JP2548305B2 - Temporary sealing method and temporary sealing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a container which is supported between a pair of rails in a hanging manner, and which is intermittently transferred along the rails at regular intervals for a certain distance to a lid supply position. The present invention relates to a temporary sealing method for temporarily fixing a lid supplied to a container with the opening of the container closed and an apparatus for performing this method. The lid supplied in this state is configured to be temporarily fixed to the opening in the container in the accurately positioned state.

[Conventional technology]

The contents, which are foods, were sterilized and sterilized before filling, and sterilized before filling, for sterile packaging, which was processed under aseptic conditions as much as possible to maintain freshness for as long as possible. It has been recognized that aseptic filling and packaging in which containers are filled and sealed in a sterile atmosphere and are not sterilized secondarily are excellent in the following points.

Since the contents are sterilized by high-temperature treatment for a short time, the heat history is small, so that the original quality of the foods, such as the flavor, color tone, and nutritional value, which the contents originally possess, can be favorably maintained.

Since the contents stored are sterile, it can be stored at room temperature.

Since refrigeration is not required for storage and distribution, the huge amount of energy required for low-temperature distribution can be reduced.

Capable of packaging large containers that cannot be processed by canning.

Because the shelf life is long, planned production can be performed.

Since the packaging material container is sterilized before packaging,
Does not require the heat resistance required for canned foods and retorts.

As described above, the aseptic filling and packaging technique has many excellent advantages, and therefore, it has come to be used for filling and packaging of many foods, and its basic processing means is carried in and sterilized. The treated container is sent into a sterile atmosphere as it is, filled with contents, and then sealed with a sterilized lid.

In this aseptic filling and packaging technology, the container filled with the contents is hermetically sealed by the lid sterilizing and feeding device, which supplies the lid onto the opening of the container and presses the container with the lid mounted in the opening. It is sent to the device, and is pressed and heated by this pressing and sealing device, and the lid is welded to the flange of the container to achieve sealing.

As described above, in the conventional filling and sealing apparatus, since the supply position of the lid to the container and the sealing position at which the lid is welded to the opening of the container to achieve the sealing of the container by the lid, the lid is different. During the transfer movement from the supply position to the seal position, the lid, which is simply mounted on the container opening, is displaced with respect to the container, and the lid is welded to the container in this uneven state. By doing so, not only will the container not be sealed by the lid, but a defective product will be generated.Even if the container can be sealed by the lid, the appearance of the product will be significantly impaired. Is
The product value such as making consumers uncomfortable and opening the container illegally during handling such as transportation or storage is to be significantly reduced.

As a conventional technique for solving the problems and inconveniences in the technique of sealing the container by welding the lid to the opening of the container, there is JP-A-57-193602.

In the technique disclosed in Japanese Utility Model Laid-Open No. 57-193602, a device for correcting the displacement of the lid with respect to the container is provided between the container feeding position and the pressing seal position on the container conveying path. A temporary sealing device is integrally assembled to the correction device, and when the container with the lid mounted in the opening stops at the position offset correction position where the lid position offset correction device is placed, the lid position offset device Immediately after the correction of the displacement of the lid with respect to the container, immediately after the completion of this correction, the lid is opened by a temporary sealing device that heats and presses a plurality of peripheral parts of the lid onto the mouth rim of the container to weld them. It is fixed by welding.

In this way, since the lid is fixedly welded and fixed to the container opening by the temporary seal immediately after correcting the displacement of the lid with respect to the container, the displacement of the lid with respect to the container during the subsequent transfer movement to the sealing position. Therefore, the lid can be fixed by welding and sealing in a state where the lid is accurately positioned in the container opening.

[Problems to be Solved by the Invention]

In the above-mentioned conventional technique, since it is necessary to provide a dedicated position deviation correcting device for correcting the position deviation of the lid with respect to the container in the middle of the lid supply position and the pressing seal position of the container transport path, filling and sealing is performed. This makes the structure of the entire device complicated, which makes the price of the filling and sealing device expensive, and makes maintenance and handling extremely complicated and troublesome.

Further, since the temporary sealing device needs to be provided integrally with the positional deviation correcting device, the structure of the combination of the positional deviation correcting device and the temporary sealing device becomes complicated and large, and therefore the volume as small as possible is required. The volume of the aseptic atmosphere desired to be increased unnecessarily and significantly.

Further, the supply of the lid body from the lid body sterilization supply device to the container stopped at the lid body supply position is achieved in a very accurately positioned state. The precise positioning function is completely useless.

Further, since the positional deviation correcting device and the temporary sealing device are interlocked with each other, when the dimensions of the container and the lid are changed, it is necessary to directly change the set values of the necessary parts by hand. Therefore, every time the set value is changed, the aseptic atmosphere is lost, and a long loss time is required to restart the filling and sealing device.

The present invention was devised to solve the above-mentioned problems in the prior art, and by utilizing the supply function in the state where the lid body is accurately positioned with respect to the container of the lid body sterilization supply device, The purpose is to omit the troublesome positional deviation correction work.

Another object is to provide a temporary sealing device having an extremely simple structure.

[Means for solving the problem]

Means for achieving the above object in the device of the present invention is to support at least a pair of rails arranged horizontally in parallel with each other by a collar and hang it around a container, which is intermittently transferred along the rails at regular intervals. To supply a sterilized lid body to the container, and to supply the lid body to the container by means of a public transfer feeder that rotates intermittently along the transfer direction of the container with respect to the opening of the container. Part of the peripheral part of the lid that is supplied in the state of being accurately positioned on the container mouth flange on the rail is welded and fixed to the mouth collar by pressing the heating piece. There is something to do.

Further, a heating element for welding a part of the peripheral edge portion of the lid to the container mouth collar is supplied on the rail immediately above the lid supply position to the container along the transfer direction of the container. The opening is to allow the invasion of the container directly above the container, and is arranged so that it can be moved up and down.

The heating piece may be provided so that it can be changed in the same manner as the rail width when the dimensions of the container and the lid are changed and the rail width is changed accordingly.

The heating piece can be moved up and down by mounting the rail so that the base end of the rail can be pivoted on the downstream side of the container feed direction with respect to the lid feed position, so that the tip moves vertically above the lid feed position. It is effective to provide a rocking rod positioned so that it can be rocked and displaced, and to attach a heating piece to the lower surface of the tip of this rocking rod.

In addition, the swinging motion of the swinging rod with the heating piece attached to the tip is provided with the swinging arm in a form in which the base end of the swinging rod is extended,
This is achieved by connecting an up-and-down displacement mechanism that applies up-and-down displacement force to this swing arm.

As an elevating / displacement mechanism connected to the swing arm, a cam follower is provided at the extended end of the swing arm, and a spring or the like for exerting a pushing force is applied to the swing arm. A structure in which a cam roller in which a cam follower is constantly in contact with a cam surface, which is a circumferential surface, is attached to and fixed to a rotary shaft that is rotationally driven in synchronization with transfer, or the swing arm is attached to a swing arm. A configuration in which a cylinder for vertical displacement is connected is desirable, and this cylinder is driven by any of pneumatic pressure, hydraulic pressure, and electromagnetic drive.

[Action]

Since the sterilized lid is supplied onto the container opening by the public transfer feeding along the conveying direction of the container by the public transfer feeder, the lid is laterally supplied onto the container opening. Therefore, even if some device portion is located right above the lid supply position on the transport path, if there is a gap between the device portion and the rail top surface, the supplied lid can enter. The supply of the lid to the container is achieved without any hindrance. The container stopped at the lid supply position is supported only by the mouth rims located on the pair of rails, but inside the opening of this container, that is, the peripheral portion of the lid located on the mouth rim. When the heating piece is pressed against a part of the rail located on the rail, the rail supports the pressing force of this heating piece, so the downward movement of the heating piece that moves up and down causes the lid peripheral edge to be welded to the mouth collar. In addition, the lid supplied to the container opening can be temporarily fixed to the container while being accurately positioned from the lid sterilization supply device, and the lid is incorrectly positioned with respect to the container. Transfer the container to the pressure seal position without slipping.

By providing heating pieces corresponding to each rail,
Temporary sealing of the lid with respect to the container will be achieved at least at two positions located substantially opposite to the mouth collar, whereby the posture of the lid with respect to the container by the temporary sealing will be stable.

The rocking rod with the heating piece attached to the lower surface of the tip moves the heating piece up and down by rotating around the base end of the rocking rod, and lowers the heating piece by rotating the heating piece to the peripheral edge of the lid. Press.

The rotation of the rocking rod about its base end is performed by vertically moving the rocking arm integrally provided on the rocking rod by the lifting / lowering displacement mechanism, so that the rocking rod and the rocking arm are integrated. Is achieved by swinging about the base end of the swing rod as the central axis.

In the configuration example in which the swinging displacement mechanism is configured by using the cam mechanism, when the rotation position of the rotating shaft that rotates in synchronization with the intermittent transfer of the container reaches the set position, it faces the large-diameter cam surface of the cam roller until then. Since the cam follower that has been used faces the small-diameter cam surface, the swing arm is pushed up by the elastic force of the spring until the cam follower comes into contact with the small-diameter cam surface. Pressed to achieve a temporary sealing of the lid body welded to the collar. When the temporary welding of the lid to the flange is achieved, the rotation of the continuously rotating rotary shaft causes the cam follower to face the large-diameter cam surface of the cam roller again, so that the swing arm opposes the elastic force of the spring. It is pushed down and the heating piece is raised and retracted. Also, in the configuration example in which the swing displacement mechanism is configured using a cylinder,
The cylinder, whose one end is immovably fixed, is connected to the oscillating arm at the other end, and the cylinder is driven according to the lid supply detection signal for the container stopped at the lid supply position to raise the oscillating arm, and the oscillating arm is moved. As the moving arm rises, the heating piece descends and is pressed against the lid body, thereby achieving welding and temporary sealing of the lid body to the flange.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

The embodiment shown in FIGS. 1 to 8 is configured to be assembled in the aseptic filling and packaging apparatus shown in FIG.
Briefly explaining the aseptic filling and packaging apparatus shown in FIG.
This aseptic filling and packaging apparatus is composed of a container sterilization apparatus 30 and a filling and sealing apparatus 36, and the container sterilization apparatus 30 houses a drive unit of the entire aseptic packaging apparatus and serves as a support for the entire apparatus. An airtight frame 41, which is a sterile chamber, is provided on a support frame 43, and a container supplier 31 that sequentially supplies the container A to the airtight frame 41, a germicide inlet 32 such as hydrogen peroxide, and an ultraviolet ray. The irradiation device 33, the hot air supply duct 34, and the hot air suction duct 35 are attached, and the container supply body 31 is provided on at least a pair of rails for transportation arranged horizontally and in parallel in the airtight frame 41. The container A supplied from the above is held by the collar A1 in a hanging manner, and the container A is held on this rail.
Is moved by a push plate fixed upright at regular intervals on an endless chain provided under the rail for intermittently running along the rail.

The container A, which is held on the rail and moves intermittently, is first sterilized by spraying a sterilizing agent from the sterilizing agent inlet 32 and subsequently irradiating it with ultraviolet rays from the ultraviolet ray irradiating device 33, and then blowing it with hot air. It is completely dried by applying and then supplied to the filling and sealing device 36.

The filling and sealing device 36 has an airtight frame 42, which is a sterile chamber, mounted on the support frame 43.
Further, a filling machine 37 for supplying and filling the contents into the container A, and a lid sterilizing / supplying device 38 for sterilizing the lid F and then supplying the contents in the container A stopped at the lid supply position in an accurately positioned state. When,
Pressure seal device 40 for tightly welding the lid F to the opening surface of the container A
(Refer to FIG. 1), and in the airtight frame 42,
An intermittent transfer device in combination with the rail R, a first positioning part for positioning the container A with respect to the lid F supplied from the lid sterilization supply device 38, and achieving attitude control of the container A, and the lid. When F is welded and fixed to the container A, positioning and posture regulation of the combination of the container A and the lid F with respect to the pressure sealing device 40 are achieved, and the pressing force from the pressure sealing device 40 for welding and fixing is achieved. And a second positioning portion that receives the second positioning portion.

The container A carried in from the container sterilizer 30 is held on a rail R in a hanging manner and transferred to a position immediately below the filling machine 37 by an intermittent transfer device, and the filling machine 37 fills the contents in an aseptic state. The container A filled with the contents is further moved to the lid supply position immediately below the lid sterilization supply device 38, where the lid is positioned and regulated in a fixed posture by the first positioning section. At the same time that the lid F is supplied from the sterilization supply device 38, the lid F is temporarily fixed to the container A by the temporary sealing device 1 according to the present invention. The container A in which the lid F has been temporarily fixed on the mouth collar A1 is then transferred to the sealing position immediately below the pressure sealing device 40, and the second positioning unit controls the positioning and posture of the container A, and A press-sealing device is supported by supporting a flange A1 which is a welding land of the lid F from below.
The lid F is hermetically sealed and welded to the outside of the airtight frame 42. The lid sterilization supply device 38 is configured by a public transfer body.

As shown in FIG. 1, the temporary sealing device 1 according to the present invention assembled in such an aseptic filling and packaging device has a filling machine 37.
It is provided directly below the lid sterilization supply device 38 disposed between the pressure seal device 40 and the pressure seal device 40. This lid sterilization supply device 38,
A large number of chambers are formed on the peripheral surface of the drum so as to be hermetically sealed, and the lid F supplied to this chamber is adsorbed and held by the tip of a pickup rod 39 provided so that it can move in and out of the chamber, and the drum is orthogonal to the transport direction. Rotate intermittently around the axis to cover F
Sterilizing the lid F while revolving the
Pickup rod 39 from the stop position immediately above the lid supply position
Is slightly advanced (becomes a downward displacement), and is supplied onto the container A already stopped at the lid supply position, the adsorption of the pickup rod 39 to the lid F is released, and the lid F is placed on the container A. It is listed.

In this way, the lid sterilization supply device 38 transfers the lid F by public transfer along the transfer direction formed by the rail R, so that the lid F is supplied to the container A stopped at the lid supply position. This is achieved from the side of the container A, more specifically, the side on the upstream side in the transfer direction.

The rocking rod 10 having the heating piece 11 attached to the lower surface of the tip located immediately above the rail R at the lid supply position is for mounting the rail R whose base end is located downstream of the lid supply position along the transfer path. It is rotatably attached to the mounting frame 4 portion of the above by a swing shaft 13 via a shaft stopper 12. This rocking rod 10
The swing arm 14 that is integrally connected to the base end extends slightly backward from the base end of the swing rod 10 and then extends rearward,
A gap capable of obtaining the required swing displacement amount is formed between the mounting frame 4 located immediately below and the mounting frame 4.

FIGS. 3 to 5 show an example in which the swing displacement mechanism is constructed using a cam structure. The swing arm 14 and the mounting frame 4 are shown.
A spring 16 for repulsive force is attached between and, and a cam follower 15 is rotatably attached to the extended end of the swing arm 14. Immediately above the cam follower 15, a rotating shaft 18 having both ends fixedly supported by bearings 19 and 19 on a fixed frame 3 is attached across the conveying path, and is located directly above the cam follower 15 of the rotating shaft 18. A wide cam roller 17 having a large-diameter cam surface and a small-diameter cam surface is immovably fixed to the location. A bevel gear fixed to the upper end of a drive shaft 21 that is continuously rotated at a constant rotation speed in synchronization with the intermittent transfer operation of the container A is driven at the tip of the rotary shaft 18 protruding from one bearing 19. A bevel gear driven gear 20 meshing with a gear 22 is fixed, and a cam roller 17 is continuously rotated at a constant speed by rotation of a drive shaft 21.

In the case of the swing displacement mechanism shown in FIGS. 3 to 5, as is clear from the configuration, at a certain time during the stop period of the container A being transferred by the intermittent movement during a certain period,
That is, when the container A that is intermittently transferred is stopped at the lid supply position and the lid F is supplied from the lid sterilization supply device 38 onto the collar A1, the cam follower 15 faces the small diameter cam surface of the cam roller 17 that rotates. As a result, the swing arm 14 is pushed up by the elastic force of the spring 16, and the push up of the swing arm 14 causes the swing rod 14 to move.
The tip of 10 is displaced downward and presses the heating piece 11 whose tip is heated onto the lid F on the collar A1, and by this pressing, welding of the temporary seal to the container A of the lid F is achieved. After the pressing of the heating piece 11 against the lid F by the spring 16 is continued for a certain time, the cam roller 17 is rotated. Since the cam follower 15 again faces the large-diameter cam surface of the cam roller 17, the swing arm 14 is rotated and lowered by the cam roller 17 against the elastic force of the spring 16, thereby raising and returning the heating piece 11 from the upper surface of the lid F. It is released and enters the standby state.

The swinging displacement mechanism shown in FIGS. 3 to 5 is driven in synchronization with the intermittent transfer operation itself of the container A, so that it is easy to set the timing for achieving the temporary seal by the heating piece 11. It also has the advantage that it can be achieved accurately.

FIGS. 6 to 8 show an example in which the swing displacement mechanism is configured by using the cylinder 23. The swing plate is fixed to the connecting plate 24 which is fixed between the extended ends of the swing arms 14 in a bridging manner. Immediately above the connecting plate 24, the tip of the cylinder rod of the cylinder 23, which is mounted and fixed to the fixed frame 3 via the mounting frame piece 25, is connected.

In the case of the swing displacement mechanism shown in FIG. 6 to FIG. 8, as is clear from the configuration, supply of the lid body F from the lid body sterilization supply device 38 to the container A stopped at the lid body supply position. If is achieved, the cylinder 15 having the cylinder rod positioned at the forward limit is operated in the direction for retracting the cylinder rod in accordance with the signal for confirming the supply of the lid F, and the swing arm 14 is pulled up. By pulling up the swing arm 14, the swing rod 10 is swung down to press the heating piece 11 against the lid F on the container A, and welding of the temporary seal of the lid F to the container A is achieved.

The swing displacement mechanism shown in FIGS. 6 to 8 is that the container A is transferred to the lid supply position and positioned, and the lid sterilization is performed on the opening of the container A stopped at the lid supply position. The welding temporary sealing operation is performed after confirming that the supply of the lid body F from the supply device 38 has been achieved. Therefore, for some reason, the container A is not located at the lid body supply position, or the container A is covered with the lid body F. If the supply of F is not achieved, the welding temporary sealing operation is not performed. Therefore, it is possible to prevent the accident that the heating piece 11 is directly pressed against the rail R to damage the heating piece 11, and at the same time, the empty space at the time of changing the container A to be handled or the contents to be filled is changed. Since it can be operated in a normal state at the time of operation, the operation of the entire filling and sealing device 36 becomes easy.

In the case of the embodiment shown in FIGS. 3 to 5, the width of the cam roller 17 is large, and in the case of the embodiment shown in FIG. The coupling with the plate 24 is achieved by slidably fitting the pin 14a provided upright on the swing arm 14 into the long hole 24a formed in the connecting plate 24. A pair of rail R intervals are changed in accordance with the change in the size and shape of A,
Even if the position of the mounting frame 4 integrally mounted on the rail R is displaced, it does not hinder the assembly of the swing displacement mechanism to the swing arm 14 that is displaced together with the mounting frame 4. is there.

〔The invention's effect〕

Since the present invention has the above-mentioned configuration, it has the following effects.

Since the supply of the lid onto the container opening is achieved from the side along the transfer direction of the container, a heating piece for heating and welding the lid to the mouth rim of the container for temporary sealing is provided. It can be positioned directly above the rail at the supply position, so that the lid can be welded to the flange by a simple vertical displacement of the heating piece.

The lid supplied to the container from the lid sterilization supply device, which sterilizes the lid while revolving the container along the transfer direction, is welded as it is, so the exact position of the lid of the lid sterilization supply device with respect to the container It is possible to use the ejecting function, and thereby it is possible to completely eliminate auxiliary devices such as a positional deviation correcting device for independently positioning the lid with respect to the container.

Since the heating piece is attached so that it can be changed according to the change in the width direction of the rail, even if the width of the rail is changed in accordance with the change of the container, the temporary sealing position does not need to be adjusted. Therefore, no complicated operation is required for adjusting the temporary seal position.

Since the lid is welded to the container for temporary sealing by simply moving the heating piece up and down, the overall structure of the temporary lid sealing device can be made extremely simple and small, which allows it to be installed in a narrow space. It can be installed without difficulty, and since the operation only requires a simple lifting operation of the heating piece, the operation for heating and welding is extremely easy, so that the operation is easy.

Since the lid supplied to the container from the lid sterilization supply measure is welded and temporarily sealed as it is, there is no opportunity to shift the position of the lid supplied to the container with respect to the container, which ensures accurate positioning. Once achieved, temporary sealing of the lid to the container can be achieved.

In claim 6, since the temporary sealing operation by the heating piece can be performed in synchronism with the intermittent transfer operation of the container, the temporary sealing operation can be achieved at a constant and accurate timing with respect to the supply of the lid to the container. Therefore, the temporary sealing of the lid with respect to the container can be achieved accurately and reliably.

In claim 7, since the temporary sealing operation is performed after confirming the existence of the container and the lid, it is possible to prevent the heating piece from being erroneously operated, thereby preventing the heating piece from being damaged. In addition, the filling and sealing device can be operated in a normal state even during the trial run of the device, which makes it convenient to handle the entire device and obtains high safety.

[Brief description of drawings]

FIG. 1 is a layout diagram showing an example of the positional relationship between other components of the filling and sealing device and the device of the present invention along the container transfer path. FIG. 2 is a front view showing the positional relationship between the main part of the device of the present invention and the lid sterilization supply means. 3 to 5 show one embodiment of the device of the present invention, FIG. 3 is a front view, FIG. 4 is a partially cutaway plan view,
FIG. 5 is a side view seen from the downstream side of the container transfer path. 6 to 8 show another embodiment of the device of the present invention. FIG. 6 is a front view, FIG. 7 is a partially omitted plan view, and FIG. 8 is a downstream side of a container transfer path. It is the side view seen. FIG. 9 is an overall front view showing an example of an aseptic filling and packaging device to which the device of the present invention is assembled. DESCRIPTION OF SYMBOLS 1; Temporary sealing device, 10; rocking rod, 11; heating piece, 14; rocking arm, 15; cam follower, 16; spring, 17; cam roller, 18; rotating shaft, 20; driven gear, 21; Drive shaft, 22; drive gear, 23; cylinder, 24; connecting plate, 25; mounting frame piece, 3; fixed frame, 4; mounting frame, 30; container sterilizer, 31; container supply body, 32; germicide feed Inlet, 33; ultraviolet irradiation device, 34; hot air supply duct, 35; hot air suction duct, 36; filling and sealing device, 37, filling machine, 38, lid sterilizing and supplying device, 39, pickup rod, 40, pressure sealing device, 41, 42; airtight frame, 43; support frame, R; rail, A; container, A1; rim, F; lid.

Front page continuation (72) Inventor Katsuyuki Mogi 380 Sannomiya, Isehara City, Kanagawa Prefecture, Yoshino Industry Co., Ltd.Kanagawa Plant (72) Inventor Tadashi Hanada, 380 Sannomiya, Isehara City, Kanagawa Prefecture, Yoshino Industry Co., Ltd., Kanagawa Plant

Claims (7)

(57) [Claims] 1. A transfer direction of a container, which is supported by at least a pair of rails arranged in parallel in a horizontal direction in a hanging manner by a collar and has been intermittently transferred along the rail at a constant distance for a predetermined distance. A lid that has been sterilized is supplied by a public transfer body that rotates intermittently along, and a part of the portion of the lid that is located on the rail of the peripheral portion that is located on the mouth collar of the container is A temporary sealing method for a container opening portion of a lid body that is welded to a flange of the container by pressing a heating piece. 2. A gap is provided on the rail just above the lid supply position to the container, which allows the lid supplied by the public transfer body along the transfer direction of the container to enter directly above the container. At the same time, a temporary sealing device for the container opening portion of the lid body, in which a heating piece for heating and welding the lid body to the mouth collar of the container is arranged so as to be movable up and down. 3. The position of the heating piece can be changed in the width direction in synchronization with each rail whose widthwise distance can be freely changed in accordance with the change in the mouth collar size of the container. 2. The temporary sealing device described in 2. 4. A base end of the rail is rotatably fixed to a downstream side in a transfer direction of the container with respect to a lid supply position of the rail.
The temporary sealing device according to claim 2 or 3, wherein a swing rod whose tip is vertically swingable is provided immediately above the lid supply position, and a heating piece is attached to the lower surface of the tip of the swing rod. 5. A swing arm is provided with a base end of the swing rod extended, and an up-and-down displacement mechanism for swinging the swing rod is coupled to the swing arm. Temporary sealing device. 6. A cam follower is provided at the extended end of the swing arm, and a spring for exerting a pushing force is provided on the swing arm, and the spring is installed immediately above the cam follower and is rotationally driven in synchronization with intermittent transfer of the container. 6. The temporary sealing device according to claim 5, wherein a cam roller having the cam surface, which is a peripheral surface, in contact with the cam follower is attached and fixed to the rotating shaft. 7. The temporary sealing device according to claim 5, wherein a cylinder for vertically displacing the swing arm is connected to the swing arm.