JPH022418Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a supply device for materials such as liquid gaskets, epoxy adhesives, and RTV silicone sealants that solidify or deteriorate due to air or moisture in the air.

The above-mentioned material that solidifies or deteriorates due to air is airtightly housed in a pail can, and in the supply section, a pump sucks out the material in the pail can. Therefore, it has been proposed to use a follower plate that slides on the inner circumferential surface of the conventional pail to isolate the material from the air, but even with this, air gets mixed into the material when the pail is replaced. There is a drawback that the follow plate does not slide smoothly inside the pail can.

For this purpose, the material 30 is placed in a bag 31 as shown in FIG.
When in use, a conically expanding follower plate, that is, a rubber wiper 34 provided at the lower end suction port of the high-pressure pump 33 of the supply device is applied to the upper part of the material 30.
0, but even this is insufficient to isolate the air from the material, and after use, the internal volume of the rubber wiper 34, for example, 1.5 to 2.0, of the material remains, so it is wasteful and wastes time. When replacing the can, the material drips and contaminates the surrounding area, and the volume of the rubber wiper allows air to get into the material, which can impede suction and cause bead breakage, as well as deteriorate the material and cause it to solidify. This has the disadvantage that the suction port or supply pipe may become clogged.

The present invention aims to eliminate such drawbacks by inserting an inexpensive disposable inner lid made of molded polyethylene, nylon, etc. with a flat bottom into the bag containing the material, and this inner lid has a diameter of 50 mm or less. In addition to providing a through hole, the outer end of this inner lid should be in sliding contact with the inner circumferential surface of the pail can to prevent the material from coming into contact with air, and the pump of the feeding device should be equipped with an adapter that has a suction port with a diameter of 50 mm or less. This prevents material from dripping or dripping when replacing the pail.

An embodiment of the present invention will be described in detail below with reference to the drawings.

As shown in FIG. 1A, a bag 2 made of polyethylene, nylon, etc. containing a material 1 made of a silicone sealant is stored in a pail can 4 with its outlet tied with a string 3. An outer lid 5 is fitted to the upper end. A disposable inner lid 6 made of plastic with a flat bottom surface is fitted inside the bag 2 above the material 1, and a desiccant such as silica gel 7 is placed on the inner lid 6. As shown in FIG. 1B, the inner lid 6 has a through hole 8 with a diameter of 50 mm or less in the center.
An aluminum film 9 is bonded above the through hole 8.
Further, the peripheral part of the inner lid 6 forms a cylindrical part 10 that extends upward, and the upper end 11 of the cylindrical part 10 is approximately
It expands outward in an inverted conical shape at an angle of 30 degrees, and its outer end 12 slides into vertically movable contact with the inner peripheral surface of the pail can 4 through the membrane of the bag 2.

As shown in the second figure, a support stand 15 is fixed horizontally on a stand 13 on which the pail can 4 is placed via a vertical movement cylinder 14 in the supply device.
A cylinder 16 for driving the pump is fixed on top of the cylinder 5. A piston 19 of a pump 18 for sucking material is connected to the lower end of a piston shaft 17 extending below the cylinder 16, and an adapter 21 having a suction port 20 with a diameter of 50 mm or less is fixed to the lower end of the pump 18.

In the figure, reference numeral 22 denotes an outlet of the pump 18, to which a flexible pipe 23 for supply is connected, and this pipe 23 is connected to a nozzle (not shown) in an application section (not shown).

Next, how to use this device will be explained.

The pail can 4 is transported in the state shown in the first figure. To use this, the support stand 15 is raised by the cylinder 14 in FIG. 2, and the pail can 4 is placed on the stand 13 as shown in the second figure. Next, the outer lid 5 of the pail can 4 is removed, the string 3 is untied, the bag 2 is opened, its upper part is opened, and the bag is folded back to the outside of the opening of the pail can 4.

Next, the silica gels 7, 7, . . . are taken out, the membrane 9 is broken, the pump 18 is lowered by the cylinder 14, and the adapter 21 of the pump 18 is placed above the inner lid 6. Thereby, the suction port 20 of the pump 18 communicates with the through hole 8 of the inner lid 6.

Thus, when the pump driving cylinder 16 is operated, the pump 18 is operated, and the material 1 is transferred to the pump 18.
The liquid is sucked in through an inlet 20, discharged through an outlet 22, and sent to a predetermined application section through a supply pipe 23.

When the amount of material 1 decreases, the inner lid 6 descends due to the weight of the pump 18, but at this time, the outer end 12 of the inner lid 6 slides on the inner peripheral surface of the pail can 4, and the material 1
scrape off without wasting anything. In this way, when the material 1 is used up, the flat lower surface of the inner lid 6 comes into close contact with the bottom surface of the pail can 4, and all the material is sent out through the through hole 8.

When the pail can 4 is empty, the support stand 15 and the pump 18 are raised by the cylinder 14, and the adapter 21 at the lower end of the pump 18 is raised while the inner lid 6 remains.
The material is allowed to escape from the inside of the pail can 4, but at this time, since the diameter of the suction port 20 at the lower end of the pump 18 is 50 mm or less, the material does not drip due to surface tension.

In this way, a new pail can 4 is placed on the stand 13,
Repeat the same action below.

The empty pail can 4 can be reused by discarding the inner lid 6 together with its bag.

As described above, according to the present invention, an inexpensive disposable inner lid made of a molded product such as polyethylene or nylon with a flat bottom surface is fitted into a bag containing materials, and this inner lid has a through-hole with a diameter of 50 mm or less. Since the outer end of the inner lid is in sliding contact with the inner circumferential surface of the pail can, the material does not come into contact with air, and therefore the material does not solidify or deteriorate. In addition, the pump of the feeding device is equipped with an adapter that has a suction port with a diameter of 50 mm or less to prevent material from dripping or dripping when replacing the pail, which not only prevents contamination of the surrounding area but also prevents material from dripping during feeding. Air does not get mixed into the material, and suction is not hindered, and its deterioration can be further completely prevented.

[Brief explanation of the drawing]

Figure 1A is a sectional view of a pail can in an embodiment of the present invention, B is an enlarged view of the end of the inner lid, Figure 2 is an explanatory diagram of the material supply device, and Figure 3A and B are conventional It is an explanatory view of a pail can and a supply device of the device. 1...Materials, 2...Bag, 4...Pail can, 5...
...outer cover, 6...inner cover, 8...through hole, 11...upper end, 12...outer end, 18...pump, 20...
Inlet, 21...adapter.

Claims (1)

[Scope of utility model registration request] In a supply device for materials that deteriorate due to air, which has a pail can and a suction pump, a bag containing the material is stored in the pail can, the top end of the bag is folded back to the outside of the opening of the pail can, and the bag is folded inside the bag. The inner lid is fitted with a flat bottom surface, and a through hole with a diameter of 50 mm or less is provided in the center of the inner lid, and the upper edge of the peripheral part of the inner lid expands outward, and the outer edge of the inner lid is inserted into the bag membrane. A supply device for a material that deteriorates due to air, the pump being provided with an adapter that is brought into sliding contact with the inner circumferential surface of a pail can through an adapter having a suction port with a diameter of 50 mm or less.