JPH09169319A - Heat-seal device for container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate handling of a container even if a cooked food with broth is contained in the container, by providing a heat-seal device for a container in which the cover body can be fitted to the peripheral edge of the container opening in the state the broth in the container hardly leaks to the outside regardless of the user's technique of the work. SOLUTION: A container receiver 3 holding the opening peripheral edge A1 of the container A opened at the top, which can be welded with heat, is provided in a movable body which is transferably projected or retracted, through the opening 1a of the casing 1. And a heater 4 is provided in the easing 1 to heat-seal the opening peripheral edge A1 of the container A received at the container receiver 3 and the cover body B placed thereon which can be sealed with heat when the movable body 2 is shifted at the sealing position in the easing 1, in the condition held by the receiver.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in heat sealing technology used for closing an opening of a container for storing cooked food such as oden sold at a convenience store or the like with a lid.

[0002]

2. Description of the Related Art Heretofore, after a lid was attached to an opening of a container for storing cooked foods, the lid and the periphery of the opening of the container were partially fixed with tape.

[0003]

In the above prior art,
Tape loosening due to malfunction of tape fixing work, or
When there is elongation of the tape due to heat generated from the cooked food, the peripheral edge of the opening of the container and the lid are relatively moved in the separating direction, and a gap is easily formed between the peripheral edge of the opening of the container and the lid. . Therefore, in particular, when the cooked food stored in the container is provided with juice, for example, in the case of oden, the container is tilted or the container is shaken while carrying the container, and the juice of the food is juiced. When the container swings inside the container, the juice in the container may leak to the outside from the unsealed gap between the lid and the periphery of the opening of the container, and the leaked juice adheres to the outer surface of the container. There is a problem that the leaked juice adheres to the hands and causes discomfort, and not only the clerk of the convenience store but also the purchaser handles the container storing the food with the juice in this way. Was careful.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to devise a fastening structure between a lid and an opening peripheral portion of a container so that an operator who performs a fastening operation can do so. Irrespective of skill, by providing a container heat sealing device capable of fastening the lid and the opening peripheral portion of the container in a state in which the juice in the container is unlikely to leak to the outside, the container is provided with juice. Even in a case where a cooked food is stored, the handling of the container can be facilitated.

[0005]

According to a first aspect of the present invention, there is provided a heat sealing device for a container, which is characterized in that an upper opening of the container which can be heat-sealed to a movable body which can move in and out through an opening of a casing. A container receiving portion for receiving the peripheral edge portion in a mounted state is provided, and when the movable body moves to the sealing position in the casing, the opening peripheral edge portion of the container received by the container receiving portion and the container are provided in the casing. The point is that a heater mechanism is provided for heat-sealing the mounted heat-sealable lid in a sandwiched state. According to the above-mentioned characteristic configuration, a container storing food with juiciness such as oden is placed on the container receiving portion of the movable body pulled out to the container attaching / detaching position outside the casing, and the lid is attached to this container. When the movable body is pushed into the seal position in the casing and moved, the heater mechanism provided in the casing clamps the peripheral portion of the opening of the container received by the container receiving portion and the lid placed on the movable body. It is heat-sealed in a state. Therefore, by the container heat-sealing device having the above-mentioned characteristic configuration, when the lid and the opening peripheral edge portion of the container are heat-sealed over the entire circumference of the opening peripheral edge, the container is sealed by the lid. It can be closed, and even when the lid and the opening peripheral portion of the container are partially heat-sealed in the opening peripheral direction,
Since the lid and the container are restrained from moving relative to each other in the direction of separation between the lid and the container by thermal fusion with the opening peripheral portion of the container,
It is difficult to open the non-heat-bonded part that is in close contact. Therefore, even when heat-sealed in any of the above states, compared to the conventional case where the container and the lid are partially fixed with tape,
In the middle of carrying a container containing cooked food with juiciness, even if the container tilts or the container is shaken and the juice of food sways inside the container, Since it is possible to prevent the soup from leaking to the outside, the handling of the container can be facilitated. Moreover, since the lid and the peripheral portion of the opening of the container are heat-sealed by the heater mechanism in the casing, the predetermined fastening operation can be performed reliably and safely without touching the heater mechanism or the like.

The heat seal device for a container according to claim 2 of the present invention is characterized in that the heater mechanism is capable of sandwiching an opening peripheral edge portion of a superposed container and a lid body with the container receiving portion. And a heater provided on a sandwiching surface of the sandwiching portion, and a raising / lowering means for switching the sandwiching portion between a heat-sealing position and a standby position separated upward. According to the above characteristic configuration, when the movable body is pushed into the seal position in the casing with the lid attached to the container and moved, the sandwiching portion at the standby position is moved down to the heat fusion position by the elevating means, The opening peripheral portion of the container and the lid placed on the container are sandwiched between the sandwiching portion and the container receiving portion, and in this sandwiched state, the peripheral edge portion of the container and the lid are melted along the heater. Be worn. Therefore, when the food is stored in the container, even if the juice adheres to the peripheral portion of the opening of the container, it is known that it adheres to the container, but it does not flow down or drip and adhere to the heater, and the adherence of the juice to the heater. It is possible to suppress the occurrence of electrical troubles such as a short circuit caused by.

The heat seal device for a container according to claim 3 of the present invention is characterized in that, when the movable body protrudes and moves to a container attaching / detaching position outside the casing, the container received by the container receiving portion is raised. Moreover, when the movable body moves from the container attaching / detaching position to the inside of the casing, a container elevating mechanism is provided for lowering the container to a position where the peripheral edge portion of the container is placed on the container receiving portion. According to the above characteristic configuration, at the container attaching / detaching position, a gap can be formed between the container peripheral portion and the opening peripheral edge portion of the container received by the container receiving portion. Therefore, in the container attaching / detaching position, it becomes easy to grasp the opening peripheral portion of the container with fingers,
This facilitates and speeds up the work of attaching and detaching the container to and from the container receiving portion.

According to a fourth aspect of the present invention, there is provided a heat sealing device for a container, characterized in that an urging mechanism for urging and moving the movable body to a container attaching / detaching position, and the movable body being pushed and moved to a sealing position in a casing. And a locking mechanism that locks and holds the movable body at the seal position against the biasing force of the biasing mechanism, and the locking mechanism based on a signal indicating that the heat fusion by the heater mechanism is completed. And a lock releasing means for releasing the lock. According to the above configuration, the container is received in the container receiving portion of the movable body at the container attaching / detaching position in a mounted state, and when the movable body is pushed to the sealing position against the urging force of the urging mechanism, the movable body is moved. The body is locked by the locking mechanism and held in the sealed position. After the completion of the heat fusion, the locked state of the movable body and the locking mechanism is automatically unlocked by the unlocking means, and the movable body is moved to the container detaching position by the urging force of the urging mechanism. It is protruded and moved to. Therefore, the movable body on which the container is placed is simply pushed into the sealing position in the casing, and the movable body is automatically sent out after the completion of the heat fusion. Can be simplified, and there is no possibility that the container having undergone the heat fusion is forgotten and left in the casing.

According to a fifth aspect of the present invention, there is provided a heat sealing device for a container, characterized in that a heat seal device for a container is provided between a bottom portion in the casing and a guide rail for guiding the movable body to move back and forth.
The present invention is characterized in that a plurality of elastic bearings are provided for supporting the guide rail downward so as to be elastically displaceable. According to the above-mentioned characteristic configuration, the vibration of the movable body that moves back and forth while being guided by the guide rail can be absorbed by the downward elastic displacement of the elastic support body, so that the vibration of the movable body is not easily transmitted to the casing. It is possible to suppress the generation of noise due to the moving of the movable body.

According to a sixth aspect of the present invention, there is provided a heat sealing device for a container, characterized in that a heat seal device for a container is provided between a bottom portion in the casing and a guide rail for guiding the movable body to move back and forth.
A plurality of elastic bearings are provided to displace the guide rail so as to be displaceable downward, and a movable body is provided at the bottom in the casing as the holding portion of the heater mechanism is pressed against the container receiving portion. Is provided with a load receiving portion that comes into contact with the lower surface of the movable body when the movable body is displaced downward by a predetermined amount against the elastic restoring force of the elastic bearing body. According to the above-mentioned characteristic configuration, the pressing force between the holding portion and the container receiving portion is applied to the elastic restoring force of the elastic bearing body elastically deformed along with the guide rail displaced downward together with the movable body, and the lower surface of the movable body receives the load. It can be received by the reaction force when contacting the part. Therefore, when the holding portion and the container receiving portion are pressed against each other, only a part of the pressing force acts on the guide rail, and the other pressing force is received by the load receiving portion on the casing via the movable body. Therefore, as compared with a configuration in which the entire pressure contact force is received by the elastic restoring force of the elastic support via the guide rail, the mechanical required strength of the guide rail can be suppressed to be low, and the degree of freedom in design can be increased. .

According to a seventh aspect of the present invention, there is provided a heat sealing device for a container, characterized in that the movable member is projected to a container detaching position by the urging mechanism between a bottom portion of the casing and a lower surface of the movable member. The point is that a braking force applying means for applying a braking force to the movement is provided. According to the above-mentioned characteristic configuration, while the urging force of the urging mechanism is set to an urging force capable of reliably moving the movable body at the seal position to the container attaching / detaching position, the container attaching / detaching of the movable body is performed. The projecting movement speed to the position can be reduced to an appropriate speed by the braking force applying means.

The heat seal device for a container according to claim 8 of the present invention is characterized in that the heater mechanism is provided on the container received by the container receiving portion when the movable body moves to a sealing position in the casing. The point is that a sensor for detecting the presence or absence of the lid is provided. According to the above feature configuration,
Even if the container receiver is moved to the sealing position without placing the lid on the container received by the container receiver, the sensor detects that the lid is not mounted on the container even if the container receiver is moved to the sealing position. Further, it is possible to prevent the heater mechanism from operating without the lid placed on the container.

According to a ninth aspect of the container heat-sealing device of the present invention, the movable body is provided with a cover body for closing the opening of the casing when the movable body moves to a sealing position in the casing. There is a point. According to the above-mentioned characteristic configuration, the opening of the casing is closed only by moving the movable body to the sealing position. For example, after the movable body is moved to the sealing position, the movable body is separately provided at the opening of the casing so as to be freely opened and closed. The operation can be simplified as compared with the operation of closing the cover body.

The heat seal device for a container according to claim 10 of the present invention is characterized in that the container receiving portion is configured to be separable from the movable body. According to the above-mentioned characteristic configuration, when the container receiving portion and the upper surface of the movable body are soiled with juice or the like, the container receiving portion can be removed from the movable body and washed, and the upper surface of the movable body can be cleaned with the container receiving portion removed. Can be wiped off, so that the upper surface of the container receiving portion and the movable body can be easily cleaned, and thus the sanitary state of the upper surface of the container receiving portion and the movable body with which the container in which the food is stored contacts or approaches. Easy to secure.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 7 show upper parts each made of a synthetic resin material which is heat-fusible with each other and which is suitable for storing cooked foods, for example hot oden. The container A having the opening and the lid B are heat-sealed, and the lid B is adhered to the opening of the container A with such adhesive strength that the lid B can be easily separated from the container A by hand. 1 shows a preferred embodiment of a container heat sealing apparatus according to the present invention. As shown in FIGS. 1 to 5, the container heat-sealing device according to the present embodiment has a horizontal posture through a substantially rectangular parallelepiped casing 1 made of sheet metal and an opening 1a formed on one side surface of a side wall of the casing 1. A movable body 2 made of a metal plate which can be moved in and out by a receiving surface 3a which is provided on the upper surface of the movable body 2 and which receives the flange-shaped opening peripheral portion A1 integrally formed with the container A in a mounted state. The container A provided with the container receiving part 3 and the container A received in the receiving surface 3a of the container receiving part 3 when the movable body 2 is pushed into the casing 1 and moved to the sealing position. It is composed of a heater mechanism 4 for heat-sealing the overlapping portion of the opening peripheral edge portion A1 and the peripheral edge portion of the lid body B placed on the opening peripheral edge portion A1 with the container receiving portion 3 in a sandwiched state. The opening 1a of the casing 1 is formed in a horizontally-long rectangular shape allowing passage of the container receiving portion 3 which can move in and out together with the movable body 2, and the movable body 2 is provided with the movable When the body 2 moves to the sealing position in the casing 1, a sheet metal cover body 2a for closing the opening 1a of the casing 1 is fixed.

As the container A which can be heat-sealed by the container heat-sealing device of the present embodiment, the opening peripheral edge portion A1 is formed in a brim-shaped annular ring, and the container portion A2 is in a bottomed cylindrical shape. The lid B is formed so that its diameter is substantially the same as the outermost diameter of the opening peripheral edge portion A1 of the container A or slightly smaller than the outermost diameter of the opening peripheral edge portion A1 of the container A. It is formed in a large circular shape.

As shown in FIGS. 1 to 3, the container receiving portion 3 allows the container portion A2 of the container A to be inserted and also allows the opening peripheral edge portion A1 of the container A to be inserted into contact with the edge. And an annular peripheral surface at the upper end of the cylindrical body is formed as the receiving surface 3a of the opening peripheral edge portion A1 of the container A. The container receiving portion 3 is detachably attached to the movable body 2 with bolts 5. The heater mechanism 4 is located above the container receiving portion 3 at the seal position, and is attached to a mounting table 7 supported by four columns 6 standing upright from the bottom in the casing 1. .

As shown in FIGS. 4 and 7, each of the pair of left and right slide rails 8 attached to the lower surface of the movable body 2 is fitted in the casing 1 to form the movable body 2.
A pair of left and right guide rails 9 are provided to guide the slide rails back and forth between a sealing position inside the casing 1 shown in FIG. 2 and a container attaching / detaching position outside the casing 1 shown in FIG. The guide rail 9 is supported by two rubber elastic bearings 10 fixed to the bottom in the casing 1 along the moving direction of the movable body 2, and each guide is elastically compressed by the elastic bearing 10. The rail 9 is configured to be displaceable downward.

As shown in FIG. 4, the movable body 2 urges the movable body 2 to project and move from the seal position to the container attachment / detachment position.
A locking mechanism 12 for locking and holding the movable body 2 at the sealing position against the urging force of the urging mechanism 11 when the movable body 2 is pushed into the sealing position;
Locking release means 13 for unlocking the locking mechanism 12 on the basis of a signal indicating that the thermal fusion of the overlapping portion of the opening peripheral edge portion A1 of the container A and the lid body B has been completed. There is. The biasing mechanism 11 includes a swing arm 14 pivotally supported on the bottom of the casing 1 around a vertical axis, and biases the swing arm 14 toward the opening 1 a of the casing 1. And a long hole 1 formed at the tip end side of the swing arm 14.
The distal end of the shaft member 16 fixed to the lower surface of the movable body 2 is inserted and held in 4a. Accordingly, as the swing arm 14 swings toward the opening 1a side of the casing 1 due to the elastic restoring force of the coil spring 15, the movable body 2 is pressed by the swing arm 14 via the shaft member 16, and While being moved and guided by the guide rail 9, it is projected and moved to the container attaching / detaching position. The long hole 14a absorbs a change in the distance between the swing shaft center of the swing arm 14 and the shaft member 16 due to the swing movement of the swing arm 14.

The locking mechanism 12 is engaged with the engaging hole 17 formed in the movable body 2, and is engaged with the engaging hole 17 when the movable body 2 is pushed and moved to the seal position. It is composed of a locking claw 18 for preventing the protruding movement toward the container attaching / detaching position side. The locking claw 18 is provided on a side wall facing the opening 1 a in the casing 1 so as to be swingable about a horizontal axis, and is capable of engaging with the engaging hole 17 by the urging force of the coil spring 19. It is held in a posture. Also,
The locking claw 18 is linked to an electromagnetic solenoid as the locking release means 13 and is output from a control device provided in a control unit 43 disposed on the mounting table 7. A signal indicating that the heat fusion by the heater mechanism 4 has been completed, for example, a signal indicating that the heating by the heater mechanism 4 has been completed and that a holding portion 25 of the heater mechanism 4 to be described later has risen from the heat fusion position to the standby position. When the electromagnetic solenoid 13 is actuated based on this, the locking claw 18 is swung in the locking releasing direction (the direction indicated by the arrow K in FIG. 2) against the urging force of the coil spring 19, and The engagement is forcibly released, and the movable body 2 is protruded from the sealing position to the container attaching / detaching position by the urging mechanism 11. An operation hole 20 is formed through the side wall of the casing 1 provided with the locking claw 18. A finger or the like is inserted through the operation hole 20 from outside the casing 1, and the locking claw 18 is inserted.
Can be forcibly operated in the unlocking direction against the urging force of the coil spring 19. Therefore, when a power failure occurs during heat fusion and the movable body 2 remains pushed into the casing 1, the locking claw 1 is passed through the operation hole 20.
8 by forcibly swinging in the unlocking direction.
The movable body 2 can be protruded to the container detaching position outside the casing 1 and the container A is kept in the casing 1 until power is supplied.
Can be avoided.

As shown in FIGS. 3 and 4, between the bottom of the casing 1 and the lower surface of the movable body 2, the urging mechanism 11 prevents the movable body 2 from projecting to the container attaching / detaching position. A braking force applying means 21 for applying power is provided, and the braking force applying means 21 is provided at the bottom of the casing 1 to move the movable body 2.
And a rack 22 formed along the moving direction of the movable body 2 and having a dimension longer than a length corresponding to the moving distance of the movable body 2, and the shaft meshing with the rack 22 and provided on a lower surface of the movable body 2. And a gear 24 rotatably supported by a bracket 23 disposed at the lower end of the member 16.
Therefore, when the movable body 2 projects to the container attaching / detaching position, a braking force is applied to the movable body 2 projecting to the container attaching / detaching position due to the rotational resistance of the gear 24.

As shown in FIGS. 1 to 3, the heater mechanism 4 holds the opening peripheral edge portion A1 of the superposed container A and the lid B between the receiving surface 3a of the container receiving portion 3. The sandwiching part 25 made of a disc-shaped aluminum die cast, and elevating means 26 for vertically moving the sandwiching part 25 up and down.
The opening peripheral portion A1 and the lid B of the container A, which are provided in a portion of the holding surface 25a of the holding portion 25 facing the receiving surface 3a of the container receiving portion 3 and are superimposed on the entire periphery thereof, And an annular heater 27 which is heat-sealed and seals the container A with the lid B. Further, the holding portion 2
As shown in FIG. 3, the opening peripheral portion A1 of the container A and the lid B, which are superimposed on each other, are received by the lifting / lowering means 26 by the lifting / lowering means 26. The receiving surface 3a of the container receiving portion 3 and the holding surface 25a of the holding portion 25. 2 and a standby position for releasing the holding state with the container receiving portion 3 by separating upward and releasing the holding state as shown in FIG. .

The ascending / descending means 26 comprises a movable rod 28 which is movable up and down in the vertical direction, and an electromagnetic solenoid 29 for operating the movable rod 28 to move in and out. The electromagnetic solenoid 29 is mounted on the mounting table 7. The nipping portion 25 is fixed to the lower end of the movable rod 28 which is held and held and which projects downward from the mounting table 7.

When the movable body 2 moves to the sealing position in the casing 1, the holding portion 25 of the heater mechanism 4 detects the presence or absence of the lid B on the container A received by the container receiving portion 3. If the photo sensor 30 is provided and the photo sensor 30 detects that the lid B is not present on the container A, the operation of the heater mechanism 4 by the control device is stopped, and the lock release means is provided. The electromagnetic solenoid 13 is operated to move the movable body 2 to the urging mechanism 11
As a result, the container is projected from the sealing position to the container attaching / detaching position.

As shown in FIG. 6A, the heater 2
7 is formed by forming a thin plate made of an alloy of nickel and chromium into a U-shape as viewed in the plate thickness direction by pressing or the like, and bending straight portions at both ends thereof by 90 degrees in the plate thickness direction. And a pair of heater wires 27A having the same shape. As shown in FIG. 6B, the heater 27 is formed in an annular shape by joining both heater wires 27A in a state where the bent portions 27a are in surface contact with each other.
The outer peripheral edge and the inner peripheral edge are concentric. In the heater 27, an annular portion is configured as a heating portion 27 b, and a pair of protruding pieces 27 c formed of a joint between the bent portions 27 a is configured as a connection terminal portion serving as both poles of the heater 27. Therefore, in a heater configured to provide a pair of connection terminal portions at opposing locations on the outer peripheral edge of the annular heating portion and to allow current to flow from both connection terminal portions, the heater may be connected to the connection terminal portion of the heating portion. In the connection portion, the current flows more easily on the connection terminal portion side than on the inner peripheral edge side, and the heating temperature of the entire heating portion tends to be non-uniform. However, in the heater 27 configured as described above, When a current flows from 27b,
Since the current flows almost uniformly over the entire area of the heating section 27b of the heater 27, the entire area of the heating section 27b is almost uniformly heated, and the opening peripheral portion A1 and the lid B of the container A overlapped.
Can be heat-sealed almost uniformly.

As shown in FIG. 4, the movable body 2 together with the guide rail 9 and the elastic bearing body 10 are provided at four bottom portions in the casing 1 as the holding portion 25 is pressed against the container receiving portion 3. When it is displaced downward by a predetermined amount against the elastic restoring force of the movable body 2, the movable body 2 is brought into contact with the lower surface of the movable body 2 to receive the load when the clamping portion 25 presses the container receiving portion 3, and the movable body 2 is further moved. Further, a block-shaped load receiving portion 31 made of metal and provided with a cushioning member 31a made of synthetic resin is provided on the upper surface side to prevent the guide rail 9 from moving downward.

As shown in FIGS. 1 and 2, at the position on the upper surface of the movable body 2 facing the internal space of the container receiving portion 3,
When the movable body 2 is protruded and moved from the sealing position to the container attaching / detaching position, the container A received on the receiving surface 3a of the container receiving portion 3 is raised, and the movable body 2 moves from the container attaching / detaching position to the inside of the casing 1. When the container A is opened, the opening peripheral portion A1 of the container A is placed on the receiving surface 3a of the container receiving portion 3, and the container A is lowered to a position where the container A is held in a suspended state by the container receiving portion 3. An elevating mechanism 32 is provided. The container lifting / lowering mechanism 32 is disposed in the internal space of the container receiving portion 3 and is provided on a lower surface side of the movable body 2 with a disk-shaped lifting / lowering table 33 for receiving and raising / lowering the container. And an elevating device 34. The lift table 33 is supported by the movable body 2 via a support shaft 35 fixed to the lower surface of the lift table 33 so as to be movable up and down. The elevating device 34 is provided in a case 36 fixed to the lower surface of the movable body 2 and opened in the direction of the seal position.
A plate-shaped pressing operation body 37 having a cam surface 37a which is movably held in the direction in which the container is attached and detached, and has a cam surface 37a which is located at an end on the container attaching / detaching position side and is located higher as the container attaching / detaching position side; A coil spring 38 that urges the operating body 37 toward the container attaching / detaching position, and engages with the pressing operating body 37 while the movable body 2 protrudes from the sealing position to the container attaching / detaching position. And an engagement piece 39 provided at the bottom in the casing 1 for preventing further movement to the container attaching / detaching position. When the movable body 2 is in the sealing position, the lower end of the support shaft 35 of the lift 33
a substantially horizontal plane 3 of the pressing operation body 37 closer to the seal position than “a”.
The elevating table 33 is lowered by being supported in contact with the 7b. When the movable body 2 moves from the sealing position to the container attaching / detaching position, the pressing operation body 37 is moved in the middle of the movement.
When the locking member 39 in the casing 1 is engaged with the locking member 39, the movement of the pressing operation body 37 to the container attaching / detaching position is stopped thereafter, and only the movable body 2 is pressed against the urging force of the coil spring 38 to prevent the container from moving. Since it moves to the attaching / detaching position, the support shaft 3
The lower end of 5 moves to the cam surface 37a side of the pressing operation body 37, and the lower end of the support shaft 35 of the elevator 33 rides on the cam surface 37a, and the elevator 33 rises. When the movable body 2 moves from the container attaching / detaching position to the inside of the casing 1, the pressing operation is performed until the leading edge of the pressing operation body 37 on the container attaching / detaching position side contacts the inner surface of the side wall of the case 36 on the container attaching / detaching position side. Since the operating body 37 is held in position by the urging force of the coil spring 38, the lower end of the support shaft 35 of the lift 33 that rides on the cam surface 37 a of the pressing operating body 37 is
The lifting table 33 moves down from 7a to the substantially horizontal surface 36b of the pressing operation body 37 closer to the seal position than the cam surface 37a, and the movable body 2 moves to the seal position. Specifically, the elevating table 33 is lowered just before the container receiving section 3 enters the opening 1 a of the casing 1.

Next, the process for heat-sealing the container A and the lid B by the container heat-sealing device of the embodiment will be described with reference to FIGS. The movable body 2 is locked and held at a sealing position by a locking mechanism 12 in a state where the movable body 2 is pushed into the casing 1 during the non-thermal fusion work.
When the switch 40 disposed above the opening 1a in the side wall of the casing 1 is operated at the start of the heat fusion work, a power lamp 41 disposed beside the switch 40 by the control device is operated. Is turned on, the electromagnetic solenoid 13 serving as the unlocking means is operated, the locking mechanism 12 is unlocked, and the movable body 2 is moved from the sealing position inside the casing 1 by the urging mechanism 11 to the outside of the casing 1. Projecting to the container attaching / detaching position, and accordingly, the elevating device 34 of the container elevating mechanism 32 operates to raise the elevating table 33. After the movable body 2 protrudes to the container attaching / detaching position, the container A containing the cooked food, for example, the hot oden C together with the juice C1 is inserted into the container receiving portion 3 from above and moved to the ascending position. The movable body 2 is placed on the lift 33 and the lid B is placed on the container A.
The movable body 2 is pushed into the casing 1 against the urging force of the urging mechanism 11 until the is locked at the sealing position by the locking mechanism 12. In addition, when the movable body 2 is pushed into the casing 1, the elevating device 34 of the container elevating mechanism 32 operates in the opposite manner to the projecting movement of the movable body 2 and moves up and down the platform 3.
3, the container A descends until the opening peripheral portion A1 is received by the receiving surface 3a of the container receiving portion 3. When a limit switch (not shown) detects that the movable body 2 has been pushed into the sealing position and locked and held by the locking mechanism 12, the photo sensor 30
Is activated, and the presence or absence of the lid B on the container A received by the container receiving portion 3 is detected by the photo sensor 30,
When the lid B does not exist, the electromagnetic solenoid 13 as the unlocking means is operated to unlock the locking mechanism 12, and the movable body 2 is attached without performing heat fusion by the heater mechanism 4. The urging mechanism 11 protrudes and moves to the container attaching / detaching position. When the photosensor 30 detects that neither the container A nor the lid B is present in the container receiving portion 3, the switch 40 is automatically turned off to turn off the power lamp and the movable body 2 is sealed. Locking mechanism in position 1
It is stored while being locked and held by 2 to be in a non-thermal fusion work state. When the movable body 2 is at the sealing position and the photo sensor 30 detects that both the container A and the lid B are present in the container receiving portion 3, the elevating means 26 of the heater mechanism 4 is operated by the control device. Then, the sandwiching portion 25 descends from the standby position to the heat-sealing position, and sandwiches the overlapping portion of the opening peripheral edge portion A1 of the container A and the peripheral edge portion of the lid B with the receiving surface 3a of the container receiving portion 3. However, the sandwiched portion is heat-sealed over the entire circumference by heating by the heater 27,
A container A containing a warm oden C and its juice C1 is sealed with a lid B. The material and thickness of the container A and the lid B are determined according to the material and thickness of the container A and the lid B so that the adhesive strength of the heat-fused holding portion is such that the lid B can be easily peeled off from the container A by hand. Thus, the heating time and the heating temperature of the heater 27 are adjusted. When the heat fusion by the heater 27 is completed, the elevating means 26 is activated to return the holding portion 25 from the heat fusion position to the standby position, and the electromagnetic solenoid 13 as the lock releasing means is activated. The locking mechanism 12 is unlocked, the movable body 2 is projected and moved by the urging mechanism 11 to the container attaching / detaching position, and the receiving surface 3 of the container receiving portion 3 formed by raising the container A by the container elevating mechanism 32.
A finger is inserted into the gap between a and the opening peripheral portion A1 of the container A, and the container A having the lid B heat-sealed is taken out from the container receiving portion 3. In addition, on the mounting table 7 in the casing 1, when the switch 40 is activated, a warning sound for notifying that the movable body 2 projects from the sealing position in the casing 1 to the container attaching / detaching position, heat fusion, or the like. A sound device 42 including a buzzer, a speaker, and the like that generates a sound such as an end sound for notifying the end of the operation, a warning sound for notifying that the lid B is not present on the container A, or the like is provided.

[Other Embodiments] In the above embodiment, the shape of the container receiving portion 3, the shape of the holding portion 25 and the heater 27 of the heater mechanism 4, and the shape of the elevating table 33 of the container elevating mechanism 32 are the shapes of the container A and the lid B to be heat-fused Can be changed as needed. For example,
The opening peripheral part A1 of the container A is formed in a flanged square ring, and the container part A2 is formed in a bottomed square cylindrical shape,
When the lid B is formed in a square shape overlapping the opening peripheral portion A1 of the container A, the container receiving portion 3 allows the container portion A2 of the container A to be inserted, and the opening peripheral portion of the container A A1 is formed of a rectangular cylinder penetrating in the up-down direction, which can prevent insertion of A1 by contact with the edge, and the holding portion 25 of the heater mechanism 4 is formed by a lid and an opening peripheral portion A1 of the stacked container A. The body B is formed in a rectangular shape that can be sandwiched between the receiving surface 3a of the container receiving portion 3 and the heater 27 is formed in a rectangular annular shape opposed to the receiving surface 3a of the container receiving portion 3. You may. Further, the container receiving portion 3 having different specifications such as shape and size, the holding portion 25 and the heater 27 of the heater mechanism 4, and a large number of elevating tables 33 of the container elevating mechanism 32 are prepared, and the shape and size of the container A are prepared. Of the container receiving portion 3, the holding portion 25 of the heater mechanism 4 and the heater 27,
Further, the lifting table 33 of the container lifting mechanism 32 may be configured and implemented so that it can be appropriately replaced according to the shape and dimensions of the container A to be heat-sealed. 2. The heater 27 may be provided in the container receiving portion 3, and the container receiving portion 3 may also be used as the heater mechanism 4.
In this case, at the sealing position in the casing 1, at the portion above the container receiving portion 3, the opening peripheral portion A1 of the overlapped container A and the lid B can be sandwiched between the container receiving portion 3 and A section 25 and elevating means for switching the sandwiching section 25 between a heat-sealing position and a standby position separated upward are provided. 3. The movable body 2 may be configured to move in and out by an actuator such as an air cylinder or a hydraulic cylinder in place of the urging mechanism 11, or to move in and out by driving a pantograph mechanism by an electric motor or the like. May be configured. 4. The movable body 2 may be configured to move in and out by rotating the gear 24 constituting the braking force applying means 21 forward and backward by an electric motor or the like, instead of the urging mechanism 11. In this case, the braking force applying means 21 becomes a part of the moving device of the movable body 2. 5. The elevating means 26 of the heater mechanism 4 may be constituted by an actuator such as an air cylinder or a hydraulic cylinder in place of the electromagnetic solenoid. It may be constituted by a link mechanism or a cam mechanism that switches between the position and the heat fusion position and moves up and down. 6. The heater mechanism 4 is provided between the container receiving portion 3 and the opening peripheral portion A1 of the container A received by the container receiving portion 3 and the overlapping portion of the peripheral portion of the lid B placed on the opening overlapping portion A1. A roller that can be clamped by and is rotatable around the horizontal axis, rotation means that rotates the roller along the overlapping portion, and a heater provided on the outer peripheral surface of the roller, and is movable. When the upper surface of the overlapping portion comes into contact with the outer peripheral surface of the roller along with the movement of the body 2 to the sealing position side, this superimposing between the outer peripheral surface of the roller and the container receiving portion 3 while the roller is rotating. While holding the part, the movable body 2
When is located at the seal position, the rotation means causes the roller to rotate while rotating along the overlapping portion,
You may comprise so that the said overlap part may be heat-fused by a heater. In this case, the vertical position of the roller is fixed to the heat-sealing position. 7. As the heater mechanism 4, instead of the heater 27,
The microwave generator may be provided to heat and fuse the overlapping portion of the opening peripheral edge portion A1 of the container A and the peripheral edge portion of the lid body B with microwaves to heat-bond them. 8. The elevating device 34 of the container elevating mechanism 32 may be configured by an actuator such as an electromagnetic solenoid, an air cylinder, and a hydraulic cylinder.
The lifting and lowering operation is performed based on a signal based on the moving direction and the position of the movable body 2 detected by the sensor. 9. The locking mechanism 11 is composed of an electromagnet provided on the casing 1 side and a magnetic body provided on the movable body 2 side, and by the attraction force between the electromagnet and the magnetic body,
The movable body 2 may be configured to be able to be suction-held at the sealing position. In this case, the lock release means 13 is a switch for turning off the power supply to the electromagnet. 10. The elastic bearing body 10 may be formed of a leaf spring or a coil spring bent in a wave shape. 11. The load receiving portion 31 may be formed of a cylindrical member made of synthetic resin. 12. As the braking force applying means 21, the casing 1 is used.
From a coil spring that is provided across the inner bottom and the lower surface of the movable body 2 and that biases the movable body 2 toward the seal position side with a biasing force that is weaker than the moving force of the movable body 2 due to the biasing force of the biasing mechanism 11. You may comprise. 13. Sensor 3 for detecting the presence or absence of lid B on container A
0 is not limited to the photo sensor,
It may be a contact-type sensor or an ultrasonic sensor. 14． The movable body 2 may be configured so as to be able to move back and forth through an opening 1 a formed on the upper surface of the casing 1. In this case, the heater mechanism 4 is configured to be horizontally movable in the casing 1 in order to allow the movable body 2 to move up and down. 15. In the above-described embodiment, while sandwiching the overlapping portion between the opening peripheral portion A1 of the container A and the peripheral portion of the lid B,
Although the sandwiched portion is heat-sealed and sealed by heating the heater 27 over the entire circumference, the sandwiched portion may be partially heat-sealed by the heater 27.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state in which a movable body has moved to a container attaching / detaching position.

FIG. 2 is a cross-sectional view showing a state where a movable body has moved to a sealing position.

FIG. 3 is a front sectional view showing a state where a holding portion is lowered to a heat fusion position.

FIG. 4 is a horizontal sectional view of a bottom portion in the casing.

FIG. 5 is a perspective view showing a state where the movable body has moved to a container attaching / detaching position.

FIG. 6 is a perspective view of a heater.

FIG. 7 is an enlarged sectional view of a guide rail portion.

[Explanation of symbols]

 A container A1 opening peripheral portion B lid body 1 casing 1a opening 2 movable body 2a cover body 3 container receiving portion 4 heater mechanism 9 guide rail 10 elastic bearing body 11 biasing mechanism 12 locking mechanism 13 locking release means (electromagnetic solenoid) 21 Braking Force Applying Means 25 Clamping Part 25a Clamping Surface 26 Lifting Means 27 Heater 30 Sensor 31 Load Receiving Part 32 Container Lifting Mechanism

Claims (10)

[Claims] 1. A state in which an opening peripheral portion (A1) of a container (A) having an upper opening capable of heat fusion is placed on a movable body (2) which can move in and out through an opening (1a) of a casing (1). A container receiving portion (3) for receiving the movable body (2) in the casing (1) is provided in the casing (1).
When moved to the inner seal position, the container receiving part (3)
Opening edge part (A1) of the container (A) received by
A heat seal device for a container, which is provided with a heater mechanism (4) for heat-sealing a heat-sealable lid body (B) placed on this and the heat-sealable lid body. 2. A holding mechanism for allowing the heater mechanism (4) to hold the opening peripheral portion (A1) and the lid (B) of the stacked containers (A) between the container receiving portion (3). Department (2
5), elevating means (26) for switching the sandwiching portion (25) between the heat-sealing position and the standby position separated upward, and a heater provided on the sandwiching surface (25a) of the sandwiching portion (25). The heat-sealing device for a container according to claim 1, which is composed of (27). 3. The container (A) received by the container receiving portion (3) is raised and movable when the movable body (2) projects and moves to a container detaching position outside the casing (1). The body (2) moves from the container attachment / detachment position to the casing (1).
When moving inward, the periphery of the opening (A) of the container (A)
The container heat-sealing device according to claim 1 or 2, further comprising a container elevating mechanism (32) for lowering the container (A) to a position where the container (1) is placed on the container receiving portion (3). 4. An urging mechanism (11) for urging the movable body (2) to project into and out of the container, and when the movable body (2) is pushed into a sealing position in the casing (1) and moved. , The locking mechanism (12) that locks and holds the movable body (2) at the seal position against the biasing force of the biasing mechanism (11), and that the heat fusion by the heater mechanism (4) is completed. The container heat-sealing device according to claim 1, 2 or 3, further comprising: an unlocking means (13) for unlocking the locking mechanism (4) on the basis of the signal of. 5. The guide rail (9) can be elastically displaced downward between a bottom portion of the casing (1) and a guide rail (9) for guiding the movable body (2) to move back and forth. The heat-sealing device for a container according to any one of claims 1 to 4, further comprising a plurality of elastic bearings (10) supported on the. 6. A guide rail (9) is displaceable downward between a bottom portion of the casing (1) and a guide rail (9) for guiding the movable body (2) to move back and forth. A plurality of elastic bearings (10) for supporting are provided, and a holding portion (25) of the heater mechanism (4) is provided at the bottom of the casing (1) with a container receiving portion (3).
When the movable body (2) is displaced downward by a predetermined amount against the elastic restoring force of the elastic bearing body (10) as it is pressed against the load, the load receiver contacts the lower surface of the movable body (2). Department (3
The heat-sealing device for a container according to claim 2, 3 or 4, wherein 1) is provided. 7. Between the bottom of the casing (1) and the lower surface of the movable body (2), the urging mechanism (11) prevents the movable body (2) from projecting to the container attaching / detaching position. A braking force applying means (21) for applying power is provided.
The heat seal device for containers according to the above. 8. The heater mechanism (4) has a container (A) which is received by the container receiving portion (3) when the movable body (2) moves to a sealing position in the casing (1). (30) that detects the presence or absence of the lid (B) of the
The heat-sealing device for a container according to any one of claims 1 to 7, further comprising: 9. The movable body (2) is provided on the movable body (2).
A cover body (2a) for closing an opening of the casing (1) when is moved to a sealing position in the casing (1).
The heat-sealing device for a container according to any one of claims 1 to 8, further comprising: 10. The container receiving portion (3) is a movable body (2).
The container heat-sealing device according to any one of claims 1 to 9, wherein the heat-sealing device is separable from the heat-sealing device.