JPS6058113B2 - Filling valve cleaning jig - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a filling valve cleaning jig that can be automatically attached to a filling valve.

FIGS. 1 to 4 show an example of a conventional filling valve cleaning jig. In FIGS. A main body 25 is provided with an abutting part 21, a mounting part 22 for a claw member (to be described later) and a cleaning liquid passage 23 in the substantially central part, and an air vent passage 24 in the lower part, and a snap ring 26 is used to secure the main body 25 to the lower outer periphery of the main body 25. a spring seat 28 provided with an air vent passage 27 which is connected to the air vent passage 24 of the main body 25; an outer cylinder 29 screwed onto the spring seat 28;
An inner cylinder 32 is slidably fitted around the outer periphery of a substantially central part of the main body 25 and is supported by a spring 30 interposed between the spring seat 28 and has a claw part 31 on its upper part; It is fitted around the outer periphery of the valve and supported by a spring 33 interposed between it and the outer cylinder 29, and has a packing 34 at its upper end that comes into contact with a centering cup of a filling valve, which will be described later, and an air vent passage 35 at its lower part. retainer 36,
The main body 25 has a pin 37 that is pivotally supported at its approximate center by the claw member mounting portion 22, and has a claw portion 38 at its upper end and an abutment portion 39 at its lower end.
and a pawl member 40 that swings about the pin 37 when the contact portion 39 abuts the pawl portion 31 of the inner cylinder 32, and the pawl portion 38 engages with a centering cup of a filling valve to be described later. It is configured.

Further, in FIG. 4, 41 is a filling machine, 42 is a bottle feeding conveyor, 43 is an indexing screw, 44 is a bottle feeding starwheel, 45 is a bottle discharging starwheel, and 46 is a bottle discharging conveyor. Further, in FIG. 3, 47 is a filler bowl of the filling machine 41, 48 is a part of a filling valve attached to the filler bowl, a centering cup 49 having a tapered portion 49a at the lower part, a packing 50, and a vent tube 5.
Several dozen sets of filling valves 48 are installed in one filling machine. 52 is centering cup 4
9 is a screwed joint; 53 is a vibrator connected between the filler bowl 47 and the joint 52; 54 is a pump provided in the vibrator; 55 is a lifting bottle provided below the filling valve 48; It is a stand.

In the above configuration, after the filling operation is completed and the liquid in the filler bowl 47 is collected into a tank (not shown), the cleaning liquid is fully supplied into the filler bowl 47, and the pump 54
drive.

On the other hand, a number of cleaning jigs 20 corresponding to the filling valves 48 are transferred from the bottle feeding conveyor 42 shown in FIG.
, via the bottle feeding star wheel 44 etc., the elevating bottle stand 5
5.Feed on top. The elevating bottle table 55 rises in the same way as during normal filling work, and first the packing 34 provided at the upper end of the retainer 36 of the cleaning jig 20 comes into contact with the lower end of the centering cup 49 of the filling valve 48. Bottle stand 55
However, as it rises further, the spring 33 is compressed and the body 25
The inner cylinder 32 rises together with the outer cylinder 29, and the abutting part 21 of the main body 25 abuts the packing 50 of the filling valve 48 at the X1 position in FIG. 4, and the rise stops and the state shown in the right half of FIG. 3 is reached. . As the rotation of the filling machine 41 progresses and reaches the X2 position in FIG.
The cleaning liquid flows down the filling valve 48 and into the main body 25 and the inner cylinder 32, and the pressure of this cleaning liquid causes the inner cylinder 32 to flow down.
The spring 30 is lowered while compressing the spring 30, and the state shown in the left half of FIG. 3 is reached. For this reason, the claw portion 31 of the inner cylinder 32 contacts the contact portion 39 of the claw member 40 and swings the claw member 40 about the pin 37, so that the claw portion 38 contacts the tapered portion of the centering cup 49 of the filling valve 48. 49a. When the rotation of the filling machine 41 further advances and reaches position X in FIG. 4,
The bottle stand 55 begins to descend, but the claw portion 38 of the claw member 40
is in close contact with the tapered part 49a of the centering cup 49 due to the pressure of the cleaning liquid, and even if the bottle stand 55 is further lowered, the cleaning jig 20 remains attached to the filling valve 48, and the filling valve 48 is connected to the pump 54. The cleaning fluid is circulated through the cleaning solution. Note that during normal filling operations, the communication state between the filler bowl 47 and the filling valve 48 is closed at position X3 in FIG. 4, but the communication state is maintained during filling valve cleaning.

Further, when passing between the supply and discharge bottle star wheels 44 and 45, it is assumed that the cleaning jig 20 attached to the filling valve 48 passes above the supply and discharge bottle star wheels 44 and 45. Conventional cleaning jigs are automatically attached to the filling valve and cleaned as described above, but since the cleaning jigs are attached to the filling valve using the pressure of the cleaning liquid, If the cleaning solution is left inside after cleaning, a pressure leak may occur for some reason, and the
As the inner cylinder 32 rises between X1 and X1, the claw portion 3 of the claw member 40
8 and the centering cup 49 and the cleaning jig 20 could fall off from the filling valve 48, which could cause the cleaning liquid to scatter around.

The present invention has been proposed in view of the above points, and includes a first ball that engages with an engaging portion provided on a vent tube of a filling valve and a second ball that clamps an inner cylinder. a recess that is slidably supported by the main body through a spring interposed between the main body and accommodates the first ball; and a pressing portion that presses the first ball inward. an inner cylinder having an engaging part and a recess for accommodating the second ball, the inner cylinder being slidably fitted and supported into the inner cylinder via a spring interposed between the main body and the inner cylinder; an outer cylinder having a rise stop part for stopping the rise of the filling valve, and a sealing member that comes into close contact with the centering bell of the filling valve; It is characterized by comprising a holding member that can press the second ball into the recessed part of the inner cylinder, and its purpose is to automatically attach the second ball to the filling valve without being affected by the pressure of the cleaning liquid, etc. It is an object of the present invention to provide a filling valve cleaning jig that can be used to clean a filling valve without any fear of falling off.

Since the present invention is constructed as described above, the cleaning jig supplied onto the elevating bottle stand of the filling machine in the same way as in the case of bottles, first removes the seal member of the outer cylinder while the bottle stand is being raised. hits the centering bell, and then rises while compressing the spring between the main body and the outer cylinder, and the sealing member and the centering bell are tightly sealed, and the first ball held in the main body is released into the vent tube. When the bottle base reaches the engaging part and further rises, the inner cylinder hits the rising stop part of the outer cylinder, and when the main body further rises, the first ball is pushed inward by the pressing part of the engaging part of the inner cylinder. When the concave portion of the inner tube reaches the position where it engages with the engaging portion of the vent tube, the concave portion of the inner cylinder becomes a position corresponding to the second ball held in the main body, and the presser member is raised by the spring, and the same The second ball is pressed and housed in the same concave portion of the inner cylinder to position the inner cylinder.

The filling machine rotates in this state, and the bottle stand eventually descends, but the cleaning jig has a first ball held in the main body that engages with an engaging part provided on the vent tube of the filling valve. It is held suspended from the vent tube. As described above, the cleaning jig can be automatically attached to the filling valve, and since the cleaning jig is mechanically attached and held, it is not affected by the pressure after cleaning, etc. The fear of falling off can be eliminated. An embodiment of the present invention will be described above with reference to FIGS. 5 to 8.

Reference numeral 100 indicates a cleaning jig, and reference numeral 60 denotes its main body, which is hollow at the top and has a cleaning liquid hole 60a1 and a ball holding hole 6.
0b, 60c and a protrusion 60d.

61 is a spring 6 interposed between the main body 60 and the main body 60;
2, and has a notch 61a at the bottom and a protrusion 61b at the top, and is normally positioned by the protrusion 60d of the main body 60.

63 is a spring 6 interposed between the inner cylinder 61 and the main body 60.
The outer cylinder is fitted and supported so as to be vertically slidable via the inner cylinder 61, and has a protrusion 63a for stopping the rise of the inner cylinder 61, and is normally positioned by the main body 60.

Reference numeral 65 denotes a ball pressing member fitted and supported on the lower outer periphery of the main body 60 so as to be slidable up and down via a spring 66 interposed between the main body 60, and is used for a ball pressing surface 65a and a ball pressing member to be described later. It has an engaging surface 65b that engages with the cam 76, and is normally positioned at the lowered position where the spring is compressed.

Balls 67 and 68 are fitted and held in the holes 60b and 60c of the main body 60, and 69 is a sealing member attached to the upper end of the outer cylinder 63, thus configuring the cleaning jig 100.

Further, in FIGS. 7 and 8, 70 is a filling valve, which is provided with a vent tube 71 having a vent hole 71b and a stepped portion 71a.

72 is a vent tube 71 by means not shown.
a centering bell guided so as to be movable up and down; 7
Reference numeral 3 denotes a cleaning liquid circulation hole provided in the filling valve 70, which forms a cleaning liquid circulation path by a pump (not shown), a cleaning liquid tank, and a filler bowl 74.

Reference numeral 75 indicates a lifting bottle stand corresponding to the filling valve 70.

Furthermore, in FIG. 6, 77 is a bottle feeding conveyor, 78 is an indexing screw, 79 is a bottle feeding star wheel, 80 is a filling machine, 81 is a bottle discharging star wheel, 76 is a cam for the ball pressing member 65, Always ball holding member 6
5 has changed to a position where it does not engage.

In the above configuration, after the filling operation is completed and the liquid in the filler bowl 74 is collected into a tank (not shown), the cleaning liquid is fully supplied into the filler bowl 74 from the cleaning tank (not shown) via a pump.

On the other hand, the number of cleaning jigs 1 corresponding to the number of filling valves 70
00 from the bottle conveyor 77, an indexing screw 78,
The bottle is fed onto the elevating bottle stand 75 via the bottle feed star wheel 79. The lifting bottle stand 75 rises and the cleaning jig 100
When the cleaning jig 100 and the centering bell 72 are lifted up, the sealing member 69 of the outer cylinder 63 hits the centering bell 72, and the cleaning jig 100 and the centering bell 72 rise together, and the centering bell 72
The upper end corresponds to the lower end of the filling valve 70. Elevating bottle stand 7
5 rises, the main body 60 continues to compress the spring 64, so the sealing member 69 and the centering bell 72 rise while maintaining their close contact, and the stepped portion 7 of the vent tube 71
1a, the ball 67 is in the upper position. Then, when the elevating bottle stand 75 continues to rise, the protrusion 63 of the outer cylinder 63
In order to suppress the rise of the inner cylinder 61 by the spring 62, the ball 67 engages with the protrusion 61b and the ball 67
At the same time, the ball 68 pressed by the ball presser member 651 fits into the notch 61a of the inner cylinder 61 to position the inner cylinder 61, and at the same time, the ball presser 65 is pushed into the seventh position by the spring 66. Move upward as shown. Note that the lifting bottle stand 75 stops rising when the main body 60 and the outer cylinder 63 come into contact with each other. This state is in the range shown in part A in FIG. 6, and when the cleaning jig 100 reaches the range in part B due to continued operation of the filling machine, the elevating bottle table 75 descends, and the main body 60 etc. also descend slightly. The ball 67 engages with the stepped portion 71a of the vent tube 71, and the cleaning jig 100 is suspended from the vent tube 71 via the ball 67.

That is, in part B, even after the lifting bottle stand 75 is separated from the cleaning jig 100, the ball 68 mechanically maintains the state shown in FIG. 8. On the other hand, the cleaning liquid is supplied from the cleaning liquid tank by opening the air valve of the filling valve 70 (not shown) and introducing the cleaning liquid into the cleaning jig through the vent hole 71b to open the liquid valve in the same way as in normal bottling operations. After passing through the filler bowl 74, some air valves and vent tubes 71
, cleaning jig 100, hole 73, and the other part flows through the liquid valve, cleaning jig 100, hole 73, passes through the pump, and circulates in the circulation circuit leading to the cleaning liquid tank again, and the filling valve and filler. Clean the inside of the bowl.

In addition, during normal filling work, at the X position in Fig. 6,
Although the communication between the filler bowl 74 and the filling valve 70 is closed, the communication is maintained during cleaning of the filling valve.

Further, the cleaning jig 100 is attached to the filling valve 70 when passing between the supply/discharge bottle star wheels 79 and 81.
It is assumed that the line passes above the supply/discharge bottle star wheels 79 and 81. Furthermore, when the cleaning work is completed and the cleaning jig is removed, the ball pressing member cam 76 is moved to the engagement position with the ball pressing member 65 by means not shown, and as the filling machine rotates. When the ball presser member cam 76 and the engagement surface 65b of the ball presser member 65 engage, the ball presser member 65 is pushed down against the spring 66 and reaches part B, the lifting bottle stand 75 is lowered and the spring 64 returns to its original state, the inner cylinder 61 and main body 60 are pushed down as one, and the ball 67 and the stepped portion 71d of the vent tube 71 engage, but the ball 68
Since no pressing force is acting on the inner cylinder 61, the spring 62 pushes up the inner cylinder 61, the ball 68 separates from the notch 61a, and the engagement between the ball 67 and the protrusion 61b is released.
As the elevating bottle table 75 continues to descend, the ball 67 is pushed out toward the inner cylinder 61 by the vent tube 71, and the outer cylinder 63 is pushed down by the main body 60, and the centering bell 72 and the filling valve are disengaged. The engagement between the sealing member 69 and the centering bell 72 is released, and the cleaning device 100 is discharged to the outside of the filling machine 80 by the bottle discharge star wheel 81.

As described above, according to this embodiment, the vent tube of the filling valve is provided with a stepped portion, and this is used to mechanically automatically clamp the cleaning jig to the filling valve. It can be washed without being affected by pressure and completely prevents it from falling off.

In section B, the cleaning device is suspended from the vent tube due to its own weight, the liquid valve is closed, and the cleaning circuit for the filling valve is limited to the vent tube system, which is particularly effective for cleaning the inside of the vent tube.

Furthermore, it is possible to achieve practical effects such as being able to extremely easily discharge the cleaning jig after the cleaning operation is completed.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of the conventional one, Figure 2 is the line XX in Figure 1.
Cross-sectional view, Figure 3 is an explanatory diagram of how it is attached to the filling valve, Figure 4
5 is a sectional view showing an embodiment of the present invention, FIG. 6 is a plan layout of the filling machine, and FIG.
This figure and FIG. 8 are explanatory diagrams of the state in which the cleaning jig is attached to the filling valve within the area A and B of FIG. 6. 60... Main body, 61... Inner cylinder, 61a... Notch (
recess), 61b... protrusion (pressing part), 62... spring, 63... outer cylinder, 63a... protrusion (rise stop part),
64... Spring, 65... Ball pressing member, 65a.
...Ball holding surface, 66...Spring, 67, 68...
Ball, 69...Sealing member, 70...Filling valve, 71...Bent tube, 71a...Step part (engaging part), 72...Centering bell, 75...Elevating bottle stand, 76...Cam, 80...Filling machine, 100...
・Cleaning jig.

Claims (1)

[Claims] 1 A first ball that engages with an engaging part provided on the vent tube of the filling valve and a second ball that clamps the inner cylinder.
a main body holding a ball; the first main body is slidably fitted and supported via a spring interposed between the first
an inner cylinder having an engaging part consisting of a recess for storing the first ball and a pressing part for pressing the first ball inward, and a recess for storing the second ball, between the inner cylinder and the main body; an outer cylinder that is slidably fitted and supported via a spring inserted in the main body and has a rise stop part that stops the rise of the inner cylinder, and a seal member that comes into close contact with a centering bell of the filling valve; A jig for cleaning a filling valve, comprising a holding member slidably fitted and supported via a spring interposed between the holding member and capable of pressing the second ball into the recess of the inner cylinder.