JPH11235766A - Fitting device for spout plug - Google Patents

Abstract

PROBLEM TO BE SOLVED: To supply plugs simply and accurately using a less-complicated configuration by arranging a plug support means between a container receiving member and the vibrating hone of an ultrasonic welding means and freely selecting between the opening and the holding of the plug. SOLUTION: A plug support device 9 comprises a pair of opening/closing levers 11, a receiving and holding member 12 and a lever support table frame 13 which slides back and forth in association with an ultrasonic welding device 4. The receiving and holding member 12 is arranged between a container receiving member 3 and a vibrating hone 5 and holds a plug 8 with the opening/ closing levers 11 set in a closed position. The plug support device 9 slides following the sliding of the ultrasonic welding device 4 to the container receiving member 3 side, and stops after coming into contact with a stopper 21. On the other hand, the ultrasonic welding device 4 continues sliding, resulting in the compression of an opening coil spring 20 by pressure and the subsequent wide opening of the opening/closing levers 11. Next, the plug 8 is inserted into the vibrating hone 5 and the ultrasonic welding device 4 continues sliding. When it comes into contact with a stopper 22, the plugs 8 are arranged in the spouts of cartons 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for mounting a spout for attaching a spout to a spout of a container made of, for example, paper, which stores liquids, powders, or grains such as rice. The present invention relates to a spout plug mounting device effective for supplying, supporting, and positioning the plug when the plug is attached to a paper container.

[0002]

2. Description of the Related Art Heretofore, this type of container has been made of a paper tube that is waterproofed by coating the inside and outside surfaces with plastic, and is formed by folding and sealing a square tube having a flat rectangular bottom. Is formed. The upper part of the peripheral wall of the rectangular tube is folded and sealed in a gable roof shape. A spout is formed on one inclined surface of the gable roof-shaped region above the peripheral wall of the rectangular tube, and a plug is fixed corresponding to the spout. This container contains, for example, milk, fruit juice, sake, liquid seasonings such as soy sauce, powders,
Alternatively, grains such as rice are filled.

[0003] The following procedures and means have been employed for fixing the plug to such a container. That is, the filling is first filled into the container, and then the upper end opening is sealed. Next, the area around the spout on the outer surface of the wall of the sealed container is heated and melted by the warm air blown from the electric heater. Subsequently, the bottom of the plug supported by the plug support member is also heated and melted by the warm air. Next, the bottom of the spout is pressed by the spout supporting member to the area around the spout on the outer surface of the wall of the sealed container, thereby being welded and fixed to the area around the spout (for example, Japanese Patent Publication No. 59-4300). Reference).

[0004]

However, such a conventional plug mounting means using a heat seal method is capable of heating and melting the bottom of the plug and heating the region around the spout on the outer surface of the container wall. The melting operation is performed at different places and by different heating means. Moreover, since the operation of fixing the plug to the area around the spout is performed in another place, a relatively large amount of time is spent from the start of the heating and melting operation to the end of the operation of fixing the plug. At the same time, a relatively large working space is also required, and the filling and sealing apparatus has tended to be large.

In addition, the structure of the filling and sealing apparatus has to be further complicated if the conventional large-sized filling and sealing apparatus is intended to improve the efficiency of the operation of fixing the plug per unit time.

According to this conventional means, when the plug is fixed to the container, the filling is already filled, and the bottom of the container and the top of the gable roof are already sealed. . For this reason, if this is pressed against the area around the spout of the gable roof-shaped area on the outer surface of the container in order to fix the bottom of the spout, the gable roof-shaped area will bend inward. As a result, the bottom of the spout does not sufficiently adhere to the spout surrounding area of the gable roof-shaped area on the outer surface of the container, and as a result, to the spout surrounding area,
Insufficient fixing of the bottom of the faucet occurs.

[0007] In addition, heating the area around the spout in the form of a gable roof on the outer surface of the container may cause deterioration of the already filled filler.

Therefore, the following proposal has been made as one means for remedying the problems of the conventional spout mounting device. This proposal does not use the completely sealed container as in the prior art, but uses the following devices, parts,
And it is composed of materials. That is, a cylindrical material having one end sealed and the other end open.
The cylindrical material is inserted inside from the other end opening side, abuts on the inner surface of the wall of the cylindrical material in a region corresponding to a predetermined position, and moves the predetermined position of the outer surface to the inside. Inner surface support member to support from the anvil. A plug supporting member that supports a plug supplied from the outside and makes the bottom of the plug abut on a predetermined position on the outer surface of the wall of the cylindrical material. And the plug supported by this plug support member,
When applied to a predetermined position on the outer surface of the wall of the cylindrical material, the ultrasonic wave is applied to the bottom of the plug to heat and melt the bottom, so that the bottom of the plug is formed of the cylindrical material. Ultrasonic welding means for welding and fixing at a predetermined position on the outer surface. This is configured as described above (for example, see Japanese Patent Publication No. 7-98371).

The advantages of this proposal are, first of all,
The point is that the stopper can be fixed with high accuracy. The reason is that compared to the conventional heat sealing method of attaching a plug with hot air shown above, it corresponds to the area around the spout of the gable roof shape area on the outer surface of the tubular material to which the plug is attached This is because the area to be spouted is supported from the inside by the anvil, that is, the container receiving member, so that even when the faucet is pressed from the outer surface, the region around the spout does not bend inward.

[0010] The second point is that the time required for fixing can be greatly reduced because the plug is pressed and fixed while being heated and melted by ultrasonic waves from a state in which the plug is brought into contact with a portion corresponding to the area around the spout. Another advantage is that work efficiency can be significantly improved.

[0011] Further, in welding and fixing the plug, the means employing the conventional heat sealing method uses a plurality of stations to carry out a division of labor. However, in this proposal, one of the many work steps of a filling device configured by continuously combining many work steps,
Alternatively, since a configuration that is completed in two stations (work processes) is employed, the size of the device can be reduced,
System simplification can be achieved at once.

The third point is that the bottom of the plug is heated and melted by ultrasonic waves, and the bottom of the plug is welded and fixed to the outer surface of the cylindrical material, and the container is filled with the filling material. The inconvenience of causing deterioration of the filling is eliminated by adopting a means in which a plug is attached in advance.

By the way, in this new proposal, a horn part formed in a cylindrical shape is provided, and on the bottom surface of the horn part, an ultrasonic welding means connected to a vacuum source is provided with a support for holding the plug. Played the role of a member. That is,
Using the opening at the tip of this horn part, the cap of the plug with a cap is inserted here, and when the plug is inserted, the vacuum source works, and the outer flange of the plug with the cap is closed. The horn is abutted and supported on the tip of the horn in a state of contact with the tip of the horn.

The inventor of the present invention has intensively studied to further improve this new proposal, and in particular, a novel spout spout mounting apparatus which can easily and accurately supply, support and position the spout. Since it has been developed, we propose here.

According to the present invention, there is provided a container receiving member to be inserted into the container from the upper end opening of a tube which is folded and sealed and has a flat bottom, and an ultrasonic welding device arranged opposite to the container receiving member. With means, while pressing the plug to a predetermined position on the outer surface of the container, by ultrasonic welding means,
An object of the present invention is to provide a spout mounting device that is fixed to a spout, in which supply, support, and positioning of the spout can be performed easily and accurately, and can be combined into a simple configuration.

[0016]

A plug supporting means is provided between the container receiving member and the vibration horn of the ultrasonic welding means. The plug supporting means includes a pair of opening / closing levers provided with a plug holding portion for holding the plug in a predetermined posture by inserting a flange portion of the plug. In addition, this plug supporting means, in conjunction with the approach operation of the ultrasonic welding means to the container receiving member,
An operation posture for opening and closing the plug by opening and closing the pair of opening / closing levers, and an operation for receiving and holding the plug by closing in conjunction with the separating operation of the ultrasonic welding means with respect to the container receiving member. That is, it is interlocked to the attitude via interlocking means that can be switched.

According to this means, the container receiving member is
The container is inserted into the inside of the container through one end opening, and supports the region of the container to which the plug is fixed from the inside, and prevents the region of the container to which the plug is fixed from flexing inward of the container.

Further, the holding of the plug by the plug supporting means is performed in a state in which the free ends of the pair of opening / closing levers abut against each other and are in a closed posture. Therefore, the plug supplied from the plug supply means (not shown) in a predetermined posture has its flange inserted and retained in the plug holding portion of the plug support means. As a result, the plug is accurately held by the holding portion of the plug in a predetermined posture that always keeps the intended posture well.

Next, the ultrasonic welding means moves and approaches the container receiving member to a predetermined position. In conjunction with the movement of this ultrasonic welding means,
The pair of opening / closing levers of the plug supporting means are operated such that their free ends are open to each other. Therefore, the plug is
The plug supporting means is opened from the holding portion of the plug.
At the same time, the vibration horn of the ultrasonic welding means is brought into contact with the flange of the plug, and the bottom of the plug is pressed against the outer surface of the region of the container where the plug is fixed.

Then, the ultrasonic welding means is operated to heat and melt the flange of the plug. As a result, the bottom of the plug flange is welded and fixed at a predetermined position on the outer surface of the container. At this time, as described above, the plug is held at a predetermined position on the outer surface of the container, and the position for the intended welding and fixing is properly held, and thus the accuracy is improved. Highly welded and fixed.

When the welding and fixing of the plug are completed, the ultrasonic welding means moves away from the container receiving member in the opposite direction, and returns to the intended standby posture. In conjunction with the returning operation of the ultrasonic welding means, the holding portion of the plug is also closed to the expected standby position for receiving and holding the plug by closing the open / close lever.

Thus, holding of the plug of the plug supporting means,
A series of operations for transferring the outer surface of the container to a predetermined position and releasing the holding are performed in conjunction with a series of operations for welding and fixing the plug of the ultrasonic welding means.

Therefore, the present invention has the following effects. A portion corresponding to the spout surrounding area of the gable roof shape area on the outer surface of the container to which the spout is attached is supported from the inside by an anvil, that is, a container receiving member. Therefore, even if the plug is pressed from the outer surface, the region around the spout does not bend inward, and the plug can be fixed with high accuracy.

Further, since the spout is brought into contact with the area corresponding to the area around the spout, and then heated and melted by ultrasonic waves and pressed and fixed in this state, the time required for fixing can be greatly reduced, and work efficiency can be reduced. Can be significantly improved.

Further, in welding and fixing the plug, the conventional means employing the heat sealing method is performed by using a plurality of stations to perform the division of labor. However, this proposal adopts a configuration that is completed in one or two stations (work processes) of many work processes of a filling apparatus configured by continuously combining a large number of work processes. . Therefore, downsizing of the device and
System simplification can be achieved at once.

Before filling the container with the filler,
Means is used in which the bottom of the plug is heated and melted by ultrasonic waves, the bottom of the plug is welded and fixed to the outer surface of the cylindrical material, and the tip is attached. As a result, the inconvenience of causing deterioration of the filling is solved.

Then, the plug is inserted into the holding portion of the plug, and the flange portion is inserted and received and held in a predetermined posture. Therefore, the plug is always accurately held in the predetermined posture. . Therefore, the receiving and subsequent transfer to the predetermined position on the outer surface of the container can be performed in a preferred posture suitable for the intended welding and fixing without any inconvenience such as dropping off of the plug, and the welding and fixing is also suitable. Can be done with As a result, highly accurate welding and fixing became possible.

A series of operations of holding the plug of the plug supporting means, transferring the outer surface of the container to a predetermined position, and releasing the holding are performed by the interlocking means through the interlocking means. Is performed in conjunction with a series of operations for welding and fixing. Therefore, the configuration of the device can be remarkably simplified.

In the present invention, the interlocking means is provided at a base end of the opening / closing lever in association with a pair of guide cams provided on the vibration horn support frame of the ultrasonic welding means. It is composed of a slider and
preferable. It is preferable that the pair of guide cams are formed closer to each other on the container receiving member side than the ultrasonic welding means side, and are formed in a katakana shape of katakana when viewed from above. As described above, by employing the guide cam and the slider slidably guided by the guide cam as the interlocking means, the operation system of the plug supporting means with respect to the ultrasonic welding means is simplified and the configuration is also simplified. I can do it.

It is preferable that the holding portion provided at the free ends of the pair of opening / closing levers has the following configuration. First, the pair of opening / closing levers is constituted by a pair of receiving / holding members which are raised at respective free ends in the vertical direction. Second, the opposing opening / closing lever side edge is in the operating posture in which the opening / closing lever is closed,
It is cut out so as to have a U-shape and is formed so as to hold the cap portion of the plug. And the third
On the surface of the intermediate portion in the thickness direction of the receiving and holding member, a concave groove having a size sufficient to receive the thickness and width of the plug flange in conformity with the U-shape is provided. Is engraved. As described above, in a configuration in which the flange of the plug and the cap can be held together, the intended holding posture of the plug is more accurately and accurately maintained.

[0031]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIGS. FIG. 9 shows an upper part of a carton 1 called a container with a spout after the spout 8 has been attached by the spout attaching device of the present invention and filled and sealed by a liquid filling device (not shown). Have been. The carton 1 after being filled and sealed is formed of a paper-made rectangular tube-shaped material which is waterproofed by coating the inner and outer surfaces with plastic, and has a square-shaped flat bottom. As shown in the figure, the upper part of the carton 1 has a peripheral wall 1A folded into a gable roof shape and sealed by heat welding. A spout 1C is formed in one of the gable roof-shaped portions 1B, and a spout 8 is welded and fixed corresponding to the spout 1C. The spout 1C is closed by a sealing film 1D attached to the inner surface of the peripheral wall 1A of the carton 1.

In this embodiment, the plug 8 is provided as shown in FIG.
As shown in FIG. 2, the plug body includes a cylindrical plug body 8A and a cap 8B. The cap 8B is screwed to a male screw formed on the outer peripheral surface of the plug body 8A, and is repeatedly detachable from the plug body 8A. The spout 8 is concentrically welded and fixed to the spout 1C of the container 1. An outwardly protruding flange 8C is integrally provided at the lower end of the plug body 8A, and the bottom of the flange 8C is fixed to a region around the spout 1C on the outer surface of the carton 1. Thus, the above-described welding and fixing is achieved.

In FIG. 1, although not shown, a container, for example, a carton 1 in the form of a rectangular tube is conveyed in a direction perpendicular to the plane of the drawing by a conveying device provided with claws. Above the transfer device, a container receiving member 3 supported by a frame 2, for example, a stainless steel square tubular anvil is fixed.

An ultrasonic welding device 4 is disposed on the right side of the container receiving member 3 as a plug welding means for a spout. The ultrasonic welding device 4 includes a vibration horn 5 protruding toward the container receiving member 3 and a support frame 6 for supporting the vibration horn. Then, while being guided by a linear guide path 7 provided below, it is driven by a driving device (not shown) and slides back and forth in the direction of arrows AA '. That is, it is configured so as to approach or move away from the container receiving member 3 in a straight line. An opening 5A is provided at the tip of the vibration horn 5. The opening 5A has an inner diameter dimension corresponding to that of the plug 8.
Is slightly larger than the outer diameter of the cap 8B, and the depth is set slightly larger than the height of the cap 8B.

A support device 9 for the plug 8 is provided between the container receiving member 3 and the support frame 6. The plug support device 9 receives and holds the plug 8 intermittently supplied from a plug supply chute (not shown), and inserts the held plug 8 into the container receiving member 3. The carton 1 is transported to a position corresponding to an outer surface of a predetermined position.

The specific configuration of the plug supporting device 9 is as shown in FIGS. 1 to 3 and has the following configuration. That is, a pair of opening / closing levers 11 rotatably supported at a middle point on a vertical support shaft 10 and a tip of the opening / closing lever 11, ie, a free end on the container receiving member 3 side, are integrally attached. The receiving and holding member 12 and the support shaft 10 are fixedly held for receiving and holding the plug 8 that has been plugged, and are also associated with the support base frame 6 of the ultrasonic welding device 4 while being guided by the guide path 7. Both are constituted by a lever support frame 13 which reciprocates in the direction of arrow AA ', that is, linearly approaches or separates from the container receiving member 3.

The holding member 12 of the plug supporting device 9
Is disposed between the container receiving member 3 and the tip of the vibration horn 5 of the ultrasonic welding device 4 as shown in FIG. It is set up along the line. The receiving / holding member 12 can hold the cap portion 8B of the plug 8 in which the opposing edges on the opening / closing lever side are cut out so as to exhibit a U-shape in the operation posture in which the opening / closing lever 11 is closed. A holding unit 14 is provided. In addition, the center of the holding unit 14, that is, an intermediate portion in the thickness direction of the receiving and holding member 12, is provided with the holding unit 1 according to the U shape of the holding unit 14.
A groove 1 having a size sufficient to receive the thickness and width of the flange 8C of the plug on the surface of the plug 4 or having substantially the same size.
5 is engraved.

Therefore, the opening / closing lever 11 is connected to the plug 8
2 and 3, the pair of opening / closing levers 11 are closest to each other, and the holding portions 14 of the receiving and holding member 12 are in opposition to each other, as shown in FIGS. Is done. As a result, when viewed from the container receiving member 3 side, the holding portion 14 forms an upwardly open receiver just like the letter U of the alphabet. Also, the concave groove 15 receives the flange 8C of the plug 8 well, and the plug 8 is held in such a position that its axis is in the horizontal direction and the flange 8C is in the vertical position. It is configured to be.

The opening and closing operation of the pair of opening and closing levers 11 is as follows.
Via the interlocking means 16 interposed between the opening / closing lever 11 and the ultrasonic welding device 4, the ultrasonic welding device 4 is linked to the approach / separation operation of the support frame 6 with respect to the container receiving member 3 via the interlocking means 16. It has been done. The specific structure is shown in FIG.
As shown in FIG. 2, a cam underframe 17 is integrally and continuously provided on the side surface of the support underframe 6 on the container receiving member side.
A pair of guide cams 18 are provided on the upper surface of the cam underframe 17. The pair of guide cams 18 are closer to each other on the container receiving member 3 side than the ultrasonic welding means 4 side, and are closer to each other.
The cam frame 17 is formed by a concave groove formed on the upper surface.

On the other hand, the base end of the opening / closing lever 11, that is, the end on the ultrasonic welding device 4 side, is directed downward.
A protruding member 19, which is an example of a sliding member, is protruded, and its protruding end is relatively slidably fitted into the guide cam 18.

An open coil spring 20 is provided between the lever support frame 13 and the ultrasonic welding device 4. A stopper 2 is provided at a predetermined distance from the lever support frame 13 on the container receiving member 3 side.
The lever support frame 13 is configured to restrain sliding of the lever support frame 13 toward the container receiving member 3 beyond a certain distance.

Also, a stopper 22 is provided on the container receiving member 3 side of the ultrasonic welding device 4 at a predetermined distance from the container receiving member 3. It is configured to control the sliding of the vehicle.

The relative positional relationship between the two stoppers 21 and 22 is set under the following conditions. That is, as the ultrasonic welding device 4 slides toward the container receiving member 3, the plug supporting device 9 also slides toward the container receiving member 3. Holder 1
When 5 reaches just before the carton 1 in which the container receiving member 3 is fitted, the lever support frame 1
3 is brought into contact with the stopper 21, and further sliding toward the container receiving member 3 is prevented. However, at this point, the ultrasonic welding device 4 continues to
To the container receiving member 3 side for a predetermined distance, and finally, the tip of the vibrating horn 5 is moved from the outer surface of the carton 1 to the flange 8C of the plug 8.
When it approaches the dimension corresponding to the thickness of the container, it comes into contact with the stopper 22 and is prevented from sliding toward the container receiving member 3 side. This ultrasonic welding device 4
The difference in the amount of sliding between the device and the plug supporting device 9 is configured to be caused by the compression of the open coil spring 20 interposed between the two devices.

Next, the operation of the above embodiment will be described. First, as shown in FIG. 4, a container receiving member 3 is inserted into the opening of the carton 1 whose upper part is opened. This carton 1 is folded and sealed in a square shape with a flat bottom, not shown, and is not yet filled with liquid. The container receiving member 3 is in contact with the sealing film 1D attached to the inner surface of the carton 1 to close the spout 1C of the carton 1.
Therefore, the inner surface of the carton 1 covers the peripheral area of the spout 1C through the sealing film 1D.
Supported by In the figure, the peripheral wall 1A of the carton 1
Is a creasing line when folded into a gable roof shape to seal the top of this carton.

As means for fitting the container receiving member 3 into the upper opening of the carton 1, the carton 1 approaches the container receiving member 3 fixedly installed at a predetermined position from below, for example. Contrary to this method, the container receiving member 3 approaches the carton 1 which does not move in the vertical direction from above, or the carton 1
This is also performed by the container and the container receiving member 3 approaching each other, and any means can be adopted. At this time, as shown in FIG. 1, both the ultrasonic welding device 4 and the plug supporting device 9 are connected to each other by the container receiving member 3.
, The opening and closing lever 11 is also the
As shown in FIG. 3, the protrusion 19 at the base end is located at a position closest to the container receiving member side of the guide cam 18, is in a closed posture, and the holding portions 14 are in contact with each other. , And is kept in a standby position for receiving plugs.

Next, the plug 8 is supplied to the receiving and holding member 12 of the plug support device 9 from above by a plug supply device not shown. As shown in FIGS. 1 and 2, the supplied posture is such that the axis of the plug 8 is oriented in the horizontal direction and the flange 8C is oriented in the vertical direction. The plug 8 supplied in this posture is attached to the receiving and holding member 12 as shown in FIG.
The cap 8B is held at the same time, and the lower half peripheral portion of the flange is fitted into the concave groove 15 and is received and held by the receiving and holding member 12. At this time, since the plug 8 is held by the concave groove 15 having a size sufficient to receive the thickness and width of the flange 8C or having substantially the same size, the holding posture achieves the intended purpose. Is maintained in a sufficiently favorable posture.

When the reception of the plug 8 is completed, the ultrasonic welding device 4 is slid toward the container receiving member 3 by a driving device (not shown). With the sliding of the ultrasonic welding device 4, the container supporting member 9 is also connected to the plug supporting device 9 via the opening coil spring 20 while maintaining the relative distance between the two in the standby posture. It is slid toward the third side.

When the plug supporting device 9 slides a predetermined distance,
As shown in FIG. 4, this is brought into contact with the stopper 21 to prevent its sliding. The position where the sliding is prevented is a position where the receiving and holding member 12 is almost in contact with the outer surface of the carton 1. However, since the ultrasonic welding device 4 does not contact the stopper 22 yet, the ultrasonic welding device 4 is continuously slid toward the container receiving member 3. By the sliding of the ultrasonic welding device 4 at this time, the open coil spring 20 interposed between the ultrasonic welding device 4 and the plug supporting device 9 is pressed and compressed. Thereby, the relative distance between the ultrasonic welding device 4 and the plug supporting device 9 in the standby posture is reduced. Therefore, as shown in FIGS. 5 to 7, the protrusion 19 provided at the base end of the opening / closing lever 11 is provided.
Is guided by the guide cam 18 so that the base ends of the open / close levers 11 are expanded from each other around the support shaft 10, and the distal end side of the open / close lever 11 is inevitably expanded. Will be.

As shown in FIG. 5, the ultrasonic welding device 4 is provided at the tip of the vibration horn 5 so that the opening and closing operation of the opening / closing lever 11 is performed. The cap 8B of the plug 8 is inserted into the opening 5A. And the opening / closing lever 1
Simultaneously with the complete unfolding of the plug 1, the plug 8 is transferred from the receiving and holding member 12 of the plug support device 9 to the ultrasonic welding device 4. At the same time, the opening / closing lever 11
Is fully expanded. As a result, the receiving and holding member 12 provided at the free end of the opening / closing lever 11 opens left and right, allowing the vibration horn 5 to further slide toward the container receiving member 3.

Then, the ultrasonic welding device 4 is slid toward the container receiving member 3 and finally abuts against the stopper 22 to prevent the sliding. At this time, the vibration horn 5
Inserts the plug 8 held in the opening 5A at the tip thereof into the carton 1
The bottom of the flange 8C of the plug 8 is brought into contact with the outer peripheral surface of the carton 1 around the spout in a state of being concentrically arranged with respect to the spout 1C. At this point, the area around the spout 1C on the inner surface of the carton 1 is
Since it is supported by the container receiving member 3 via D,
There is no possibility that the area around the spout 1C of the carton 1 will bend inward and bend. Therefore, the contact pressure of the bottom of the flange 8C of the plug 8 to the area around the spout on the outer surface of the carton 1 is:
It is uniform over the entire bottom.

The vibration horn 5 is connected to an ultrasonic wave source 23 as shown in the figure. Then, when the bottom of the flange 8C of the plug 8 comes into contact with a region around the spout on the outer surface of the carton 1, the ultrasonic generating source 23 is operated, and ultrasonic waves are transmitted to the vibration horn 5 and the vibration horn 5 is transmitted. 5 functions as an ultrasonic transducer. As a result, the ultrasonic wave transmitted from the tip of the vibration horn 5 instantaneously heats and melts the bottom of the flange 8C and the plastic coating around the spout on the outer surface of the carton 1, and the flange 8C of the plug 8
Is welded and fixed to a region around the spout on the outer surface of the carton 1. The flange 8C of the plug 8 which is in contact with the outer periphery of the spout on the outer surface of the carton 1 at a uniform contact pressure over the entire bottom is sufficiently firmly welded and fixed to the outer periphery of the spout on the outer surface of the carton 1. Will be done.

The flange 8 of the plug 8 is melted by ultrasonic heating and melting.
After a predetermined time required for C to be welded and fixed to the area around the spout on the outer surface of the carton 1, the transmission of the ultrasonic waves from the ultrasonic generator 23 to the vibration horn 5 is stopped.
Then, the ultrasonic welding device 4 is driven by a driving device (not shown).
The tip of the vibrating horn 5 is slid so as to be separated from the plug 8, and the vibration horn 5 is returned and retracted to the expected standby position for supplying the next plug.

Prior to the return of the ultrasonic welding device 4 to the expected standby position, first, as the support frame 6 is retracted, the open coil spring 20 is also resiliently resilient. The extension and return to the no-load posture in the expected standby posture state. Then, the ultrasonic welding device 4 and the plug supporting device 9 work so as to return the relative interval to the interval in the intended standby posture. At the same time, the opening / closing lever 11 is also closed so as to return to the closed position in which the receiving and holding members 12 at the free ends are in contact with each other, that is, the receiving and holding position of the plug 8 shown in FIG.

In the above embodiment, the carton 1
The case where the sealing film 1D which seals the spout 1C is adhered to the inner surface of the carton 1 is illustrated. However, the sealing film 1D is strongly adhered to the bottom of the flange 8C of the plug 8, and the sealing film 1D can be welded together with the bottom to a region around the spout on the outer surface of the carton 1. . In addition, in the vicinity of the bottom of the plug body 8A, a spout provided with a closable closure lid for opening a spout for use, or a spout 1C of the carton 1 with opening of the cap in use. A plug having a cutting blade for cutting the sealing film 1D for sealing the sealing film 1D can also be adopted. Needless to say, each of these must have a flange.

In the above embodiment, the plug 8
In the above, the case where the welding is fixed from the outside of the carton 1 is exemplified. However, the present invention is not only employed exclusively for the so-called external system, but also characterized in that it can be used in combination with a conventional internal system (not shown). That is, as an example, the structure is as shown in the patent publication of Japanese Patent No. 2503470. That is, specifically, the spout is inserted into the spout from the inside of the carton and temporarily attached, and is easily attached to the means for fixing the spout to the container by welding means. Coexistence in two liquid filling devices can also be easily adopted. In this case, a means for coexisting in one station and a means for separately mounting two stations before and after in a process can be adopted. In any case, since the delivery position from the tip of the plug supply chute of the plug supply device to the plug receiving means is different between the internal and external attachments, this plug supply chute has both types of plug reception. Needless to say, it is necessary to adopt a configuration capable of changing the position of the means.

As described above, the coexistence of both the inner and outer types can further improve the efficiency of the work of attaching the plug, and at the same time, can improve energy saving, resource saving and labor saving, and furthermore, the product Can greatly contribute to cost reduction.

Further, in the above embodiment, the guide cam 15 has a structure in which a concave groove is formed on the upper surface of the cam underframe 17. However, a structure in which a ridge is projected from the upper surface of the cam underframe 17 instead of the concave groove to form a similar concave groove can be adopted. Opening / closing lever 11
The link is connected to the base end of the cylinder, and this intermediate connection point is connected to the cylinder rod of the hydraulic cylinder.
Means for controlling the opening and closing of the opening and closing lever 11 can be adopted as an alternative structure of the concave groove.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing the entire structure of a spout tap mounting device.

FIG. 2 is an enlarged plan view of a main portion for explaining a relative relationship between a receiving and holding member of the plug supporting device of FIG. 1 and a plug received and held by the receiving and holding member.

3 is an enlarged side view of a main part for explaining a relative relationship between a receiving and holding member of the plug supporting device of FIG. 1 and a plug received and held by the receiving and holding member.

FIG. 4 is an explanatory view of the operation, and is a front view schematically showing the entire device when the plug is pressed against a predetermined position on the outer surface of the carton by the plug supporting device.

FIG. 5 is an explanatory view of use, and is a partially cutaway front view schematically showing the entire device when the flange of the plug is welded and fixed by an ultrasonic welding device.

FIG. 6 is an enlarged plan view of a main part schematically showing the entire plug supporting device in an operating posture.

FIG. 7 is an enlarged side view of the main part schematically showing the entire plug supporting device in the operating posture.

FIG. 8 is an enlarged sectional view of a part of a main part, illustrating a state in which the plug is welded and fixed to the outer surface of the carton by the vibration horn.

FIG. 9 schematically shows the upper part of a container with a plug after the plug is welded and fixed to a predetermined position on the outer surface of the carton by the ultrasonic welding device, and the filling is filled and sealed. It is a partially notched external view.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Container, 1A ... Perimeter wall, 1B ... Gable roof shape part, 1
C: spout, 1D: sealing film, 3: container receiving member,
4: Ultrasonic welding means, 5: Vibration horn, 8: Plug, 8A
... Plug body, 8B cap, 8C flange, 9 plug support means, 11 opening / closing lever, 12 receiving holding member, 14 holding section, 15 groove, 16 interlocking means, 18
... Guide cam, 19 ... Slider, 20 ... Open coil spring, 2
1,22 ... stopper.

Claims (3)

[Claims] 1. A container receiving member inserted into the container from an upper end opening of a tube which is folded and sealed and has a flat bottom, and an ultrasonic welding means arranged to face the container receiving member. A spout spout mounting device, wherein the spout is fixed by ultrasonic welding means while pressing the plug at a predetermined position on the outer surface of the container, wherein the container receiving member and the ultrasonic welding means are provided. The plug supporting means is disposed between the vibrating horn and the plug supporting means, and the plug is held in a predetermined posture by inserting a flange portion of the plug. A pair of opening / closing levers provided with a holding portion for the plug are provided, and the plug supporting means, in conjunction with the approach operation of the ultrasonic welding means to the container receiving member, the pair of opening / closing levers Working posture to open and open the faucet Conversely, the interlocking means is interlockingly connected through interlocking means which is configured to be able to be switched to an operation position for receiving and holding the plug by being closed in conjunction with the separating operation of the ultrasonic welding means with respect to the container receiving member. Is a spout tap mounting device. 2. A pair of guide cams provided on a vibration horn support frame of the ultrasonic welding means, and a slider provided at a base end of the opening / closing lever in association with the guide cams. 2. The spout plug according to claim 1, wherein said pair of guide cams are formed so as to be closer to each other as the ultrasonic welding means moves toward the container receiving member. Mounting device. 3. The holding portion of the plug supporting means is vertically raised at a free end of each of the open / close levers.
A pair of receiving / holding members are formed so that the opposing opening / closing lever side edges are cut out so as to exhibit a U-shape in the operation posture in which the opening / closing lever is closed, and hold the cap portion of the plug. In addition, the surface of the intermediate portion in the thickness direction of the receiving and holding member has a size sufficient to receive the thickness and width of the flange of the plug in accordance with the U-shape. 2. The spout plug mounting device according to claim 1, wherein said groove is cut.