JP2012197112A - Cooling mechanism for ultrasonic squeezing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ultrasonic squeezing device capable of preventing the thermal breakage phenomenon of an ultrasonic vibrator generated in carrying out a hot filling operation by providing two kinds of air cooling mechanisms for the ultrasonic vibrator of an ultrasonic driver.SOLUTION: The squeezing device for an automatic packaging machine includes an ultrasonic vibrating device mounted with an ultrasonic horn capable of pressing the whole breadth of a cylindrical packaging bag; a receiving plate (an anvil) arranged in a position to face the ultrasonic horn while holding the cylindrical packaging bag; and a driving device for operating the ultrasonic horn and the receiving plate to press each other. The ultrasonic vibrating device comprises the ultrasonic vibrator for oscillating ultrasonic waves; the ultrasonic horn for efficiently exciting the oscillated ultrasonic waves; and a cooling device for suppressing the heat generation of the ultrasonic vibrator. The cooling device includes a first air cooling mechanism for cooling the outside of the ultrasonic vibrator, and a second cooling mechanism for cooling the center part of the ultrasonic vibrator.

Description

  The present invention relates to measures against sealing failure caused by biting of contents that occur when sealing a filling port of a packaging bag made by an automatic packaging machine, and in particular, a squeezing device that removes the contents attached to the filling port of the packaging bag. It is about.

  The conventional automatic packaging machine is folded back into a substantially U-shaped section by a film folding device while pulling out the wrapping film wound up in a roll shape with a feeding roll or the like, and sent to a vertical heat seal roll and a horizontal heat seal roll for sealing Form. Then, a filling nozzle is inserted into the sealed cylindrical packaging bag, the contents (raw material) are filled, and then the filling port of the cylindrical packaging bag is sealed with a horizontal heat seal roll to form a continuous packaging body. Separate packaging is made by the device.

  Here, when the filling port of the cylindrical packaging bag filled with the content is sealed with a horizontal heat seal roll, the content is adhered inside the cylindrical packaging bag of the laterally sealed portion There is.

  In particular, when the filling amount of the contents to be put in the bag is set to be large, or when a dripping phenomenon occurs at the outlet of the filling nozzle due to the properties of the liquid contents such as viscosity, the cylindrical shape of the part to be sealed horizontally The contents reliably adhere to the inside of the packaging bag, and as a result, the contents are caught by the horizontal seal roll.

  In the case of the content of only a liquid having low viscosity in general, the content sandwiched by the pressing of the two front and rear rolls accompanying the lateral heat sealing operation is pushed out and can be correctly laterally sealed. On the other hand, in the case of liquid contents containing highly viscous liquid contents or solid contents, the contents cannot be removed only by pressing operation with the horizontal seal roll, and seal failure frequently occurs due to biting of the contents. Become.

  For this reason, the conventional automatic packaging machine uses a technology that eliminates the contents adhered to the horizontal seal portion using the ironing device as described in the following Patent Document 1 and Patent Document 2, and the liquid filling device. Priority has been given to the development of an intermittent filling device.

  However, when filling a liquid content with a high viscosity containing solids, it is difficult to prevent dripping with only a conventional intermittent filling device, and the content of solids is particularly high. When filling liquid contents containing solids such as “Habanero Sauce” or “Pepper Salt Sauce” at high speed, it is not possible to completely eliminate the situation where solids accidentally adhere to the horizontal seal. In this case, even if a conventional ironing device is used, a lateral seal failure due to the biting of solid matter occurs with a probability of almost 100%.

  In order to solve the above problems, an ironing device using an ultrasonic driver has been developed. In a roll type automatic packaging machine equipped with such an ultrasonic ironing device, the contents are cylindrical. When filling in a packaging bag, a hot filling method in which the contents themselves are warmed may be employed in order to increase the fluidity of the contents.

JP 2005-112359 A JP 2006-199323 A

  In the roll type automatic packaging machine adopting the above hot filling method, if the ultrasonic ironing device is moved while performing the hot filling operation, the heat is transferred from the heated contents to the ultrasonic driver of the ultrasonic ironing device. Due to heat, the ultrasonic vibrator of the ultrasonic driver becomes a temperature higher than the operation reference value and causes thermal destruction.

  (1) The present invention has been made to solve the above-mentioned problems. This cylindrical packaging is formed by using a filling nozzle while forming a cylindrical packaging bag by a vertical seal and a horizontal seal on a continuously transported packaging film. Fill the bag with the contents, remove the contents attached to the inside of the cylindrical packaging bag after filling with a squeezing device, and then open the side by sealing again the cylindrical packaging bag from which the attached contents have been removed. A roll type automatic packaging machine that forms an individual package by cutting the vicinity of the horizontal seal center of the continuous package with a cutter device, and sealing the part to form an individual package. An ultrasonic driver with an ultrasonic horn capable of pressing the entire width of the cylindrical packaging bag, a receiving plate (anvil) disposed at a position facing the ultrasonic horn while sandwiching the cylindrical packaging bag, and this Super A driving device that operates to press the wave horn and the receiving plate against each other, and the ultrasonic driver includes an ultrasonic vibrator that oscillates an ultrasonic wave, an ultrasonic horn that efficiently excites the oscillated ultrasonic wave, and The cooling device includes a cooling device that suppresses heat generation of the ultrasonic vibrator, and the cooling device includes a first air cooling mechanism that cools the outside of the ultrasonic vibrator and a second air cooling that cools the central portion of the ultrasonic vibrator. It has a mechanism.

  According to the ultrasonic squeezing apparatus described in (1) above, the ultrasonic waves generated during the hot filling operation are provided by providing two types of air cooling mechanisms for the ultrasonic vibrator of the ultrasonic driver. The thermal destruction phenomenon of the vibrator can be prevented.

  (2) The second air cooling mechanism of the present invention includes a cooling passage penetrating the central portion of the ultrasonic transducer, an air connector portion for sending cooling air from the start end of the cooling passage, and an ultrasonic wave at the end of the cooling passage. It consists of an air outlet that discharges air after cooling is completed from the horn mounting part.

  According to the second air cooling mechanism of the ultrasonic ironing device described in (2) above, the cooling efficiency is increased by forcibly cooling the central portion of the ultrasonic vibrator, and the hot filling operation is performed. It is possible to reliably prevent the thermal destruction phenomenon of the ultrasonic vibrator that occurs in

  As described above, according to the cooling mechanism of the ultrasonic ironing device according to the present invention, by providing two types of air cooling mechanisms for forcibly cooling the central portion and the outside of the ultrasonic transducer, the cooling efficiency is improved. As a result, it is possible to provide an ultrasonic squeezing device that can reliably prevent the thermal destruction phenomenon of the ultrasonic vibrator that occurs when performing the hot filling operation.

It is a front view which shows one structural example of the roll type automatic packaging machine which concerns on this invention. It is the schematic side view to which the ultrasonic ironing apparatus 20 using the rotary actuator which is performing the ironing operation as the 1st horizontal sealing apparatus 7 of the automatic packaging machine 1 which concerns on this invention was expanded. It is the schematic side view which expanded the ultrasonic ironing apparatus 20 using the rotary actuator which has stopped the ironing operation as the 1st horizontal sealing apparatus 7 of the automatic packaging machine 1 which concerns on this invention. It is the external schematic of the ultrasonic driver 37 which concerns on this invention. It is the internal schematic which removed the outer case of the ultrasonic driver 37 which concerns on this invention.

  First, the whole structure of the roll type automatic packaging machine which concerns on this invention is demonstrated using FIG. FIG. 1 is a front view showing a configuration example of a roll type automatic packaging machine according to the present invention. As shown in FIG. 1, a reel is provided on the front left side of a roll type automatic packaging machine 1 (hereinafter abbreviated as automatic packaging machine 1). On this reel, an original fabric roll FX around which a packaging film F is wound is held so as to be removable. The packaging film F drawn out from the original fabric roll FX by the feeding device 2 is folded downward by a film folding roll 3 provided at the upper part of the automatic packaging machine 1.

  The packaging film F folded back is folded in half in the longitudinal direction by the bag making device 4 and sent to the vertical sealing device 6. A filling nozzle 5 is provided to feed the contents into the cylindrical packaging film made by the vertical sealing device 6, and a pump device 12 is connected to the filling nozzle 5. A hopper 13 in which contents are put is connected to the pump device 12.

  Under this vertical sealing device 6, an ultrasonic ironing device 20, a first horizontal sealing device 7, a second horizontal sealing device 8, a cutting cutter device 9, and a slide for smoothly carrying out the separated individual packaged body. 10 is deployed. Furthermore, a control box 11 for operating and controlling the automatic packaging machine 1 is provided on the right side of the automatic packaging machine 1.

  The vertical seal device 6 shown in FIG. 1 is composed of two vertical seal rolls, and what is shown in FIG. 1 is a front side vertical seal roll (moving side seal roll). On the other hand, the vertical seal roll on the back side (the back side of the paper) is provided in a state facing the front side vertical seal roll in the direction perpendicular to the paper surface, and is fixed to the machine base of the automatic packaging machine 1 (fixed side seal roll). ).

  The horizontal sealing device is composed of a first horizontal sealing device 7 and a second horizontal sealing device 8, and these two horizontal sealing devices, like the vertical sealing device 6, are shown in FIG. These two horizontal seal rolls (moving side seal rolls) have two horizontal seal rolls in pairs on the back side (back side of the paper). These two lateral seal rolls on the back side are provided in a state facing each other in the direction perpendicular to the paper surface, and are fixed to the machine base of the automatic packaging machine 1 (fixed side seal roll).

  The packaging film F is made of a transparent or translucent material, for example, a base film such as PET, or a heat seal film such as polyethylene having a melting point lower than that of the base film. Moreover, the packaging film F may have a three-layer structure of a base film, an intermediate film, and a heat seal film.

  The packaging film F folded in half is heat-sealed at both ends in the longitudinal direction of the packaging film by the vertical sealing device 6 and sent to the first horizontal sealing device 7. By this vertical sealing, the packaging film is formed into a cylindrical shape.

  The cylindrical packaging film is sealed in the lateral direction (width direction) of the packaging film by the lateral sealing roll of the first lateral sealing device 7, and the bottom of the cylindrical packaging film is formed by this lateral sealing. A filling nozzle 5 is inserted into a packaging bag formed in a bottomed cylindrical shape, and the contents stored in the hopper 13 are filled into the packaging bag by a pump device 12 connected to the filling nozzle 5. Is done.

  Then, when the filling of the contents by the filling nozzle 5 is completed, the driving of the pump device 12 is stopped to finish the filling operation, and then the ultrasonic ironing device 20 is driven while the packaging film is fed out by one bag, and the contents are driven. The contents to be adhered to the inside of the bag are removed by sandwiching the portion to be sealed of the packaging bag filled with.

  Subsequently, the horizontal sealing roll of the first horizontal sealing device 7 laterally seals the portion to be sealed of the packaging bag whose contents have been removed by the ultrasonic squeezing device 20, thereby forming a bottomed cylindrical packaging bag. The filled contents are sealed to form a package. And this package is sent to the horizontal seal roll of the 2nd horizontal seal apparatus 8 immediately under. The second lateral seal roll laterally seals the lateral seal portion formed by the first lateral seal device 7 to form a linear seal or the like for further strengthening the strength of the lateral seal portion.

  Then, it cuts with respect to a horizontal seal center part with the cutting cutter apparatus 9, becomes an individual package body, and is carried out of the automatic packaging machine 1 from the slide stand 10. FIG.

  Next, FIG. 2 is an enlarged schematic side view of the ultrasonic ironing device 20 using the rotary actuator performing the ironing operation as the first horizontal sealing device 7 of the automatic packaging machine 1 according to the present invention. FIG. 3 is an enlarged schematic side view of the ultrasonic ironing device 20 using the rotary actuator that has stopped the ironing operation as the first horizontal sealing device 7 of the automatic packaging machine 1 according to the present invention. 2 and 3, the right side in the drawing is the front side of the automatic packaging machine 1, and the left side is the back side of the automatic packaging machine 1.

  As shown in FIGS. 2 and 3, the ultrasonic ironing device 20 includes an ultrasonic driver 37 that excites ultrasonic vibrations, an ultrasonic horn 36 that expands the vibrations by receiving the ultrasonic waves, and the ultrasonic horn. 36, the receiving plate 34 facing the tip portion 35, the cam follower device 22 that drives the ultrasonic horn 36 and the ultrasonic driver 37 to push or pull, and the ultrasonic ironing device 20 in conjunction with the cam follower device 22. The cam device 21 to be driven, the lever device 23 to be driven to push or pull the receiving plate 34, the connecting lever pushing member 29 for transmitting the driving force of the cam follower device 22 to the lever device 23, and the connecting lever pushing member 29 The connecting lever receiving member 30 that is in contact with the support shaft 26 of the cam follower device 22 is moved integrally with the cam follower device 22. The air cylinder receiving lever 24, the air cylinder 39 disposed so as to face the air cylinder receiving lever 24, the air cylinder receiving portion 28 disposed so as to face the cylinder shaft 38 of the air cylinder 39, and the cam follower device 22 The rear rotary actuator 27 is provided with a driving force that rotates the lever device 23 clockwise, and the front rotary actuator 32 is provided with a driving force that rotates the lever device 23 counterclockwise.

  As shown in the figure, the cam follower device 22 is configured to be rotatable about the support shaft 26, and the lever device 23 is configured to be rotatable about the support shaft 31. Although not shown in order to prevent complication in the drawing display, a cylindrically formed packaging film is disposed between the receiving plate 34 of the ultrasonic ironing device 20 and the tip portion 35 of the ultrasonic horn 36. Has been.

  Next, the movement of the ultrasonic ironing device 20 using a rotary actuator will be described. As shown in FIGS. 2 and 3, the cam device 21 is attached to the roll shaft of the back side lateral seal roll 72 and is driven to rotate in accordance with the rotational operation of the back side lateral seal roll 72. The cam follower device 22 is provided with a cam follower member 25 that comes into contact with the cam member of the cam device 21 and moves back and forth in accordance with the cam shape. The cam follower device 22 is rotatably supported near the center of the cam follower device 22. A support shaft 26 is attached, an ultrasonic driver 37 and an ultrasonic horn 36 are attached to one end of the cam follower device 22, and a connecting lever pushing member 29 is attached to the other end of the cam follower device 22.

  A receiving plate 34 is attached to one end of the lever device 23, and a support shaft 31 that rotatably supports the lever device 23 is attached near the center of the lever device 23. Is provided with a connecting lever receiving member 30. In addition, between the back side horizontal seal roll 72 and the front side horizontal seal roll 71, the packaging film shape | molded by the cylinder shape not shown is pinched | interposed. Then, as shown in FIG. 3, when the cam device 21 pushes the cam follower member 25 to the left side of the drawing in accordance with the convex portion, the cam follower device 22 rotates counterclockwise around the support shaft 26 and is attached. The ultrasonic driver 37 and the ultrasonic horn 36 are moved away from the receiving plate 34.

  At the same time, in accordance with the movement of the cam follower device 22, the driving force of the cam follower device 22 is pushed up to the connecting lever receiving member 30 of the lever device 23 that is in contact with the connecting lever pressing member 29, and is attached to the lever device 23. The plate 34 is moved away from the ultrasonic horn 36.

  As a result, the receiving plate 34 and the tip portion 35 of the ultrasonic horn 36 are arranged at an interval, and the wrapping film formed into a cylindrical shape is not squeezed by ultrasonic waves, that is, squeezed. Canceled.

  On the other hand, as shown in FIG. 2, the cam device 21 moves the cam follower member 25 so as to pull the cam follower member 25 to the right in the drawing in accordance with the concave portion of the cam device 21 due to the addition of the rotational force of the rear rotary actuator 27. Then, the cam follower device 22 rotates clockwise around the support shaft 26 and is moved in a direction approaching the receiving plate 34 with the attached ultrasonic driver 37 and ultrasonic horn 36.

  At the same time, the driving force of the cam follower device 22 is transmitted to the connecting lever receiving member 30 of the lever device 23 in contact with the connecting lever pushing member 29 in accordance with the movement of the cam follower device 22, and the rotational force of the front side rotary actuator 32 is also applied. The receiving plate 34 attached to the lever device 23 is moved in a direction approaching the ultrasonic horn 102.

  As a result, the receiving plate 34 and the front end portion 35 of the ultrasonic horn 36 come into press contact with each other, and the ultrasonic horn front end portion 35 and the receiving portion of the ultrasonic horn applied to the packaging film formed in a cylindrical shape. The sandwiching operation with the plate 34, that is, the squeezing operation using ultrasonic waves, reliably removes the contents attached to the cylindrical packaging film.

  The rotational force of the rear rotary actuator 27 and the front rotary actuator 32 is proportional to the supplied air pressure. By arbitrarily changing the air pressure, the rotational force of the rotary actuator is arbitrarily set. it can. That is, in the ultrasonic ironing device 20 using the rotary actuator, the pressing force between the tip portion 35 of the ultrasonic horn 36 and the receiving plate 34 can be easily adjusted, Depending on the properties such as the content of solids, it is optimally rugged. As an example of the squeezing condition, when the content has a high viscosity and the content of solids is large, it is necessary to more reliably squeeze. In this case, the tip portion 35 of the ultrasonic horn 36 and the receiving plate 34 In order to increase the pressure between them, the pressure of the air supplied to the rear side rotary actuator 27 and the front side rotary actuator 32 is increased. Further, the receiving plate 34 is provided with a minute distance adjusting device 33 that can move the receiving plate 34 back and forth by a minute distance. The tip portion 35 of the ultrasonic horn 36 is also provided by the minute distance adjusting device 33. And the pressing force between the receiving plate 34 can be adjusted.

  In short, the two pressing force adjusting means can be appropriately selected in consideration of ease of adjustment and the like, and an example of adjusting the pressing force between the tip portion 35 of the ultrasonic horn 36 and the receiving plate 34 is an example. The rough adjustment is performed by the air pressure supplied to the rotary actuator, and then the fine distance adjustment device 33 performs the fine adjustment.

  In a roll type automatic packaging machine equipped with an ironing device using such an ultrasonic drive, when filling high-viscosity contents, the contents themselves are removed during filling in order to increase the fluidity of the contents. The hot filling method is used.

  In this hot filling method, the contents are warmed to a maximum of nearly 90 degrees, and the highly viscous contents can be reliably put into the packaging bag, but the heat of the warmed contents is ultrasonically squeezed. The heat is transmitted to the ultrasonic driver of the apparatus, and the heat causes the temperature of the ultrasonic vibrator of the ultrasonic driver to rise rapidly, causing the ultrasonic vibrator to become a temperature higher than the operation reference value and causing thermal destruction. In order to cope with such a problem, the present invention employs a special cooling mechanism.

  FIG. 4 is an external schematic view of the ultrasonic driver 37 according to the present invention. FIG. 5 is an internal schematic view of the ultrasonic driver 37 according to the present invention with the outer case removed. As shown in FIG. 4, the ultrasonic driver 37 includes an outer case 100, a power supply connector 101 for supplying ultrasonic waves to an internal ultrasonic transducer, and cooling air for cooling the inside of the ultrasonic driver 37. A cooling hose 102 through which 200 passes, a hose bifurcated connector 113 that divides the cooling hose 102 into two, a cooling hose 104 constituting a first cooling mechanism, and a cooling hose 103 constituting a second cooling mechanism, The ultrasonic horn mounting portion 106 that collects vibration energy from the internal ultrasonic vibrator and efficiently transmits the energy to the ultrasonic horn, and the ultrasonic energy that is transmitted from the ultrasonic horn mounting portion 106 and is concentrated at the tip portion. It consists of a sonic horn 36.

  The hose bifurcated connector 113 divides the cooling air 200 into two parts, which become a first cooling air 400 and a second cooling air 300. Then, the supplied first cooling air 400 exits from the air discharge ports 111 and 112 provided in the outer case 100 as waste air 401 and 402. In addition, in order to represent the flow of cooling air, the air discharge ports 111 and 112 have been described with reference numerals attached to these two places. Each functions as an air outlet.

  On the other hand, the supplied second cooling air 300 exits from the air discharge ports 109 and 110 provided in the ultrasonic horn mounting portion 106 as waste air 301 and 302. Further, the ultrasonic horn 36 has a width dimension H, and adopts a value larger than the maximum bag width of the individual package manufactured by the automatic packaging machine 1.

  Next, FIG. 5 will be described. As shown in FIG. 5, the outer case 100 of the ultrasonic driver 37 is removed here, so that the inside of the ultrasonic driver 37 can be seen. An ultrasonic oscillation element 107 is mounted on the ultrasonic transducer 105 of the ultrasonic driver 37, and the connection line of the ultrasonic oscillation element 107 is connected to the power supply connector 101. Usually, the ultrasonic oscillation element 107 is formed by stacking piezoelectric vibrators having a resonance frequency of several hundred kHz. The ultrasonic vibration generated here is transmitted through the ultrasonic vibrator 105 and attached with an ultrasonic horn. Via the unit 106, the ultrasonic horn 36 is terminated.

  The ultrasonic horn 36 excites vibration energy transmitted via the ultrasonic horn mounting portion 106, and the vibration motion is further enhanced by a resonance action toward the tip portion. The ultrasonic horn 36 is a part that performs the actual ironing operation. In the hot filling method in which the content itself is heated during filling in order to improve the fluidity of the content, the heat of the heated content is ultrasonic. The temperature is transmitted to the horn 36, the ultrasonic horn mounting portion 106, the ultrasonic transducer 105, and finally the ultrasonic oscillation element 107, causing a rapid temperature rise.

  In order to prevent this temperature rise, the ultrasonic driver 37 of the present invention is provided with a cooling hose 104 that cools the outside of the ultrasonic transducer 105 with the cooling air 400 as a first cooling mechanism. Similarly, in order to prevent this temperature rise, a cooling hose 103 that cools the inside of the ultrasonic vibrator 105 with cooling air 300 is provided as a second cooling mechanism.

  The second cooling mechanism includes a cooling passage 114 penetrating through the central portion of the ultrasonic vibrator 105, an air connector portion 108 for sending the cooling air 300 from the start end of the cooling passage 114, and an ultrasonic wave at the end of the cooling passage 114. Air discharge ports 109 and 110 for discharging the waste air 301 and 302 after cooling is completed from the horn mounting portion 106.

  Normally, the ultrasonic driver 37 is provided with only a first cooling mechanism that cools the outside of the ultrasonic vibrator 105 with the cooling air 400 as a standard equipment. The ultrasonic driver 37 is a hot-filling roll. When used in an ultrasonic ironing device mounted on a type automatic packaging machine, the cooling capacity will be insufficient. In particular, heat is accumulated in the central portion of the ultrasonic transducer 105, and the second cooling mechanism is provided in the present invention in order to cool the accumulated heat. This second cooling mechanism absorbs the heat accumulated in the central portion of the ultrasonic vibrator 105 while the cooling air 300 is sent from the air connector portion 108 at the start of the cooling passage 114 and passes through the cooling passage 114. Finally, while cooling the ultrasonic horn mounting portion 106, the exhaust air is discharged as waste air 301, 302 from the air discharge ports 109, 110 to perform a heat exhausting operation.

  Note that a cover for directing the waste air 301 and 302 discharged from the air discharge ports 109 and 110 toward the ultrasonic horn 36 may be attached to the outer case 100. This means that the ultrasonic horn 36 itself is cooled by the waste air 301 and 302, and the cooling air 300 is further effectively used, so that the cooling efficiency can be improved by the second cooling mechanism. .

  As described above, the present invention described with reference to FIGS. 4 and 5 is provided with two types of air cooling mechanisms for forcibly cooling the central portion and the outer side of the ultrasonic transducer, so that the cooling efficiency is increased and hot filling is performed. It is possible to provide an ultrasonic ironing device that can surely prevent a thermal destruction phenomenon of an ultrasonic vibrator that occurs during operation.

  The embodiment of the present invention is an example for embodying the present invention, and has a corresponding relationship with the invention-specific matters in the claims, but is not limited thereto. Various modifications can be made without departing from the scope of the invention.

  That is, as the second cooling mechanism, the air discharge ports 109 and 110 drilled in the ultrasonic horn mounting part 106 have been described in two examples, but the present invention is not limited to this, and a plurality of discharge ports are drilled. May be. For example, the cooling passage provided in the ultrasonic horn mounting portion 106 may be formed in a cross shape and four discharge ports may be provided.

  Further, the waste air 301 and 302 discharged by obliquely perforating the cooling passage provided in the ultrasonic horn mounting portion 106 may be directed toward the ultrasonic horn 36.

DESCRIPTION OF SYMBOLS 1 Roll type automatic packaging machine 2 Feeding device 3 Film folding roll 4 Bag making device 5 Filling nozzle 6 Vertical seal device 7 First horizontal seal device 8 Second horizontal seal device 9 Cutting cutter device 10 Slide stand 11 Control box 12 Pump device 13 Hopper DESCRIPTION OF SYMBOLS 20 Ultrasonic ironing device 21 Cam apparatus 22 Cam follower apparatus 23 Lever apparatus 24 Air cylinder receiving lever 27 Rear side rotary actuator 32 Front side rotary actuator 34 Receptacle plate 36 Ultrasonic horn 37 Ultrasonic driver 71 Front side lateral seal roll 72 Rear side Horizontal seal roll 100 Outer case 101 Power supply connector 102, 103, 104 Cooling hose 105 Ultrasonic transducer 106 Ultrasonic horn mounting portion 107 Ultrasonic oscillation element 108 Air connector portion 10 9, 110, 111, 112 Air outlet 113 Hose bifurcated connector 114 Cooling passage

Claims (2)

While forming a cylindrical packaging bag with a vertical seal and a horizontal seal with respect to a continuously transported packaging film, the contents are filled into the cylindrical packaging bag using a filling nozzle, and the cylindrical shape after being filled with an ironing device The contents attached inside the packaging bag are removed, and the cylindrical packaging bag from which the attached contents have been removed is subjected to horizontal sealing again to seal the opening portion to form a sealed continuous package. A roll-type automatic packaging machine that separates the vicinity of the center of the horizontal seal of a continuous package with a cutter device to create an individual package,
The ironing device includes an ultrasonic vibration device to which an ultrasonic horn capable of pressing the entire width of the cylindrical packaging bag is attached, and a backing plate disposed at a position facing the ultrasonic horn while sandwiching the cylindrical packaging bag ( Anvil) and a drive device that operates to press the ultrasonic horn and backing plate against each other,
The ultrasonic vibration device includes an ultrasonic vibrator that oscillates an ultrasonic wave, an ultrasonic horn that efficiently excites the oscillated ultrasonic wave, and a cooling device that suppresses heat generation of the ultrasonic vibrator.
The cooling device includes a first air cooling mechanism that cools the outside of the ultrasonic vibrator, and a second air cooling mechanism that cools the central part of the ultrasonic vibrator. Sonic ironing device. The second air cooling mechanism is cooled from a cooling passage that penetrates the center of the ultrasonic transducer, an air connector that feeds cooling air from the beginning of the cooling passage, and an ultrasonic horn attachment at the end of the cooling passage. A cooling mechanism for an ultrasonic ironing device, comprising an air discharge port for discharging air after completion.