JP2585316Y2 - Valve device to be attached to writing or coating equipment for liquids - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to inks, liquid cosmetics,
The present invention relates to a valve device which is attached to an instrument for writing or applying a liquid material such as a liquid drug or an adhesive. In addition, this valve device
Is used for writing or application equipment for liquids.
Or, a pipe member connected to the rear end of the coating core member,
Between the two liquid storage tanks.
So that the amount of liquid supplied from the ink to the core can be adjusted.
And the valve stem comes into contact with the pipe member and
The valve stem moves rearward due to the knock operation, and the valve port opens.
It is to be mounted in such a way.

[0002]

2. Description of the Related Art In a conventional valve device of this type, when a valve is opened, the liquid material passes through the valve port according to the opening time .
The amount of liquid passing through the valve
There is the problem of being mixed.

[0003] Therefore, this type of valve device is written or painted.
When attached to a cloth device, the writing or application device
Next, it causes the following problems. That is, open the valve
The amount of liquid passing through the valve port varies depending on the length of the knocking operation time for the core member to be opened or the difference in pressure between the outside air and the container, and the liquid impregnated in the writing portion or the application portion The problem is that the liquid material drips from the writing portion or the coating portion, or the writing surface or the coating surface is blurred.

[0004]

The present invention is to you'll solve] Accordingly, the present invention is, once
Of liquid material passing through the valve opening by the valve opening
And prevent the valve stem from tilting during operation.
Operability as well as low sliding resistance
It is an object to provide a favorable valve device. This allows you to write
Or, when attached to the applicator, the writing section or
To supply an appropriate amount of liquid material to the
It is expected that the written or coated surface will be evenly and uniformly finished
I can .

[0005]

In order to solve the above problems SUMMARY OF THE INVENTION, writing or bar <br/> Lube device attached to the coating device of the liquid material of the present invention is, in a position near the front end in the interior of the outer cylinder 1 The valve seat 2 is provided with a thin-walled flow control cylinder 3 having a space around the rear end and having a tapered narrow inner diameter toward the rear, and a cylinder 4 at the rear of the valve seat 2. In addition, a non-circular cross section is formed, and a deformed cylindrical portion 5 having a diameter of an inscribed circle substantially the same as the inner diameter of the cylinder portion 4 is continuously provided. Is non-circular, the diameter of the inscribed circle is provided slightly larger than the inner diameter of the flow control cylinder 3,
A valve rod 7 is housed inside the outer cylinder 1 so as to be movable in the front-rear direction, and the valve rod 7 is biased forward by a valve spring 8.
A slope 9 is provided at the front end of the valve rod 7 so as to be in close contact with the valve seat 2, and a piston 10 slidable on the inner surface within the range of the cylinder 4 and the deformed cylinder 5 on the rear side. The valve rod 7 has a non-circular cross-section at its rear end, the diameter of the circumscribed circle is slightly smaller than the inner diameter of the flow control cylinder 3 and the diameter of the inscribed circle of the modified through-hole 6, and the valve In the state where the slope portion 9 at the front end of the rod is in close contact with the valve seat 2, a deformed shaft portion 11 whose front end portion is located forward of the flow control cylinder portion 3 is provided. The cross section is circular and the valve stem 7
A cylindrical shaft portion 12 is provided for bringing the side surface of the cylinder portion 4 into close contact with the flow control cylinder portion 3 within a range in which the piston portion 10 slides on the cylinder portion 4 by retreating.

[0006]

With the front end slope 9 of the valve rod 7 in close contact with the valve seat 2 and the valve closed, the internal space 13 of the outer cylinder 1 contains the flow control cylinder 3 and the deformed shaft of the valve rod 7. The liquid material flows in from the gaps 14 generated between the liquid crystals 11. Then, the valve rod 7 is retracted, the front end slope portion 9 is separated from the valve seat 2, and the piston portion 10 is
Is sliding, the side surface of the cylindrical shaft portion 12 of the valve rod 7 comes into close contact with the flow control cylinder portion 3, and the piston portion 10 in the internal space 13 of the outer cylinder 1 and the flow control cylinder portion The part sandwiched by 3 is isolated. When the valve stem 7 further retreats, the piston portion 10 reaches the deformed cylindrical portion 5 and the piston portion 10 and the deformed cylindrical portion 5
A gap 15 is formed between the gaps, and a certain amount of the liquid material existing in the isolated portion in the outer cylinder internal space 13 is filled with the gap 1.
5 and flows out forward, and is discharged as it is through an open valve.

[0007]

An embodiment will be described below with reference to the drawings. First, only the front end and the rear end of the outer cylinder 1 are open, and at the rear end, as shown in FIG. A modified through hole 6 slightly larger than the diameter of the circle is provided. next,
A spring receiver 16 is fixed at a position inside the rear end of the outer cylinder 1 in front of the modified through hole 6. The spring receiver 16 has the flow control cylinder 3 provided around the center hole, and the inner diameter of the flow control cylinder 3 is set slightly smaller than the diameter of the inscribed circle of the irregularly shaped through-hole 6. The spring receiver 16 may be formed as a part of the outer cylinder 1 instead of being a separate part from the outer cylinder 1. Next, an inner cylinder 17 is fixed in a range from the front end to substantially the center inside the outer cylinder 1, and an inner cylinder presser 18 is fixed at a front end position of the outer cylinder 1. Note that the inner cylinder 17 and the inner cylinder presser 18 may be integrally formed without being formed as separate parts. This inner cylinder 1
A valve seat 2 to which a slope portion 9 of a valve rod 7 described later can be closely attached is provided at a position near the front end on the inner surface of the cylinder 7, a cylinder 4 is provided behind the valve seat 2, and FIG. As shown in the figure, a deformed cylindrical portion 5 having a non-circular cross section and the diameter of an inscribed circle substantially equal to the inner diameter of the cylinder portion 4 is continuously provided.
Next, the valve rod 7 housed inside the outer cylinder 1 so as to be movable in the front-rear direction is provided with a slope 9 at the front end, which can be in close contact with the valve seat 2, and a thin skirt shape on the side at a slightly rearward position. And a piston portion 10 slidable on the inner surfaces of the cylinder portion 4 and the deformed cylindrical portion 5, and furthermore, the rear portion thereof has a circular cross section and the side surface portion can be slid in close contact with the flow control cylinder portion 3. A cylindrical shaft portion 12 is provided, and the diameter of the circumscribed circle is non-circular at the rearmost end as shown in FIG. A modified shaft portion 11 slightly smaller than the diameter is provided. The valve stem 7 is urged forward by a valve spring 8 interposed between the rear end of the piston portion 10 and the spring receiver 16 to normally open the slope portion 9 at the front end as shown in FIG. It maintains the state of closing the valve port in close contact to the seat 2. In this state, the length of the deformed shaft portion 11 is set such that the front end of the deformed shaft portion 11 of the valve stem 7 is located slightly forward of the flow control cylinder portion 3. In addition, this valve device
Is attached to the writing or application equipment as follows:
You. That is, this valve device is used for writing or painting a liquid material.
After the writing or application core member for the cloth appliance
A pipe member connected to the end and a liquid material storage tank
And the outer cylinder 1 is located at the front end of the liquid storage tank.
The liquid material is fitted into the outer cylinder 1 through the rear end shaped through hole 6 of the outer cylinder 1.
In order to flow into the internal space 13 of the outer cylinder 1 and the valve rod 7
Comes into contact with the pipe member and knocks on the core member.
Install so that the valve stem 7 moves backward and the valve port opens.
Be killed.

[0008] The valve device is normally the valve opening to maintain the state of FIG. 1 has closed, occurs between the restricted flow tube portion 3 and the profiled shaft portion 11 in the inner space 13 of the outer cylinder 1 From gap 14
The liquid material flows in and becomes full. Next, push the valve stem 7
When the piston is retracted by pressing , the slope portion 9 separates from the valve seat 2 and the piston portion 10 slides on the cylinder portion 4 to reach the rear end portion, and slightly before reaching the rear end, as shown in FIG. The front end of the portion 11 exceeds the flow control cylinder 3, and the side surface of the cylindrical shaft portion 12 comes into close contact with the flow control cylinder 3. Therefore, in this state, the inflow and outflow of the liquid material in the portion of the inner space 13 of the outer cylinder 1 sandwiched between the piston portion 10 and the flow control cylinder portion 3 are regulated, and the liquid material is isolated by a substantially constant amount. When the valve rod 7 is further retracted, the piston portion 10 reaches the deformed cylindrical portion 5 as shown in FIG. A quantity of liquid will flow forward and pass through the valve. Thereafter, when the pressing force on the valve rod 7 is released, the state returns to the state of FIG.

[0009]

The present invention is as described above. When the valve rod 7 is retracted , a substantially constant amount of liquid is separated between the piston portion 10 and the flow control cylinder portion 3 in the internal space 13 of the outer cylinder 1. Can do
In effect there being able to pass the isolated substantially constant amount of liquid material only valve port was when the valve port is opened
You. Therefore, the valve device of the present invention can be used for writing or coating.
By attaching to the instrument, the writing or coating instrument
Adjust the amount of liquid supplied to the writing or coating section
Can be adjusted so that the writing surface or coating surface is uneven.
It can be expected that it will be finished uniformly .

In the conventional valve device of this type, the piston portion 10 is not provided with the cylinder portion 4 because the portion like the modified cylindrical portion 5 of the present invention is not provided continuously behind the cylinder portion 4. When passing through, the valve stem 7 becomes free in the radial direction, and the valve stem 7 is inclined. Due to the inclination of the valve stem 7, there is a possibility that a gap is formed in the rear flow control cylinder 3 and leakage of the liquid material occurs. In order to prevent this, it is necessary to increase the contact pressure of the flow control cylinder portion 3 with respect to the valve rod 7, so that the operating resistance of the valve rod 7 increases and the valve spring 8 must also be strengthened. There was a problem of getting worse. However, according to the present invention, the deformed cylindrical portion 5 is provided particularly behind the cylinder portion 4 so that even if the piston portion 10 of the valve stem 7 moves rearward of the cylinder portion 4, the piston portion 10 moves in the radial direction by the deformed cylindrical portion 5. And the deformed through-holes 6 are provided at the rear end of the outer cylinder 1, so that the front and rear of the valve stem 7 can be supported by these, so that the valve stem 7 is not tilted and the central part is not inclined. This has the effect of being reliably held. In addition, the control cylinder 3
Has a space around it and presents a thin-walled cylindrical shape having a tapered narrow inner diameter toward the rear, so that the sliding resistance against the valve rod 7 is reduced and the force of the valve spring 8 can be reduced. In addition, even if the valve stem 7 is slightly inclined, it can be elastically deformed and can flexibly follow, so that there is an effect that the usability is improved.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a state in which a valve is closed.

FIG. 2 is a cross-sectional view taken along line AA of FIG.

FIG. 3 is a transverse sectional view taken along line BB of FIG. 1;

FIG. 4 is a longitudinal sectional view showing a state where a liquid material is isolated inside the valve.

FIG. 5 is a longitudinal sectional view showing a state in which a liquid material isolated inside the valve is discharged forward.

6 is a transverse sectional view taken along line CC of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Outer cylinder 2 Valve seat 3 Flow control cylinder part 4 Cylinder part 5 Deformed cylinder part 6 Deformed through hole part 7 Valve rod 8 Valve spring 9 Slope part 10 Piston part 11 Deformed shaft part 12 Cylindrical shaft part 13 Internal space 14 Gap 15 Gap 16 Spring receiver 17 Inner cylinder 18 Inner cylinder holder

Claims (1)

(57) [Scope of request for utility model registration] 1. A thin-walled flow restrictor having a valve seat 2 at a position near a front end and a space at a position near a rear end inside the outer tube 1 and having an inner diameter tapered toward the rear. Tube part 3
And a cylinder section 4 having a non-circular cross section and a diameter of an inscribed circle substantially the same as the inner diameter of the cylinder section 4 is continuously provided at the rear of the valve seat 2. At the rear end position of the outer cylinder 1 behind the outer cylinder 3, there is provided a modified through hole 6 whose cross section is non-circular and the diameter of the inscribed circle is slightly larger than the inner diameter of the flow control cylinder 3. The rod 7 is movably accommodated in the front-rear direction, and the valve rod 7 is biased forward by a valve spring 8. A slope 9 is provided at the front end of the valve rod 7 so as to be in close contact with the valve seat 2. A piston portion 1 slidable on the inner surface within the range of the cylinder portion 4 and the deformed cylindrical portion 5 on the side surface portion.
0, and the diameter of the circumscribed circle is slightly smaller than the inner diameter of the flow control cylinder 3 and the diameter of the inscribed circle of the irregularly shaped through-hole 6 at the rear end of the valve stem 7. In addition, a deformed shaft portion 11 whose front end portion is located forward of the flow control cylinder portion 3 is provided in a state where the slope portion 9 at the front end of the valve stem is in close contact with the valve seat 2. A cylindrical shaft portion 12 is provided in front of 11 and has a circular cross section and has a side surface portion in close contact with the flow control cylinder portion 3 within a range in which the piston portion 10 slides on the cylinder portion 4 by retreating the valve stem 7. A valve device to be attached to a writing or coating device for a liquid material.