JP5753940B2 - Blow molding system, production line including the same, and preform conveyor used in the same - Google Patents

Description

  The present invention relates to a blow molding system for performing blow molding, a production line for manufacturing a product in which a container manufactured by the blow molding system is filled with contents, and a preform conveyor used in these.

  As a production method for manufacturing containers such as polyethylene terephthalate bottles (hereinafter referred to as PET bottles) from preforms by blow molding, the preforms molded by a preform molding machine are stored at room temperature in an integrated container and stored. An offline system for supplying the preform to the blow molding machine, and the preform molding machine and the blow molding machine are directly connected via the preform cooling and conveying device, and the blow molding machine while forcibly cooling the preform being conveyed. It is known to supply online.

  In the case of the off-line method, the stored preform is exposed to the outside during conveyance until it is supplied to the blow molding machine. In the case of the on-line method, there is a case where it is exposed to the outside in the transport process after the forced cooling process in the preform cooling transport apparatus. The room temperature of the factory where the production line is installed may change due to climate change and the opening and closing of the factory door, and it is considered that a corresponding temperature change will occur during the same day. Such a change in room temperature causes a temperature variation in the preform being conveyed. In the case of the off-line method, the preform stored in the temperature-controlled storage is subject to temperature variations due to a change in room temperature during conveyance to the blow molding machine. As a result, there is a risk that the molding by the blow molding machine becomes unstable, the molding efficiency is deteriorated, and the quality of the molded product is not stable.

  Therefore, a blow molding machine is installed inside the temperature-controlled blow molding chamber, and the preform is transported to the blow molding machine by a conveyor installed in the blow molding chamber and supplied to the blow molding machine. A production line that suppresses temperature changes of the preform has been proposed (see, for example, Patent Document 1).

JP 2008-68494 A

  In the case of the above production line, the interior of the factory where the production line is provided is partitioned by the blow molding chamber, and entry and exit of the operator is restricted as much as possible. For this reason, it is difficult for an operator in charge of the operation of the blow molding machine to concurrently serve as an operation of another apparatus on the production line, and a dedicated operator must be prepared for the operation of the blow molding machine.

  Accordingly, an object of the present invention is to provide a blow molding system that does not require a blow molding chamber, a production line including the blow molding system, and a preform conveyor used in these systems.

  In the blow molding system (Bs) of the present invention, the preform (PF) stored in the storage (Sr2) in which the inside (Si) and the outside (So) are partitioned and the inside is temperature-controlled, A preform conveyor (2) to be transported to the outside, and a blow molding machine (3) for manufacturing a container by blow molding using the preform which is installed outside and transported to the outside by the preform conveyor as a material. And covering a section (Sco) from the boundary (B1) between the storage and the outside of the preform conveyor to the boundary (B2) between the outside and the blow molding machine, and allowing air to enter and exit from the outside. Conveyor cover (20) to be restricted and internal air supply for supplying internal air (Ia) existing inside the storage to a closed space (CS) partitioned by the conveyor cover A stage (53,67,71～73), those with a.

  According to this blow molding system, the preform conveyor for conveying the preform from the storage to the outside is covered with the conveyor cover from the boundary between the storage and the outside to the boundary between the outside and the blow molding machine. Air access is restricted. Then, the internal air of the storage is supplied to the closed space partitioned by the conveyor cover. Therefore, since the preform conveyed by the preform conveyor is not easily affected by the temperature outside the storage, it is necessary to partition the preform conveyor or both the preform conveyor and the blow molding machine in a blow molding chamber, for example. Therefore, it is possible to reduce the difference between the temperature condition of the preform conveyed outside the storage and the temperature condition of the preform stored in the storage.

  In one aspect of the blow molding system of the present invention, the blow molding machine may be provided with a molding machine cover (32) that restricts the outside of the air. According to this aspect, since the temperature condition inside the molding machine is unlikely to become unstable due to the molding machine cover, the quality of the production container is stabilized.

  In one aspect of the blow molding system of the present invention, the internal air supply means is provided in the closed space through a plurality of internal air introduction portions (71 to 73) provided at predetermined positions in the section with a distance in the conveyance direction. The internal air may be supplied. When the preform conveyance distance by the preform conveyor is long, there is a possibility that a temperature difference occurs between a location close to the storage and a location far away. According to this aspect, since the plurality of internal air introduction portions for supplying the internal air to the closed space of the preform conveyor are provided at a distance, it is possible to suppress the occurrence of the temperature difference as described above. it can.

  In this aspect, in the section of the preform conveyor, the upstream section (Sc1) that transports the preform with an uneven posture, and the downstream side of the upstream section that transports the preform, the alignment device (Us) And a downstream section (Sc2) that conveys the preform having the same posture, and at least one of the plurality of internal air introduction sections may be provided in the downstream section. In this case, the temperature condition of the preform in the downstream section close to the blow molding machine can be easily brought close to the temperature condition of the preform in the storage. For this reason, even if the difference of the above-mentioned temperature conditions of the preform becomes large in the upstream section of the preform conveyor, the temperature condition of the preform in the storage can be approached in the downstream section.

  In one aspect of the blow molding system of the present invention, the inside of the storage is temperature-adjusted by supplying adjusted air (Ta) discharged from an air supply source (50) capable of adjusting temperature, You may further provide the adjustment air supply means (80-84) which supplies the said adjustment air which the said air supply source discharged to the said closed space covered with the said conveyor cover. According to this aspect, since the adjusted air discharged from the air supply source common to the storage can be supplied to the closed space of the preform conveyor, the above-described difference in temperature conditions can be more easily reduced.

  In one aspect of the blow molding system of the present invention, the section of the preform conveyor is positioned on the upstream section (Sc1) for transporting the preform with an uneven posture, and on the transport downstream side of the upstream section, A downstream section (Sc2) that conveys the preform whose posture is aligned by the alignment device (Us), and a conveyor booth (90) that partitions the upstream section of the preform conveyor from the outside. Further, it may be provided. According to this aspect, the temperature environment up to the upstream section partitioned by the conveyor booth can be stabilized. Therefore, it is sufficient to supply the internal air to the downstream section without supplying the internal air to the closed space of the upstream section partitioned by the conveyor booth, so the temperature condition of the preform conveyed by the preform conveyor can be adjusted. It becomes easy.

  In this aspect, it may further include adjusting means (53, 67, 91) for adjusting the internal temperature condition of the storage and the temperature condition of the internal space of the conveyor booth equally. In this case, since it corresponds to substantially shortening the length of the preform conveyor existing outside the storage, it becomes easy to adjust the temperature conditions at various locations in the conveying direction of the preform conveyor.

  In one aspect of the blow molding system of the present invention, the preform conveyor is provided with an aligning device (Us) that arranges the preforms whose postures are not uniform into a state where the postures are aligned. The preform conveyor upstream in the transport direction from the aligning device may be provided in the interior of the storage. According to this aspect, a portion of the preform conveyor that conveys the preform whose posture is aligned by the alignment device exists outside the storage, and the portion corresponds to the section covered by the conveyor cover. . As a result, the length of the preform conveyor existing outside the storage is reduced as compared with the case where the aligning device exists outside the storage. Thereby, it becomes easy to adjust the temperature conditions of each place regarding the conveyance direction of a preform conveyor.

  The production line of the present invention is a production line (ML) including the blow molding system according to any one of claims 2 to 6, and is provided on the outside and manufactured by the blow molding machine. A filling machine (5) for producing a product by filling the sealed container with contents and sealing the container is provided, and the filling machine has a filling machine cover (41) for restricting the outside of the air. The blow molding machine and the filling machine are connected in a state in which the flow of air to and from the outside is restricted.

  According to this production line, it is possible to install the blow molding machine and the filling machine on the same floor outside the storage without partitioning each of the blow molding machine and the filling machine. This makes it easy to share the operations of the blow molding machine and the filling machine with a common operator without arranging a dedicated operator for the blow molding machine.

  In the production line, an inspection machine (4) provided outside and inspecting the molded state of the container produced by the blow molding machine before the contents are filled by the filling machine. The inspection machine is further provided with an inspection machine cover (40) for restricting the flow of air to and from the outside, and the inspection machine has the blower in a state where the flow of air to and from the outside is restricted. You may connect to each of a molding machine and the said filling machine. In this case, since it can be installed on the same floor without dividing the inspection machine together with the blow molding machine and the filling machine, it becomes easy to share the operations of the blow molding machine, the filling machine and the inspection machine with a common operator. .

  The preform conveyor of the present invention conveys the preform (PF) stored in the storage (Sr2) in which the inside (Si) and the outside (So) are partitioned and the inside is temperature-controlled to the outside. In the preform conveyor (Bs), the preform placed outside from the boundary (B1) between the storage of the preform conveyor and the outside is transported to the outside by the preform conveyor. A conveyor cover (20) for covering a section (Sco) to a boundary (B2) between the blow molding machine (3) for manufacturing a container by blow molding as a material and the outside (B2), and restricting the entry and exit of air from the outside; The internal air supply means (53, 67) for supplying the internal air (Ia) existing inside the storage to the closed space (CS) partitioned by the conveyor cover. And 71 to 73), but with a.

  This preform conveyor can obtain the same effects as the blow molding system described above. Moreover, this preform conveyor can also be set to the same aspect as each aspect of the blow molding system described above, and the same effect as each aspect can be obtained.

  In addition, in the present invention, restricting the entry and exit of air means not only completely shutting out the entry and exit of air, but also ensuring airtightness to the extent that the entry and exit of air is difficult, although the entry and exit of air is not completely blocked. Is also included. Moreover, in the above description, in order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are added in parentheses, but the present invention is not limited to the illustrated form.

  As described above, according to the blow molding system of the present invention, the preform conveyor is covered with the conveyor cover to restrict the outside air from entering and leaving, and the internal air of the storage is partitioned by the conveyor cover. Supplied to the closed space. For this reason, for example, it is not necessary to partition the preform conveyor or both the preform conveyor and the blow molding machine in a blow molding chamber, etc., and store it in the temperature condition of the preform being transported outside the storage and the reform storage It is possible to reduce the difference from the temperature condition of the preform that is used.

The figure which showed typically the whole structure inside the manufacturing factory in which the manufacturing line containing the blow molding system which concerns on one form of this invention was installed. The figure which showed each structure shown by the II section of FIG. 1 in detail. The figure which showed typically the cross section regarding the IIIa-IIIa line | wire of FIG. The figure which showed typically the cross section regarding the IIIb-IIIb line | wire of FIG. The figure which showed the state of the boundary vicinity of the inside and outside of a material storage. The figure which showed the state of the boundary vicinity of the exterior of a material storage, and a blow molding machine. The figure which showed the detail of the air conditioning equipment. The figure which showed the detail of the internal air introduction part. The figure which showed the detail of the adjustment air introduction part. The figure which showed the detail of the air conditioning equipment which concerns on the 2nd form of this invention.

  The manufacturing factory MF shown in FIG. 1 is constructed as a factory for manufacturing beverage foods. The manufacturing factory MF includes a building BL that is partitioned from the outside by an outer wall Ow that surrounds the periphery and a ceiling and a roof (both not shown) that block the upper portion of the outer wall Ow. In the following description, it is assumed that various sections and the upper part of the booth are closed by a ceiling or a roof unless otherwise specified.

  A production line ML for producing beverage food as a product is provided in the building BL. In the production line ML, a PET bottle as a container is manufactured, and the beverage food in a state filled in the manufactured PET bottle is manufactured in a state of being packed in a box for every predetermined number. The production line ML has the ability to produce soft drinks such as tea drinks, fruit juice drinks and carbonated drinks as drink foods. The production line ML is divided into a plurality of areas for each function.

  The raw material storage area A1 located on the right side of the building BL is partitioned by an outer wall Ow and an inner wall Iw1. The partitioned space functions as a raw material storage Sr1 for storing various raw materials of beverages, and storage facilities such as raw material tanks and raw material containers (not shown) are installed in the raw material storage Sr1. The blending area A2 is partitioned by the outer wall Ow and the inner wall Iw2. In the blending area A2, beverages are manufactured by processing various raw materials supplied from the storage facility of the raw material storage Sr1. In the blending area A2, various equipment such as a kneader required for beverage production and blending equipment such as a blending tank (all not shown) are provided.

  The material storage area A3 located on the left side of the building BL is partitioned by an outer wall Ow and an inner wall Iw3. The partitioned space functions as a material storage Sr2 that stores various materials such as a preform PF that is a material of the PET bottle and a cap that seals the mouth of the PET bottle. In the material storage Sr2, the inner Si and the outer So are partitioned by an inner wall Iw3. In addition, the external So in the case of this form means not the outside but the inside of the building BL outside the material storage Sr2 separated by the inner wall Iw3. The internal Si of the material storage Sr2 is temperature-adjusted to a temperature suitable for storing the preform PF in an air conditioning facility to be described later, and the humidity is also adjusted to be suitable for storage.

  The preform PF stored in the material storage Sr2 is supplied to the preform conveyor (hereinafter referred to as PF conveyor) 2 by the preform feeder 1. The preform PF supplied to the PF conveyor 2 is transported to the outside So of the material storage Sr2 and supplied to the blow molding machine 3 provided in the molding area A4. The blow molding machine 3 manufactures a PET bottle having a predetermined shape by blow molding using the preform PF as a raw material. The PET bottle manufactured by the blow molding machine 3 is inspected by an empty container inspection machine 4 for the presence or absence of molding abnormality in an empty state. The PET bottle inspected by the empty container inspection machine 4 is supplied to an aseptic filling machine 5 as a filling machine provided in the filling area A5. The aseptic filling machine 5 is supplied with a beverage which is a content prepared in the preparation area A2. The aseptic filling machine 5 fills the supplied beverage into a PET bottle and attaches a cap (not shown) to seal it. The aseptic filling machine 5 can be filled with a beverage in a state where it is cleaned and sterilized by the cleaning and sterilization system Ws and is hygienically managed.

  A product filled with a beverage in PET bottles and sealed with the aseptic filling machine 5 is conveyed by a product conveyor 6 to a labeler 7 provided in the packaging area A6. The labeler 7 attaches a label on which various information is displayed on the product. The product with the label attached is conveyed to the appearance inspection machine 8 by the product conveyor 6. The appearance inspection machine 8 inspects the presence or absence of defects on the appearance of the product such as defective label mounting. Passed products without defects are conveyed to the caser 9 by the product conveyor 6. The caser 9 packs acceptable products in a packaging box such as a cardboard box in a state where a predetermined number is collected. As a result, a boxed product M is obtained and is shipped to the market in this state.

  The feature of this embodiment is the production line ML and the blow molding system Bs included therein. The blow molding system Bs of this embodiment is a blower for manufacturing a PET bottle as a container using the PF conveyor 2 that conveys the preform PF stored in the material storage Sr2 and the preform PF conveyed by the PF conveyor 2 as a raw material. A molding machine 3.

  As shown in detail in FIG. 2, the preform feeder 1 installed in the material storage Sr <b> 2 includes a container introduction device 15 for feeding a container C in which a large number of preforms PF are stored, and a container for feeding the container introduction device 15. A container reversing device 16 that reverses C and charges the preform PF into the inlet 17 that opens upward, and a supply conveyor 18 that conveys the preform PF charged into the inlet 17 to the PF conveyor 2 are provided. Yes. The container Ce that is inverted by the container inverting device 16 and emptied is fed out by the container discharging device 19.

  The PF conveyor 2 conveys the preform PF supplied from the preform supply device 1 from the internal Si of the material storage Sr2 to the blow molding machine 3 via the external So according to the direction and path indicated by the arrows. The PF conveyor 2 is supported on the floor FL or the like by a plurality of support legs SL (see FIG. 4) arranged at predetermined intervals in the transport direction. The PF conveyor 2 includes an upstream section Sc1 that conveys a preform PF with an uneven posture, and a downstream that conveys a preform PF whose posture is aligned with the mouth facing up by an unscrambler Us as an alignment device. Section Sc2 is included.

  The upstream section Sc1 is provided with an inclined conveyance section 2a that conveys the preform PF (see FIG. 3A) in an irregular posture obliquely upward. The inclined conveyance unit 2a conveys the preform PF to the height of the conveyor stand Sz arranged at a position several meters higher than the floor FL of the building BL. The unscrambler Us is inclined obliquely downward from the conveyor stand Sz and is provided integrally with the PF conveyor 2. The unscrambler Us prepares the preform PF whose posture is not uniform in the process in which the preform PF is conveyed obliquely downward so that the posture is aligned as described above. The downstream section Sc2 includes a neck transport portion 2b that transports while supporting the mouth portion of the preform PF (see FIG. 3B) whose posture is aligned. The neck conveying portion 2b is disposed so as to be inclined obliquely downward, and its lower end is connected to the blow molding machine 3.

  As shown in FIGS. 3A and 3B, the PF conveyor 2 is covered with a conveyor cover 20. The conveyor cover 20 is provided on the PF conveyor 2 over the entire length from the starting point Sp of the PF conveyor 2 located in the internal Si of the material storage Sr2 to the connection position Cp of the blow molding machine 3. Therefore, in the PF conveyor 2, a section Sco from the boundary B1 between the internal Si and the external So of the material storage Sr2 to the boundary B2 between the external So and the blow molding machine 3 is covered with the conveyor cover 20. The conveyor cover 20 has a certain degree of airtightness. As a result, the entry and exit of air with the external So is restricted in the section Sco.

  As shown in FIG. 3A, the inclined transport unit 2a of the PF conveyor 2 includes a base 25a and a transport driving unit 26a that is provided on the base 25a and moves in the transport direction. The conveyor cover 20 is attached to the base 25a while ensuring a certain degree of airtightness. The upper surface 20a is made of a translucent material such as acrylic so that the inside can be visually recognized. The upper surface 20a is provided with a plurality of doors 20b arranged at predetermined intervals in the transport direction over almost the entire section of the PF conveyor 2. Each door 20b is provided on the conveyor cover 20 via a hinge 20c. Since each door 20b can be opened and closed as shown by a two-dot chain line, inspection, maintenance, etc. can be performed over almost the entire section of the PF conveyor 2. Each door 20b is provided with a handle 20d for easy opening and closing.

  The conveyor cover 20 that covers the neck conveyance unit 2b shown in FIG. 3B is also attached to the base 25b similarly to the inclined conveyance unit 2a of FIG. 3A. The conveyor cover 20 covers the base 25b and the drive conveyance unit 26b of the neck conveyance unit 2b. A certain degree of airtightness is secured by covering.

  As shown in FIG. 2, the PF conveyor 2 passes through the inner wall Iw3 in a state of being covered by the conveyor cover 20 when crossing the boundary B1 between the internal Si and the external So of the material storage Sr2. As shown in FIG. 4, a through window 30 is formed at a predetermined position of the boundary B1. The PF conveyor 2 passes through the through window 30 while being covered with the conveyor cover 20. A sealing plate 31 having a through-hole 31 a formed in close contact with the outer periphery of the PF conveyor 2 and the conveyor cover 20 is fitted into the through-window 30 in a state where the PF conveyor 2 and the conveyor cover 20 are inserted. As a result, the penetration window 30 is closed by the sealing plate 31 and the gap between the penetration window 30 and the PF conveyor 2 and the conveyor cover 20 disappears, so that air enters and exits between the internal Si and the external So of the material storage Sr2. Is limited.

  The boundary B2 between the external So and the blow molding machine 3 shown in FIG. 2 is processed in the same manner as the boundary B1 described above. As shown also in FIG. 5, the blow molding machine 3 includes a molding machine cover 32 that restricts the flow of air to and from the external So by covering the internal mechanism. With the PF conveyor 2 and the conveyor cover 20 passing through the through window 33 formed in the molding machine cover 32, a sealing plate 34 in which a through hole 34a closely contacting the outer periphery is formed is fitted into the through window 33. Yes. Thereby, airtightness is secured between the molding machine cover 32 and the PF conveyor 2 and the conveyor cover 20 at the boundary B2. As shown in FIG. 2, the molding machine cover 32 includes a main cover 32a that covers the entire internal mechanism of the blow molding machine 3, and a top cover 32b that covers an opening (not shown) on the top surface of the main cover 32a. . Since the blow molding machine 3 is covered with the molding machine cover 32 and the entry and exit of air with the external So is restricted, the temperature condition inside the molding machine is not easily made unstable by the molding machine cover 32, so that the quality of the production container is improved. Stabilize.

  As shown in FIG. 2, the preform PF conveyed to the blow molding machine 3 by the PF conveyor 2 is guided to the preform chute 35. The preform chute 35 sends the preform PF to the heater unit 36 of the blow molding machine 3. The preform chute 35 extends obliquely downward from the starting point 35a on the PF conveyor 2 side toward the end point 35b on the heater unit 36 side, and the preform PF guided to the preform chute 35 is in a fixed posture and is from the starting point 35a to the end point 35b. Led up to. The periphery of the heater section 36 is partitioned into a heater booth 37 to enhance heat insulation.

  The preform PF guided to the heater unit 36 is heated while moving in the direction of the arrow, and then sent to the molding unit 38. The molding unit 38 blow-molds the heated preform PF to produce a PET bottle having a predetermined shape. According to the blow molding system Bs, each of the PF conveyor 2 and the blow molding machine 3 can be installed on the same floor of the external So of the material storage Sr2 without partitioning. The PET bottle molded by the blow molding machine 3 is sent to the empty container inspection machine 4 for a predetermined inspection. The PET bottle whose inspection has been completed is sent to the aseptic filling machine 5.

  The empty container inspection machine 4 has an inspection machine cover 40 that covers the internal mechanism, and is connected to the blow molding machine 3 in a state in which the flow of air to and from the external So is restricted. The aseptic filling machine 5 also has a filling machine cover 41 that covers the internal mechanism. The filling machine cover 41 includes a main cover 41a that covers the entire internal mechanism and a top cover 41b that covers an opening (not shown) on the top surface of the main cover 41a. The empty container inspection machine 4 is connected to the aseptic filling machine 5 in a state where the flow of air to and from the external So is restricted.

  As described above, each of the blow molding machine 3, the empty container inspection machine 4, and the aseptic filling machine 5 is connected in a state where the flow of air to and from the external So is restricted. In other words, it can also be said that the blow molding machine 3 and the aseptic filling machine 5 are connected via the empty container inspection machine 4 in a state in which the flow of air to and from the external So is restricted. This makes it possible to install the blow molding machine 3, the empty container inspection machine 4, and the aseptic filling machine 5 on the same floor of the external So of the material storage Sr2 without partitioning them.

  Therefore, it becomes easy to share the operations of the blow molding machine 3, the empty container inspection machine 4 and the aseptic filling machine 5 with a common operator without arranging a dedicated operator for the blow molding machine 3. That is, since a common operator who operates each machine can be arranged in the operation area A7 shown in FIG. 1, an efficient work environment can be realized by the production line ML of this embodiment.

  Next, the air conditioning equipment applied to the blow molding system Bs will be described with reference to FIGS. As shown in FIG. 6, the building BL is provided with an air handling unit (hereinafter referred to as AHU) 50 as an air supply source. The AHU 50 generates temperature-adjusted and humidity-adjusted air Ta using a heat medium such as cold water, hot water, or steam supplied from an external heat source (not shown), and discharges the adjusted air Ta by an internal fan (not shown). To do. The adjusted air Ta discharged from the AHU 50 is distributed to the internal Si and the external So of the material storage Sr2. The adjusted air Ta distributed to the internal Si of the material storage Sr2 is supplied through a plurality of air supply ports 61 to 64 installed at predetermined locations such as a ceiling surface (not shown) of the material storage Sr2. The adjusted air Ta distributed to the outside So of the material storage Sr2 is supplied to the inside 37a of the heater booth 37 of the blow molding machine 3. The air inside the heater booth 37 a is sucked through the air inlet 65 and returned to the AHU 50.

  Adjusted air Ta is supplied to the internal Si of the material storage Sr2, and air from the all fresh air conditioner 51 installed in the building BL is also supplied through the air supply port 66. FIG. 6 illustrates a part of the material storage Sr2, so that air from the AHU 50 and the air conditioner 51 is also supplied to predetermined locations not shown in FIG. A plurality of ventilation holes of a circulation type air conditioner (not shown) are provided at the location. By such air conditioning equipment, the temperature and humidity of the internal Si of the material storage Sr2 are adjusted to those suitable for storing the preform PF.

  The internal air Ia existing in the internal Si of the temperature-controlled material storage Sr2 is supplied to the closed space CS (see FIG. 3B) partitioned by the conveyor cover 20. The internal air Ia is sucked from the air suction port 67 provided in the material storage Sr2 by the supply device 53, and is supplied to the closed space CS through a plurality (three in this embodiment) of the internal air introduction portions 71 to 73. The supply device 53, the air inlet 67, and the internal air introduction parts 71 to 73 correspond to the internal air supply means according to the present invention.

  The internal air introducing portions 71 to 73 are provided at predetermined positions in the downstream section Sc2 of the PF conveyor 2 with a distance in the transport direction. The internal air introduction parts 71 to 73 have substantially the same configuration. As shown in FIG. 7, the internal air introduction part 71 is connected to the lower part of the PF conveyor 2 so as to coincide with the introduction hole 75 formed in the base 25b of the neck transport part 2b and leading to the internal space CS. A portion 76 is provided. A passage 76a for guiding the internal air Ia is formed in the connecting portion 76, and a flexible pipe 77 for guiding the internal air Ia is connected to an end 76b of the connecting portion 76. The flexible tube 77 is connected to a duct (not shown) that communicates with the supply device 53.

  As shown in FIG. 6, the adjusted air Ta discharged from the AHU 50 is supplied to the upstream section Sc1 of the PF conveyor 2 and the section Sc3 provided with the unscrambler Us. The adjusted air Ta supplied to these sections Sc1 and Sc3 is taken out by the intermediate fan 80 from the branch position P1 of the path distributed from the AHU 50 to the blow molding machine 3 side. The adjusted air Ta taken out by the intermediate fan 80 is a closed space partitioned by the conveyor cover 20 through a plurality (four in this embodiment) of adjusted air introduction portions 81 to 84 provided at predetermined positions in the sections Sc1 and Sc3. Supplied to CS. The adjusted air introducing portions 81 to 84 are provided at predetermined positions in the sections Sc1 and Sc3 of the PF conveyor 2 with a distance in the transport direction. Each of the adjusted air introducing portions 81 to 84 has substantially the same configuration.

  As shown in FIG. 8, the adjusted air introduction part 82 has a connection part 86 connected to the enlarged part 20e where the conveyor cover 20 protrudes upward and the closed space CS is widened. The connecting portion 86 is attached to the enlarged portion 20e of the conveyor cover 20 so as to coincide with the introduction hole 85 that communicates with the internal space CS. A passage 86 a that guides the adjustment air Ta is formed in the connection portion 86, and a flexible pipe 87 that leads the adjustment air Ta is connected to an end portion 86 b of the connection portion 86. The flexible tube 87 is connected to a duct (not shown) that communicates with the intermediate fan 80. The adjusted air Ta is introduced into the enlarged portion 20e through the connecting portion 86 obliquely in the conveyance direction indicated by the arrow. For this reason, since it can suppress that adjustment air Ta hits preform PF conveyed by PF conveyor 2 too much, the temperature change by adjustment air Ta hitting preform PF directly can be suppressed. In the present embodiment, the intermediate fan 80 and the adjusted air introducing portions 81 to 84 correspond to the adjusted air supply means according to the present invention.

  According to the blow molding system Bs of the first embodiment, the PF conveyor 2 that conveys the preform PF from the material storage Sr2 to the external So is separated from the boundary B1 between the material storage Sr2 and the external So by the external So and blow molding machine. 3 is covered by the conveyor cover 20 and the air entry / exit with the external So is restricted. Then, the internal air Ia of the material storage Sr2 is supplied to the closed space CS partitioned by the conveyor cover 20. Accordingly, the preform PF conveyed by the PF conveyor 2 is not easily affected by the temperature of the external So of the material storage Sr2. Therefore, for example, the PF conveyor 2 or the PF conveyor 2 and the blow molding machine 3 in the blow molding chamber or the like. There is no need to divide both, and the difference between the temperature condition of the preform PF conveyed to the outside So of the material storage Sr2 and the temperature condition of the preform PF stored in the material storage Sr2 can be reduced.

  In the blow molding system Bs according to the first embodiment, the internal air introduction parts 71 to 73 are provided at a distance with respect to the transport direction, so that there is a temperature difference between a location close to the material storage Sr2 and a location far away. It is possible to suppress the occurrence. Moreover, since each of the internal air introduction parts 71 to 73 is provided in the downstream section Sc2, the temperature condition of the preform PF in the downstream section Sc2 close to the blow molding machine 3 is set to the temperature condition of the preform PF in the material storage Sr2. It becomes easy to approach. For this reason, even if the difference of the above-mentioned temperature conditions of the preform PF becomes large in the upstream section Sc1 of the PF conveyor 2, the temperature condition of the preform PF in the material storage Sr2 can be approached in the downstream section Sc2.

  Moreover, since the blow molding system Bs supplies the adjusted air Ta discharged from the AHU 50 to the closed space CS partitioned by the conveyor cover 20, the adjusted air Ta discharged from the AHU 50 shared with the material storage Sr2 is PF. It can be supplied to the closed space CS of the conveyor 2. For this reason, it becomes easier to reduce the difference between the temperature condition of the preform PF conveyed to the outside So of the material storage Sr2 and the temperature condition of the preform PF stored in the material storage Sr2.

(Second form)
Next, a second embodiment of the present invention will be described with reference to FIG. Since the 2nd form is common with the 1st form except air conditioning equipment, the same referential mark is attached to a drawing and the explanation is omitted to the same composition as the 1st form. For configurations not shown in FIG. 9, the description of the first embodiment and the drawings are referred to as appropriate.

  As shown in FIG. 9, in the blow molding system Bs and the production line ML of the present embodiment, a part of the upstream section Sc1 of the PF conveyor 2 and the section Sc3 provided with the unscrambler Us are respectively connected to the material storage Sr2. A conveyor booth 90 is provided to partition the external So. The interior space IS of the conveyor booth 90 is adjusted to a temperature condition equivalent to that of the interior Si of the material storage Sr2.

  In the form of FIG. 9, the internal air Ia flowing through the downstream path of the supply device 53 is taken out from the branch position P2 and introduced into the internal space IS of the booth 90 through the air supply port 91. Si and the internal space IS of the conveyor booth 90 have the same temperature condition. This corresponds to the fact that the length of the PF conveyor 2 existing in the external So of the material storage Sr2 is substantially shortened, so that it becomes easy to adjust the temperature conditions at various locations in the transport direction of the PF conveyor 2. . Since the supply device 53, the air suction port 67, and the air supply port 91 in the form of FIG. 9 adjust the temperature condition of the internal Si of the material storage Sr2 and the temperature condition of the internal space IS of the conveyor booth 90 equally, This corresponds to the adjusting means according to the invention.

  9, or in addition to the configuration of FIG. 9, a supply unit (not shown) for supplying the regulated air Ta discharged from the AHU 50 to the internal space IS is provided in the conveyor booth, It is also possible to install a dedicated air conditioner (not shown), or to provide a communication path (not shown) that connects the internal Si of the material storage Sr2 and the internal space IS of the conveyor booth 90. When the present invention is implemented in these forms, at least one of the supply unit, the air conditioner, and the communication path corresponds to the adjusting unit according to the present invention.

  As described above, instead of setting the internal Si of the material storage Sr2 and the internal space IS of the conveyor booth 90 to have the same temperature condition, the conveyor booth 90 divides these sections Sc1 and Sc3. It is also possible to change to a form in which the internal air Ia and the adjustment air Ta are not supplied. In this case, the temperature condition of the PF container 2 partitioned by the conveyor booth 90 can be stabilized because it is not affected or hardly affected by the air of the external So. Therefore, it is sufficient to supply the internal air Ia to the downstream section Sc2 or the like without supplying the internal air Ia or the like to the closed space CS defined by the conveyor booth, so the preform PF conveyed by the PF conveyor 2 is sufficient. It is easy to adjust the temperature conditions.

  The present invention is not limited to the above embodiments, and can be implemented in various forms within the scope of the gist of the present invention. The blow molding system Bs of each of the above forms manufactures a PET bottle as a container. However, as long as the container is manufactured by blow molding, a plastic bottle made of a plastic other than polyethylene terephthalate may be a molding target. . Moreover, as long as it is a container manufactured by blow molding, its shape is not limited, and the object to be molded may not be a bottle shape. For example, a container having a wide mouth shape in which the mouth portion is not narrowed may be a molding object. Is possible.

  The contents filled in the container are not limited to beverages, and may be seasonings or non-food liquids, for example. Further, the contents are not limited to liquids, and solids such as powdery seasonings and confectionery, and gels having an intermediate property between liquids and solids can be filled into the container.

  In each of the above embodiments, the empty container inspection machine 4 for inspecting the molded state of the blow-molded empty container is provided, but the installation of the inspection machine is optional, and the present invention is implemented in a form in which the inspection machine is omitted. It can also be implemented. Moreover, in each said form, although the process to the empty container inspection machine 4 was made into the molding area A4 for convenience, the process to the blow molding machine 3 is made into the molding area A4, and the process after the empty container inspection machine 4 is made into the filling area A5. Good. In short, the empty container inspection machine 4 may be provided in any area of the molding area A4 or the filling area A5.

  In each of the above embodiments, the PF conveyor 2 penetrates the inner wall Iw3 and the molding machine cover 32 together with the conveyor cover 20 at the boundary B1 between the material storage Sr2 and the external So and the boundary B2 between the external So and the blow molding machine 3, respectively. As a result, the section Sco from the boundary B1 to the boundary B2 is covered by the conveyor cover 20, but the present invention is not limited to this form. For example, you may implement this invention in the form which covers the said area | region with the conveyor cover which started from the boundary B1 and made the boundary B2 into the end point.

  The PF conveyor 2 of each form described above is provided with an unscrambler Us that adjusts the posture of the preform PF having an uneven posture, and the unscrambler Us is present outside the material storage Sr2. However, like the inner wall Iw3 ′ shown by the two-dot chain line in FIG. 9, the width of the material storage Sr2 is enlarged, and the unscrambler Us and the PF conveyor 2 upstream of the unscrambler Us are transported to the inner Si. It is also possible to carry out the present invention in a form in which is provided. In the case of this form, a part of the PF conveyor 2 that conveys the preform PF whose posture is aligned by the unscrambler Us exists in the external So of the material storage Sr2, and that part is in the conveyor cover 20 This corresponds to the covered section Sco. As a result, the length of the PF conveyor 2 existing in the external So of the material storage Sr2 is shortened as compared with the above-described embodiments in which the unscrambler Us exists in the external So of the material storage Sr2. Thereby, it becomes easy to adjust the temperature condition of each place regarding the conveyance direction of PF conveyor.

  The material storage Sr2 stores materials used for manufacturing products in addition to the preform PF. However, the present invention may be implemented in a form using a storage for storing only the preform PF. .

  The number and arrangement form of the internal air introduction portions 71 and the like in each of the above forms are arbitrary. For example, you may implement in the form which introduces internal air at equal intervals regarding the conveyance direction of PF conveyor 2. FIG. The same applies to the number and arrangement of the adjusted air introduction portions 81 and the like. However, the supply of the regulated air Ta of each of the above forms to the closed space CS is arbitrary, and the present invention may be implemented in a form of supplying only the internal air Ia without supplying the regulated air Ta.

2 PF conveyor 3 Blow molding machine 4 Empty container inspection machine (inspection machine)
5 Aseptic filling machine (filling machine)
20 Conveyor Cover 32 Molding Machine Cover 40 Inspection Machine Cover 41 Filling Machine Cover 50 AHU (Air Supply Source)
53 Supply Device 67 Air Suction Ports 71-73 Internal Air Introducing Unit 80 Intermediate Fan 81-84 Adjusted Air Introducing Unit 90 Conveyor Booth 91 Air Supply Port Bs Blow Molding System B1, B2 Boundary CS Closed Space ML Production Line Ia Internal Air PF Reform Sco Section Sc1 Upstream section Sc2 Downstream section Sc3 Section with unscrambler Si Internal So External Sr2 Material storage (storage)
Ta Adjusted Air Us Unscrambler

Claims (11)

A preform conveyor that conveys the preform stored in a storage chamber in which the inside and the outside are partitioned and the inside is temperature controlled;
A blow molding machine for producing a container by blow molding using the preform that is installed outside and conveyed to the outside by the preform conveyor;
A conveyor cover that covers a section from a boundary between the storage and the outside of the preform conveyor to a boundary between the outside and the blow molding machine, and restricts the entry and exit of air from the outside;
Internal air supply means for supplying internal air present in the interior of the storage to a closed space partitioned by the conveyor cover;
Blow molding system.   The blow molding system according to claim 1, wherein the blow molding machine is provided with a molding machine cover that restricts the entry and exit of air from and to the outside.   3. The blow according to claim 1, wherein the internal air supply means supplies the internal air to the closed space through a plurality of internal air introduction portions provided at predetermined positions in the section with a distance in the conveyance direction. Molding system. In the section of the preform conveyor, an upstream section that transports the preform with a non-uniform posture, and a preform that is positioned downstream of the upstream section and transported in the posture and aligned by the alignment device And the downstream section
The blow molding system according to claim 3, wherein at least one of the plurality of internal air introduction portions is provided in the downstream section. The inside of the storage is temperature-adjusted by supplying adjusted air discharged by an air supply source capable of adjusting temperature,
The blow according to any one of claims 1 to 4, further comprising adjusted air supply means for supplying the adjusted air discharged from the air supply source to the closed space covered by the conveyor cover. Molding system. In the section of the preform conveyor, an upstream section that transports the preform with a non-uniform posture, and a preform that is positioned downstream of the upstream section and transported in the posture and aligned by the alignment device And the downstream section
The blow molding system according to any one of claims 1 to 3, further comprising a conveyor booth that divides the upstream section of the preform conveyor from the outside.   The blow molding system according to claim 6, further comprising an adjusting unit that adjusts the temperature condition inside the storage room and the temperature condition inside the conveyor booth equally. The preform conveyor is provided with an alignment device that arranges the preforms whose postures are not uniform into a state where the postures are aligned,
The blow molding system according to any one of claims 1 to 3, wherein the alignment device and the preform conveyer upstream of the alignment device are provided in the interior of the storage. A production line comprising the blow molding system according to any one of claims 2 to 8,
Provided with a filling machine for producing a product by being filled and sealed in the container produced by the blow molding machine, provided outside,
The filling machine is provided with a filling machine cover that restricts the entry and exit of air from and to the outside.
The blow molding machine and the filling machine are production lines that are connected in a state in which the flow of air to and from the outside is restricted. An inspection machine which is provided outside and further inspects the molded state of the container manufactured by the blow molding machine before the contents are filled by the filling machine;
The inspection machine is provided with an inspection machine cover that restricts the entry and exit of air from the outside.
The production line according to claim 9, wherein the inspection machine is connected to each of the blow molding machine and the filling machine in a state in which the outside of the air is restricted. In a preform conveyor that conveys the preform stored in a storage room in which the inside and the outside are partitioned and the inside is temperature-controlled,
Blow molding that manufactures a container by blow molding using the preform that is installed outside from the boundary between the storage and the outside of the preform conveyor and is transported to the outside by the preform conveyor. A conveyor cover that covers a section up to the boundary between the machine and the outside, and restricts the entry and exit of air from the outside;
Internal air supply means for supplying internal air present in the interior of the storage to a closed space partitioned by the conveyor cover;
Preform conveyor equipped with.