JP2772138B2 - Container filling device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a container filling apparatus for filling a container with a liquid or the like, and more particularly to adjusting the taste of the container.

[Prior Art] Conventionally, a method for adjusting the amount of filling of an empty container is described in Japanese Utility Model Publication No. 58-15359. According to this publication, the filling adjustment is performed by operating a press nut and a pad press provided at the end of the liquid injection tube.

[Problem to be Solved by the Invention] The flavor adjusting method configured as described above has the following problems. That is, when filling containers at a high speed, a large number of filling devices are arranged in a ring. Therefore, when changing the filling in accordance with various containers, it is necessary to perform the operation of the presser nut and the pad presser on all the filling devices, and the work efficiency is poor.

Therefore, the present invention provides a container filling device for solving such inconvenience.

[Means for Solving the Problems] A container filling apparatus according to the present invention includes a hollow housing which communicates with a filling liquid tank and is fixed to a lower part of the filling liquid tank, and a vent tube which is provided upright in the housing. A valve body fixed to the vent tube, the valve body fixed to the vent tube, and a valve body fixed to the vent tube; A liquid valve having a filling liquid flow passage formed with the outer surface of the vent tube, and an opening / closing valve formed in contact with an end of the vent tube; a first valve interposed between the valve body and the liquid valve; An elastic body, a bell movably attached to the liquid valve, having a container sealing member, and sealing between the liquid valve and the bell, and interposed between the valve body and the intermediate spring receiver. The second elastic body , Inserted between the liquid valve and the bell, the resilient force is greater than the resilient force of the first elastic body, and the sum of the resilient forces of the first elastic body and the second elastic body. A smaller third elastic body, an elevating device that can raise and lower the valve body to urge the valve body downward, a stop member for the intermediate spring receiver, and at least one of the filling liquid tank and the stop member. A drive device that can move up and down with respect to the table.

[Operation] When there is no container on the mounting table, the vent tube is urged downward via the valve body by the downward urging of the lifting device. On the other hand, the liquid valve moves relative to the valve body via the first elastic body due to the above-mentioned elasticity of the first to third elastic bodies and abuts on the end of the vent tube,
The so-called on-off valve is closed. On the other hand, when the valve body is raised by the elevating device, the liquid valve first comes into contact with the intermediate spring receiver, and then rises integrally with the intermediate spring receiver. Further, even after the liquid valve abuts against the intermediate spring receiver, the liquid valve is urged downward by the resilient force of the first elastic body and the second elastic body, so that the liquid valve is brought into contact with the liquid valve at the end of the vent tube. And the open / close valve keeps the closed state.

Conversely, when the valve body is lowered by the elevating device when there is an empty container on the mounting table, the intermediate spring receiver comes into contact with the stop member and stops lowering, so that the elastic force of the second elastic body lowers the liquid valve. The liquid valve no longer acts as a force, and the downward movement of the liquid valve stops due to the above-mentioned elastic relationship between the first to third elastic bodies. On the other hand, the vent tube moves downward and separates from the liquid valve, and the so-called on-off valve is opened. As a result, the filling liquid in the filling liquid tank is filled into the container via the housing, the passage, and the filling liquid flow passage.

Adjustment of the container filling is performed by a driving device capable of vertically moving at least one of the filling liquid tank and the stop member of the intermediate spring receiver. That is, by changing the position of the stop member or the filling liquid tank with respect to the mounting table, the positional relationship between the upper end of the container and the lower end of the liquid valve can be changed.

Example An example of the present invention will be described with reference to the drawings. FIG. 1 shows a cross-sectional view of a multiplicity of annularly arranged filling devices 1.
A hollow housing 101 is fixed to a lower portion of an annular liquid filling tank 132 in which a driving device that can move up and down with respect to a mounting table of a container (not shown) is provided with bolts (not shown). In the center of the housing 101, a vent tube 156 having a discharge passage protrudes at one end to the position of the gas layer of the filling liquid tank 132, and the other end is formed in a tapered opening shape. An opening / closing valve is provided upright at a position where it comes into contact with 144, and fills the container with the filling liquid. The hollow valve body 104 is coaxial with the housing 101 and has a housing 10.
It may be formed to be movable while maintaining airtightness with respect to 1; that is, it may be formed into an outer fitting or an inner fitting, but in this example, it has an inner fitting and slidable shape, and is provided at the other end. Is formed with a flange 109 for holding an elastic body 108 described later. In addition, filling liquid tank 1
In the case of a vacuum filling machine that puts 32 gas layers under negative pressure,
The seal between the housing 101 and the valve body 104 may be a seal that does not leak against the negative pressure.
The valve body 104 is fixed to the vent tube 156 and is integrated. A liquid passage 105 is formed in the valve body 104 through the hollow housing 101 as a passage for introducing the liquid in the filling liquid tank, and a filling liquid liquid passage 110 is formed by the outer wall of the vent tube 156. As will be described in detail later, the valve body 104
The pin shaft 1 is used as an engaging member that can be slidably fitted in the long hole portion 355 in the valve body 104 as an elevating device that moves up and down.
It is connected to a pair of arm members 350 via 36. The hollow liquid valve 144 can be moved while maintaining airtightness with respect to the valve body 104, that is, it can be formed in an outer fitting or an inner fitting shape. The first elastic body 108 is interposed between the first elastic body 108 and a flange 109 formed on the valve body 104. Note that, in the case of a vacuum filling machine in which the gas layer in the filling liquid tank 132 is set to a negative pressure, the seal between the valve body 104 and the liquid valve 144 may be a seal that does not leak against the negative pressure. Good. Further, a second elastic body 221 is mounted between the flange 109 and the intermediate spring receiver 220 whose annular direction is guided by the outer diameter portion of the center flange 226 of the liquid valve 144. The elastic force of the second elastic body 221 may be received by the housing 101 or the arm member 350 instead of being received by the flange 109. Further, the stop member 225 of the intermediate spring receiver 220 may be installed so as to be vertically movable by a driving device (not shown), but in this example, the filling liquid tank 132 is vertically movable so that it is fixed to a guide 361 described later. . A bell 140 is slidably fitted around the outer periphery of the liquid valve 144 via the liquid valve 144 and a third elastic body 223 and is sealed. Further, the liquid valve 144 is attached so as to be able to contact the intermediate spring receiver 220.
Note that the bell 140 has a positioning tapered surface 137 that narrows inward from the lower end so that the container can be easily inserted. A sealing member 138 as a sealing material for the container is provided at an inner end of the positioning tapered surface 137. The container 134 is mounted on a horizontal mounting table (not shown) fixed to the main body of the filling machine, and is restrained by a guide provided in a semicircular shape at a position centered on the filling device 1. ing.

Next, a structure for vertically moving the valve body 104 will be described with reference to FIG. 2 (a cross-sectional view taken along the line AA in FIG. 1). The housing 1 is located on the central outer surface of the valve body 104.
Pin axis 1 for moving valve body 104 up and down with respect to 01
A pin shaft 136 is slidably fitted to the long hole 355 of the arm member 350, and the arm member 350 has a roller 351 at one end and a pin 352 at the other end. This pin 352 is rotatably supported by a support arm 353 fixed to the lower surface of the filling liquid tank 132 with a bolt. The pin shaft 136
A rotation stop plate 137 for stopping the rotation of the valve body 104 is fitted to.

At a position between the elongated hole 355 and the pin 352 of the arm member 350, an elastic body 354 for urging the arm member 350 is inserted between the arm member 350 and the support arm 353, and a lower end of the elastic body 354 is The arm member 350 supports the washer 357. On the other hand, at a position between the long hole 355 of the arm member 350 and the roller 351, a housing is provided.
A guide 361, which is fixedly fixed to 101, is provided.
A stopper member 363 for limiting the lowering position of the arm member 350 is provided at the lower end of the 361. In addition, a control cam 360 is provided to contact the roller 351 and move the valve body 104 up and down via the arm member 350.

Next, the operation of the above configuration will be described with reference to FIGS. FIG. 3 is a view for explaining a filling step of a rotating filling apparatus according to an embodiment. The container 134 is fed while being kept at a constant height, and is filled in the direction shown by the arrow B. In the part of Fig. 3, the filling process is completed and the valve body
104 is a position where the vent tube 156 is to be raised, and the valve body 104 is moved upward by the roller 351 along the control cam 360. The part is along the control cam 360, and the valve body 104 is
Is a position where the container 134 is completely discharged and the container 134 is discharged. next,
The portion is a position indicating a state before the filling of the container 134 supplied from the outside of the filling device is started, and the valve body 104 moves downward while being controlled by the control cam 360 and the roller 351.

FIG. 4 shows an arm member 3 not shown because the container 134 does not exist.
FIG. 10 is a cross-sectional view showing a state where 50 is lowered, that is, a diagram in which an arm member 350 is in contact with a stopper member 363. The state in which the arm member 350 is completely lowered and the elastic body 354 is extended is shown, and the vent tube 156 is also lowered integrally with the lowering of the arm member 350. On the other hand, the liquid valve 144 is urged downward by the first elastic body 108, and the liquid valve 144 abuts at the end of the vent tube 156, and the so-called on-off valve is kept closed.

FIG. 5 is a cross-sectional view in which the arm member 350 is raised. When shifting from the state of FIG. 4 to the state of FIG.
With the rise of 350, the liquid valve 144 first comes into contact with the intermediate spring receiver 220, and then rises integrally with the intermediate spring receiver 220. Further, even after the liquid valve 144 abuts on the intermediate spring receiver 220, the liquid valve 144 is urged downward by the elastic force applied by the first elastic body 108 and the second elastic body 221 so that the liquid valve 144 The opening / closing bubble is kept closed by abutting at the end of the tube 156.

Next, FIG. 6 shows a state at the moment when the arm member 350 descends and the container 134 comes into contact with the seal member 138. Note that, also at this time, the opening and closing valve is in the closed state due to the elastic force of the first elastic body 108 and the second elastic body 221.

FIG. 7 shows a state at the moment when the arm member 350 is further lowered and the intermediate spring receiver 220 comes into contact with the stop member 225. During the transition from the state of FIG. 6 to the state of FIG. 7, the sum of the resiliences of the first elastic body 108 and the second elastic body 221 is selected to be larger than the resilience of the third elastic body 223. Therefore, the liquid valve 144 is pressed by the end of the vent tube 156 to keep the open / close valve closed. Then, the valve body 104, the vent tube 156, and the liquid valve 144 are integrally moved to move downward with respect to the bell 140, the movement of which has been stopped downward in the container 134, and
The elastic body 223 is compressed. When the arm member 350 further descends from the state shown in FIG. 7, the intermediate spring receiver 220 comes into contact with the stop member 225 and stops descending, so that the elastic force of the second elastic body 221 is used as a force for descending the liquid valve 144. No longer works.
At this time, since the elasticity of the third elastic body 223 is selected to be greater than the elasticity of the first elastic body 108, the liquid valve 144 stops moving downward. On the other hand, since the vent tube 156 moves downward, the vent tube 156 is separated from the liquid valve 144 to form a gap 180, and the open / close valve is opened. The lowering of the arm member 350 stops in a state where the arm member 350 is in contact with the stopper member 363, and the state shown in FIG. 8 is obtained. As a result, the filling liquid in the filling liquid tank 132 is
Inside 01, it flows down the passage 105 and the liquid passage 110 and flows into the container 134. On the other hand, the air in the container 134 is
Is discharged to the gas layer of the filling liquid tank 132 from the discharge path 157 formed in the container 134, and the container 134 can be filled in a predetermined amount. In addition, bullet 354
Is greater than the sum of the resilience of the second elastic body 221 and the third elastic body 223.
350 can be lowered to a position where it comes into contact with the stopper member 363.

Next, the state when the filling is completed corresponds to the part shown in FIG.
Raised by 60 and rollers 351. Accordingly, the valve body 104 and the vent tube 156 connected to the valve body 104 rise. However, since the third elastic body 223 is selected to be larger than the elasticity of the first elastic body 108, the intermediate spring receiver 220, the liquid valve 144, and the bell 140 do not move. Then, the distal end portion of the vent tube 156 and the liquid valve 144 come into contact with each other, and the open / close valve is closed to return to the state shown in FIG. Further, when the arm member 350 rises, the sum of the resilient forces of the first elastic member 108 and the second elastic member 221 is selected to be larger than the elastic force of the third elastic member 223.
0, the liquid valve 144 and the vent tube 156 move upward integrally. At this time, the liquid valve 144 rises with respect to the bell 140 and passes through the state (FIG. 6) at the moment when the sealing member 138 is detached from the container 134, and then the state section shown in FIG.
The state is as shown in the figure.

Next, a description will be given of the adjustment of the taste depth. The taste depth is determined by the position between the lower end position of the liquid valve 144 and the upper end of the container 134 abutting on the seal member 138 (see FIG. 7). It is determined by the dimension a). That is, when the filling liquid is filled in the container 134, the air in the container 134 is transferred from the vent tube 156 to the filling liquid tank.
Although the air is exhausted to the gas layer 132, the air of the portion of the dimension a shown in FIG. 7 does not escape, so the dimension a determines the depth of penetration. Therefore, as a method of changing the dimension a when changing the filling depth, the thickness of the sealing member 138 is changed or the filling liquid tank 132 that determines the position of the lowermost end of the liquid valve 144 is set.
Change the height or the position of the stop member 225 in the height direction,
Alternatively, the height of the mounting table of the container 134 that determines the position of the upper end of the container 134 may be changed. To change the thickness of the seal member 138, it is necessary to adjust each of a large number of filling devices (opening / closing valves) arranged annularly as in the related art. Therefore, in the present embodiment, as a method of adjusting the filling depth without changing the thickness of the sealing member 138, it is easy to operate the driving device for vertically moving the filling liquid tank 132 which can be easily installed as described above. Can be done. Alternatively, the same can be said by using a spacer as a means for changing the position of the stop member 225.

As shown in FIG. 4, even if the arm member 350 is lowered, the open / close valve is not opened.
Even when there is no container, the filling liquid is not filled. Also, by changing the elasticity of the third elastic body 223, containers of various strengths can be easily accommodated, and the containers can be filled without being damaged. Also, in the above, the arm member 35
Although the elastic body 354 is used as urging means for urging 0,
As shown in FIG. 9 (a cross-sectional view of the filling device), a pneumatic cylinder or the like that can move the arm member 350 up and down corresponding to the control cam 360 may be used. Also, the valve body 10 described above is used.
4. Although the liquid valve 144 and the bell 140 are formed so as to be movable and slidable for the purpose of sealing, the seal portion may be formed so as to be movable with a separately formed bellows or the like.

[Effects of the Invention] According to the container filling device of the present invention, by adjusting at least one of the filling liquid tank and the stop member, it is possible to easily adjust the filling depth for a large number of filling devices. You can do it. In addition, even if there is no container, the opening / closing valve does not open, and furthermore, it is possible to cope with the strength of the container by variously selecting the elasticity of the elastic body. Without filling.

[Brief description of the drawings]

1 shows an embodiment of the present invention, FIG. 1 is a sectional view of a liquid filling device, FIG. 2 is an A-A sectional view of FIG. 1 showing an arm member,
FIG. 3 is an explanatory view of a filling step of the filling device, FIGS. 4 to 8 are sectional views of the filling device for explaining the operation, and FIG. 9 is a sectional view showing a filling device using another lifting device. 101 ... housing, 104 ... valve body 108 ... first elastic body, 105 ... liquid passage 110 ... liquid passage, 132 ... filling liquid tank 144 ... liquid valve 156 ... vent tube 157 ... discharge passage, 220 ... intermediate spring receiver 221 ... first 2 elastic body, 223 ... third elastic body 225 ... stop member 350 ... arm member, 351 ... roller 354 ... urging means (elastic body)

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takayuki Takakawa 1st place, Takamichi, Iwazuka-cho, Nakamura-ku, Nagoya-shi, Aichi, Japan Nagoya Machinery Works, Mitsubishi Heavy Industries, Ltd. (72) Inventor Katsuhiko Kondo Nakamura-ku, Nagoya-shi, Aichi No. 1 Takamichi, Iwazuka-cho Mitsubishi Heavy Industries, Ltd., Nagoya Kiki Seisakusho (72) Inventor Yukio Yamaguchi No. 1, Iwazuka-cho, Takamura, Nagoya, Nagoya, Aichi Prefecture, Mitsubishi Heavy Industries, Ltd. JP-A-2-2422783 (JP, A) JP-A-2-219787 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B67C 3/00-7/00 B65B 1/00 -3/36 B65B 37/00-37/20

Claims (1)

(57) [Claims] 1. A hollow housing communicating with a filling liquid tank and fixed to a lower part of the filling liquid tank, a vent tube erected in the housing, and movably attached to the housing. A passage for introducing the liquid in the filling liquid tank is formed, and a valve body fixed to the vent tube and movably attached to the valve body to form a filling liquid flow passage with an outer surface of the vent tube. A liquid valve having an open / close valve in contact with an end of the vent tube, a first elastic body interposed between the bubble body and the liquid valve, and movably attached to the liquid valve. A bell having a sealing member for the container and being sealed between the liquid valve and the valve; a second elastic body interposed between the valve body and the intermediate spring receiver; Interposed between and A third elastic body which is larger than the elastic force of the first elastic body and smaller than the sum of the elastic forces of the first elastic body and the second elastic body; And a driving device capable of vertically moving at least one of the filling liquid tank and the stopping member with respect to the mounting table of the container. Container filling equipment.