JP2004359253A - Apparatus for manufacturing packaging container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a liquid food from being contaminated with dust and to minimize the cost of a packaging container. <P>SOLUTION: The apparatus for manufacturing a packaging container is provided with a vibration transmitting section abutted on a container material before a liquid food is filled therein and a vibration generation source which generates vibration and transmits the vibration to the container material via the vibration transmitting section to wipe off dust 44 adhering to the container material. In this case, the vibration is transmitted to the container material via the vibration transmitting body to wipe off the dust 44 adhering to the container material, enabling the dust 44 adhering to the container material to be removed therefrom. Thereby, the liquid foods are prevented from being filled in the container material with the dust 44 adhering thereupon to prohibit inclusion of dust 44 into the liquid foods. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a packaging container manufacturing device.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in a packaging container manufacturing apparatus, for example, when manufacturing a gable-top (gable roof) type packaging container for storing liquid food, first, a folded carton blank is taken out of a magazine, and the carton blank is opened by an opener. A cylindrical carton having a square cross section is formed. In addition, the carton blanks are obtained by punching a packaging material having a fold formed in a predetermined pattern in advance into a predetermined shape by a punching device, folding the wrapping material along the fold by a folding device, and sealing a predetermined portion by a sealing device. It is formed by sealing, and housed in the magazine in a stacked state.
[0003]
The packaging material is coated on the outside of the paper container in the packaging container from the paper substrate, for example, an outermost layer made of polyethylene resin, and coated on the inside of the packaging container on the paper substrate, for example, made of polyethylene resin. The innermost layer, and if necessary, an aluminum foil (foil) layer having a gas barrier property for preventing gas, light and the like from being transmitted between the paper substrate and the innermost layer. Instead of the aluminum foil layer, for example, a gas barrier layer made of a non-olefin resin such as polypropylene can be formed.
[0004]
Subsequently, the cylindrical carton is set in a bottom forming device, and a predetermined process is performed by the bottom forming device, and the bottom is formed into a bottomed carton.
[0005]
To this end, the bottom forming apparatus includes a mandrel that is rotatably disposed. When the cylindrical carton is set on the mandrel, the mandrel is rotated, and when the mandrel is indexed to a predetermined station, the cylinder is turned off. A portion forming the bottom wall of the packaging container of the carton, that is, the bottom portion of the carton is bent along the fold, and a predetermined fused portion is fused to form the bottomed carton.
[0006]
Thereafter, the bottomed carton is taken out of the bottom forming apparatus, conveyed by a conveyor, and sent to a filling (balance) section, where the filling apparatus fills the bottomed carton with the liquid food. Subsequently, the bottomed carton is sent to the sealing section, where a portion constituting the inclined upper wall in the packaging container of the bottomed carton, that is, the carton top section is folded along the fold by the sealing device. A predetermined fused portion is fused, and the bottomed carton is sealed to form a packaging container (for example, see Patent Document 1).
[0007]
By the way, as described above, the carton blanks are formed by punching a packaging material by a punching device. However, if an abnormality occurs in the punching device, the paper base paper generated when the packaging material is punched out, etc. Dust such as powder, outermost layer and innermost layer resin powder may adhere to the carton blanks, in which case a bottomed carton is formed with the dust adhered. In addition, in the bottom forming apparatus, when an abnormality occurs when setting a cylindrical carton or performing a predetermined process on the cylindrical carton, the dust such as the paper powder and the resin powder is removed. In some cases, a bottomed carton is formed with the dust attached.
[0008]
As a result, the bottomed carton with the dust adhered is filled with the liquid food, and the dust is mixed into the liquid food.
[0009]
Therefore, the bottomed carton before being taken out of the bottom forming apparatus and sent to the filling section is visually observed to monitor the adhesion state of dust, and a sampling inspection is performed on the completed packaging container, and the dust inside the packaging container is inspected. If the dust adhesion or contamination is detected, the packaging container manufacturing equipment is stopped, and the punching device, bottom forming device, etc. function normally, or abnormalities occur. Lots of carton blanks and bottomed cartons are removed, and packaging containers are discarded.
[0010]
[Patent Document 1]
Japanese Patent Publication No. 49-18754
[Problems to be solved by the invention]
However, in the conventional packaging container manufacturing apparatus, since the monitoring of the dust adhesion state, the mixing state, etc. is performed by visual inspection, sampling inspection, etc., not only the work for monitoring is troublesome, but also the accuracy of the monitoring is reduced. Would. Therefore, the cost of the packaging container increases accordingly.
[0012]
The present invention provides a packaging container manufacturing apparatus which solves the problems of the conventional packaging container manufacturing apparatus, can prevent dust from being mixed into liquid food, and can reduce the cost of the packaging container. The purpose is to do.
[0013]
[Means for Solving the Problems]
Therefore, in the packaging container manufacturing apparatus of the present invention, a vibration transmitting unit that is brought into contact with the container material before the liquid food is filled, and generates vibration, and the vibration is applied to the container material via the vibration transmitting unit. And a vibration source for transmitting and removing dust adhering to the container material.
[0014]
In another packaging container manufacturing apparatus of the present invention, there is further provided a dust elimination device for injecting a dust removing medium toward the container material to eliminate dust removed by the vibration source.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0016]
FIG. 2 is a perspective view showing a main part of the packaging container manufacturing apparatus according to the first embodiment of the present invention.
[0017]
In the figure, reference numeral 11 denotes a bottom forming device, which has a boss 12 as a shaft portion rotatably disposed by a shaft (not shown), and a diameter at an equal angular interval on an outer peripheral edge of the boss 12. In the present embodiment, a plurality of mandrels 13 are provided facing outward in the direction. The boss 12 is intermittently rotated in the direction of arrow A by driving a motor as a drive unit (not shown) connected to the shaft, and each mandrel 13 is rotated with the rotation of the boss 12. Are determined for each of the predetermined stations S1 to S6 set in advance. In the present embodiment, the index angle is set to 60 [°].
[0018]
Then, in the station S1, a supply section is formed, and in a state where the boss 12 is stopped, a cylindrical carton 15 having a rectangular cross section is supplied, and is set on the bottom forming device 11 in the direction of the arrow B. , The mandrel 13 is inserted into the cylindrical carton 15.
[0019]
By the way, in order to form the cylindrical carton 15, a packaging material (not shown) in which the fold 16 is formed in a predetermined pattern in advance is punched into a predetermined shape by a punching device (not shown), and a folding device (not shown). Folded along the fold 16 and a predetermined portion, in this embodiment, both edges in the longitudinal direction are sealed by a sealing device (not shown) to form carton blanks, and the carton blanks are stacked in a stacked state. It is stored in a magazine (not shown). Subsequently, along with the operation of the packaging container manufacturing apparatus, the first dust removing unit provided in the magazine is operated, a first dust removing step is performed, and the first dust removing unit is attached to the carton blanks. To eliminate dust.
[0020]
Then, the carton blanks are taken out of the magazine and opened by an opener (not shown) to form the tubular carton 15. The first container material is constituted by the carton blanks, and the second container material is constituted by the tubular carton 15.
[0021]
Further, the packaging material is coated on the outside of the paper container in the packaging container from the paper substrate, for example, the outermost layer made of polyethylene resin, is coated on the inside of the packaging container from the paper substrate, for example, polyethylene resin And an aluminum foil layer having a gas barrier property for preventing gas, light and the like from being transmitted between the paper base material and the innermost layer, if necessary. Instead of the aluminum foil layer, for example, a gas barrier layer made of a non-olefin resin such as polypropylene can be formed. The fold 16 forms a carton bottom portion 17, a carton top portion 18, and the like.
[0022]
As described above, when the cylindrical carton 15 is set on the bottom forming device 11, the boss 12 is rotated by 60 ° in the direction of arrow A, and the cylindrical carton 15 is sent to the station S2 together with the mandrel 13. Is stopped at the station S2.
[0023]
In the station S2, a pre-bending section is formed, and a pre-bending step is performed. For this purpose, at the station S2, the carton bottom portion 17 is concentrically opposed to the prefolder (not shown), and when the actuator (not shown) advances the prefolder, the prefolder moves along the carton along the fold 16. The bottom part 17 is preliminarily bent. In this case, before the carton bottom part 17 is completely bent, the actuator is stopped, the pre-folder is retracted, and the carton bottom part 17 is moved before the pre-folding process is started due to the elasticity of the packaging material. Return to the position.
[0024]
Subsequently, the boss 12 is rotated by 60 ° in the direction of arrow A, and the cylindrical carton 15 is sent to the station S3 together with the mandrel 13 and stopped at the station S3.
[0025]
In the station S3, a heating unit is configured, and a heating process is performed. To this end, at the station S3, the carton bottom portion 17 is concentrically opposed to a heating device (not shown), and when an actuator (not shown) advances the heating device, the heating device blows hot air onto the carton bottom portion 17 and the carton bottom portion 17 The surface of the predetermined fused portion at 17 is melted.
[0026]
Subsequently, the boss 12 is rotated by 60 ° in the direction of arrow A, and the cylindrical carton 15 is sent to the station S4 together with the mandrel 13, and stopped at the station S4. During this time, the carton bottom portion 17 is brought into contact with a guide unit (not shown), and the guide unit guides the carton bottom portion 17 and bends along the fold 16.
[0027]
In the station S4, a pressurizing unit is configured, and a pressurizing step is performed. To this end, in the station S4, the folded carton bottom portion 17 is concentrically opposed to a pressing device (not shown), and when an actuator (not shown) advances the pressing device, the pressing device The folded carton bottom portion 17 is pressed against the mandrel 13, and the fused portion is fused to form the bottom 19. In this way, a bottomed carton 21 as a third container material having the carton top portion 18 and the bottom 19 is formed.
[0028]
Subsequently, the boss 12 is rotated 60 [°] in the direction of arrow A, and the bottomed carton 21 is sent together with the mandrel 13 to the station S5, where it is stopped. During this time, the bottom 19 is cooled naturally or forcibly.
[0029]
In the station S5, a non-machining portion is formed, and machining is not performed on the bottomed carton 21, and the bottomed carton 21 is put on standby.
[0030]
Subsequently, the boss 12 is rotated by 60 ° in the direction of arrow A, and the bottomed carton 21 is sent to the station S6 together with the mandrel 13 and stopped at the station S6.
[0031]
In the station S6, an unloading unit is formed, and the bottomed carton 21 is unloaded with the carton top 18 facing upward. To this end, at the station S6, the bottom 19 is concentrically opposed to a drawing device (not shown), and when an actuator (not shown) advances the drawing device, the drawing device moves the bottomed carton 21 in the direction of arrow C to the mandrel 13. Pull out from.
[0032]
As the boss 12 is rotated, each mandrel 13 is sent to each of the stations S1 to S6. At the station S1, the tubular carton 15 is sequentially set on the bottom forming device 11, and Through the stations S2 to S4, the bottomed carton 21 is formed, and the bottomed carton 21 is sequentially taken out at the station S6. Further, a plurality of the bottom forming apparatuses 11 are provided as necessary, and the bottomed cartons 21 are simultaneously formed and taken out in each bottom forming apparatus 11.
[0033]
In this way, when the bottomed carton 21 is formed in the bottom forming device 11, the drawing device lowers the bottomed carton 21 between the holding devices (not shown) disposed on both edges of the conveyor 23, The holding device holds the bottomed carton 21 on a conveyor 23. The conveyor 23 is connected to a transport motor (not shown) as a transport drive unit, and by driving the transport motor, synchronizes the conveyor 23 with the bottom forming apparatus 11 so that the conveyor 23 is moved horizontally and with an arrow. The vehicle can be intermittently driven in the direction D by a predetermined distance. Meanwhile, the bottomed carton 21 is filled with liquid food, the carton top 18 is sealed, and a packaging container is formed.
[0034]
For this purpose, stations P1 to P7 and the like are set in advance along the conveyor 23, and the bottomed carton 21 is sent to each of the stations P1 to P7 as it is intermittently conveyed by the conveyor 23, Predetermined processing is performed on the bottomed carton 21 at each of the stations P1 to P7. In addition, the holding device holds the bottomed carton 21 until the bottomed carton 21 is conveyed by the conveyor 23 and the packaging container is discharged.
[0035]
First, the conveyor 23 is run, and the bottomed carton 21 is sent to the station P1 and stopped at the station P1.
[0036]
In the station P1, a pre-bending section is formed, and a pre-bending step is performed. To this end, at the station P1, the carton top portion 18 is concentrically opposed to a pre-folder (not shown), and when an actuator (not shown) advances and lowers the pre-folder, the pre-folder is folded. Preliminarily bend the carton top 18 along 16. In this case, before the carton top 18 is completely bent, the actuator is stopped and the prefolder is retracted and raised. Then, the carton top portion 18 returns to the position before the start of the pre-bending step due to the elasticity of the packaging material.
[0037]
Subsequently, the conveyor 23 is run, and the bottomed carton 21 is sent to the station P2 and stopped at the station P2.
[0038]
In the station P2, a second dust removing unit is configured, and a second dust removing step is performed. For this purpose, a dust removing device 25 is provided at the station P2 to remove dust adhering to the bottomed carton 21.
[0039]
Subsequently, the conveyor 23 is run, and the bottomed carton 21 is sent to the station P3 and stopped at the station P3.
[0040]
In the station P3, a first sterilizing section is configured, and a first sterilizing step is performed. To this end, at the station P3, the carton top portion 18 is concentrically opposed to the hydrogen peroxide spraying device 26 as a disinfectant supply device, and an actuator (not shown) moves the hydrogen peroxide spraying device 26 forward and downward. The hydrogen peroxide spraying device 26 sprays hydrogen peroxide as a disinfectant into the bottomed carton 21 to sterilize the bottomed carton 21, particularly the inner peripheral surface of the bottomed carton 21. .
[0041]
Subsequently, the conveyor 23 is run, and the bottomed carton 21 is sent to the station P4 and stopped at the station P4.
[0042]
In the station P4, a second sterilization unit is configured, and a second sterilization process is performed. For this purpose, at the station P4, the carton top portion 18 is concentrically opposed to the hydrogen peroxide water removing device 27, and the UV irradiation device (not shown) of the hydrogen peroxide water removing device 27 irradiates the bottomed carton 21 with ultraviolet rays. Then, the bottomed carton 21, in particular, the inner peripheral surface of the bottomed carton 21 is sterilized. Further, hot air is generated by a hot air generating device (not shown) of the hydrogen peroxide water removing device 27, and the hot air is sent to the bottomed carton 21, particularly, the peroxide remaining on the inner peripheral surface of the bottomed carton 21. Remove the hydrogen water.
[0043]
Subsequently, the conveyor 23 is run, and the bottomed carton 21 is sent to the station P5 and stopped at the station P5.
[0044]
In the station P5, a filling section is formed, and a filling step is performed. To this end, a filling device 28 is provided at the station P5, and the filling device 28 is provided with a tank 29 for storing the liquid food, and a measuring pump as a measuring unit for sucking and discharging the liquid food from the tank 29. 31, a measuring supply pipe 32 as a measuring supply section for supplying the liquid food discharged from the measuring pump 31 into the bottomed carton 21. When the carton top 18 is concentrically opposed to the metering tube 32 and an actuator (not shown) advances and lowers the metering tube 32, the metering tube 32 is moved into the bottomed carton 21 by a predetermined amount. Fill the amount of liquid food.
[0045]
Subsequently, the conveyor 23 is run, and the bottomed carton 21 is sent to the station P6 and stopped at the station P6.
[0046]
In the station P6, a heating unit is configured, and a heating process is performed. To this end, at the station P6, the carton top portion 18 is concentrically opposed to the heating device 35, and when an actuator (not shown) advances and lowers the heating device 35, the heating device 35 applies hot air to the carton top portion 18. The surface of a predetermined fused portion in the carton top portion 18 is melted by spraying.
[0047]
Subsequently, the conveyor 23 is run, and the bottomed carton 21 is sent to the station P7 and stopped at the station P7. During this time, the carton top 18 is brought into contact with a guide unit (not shown), and the guide unit guides the carton top 18 and bends along the fold 16.
[0048]
In the station S7, a pressurizing unit is configured, and a pressurizing step is performed.
For this purpose, in the station S7, the carton top portion 18 in the bent state is concentrically opposed to the pressurizing device 37, and when the actuator (not shown) advances and lowers the pressurizing device 37, The device 37 sandwiches the carton top portion 18 in the bent state, and fuses the fused portion to form a top. Thus, a packaging container having the top and bottom 19 is formed.
[0049]
Thereafter, the conveyor 23 is run, and the packaging containers are sent to each station (not shown), where printing, embossing, labeling, and the like are performed by a stamp, an embossing machine, a label pasting device, and the like. The packaging container is completed.
[0050]
When the packaging container is manufactured in this way, at the end of the conveyor 23, the holding device opens the packaging container, and the packaging container is discharged from the packaging container manufacturing device by a discharger (not shown).
[0051]
By the way, as described above, carton blanks are formed by punching a packaging material with a punching device. Dust such as powder, resin powder of the outermost layer and innermost layer may adhere to the carton blanks. In this case, the bottomed carton 21 is formed with the dust attached. Further, in the bottom forming apparatus 11, when the tubular carton 15 is set or when a predetermined processing is performed on the tubular carton 15, an abnormality occurs. In some cases, the bottomed carton 21 is formed with the dust attached.
[0052]
Then, when the bottomed carton 21 with the dust attached thereto is filled with the liquid food, the dust is mixed into the liquid food.
[0053]
Therefore, as described above, the first and second dust removals are performed in order to eliminate dust adhering to the carton blanks and the bottomed carton 21 and to monitor the state of dust adhering to the bottomed carton 21. Section is provided.
[0054]
FIG. 1 is a conceptual diagram showing a process in a first dust removing unit according to the first embodiment of the present invention.
[0055]
In the figure, 51 is a control unit, 60 is a first dust removing device, and the first dust removing device 60 is a vibration generator 61 as a first vibration generating source connected to a predetermined portion of a magazine (not shown). And a blower 62 as a first dust elimination device. The vibration generator 61 and the blower 62 are connected to a control unit 51.
[0056]
Cb is a carton blank, and 10 is a parcel composed of a group of carton blanks Cb. The carton blanks Cb are placed on a magazine in a state of parcels 10.
[0057]
The dust removal processing means (not shown) of the control unit 51 performs dust removal processing and generates vibration at a predetermined frequency and amplitude in the direction of arrow M by the vibration generator 61. The dust 44 is transmitted to a magazine via a vibrator (not shown), and further transmitted to the carton blanks Cb via the magazine to remove dust 44 attached to the carton blanks Cb. The dust 44 falls by gravity and is removed.
[0058]
By the way, a part of the dust 44 that has been removed may adhere to the carton blanks Cb again for some reason. Therefore, a dust elimination processing unit (not shown) of the control unit 51 performs a dust elimination process, activates the blower 62, and injects air as a dust removal medium in the direction of arrow N toward the carton blanks Cb. Accordingly, the dust 44 attached to the carton blanks Cb can be removed by the dynamic pressure of air. Further, the dust 44 blown off by the vibration generator 61 can be eliminated, and the dust 44 can be prevented from adhering to the carton blanks Cb again.
[0059]
In this case, the direction in which the vibration is generated by the vibration generator 61 (the direction of the arrow M) is the same as the direction in which the air generated by the blower 62 flows (the direction of the arrow N). Can be eliminated.
[0060]
In this way, the dust 44 adhering to the carton blanks Cb can be removed, and then the carton blanks Cb are removed from the magazine and opened by the opener (not shown) to remove the cylindrical carton blanks, as described above. 15 are formed.
[0061]
In the present embodiment, a vibration generator 61 as a first vibration generation source is provided, and the vibration generator 61 generates vibration at a predetermined frequency and amplitude. It is also possible to dispose an ultrasonic generator as a vibration source in place of the vibration generator 61, generate ultrasonic waves at a predetermined frequency and amplitude by the ultrasonic generator, and wipe off the dust 44 by the ultrasonic waves. .
[0062]
In the present embodiment, a blower 62 is provided as a first dust elimination device, and air as a dust removal medium generated by operating the blower 62 is jetted toward the carton blanks Cb, Although the dust 44 is eliminated, compressed air can be used instead of air as a dust removing medium. In that case, a compressor, a pump, or the like can be used instead of the blower 62 as the first dust elimination device. It should be noted that air, compressed air, etc., which have been subjected to a sterilization treatment are used.
[0063]
Further, a vacuum generator may be provided as the first dust removing device instead of the blower 62, and the dust 44 may be suctioned and removed by the negative pressure generated by the vacuum generator. Then, a blower 62 and a vacuum generator are provided, and air can be injected toward the carton blanks Cb, and the dust 44 can be sucked and removed by negative pressure. Further, the air injected by the blower 62 is ionized by a predetermined ionizer to remove static electricity formed on the surface of the carton blanks Cb, thereby facilitating the dust 44 to be wiped off.
[0064]
Next, the second dust removing unit will be described.
[0065]
FIG. 3 is a conceptual diagram of a second dust removing unit according to the first embodiment of the present invention, and FIG. 4 is an enlarged view showing a main part of the second dust removing unit according to the first embodiment of the present invention. is there.
[0066]
In the figure, 21 is a bottomed carton, 23 is a conveyor for transporting the bottomed carton 21, and 25 is a second dust removing device. The second dust removing device 25 includes a vibration generator 65 as a second vibration generating source, a blower 41 as a second dust removing device for supplying air as a second dust removing medium, a transport pipe 42, The nozzle 43, a collection duct 45 as a collection unit, a filter 46 as a separation device, an air supply pipe 47, an actuator 49 connected to the conveyance pipe 42, a vibrator 68 as a vibration transmission unit, and a connection to the vibrator 68. Actuator 66 and the like. The vibration generator 65, the blower 41 and the actuators 49 and 66 are connected to the control unit 51.
[0067]
Then, when the bottomed carton 21 is sent from the station P1 (FIG. 2) to the station P2, the dust removal processing means drives the actuator 66 to move the vibrator 68 forward and hit the bottomed carton 21. Contact Subsequently, when the dust removal processing means causes the actuator 66 to generate vibration at a predetermined frequency and amplitude in the direction of arrow P, the vibration is transmitted to the bottomed carton 21 via the vibrator 68, The dust 44 attached to the bottomed carton 21 is removed.
[0068]
At the same time, the lifting / lowering processing means (not shown) of the control unit 51 performs a lifting / lowering process, drives the actuator 49 to move the nozzle 43 forward, lowers the nozzle 43 to the operating position, and places the dust 44 on the bottomed carton 21. Is eliminated, before the next bottomed carton 21 is sent from the station P1 to the station P2, the actuator 49 is driven to move the nozzle 43 backward, and is raised to place the bottomed carton 21 in the retracted position. .
[0069]
Further, the dust elimination processing means performs dust elimination processing, and when the nozzle 43 is placed at the operating position, activates the blower 41 to discharge air in the direction of arrow E to form an air flow. The air discharged from the blower 41 is conveyed in a conveying pipe 42 and supplied to a nozzle 43 attached to a tip of the conveying pipe 42, and is supplied from the nozzle 43 to the bottomed carton 21, in particular, to the bottomed carton 21. It is injected in the direction of arrow F toward the inner peripheral surface. Accordingly, dust 44 adhering to the bottomed carton 21, particularly to the inner peripheral surface of the bottomed carton 21, can be removed by the dynamic pressure of the injected air. Further, the dust 44 that has been removed by the vibration generator 65 can be eliminated, and the dust 44 can be prevented from adhering to the bottomed carton 21 again.
[0070]
The air and the mixed gas composed of the dust 44 removed and floating in the air, that is, the dust-containing air, is collected by the collection duct 45 and transported in the direction of arrow G.
[0071]
Subsequently, the dust-containing air is sent to the filter 46, and is filtered by the filter 46. The dust 44 is separated from the air. The filtered clean air flows in the air supply pipe 47 in the arrow H direction. The flow is sucked by the blower 41.
[0072]
In the present embodiment, a vibration generator 66 is provided as a second vibration generation source, and the vibration generator 66 generates vibration at a predetermined frequency and amplitude. An ultrasonic generator may be provided in place of the vibration generator 66 as a vibration generation source, and the ultrasonic generator may generate an ultrasonic wave at a predetermined frequency and amplitude, and the ultrasonic wave may be used to wipe off the dust 44. it can.
[0073]
Further, in the present embodiment, a blower 41 is provided as a second dust elimination device, and air as a dust removal medium generated by operating the blower 41 is directed to the bottomed carton 21. The dust 44 is ejected to remove the dust 44, but compressed air can be used instead of air as the dust removing medium. In that case, a compressor, a pump, or the like can be used instead of the blower 41 as the second dust removing device. It should be noted that air, compressed air, etc., which have been subjected to a sterilization treatment are used.
[0074]
Further, a vacuum generator may be provided as a second dust elimination device in place of the blower 41, and the dust 44 may be sucked and eliminated by the negative pressure generated by the vacuum generator. Alternatively, a blower 41 and a vacuum generator may be provided, air may be injected toward the bottomed carton 21, and the dust 44 may be sucked and removed by negative pressure. Further, the air discharged by the blower 41 is ionized by a predetermined ionizer, thereby removing static electricity formed on the surface of the bottomed carton 21 and facilitating the dust 44 to be wiped off.
[0075]
By the way, in order to monitor the adhesion state of dust to the bottomed carton 21, a dust sensor 55 as a dust detection unit is provided in the collection duct 45, and is contained in dust-containing air by the dust sensor 55. The amount of dust 44 is detected. A sensor output indicating the detection result of the dust sensor 55 is sent to the control unit 51, and a monitoring processing unit (not shown) of the control unit 51 performs a monitoring process, and based on the sensor output, generates dust to the bottomed carton 21. The adhered state of 44 is monitored.
[0076]
The not-shown notification processing means of the control unit 51 performs a notification process, displays a monitoring result on a display 56 as a display unit, and notifies the operator. The notification processing means sends a notification signal indicating a monitoring result to a main controller (not shown) to notify the operator of the monitoring result.
[0077]
Therefore, based on the monitoring result displayed on the display 56 or the monitoring result sent to the main control device, the operator stops the packaging container manufacturing device, if necessary, and performs the punching device, the bottom forming device 11 And repair them so that they function properly. In addition, the notification processing unit may send a monitoring result to an alarm device (not shown) as necessary, and generate an alarm by the alarm device.
[0078]
In order to prevent the dust 44 from adhering to the inner and outer surfaces of the nozzle 43 due to static electricity, a static eliminator 52 is provided at a predetermined position of the nozzle 43, and the control unit 51 constantly or continuously monitors the monitoring result. , The static electricity removing device 52 is operated to remove the static electricity generated in the nozzle 43.
[0079]
As described above, in the first dust removing section, the dust 44 attached to the carton blanks Cb is wiped off, and in the second dust removing section, the dust 44 attached to the bottomed carton 21 is washed off. Cb and dust 44 adhering to the bottomed carton 21 can be eliminated.
[0080]
Therefore, the bottomed carton 21 with the dust 44 attached is not filled with the liquid food, and the dust 44 can be prevented from being mixed into the liquid food. As a result, it is not necessary to remove the carton blanks Cb, the bottomed carton 21 and the like of the lot in which the abnormality has occurred due to the mixing of the dust 44, and to discard the packaging container. it can.
[0081]
In the first and second dust removing devices 60 and 25, the vibrations generated by the vibration generators 61 and 65 are transmitted to the entire carton blanks Cb and the bottomed carton 21. In the bottomed carton 21, even dust 44 adhering to a portion of the bottomed carton 21 that does not hit the air injected from the blower 62 and the nozzle 43 can be reliably removed. Therefore, the dust 44 attached to the carton blanks Cb and the bottomed carton 21 can be reliably removed.
[0082]
Then, the blown-out dust 44 can be removed by the blowers 62 and 41 in the first and second dust removing units, so that the blown-out dust 44 adheres to the carton blanks Cb and the bottomed carton 21 again. Will not be done. Therefore, dust 44 can be more reliably eliminated.
[0083]
In the above embodiment, in the drawing, for convenience of explanation, only dust 44 attached to one bottomed carton 21 is eliminated at station P2, and only one bottomed carton 21 is sterilized at station P3. However, actually, two bottom forming devices 11 are provided, and second dust removing devices 25 are provided at two places in the traveling direction of the conveyor 23, and are attached to the two bottomed cartons 21. The dust 44 is eliminated, the hydrogen peroxide spraying device 26 and the hydrogen peroxide water removing device 27 are disposed at two places in the traveling direction of the conveyor 23, and the two bottomed cartons 21 are sterilized.
[0084]
In the above-described embodiment, the blowers 62 and 41 are provided in the first and second dust removing units, so that the dust 44 blown off by the vibration generators 61 and 65 can be removed. However, it is also possible to dispose only the vibration generators 61 and 65 in the first and second dust removing units and remove the dust 44 by removing the dust.
[0085]
In this case, it is possible to prevent the airflow from being diffused with the injection of air in the chamber of the packaging container manufacturing apparatus. As a result, it is possible to prevent the dust 44 from being scattered.
[0086]
Next, a second embodiment of the present invention will be described.
[0087]
FIG. 5 is an enlarged view showing a main part of a second dust removing unit according to the second embodiment of the present invention.
[0088]
In the drawing, reference numeral 44 denotes dust, and 71 denotes a vibrator as a vibration transmitting unit. The vibrator 71 is connected to an actuator (not shown), and is connected to a vibration generator 65 (FIG. 3). Then, while holding the bottomed carton 21 as the second container material, the vibration generated by the vibration generator 65 is transmitted to the bottomed carton 21.
[0089]
In this case, since the vibrator 71 holds the bottomed carton 21 from below, it is preferable to dispose the vibrator 71 at a portion where the conveyor 23 (FIG. 2) is not provided, for example, immediately below the station S6. In that case, the bottomed carton 21 sequentially taken out at the station S6 can be held by the vibrator 71, and the second dust removing step is performed before the pre-bending step.
[0090]
It should be noted that the present invention is not limited to the above-described embodiment, but can be variously modified based on the gist of the present invention, and they are not excluded from the scope of the present invention.
[0091]
【The invention's effect】
As described in detail above, according to the present invention, in the packaging container manufacturing apparatus, the vibration transmitting unit that is brought into contact with the container material before the liquid food is filled, and generates the vibration, the vibration transmitting unit And a vibration source for transmitting vibrations to the container material through the container and removing dust adhering to the container material.
[0092]
In this case, the vibration is transmitted to the container material via the vibration transmitting unit, and the dust attached to the container material is wiped off, so that the dust attached to the container material can be eliminated.
[0093]
Therefore, it is possible to prevent the liquid food from being filled in the container material with the dust adhered, and to prevent the dust from being mixed into the liquid food. As a result, it is not necessary to remove the container material of the lot in which the abnormality has occurred due to dust mixing or the like, or to discard the packaging container, so that the cost of the packaging container can be reduced.
[0094]
In addition, since the generated vibration is transmitted to the entire container material, dust attached to the container material can be reliably removed.
[0095]
In another packaging container manufacturing apparatus of the present invention, there is further provided a dust elimination device for injecting a dust removing medium toward the container material to eliminate dust removed by the vibration source.
[0096]
In this case, the blown-off dust can be removed, so that the blown-down dust does not adhere to the container material again.
[Brief description of the drawings]
FIG. 1 is a conceptual diagram showing a process in a first dust removing unit according to a first embodiment of the present invention.
FIG. 2 is a perspective view showing a main part of the packaging container manufacturing apparatus according to the first embodiment of the present invention.
FIG. 3 is a conceptual diagram of a second dust removing unit according to the first embodiment of the present invention.
FIG. 4 is an enlarged view showing a main part of a second dust removing unit according to the first embodiment of the present invention.
FIG. 5 is an enlarged view showing a main part of a second dust removing unit according to the second embodiment of the present invention.
[Explanation of symbols]
21 bottomed cartons 41, 62 blower 43 nozzle 44 dust 61, 65 vibration generator 68, 71 vibrator Cb carton blanks

Claims (2)

(A) a vibration transmitting unit that is brought into contact with the container material before the liquid food is filled;
(B) An apparatus for producing a packaging container, comprising: a vibration generating source that generates vibration, transmits the vibration to the container material via the vibration transmitting unit, and wipes off dust attached to the container material. The packaging container manufacturing apparatus according to claim 1, further comprising a dust removing device that injects a dust removing medium toward the container material and removes dust removed by the vibration source.

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