JP2006008199A - Filling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a filling device designed to solve such a problem that, after filling is completed, inner pressure inside a filling nozzle rises due to the closure of the opening end inside the filling nozzle being lowered to close the opening end of the filling nozzle, thus, in the next operation, that is, when the valve inside the filling nozzle is raised, response becomes poor by so much as the inner pressure has risen. <P>SOLUTION: The filling device P comprises a cylinder 1 having an inlet port 1a for filling material, an outlet port 1b for filling material, and a passage 1c for filling material communicating with the inlet and outlet ports for filling material, a movable body 11 that moves inside the cylinder, a movable body's tip outer periphery portion 11a that is provided at the tip side of the movable body to close the outlet port for filling material by coming in contact with the inner periphery portion of the outlet port for filling material, a movable body's recess 11b provided at the side directed from the tip end outer periphery portion of the movable body toward the rear end portion of the movable body so as to recess from the tip end outer periphery portion of the movable body, a retractable means S, and a filling nozzle 20 that is connected to the outlet port for filling material and fills the filling material into a container B, wherein the moving means moves the movable body so as to protrude when charging the filling material, the tip end of the movable body from the outlet port for filling material, the movable body is moved so as to open the outlet port for filling material through the movable body's recess 11b, and when stopping the charging, the movable body is moved to close the outlet of the filling material at the outer peripheral part of the tip end of the movable body at the front end of the moving body. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

    The present invention relates to a filling device, and more particularly, to a filling device with good responsiveness.

As a filling device, a valve body that moves up and down in the filling nozzle is provided, the valve body is raised to open and fill the opening end of the filling nozzle, and after filling, the valve body is lowered to open the opening end of the filling nozzle. It is made to close (for example, refer patent document 1).
JP-A-9-86502

However, in the above-described filling device, after filling is completed, the valve body in the filling nozzle is lowered to close the opening end of the filling nozzle, so that the internal pressure in the filling nozzle rises and the next operation is performed. Time, that is, when the valve body in the filling nozzle is raised,
The problem of poor response occurred.
The present invention provides a filling apparatus that eliminates the above-mentioned problems.

    In order to achieve the above object, the filling device according to claim 1 includes a filler inlet, an outlet of the filler, a filler passage communicating with the filler outlet and the filler inlet. , A moving body that moves in the cylinder, and a moving body that is provided on the distal end side of the moving body and that contacts the outlet inner peripheral portion of the outlet portion of the filler to close the outlet portion of the filler A distal end outer peripheral portion, a moving body concave portion provided on a side from the outer peripheral end portion of the moving body toward the rear end portion of the moving body and recessed from the outer peripheral end portion of the moving body, and the moving body in the cylinder A moving means for moving forward and backward freely, a filling nozzle connected to the outlet portion of the filler, and filling the container with the filler, and the moving means, at the time of filling, the tip of the moving body at the filler Projecting from the outlet part of the The movable body is moved so as to open the outlet portion of the filler, and when the filling is stopped, the movable body is moved so as to block the outlet portion of the filler at the outer peripheral portion of the distal end of the movable body. Control.

    According to a second aspect of the present invention, there is provided the filling apparatus according to the first aspect, further comprising a stopper for restricting the movement of the moving body and an adjusting means for adjusting the position of the stopper to be movable. . .

    According to the first aspect of the present invention, the front end of the movable body protruding from the outlet portion of the filler is discharged at the outer peripheral portion of the front end of the movable body by the moving means when the filling is stopped. In order to move the moving body so as to block the part, the moving body moves backward from the inside of the filler passage of the cylinder, a negative pressure is generated between the moving body and the filling nozzle, and the next time the moving body is moved, the moving body moves. The body can be operated with a small force, and a filling device with good responsiveness can be obtained.

    According to the filling device of the second aspect, in addition to the effect of the invention described above, the force for lifting the liquid to be dripped from the filling nozzle can be arbitrarily adjusted. In particular, it is useful when a filling nozzle having a different diameter is used.

A filling apparatus according to an embodiment of the present invention will be described with reference to the drawings.
1 to 5, P is a filling device, and the filling device P is a device that fills a container B that is sequentially conveyed with a certain amount of filling material (for example, liquid, viscous material, etc.), and has a cylinder 1. is doing.
The cylinder 1 has a filler inlet 1a, a filler outlet 1b, and a filler passage 1c communicating with the filler outlet 1b and the filler inlet 1a.

    The filler inlet 1 a is connected to the filler supply pipe 2. Reference numeral 3 denotes a switching valve. In FIG. 1, the switching valve 3 is positioned so that the filler flows toward the filler supply pipe 2.

The cylinder 1 is provided with a moving body 11 that moves in the cylinder 1, and the moving body 11 moves in the vertical direction, for example. On the distal end side of the movable body 11, there is provided a movable body distal end outer peripheral portion 11a that contacts the outlet inner peripheral portion of the filler outlet portion 1b and closes the filler outlet portion 1b. FIG. The outer peripheral part 11a is contacting the outlet inner peripheral part of the outlet part 1b of a filler, and has shown the state which has plugged up the outlet part 1b of a filler.
Moreover, the moving body recessed part 11b is provided in the side which goes to the rear-end part of the mobile body 11 from the mobile body front-end | tip outer peripheral part 11a, and is dented from the mobile body front-end | tip outer peripheral part 11a. As shown in FIG. 3, there are four movable body recesses 11b along the longitudinal direction of the movable body 11. However, the number is not limited to this, and for example, there are two or three movable body recesses 11b. Of course, it is also possible. FIG. 2 shows a state in which the distal end portion of the movable body 11 protrudes from the outlet portion 1b of the filler, and the outlet portion 1b of the filler is opened via the movable body concave portion 11b.

S is a moving means for moving the movable body 11 in the cylinder 1 so that the movable body 11 can be moved forward and backward. The moving means S, as shown in FIGS. The movable body 11 is moved so as to project from the outlet portion 1b and open the outlet portion 1b of the filler through the movable body concave portion 11b, and when the filling is stopped, as shown in FIG. 4 and FIG. The movable body 11 is moved and controlled so as to close the outlet portion 1b of the filler with the outer peripheral portion 11a of the movable body tip of the portion.
Specifically, for example, the moving body 11 is moved up and down in the vertical direction, for example, by applying air pressure to the rear end 11A of the moving body 11 and the midway portion 11B on the side close to the rear end 11A. Can do. 11C is a first supply / discharge pipe that supplies compressed air to the rear end 11A and discharges air on the rear end 11A side. 11E is a second supply / discharge pipe that supplies compressed air to the midway part 11B and discharges air on the midway part 11B side. That is, by a switching valve (not shown), the first supply / discharge pipe 11C supplies compressed air, and the second supply / discharge pipe 11E discharges air, as shown in FIGS. The movable body 11 can be lowered, and conversely, by a switching valve (not shown), the first supply / discharge pipe 11C discharges air and the second supply / discharge pipe 11E supplies compressed air. As shown in FIGS. 4 and 5, the movable body 11 can be raised.

    A filling nozzle 20 fills the container B with the filler connected to the outlet portion 1b of the filler. The filling nozzle 20 has an internal thread 20a connected to the outlet portion 1b of the filler on the side far from the container B. This female screw 20a is adapted to engage with a male screw 11z provided outside the outlet portion 1b of the filler.

    Therefore, according to the filling apparatus P of this embodiment, the moving body 11 is moved by the moving means S when the end of the moving body 11 protruding from the outlet portion 1b of the filler (see FIGS. 1 and 2) is stopped. Since the movable body 11 is moved so as to block the outlet portion 1b of the filler with the outer peripheral portion 11a of the movable body at the tip of the movable body (see FIG. 4 and FIG. 5), the movable body 11 is moved from within the filler passage 1c of the cylinder 1. Retreat, a negative pressure is generated between the moving body 11 and the filling nozzle 20, and when the moving body 11 is operated next, the moving body 11 can be operated with a small force, and the responsiveness is excellent. P can be obtained. In FIG. 4, a force for lifting the filler (for example, liquid) 30 to be dropped from the filling nozzle 20 due to the negative pressure described above acts, and the liquid 30 is held in the middle of the filling nozzle 20, and the filling material drips. It shows a state that can be prevented.

Reference numeral 40 denotes a stopper that restricts the movement of the movable body 11. The stopper 40 is positioned on the rear end side of the movable body 11 so that the movement of the movable body 11 is restricted by contacting the stopper 40. It has become. The position of the stopper 40 is movably adjusted by the adjusting means. The stopper 40 is, for example, a male screw body, and the adjusting means is, for example, a female screw provided on the inner periphery of the upper end of the cylinder 1 that is screwed into the male screw body. This adjusting means can arbitrarily adjust the force for lifting the filler 30 to be dropped from the filling nozzle 20. In particular, it is useful when a filling nozzle having a different diameter is used.
That is, even if the position of the stopper 40 is set so as to match the filling nozzle 20 of FIG. 1, the filling nozzle 20 ′ (see FIG. 6) having a diameter smaller than the diameter of the filling nozzle 20 of FIG. The filler 30 to be dripped is lifted into the female screw 20a, and the air in the female screw 20a and the outside air are conducted, and as a result, the lifted filler is dripped into the filling nozzle 20 ′. A malfunction will occur.
This problem can be solved by the adjusting means described above. Specifically, the male screw body of the stopper 40 may be advanced toward the liquid outlet 1b, and the tip of the male screw body of the stopper 40 is lowered to the position shown in FIG. In FIG. 6, the same reference numerals as those in FIGS. 1 to 5 are given, and the description thereof is omitted.

FIG. 1 is a schematic cross-sectional view showing a filling state of a filling apparatus according to an embodiment of the present invention. FIG. 2 is a schematic partially enlarged sectional view showing a part of FIG. 1 in an enlarged manner. FIG. 3 is a schematic cross-sectional view taken along line XX of FIG. FIG. 4 is a schematic cross-sectional view showing a filling end state (stopped state) of the filling apparatus of FIG. 1. FIG. 5 is a schematic partially enlarged sectional view showing a part of FIG. 4 in an enlarged manner. FIG. 6 is a schematic sectional view showing a filling state of another embodiment different from the filling apparatus of FIG.

Explanation of symbols

P: Filling device 1: Cylinder 11: Moving body 20: Filling nozzle

Claims (2)

A cylinder having a filler passage communicating with the inlet portion of the filler, the outlet portion of the filler, the outlet portion of the filler and the inlet portion of the filler;
A moving body that moves in this cylinder,
A movable body tip outer peripheral portion that is provided on the distal end side of the movable body, contacts the outlet inner peripheral portion of the outlet portion of the filler, and closes the outlet portion of the filler;
A moving body recess provided on the side from the outer periphery of the moving body toward the rear end of the moving body and recessed from the outer periphery of the moving body;
Moving means for moving the moving body in the cylinder so as to freely advance and retract;
A filling nozzle connected to the outlet of the filler and filling a container with the filler;
In the filling, the moving means moves the moving body so that the leading end of the moving body protrudes from the outlet portion of the filler and opens the outlet portion of the filler through the concave portion of the moving body. At the time of a stop, the said moving body is controlled by moving the said moving body so that the outlet part of the said filling material may be plugged up by the said mobile body front-end | tip outer peripheral part of the front-end | tip part of the said moving body. A stopper that regulates the movement of the moving object;
2. A filling apparatus according to claim 1, further comprising an adjusting means for adjusting the position of the stopper so as to be movable.

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