JPH0223436B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a plunger cleaning device for a rotary sealing machine.

The plunger cleaning device of a conventional rotary sealing machine will be explained with reference to FIGS. The slider 2 is provided with a crown supply port 2b, a shoulder portion 2c, and a centering portion 2d. 3 is the slider 2 via the shoulder 3a
The stopper head, which is slidably held in the bottle, acts to press the crown against the bottle mouth. Note that the capper head 3 is provided with a cleaning liquid passage 3b as shown in the figure. 4 and 5 are springs, which push down the capping head 3 and the slider 2, respectively. A rotating body 6 is rotatably held by a fixed shaft 12 shown in FIG. 3, and a plurality of plugging plungers 10 are slidably held at equidistant positions in the circumferential direction of the rotating body. 7 is a roller, and the roller 7 is provided at the upper part of a head cylinder 8 which integrally holds a plurality of pins 21 at the lower part. Reference numeral 9 designates a single capping cam on the fixed shaft 12 in FIG. It's summery. Reference numeral 20 denotes a cleaning cap which has a bayonet groove 20a shown in FIG. A cleaning liquid passage 20b connected to the cleaning liquid passage 3b provided in the head cylinder 3 through a gasket 22 and a recessed space 20c into which the lower part of the slider 2 is loosely fitted are formed. It is designed to be sealed. Also aisle 20
b and space 20c, tube joints 24 and 2
5, tubes 26 and 27 are connected to a lower area 28a and an upper area 28b of a manifold 28, as shown in FIG. Furthermore, in the rotating body 6,
lower and upper areas 28a of manifold 28,
28b is provided with cleaning liquid passages 6a and 6b that are connected to each other via tubes 26 and 37, and these passages are connected to grooves 29a and 29b that are liquid-sealed to the inner circumferential wall of the fixed frame 29 through φ rings, and are further connected to the grooves 2
Tubes 30 and 31 are connected to the tubes 9a and 29b, and a cleaning liquid heating device 33, a pump 34, and a cleaning liquid tank 35 are provided between the ends of the tubes 30 and 31, so that the cleaning liquid 40 is circulated and supplied. ing. A bottle filled with liquid (not shown)
is supplied onto the rotating body 6 directly below the capping plunger 10, and when the rotating body 6 is rotated with the crown (not shown) being supplied, the engagement between the roller 7 and the cam groove 9a occurs. The plugging plunger 10 descends, and first, the centering portion 2d of the slider 2
The bottle is centered and then the mouth of the bottle is crowned. When the capping plunger 10 further descends, the capping head 3 hits the crown and stops descending, and as the capping plunger 10 continues to descend, the throat 1 descends, and the folds of the crown are pressed against the throat 1 by the force of the spring 5. When the shoulder 3a of the capping head 3 comes into contact with the shoulder 2c of the slider 2, the slider 2 stops descending even if the head cylinder 8 descends, and the crown Squeezing, that is, corking is completed. After capping, the capping plunger 10 is raised to discharge the bottle. After the operation of the rotary sealing machine described above is completed, a cleaning operation is performed. At this time, first, the cleaning caps 20 are attached to all of the plurality of capping plungers 10 by engaging the pins 21 and the bayonet grooves 20a. Afterwards, the tubes 26 and 27 are connected to the manifold 28. Next, the tank 35 is filled with the cleaning liquid 40, and the pump 34 is started to circulate the cleaning liquid in the tank 35 while the stoppering device is running idly. At this time, the cleaning liquid discharged from the pump 34 is heated by the heating device 33, enters the lower area 28a of the manifold 28 via the tube 30 groove 29a passage 6a tube 36, and is distributed from there to the tube 26 to each cap 20. , into the cap 20 via the joint 24. The cleaning liquid that has flowed into the cap 20 enters the passage 3b in the cap head 3 through the passage 20b, flows through the slider 2 and the throat 1, enters the recessed space 20c of the cap 20 from the lower part of the slider 2, and flows into the tube 27 manifold. Returns to tank 35 via upper area 28b tube 37 passage 6b groove 29b tube 31 of 28. After the cleaning operation is completed by circulating the system for a certain period of time, the cleaning liquid is recovered, the cap 20 is removed, and the system is prepared for the next operation.

The above is a conventional example in which the rotary sealing machine is operated to clean the capping plunger, but a conventional example in which the capping plunger is cleaned without operating the rotary sealing machine will be explained with reference to Figures 4 and 5. In the case of the example, a drain hole 20d is provided in the cap 20A, and a drain pan 50 is placed on the rotating body 6 to receive the cleaning liquid discharged from the drain hole 20d, and the drain pan 50 is connected to the tank 35 via the tube 31. Return the cleaning solution. In this case, the rotary sealing machine is not operated, and the cleaning liquid is circulated by starting the pump 34 to clean the required portions of the plugging plunger.

The plunger cleaning device shown in FIGS. 1 to 3,
In the plunger cleaning apparatus shown in FIGS. 4 and 5, the cleaning liquid flows continuously in a constant direction and at a constant speed when cleaning the plugging plunger, so that the plunger cleaning effect is low. In addition, in the case of Figures 1 to 3, in which the rotary sealing machine is operated to clean the capping plunger, a rotary joint with a complicated structure must be installed in the upper or lower part, which increases costs. There was a problem.

The present invention addresses the above-mentioned problems, and includes providing a number of cleaning liquid supply holes corresponding to the number of sealing plungers on the circumference of a disk integrated with the rotating body, and attaching the cleaning liquid supply holes to the sealing plungers. The cleaning cap is connected to the cleaning liquid supply piping on the rotation side, has an arc-shaped cleaning liquid supply groove communicating with the cleaning liquid supply hole, and is in fluid-tight and slidable contact with the lower surface of the disk so as to be stationary as described below. A non-rotating plate that intermittently connects the cleaning liquid supply piping on the side and the cleaning liquid supply piping on the rotating side is installed directly below the disk, and connects the cleaning liquid tank, cleaning liquid pump, cleaning liquid heating device, and cleaning liquid supply inside the plate. The groove is connected to the cleaning liquid supply piping on the stationary side, and is connected to the sealing plunger through the cleaning liquid supply piping on the stationary side, the cleaning liquid supply groove in the plate, the cleaning liquid supply hole in the disk, and the cleaning liquid supply piping on the rotating side. A non-rotating drain pan that receives the cleaning liquid after cleaning the inside thereof is installed below the sealed plunger, and the drain pan and the cleaning liquid tank are connected by a cleaning liquid discharge pipe on the stationary side. The present invention relates to a plunger cleaning device for a type sealing machine, and its purpose is to improve the plunger cleaning effect. Cost can be reduced. The non-rotating side can be easily attached to and removed from the rotating side. Another object of the present invention is to provide an improved plunger cleaning device for a rotary sealing machine that can maintain a seal between the non-rotating side and the rotating side for a long period of time.

Next, the plunger cleaning device for a rotary sealing machine of the present invention will be explained with reference to an embodiment shown in FIGS. 6, 7, and 8.
Reference numerals 5, 40, and 50 are the same parts as above, and 60 is a disk integrated with the rotating body 6. The disk 60 has the same number of cleaning liquid supply holes 60a as the cleaning caps 20a attached to the plugging plunger 10 on the circumference. The holes are drilled at equal intervals in the direction. Reference numeral 61 denotes an elbow built into the upper part of the cleaning liquid supply hole 60a of the disc 60, and the elbow 61 is connected to the cap 20A via a tube 62. Reference numeral 63 denotes a fan-shaped plate, which has an arc-shaped cleaning liquid supply groove 63a communicating with the cleaning liquid supply hole 60a of the disk 60 and a cleaning liquid supply hole 63b, as shown in FIG. 63c is a sliding surface that comes into fluid-tight and slidable contact with the lower surface of the disc 60. A boss 64 is integral with the fan-shaped plate 63, is slidably fitted into the bracket 66, and is urged upward by a spring 65. The boss 64 has a cleaning liquid supply hole 64a. 64
b is an O-ring, 67 is a tube joint incorporated in the lower part of the supply hole 64a of the boss 64, 68 and 69 are tubes, and 70 is a bracket for holding the drain pan 50.

Next, the operation of the plunger cleaning device of the rotary sealing machine will be explained. When the operation of the rotary sealing machine is completed, cleaning work is carried out. At this time, first, all of the plurality of plugging plungers 10 are filled with cleaning caps 20.
After installing A, connect it to the elbow 61 with a tube 62. Next, the tank 35 is filled with the cleaning liquid 40, and while the rotary sealing machine is running idly,
The pump 34 is activated to circulate the cleaning liquid 40 in the tank 35. At this time, the cleaning liquid 40 discharged from the pump 34 is heated by the heating device 33 and passes through the cleaning liquid supply hole 64a of the tube 68, the tube joint 67, the boss 64, the cleaning liquid supply hole 63b of the sector plate 63, the groove 63a, and the cleaning liquid supply hole of the disk 60. 60a, where it is divided and flows through the elbow 61 tube 62 into the cleaning cap 20A. Also, the cleaning liquid 40 that has flowed into the cap 20A
enters the passage 3b in the capping head 3 through the passage 20b, flows through the slider 2 and the throat 1, and flows from the lower part of the slider 2 into the recessed space 2 of the cap 20A.
It enters the drain pan 50 via 0C, and then returns to the tank 35 via the tube 69. After circulating in the above-mentioned system for a certain period of time, the cleaning liquid is recovered, and the cap 20A is removed to prepare for the next operation.

The plunger cleaning device for a rotary sealing machine according to the present invention is configured as described above, and includes (i) a rotating body 6, a disk 60, and each sealing plunger 10;
At the same time, the non-rotating plate 63 is brought into fluid-tight and sliding contact with the lower surface of the disk 60 to connect the cleaning liquid tank 35 → cleaning liquid pump 34 → cleaning liquid supply piping on the cleaning liquid heating device 33 side (stationary side). The high-pressure cleaning liquid from the cleaning liquid pump 34 is intermittently connected to the cleaning liquid supply pipe (cleaning liquid supply pipe) 68 on each sealing plunger 10 side (the cleaning liquid supply pipe on the rotating side) 62 to intermittently supply the high-pressure cleaning liquid from the cleaning liquid pump 34 into each sealing plunger 10. Since the inside of each sealing plunger 10 can be forcibly and thoroughly cleaned, the cleaning effect can be improved.

(ii) Since no cleaning liquid passage is provided in the sealing machine main body such as the rotating body 6, the bearings, which are heavy parts of the sealing machine main body, are not affected by the temperature rise caused by the cleaning liquid.

(iii) The non-rotating plate 63 is connected to the disk 60 of the rotating body 6.
It is in fluid-tight and slidable contact with the lower surface, which eliminates the need for a rotary joint with a complicated structure, which simplifies the structure and reduces manufacturing costs. It can be easily installed and removed.

(iv) Disc 60 on the rotating side and plate 63 on the non-rotating side
Even if the sliding surface of the plate 63 is worn out, it can be absorbed by urging the plate 63 toward the disk 60, and this has the effect of maintaining the seal between them for a long period of time.

Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that various design modifications can be made without departing from the spirit of the present invention. .

[Brief explanation of drawings]

Fig. 1 is a vertical side view showing an example of a plunger cleaning device of a conventional rotary sealing machine, Fig. 2 is a perspective view showing the cleaning cap portion thereof, Fig. 3 is a longitudinal side view showing the entire device, and Fig. 4 The figures are a longitudinal side view showing another conventional example, a longitudinal side view showing the cleaning cap portion of Fig. 5, and a longitudinal side view showing an embodiment of the plunger cleaning device for a rotary sealing machine according to the present invention. 7 is a perspective view showing the plate portion, and FIG. 8 is a plan view of the whole. 6...Rotating body, 10...Sealing plunger, 50
...Drain pan, 60...Disk, 60a...Cleaning liquid supply hole, 62...Piping, 63...Plate, 6
3a...Cleaning liquid supply groove.

Claims (1)

[Claims] 1. A number of cleaning liquid supply holes corresponding to the number of sealing plungers are provided on the circumference of a disk integrated with the rotating body, and the cleaning liquid supply holes and the cleaning cap attached to the sealing plunger are connected from the cleaning liquid supply piping on the rotating side. It has an arc-shaped cleaning liquid supply groove connected to the cleaning liquid supply hole and communicates with the cleaning liquid supply hole, and is in fluid-tight and slidable contact with the lower surface of the disk to connect the cleaning liquid supply piping on the stationary side and the cleaning liquid supply piping on the rotating side to be described later. A non-rotating plate that is intermittently connected to the piping is installed directly below the disc, and the cleaning liquid tank, cleaning liquid pump, cleaning liquid heating device, and cleaning liquid supply groove in the plate are connected by the cleaning liquid supply piping on the stationary side. , the cleaning liquid is supplied to the sealing plunger through the cleaning liquid supply pipe on the stationary side, the cleaning liquid supply groove in the plate, the cleaning liquid supply hole in the disk, and the cleaning liquid supply piping on the rotating side to clean the inside thereof. A plunger cleaning device for a rotary sealing machine, characterized in that a non-rotating drain pan for receiving the sealing plunger is installed below the sealing plunger, and the drain pan and the cleaning liquid tank are connected by a cleaning liquid discharge pipe on a stationary side.