JP2001347744A - Ink bottle installing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize an ink bottle installing device, in which the pulling-out work of an ink bottle can be easily done with a small pulling-out force. SOLUTION: In an ink pump 2, an ink suction port part 3, a ring housing groove 3a, in which an O-ring 4 is arranged, is provided. In an ink bottle 5, an ink supply port part 7 is provided. By inserting the ink supply port part 7 of the ink bottle 5 in the ink suction port part 3, the O-ring 4 is compression- deformed, resulting in sealing the gap between the ink suction port part 3 and the ink supply port part 7 in an ink bottle installing device under the condition that the width W1 in the inserting-in and pulling-out direction of a bottle of the ring housing groove 3a of the ink suction port part 3 is provided larger than the width W2 at the compression deformation of the O-ring 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an ink bottle mounting device for mounting an ink bottle.

[0002]

2. Description of the Related Art For example, a printing apparatus such as a stencil printing apparatus is provided with an ink bottle mounting device for mounting an ink bottle. This ink bottle mounting device is shown in FIGS.
It will be described based on. As shown in FIGS. 4 to 6, the ink pump 2 in the plate cylinder 1 as the apparatus main body is provided with a synthetic resin ink suction port 3 protruding in a cylindrical shape. Is a rubber O which is an elastic ring
A ring housing groove 3a in which the ring 4 is disposed is provided over the entire circumference.

An ink bottle 5 mounted on the ink suction port 3 of the ink pump 2 has a cylindrical bottle body 6 made of synthetic resin and an ink supply port section 7 protruding from the tip end surface of the bottle body 6. And a tail cap 8 made of a synthetic resin, which closes the rear end release surface of the bottle body 6 and is slidably disposed in the front-rear direction. The ink 10 is filled in an internal space 9 surrounded by the inner surface of the bottle body 6 and the tail cap 8.

In the above configuration, when the ink supply port 7 of the ink bottle 5 is inserted into the ink suction port 3 of the ink pump 2, the O-ring 4 is compressed and deformed on the inner surface of the ink supply port 7, and the compression deformation is performed. The gap between the ink suction port 3 and the ink supply port 7 is sealed by the O-ring 4. When the ink pump 2 sucks, the ink in the ink bottle 5 is sucked toward the ink suction port 3 by this suction force.
When the ink in the ink bottle 5 is sucked, the tail cap 8 slides forward by the amount of the sucked ink to hold the internal space 9 of the ink bottle 5 at the ink volume. This prevents the inside of the ink bottle 5 from being depressurized more than necessary, and allows the ink to be sucked by the suction force from the ink pump 2 until the ink in the ink bottle 5 runs out. Ink bottle 5
When there is no ink inside, the ink supply port 7 of the ink bottle 5 is pulled out from the ink suction port 3 of the ink pump 2 to remove the ink bottle 5, and a new ink bottle 5 is mounted as described above. is there.

[0005]

When the ink supply port 7 of the ink bottle 5 is inserted into the ink suction port 3 of the ink pump 2 as shown in FIG. The water enters the gap between the supply port 7 and the ink suction port 3, and the water component evaporates with the passage of time and gradually hardens (FIG. 7).
The ink 10 cured in is shown in black). Therefore, when the ink bottle 5 is replaced, the ink that has entered the gap between the ink supply port 7 and the ink suction port 3 is usually in a sufficiently cured state. On the other hand, in the conventional configuration, as shown in FIG. 7 and the like, the width of the ring accommodating groove 3a is set to be substantially the same as the diameter of the O-ring 4, and the O-ring 4 is immovable in the ring accommodating groove 3a. .

In such a state, the ink bottle 5
When a pulling force acts in the direction of the arrow in FIG.
The slip between the ink supply port 7 and the O-ring 4 is prevented by the cured ink 10, and a pulling force acts on the O-ring 4 via the cured ink 10. The transmitted pulling force is It is only received on the inner surface of the ring receiving groove 3a. Therefore, the ink bottle 5 cannot be pulled out unless a pulling force greater than the slip resistance of the cured ink 10 is applied, and a very large pulling force is required for pulling out the ink bottle 5, resulting in poor workability.

Accordingly, the present invention has been made to solve the above-mentioned problem, and an object of the present invention is to provide an ink bottle mounting apparatus capable of easily performing an ink bottle pull-out operation with a small pulling force.

[0008]

According to a first aspect of the present invention, there is provided an ink suction port provided on a main body side of the apparatus, an ink supply port which can be inserted into the ink suction port is provided in an ink bottle, and the ink suction port and the ink suction port are provided. A ring accommodating groove in which an elastic ring is disposed in one of the ink supply ports is provided, and when the ink supply port of the ink bottle is inserted into the ink suction port, the elastic ring is compressed and deformed to thereby form the ink suction port. An ink bottle mounting device that seals a gap between the elastic ring and the ink supply port, wherein a width of the ring accommodating groove in a bottle insertion / withdrawal direction is set to be larger than a width of the elastic ring at the time of compression deformation. .

In this ink bottle mounting device, when a pulling force is applied to the ink bottle, the slip between the ink supply port and the elastic ring is prevented by the cured ink, and the elastic ring is applied to the elastic ring via the cured ink. When the pull-out force is transmitted, the pull-out force causes the elastic ring to move in the ring accommodating groove, and the movement of the elastic ring causes the circulation of ink, whereby the cured ink is mixed with the uncured ink and softened. As a result, the slip between the ink supply port and the elastic ring is improved.

According to a second aspect of the present invention, in the ink bottle mounting apparatus according to the first aspect, the ring accommodating groove in which the elastic ring is disposed is provided in the ink suction portion.

In this ink bottle mounting apparatus, the first aspect of the present invention is as follows.
The same operation as that of the invention is obtained.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

1 to 3 show an embodiment of the present invention.
In this embodiment, a case where the present invention is applied to an ink bottle mounting device of a stencil printing device (printing device) is shown. FIG. 1 is a cross-sectional view of an ink suction port of an ink pump, FIG. 2 is a cross-sectional view showing a state in which an ink supply port of an ink bottle is attached to the ink suction port of the ink pump, and FIG. It is sectional drawing of the principal part explaining a behavior.

1 to 3, comparing this embodiment with the conventional example, the same components are denoted by the same reference numerals in the drawings, and the description thereof will be omitted. Only different components will be described. That is, in the conventional example, the width of the ring accommodating groove 3a of the ink suction port 3 in the bottle insertion / withdrawal direction is the O-ring 4.
However, in this embodiment, the width W1 of the ring receiving groove 3a of the ink suction port 3 in the bottle insertion / pulling-out direction is the width of the O-ring 4 which is an elastic ring at the time of compressive deformation. It is set larger than W2. The O-ring 4 is made of, for example, rubber and has a circular cross section. Other configurations are the same as those of the conventional example.

The mounting operation of the ink bottle 5 in the above configuration will be described. The ink supply port 7 of the ink bottle 5 is inserted into the ink suction port 3 of the ink pump 2. Then
The O-ring 4 is compressed and deformed on the inner surface of the ink supply port 7,
The compressed or deformed O-ring 4 allows the ink inlet 3
The gap between the ink supply port 7 and the ink supply port 7 is sealed (see FIG. 2).

Next, the operation of taking out the ink bottle 5 will be described. The ink supply port 7 of the ink bottle 5 is pulled out from the ink suction port 3 of the ink pump 2. Then, as shown by an arrow in FIG. 3, a pull-out force acts on the ink bottle 5, and the slip between the ink supply port 7 and the O-ring 4 is hardened (the hardened ink 10 in FIG. (Shown in black), and the pull-out force is transmitted to the O-ring 4 via the cured ink 10. Then, since the width W1 of the ring accommodating groove 3a is larger than the width W2 of the O-ring 4, the O-ring 4 moves in the ring accommodating groove 3a by the above-described pulling force, as indicated by a virtual line in FIG.
The movement of the O-ring 4 causes the circulation of the ink 10, and the cured ink 10 is mixed with the uncured ink 10 and softened to improve the slip between the ink supply port 7 and the O-ring 4. Therefore, the operation of pulling out the ink bottle 5 can be easily performed with a small pulling force.

Further, since the width W1 of the ring accommodating groove 3a is larger than the width W2 of the O-ring 4, a large space for storing the ink is formed in the ink accommodating groove 3a. Since the ink to be cured is close to the surface contacting the air and the ink inside is very unlikely to be cured, all the ink in this space will not be cured. Accordingly, the O-ring 4 is easily moved by the pull-out force, and the ink is easily circulated by the movement of the O-ring 4, so that the behavior of the O-ring 4 is ensured.

According to the above-described embodiment, the ring accommodation groove 3a in which the O-ring 4 is disposed is provided in the ink suction port 3, but may be provided in the ink supply port 7. Further, although the cross-sectional shape of the O-ring 4 which is an elastic ring is circular, it may be a shape other than a circle such as an ellipse. However, it is preferable that the shape be a shape that is easy to move in the ring accommodation groove 3a, such as a circle. Furthermore, although the case where the ink bottle mounting device is applied to a printing device such as a stencil printing device has been described, it is needless to say that the ink bottle mounting device can be applied to devices other than the printing device.

[0019]

As described above, according to the first aspect of the present invention, the bottle insertion / removal direction of the ring accommodating groove in which the elastic ring is disposed in one of the ink suction port and the ink supply port of the ink bottle. Is set to be larger than the width of the elastic ring at the time of compression deformation, so that when a pulling force acts on the ink bottle, the slip between the ink supply port and the elastic ring is prevented by the cured ink, and the curing is performed. When the pull-out force is transmitted to the elastic ring via the drawn ink, the pull-out force causes the elastic ring to move in the ring accommodating groove, and the movement of the elastic ring causes the circulation of ink to cure the cured ink. The ink bottle is mixed and softened, and the slip between the ink supply port and the elastic ring is improved. It can be to ease.

According to the second aspect of the present invention, in the ink bottle mounting apparatus according to the first aspect, the ring accommodating groove in which the elastic ring is disposed is provided in the ink suction portion. The effect is obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an ink suction port of an ink pump according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing one embodiment of the present invention and showing a state where an ink supply port of an ink bottle is attached to an ink suction port of an ink pump.

FIG. 3 is a cross-sectional view illustrating a main part of the embodiment of the present invention, illustrating the behavior of an O-ring when the ink bottle is pulled out.

FIG. 4 is a cross-sectional view of a conventional ink bottle mounting device.

FIG. 5 is a sectional view of an ink suction port of an ink pump, showing a conventional example.

FIG. 6 is a cross-sectional view showing a conventional example, in which an ink supply port of an ink bottle is attached to an ink suction port of an ink pump.

FIG. 7 shows a conventional example, and is a cross-sectional view of a main part when an ink bottle is pulled out.

[Explanation of symbols]

 Reference Signs List 1 plate cylinder (apparatus main body) 2 ink pump (apparatus main body side) 3 ink suction port 3a ring accommodation groove 4 O-ring (elastic ring) 5 ink bottle 7 ink supply port 10 cured ink

Claims (2)

[Claims] An ink supply port is provided at an ink suction port on an apparatus body side, an ink supply port insertable into the ink suction port is provided at an ink bottle, and an elastic ring is provided at one of the ink suction port and the ink supply port. When the ink supply port of the ink bottle is inserted into the ink suction port, the elastic ring is compressed and deformed to seal the gap between the ink suction port and the ink supply port. An ink bottle mounting device, wherein the width of the ring accommodating groove in the bottle insertion / pulling-out direction is larger than the width of the elastic ring during compression deformation. 2. The ink bottle mounting device according to claim 1, wherein said ring accommodating groove in which said elastic ring is disposed is provided in said ink suction portion.