JPS6013664A - Receiving vessel for fluidized substance - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fluid material storage container for storing fluid materials such as liquids and powders, and further relates to an air venting structure for sealing the container after filling the fluid material. .

A fluid substance storage container for storing liquid such as printing ink or other fluid substances includes a cylindrical body having an outlet at one end and an opening at the other end; It has a piston (movable bottom plate) inserted through the opening and movable in the axial direction of the cylindrical body, and the piston cooperates with the cylindrical body on one side to define a fluid substance storage chamber. A movable piston-type fluid substance storage container is known.

In general, the operation of filling a fluid substance storage container with a fluid substance as described above is performed by closing the outlet with a plug or a seal, and then filling the fluid substance from the opening with the piston removed from the cylindrical body. This is done by injecting it into the cylindrical body, and the piston that has been removed from the cylindrical body J is inserted into the cylindrical body from the opening after the above-mentioned filling operation with the fluid substance is completed, and one of the pistons is inserted into the cylindrical body from the opening. The fluid material storage chamber defined by the cylindrical body is sealed on the side.

In the fluid substance storage container, if air remains in the fluid substance storage chamber after the piston is installed and rj, the fluid substance storage container is connected to a suction pump and the suction pump closes the fluid substance storage chamber. If this fluid substance is sucked out, the suction pump will suck in the residual air in the fluid substance storage chamber, and there is a risk that the function of the suction pump will stop. In addition, residual air in the fluid material storage chamber has a serious adverse effect on the storage stability of the fluid material in the fluid material storage chamber, especially when the fluid material deteriorates due to contact with air, such as printing ink. , the fluid material in the fluid material storage chamber deteriorates during storage.

Various measures have been considered in the past for removing air when a piston is inserted into a fluid substance storage container as described above.
As one method, a hairpin-shaped clip is placed on the front edge of the cylindrical body, and in this state, a piston is press-fitted into the cylindrical body through the opening, and at this time the diameter of the cylindrical body expands. A method is known in which air is removed from a gap created between the inner circumferential surface of the shaped body and the outer circumferential surface of the piston. However, with this method, there is a risk that the outer peripheral surface of the piston may be damaged due to contact with the clip when the piston is press-fitted, and the workability is very poor, making it difficult to automate the work. This method has the disadvantage that this work must be done manually.Also, in this method, if the surface of the piston on the fluid substance storage chamber side is flat, air can be removed reliably, but if the surface of the piston If a recessed part is provided in the four parts for connection with a suction pump when viewed from the side of the fluid substance storage chamber, it is impossible to extract the air remaining in the four parts.

SUMMARY OF THE INVENTION An object of the present invention is to provide an improved fluid substance storage container in which the air in the fluid substance storage chamber can be reliably and efficiently vented without complicating the structure, and the work can be automated. There is.

According to the present invention, in the flowable substance storage container of the type described above, the piston has a hole provided through the piston and a hole connected to the hole on the one side of the piston. This is achieved by a fluid material storage container that is provided with an air vent thin tube made of synthetic resin that extends on the opposite side and communicates with the fluid material storage chamber.

According to this configuration, as the piston is inserted into the cylindrical body, the air in the fluid substance storage chamber is discharged from the air venting tube, and moreover, after the air in the fluid material storage chamber is discharged, the air in the fluid substance storage chamber is discharged. When the filled fluid substance flows into the air venting capillary, it can be reliably confirmed that the air venting in the fluid material storage chamber is completed. This confirmation will be more reliable if the air venting tube is transparent or translucent so that it can be visually confirmed that the fluid substance has flowed into the air venting tube from the outside of the air handling tube. Furthermore, by detecting this using an optical sensor, it becomes possible to automate the work.

After the air venting is completed, the air venting all tubes may be melted and cut by heating with high frequency irradiation or the like, and at the same time, the holes in the air venting thin tubes may be closed.

The invention will be explained in detail below by way of example embodiments with reference to the accompanying drawings. 1 and 2 show one embodiment of a fluid substance storage container according to the present invention. In these figures, 1 has a cylindrical body made of synthetic resin or metal such as aluminum, and the cylindrical body integrally has an end plate 2 at one end. An outlet 3 is provided in the center of the holder. On the end plate 2, a sealing seal 4 for closing the outlet 3, an annular member 10 made of an iron plate having openings 6 and 8 respectively aligned with the outlet 3, and an annular member 7 made of a rubber magnet plate are superimposed on each other. It has been pasted.

The annular member 7 is configured to connect the cylindrical body 1 to the suction pump by magnetically attracting a magnetic member disposed around a suction pipe P of a suction pump (not shown).

The narrow end of the cylindrical body 1 is open, and a piston 10 is inserted into the cylindrical body 1 through this opening 9.

The piston 10 is often made of synthetic resin, is inserted into the cylindrical body 1 through the opening 9, and has an outer circumferential surface 10a in sliding contact with the inner circumferential surface of the cylindrical body 1 so as to be movable in the axial direction. A fluid substance storage chamber 11 is defined on one side of the inclined surface 10b in cooperation with the cylindrical body 1. The air vent thin tube 10 is the second
As shown by the imaginary line in the figure, the suction pipe P of the suction pump, which has broken through the seal 4 and protrudes into the cylindrical body 1, reaches the stroke end where it abuts the end plate 2. In order to avoid interference and accept this, an end face 1 is placed in the center.
The concave portion 12 is recessed when viewed from the side of 01). The bottom 12a of the recess 12 is provided with a hole 13 that passes through the piston 10, and the bottom 12a has an air vent tube extending from this hole to the side opposite to the end plate 121). 14 are integrally provided. Air vent thin tube 14
is connected to the hole 13, and the hole 15 provided by the air vent II pipe 14 communicates with the hole 13.

The air vent thin tube 14i is made of thermoplastic synthetic resin, and is preferably transparent or translucent.

The air vent thin tube 10 is inserted into the cylindrical body 1 through the opening 9 after a fluid substance such as printing ink is injected into the cylindrical body 1 through the opening. The air in the space left between the end surface 101 of the air venting capillary 10 and the filling surface of the fluid substance filled in the cylindrical body 1 due to the insertion of the air venting capillary 10 passes through the holes 13 and 15. It is discharged outside the cylindrical body 1.

As the air in the gap is discharged, the fluid substance in the cylindrical body 1 also flows into the four parts 12, and when all the air in the gap is discharged, the fluid substance passes through the hole 13 for air venting. It comes to flow into the hole 15 of the thin tube 14. Hole 15
It is confirmed that the air in the fluid substance storage chamber 11 has been completely vented due to the fluid flowing into the fluid substance storage chamber 11, and after this, the root portion of the air vent tube 14 is melted and cut by heating by high frequency irradiation, etc., as shown in FIG. As shown in FIG. 2, at the same time, the area around the hole 13 of the air venting tube 12 dissolves, thereby closing the hole 13.

Although the present invention has been described in detail above with reference to specific embodiments, it is understood that the present invention is not limited thereto and that various embodiments are possible within the scope of the present invention. This will be obvious to businesses.

[Brief explanation of the drawing]

1 and 2 each show one embodiment of the fluid substance storage container according to the present invention, of which FIG. 1 shows the state before the piston is attached to the cylindrical body, and FIG. A thin tube for air venting is attached to the cylindrical body.
f is removed to show the IC status. DESCRIPTION OF SYMBOLS 1... Cylindrical body, 2... End plate, 3... Outlet, 4...
... Sealing seal, 5... Annular member, 6... Opening,
7... Annular member, 8... Opening, 9... Opening,
10... Piston. 11... Fluid substance storage chamber, 12... Recess, 13.
・One hole. 14... air vent thin tube, 15... porosity Applicant: Riso Kagaku Kogyo Co., Ltd. Agent: Patent attorney
Masaki Akashi 1st Figure 2

Claims (1)

[Claims] a cylindrical body having a side outlet at one end and an open end;
In a fluid substance storage container having a piston movable in a JIll line direction, the piston cooperates with the cylindrical body on one side thereof to define a fluid substance storage chamber, the piston includes a hole provided through the piston, and an air vent made of synthetic resin connected to the hole, extending to a side opposite to the one side of the piston G, and communicating with the fluid substance storage chamber. A fluid substance storage container provided with a thin tube.