JP2742559B2 - Method and apparatus for cleaning container sealing surface - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for removing adhering substances adhering to a sealing surface of a container having a circular shape, in which the contents are continuously supplied and having a circular opening, particularly a canning container. The present invention relates to a method for cleaning a container seal surface which can be sequentially and efficiently removed, and an apparatus for performing the method.

[Conventional technology]

There are various containers such as canned containers and cups for jams and the like, which are sealed after filling the contents from a circular opening extending over the entire upper end of the container. In the work of filling the contents of these containers, if the filling shape and the specifications of the filling do not match, the filling state may be changed manually etc., as a result, the opening of the container Some of the contents (hereinafter referred to as dirt) may adhere to the peripheral sealing surface. If sealing is performed in such a state, dirt is interposed between the container and the lid, resulting in incomplete sealing. Therefore, such dirt must be sufficiently removed before sealing with the lid. In particular, in the case of canned containers intended for long-term storage, the effects of such imperfect sealing due to such dirt are remarkable, so that careful removal of this dirt is required regardless of whether it is made of metal or plastic. However, in the case of a plastic container in which the sealing surface is heat-sealed, stricter removal of dirt is required.

Conventionally, there is no special method or device for removing dirt attached to the sealing surface of such a container, and in the case of a canned container, etc., select a dirt-attached one and manually use a clean cloth or the like. He was carefully wiping them one by one. However, such a method is not only inefficient, but also
There are drawbacks such as inadvertent or fatigue, oversight of dirt and incomplete removal of dirt.

[Problems to be solved by the invention]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned drawbacks of the prior art and to make it possible to efficiently remove dirt from a container sealing surface without overlooking dirt or incomplete dirt removal.

[Means for solving the problem]

The present inventors have conducted various studies and found that, while circulating a mounting table on which a container can be mounted and sequentially moving the container into the mounting table and moving the container along with the mounting table, the container moves in synchronization with the mounting table immediately above the container. Lowering the cleaning unit to be moved, and moving a plurality of cleaning spats attached to the cleaning unit along the periphery of the opening of the container to remove dirt on the sealing surface,
Thereafter, the cleaning unit is lifted, the container is taken out of the mounting table, and the cleaning spatula is washed in the spatula cleaning tank, and then the cleaning unit is returned to the original position, or an apparatus configured to be suitable for performing this method. As a result, the present inventors have determined that the above problems can be solved and completed the present invention.

Hereinafter, a method and apparatus for cleaning a container sealing surface according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a longitudinal sectional view of an essential part of an embodiment of a container sealing surface cleaning apparatus according to the present invention, and FIG.
FIG. 3 is a plan view of the cleaning unit used in the apparatus shown in FIG. 1 in an enlarged plan view, and FIG.
FIG. 5 is an enlarged perspective view showing the mounting state of one cleaning spatula in FIG. 3 as viewed obliquely from below, FIG. 5 is a plan view showing the mounting angle of the cleaning spatula, and FIG. 6 is FIG. (A) is a bottom view of an upper rotating member and (b) is an explanatory view of a main part of a pressure reducing source intermittent mechanism used in the apparatus shown in FIG.
Is a plan view of the lower member, FIG. 7 is a sectional view taken along the line BB of the spatula cleaning tank used in the apparatus shown in FIG. 2, and FIG. 8 is an explanatory view showing a state where the container is cleaned. It is.

The object to be cleaned in the present invention is, for example, a container having an opening at the upper end over its entire surface as shown in FIG. 8 and having a circular opening and a circular sealing surface 1a at the periphery. It is one. If the opening is circular and thus the sealing surface 1a is circular, the body need not necessarily have the same cross-sectional shape. The container 1 shown in FIG. 8 is a plastic canned container. In this case, the sealing surface 1a is a slightly widened end surface of the container wall forming the opening, but in the case of a metal canned container. The seal surface 1a for double winding together with the lid is formed in an annular shape with a certain width outward from the upper end of the container wall. In addition, bottles and the like for bottling can also be targeted.

In the method of the present invention, first, the container 1 as described above is sequentially fed onto a circulating mounting table at a constant interval, and is moved while being immovably held on the mounting table surface.

Hereinafter, an apparatus for easily implementing the method of the present invention, which will be described sequentially, will be described in parallel.

In the apparatus of the present invention, a container mounting plate which is fixed to a base shaft rotatably mounted around a main support and used as a component of the circulating mounting table is used. First
As shown in FIG. 2 and FIG. 2, a plurality of mounting tables 3 on which the containers 1 are mounted are arranged on the same horizontal circumference at the same distance from the center of the base shaft 4 at constant intervals. It is integrated into a board-like body, and a suction hole 3a for adsorbing the bottom of the placed container 1 is opened at a substantially central portion of the mounting table 3. The container mounting board 2 is fixed to a base shaft 4 having the same axis as that of the board-like body, and each mounting table 3 is located on a horizontal projection plane on which the center of the mounting table 3 moves as shown in FIG. It circulates sequentially through the container feeding position I, the cleaning section II, the container sending position III, and the spatula cleaning section IV set on the circular orbit. The suction hole 3a of the mounting table 3 is connected to a reduced pressure source via a reduced pressure source intermittent mechanism described later, and when in a suction state while passing through the cleaning section II, the suction hole 3a sucks the bottom of the mounted container 1. One end of the role of holding the container 1 immovably. At least the surface layer of the mounting table 3 is preferably a rubber plate 3b as shown in FIG. 8 in order to effectively suction the bottom of the container 1. Although the entire shape of the container mounting table 2 is plate-like in the illustrated example, it is not always necessary. For example, a portion other than the mounting table 3 may be a structure including a framework.

Since it is difficult to hold the container 1 immovably during the cleaning operation only by sucking the bottom of the container 1 placed on the mounting table 3, the apparatus of the present invention uses the container mounting board 2 as shown in FIGS. The holding portion 5a, which is located above each mounting table 3 and in which the peripheral wall on the base shaft 4 side of the container 1 mounted on the mounting table 3 is substantially fitted, is integrated and fixed to the base shaft 4 to mount the container. A main retlet 5 that rotates horizontally in synchronization with the board 2 is provided. However, since the holding portion 5a of the main turret 5 has to take a shape in which the body of the container 1 can freely enter and leave, the container 1 fitted to the holding portion 5a easily escapes as it is. Container 1 between the main part 5 and the holding part 5a in order to prevent
As shown in FIG. 2, a container guiding guide 6 is fixed to the outside along the outer periphery of the main pallet 5 from the container feeding position 1 to the container sending position III via the cleaning section II. The shape of the holding portion 5a of the main turret 5 is substantially semicircular in the illustrated example, but it is not always necessary. The body of the container 1 is free to enter and exit, and the container 1 is held between the container guiding guide 6 and the container. What is necessary is just to hold.
Also, the overall shape of the main turret 5 is a shape in which the holding portion 5a is formed on the periphery of the disk in the illustrated example, but is not necessarily required. It may have a structure integrated by a structure composed of a skeleton or the like.

In the method of the present invention, as described above, when the container 1 is started to move on the mounting table 3 at fixed intervals while being immovably held, a plurality of plate-shaped flexible The cleaning unit having a spatula rotating body, which is formed by downwardly attaching a spatula for cleaning and has a spatula rotating body, is positioned immediately above each container 1 on the mounting table 3 and is moved in synchronization with the container 1 and lowered. Cleaning is performed by slightly pressing the lower edge of each cleaning spatula in a state of intersecting with the sealing surface 1a of the container 1 and then lifting the cleaning unit to release the holding on the surface of the mounting table 3 to release the container. Take 1 out of the mounting table 3
The raised cleaning unit is lowered while continuing to move to a spatula cleaning tank in which water flows, and is temporarily raised to clean the cleaning spatula, and then returned to the initial position where the container 1 is fed onto the mounting table 3. It is. Then, all the steps described above starting to be sent to the mounting table 3 of the container 1 are repeated.

In order to implement the method of cleaning while moving the cleaning unit and the container 1 synchronously as described above with a simple mechanism, the apparatus of the present invention is provided with the cleaning head 7 having the following structure. I have.

As shown in FIG. 1, first, at a position above the main turret 5, a position where the same number of cleaning units 9 as the mounting tables 3 are opposed to the mounting tables 3 is mounted on the substrate 8 fixed to the base shaft 4 and rotating horizontally. Is mounted so that it can move up and down. In the illustrated example, a guide tube 8a is provided at a predetermined position on the substrate 8 so as to maintain the posture when the cleaning unit 9 moves vertically, and the cleaning unit 9 penetrates the guide tube 8a so as to be vertically movable. The cleaning unit is moved up and down by a cleaning unit vertically moving mechanism 15 described later.

The cleaning unit 9 has a spatula rotating body 10 continuously rotated on the lower surface side. This spatula rotating body 10
As shown in FIG. 8, a horizontal plate 12 which is fixed to a rotating body 11 having an axis at the same position as the center line of the container 1 when the container 1 is mounted on the mounting table 3 and rotates horizontally. A sealing surface of a container 1 on which a plurality of plate-shaped flexible cleaning spatula 13 is mounted on the mounting table 3 as shown in FIG.
It is attached so as to intersect with 1a on the horizontal projection plane. As shown in FIG. 3, a specific example of the spatula rotating body 10 is a horizontal plate 12 formed in a zigzag shape with its periphery coming into and out of the sealing surface 1a of the container 1 mounted on the mounting table 3 on the horizontal projection surface. And the zigzag sides 12a and 12a as shown in FIG.
With the cleaning spatula 13 in contact with the side surface of b, the spatula is attached by the spatula attaching screw 14. At this time, as shown in FIG. 4, the lower edge of the cleaning spatula 13 includes a portion intersecting with the sealing surface 1a of the container 1 on the horizontal projection plane.
13a, the sealing surface of the container 1 is provided in the spatula groove 13a.
It is preferable because the upper end of the container including 1a can be fitted into the container so that dirt can be removed more reliably. In such a structure, dirt on the sealing surface 1a is removed to a selected side inside or outside the container 1 depending on the state of intersection between the cleaning spatula 13 and the sealing surface 1a of the container 1. As shown in the figure, the end 13b of the cleaning spatula 13 located outside the container 1 precedes the end 13c inside the container 1 in the traveling direction X (the cut line at the intersection of the circle formed by the sealing surface 1a). (If the angle θ is smaller than a right angle if this is expressed by the angle θ between the traveling direction X of the cleaning spatula 13 and the length direction Y of the cleaning spatula 13 as shown in FIG. 5), the contamination Is dropped in the direction of arrow Z along the side surface of the cleaning spatula 13, that is, into the container 1. In the case of the intersection state opposite to the above (θ is larger than a right angle), dirt is removed outside the container 1. Since the dirt on the sealing surface 1a of the container 1 is the same as that of the filling, in order to reduce the loss of the filling,
At the same time, the crossing state between the cleaning spatula 13 and the sealing surface 1a is preferably the former in order not to require any other dirt wiping operation.

The cleaning unit vertically moving mechanism 15 for vertically moving each cleaning unit 9 having the above-described structure is arranged such that each cleaning unit 9 sequentially passes through the container feeding position I on the horizontal projection plane shown in FIG. Then, as it moves on the circular orbit, the cleaning unit 9 is moved up and down as follows. First, at the container feeding position I, the cleaning spatula 13 is lowered to a predetermined height at which the lower edge of the cleaning spatula 13 slightly contacts the sealing surface 1a of the container 1 on the mounting table 3. Since it takes some time from the start of the descent to the contact, the descent may be started immediately before the container feeding position I. However, at least at the time of the contact, it is set to be after the container feeding position I. In this way, when the cleaning section II is lowered to the predetermined height, the predetermined cleaning section II is moved at the same height, and after the cleaning section II, the container delivery position II is completed.
The cleaning unit 9 is raised before reaching I.
The cleaning unit 9 moves the container 1 at the container delivery position III.
It is necessary to be away from the container 1 at the time when the cleaning unit 9 is removed from the mounting table 3, and it takes a little time for the cleaning unit 9 to rise. is there. Next, the main part of the spatula cleaning section IV is moved by lowering to a predetermined height at which the cleaning spatula 13 is cleaned (a height at which the cleaning spatula 13 is cleaned in the spatula cleaning tank 35 described later). After that, raise again and return to the original height. As a specific example of the structure of the cleaning unit vertical movement mechanism 15 for vertically moving the cleaning unit 9 as described above, an apparatus shown in FIG. 1, that is, an immovable main support 16 fixed to a base 25 (the base shaft 4 in the illustrated example). A guide body 18 having an annular guide groove 18a is fixed around the periphery of the guide cylinder 17 which holds the rotating shaft 11 rotatably. Since the provided guide roller 17a is engaged with the guide groove 18a, the cleaning spatula 13 of the cleaning unit 9 is rotated around the main support 16 by the rotation of the base shaft 4 by the substrate 8, so that the guide groove 18 is rotated.
It can be moved up and down along the shape of a. Since the gear 11a provided above the rotary shaft 11 is engaged with the gear 19 having a long tooth width fixed around the main support 16, the cleaning unit 9 which moves up and down as described above is used. When the rotation shaft 11 rotates around the main support 16 by the rotation of the base shaft 4 by the substrate 8, it rotates on its own.

In the apparatus of the present invention, the bottom of the container 1 placed on the mounting table 3 of the container mounting board 2 is adsorbed to the mounting table 3 in the cleaning section II (adsorption may be performed at the container feeding position I, In order to prevent the container 1 from being lowered, the suction is preferably performed immediately after the container 1 is moved to the container feeding position I where the container 1 is secured to the mounting table 3) At least the container sending position III
In the cleaning section IV, in order to release from the suction state, as the mounting table 3 advances on the circular orbit, the suction holes opened in the mounting table 3 corresponding to the suction and release as described above.
A decompression source intermittent mechanism 20 is provided for intermittently connecting 3a to the decompression source to bring the pressure to a reduced pressure state or to restore the pressure to normal pressure. The specific examples shown in FIGS. 1 and 6 will be described. As shown in FIG. 1, an annular upper rotating member 21 is fixed to the base shaft 4, and an annular lower member 22 that abuts on the bottom surface and the upper surface of the upper rotating member 21 and slides in an airtight manner is a support member 23. , So that it cannot rotate. The upper rotating member 21 has the same number of holes 21a as the mounting table 3 at equal intervals.
a and open on the same circumference of the sliding surface as shown in FIG. In the sliding surface of the lower member 22, annular grooves 22a and 22b are provided with the same radius as the circumference on which the openings of the holes 21a of the upper rotating member 21 are arranged as shown in FIG. The annular grooves 22a and 22b correspond to a section in which the suction hole 3a is depressurized and a section in which the suction hole 3a is restored to normal pressure when the mounting table 3 moves in a circular orbit, and the depressurizing grooves 22a and
2b, the pressure reducing groove 22a is connected to a pressure reducing source (not shown) by a pressure reducing pipe 22c, and the normal pressure groove 22b is open to the atmosphere. Accordingly, when the upper rotating member 21 rotates together with the container mounting board 2 by using the common base shaft 4, the suction hole 3 a of the mounting table 3 is opened by the opening of the hole 21 a of the upper rotating member 21 and the pressure of the lower member 22 is reduced. The surface sliding along with the groove 22a is in a reduced pressure state, and recovers to normal pressure while being combined with the normal pressure groove 22b.

The container mounting table 2 on which the mounting table 3 is provided, the substrate 8 on which the cleaning unit 9 is mounted, and the pressure source intermittent mechanism
It is natural that a rotary driving force transmitting mechanism for rotating the base shaft 4 to which the upper rotating member 21 of 20 is fixedly mounted is necessary, and in the illustrated apparatus, it is connected to a driving source as shown in FIG. The base shaft 4 is rotated via the gear train 24 to be rotated. The main shaft 4 is a main support 16 fixed to a base 25 in the illustrated example.
The base shaft 4 is rotatable because the thrust bearing 26 is mounted on the base thereof. The portion below the container mounting board 2 is preferably surrounded by a peripheral wall 27 as shown in FIG. 1, in which case it may be a case integrated with the base 25.

The apparatus of the present invention is provided with a carry-in conveyor 28 for carrying the container 1 to a position near the container mounting board 2. There are various existing devices for transporting the container 1 continuously transported on the carry-in conveyor 28 to the holding portion 5a of the main retlet 5 in a timely manner, for example, as shown in FIG. A timing spiral 29 is shown. In order to hold the container 1 carried in by the carry-in conveyor 28 and send it to the mounting table 3 of the container mounting board 2, the holding unit 30 a is provided at regular intervals on the same horizontal circumference. The feed turret 30 which rotates horizontally is installed as shown in FIG. 2 (the rotary drive source and the connection with it are not shown). The feed turret 30 in the illustrated example has a shape in which the periphery of the disk is cut off to form the holding portion 30a, but this is not always necessary, and generally, the holding portion 30a is formed independently.
May be integrated at regular intervals on the same horizontal circumference. The installation position is a position where the holding unit 30a holds the container 1 on the carry-in conveyor 28 when the feed turret 30 rotates horizontally, and releases the holding of the container 1 at the container feeding position I of the container mounting board 2. As a rotation timing, the holding unit 30a sequentially passes over the mounting table 3 in synchronization with the time when each mounting table 3 is sequentially positioned at the container feeding position I.

Also, an unloading conveyor 31 near the container mounting table 2 for unloading the container 1 coming through the cleaning section II,
As shown in FIG. 2, the discharge jar 32 having a holding portion 32a for holding the container 1 on the mounting table 3 and transferring the container 1 to the unloading conveyor 31 is symmetrical with the carry-in conveyor 28 and the feed jar 30 as shown in FIG. The structure, the installation position, and the rotation timing of the discharge turret 32 are the same as those of the feed turret 30 except for the difference between the sending and the sending. That is, the installation position is a position where each holding unit 32a holds the container 1 when the mounting table 3 of the container mounting board 2 is sequentially positioned at the container sending position III and releases the holding by the unloading conveyor 31,
As the rotation timing, the holder 32a sequentially passes over the mounting table 3 in synchronization with the time when each mounting table 3 is sequentially positioned at the container sending position III. Carry-in conveyor 28 and carry-out conveyor
31 may be a single continuous conveyor if possible depending on the specific arrangement of each member in the apparatus.

As shown in FIG. 2, along the outer periphery of the section for holding the container 1 of the feed turret 30 and the discharge turret 32, the holding portions 30a and 32a Container guiding guides 33 and 34 for preventing the held container 1 from escaping are provided.

In the cleaning section II, the spatula cleaning tank 35 for cleaning the sealing surface 1a of the container 1 and cleaning the dirty cleaning spatula 13 substantially corresponds to the spatula cleaning section IV on the horizontal projection plane as shown in FIG. At the position (although both sides in the spatula cleaning section IV may be removed from the installation place in relation to other members, the center part other than these both sides is always the installation place), and when viewed from the side, As shown in FIG. 1, it is supported below the substrate 8 by a support frame 36 and installed therein, in which water for cleaning the cleaning spatula 13 flows. As a specific example, in the spatula washing tank 35 shown in FIG. 7, washing water is supplied through a water supply valve 35a on the base shaft 4 side of the spatula washing tank 35, and overflows and drains on the opposite weir 35b. The bottom of the spatula cleaning tank 35 is a water supply valve 35a
It is inclined from the side to the weir 35b side, and the blow valve 35c is provided at the deepest part, and the end is combined with the overflow drain pipe (not shown), and the bottom sediment is discharged in a timely manner I'm going to do it. In the spatula cleaning tank 35 in the illustrated example, a cleaning brush 37 is further provided at an underwater position at a height at which the cleaning spatula 13 comes in contact with the spatula, thereby increasing the cleaning effect.

(Operation)

In the structure as described above, the container 1 filled with the contents is continuously conveyed on the carry-in conveyor 28, and the holding portion 30a of the rotating feed turret 30 whose feed interval is adjusted by the timing spiral 29 is adjusted. And container guidance guide 33
When it comes to the container feeding position I on the circular orbit while being held by the holding portion 30a while being held in between, it is mounted on the mounting table 3 which has just moved to that position. . Then, the container 1 is changed from the holding state up to that point, and is fitted between the holding portion 5a of the main turret 5 and the container guiding guide 6, so that the holding portion
5a, the suction port 3a of the mounting table 3 is depressurized by the operation of the decompression source intermittent mechanism 20, and the container 1 is moved in the cleaning section II while being held immovably. go. On the other hand, when the container 1 enters the cleaning section II, the cleaning unit 9 is lowered by the cleaning unit vertical movement mechanism 15, and the lower edge of the cleaning spatula 13 of the rotating spatula rotating body 10 is slightly sealed with the container 1. The surface 1a is brought into contact with the surface 1a, and the dirt (usually the same as the filler) on the sealing surface 1a is dropped into the container 1 or removed from the container 1 for cleaning. In this manner, when the end of the cleaning section II is approached, the cleaning unit 9 is lifted by the cleaning unit vertical movement mechanism 15 and separated from the container 1, and the container 1 is rotated.
The container 32 is moved from the mounting table 3 to the unloading conveyor 31 at the container delivery position III by the holding portion 32a of the container 32 and the container guiding guide 34. The cleaning unit 9 which has risen continues to move on the circular orbit and is lowered by the cleaning unit vertical movement mechanism 15 in the spatula cleaning section IV until the cleaning unit 9 is positioned in the spatula cleaning tank 35, and the cleaning is performed while rotating the spatula rotating body 10. The spatula 13 is immersed in a stream of water, and when a cleaning brush 37 is provided in the spatula cleaning tank 35, the cleaning brush 37 is brought into contact with the cleaning brush 37 to clean dirt. At the end of the spatula cleaning tank 35, the cleaning unit 9 rises again, descends after crossing the wall of the spatula cleaning tank 35, and returns to the initial position. This operation is repeated for each mounting table 3 and each cleaning unit 9.

〔The invention's effect〕

As described in detail above, the container sealing surface cleaning method and the apparatus for performing the method according to the present invention, while circulating a mounting table on which a container can be mounted, sequentially feed the containers into the mounting table and move the container together with the mounting table. The cleaning unit, which moves synchronously directly above the container in between, is lowered and the cleaning spatula attached to it is rotated to remove the dirt on the sealing surface, and then the container is taken out of the mounting table. A method for cleaning the entire number of containers by returning the cleaning unit to the original position after cleaning in the cleaning tank and repeating the above steps, and an apparatus configured so that this method can be easily carried out. No oversight of dirt or incomplete removal of dirt does not occur, and the dirt on the sealing surface of the container can be efficiently removed. The removal of dirt from the sealing surface of the container is complete because the cleaning spatula is cleaned many times with a large number of cleaning spats, and the cleaning spatula adhering to the dirt is rotated in the spatula cleaning tank. Since it is immersed in the cleaning solution, the dirt on the sealing surface of the container is removed after the dirt is completely removed.Especially for the purpose of long-term storage, canned containers, especially plastic cans whose sealing effect is reduced due to dirt. The reliability of long-term storage when producing canned products in containers for use can be greatly increased, and the industrial value thereof is extremely large.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an essential part of an embodiment of a container sealing surface cleaning apparatus according to the present invention, and FIG. 2 is a sectional view taken along a line AA in FIG.
FIG. 3 is a plan view of the cleaning unit used in the apparatus shown in FIG. 1 in an enlarged plan view, and FIG. FIG. 3 is an enlarged perspective view showing an attached state of one cleaning spatula viewed obliquely from below, FIG. 5 is an explanatory plan view relating to an attachment angle of the cleaning spatula, and FIG.
7 (a) is a bottom view of an upper rotating member, (b) is a plan view of a lower member, and FIG. 7 is FIG. 8 is a sectional view taken along the line BB of the spatula cleaning tank used in the apparatus shown in FIG. 8, and FIG. 8 is an explanatory view showing a state where the container is being cleaned. In the drawings, 1 ... container 1a ... sealing surface 2 ... container mounting board 3 ... mounting table 3a ... suction hole 3b ... rubber plate 4 ... base shaft 5 ... main retlet 5a ... holding unit 6 ... … Container guide 7… Cleaning head 8… Substrate 8a… Guide tube 9… Cleaning unit 10… Spatial rotating body 11… Rotating shaft 11a… Gear 12… Horizontal plates 12a, 12b… 13 ... Spatula for cleaning 13a ... Spatula groove 13b ... End located outside the container 13c ... End located inside the container 14 ... Screw for attachment of the spatula 15 ... Cleaning unit vertical movement mechanism 16 ... Main Supporting column 17… Guide cylinder 17a… Guide roller 18… Guide body 18a …… Guide groove 19 …… Gear 20 …… Pressure reduction intermittent mechanism 21 …… Upper rotating member 21a… Hole 22 …… Lower member 22a… … Decompression groove 22b …… normal pressure groove 22c …… decompression pipe 23 …… support 24 …… gear train 25 Base 26 Thrust bearing 27 Peripheral wall 28 Carry-in conveyor 29 Timing spiral 30a Feed turret 30a Holding part 31 Carry-out conveyor 32 Diary turret 32a … Holding part 33 …… Container guide 34 …… Container guide 35 …… Spatial washing tank 35a …… Water supply valve 35b …… Weir 35c …… Blow valve 36 …… Support frame 37 …… Cleaning brush I …… Container Sending position II: Cleaning section III: Container sending position IV: Spatula washing section X: Propagation direction of cleaning spatula Y: Length direction of cleaning spatula Z: Dirt moving direction θ: Angle between the direction of travel of the cleaning spatula and the length of the cleaning spatula

Claims (7)

(57) [Claims] In cleaning a sealing surface around a circular opening over the entire upper end of a container, containers are sequentially fed at regular intervals onto a circulating mounting table and moved while being immovably held on the mounting table. A plurality of plate-shaped flexible cleaning spats are attached to the periphery of a horizontal plate that rotates horizontally, and a cleaning unit having a spatula rotating body that is continuously rotated is mounted on each of the containers on the mounting table. The cleaning unit is moved directly in synchronization with the container, and the cleaning unit is lowered so that the lower edge of each cleaning spatula is slightly pressed against the sealing surface of the container to perform cleaning. The cleaning unit is raised to release the holding on the mounting table, the container is taken out of the mounting table, and the raised cleaning unit is continuously moved. After washing is raised to briefly lowered to spatula cleaning bath of running water spatula for cleaning while the first cleaning method of the container sealing surface, characterized in that to return to position container mounting table sent. 2. The cleaning spatula intersects with the sealing surface of the container so that the outer end of the cleaning spatula precedes the inner end of the container in the traveling direction of the cleaning spatula. 2. The method for cleaning a container seal surface according to item 1. 3. The method for cleaning the sealing surface of a container according to claim 1, wherein the cleaning spatula is washed by contacting the cleaning spatula provided in a water stream of the spatula cleaning tank. 4. A cleaning device for a container sealing surface, which is mainly composed of the following components: (a) a mounting table having a suction hole (3a) for adsorbing a bottom of the mounted container (1); A plurality of (3) are arranged at a certain interval on the same horizontal circumference and integrated to form a disk-shaped body, and the disk-shaped body and the axis are fixed to the same rotating base shaft (4). When the mounting table (3) is set on a circular orbit on the horizontal projection plane, the container feeding position (I), the cleaning section (I
I), a container mounting plate (2) rotating sequentially through a container delivery position (III) and a spatula washing section (IV), (b) the base shaft positioned above the container mounting plate (2). A container mounting plate fixed to (4) and provided with a holding portion (5a) which is substantially fitted to the peripheral wall on the base shaft (4) side of the container (1) mounted on the mounting table (3). A main retlet (5) that rotates horizontally in synchronization with the same direction as (2), (c) a substrate (8) that is fixed to the base shaft (4) at a position above the main retlet (5) and horizontally rotates. ), The same number of cleaning units (9) as the mounting tables (3) are vertically movably mounted at positions opposing the mounting tables (3), and the cleaning units (9) are mounted on the mounting tables (3). It is fixed to a rotating shaft (11) having an axis at the same position as the center line of the container (1) when placed, and rotates horizontally. A plurality of plate-shaped flexible cleaning spats (13) are directed downward around the periphery of the flat plate (12) and a circular opening is formed over the entire upper end of the container (1) placed on the mounting table (3). A spatula rotating body attached so as to intersect with the sealing surface (1a) of the peripheral edge on the horizontal projection surface, and each cleaning unit (9) is placed on the horizontal projection surface by the horizontal rotation of the substrate (8). As the cleaning spatula (13) moves on the circular orbit sequentially passing through the container feeding position (I), the sealing surface (1a) of the container (1) on the mounting table (3). The cleaning section (IV) is moved down to a level where the cleaning spatula (13) is moved to a position where the cleaning spatula (13) is moved to a height at which the cleaning spatula (13) is cleaned. After moving at least the central part of A cleaning head (7) provided with a cleaning unit vertical movement mechanism (15) for returning to the initial position; (d) a suction hole opened substantially at the center of the mounting table (3) of the container mounting board (2). (3) connecting the pressure reducing source in the cleaning section (II) to at least the container delivery position (III) and in the cleaning section (II), recovering the pressure from the reduced pressure to normal pressure (20); A carry-in conveyor (28) for carrying in the container (1) to a position near the mounting board (2); (f) a container (1) carried in by the carry-in conveyor (28); The holding units (30a) for feeding onto the mounting table (3) are arranged at a constant interval on the same horizontal circumference and integrated, and each holding unit (30a) is placed on the loading conveyor (28). Container feeding position (I) of the container mounting board (2) holding the container (1) Full Eid Thale bracts (3 horizontally rotated in a position to release the holding of the container (1)
0), (g) an unloading conveyor (31) provided near the container mounting board (2) for unloading the container (1) that has passed through the cleaning section (II), (h) a cleaning section (II) ), The holding parts (32a) for holding the containers (1) that have passed through on the mounting table (3) and transferring the containers (1) to the unloading conveyor (31) are arranged at regular intervals on the same horizontal circumference and integrated. Each holding unit (32a) holds the container (1) when the mounting table (3) of the container mounting board (2) is sequentially positioned at the container sending position (III), and is placed on the unloading conveyor (31). (6) a horizontally rotating discharge tray (32) at a position where the holding is released by (1) the container feeding position (I) set on the circular orbit;
From the container through the cleaning section (II)
Outer circumference of the main turret (5) leading to I), outer circumference of the section holding the container (1) of the feed turret (30), and outer circumference of the section holding the container (1) of the discharge jar (32) A container guiding guide (6) for holding the container (1) between the holding parts (5a), (30a), and (32a) and preventing escape from the holding parts (5a), (30a), and (32a).
(33), (34), (nu) installed below the substrate (8) almost corresponding to the spatula cleaning section (IV) on the horizontal projection plane, for cleaning the cleaning spatula (13). Spatula washing tank (35) in which water is flowing. 5. The cleaning spatula (13) of the cleaning unit (9) of the cleaning head (7) is such that the outer end (13b) of the cleaning unit (9) is higher than the inner end (13c) of the cleaning unit (9). The cleaning device for a container sealing surface according to claim 4, wherein the cleaning device is attached to a peripheral edge of the horizontal plate (12) so as to precede in the traveling direction of (13). 6. A lower edge of the cleaning spatula (13) of the cleaning unit (9) of the cleaning head (7) includes a portion which intersects the sealing surface (1a) of the container (1) on the horizontal projection plane. The cleaning device for a container sealing surface according to claim 4 or 5, wherein a spatula groove (13a) is provided. 7. A cleaning brush (37) in a spatula cleaning tank (35).
The cleaning device for a container sealing surface according to any one of claims 4 to 6, further comprising: