JP2593194Y2 - Printing machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing machine. More specifically, the present invention relates to a printing machine for exposing a photosensitive material such as a PS plate and an original film in close contact with each other, and printing the contents of the original film onto the photosensitive material.

[0002]

2. Description of the Related Art Conventionally, a photosensitive material and an original plate film are placed on a printing stand provided above a printing machine base, and the photosensitive material and the original plate film are placed on top of each other. 2. Description of the Related Art There is known a printing machine which draws a space formed by a glass plate by communicating with a vacuum source, suctions the original plate and the photosensitive material, and turns on a light source provided above a printing table in this state to perform exposure. (See, for example, Japanese Utility Model Application Laid-Open No. 64-23043).

An outline of a conventional printing machine of this type will be described with reference to FIG. FIG. 4 is a schematic perspective view of a conventional printing machine.
As shown in FIG. 4, the printing machine is mainly a box-shaped machine base 1.
And a frame 3 having a glass plate 2 and a light source 4 for exposure. On the upper surface of the machine base 1, a flexible rubber sheet 5 is stretched to form a printing stand 6, and the printing stand 6 is provided with a suction hole 7 communicating with a vacuum means (not shown). A rubber packing 8 is fixed to the periphery of the printing stand 6. While the glass plate 2 is held by the frame body 3,
The rear edge of the frame 3 is hinged to the machine base 1 with a hinge 9, and the frame 3 is formed to be openable and closable while holding the glass plate 2. At the approximate center of the rear edge of the machine base 1, one end of an L-shaped column 10 is fixed, and the other end of the column 10 holds a light source 4 for exposure.

[0004] The procedure of the printing operation using the printing machine shown in FIG. 4 is as follows. First, the handle 1 provided on the front edge of the frame 3 is used.
1, the frame 3 is opened, and a photosensitive material such as a PS plate and an original film are placed on the printing unit 6 in this order, and then the frame 3 is closed and the printing plate 6 is mounted on the glass plate 2. Cover. Next, after the lock levers 12 provided on both sides of the frame 3 and the rods 13 provided on both sides of the machine base 1 are engaged to fix the frame 3, the suction holes 7 are fixed.
Then, the rubber sheet 8, the photosensitive material, the original film and the glass plate 2 are brought into close contact with each other, and the light source 4 is turned on in this state to print the contents of the original onto the photosensitive material. After the exposure, the vacuum state is released, the lock lever 12 and the rod 13 are disengaged, the frame 3 is opened, and the original film and the baked photosensitive material are removed to complete the printing operation. At this time, only the original film may be removed, a different original film may be superimposed on the photosensitive material, and printing may be performed again.

[0005]

In the above-described printing machine, it is important that the contents of the original plate be accurately printed on the photosensitive material, and high printing accuracy is required.
The finished printing machine assembled at the factory is carefully inspected for printing accuracy and then shipped. However, when transported from a factory to an actual user, the column holding the light source is too high to be in the way, and cannot be transported as it is. Therefore, remove the support, light source, etc., disassemble and carry it, and when it reaches the user, reassemble,
Inspection of the printing accuracy is performed, and there is a problem that extremely laborious work is required. The present invention has been made to solve the above-mentioned disadvantages of the related art, and an object of the present invention is to provide a printing machine that can be easily transported.

[0006]

A printing machine according to the present invention, which has been made to solve the above-mentioned problems, is provided above a machine stand.
A printing table having a photosensitive material and an original film superposed thereon, a glass plate covering an upper surface of the printing table, a frame that is hinged to be freely opened and closed, and disposed above the printing table. In a printing machine having a column for holding a light source, the column is formed to be bendable.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings showing embodiments. FIG. 1 is a schematic perspective view showing an embodiment of the printing machine of the present invention, FIG. 2 (A) is a schematic side view thereof, and FIG. 2 (B) is a schematic side view showing a state in which a support is bent. As shown in FIGS. 1 and 2, the printing machine of the present embodiment basically has substantially the same configuration as a conventional printing machine, and the printing operation and the like are performed substantially in the same manner as the conventional printing machine. . The same members as those of the conventional example shown in FIG. 4 are denoted by the same reference numerals. The constructional difference between the printing machine according to the present invention and the conventional printing machine is that the column 10 holding the light source 4 is formed to be bendable. More specifically, as shown in the figure, a column 10 is formed slightly above the machine base 1 so as to be able to bend forward around a fulcrum 14. As a bending mechanism of the column 10,
Conventional means (for example, pivots, pivots, etc.) can be used. Further, in order to hold the column 10 in the vertical direction, it is preferable to provide a stopper mechanism at or near the fulcrum 14 of the column 10, and a commonly used stopper mechanism can be used.

Since the printing machine according to the present invention has the above-described configuration, it is inspected in a factory or the like, and when transported, the supporting column 10 is bent at the fulcrum 14 so that the state shown in FIG. Can be transported. Therefore, pillar 1
0 is not in the way and can be transported in a compact form, which facilitates the transport operation. Further, when the user arrives at the user, there is an advantage that a complicated assembling operation is not required, and the baking operation can be performed only by erecting the column 10. Further, when the printing machine is stored in a warehouse or the like, there is an advantage that the storage space can be reduced.

The printing machine according to the present invention is not limited to the above-described example, and the design can be changed as appropriate. For example,
The support 10 may be provided with a plurality of bent portions. In this case, by bending the support 10 at a plurality of locations,
Since the height of the column 10 can be reduced, the printing machine can be easily transported. In addition, when the length of the column 10 is insufficient due to the relationship with the width of the machine base 1 in the front-back direction and it is difficult to bend the column 10, the column 10 can be formed to be slidable.

Further, the printing machine of the present invention is provided with a closing mechanism capable of easily closing the frame 3.
As described above, in the conventional printing machine, during the printing operation, the frame 3 is engaged by the engagement of the lock lever 12 and the rod 13.
It is necessary to close the frame 3, the operation is complicated, and there is a demand for a means that can more easily close the frame 3. In the conventional closing mechanism, the lock lever 12 and the rod 1
Since the frame 3 is provided on the side of the frame 3 and the frame 1, there is a problem that the clothes of the worker may be scratched, and there is also a problem in design.

In order to solve such a problem, the printing machine according to the present invention is provided with a closing mechanism which can easily close the frame 3 by using a pin provided on the frame 3 and a snatch lock device. . FIG. 3 is a schematic explanatory view showing an outline of an example of the closing mechanism. More specifically, as shown in FIG. 1, near the front end of the lower surface of the side plate of the frame 3, pins 15 are provided on the left and right via metal fittings. In addition, printing stand 6
Are provided with through holes 16 on the left and right so that the pins 15 can pass when the frame 3 is closed.

As shown in FIG. 3, a so-called snatch lock device (that is, a rotary hook 31 and a stopper 3) which engages with a pin 15 is provided on the left and right inside the machine base 1.
2) is attached. The rotary hook 31 has a concave portion 33 which engages with the pin 15 on one side, and a concave portion 35 which engages with the convex portion 34 of the stopper 32 on the other side. The rotary hook 31 is supported by a spring (not shown). Focusing on
It is urged in the direction of the arrow shown by the dotted line. On the other hand, the stopper 32 is urged by a spring (not shown) around the fulcrum 37 in the direction indicated by the dotted line. The lower part of the stopper 32 is a shaft 3 extending in the left-right direction of the machine base 1.
The shaft 38 is fixed to one end of a crank 39.

The crank 39 is rotatably supported by a fulcrum 40. The other end of the crank 39 is a stop switch 17 of a panel plate. The crank 39 is urged by the urging force of the stopper 32 in the direction in which the stop switch 17 rises, but the stop switch 17 is adjusted by a stopper (not shown) so that the stop switch 17 is substantially flush with the panel plate.

The operation of the closing mechanism having the above configuration will be described. As shown in FIG. 3A, when the frame 3 is closed, the pin 15 passes through the through hole 16 and hits the lower surface of the concave portion 33 of the rotating hook 31, so that the rotating hook 31 is moved in the direction opposite to the biasing direction. , And the recess 33 engages with the pin 15. At the same time, the concave portion 35 of the rotating hook 31 is
2 and the rotating hook 31 is engaged with the stopper 3.
2 [see FIG. 3B].

The release of the closed state of the frame 3 is performed by pressing the stop switch 17 of the panel plate. That is, when the stop switch 17 is pressed, the crank 39 rotates, the shaft 38 pushes the lower portion of the stopper 32, and the stopper 32 rotates in the direction opposite to the biased direction (at this time, the shaft 38 Thus, the other stopper 32 provided in the machine base 1 also rotates). As a result, the engagement between the convex portion 34 of the stopper 32 and the concave portion 35 of the rotary hook 31 is released, and the rotary hook 31
Is rotated in the biased direction, the engagement between the concave portion 33 of the rotary hook 31 and the pin 15 is released, and the frame 3 can be opened (see FIG. 3C).

According to the above-mentioned closing mechanism, the frame 3 can be closed by pressing the frame 3 on the printing stand 6, and the frame 3 can be closed only by pressing the stop switch 17.
Can be released. Therefore, closing and releasing of the frame 3 can be performed extremely easily, and operability can be significantly improved. Further, unlike the conventional example in which projections are provided on the side surfaces of the frame 3 and the machine base 1, there is no such projections, so that the design can be excellent. In addition, the above-mentioned closing mechanism of the frame is not limited to the printing machine of the present invention, but can be widely applied to a printing machine that performs a closing operation of the frame.

[0017]

According to the present invention, the column holding the light source can be bent, so that when the printing machine is transported,
The strut can be easily transported without being in the way, and when it arrives at the user, there is no need for a complicated assembling work.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing an outline of a printing machine according to an embodiment of the present invention.

FIGS. 2A and 2B are schematic views showing an outline of a printing machine according to an embodiment of the present invention, wherein FIG. 2A is a schematic side view, and FIG.

FIGS. 3A and 3B are schematic explanatory views showing an example of a frame closing mechanism, wherein FIG. 3A shows a state where the frame is closed, FIG. 3B shows a state where the frame is closed, and FIG. It is a figure showing the state of.

FIG. 4 is a schematic perspective view showing an outline of a conventional printing machine.

[Explanation of symbols]

 Reference Signs List 1 machine stand 2 glass plate 3 frame 4 light source 5 rubber sheet 6 printing stand 8 packing 10 support 14 fulcrum 15 pin 16 through hole 17 stop switch 31 rotating hook 32 stopper 38 shaft 39 crank

Claims (2)

(57) [Scope of request for utility model registration] 1. A frame which is provided above a machine stand and has a printing table on which a photosensitive material and an original plate film are placed one on top of another, and a glass plate which covers an upper surface of the printing table and which is hinged to be openable and closable. What is claimed is: 1. A printing machine, comprising: a body and a column for holding a light source disposed above a printing table, wherein the column is formed to be bendable. 2. The printing machine according to claim 1, further comprising a frame closing mechanism comprising a pin attached to the frame and a snap lock device engaged with the pin and attached to the machine base.