JPS63166539A - Simple printing device - Google Patents

Abstract

PURPOSE:To obtain a simple printing device capable of being manually operated, by providing an ink drain hole at a belly part of a squeegee reciprocated on a screen by operating an operating lever. CONSTITUTION:With an operating lever 2 depressed in the direction of an arrow A, a squeegee 4 is moved in the direction of an arrow (a), whereby an ink (i) is spread on a screen 6 while a surplus portion of the ink is pushed forward. When the squeegee 4 approaches a stroke end, the ink (i) is clamped between the squeegee 4 and a close contact plate 33, and is pushed out through an ink drain hole 50 reversely to the moving direction of the squeegee 4. When the squeegee reaches the stroke end, the squeegee 4 makes close contact with the plate 33, so that the surplus portion of the ink (i) is almost completely transferred onto the screen 6 on the backward stroke side. When the lever 2 is depressed in the direction of an arrow B and the squeegee 4 is moved backward in the direction of an arrow (b), the ink (i) can be pushed and moved while spreading it on the screen 6. The ink (i) is transferred, at each of the stroke ends. Thus, printing can be performed efficiently.

Description

[Detailed description of the invention] [Industrial application fields] The present invention provides a simple printing device.

More specifically, the present invention relates to a printing device used for screen printing and the like.

[Prior Art] Traditionally, manual printing methods and automatic printing methods have been used in screen printing methods.

In the manual printing method, a person directly holds the squeegee and moves it across the screen. The automatic printing method uses electricity or hydraulics as a driving source to move the squeeze.

In such an automatic printing device, as shown in FIGS. 8 and 9, one device has two skies (51),
52) are assembled as a set. This is because the ink (1) is pushed and moved both during the forward movement and during the backward movement, and the ink (1) pushed and moved by one of the squeezes (51) during the forward movement is collected at the edge of the screen (53). This is to allow the other squeegee (52) to be used to push the squeegee (52) during the next return movement. Therefore, in such an automatic printing apparatus, a mechanism for alternately raising and lowering the two skies (51) and (52) at the stroke end is essential.

[Problems to be Solved by the Invention] In the manual printing method, the pressure applied to the squeegee and the balance of the applied force largely depend on human intuition and experience, resulting in variations in print quality. Another problem is that it is inefficient and unsuitable for mass printing.

The automatic printing device includes a mechanism for electrically or hydraulically driving the squeegee, and further includes a mechanism for driving the squeegee (
The mechanism for raising and lowering the strokes 51) and 52 alternately every time they reach the stroke end is complicated and large-scale, resulting in an expensive device.

Therefore, the current situation has been to rely on individual memberships or to rely on printing at large-scale factories.

In view of the above circumstances, it is an object of the present invention to provide a simple printing device that can be widely used industrially and can also be used at home.

[Means for Solving the Problems] The simple printing device of the present invention includes a squeegee that can be moved back and forth on a screen by reciprocating operation of a control lever, and a hole for draining ink is formed in the abdomen of the squeegee. There is.

[Function] In the present invention, ink can be pushed in one direction by moving the squeeze forward using the operating lever. When the squeegee reaches the end of its stroke, the ink escapes backward through the hole in the squeeze's abdomen, so when the squeegee is moved back, the ink that has come out can be pushed forward.

The above operations are performed at both stroke ends, with each stroke displacing ink toward the front of the squeegee's movement.

Therefore, in the present invention, since printing can be performed with one squeeze, it is possible to provide a simple printing device that can be operated manually.

[Example] Next, the present invention will be explained in detail.

FIG. 1 is a perspective view of a simple printing device according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the same embodiment, FIG. 3 is a front view of the skies, and FIG. ) −(1)
(The sectional view taken along the line 11 and FIGS. 5 to 7 are explanatory diagrams of the action of the squeeze in the present invention.

In FIG. 1, (1) is a printing table, ('2J is an operating lever, (3) is a guide plate, and (4) is a squeegee.

The explanation will be given below based on FIG.

The printing table (1) is a rectangular table, and its upper surface (11) is formed flat. The area of the upper surface 01) may be of various sizes, such as A4, A8, B5, or B4, depending on the size of the printed matter. Three tongue pieces (12) are provided on the upper surface (OI) for determining the position of the printing paper.

Additionally, elastic plates made of rubber or sponge are attached to the edges of both layers to prevent ink from leaking during printing. On both sides of the printing table (1) at the left end in the figure, there are bearing parts (bearing side).
and the bearing part are formed. Further, a grip portion OG for carrying the printing device by hand is formed on the short edge at the right end in the figure.

The operating lever (2) consists of a pair of levers (2a), each of which has its base end attached to the shaft (1) on the bearing side of the printing table (1).
It is pivoted at 7. The two levers (2a) are connected at their tips by a bar (2b), and the bar (2b) also serves as a grip during operation. The lever (2a) is curved in an arc shape, and a long groove is formed along the curved shape. The second long groove (■) is a cam groove (■) for driving the squeeze (4).

The guide plate (3) is a rectangular frame-like member, and its base end is pivotally supported by the shaft 08 on the bearing portion 4 of the printing table (1). Both longitudinal edges (21) of the guide plate (3) stand up at right angles to the flat plate part, and guide grooves are formed along the longitudinal direction on both edges (211). The guide groove is formed by punching out leaving the upper edge.
The punched portion Q4 is directed inward in the horizontal direction. This part serves as a guide part Q4 for stabilizing the posture of skies (4), which will be described later. Two engagement holes 4 are formed in the flat plate portion at the base end of the guide plate (3). In addition, there is a bolt insertion hole (5) in the flat plate part at the tip.
is formed.

A screen holding frame (5) is fixed to the lower surface of the guide plate (3). The screen holding frame (5) is a rectangular frame-like member, and consists of a holding part surface and an ink surrounding part (2). The holding part has a long edge (31) bent into a U-shape so that a screen (6) can be inserted and held inside. The ink surrounding section has a vertically upright side wall (32) on the long edge side and an ink reversal contact plate (3) on the short edge side.
3). The contact plate (33) has an upright wall (34) at the lower part and a curved wall (35) at the upper part.
). The radius of curvature of this curved wall (35) is approximately the same as the radius of curvature of the trunk (43) of the squeeze (4), which will be described later. Two locking claws (38) are formed on the short edge of the base end of the screen holding frame (5). Further, a bolt (37) is fixed to the short edge of the tip.

Insert the locking claw (36) of the screen holding frame (5) into the engagement hole of the guide plate (3), insert the bolt (37) into the bolt insertion hole (2B), and tighten with the nut (38). Then, it is fixed to the lower surface of the guide plate (3).

The screen (6) is a rectangular frame (41) with screen sand (42) pasted on it.

The skies (4) will be explained based on FIGS. 3 and 4.

The skies (4) consist of a torso (43) and an abdomen (44). The body (43) is formed of a cylindrical portion (47), and a sliding shaft (7') is inserted and fixed into a hole in the cylindrical portion (47). Sliding I# (7) has outwardly projecting portions at both ends of the squeegee (4). The belly # (44) is formed by bending a plate member, and the upper edge is a round cylinder part (47).
It is fixed by wrapping it around. Further, the lower edge portion (48) is fixed by sandwiching a rubber plate (49). An ink removal hole (50) is formed between the upper edge (45) and lower edge (48) of the abdomen (44). This hole (5o) is formed over the entire width of the squeegee (4). Hole (5o)
The shape of the hole may be any shape as long as it can pass through highly viscous ink, but in this example, a vertically long hole (
5o) are formed in parallel.

At both ends of the body part (43), flat guide parts (51>) are attached so as to protrude outward.

As shown in Fig. 1, this guide part (5■) comes into contact with the 1-plane of the guide part (241) of the guide plate (3) and controls the posture of the skies (4) so that it maintains an upright posture. It is set up for the purpose of

As shown in FIG.
2) is inserted into the cam groove ■, and the washer (52) and pin (
53), it can be installed so that it does not come out.

Next, the printing method will be explained.

First, in preparation for printing, fix postcards, printing paper, etc. on the printing table (1), insert the screen (6) into the screen holding frame (5), and then insert the screen holding frame (5) and guide plate (3). ) to be fixed.

Next, put ink on the screen (6) and operate the control lever (2) to start printing.

As shown in FIG.
), the cam groove ■ generates a force that pushes the sliding shaft (7) diagonally downward. On the other hand, Skies (4)
is only allowed to move in the water burial direction due to the guide groove of the guide plate (3), so it is pushed and moved in the direction of the arrow (ω) by the horizontal component of the push-down force. When pushed up in direction B), the squeegee (4) is pushed in the direction of arrow (b) for the same reason.In this way, in this embodiment, the squeegee can be moved by simply repeating the tilting operation of the control lever (2). Moreover, since the posture of the squeegee (4) during movement is kept upright by the contact between the guide part 4 and the guide part (51), the operation of pushing and moving the ink can be performed without any hindrance. Furthermore, the force with which the screen (6) is pressed is within a certain range over the entire stroke, and is also uniform in the width direction.

Next, the ink removal operation of the squeeze (4) will be explained.

As shown in Figure 5, as the squeeze (4) moves in the direction of the arrow (ω), the ink (1) is not painted on the screen (6), and the cogonometric part is pushed and moved. .6th
As shown in the figure, when the squeegee (4) reaches near the stroke end, the ink (i) is sandwiched between the squeegee (4) and the contact plate (33), and the ink drain hole (5o
) is pushed out in the opposite direction to the direction of movement. When the stroke end is reached, remove the skies (4) and contact plate (33).
Since they are in close contact with each other, almost all of the cogonal ink (1) is transferred onto the screen (6) on the return side. Therefore, as shown in Figure 7, the skies (
When 4) is moved back in the direction of the arrow (in the middle), the ink (1) can be applied and pushed on the screen (6) in the same way as when reciprocating. In this embodiment, since the ink (1) is transferred as described above at both stroke ends, printing can be carried out efficiently simply by reciprocating the squeegee (4).

Although one embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and various modifications can be made without departing from the spirit of the invention.

[Effects of the Invention] According to the present invention, printing can be performed by simply reciprocating one squeeze, so that a printing device with a simple configuration can be used.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a simple printing device according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the same embodiment, FIG. 3 is a front view of the skies, and FIG. )-(I) line sectional view, FIGS. 5 to 7 are explanatory diagrams of the action of the squeeze in the present invention, and FIGS. 8 to 9 are explanatory diagrams of the conventional device. (Brief explanation of the drawings) (1): Printing table (z8. Operation lever (3) Ni guide plate (4): Skies ■: Cam groove (23: Guide groove (50): Kousai 3 Figure 5. 24 Figure

Claims (1)

[Claims] 1. A simple printing device comprising a squeegee that can be moved back and forth on a screen by reciprocating operation of a control lever, and a hole for draining ink is formed in the abdomen of the squeegee.