JP3277009B2 - Sealing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing device for sealing or cooling a body to be sealed, such as a bag, by heating or self-heating, in which a sealing step and a cooling step for the body to be sealed are continuously performed. The present invention relates to a sealing device which can be performed at a time.

[0002]

2. Description of the Related Art Conventionally, an automatic filling and sealing device has been used as an automatic machine for performing a process of filling a plastic film bag with contents and further sealing and sealing the mouth of the bag. A conventional automatic filling and sealing device is provided with an intermittent rotary table provided with a plurality of sets of holding claws for holding a bag, and when the intermittent rotary table is rotated intermittently and stopped, each of the holding claws is turned into a bag body. To the supply portion of the bag, the mouth opening portion of the bag, the contents filling portion, the sealing portion for sealing the mouth of the bag, the cooling portion for cooling the sealed portion, and the discharging portion. Then, the bag supplied from the supply unit of the bag is held by the holding claws and intermittently circulates, and for each station to be stopped, filling of contents, sealing of the mouth, cooling of the sealed portion, etc. are sequentially performed, It is further discharged.

[0003]

The above-mentioned conventional automatic filling and sealing apparatus has the following problems. (1) The bag held by the holding claws is stopped for a certain period of time at each station of the sealing unit and the cooling unit, and during this stopping time, filling of contents, sealing of the mouth, cooling of the sealing unit, and the like are performed. Therefore, this stop time is wasted, and there is a limit in improving the number of processes per unit time.

[0004] (2) When the contents to be filled in the bag are liquid, the contents orbit around the predetermined angle after being filled in the bag,
Further, when stopping at the seal portion or the like, a sudden change in the orbiting speed causes a problem that the liquid jumps out of the mouth portion of the bag or adheres to a sealing portion of the bag to cause a defective seal.

In such a case, the bag is held and continuously circulated at a constant speed, and a sealing member is brought into close contact with the bag during a certain circling angle to seal the mouth portion. It is preferable to adopt a structure in which the cooling member is brought into close contact with the seal portion and cooled at a predetermined rotation angle. However, if the seal member and the cooling member are brought into close contact with the bag body rotating at a constant speed by a separate mechanism, the transition from the sealing step to the cooling step is not performed smoothly, and the sealing member and the cooling member are not provided. Are also complicated.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems. The present invention enables a shift from a sealing step for a sealed body such as a bag body to a cooling step in a short time, for example, by rotating the sealed body at a constant speed. It is another object of the present invention to provide a sealing device capable of continuously performing sealing and cooling with a simple structure.

[0007]

Sealing device according to the present invention SUMMARY OF], the holding member circumferentially to hold the cooling member and the seal body disposed alongside the seal member of the seal member Toko
A plurality of support tables provided along the
Rotation driving means for continuously rotating the cable, and the support
While the table is rotating, relative moving means for relatively moving the sealing portion of the sealed body from a position facing the sealing member to a position facing the cooling member,
When the sealing portion is opposed to the sealing member, the sealing operation is performed by bringing the sealing member into close contact with the sealing portion.
Allowed, and the seal portion after the seal is opposed to the cooling member
Perform cooling the cooling members in close contact with the seal portion to come
And a driving means for driving.

[0008] A bag filled with contents and having an open top.
A plurality of holding means for holding the object to be sealed are provided along the circumference.
The rotary table is arranged and the rotary table is rotated.
Rotation driving means is provided, and the peripheral speed of the holding means is provided.
And the peripheral speed of the holding member provided on the support table
At the position where the degrees match, the support
Before the contents are filled into the holding member provided on the
To be constructed so that a bag-shaped sealed object is delivered
Is possible.

[0009]

In the above means, the sealing portion of the sealed body such as the bag first faces the sealing member, and at this time, the sealing member is in close contact with the sealing portion of the sealed body, and the plastic film of the sealing portion is sealed. It is heated or self-heated and sealed by welding. Immediately after the seal member separates from the sealing portion, the sealed body is relatively moved, and the sealed portion of the sealed body moves to a position facing the cooling member. At this time, the cooling member comes into close contact with the sealing portion, and the sealing completed portion is cooled.

As described above, the sealing and cooling of the sealing portion can be completed continuously and in a short time only by relatively moving the object to be sealed. Further, the sealing member, the cooling member and the holding member for holding the object to be sealed are continuously rotated by the rotation driving means .
The seal and cooling are continuously completed during this orbit.
To be sealed,
Cooling and cooling work in a short time and efficiently
You. Furthermore, the bag-shaped sealed body filled with the contents,
So that the peripheral speed is the same as that of the sealing member and the cooling member.
To seal the object to be sealed and the cooling member.
The entire device is transferred to the rotating part
Without the intermittent stop, the
Sealing and cooling of the tool body as a continuous process
It becomes possible.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a partial plan view of a sealing device according to the present invention, FIG.
3 is a cross-sectional view taken along the line II-II in FIG. 1, FIGS. 3A and 3B are explanatory views of the sealing and cooling operations, and FIG. 4 is a continuous liquid filling and sealing apparatus as an example of equipment using the sealing apparatus of the present invention. FIG. 5 is a schematic plan view for explaining the mechanism arrangement of the continuous filling and sealing apparatus. The continuous filling and sealing device shown in FIGS. 4 and 5 includes a bag body installation part A, a bag supply part B,
Bag delivery and printing section C, continuous filling section D of contents,
It comprises a continuous sealing / cooling section E and a discharge section F for finished products.

In the bag installation section A, a number of bags W are held in the supply tube 1 in an overlapping manner. The bag W is made of a plastic film having a heat seal layer as an inner layer.
In the bag supply section B, a plurality of suction rods 2 are provided on a table 4 which rotates counterclockwise as shown in FIG. The bags W are peeled off from the supply unit A one by one and supplied to the delivery and printing unit C. In the delivery and printing section C, the rotating body 5 intermittently rotates clockwise. A plurality of suction disks 6 are provided on the rotator 5, and the bags W are transferred one by one from the supply unit B of the bags by intermittent rotation. During the intermittent rotation stop section, printing of the manufacturing date is performed on the bag W. Then, at the junction with the continuous filling section D, the feeding speed of the bag W and the revolving speed of the continuous rotation of the continuous filling section D match, and the bags W are transferred to the continuous filling section D one by one.

The continuous filling section D is provided with a rotary table 7 which rotates continuously at a constant peripheral speed in a counterclockwise direction, and a plurality of sets of holding claws 8 are provided on the outer periphery of the rotary table 7. The bags W sent one by one from the delivery and printing unit C are sequentially held by the holding claws 8, and the bags W are rotated counterclockwise in FIG. Orbit continuously. Immediately after holding the bag W, the holding claws 8 are driven so that the opposing interval is narrowed, and the upper end mouth of each bag W is opened as shown in FIG.

A filling mechanism 9 that rotates in synchronization with the rotary table 7 is provided on the rotary table 7 of the continuous filling section D, and a plurality of supply cylinders 10 provided around the charging mechanism 9 are expanded. The bag W is put in the opened mouth of the bag W, and the bag W and the supply tube 10 rotate at the same speed, and the inside of the bag W is filled with a content such as a liquid. After a predetermined amount (or a predetermined weight) of the contents is supplied, the interval between the holding claws 8 is opened, and the mouth of the bag W is closed once. The bag W filled with the contents is transferred to the continuous sealing / cooling unit E. The continuous seal / cooling unit E is provided with a support table 12 that is continuously rotated clockwise at a constant peripheral speed. The support table 12 has 12 sets of seal / cool shown in FIGS. The mechanisms 20 are radially arranged at equal angular intervals.

As shown in FIGS. 2 and 4, below the support table 12, twelve sets of support bases 13 are provided. The support table 13 rotates together with the twelve seal / cooling mechanisms 20 in synchronization with each other. The support table 13 has a bottom plate 13a on which a bag W filled with contents is placed, and a pair of side support plates 13b, 13b supporting both sides of the bag W. Further, at the upper position of the support table 13, the middle portion of the bag W is gripped on both sides, and
There are provided 12 sets of holding claws 14 which rotate together with the cooling mechanism 20 and the support base 13 (only one set of holding claws 14 is shown in FIG. 4). The support table 13 and the holding claws 14 are supported by a lifting mechanism (not shown) so as to move up and down by a predetermined dimension according to the rotation position.

The holding claw 8 of the continuous filling section D, the support 13 and the holding claw 14 of the continuous sealing / cooling section E rotate at the same peripheral speed, and the contents are filled in the continuous filling section D. The bag W is transferred to the support base 13 and the holding claw 14 at the same speed at the position (a) shown in FIG.
The bag W in this delivered state is filled with contents such as liquid and the upper end is open or half open.

Next, the structure of the seal / cooling mechanism 20 will be described with reference to FIGS. As shown in FIG.
The support table 12 is rotatably supported on a fixed shaft 15 via a bearing, and the support table 12 is driven to rotate clockwise at a constant speed by the power of a motor. A fixed cam plate 16 located above the support table 12 is fixed to the upper end of the fixed shaft 15, and the fixed cam plate 16 is always stopped.
Are relatively rotated. This fixed cam plate 16 has a different radius from the fixed shaft 15 to the outer peripheral surface depending on its circumferential position. In FIG. 1, the outer peripheral surface having the smallest radius is indicated by 16a, and the outer peripheral surface having the largest radius is shown in FIG. 16b.

As shown in FIG. 2, the support table 12
On the upper side, a fixed shaft 21 is fixed for each of the twelve sets of seal / cooling mechanisms 20. A drive cylinder 23 is rotatably supported on the fixed shaft 21 via a pair of bearings 22, 22. I have. An arm 23a is integrally provided on the outer periphery of the driving cylinder 23, and a follower 24 using a rotating roller is provided on the arm 23a. The follower 24 faces the outer peripheral surface of the fixed cam plate 16.

A bearing member 25 is fixed to each of the seal / cooling mechanisms 20 on the support table 12 at an outer peripheral position than a position where the drive cylinder 23 is provided, and is held by the bearing member 25. The drive shaft 27 is rotatably supported by the pair of bearings 26, 26. This drive shaft 27
Extends in the vertical direction of the support table 12, and an arm member 28 is fixed to an upper end thereof. This arm member 28,
A connection rod 29 is connected between the drive cylinder 23 and an arm 23b provided integrally therewith. The arm member 2
A tension coil spring 32 is hung between a pin 28 a protruding from the upper surface of the support 8 and a stud 31 fixed on the support table 12. The arm member 28 is urged in a counterclockwise direction in FIG. 1 by a tension coil spring 32, and the driving cylinder 23 connected to the arm member 28 via a connecting rod 29 also moves counterclockwise in FIG. The follower 24 is pressed against the outer peripheral surface of the fixed cam plate 16 by the biasing force.

In each seal / cooling mechanism 20, pressure blocks 35 and 36 are provided below the support table 12 so as to face each other. As shown in FIG. 2, the upper end portion of the bag body W transferred from the continuous filling section D to the continuous sealing / cooling section E and held by the support base 13 and the holding claws 14 has two pressing blocks 35 and 36. Located between. One pressure block 35 has a sealing member 37 and the other pressure block 3
A seal member 38 is supported on 6. Heaters 37a, 38a, heat pipes 37b, 38b, and heat sensors 37c, 38 are attached to the seal members 37 and 38, respectively.
c is provided. Cooling members 41 and 42 are provided below the seal members 37 and 38. Cooling pipes 41 a and 42 a through which a cooling medium is sent are formed inside the cooling members 41 and 42.

The sealing member 37 on one side and the cooling member 41
Are fixed to the pressure block 35. The other side of the seal member 38 is supported so as to be able to advance and retreat with respect to the pressure block 36, and is urged by a compression spring 43 in a projecting direction. Similarly, the cooling member 42 is supported by the pressure block 36 so as to be able to advance and retreat, and is urged in the projecting direction by the compression spring 44. As shown in FIG.
In a state where the seal member 38 and the cooling member 42 are urged by the springs 43 and 44 to protrude, the distal end surface of the cooling member 42 protrudes from the distal end surface of the seal member 38 by a small dimension δ. The two pressure blocks 35 and 36 approach each other, and the sealing members 37 and 38 and the cooling members 41 and 4
When the two members 2 are pressed against each other, the cooling members 41 and 42 are pressed against the bag W slightly earlier due to the small dimension δ, and the sealing members 37 and 38 are pressed after a delay. When the cooling members 41 and 42 precede the bag W, the air in the bag W is discharged, and after the air is discharged, the sealing members 37 and 38 are pressed against the bag W to perform the heat sealing. become.

On the lower surface of the support table 12, a pair of bearing blocks 45 and 4 are provided for each seal / cooling mechanism 20.
6 is fixed. The bearing blocks 45 and 46 are arranged at predetermined intervals in the radial direction of the support table 12. A slide bearing 47 is held by the bearing block 45, and a slide bearing 48 is held by the bearing block 46. A slide shaft 49 is supported by the slide bearings 47 and 48 so as to be slidable in the left-right direction in FIG. I have. As shown in FIG. 1, each of the sliding shafts 49 is
Each of the support tables 12 is provided in parallel with each other and extends substantially in the radial direction of the support table 12.

As shown in FIG.
Is screwed into a male screw portion 49a at the tip of the sliding shaft 49,
It is fixed by nuts 51a and 51b. By changing the screwing amount of the male screw portion 49a into the pressing block 36, the position of the pressing block 36 in the left-right direction in the drawing is changed, and the sealing members 37 and 38 and the cooling members 41 and 4 are changed.
2 can be adjusted. A slide bearing 52 is fixed to the upper end of the pressure block 35 on the left side in the figure, and the pressure block 35 is supported by the slide bearing 52 so as to be slidable in the axial direction with respect to the slide shaft 49.

A drive arm 55 is fixed to the lower end of the drive shaft 27 extending in the front and back directions of the support table 12. A pin 57 fixed to a rotation link 58 is rotatably supported on a bearing sleeve 56 held at a predetermined position of the drive arm 55. The rotation link 58 is rotatably supported by a drive pin 61 via a bearing sleeve 59, and a bracket 62 fixed to the drive pin 61 is connected to an end 49 b of the slide shaft 49. I have. A bearing sleeve 63 is held at another position of the drive arm 55, and a pin 65 fixed to a rotation link 64 is rotatably supported by the bearing sleeve 63. A drive pin 67 is rotatably supported by a bearing sleeve 66 fixed to the rotation link 64, and a bracket 68 fixed to the drive pin 67 is connected to the pressure block 35.

When the support table 12 is rotated clockwise in FIG. 1 by the power of the motor, the follower 24 rolls on the outer peripheral surface of the fixed cam plate 16 which is always stopped. When the follower 24 moves to a portion where the radius of the outer peripheral surface of the follower 16 is large, the follower 24
Is driven clockwise, and the arm member 28 is driven clockwise through the connecting rod 29 against the elastic force of the spring 32. This turning power is transmitted to the drive arm 55 via the drive shaft 27. In FIG. 2, the rotating links 58 and 64 connected to the drive arm 55
Is shown in a plan view in the horizontal direction in the figure, but in an actual device, the pins 57 and 65 of the rotating links 58 and 64 are located in the circumferential direction of the support table 12, and the drive arm The clockwise rotation of 55 causes the sliding shaft 49
The pressing block 36 fixed thereto is driven to the left in the drawing of FIG. 2, and the pressing block 35 is driven to the right in the drawing, so that the sealing members 37 and 38 and the cooling member 4 are moved.
The upper part of the bag body W is clamped by 1 and 42.

As described above, the pinching operation is performed at a position where the radial dimension of the outer peripheral surface of the fixed cam plate 16 is large. As shown in FIG. 5, 12 sets of seal / cooling mechanisms 2
When the orbital positions at a predetermined time of 0 are indicated by (a) to (l), for example, the pressurizing blocks 35 and 36 are driven in the approaching direction at the orbital positions from (c) to (i). Then, the above-described pinching operation is performed. However, at the time of switching between the heat sealing step and the cooling step, the radius of the outer peripheral surface of the fixed cam plate 16 is partially narrow, for example, between the position (f) and the position (g) shown in FIG. As a result, the pressure blocks 35 and 36 are driven in a direction to open each other, and the clamping pressure is released for a short time. When each seal / cooling mechanism 20 moves to the orbital position (j), the discharge portion F is located there. As shown in FIG. 4, a discharge table or a discharge conveyor 71 is provided in the discharge section F,
The sealed bag body W after the sealing and cooling of the mouth is completed,
It is released from the support 13 and the holding claws 14 and discharged sequentially.

Next, the operation of the above device will be described. In FIGS. 4 and 5, the bags W, which are superimposed and held in the supply tube 1 of the bag installation portion A, are peeled off one by one by the suction plate 3 provided in the supply portion B of the bag. Further, it is passed to the suction and suction plate 6 of the delivery and printing section C. In the delivery and printing unit C, the bag W held by the suction disk 6 that rotates intermittently is printed with the date of manufacture and the like. Further, when the rotation speed of the suction disk 6 coincides with the peripheral speed of the holding claws 8 of the continuous filling unit D, the bags W are transferred one by one from the delivery and printing unit C to the holding claws 8 of the continuous filling unit D. It is. In the continuous filling section D,
In the path along which the bag W rotates at a constant peripheral speed, the mouth of the bag W is expanded by the holding claws 8, and the supply tube 10 provided in the filling mechanism 9 allows the contents such as liquid to be continuously discharged. The inside of the bag body W is filled.

Then, the bag W filled with the contents is delivered to the continuous sealing / cooling unit E by closing the mouth once by the holding claws 8 or the like. In the continuous filling section D and the continuous sealing / cooling section E, the peripheral speed of the bag body W is the same, and FIG.
(A), the bag W is delivered from the holding claw 8 of the continuous filling section D to the support base 13 and the holding claw 14 of the continuous sealing / cooling section E. In the continuous sealing / cooling unit E, the support table 12 is continuously rotated clockwise at a constant speed by the power of the motor. However, each of the twelve sets of sealing / cooling mechanisms 20 is moved from the position (j) in FIG. 1), the radius of the outer peripheral surface of the fixed cam plate 16 in the angle range is reduced as indicated by 16a in FIG. Accordingly, the driving cylinder 23 is rotated counterclockwise according to the follower 24 that rolls on the outer peripheral surface of the fixed cam plate 16, and the connecting rod 29, the arm member 28,
The drive arm 55 is rotated counterclockwise through the drive shaft 27, and the slide shaft 49 moves rightward in the figure and the pressure block 35 moves leftward in the figure as shown in FIG. And 38 and the cooling members 41 and 42 are open from each other.

In the position (a) shown in FIG. 5, the support table 13 and the holding claws 14 are raised by the elevating mechanism, and the bag W is transferred from the continuous filling portion D to the support table 13 and the holding claws 14. Is a slightly lifted state, and FIG.
As shown in (A), a sealing point W near the mouth of the bag W
a is opposed between the two seal members 37 and 38. The state in which the bag W is lifted in this way continues to the position (f) shown in FIG. By the rotation of the support table 12, each seal / cooling mechanism 20 is moved from the position (b) to (c).
While moving to the position, the fixed cam plate 1 at this position
6, the driving cylinder 23 is driven clockwise in FIG. 1 by the follower 24 rolling thereon, and the arm member 28 is driven clockwise through the connecting rod 29. This rotational force is transmitted from the drive shaft 27 to the drive arm 55, and the rotating links 58 and 64
5 driven. As a result, the sliding shaft 49 is driven leftward in FIG. 2 and the pressure block 35 is driven rightward in the drawing, and the mouth of the bag W is clamped.

As shown in FIG. 3A, the distal end surface of the cooling member 42 protrudes by δ from the distal end surface of the sealing member 38.
The portions of the bag W below the sealing point Wa are pinched by 1 and 42, and the air remaining above the contents inside the bag W is discharged. Immediately thereafter, the sealing portion Wa of the bag W is pressed by the sealing members 37 and 38. At this time, the respective sealing members 37 and 38 are at a predetermined heating temperature, and by this heating, the inner layer portion of the bag body W is thermally fused,
At the sealing point Wa, the mouth of the bag W is closed and heat sealed.

This heat sealing operation is performed by the sealing / cooling mechanism 2
0 is performed during the orbit from the position (c) to the position (f) in FIG. Then, when moving to the position (f), the radius of the outer peripheral surface of the fixed cam plate 16 becomes smaller at that position, and the drive cylinder 23 is deflected by the rolling of the follower 24 on the outer peripheral surface of the fixed cam plate 16. Rotate clockwise,
After the completion of the heat sealing, the sealing members 37 and 38 are both separated from the bag W, and the cooling members 41 and 42 are also separated from the bag W almost simultaneously. Immediately after the sealing members 37 and 38 and the cooling members 41 and 42 are separated from the bag W, the support base 13 and the holding claws 14 are lowered by the elevating mechanism, and the heat-sealed bag W held by these members is removed. When the sealing portion Wa of the bag body W descends, the cooling members 41 and 4 are moved from the positions facing the sealing members 37 and 38.
It goes down to the position facing 2.

Immediately thereafter, the rotation of the support table 12 moves the seal / cooling mechanism 20 to the position shown by (g) in FIG. At this position, the radius of the outer peripheral surface of the fixed cam plate 16 increases, and when the follower 24 rolls on this outer peripheral surface, the pressure blocks 35 and 36 are driven in a direction approaching each other, and FIG. As shown in ()), the sealing portion Wa immediately after the heat sealing is pressed by the cooling members 41 and 42. Cooling pipes 41a, 42a of cooling members 41, 42
A cooling medium such as cooling water is supplied into the inside, and the sealing portion Wa immediately after the heat sealing is cooled by the cooling members 41 and 42. At this time, as shown in FIG. 3B, the upper sealing members 37 and 38 also come into pressure contact with each other, but the upper end of the bag body W moves downward from the pressure contact position of the sealing members 37 and 38. The seal members 37 and 38 are in a so-called idling operation.

When the seal / cooling mechanism 20 rotates by the rotation of the support table 12, the cooling is performed. When the seal / cooling mechanism 20 reaches the position indicated by (j) in FIG. , The pressure blocks 35 and 36 open,
The cooling members 41 and 42 are separated from the bag W. At the same time, the holding of the bag W by the holding claws 14 is released, and the sealed and cooled bag W is discharged to the discharge portion F by a discharge mechanism (not shown). In the above embodiment, the bag body orbits at a constant speed in the continuous filling section D to fill the contents, and the bag body W is further orbited at a constant peripheral speed in the continuous sealing / cooling section E to form the bag W Since the sealing and cooling of the mouth of the bag W are continuously performed, there is no change in the speed of the bag W, so that even if the contents are liquid, the liquid splatters from the mouth of the bag W before sealing. There is nothing.

Further, in the continuous sealing / cooling section E, the sealing members 37, 38 and the cooling members 41, 42 are vertically arranged, and the bag W is rotated only at a constant speed by changing the height position of the bag W. From the sealing to the cooling can be continuously and smoothly performed, and the continuous sealing and cooling unit E can complete the process from the completion of the sealing to the completion of the cooling in a short time and with a short circumference. In addition, since the sealing members 37 and 38 and the cooling members 41 and 42 are pressed and separated by the same mechanism and used as a driving mechanism for the sealing member and a driving mechanism for the cooling member, the structure is very simple. In the above embodiment, the cooling members 41 and 42 are attached to the sealing member 3 by the protrusion dimension δ of the tip of the cooling member 42.
The air is evacuated from the bag W by pressing against the bag W ahead of the airbags 7 and 38, as shown by the chain line in FIG. A resilient member 75 made of rubber or the like may be provided to secure the pressure.

In the above embodiment, the common pressure block 3
Although the sealing members 37, 38 and the cooling members 41, 42 are pressed almost simultaneously by the operations of 5 and 36, as schematically shown in FIG. 4, the sealing members 37, 38 and the cooling members 41, 42 are provided. Are alternately pressed against each other, and when heat sealing is performed, only the sealing members 37 and 37 are pressed against the bag W,
When performing cooling, the position of the bag W may be lowered by the elevating mechanism, and only the lower cooling members 41 and 42 may be pressed against the bag W. Further, the sealing member 37, the holding member 14 and the holding claw 14 are not moved up and down without changing the height position of the bag body W.
By raising the cooling member 41 and the cooling members 41 and 42, the sealing point Wa of the bag body W may be relatively moved from a position facing the sealing members 37 and 38 to a position facing the cooling members 41 and 42.

[0036]

Further, the body to be sealed is not limited to a bag, and may be applied to, for example, a device for sealing and cooling together sheet-like films in a process of manufacturing a bag or the like. Further, in the embodiment shown in FIG.
8, heaters 37a, 38a and heat pipes 37b, 3
8b and the like are provided to exhibit a heat sealing function. For example, a sealing member having a self-heating function using ultrasonic waves or high frequency may be used.

[0038]

As described above, according to the present invention, the sealing member and the cooling member are provided side by side, and the sealing and cooling can be performed only by moving the body to be sealed relative to the sealing member. The process transition from cooling to cooling is smooth.
Further, the drive mechanism of the seal member and the cooling member can be easily configured.

Further , the seal member and the cooling member are continuously circulated.
While turning, seal and cool the object to be sealed.
Can be performed efficiently, making the sealing work efficient in a short time.
It can be carried out. In addition, a bag-like material
The seal member and the cooling member are provided while rotating the cooling member.
The contents are filled by passing
Intermittently stops the sealing operation for the object to be sealed
It can be carried out as a continuous process without performing.

[Brief description of the drawings]

FIG. 1 is a partial plan view showing a continuous sealing and cooling unit used in a continuous filling and sealing apparatus as one embodiment of the present invention;

2 is a sectional view taken along line II-II in FIG.

3A is an explanatory diagram of a sealing operation, FIG. 3B is an explanatory diagram of a cooling operation,

FIG. 4 is a perspective view showing the entire structure of the continuous filling and sealing device,

FIG. 5 is a schematic plan view showing the entire structure of the continuous filling and sealing device.

[Explanation of symbols]

 A bag installation section B bag supply section C delivery and printing section D continuous filling section E continuous sealing / cooling section F discharging section W bag 12 support table 13 support stand 14 holding claw 16 fixed cam plate 20 sealing / cooling mechanism 23 Drive cylinder 24 Follower 35, 36 Pressure block 37, 38 Seal member 41, 42 Cooling member 49 Sliding shaft 55 Drive arm 58, 64 Rotating link

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65B 51/32 B65B 51/10 B65B 7/02

Claims (2)

(57) [Claims] 1. A holding member for holding the sealing member Toko sealing member and alongside disposed cooling member and the seal body
A plurality of support tables provided along the circumferential direction,
Rotation driving means for continuously rotating the support table
And relative movement means for relatively moving a sealing portion of the sealed body from a position facing the sealing member to a position facing the cooling member while the support table is rotating; and When the is facing the sealing member, the sealing member is brought into close contact with the sealing portion to perform the sealing operation.
Allowed, and the seal portion after the seal is opposed to the cooling member
Perform cooling the cooling members in close contact with the seal portion to come
A sealing device, further comprising a driving means for driving the sealing device. 2. A bag-like container filled with contents and having an open top.
A plurality of holding means for holding the sealed body are arranged along the circumference.
Rotating table and the rotating table
Rotation driving means is provided, and a peripheral speed of the holding means,
When the peripheral speed of the holding member provided on the support table is
At the position where the
The bag-like shape in which contents are filled in the holding member
The sealing device according to claim 1, wherein the object to be sealed is passed.