JP6861008B2 - Container manufacturing equipment and container manufacturing method - Google Patents

Description

The present invention is provided with a conveyor chamber in which a conveyor for transporting resin preforms is installed and a blow molding machine for producing a resin container by blow molding the preform conveyed by the conveyor. The present invention relates to a container manufacturing facility or the like provided with a molding machine room provided in this order.

Conventionally, in a manufacturing plant for a beverage in a resin container as an example of a liquid product in a resin container, a polyethylene terephthalate bottle (hereinafter referred to as PET bottle) is filled with the beverage in a sterile environment as an example of a resin container. A PET bottle manufacturing facility (container manufacturing facility) having a blow molding machine for blow molding a PET bottle from a PET preform is provided in front of the machine.

In the blow molding machine, the preform is heated to about 100 ° C. and softened, then set in the mold, and while being stretched by a stretching rod inserted from the mouth, high-pressure air is blown and inflated. , Blow-molded into a predetermined shape along the mold.

In such blow molding, if the temperature of the preform before blow molding and the temperature of the mold of the blow molding machine are not maintained at a preferable temperature, the wall thickness and dimensions of the obtained PET bottle will change. Or, some discoloration occurs, and the yield decreases.

In order to solve this problem, Patent Document 1 discloses a technique in which a blow molding machine itself is installed in a molding machine room and the temperature and humidity in the molding machine room are controlled by using a temperature control mechanism.

Further, Patent Document 2 also describes the temperature of a storage chamber for storing preforms and a conveyor chamber in which a conveyor for transporting preforms stored in the storage chamber is installed to a blow molding machine by using a temperature control mechanism. The technology for controlling the temperature is disclosed.

The preform was blow-molded after being received in the storage room and aged for at least 24 hours.

Japanese Unexamined Patent Publication No. 2008-68494 Japanese Unexamined Patent Publication No. 2015-063143

However, installing and operating a temperature control system that regulates all temperatures in the storage room, conveyor room, and molding machine room to a predetermined temperature throughout the year significantly increases the initial cost and running cost in PET bottle manufacturing equipment. It was the cause of increasing the temperature.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a container manufacturing facility and a container manufacturing method capable of reducing costs.

In order to achieve the above object, the characteristic configuration of the container manufacturing equipment according to the present invention is a conveyor chamber in which a conveyor for conveying a resin preform is installed, and the preform conveyed by the conveyor. A container manufacturing facility in which a molding machine room in which a blow molding machine for manufacturing a resin container is installed is provided in this order, and the conveyor covers the conveyor in the conveyor chamber to transport the preform. The point is that a conveyor cover for partitioning the space and a temperature control mechanism configured to adjust the temperature in the conveyor chamber to a predetermined first temperature throughout the year are provided.

In a blow molding machine that manufactures a resin container by blow molding a resin preform, the temperature of the preform is at least the blow molding machine from the viewpoint of stabilizing the quality such as the wall thickness and dimensions of the obtained container. It needs to be adjusted to a predetermined first temperature before being transported to.

That is, the predetermined first temperature is adjusted in advance from the viewpoint of stabilizing the quality such as the wall thickness and dimensions of the container obtained in the blow molding machine that manufactures the resin container by blow molding the resin preform. It is a preferable temperature to be set, and it is determined according to the material and shape of the preform and the capacity of the blow molding machine.

The temperature of the preform is regulated by exchanging heat with the air in the conveyor chamber as it passes through the conveyor chamber. Therefore, the temperature in the conveyor chamber is adjusted to a predetermined first temperature throughout the year by using a temperature adjusting mechanism, so that the temperature of the preform conveyed to the blow molding machine is adjusted to the predetermined first temperature. Since the preform does not need to be aged for a long time in the storage room, the initial cost or the running cost can be reduced to some extent.

Since the preform transported by the conveyor is transported in the transport space defined by the conveyor cover, the risk of foreign matter adhering to the preform is reduced.

In the present invention, in the temperature control mechanism, the temperature in the storage chamber for storing the preform before being conveyed by the transport conveyor is at least the maximum annual temperature in the storage chamber from the first temperature. When the temperature is equal to or higher than the second temperature obtained by subtracting the absolute value of the temperature difference between the first temperature and the first temperature, the temperature in the storage chamber is not adjusted, and when the temperature is lower than the second temperature, the temperature in the storage chamber is adjusted. It is preferable that the temperature is adjusted to the second temperature or higher.

The temperature inside the storage chamber fluctuates according to the outside air temperature of the storage chamber. The temperature of the preform stored in the storage chamber also fluctuates according to the temperature in the storage chamber.

For example, when the outside temperature is very high, such as during the daytime in summer, the temperature in the storage room rises accordingly, and the temperature of the stored preform also exceeds the predetermined first temperature. On the contrary, when the outside temperature is very low, such as in the early morning of winter, the temperature in the storage room is lowered accordingly, and the temperature of the stored preform is also much lower than the predetermined first temperature.

Therefore, when the temperature in the storage chamber is lower than the second temperature, that is, the temperature obtained by subtracting the absolute value of the temperature difference between the maximum annual temperature and the first temperature in the storage chamber from the first temperature, the storage chamber temperature control mechanism The temperature in the storage chamber is adjusted to the second temperature or higher. If the temperature in the storage chamber is equal to or higher than the second temperature, temperature control is not required.

The temperature control mechanism may adjust the temperature in the storage chamber to the second temperature or higher when the minimum temperature in the storage chamber is actually lower than the second temperature. The temperature in the storage chamber may be adjusted to a second temperature or higher. Such a temperature control mechanism makes it possible to control the temperature of the preform with a minimum investment.

In the present invention, it is preferable that the temperature adjusting mechanism is provided with a staying time adjusting mechanism configured to adjust the staying time of the preform in the conveyor chamber.

Since the residence time adjustment mechanism can adjust the residence time of the preform in the conveyor chamber, the temperature of the preform conveyed by the conveyor can be surely adjusted to the first temperature before reaching the molding machine chamber. it can.

In the present invention, it is preferable that the residence time adjusting mechanism is configured to adjust at least one of the transport speed and the transport distance of the preform by the transport conveyor.

The dwell time adjusting mechanism can adjust the dwell time of the preform in the conveyor chamber by adjusting at least one of the transfer speed or the transfer distance of the preform by the transfer conveyor.

In the present invention, it is preferable that the temperature control mechanism is further configured to adjust the temperature in the molding machine chamber to the first temperature throughout the year.

In a blow molding machine that manufactures a resin container by blow molding a resin preform, a blow molding machine is installed from the viewpoint of stabilizing the quality such as the wall thickness and dimensions of the obtained container. The temperature of the cabin needs to be adjusted to a predetermined first temperature. By the temperature control mechanism, the temperature of the molding machine room where the blow molding machine is installed is also adjusted to the first temperature throughout the year.

In the present invention, it is preferable that a humidity control mechanism configured to control the relative humidity in the molding machine chamber to a predetermined humidity or lower throughout the year is provided.

In a blow molding machine that manufactures a resin container by blow molding a resin preform, a blow molding machine is installed from the viewpoint of stabilizing the quality such as the wall thickness and dimensions of the obtained container. The relative humidity of the cabin must be below the specified humidity. The humidity control mechanism adjusts the relative humidity of the molding machine room to a predetermined humidity or less. The relative humidity of the storage chamber and the conveyor chamber may be the same.

In the present invention, a preform feeder that supplies the preform from the storage chamber to the conveyor between the storage chamber for storing the preform before being conveyed by the conveyor and the conveyor chamber. It is preferable that the supply chamber is provided with the above-mentioned, and the temperature control mechanism is further configured to adjust the temperature of the supply chamber to the first temperature throughout the year.

When a supply chamber in which a preform feeder is installed is arranged between the storage chamber and the conveyor chamber, it is preferable that the temperature of the supply chamber is also adjusted to the first temperature throughout the year. Therefore, the temperature in the supply chamber is adjusted to a predetermined first temperature by the temperature control mechanism. The relative humidity in the supply chamber may be favorable.

The characteristic configuration of the container manufacturing method according to the present invention for achieving the above-mentioned object is a transfer step in which a resin preform is conveyed by a transfer conveyor, and a blow molding of the preform conveyed by the transfer step. A blow molding step for manufacturing a resin container is provided in this order, and in the transfer step, a predetermined number of temperatures in a conveyor chamber in which the transfer conveyor is installed is provided throughout the year. The point is that a temperature control step of adjusting to one temperature is performed.

In the present invention, in the temperature control step, the temperature at which the preform is stored in the storage step in which the preform is stored before being transported by the transfer step is at least the storage from the first temperature. When the temperature is equal to or higher than the second temperature obtained by subtracting the absolute value of the temperature difference between the annual maximum temperature in the step and the first temperature, the temperature is not adjusted in the storage step, and when the temperature is lower than the second temperature, the temperature is not adjusted. It is preferable to adjust the temperature to the second temperature or higher in the storage step.

In the present invention, it is preferable that the temperature control step includes a stay time adjusting step for adjusting the staying time of the preform in the conveyor chamber.

In the present invention, it is preferable that the staying time adjusting step adjusts at least one of the conveying speed and the conveying distance of the preform by the conveying step.

In the present invention, it is preferable that the temperature control step further adjusts the temperature in the blow molding step to the first temperature throughout the year.

In the present invention, it is preferable that a humidity control step for adjusting the relative humidity in the blow molding step to a predetermined humidity or less throughout the year is provided.

In the present invention, a supply step for supplying the preform from the storage step to the transport step is provided between the storage step for storing the preform before being transported by the transport step and the transport step. Therefore, it is preferable that the temperature control step further adjusts the temperature in the supply step to the first temperature throughout the year.

It is the schematic of the container manufacturing equipment. It is explanatory drawing of a conveyor room. It is explanatory drawing of time and temperature of preform in a conveyor chamber. It is explanatory drawing of time and temperature of preform in a conveyor chamber.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, in a manufacturing plant for beverages in resin containers as an example of liquid products in resin containers, a filling machine for filling PET bottles with beverages in a sterile environment is installed as an example of resin containers. A container manufacturing facility 1 according to the present invention equipped with a blow molding machine for blow molding a PET bottle from a PET preform is provided in front of the filling machine room 6. The container manufacturing method according to the present invention is suitably realized by the container manufacturing equipment 1.

The container manufacturing equipment 1 includes a storage chamber 2, a supply chamber 3, a conveyor chamber 4, and a molding machine chamber 5. The storage room 2, the supply room 3, the conveyor room 4, and the molding machine room 5 are divided into individual areas by partitions or the like in a common building, but the preform P which is the source of PET bottles (see FIG. 2). ) Is communicated via the transport route.

The storage chamber 2 is an area for receiving and storing a container containing a large number of preforms P, and the storage step provided in the container manufacturing method according to the present invention is executed in the storage chamber 2.

The supply chamber 3 is provided with a preform feeder that takes out the preform P from the container stored in the storage chamber 2 on a supply conveyor connected to a conveyor C (see FIG. 2) provided in the conveyor chamber 4. It is an area, and the supply step provided in the container manufacturing method according to the present invention is executed in the supply chamber 3. The supply conveyor is composed of a roller conveyor.

As shown in FIG. 2, the conveyor chamber 4 is an area in which a conveyor C for transporting the preform P taken out from the container by the preform feeder is installed, and the container manufacturing method according to the present invention is provided in the conveyor chamber 4. The transport step provided by is executed.

The conveyor C is covered by the conveyor cover V over its entire length, and the conveyor cover V partitions the transport space for the preform P. Since the preform P transported by the conveyor C is covered by the conveyor cover V, the possibility of foreign matter adhering to the preform P is reduced. The conveyor cover V is preferably made of a translucent resin. As a result, the state of the preform P during transportation can be visually recognized.

The conveyor C is composed of a roller conveyor having an accumulation function. In the transfer conveyor C, the transfer speed of the preform P can be adjusted by controlling the rotation and stop of the rollers for driving the transfer conveyor C and the rotation speed by a control unit (not shown), and the accumulation function allows the transfer conveyor C to be operated. It is configured so that the transportation of the reform P can be temporarily stopped. That is, the conveyor C and the control unit constitute a staying time adjusting mechanism included in the container manufacturing equipment 1 according to the present invention, whereby the staying time adjusting step provided in the container manufacturing method according to the present invention is executed.

The molding machine room 5 is an area in which a blow molding machine that blows the preform P conveyed by the transport conveyor C to form a PET bottle is installed. In the molding machine room 5, the container manufacturing method according to the present invention can be used. A blow molding step is performed.

In this blow molding machine, the preform P is heated to about 100 ° C. and softened, and then set in the mold, and high-pressure air is blown while being stretched by a stretching rod inserted from the mouth. It is inflated and blow-molded into a predetermined shape along the mold.

Empty PET bottles manufactured by the blow molding machine are inspected for molding abnormalities by an empty container inspection machine (not shown). The PET bottle determined to be normal by the empty container inspection machine is filled with a beverage by a filling machine provided in the filling machine chamber 6. PET bottles filled with beverages are capped, sealed, and shipped by a cap tightening device (not shown).

In the storage chamber 2, a plurality of fan coil units 10, a thermometer 11 for detecting the temperature inside the storage chamber 2, and an operation of the fan coil unit 10 are controlled based on the temperature detected by the thermometer 11. A control unit 12 is provided. The fan coil unit 10 includes a heat exchanger and a fan. The heat exchanger uses circulating water at about 70 ° C. used in a PET bottled beverage manufacturing factory as a heat source. The heat exchanger may use the exhaust heat of the blow molding machine as a heat source. In this way, energy saving is achieved by using the existing heat source.

An air handling unit 20 for adjusting the temperature in each chamber is connected to the supply chamber 3, the conveyor chamber 4, and the molding machine chamber 5. Specifically, the exhaust ports provided in each of the supply chamber 3, the conveyor chamber 4, and the molding machine chamber 5 are connected to the suction side of the air handling unit 20 via the suction pipe 21, and the supply chamber 3, the conveyor chamber 4 are connected. The air supply ports provided in each of the molding machine chamber 5 and the molding machine chamber 5 are connected to the discharge side of the air handling unit 20 via the air supply pipe 22.

The air handling unit 20 includes a blower, a heat exchanger, a humidifier, a dehumidifier, and the like. The blower, heat exchanger, humidifier, dehumidifier, etc. are controlled by the control unit 23, and the temperature and humidity of the air sucked from the supply chamber 3, the conveyor chamber 4, and the molding machine chamber 5 are adjusted to control the supply chamber 3, It is configured to supply to the conveyor chamber 4 and the molding machine chamber 5.

The amount of suction from the supply chamber 3, the conveyor chamber 4, and the molding machine chamber 5 to the air handling unit 20 can be individually adjusted by the control unit 23 controlling the damper 24 provided in the suction pipe 21. There is.

Further, the amount of air supplied from the air handling unit 20 to the supply chamber 3, the conveyor chamber 4, and the molding machine chamber 5 can be individually adjusted by the control unit 23 controlling the damper 25 provided in the air supply pipe 22. It has become.

The supply chamber 3, the conveyor chamber 4, and the molding machine chamber 5 are controlled to a positive pressure while having a certain degree of airtightness in order to prevent foreign matter from being mixed. Further, in the conveyor chamber 4, the temperature of the air around the conveyor cover V is directly adjusted, but the temperature of the preform P conveyed through the gap of the conveyor cover V or the conveyor cover V is the temperature of the preform P. Be adjusted.

In a blow molding machine that blow-molds a PET-made preform P to manufacture a PET bottle, the temperature of the preform P is at least blow-molded from the viewpoint of stabilizing the quality such as the wall thickness and dimensions of the obtained PET bottle. It must be adjusted to 28 ° C by the time it is delivered to the machine. That is, in this embodiment, 28 ° C. is a predetermined first temperature.

Therefore, the control unit 23 adjusts the temperature in each of the supply chamber 3, the conveyor chamber 4, and the molding machine chamber 5 to 28 ° C. throughout the year. The temperatures in the supply chamber 3, the conveyor chamber 4, and the molding machine chamber 5 may have a slight deviation (± 2 to 3 ° C.) from the predetermined first temperature (28 ° C.). The width of this deviation depends on the performance of the fan coil unit 10 and the air handling unit 20. The control unit 23 operates the air handling unit 20 so that the relative humidity in the molding machine room 5 is at least 50% or less throughout the year. The relative humidity of the supply chamber 3 and the conveyor chamber 4 may be favorable.

By the way, the temperature inside the storage chamber 2 fluctuates according to the outside air temperature of the storage chamber 2. The temperature of the preform P stored in the storage chamber 2 also fluctuates according to the temperature in the storage chamber 2.

For example, when the outside air temperature is very high, such as during the daytime in summer, the temperature inside the storage chamber 2 also rises accordingly, and the temperature of the stored preform P also exceeds a predetermined first temperature. On the contrary, when the outside temperature is very low, such as in the early morning of winter, the temperature inside the storage chamber 2 also decreases accordingly, and the temperature of the stored preform P is much lower than the predetermined first temperature. become.

In FIG. 3, the preform P is stored in the storage chamber 2 in which the indoor temperature is adjusted to 38 ° C. for an appropriate time so that the temperature of the preform P becomes familiar with the indoor temperature of the storage chamber 2, and then the indoor temperature. The state of the temperature change of the outer surface and the inner surface of the preform P when staying in the conveyor chamber 4 adjusted to 28 ° C. for about 10 minutes is shown. The temperature of Preform P was measured with a non-contact thermometer. From this result, it can be seen that the temperature of the preform P was cooled to about 28 ° C. after about 10 minutes on both the outer surface having a temperature of about 38 ° C. and the inner surface having a temperature of about 37 ° C.

In FIG. 4, the preform P is stored in the storage chamber 2 in which the indoor temperature is adjusted to 5 ° C. for an appropriate time so that the temperature of the preform P becomes familiar with the indoor temperature of the storage chamber 2, and then the indoor temperature. The state of the temperature change of the outer surface and the inner surface of the preform P when staying in the conveyor chamber 4 adjusted to 28 ° C. for about 10 minutes is shown. The temperature of Preform P was measured with a non-contact thermometer. The state of temperature change is shown. From this result, the outer surface of the preform P at about 3 ° C. was only warmed to about 11 ° C. in about 10 minutes, and the inner surface at about 4 ° C. was also warmed to only about 13 ° C. in about 10 minutes.

When the preform P passes through the conveyor chamber 4, the temperature of the preform P is regulated by exchanging heat with the air in the conveyor chamber 4. Therefore, as shown in FIG. 4, when the temperature of the preform P is too low, it is considered that the preform P is gradually adjusted to 28 ° C. by significantly increasing the staying time in the conveyor chamber 4. However, it is not preferable to significantly increase the staying time in the conveyor chamber 4 and reduce the production speed of PET bottles in the container manufacturing equipment 1.

Therefore, when the temperature inside the storage chamber 2 is further lower than the temperature (18 ° C.) that is 10 ° C. lower than the first temperature (28 ° C.), the fan coil unit 10 sets the temperature inside the storage chamber 2 to the second temperature (18 ° C.). ) Adjust more than that.

In the above example of FIG. 4, since the preform P can exchange heat at about 10 ° C. in the conveyor chamber 4, when the temperature of the preform P is too low as in the example of FIG. Is raised to about 25 ° C. with a margin of temperature in the storage chamber 2.

Then, since the temperature of the preform P is preheated to about 20 ° C. in the storage chamber 2, it can be warmed up to about 28 ° C. in the conveyor chamber 4 if the staying time is about 10 minutes.

In the area where the container manufacturing equipment 1 is installed, if the temperature does not drop below 18 ° C. all day long in a certain season, it is necessary to adjust the indoor temperature of the storage room 2 in the season. Since it is eliminated, running costs can be reduced.

In the above-described embodiment, the fan coil unit 10, the thermometer 11, the control unit 12, the air handling unit 20, the suction pipe 21, the air supply pipe 22, the control unit 23, the damper 24, and the damper 25 are the container manufacturing according to the present invention. It constitutes a temperature control mechanism provided in the equipment 1. Then, the temperature control mechanism includes the temperature control step provided in the container manufacturing method according to the present invention. Further, the air handling unit 20, the suction pipe 21, the air supply pipe 22, the control unit 23, the damper 24 and the damper 25 constitute a humidity control mechanism provided in the container manufacturing equipment 1 according to the present invention. Then, the humidity control mechanism includes the humidity control step provided in the container manufacturing method according to the present invention.

When the minimum temperature in the storage chamber 2 detected by the hygrometer 11 is lower than the second temperature (18 ° C.), the control unit 12 operates the fan coil unit 10 to adjust the temperature in the storage chamber 2. Not limited to the configuration that adjusts to the second temperature (18 ° C) or higher, the fan coil unit 10 is operated to adjust the temperature in the storage chamber 2 to the second temperature (18 ° C) or higher at a preset time. You may. In this case, the hygrometer 11 is unnecessary.

Since the temperature of the storage chamber 2 is adjusted by the fan coil unit 10, the initial cost and running cost can be reduced as compared with a large-scale equipment such as the air handling unit 20. However, the fan coil unit 10 may not be provided, and the temperature inside the storage chamber 2 may also be adjusted by the air handling unit 20.

Since the staying time of the preform P in the conveyor chamber 4 can be adjusted by the staying time adjusting mechanism and the staying time adjusting step as described above, the temperature of the preform P conveyed by the conveyor C can be adjusted to the temperature of the preform P in the molding machine room. It is also possible to surely adjust to the first temperature by the time it reaches 5. Therefore, the staying time adjusting mechanism is also a part of the temperature adjusting mechanism. Similarly, the dwell time adjustment step is also a part of the temperature adjustment step.

The transport conveyor C may have a variable transport width of the preform P. In this case, the staying time of the preform P in the conveyor chamber 4 can be shortened by narrowing the transport width, and the staying time of the preform P in the conveyor chamber 4 can be lengthened by widening the transport width. ..

Further, the transfer conveyor C may be configured so that a plurality of transfer paths having different path lengths of the preform P can be selectively switched. In this case, the staying time of the preform P in the conveyor chamber 4 can be shortened by selecting a transport route having a short route length, or the staying time of the preform P in the conveyor chamber 4 can be shortened by selecting a transport route having a long route length. Can also be lengthened.

The preform P may be composed of polyester other than PET or other resin such as polyethylene (PE) and polypropylene (PP) as long as it is a preform of a container manufactured by blow molding. Further, the shape of the container does not matter as long as it is a container manufactured by blow molding. Therefore, the shape of the container does not have to be the shape of a bottle. For example, it may have a wide mouth shape in which the mouth portion is not narrowed.

The contents filled in the container are not limited to beverages. For example, it may be a seasoning or a non-food liquid. Moreover, the contents are not limited to liquids. For example, it may be a solid such as a powdered seasoning or a confectionery, or a gel having intermediate properties between a liquid and a solid.

Specific values of first temperature, second temperature, relative humidity and dwell time in the above description are examples. The values of the first temperature, the second temperature, the relative humidity and the staying time of the present invention depend on various factors such as the resin constituting the preform P, the shape of the container, the climate of the area where the container manufacturing equipment is located, and the like. It is determined within the range that satisfies the conditions.

The container manufacturing facility 1 and the container manufacturing method according to the present invention are particularly effective when applied when the existing hot pack filling type beverage manufacturing factory is remodeled into an aseptic filling type beverage manufacturing factory. According to the container manufacturing equipment 1 and the container manufacturing method according to the present invention, the preform P is adjusted to a predetermined first temperature by using the conveyor chamber 4 in which the conveyor C is installed under the restrictions of the layout. Therefore, it is not necessary to age the preform P in the storage chamber 2 for at least 24 hours as in the conventional case.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the claims, the specification and the technical ideas described in the drawings. It is possible.

1: Container manufacturing equipment 2: Storage room 3: Supply room 4: Conveyor room 5: Molding machine room 6: Filling machine room 10: Fan coil unit 11: Thermometer 12: Control unit 20: Air handling unit 21: Suction pipe 22 : Air supply piping 23: Control unit 24: Damper 25: Damper C: Conveyor conveyor P: Preform V: Conveyor cover

Claims (14)

A molding machine equipped with a conveyor chamber in which a conveyor for transporting resin preforms is installed and a blow molding machine in which the preforms conveyed by the conveyor are blow-molded to produce a resin container. The chambers are container manufacturing facilities provided in this order.
A conveyor cover that covers the conveyor in the conveyor chamber and partitions the conveyor space for the preform.
The temperature in the storage chamber where the temperature in the conveyor chamber is adjusted to a predetermined first temperature throughout the year and the preform is stored before being conveyed by the conveyor, is the temperature difference from the first temperature. A container manufacturing facility equipped with a temperature control mechanism, which is configured to control based on. The temperature adjustment mechanism further the temperature of the storage chamber, from the first temperature, at least the maximum temperature of the storage compartment of the year and the second temperature above minus the absolute value of the temperature difference between the first temperature The first aspect of claim 1, wherein the temperature in the storage chamber is not adjusted in some cases, and the temperature in the storage chamber is adjusted to be equal to or higher than the second temperature when the temperature is lower than the second temperature. Container manufacturing equipment. The container manufacturing equipment according to claim 1 or 2, wherein the temperature control mechanism includes a stay time control mechanism configured to adjust the stay time of the preform in the conveyor chamber. The container manufacturing equipment according to claim 3, wherein the staying time adjusting mechanism is configured to adjust at least one of the transport speed and the transport distance of the preform by the transport conveyor. The container manufacturing equipment according to any one of claims 1 to 4, wherein the temperature control mechanism is further configured to control the temperature in the molding machine chamber to the first temperature throughout the year. The container manufacturing equipment according to claim 5, further comprising a humidity control mechanism configured to control the relative humidity in the molding machine room to a predetermined humidity or lower throughout the year. A supply in which a preform feeder for supplying the preform from the storage chamber to the conveyor is installed between a storage chamber for storing the preform before being conveyed by the conveyor and the conveyor chamber. Room is provided,
The container manufacturing equipment according to any one of claims 1 to 6, wherein the temperature control mechanism is further configured to control the temperature in the supply chamber to the first temperature throughout the year. Container manufacturing including a transport step in which a resin preform is transported by a transport conveyor and a blow molding step in which the preform conveyed by the transport step is blow-molded to produce a resin container in this order. It ’s a method,
In the transfer step, the temperature in the conveyor chamber in which the transfer conveyor is installed is adjusted to a predetermined first temperature throughout the year, and the preform before transfer by the transfer step is stored in the storage chamber. A container manufacturing method in which a temperature control step of adjusting the temperature at which the preform is stored based on a temperature difference from the first temperature is performed in the storage step. Said temperature regulating step further, the temperature for storing the preforms in said storage step, from the first temperature, minus the absolute value of the temperature difference between the maximum temperature and the first temperature of the year at least in said storage step The second temperature or higher, the temperature is not adjusted in the storage step, and when the temperature is lower than the second temperature, the temperature is adjusted to the second temperature or higher in the storage step. Container manufacturing method. The container manufacturing method according to claim 8 or 9, wherein the temperature control step includes a stay time adjusting step for adjusting the staying time of the preform in the conveyor chamber. The container manufacturing method according to claim 10, wherein the staying time adjusting step adjusts at least one of the transport speed and the transport distance of the preform by the transport step. The container manufacturing method according to any one of claims 8 to 11, wherein the temperature control step further adjusts the temperature in the blow molding step to the first temperature throughout the year. The container manufacturing method according to claim 12, further comprising a humidity control step for adjusting the relative humidity in the blow molding step to a predetermined humidity or less throughout the year. A supply step for supplying the preform from the storage step to the transport step is provided between the storage step for storing the preform before being transported by the transport step and the transport step.
The container manufacturing method according to any one of claims 8 to 13, wherein the temperature control step further adjusts the temperature in the supply step to the first temperature throughout the year.

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