plurality of elastic members are installed on the squeegee blade. According to the present invention, the squeezer blade is freely deformed, so it is useful to print various types of substrates with one squeezer without replacing the squeezer when printing the surface of flat or curved substrates. .

Claims (2)

In the squeegee for screen printing machine in which the squeegee blade of rubber material or urethane material is inserted in the fitting part formed between a pair of front and rear plates, The squeegee blade 30 is inserted into the guide pin 34 at right angles to the longitudinal direction of the squeegee blade 30 at regular intervals on the upper body 32, the guide pin (I) Long holes 12 and 22 to which the 34 is fitted are formed in a plurality in a vertical direction at regular intervals, and the elastic member 40 to push the squeegee blade 30 downward between the long holes 12 and 22. Squeegee for screen printing machine, characterized in that a plurality of elastic member insertion groove (14) (24) is inserted. The squeegee blade (30) of claim 1, wherein an edge (36) forms a straight line in a state where no external force is applied, and both edges of the edge (36) have a constant curvature (38). Squeegee for screen printing machine, characterized in that it has a.