JPS63166538A - Simple printing device - Google Patents

Abstract

PURPOSE:To contrive higher printing quality, by a construction wherein each of slide shafts provided at both ends of a printing base comprises a cam groove for an operating lever, and a squeegee inserted into a guide groove of a guide plate. CONSTITUTION:With an operating lever 2 depressed in the direction of an arrow A, a force for pressing a slide shaft 7 skewly downward is generated in a cam groove 20. On the other hand, a squeegee is permitted only to be moved horizontally by a guide groove 23, so that it is pushed and moved in the direction of an arrow (a) by a horizontal component of the pressing-down force. With the lever 2 is depressed in the direction of an arrow B, the squeegee 4 is pushed and moved in the direction of an arrow (b). Thus, the squeegee can be reciprocated by only repeatedly tilting the lever 2. The squeegee 4 in motion is maintained in an upright pose by the contact of a guide part 25 with a guide part 51, so that an ink-pushing operation is performed smoothly, a force exerted on a screen is maintained in a fixed range throughout a stroke, and the force is made uniform also in the width direction.

Description

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

More specifically, the present invention relates to a printing device that can be 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 moves the screen by holding the squeegee.

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, two skies (5I) and (52) are set (assembled) in one device. This is to push (+) both forward and backward, and one skies (51
) The ink (1) pushed and moved is the screen (53)
This is so that when the squeegee is gathered at the end of the squeegee, the other squeegee (52) is used to push it 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 used more widely industrially and even at home.

[Means for Solving the Problems] The simple printing device of the present invention includes a pair of levers that are curved in an ω-arc shape, are pivotably supported on both sides of the printing table, and have long cam grooves formed therein. (c) a guide plate having a guide groove extending horizontally along both sides of the printing bed; and (c) a sliding shaft having sliding shafts at both ends on both sides of the printing bed. Each has a cam groove of the operating lever and a squeeze inserted into the guide groove of the guide plate.

[Sakukawa] In the present invention, since the cam groove formed in the operating lever is curved, when it pushes the sliding shaft of the skies, a component force in the horizontal direction is generated. Therefore, the sliding shafts at both ends of the skies are guided by guide grooves extending in the horizontal direction, and the skies are moved in the horizontal direction.

Therefore, in the present invention, the skies can be reciprocated simply by tilting the operating lever up and down.

Furthermore, since the pressing force applied by the squeeze on the screen and its balance are also constant, printing quality is improved.

"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)(r
) Line sectional view 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, (2) is an operating lever, (3) is a guide plate, and (4) is a squeegee.

This will be explained below based on FIG.

The printing table (1) is a rectangular table, and its upper surface 01) is formed flat. The area of the upper surface OD can be of various sizes, such as A4, A3, B5, and B4, depending on the size of the printed matter. Three tongue pieces 02) are provided on the top surface 01) 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. A bearing part 04) and a bearing part old are formed on both sides of the left end in the drawing of the printing table (1). In addition, the short edge on the right side of the figure is
A grip portion ae is formed for carrying the printing device by hand.

The operating lever (2) consists of a pair of levers (2a), each of which has its base end axially supported by the bearing portion 04 of the printing table (1). 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 (2) is formed along the curved shape.

This long groove ■ is a cam groove for driving the squeeze (4) ■
It becomes.

The guide plate (3) is a rectangular frame-like member, and its base end is supported by the shaft Oa on the bearing N5 of the printing table (1). Both longitudinal edges (21) of the guide plate (3) stand up at right angles to the flat plate portion, and guide grooves are formed along the longitudinal direction on both edges (21). The guide groove is formed by punching out leaving the upper edge.
The punched portion Q4 is directed inward in the horizontal direction. This portion Q4 serves as a guide portion Q4 for stabilizing the posture of skis (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). Further, a bolt insertion hole is formed in the flat plate portion at the tip.

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 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 part ■ has a vertical side wall (32) on the long edge side and an ink reversal contact plate (32) 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 (3B) 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 (3G) of the screen holding frame (5) into the engagement hole □□□ of the guide plate (3), insert the bolt (37) into the bolt insertion hole (26), and then tighten the nut (38). If it is fastened, it will be 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). The sliding shaft (7) has outwardly projecting portions at both ends of the skies (4). The abdomen (44) is formed by bending a plate member, and its upper edge is wrapped around and fixed to the circular cylinder part (47). In addition, the lower edge (48) is a rubber plate (49).
) is fixed in place. Upper edge (4) of abdomen (44)
5) and the lower edge (4B) is an ink draining hole (5).
0) is formed. This hole (50) is
) is formed over the entire width. The holes (50) may have any shape as long as they allow highly viscous ink to pass through, but in this embodiment, vertically long holes (50) are formed in parallel.

Flat guide portions (51) are attached to both ends of the body portion (43) so as to protrude outward.

As shown in FIG. 1, this guide portion (51) is provided to abut on the upper surface of the guide portion Q4 of the guide plate (3) to control the posture of the skies (4) so that it maintains an upright posture. It is being

As shown in FIG.
) is inserted into the cam groove ■, and the washer (52) and pin (5
3) allows it to be installed so that it does not come out.

Next, the printing method will be explained.

First, in the printing step 162, postcards, printing paper, etc. are fixed on the printing table (1), the screen (6) is inserted into the screen holding frame (5), and the screen holding frame (5) and guide plate (3) are inserted. ) to be fixed.

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

As shown in FIG.
When pushed down in the direction of Since the horizontal component of the above-mentioned push-down force pushes the control lever in the direction of the arrow (field).
When the lever 2) is pushed up in the direction of the arrow (13), the skies (4) is pushed in the direction of the arrow (111) for the same reason.
The skies can be moved back and forth just by repeating the tilting operation. Moreover, the posture of the squeegee (4) during movement is maintained upright by the contact between the guide part 4 and the guide part (51), so that the operation of pushing and moving the ink can be performed without any trouble, and furthermore, the movement of the ink can be carried out without any problem. The pressing force is also within a certain range throughout the stroke, and is also uniform in the width direction.

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

As shown in FIG. 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 (1) is sandwiched between the squeegee (4) and the contact plate (33), and the ink drain hole (50)
) in the direction opposite 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 Fig. 7, if the squeegee (4) is moved back in the direction of the arrow (11), it will be possible to apply ink <1 on the screen (6) and push it as in the same way as when reciprocating. can. 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).

An embodiment of the present invention has been described below, but 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, the squeegee can be caused to reciprocate by simply tilting the operating lever, 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. (1) -1)(T
), FIGS. 5 to 7 are explanatory views of the action of the squeeze in the present invention, and FIGS. 8 to 9 are explanatory views of the conventional device. (Brief explanation of the drawings) (1): Printing table (2): Operation lever (3) Ni guide plate (4): Squeeze (2[): Cam groove (23: Guide groove (50): Hole

Claims (1)

[Scope of Claims] 1 (a) An operation lever consisting of a pair of levers curved in an arc shape, pivotably supported on both sides of the printing table so as to be freely tiltable, and having long groove-shaped cam grooves formed therein; (b) printing; (c) A guide plate with guide grooves extending horizontally along both sides of the printing table; (c) A guide plate having sliding shafts at both ends; A simple printing device comprising a squeegee inserted into a guide groove of a plate.