JP3221505U - PET container manufacturing equipment - Google Patents

Abstract

The present invention provides a PET container manufacturing apparatus capable of manufacturing a food container excellent in heat resistance using inexpensive A-PET without using expensive C-PET. A mold unit 12 having a mold for molding the conveyed A-PET sheet 11 into a three-dimensional container, and heating the A-PET sheet 11 through the mold unit 12 at the time of molding The heating unit 13 for crystallizing and molding the PET sheet 11 and the vacuum supply unit 14 for supplying a vacuum between the inner side surface of the mold unit 12 and the A-PET sheet 11 at the time of molding are provided. [Selected figure] Figure 1

Description

  The present invention relates to a PET container manufacturing apparatus for manufacturing a PET container, and more particularly to a PET container manufacturing apparatus for manufacturing a PET container for storing and cooking food.

  Due to the declining birthrate and aging population, the increase in single-person households, and the progress of becoming a single-eating, etc., a food culture has been developed that warms and eats only the amount you like when you like. As a result, many retort food products that can be easily thawed and heated to meet customer needs have been developed. In addition, many food containers made of heat-resistant plastic corresponding to heating cookers such as microwave ovens and microwave ovens for putting necessary ingredients and for putting set seasonings are also in the market. A food container when heating retort food is required to have a heat-resistant temperature of 220 ° C. In general, plastic plastics have a low heat resistance temperature.

  Material sheets mainly made of PET (Poly Ethylene Terephthalate: polyethylene terephthalate) are used for heat-molded food containers, but two types of PET are mainly used: A-PET (amorphous polyethylene terephthalate) and It is roughly divided into C-PET (crystalline polyethylene terephthalate).

  A-PET sheet is a plastic sheet with high transparency, and can be molded into a transparent and glossy container like glass by heat molding. Moreover, since it does not contain a stabilizer and a plasticizer, it is used also for many food containers. Since the heat resistance of A-PET is around 60 ° C., it is not suitable for thawing and heating using a heating cooker. There is a technique of heating and crystallizing A-PET in order to improve heat resistance (see Patent Documents 1 to 4).

  The C-PET sheet is a plastic sheet that can tolerate temperatures up to 220 ° C by blending calcium carbonate, polyolefin, etc. and crystallizing the PET material, and is suitable for thawing and heating using a heating cooker, A browning using a steam oven is also possible. Therefore, C-PET can thaw and heat retort food by the top seal.

Patent No. 5586527 gazette Patent No. 5166114 gazette Patent No. 5070192 Patent No. 5021586 gazette

  It is appropriate to use C-PET because heat resistance is required for food containers, but C-PET, which has more heat resistance than A-PET, is a crystallized material of PET material. The material cost of C-PET is higher than that of PET.

  Then, the subject of this invention is for solving the said conventional problem, Comprising: It does not use expensive C-PET, but manufactures the food container excellent in heat resistance using cheap A-PET. It is an object of the present invention to provide a PET container manufacturing apparatus that can

  In order to solve the above problems, according to the invention of claim 1, a mold portion having a mold for molding the conveyed A-PET sheet into a three-dimensional container, and the A-PET sheet at the time of molding A heating unit which heats the A-PET sheet through the mold to crystallize and mold the A-PET sheet, and a vacuum supply unit which supplies a vacuum between the inner surface of the mold and the A-PET sheet at the time of molding It is characterized by having.

  Therefore, according to the invention of claim 1, the A-PET sheet is heated and crystallized through molding by the heating unit during molding, and is molded by the molding unit, and the vacuum supply unit Thus, by supplying a vacuum between the inner surface of the mold and the A-PET sheet, inexpensive A-PET can be used to produce a food container with excellent heat resistance.

  In the invention according to claim 2, the mold part comprises a convex mold part and a concave mold part disposed in a state of being engaged with the convex mold part at the time of molding the A-PET sheet. The vacuum supply part is disposed in the convex mold part and the concave mold part, and a vacuum is supplied at the time of molding to supply the vacuum A to the mold inner surface part of both the convex mold part and the concave mold part. The apparatus is characterized in that the PET sheet is in close contact and the heating section is provided on the convex mold section.

  Therefore, according to the second aspect of the present invention, the convex mold portion and the concave mold are supplied with a vacuum at the time of molding by the vacuum mold portion disposed in the convex mold portion and the concave mold portion. The A-PET sheet is brought into close contact with the inner surface of the mold of both parts of the part, and the A-PET sheet is crystallized by heating the A-PET sheet by the heating part provided in the convex mold part. It can be done.

  In the invention according to claim 3, pressurized air for supplying pressurized air for pressing the A-PET sheet to the mold inner side surface portions of the convex mold portion and the concave mold portion at the time of molding. The apparatus further comprises a supply unit.

  Therefore, in the invention according to claim 3, the pressurized air supply unit supplies pressurized air to press the A-PET sheet against the inner surface of the concave mold at the time of molding. Thus, the inner side surface of the mold can be crimped.

  In the invention according to claim 4, in the vacuum supply unit, the convex mold portion ascends to the conveyance surface of the A-PET sheet at the time of molding, and the convex mold inner side surface portion is an A-PET sheet As the concave mold portion descends to the conveyance surface of the A-PET sheet and the concave mold inner side surface abuts against the A-PET sheet, the vacuum is supplied when the concave mold portion is lowered to the conveyance surface of the A-PET sheet It is characterized in that it is configured.

  Therefore, in the invention according to claim 4, the convex mold portion ascends to the conveyance surface of the A-PET sheet at the time of molding by the vacuum supply portion, and the convex mold inner side surface portion is the A-PET sheet Supply vacuum when the concave mold portion descends to the conveying surface of the A-PET sheet and the inner surface of the concave mold abuts against the A-PET sheet. Thus, the A-PET sheet can be brought into close contact with the convex mold inner side surface to be crystallized, and the crystallized convex container in the process of molding can be adsorbed to the concave mold inner side surface.

The invention according to claim 5 is characterized by further comprising a preheating unit for preheating the A-PET sheet before molding by the mold unit.
Therefore, according to the invention of claim 5, crystallization of the A-PET sheet at the time of molding is achieved by preheating the A-PET sheet before the molding by the mold portion by the preheating unit. It can be done efficiently.

  According to the invention of claim 6, the vacuum supply unit and the pressurized air supply unit supply vacuum and pressurized air through the supply holes provided in the convex mold unit and the concave mold unit. It features.

  Therefore, according to the invention of claim 6, the vacuum supply unit and the pressurized air supply unit supply vacuum and pressurized air through the supply holes provided in the convex mold portion and the concave mold portion. By doing this, the A-PET sheet can be crimped to the mold inner side surface of the convex mold part and the mold inner side surface of the concave mold part.

  In the PET container manufacturing apparatus according to claim 1, a mold portion having a mold for molding the conveyed A-PET sheet into a three-dimensional shape container, and the mold for the A-PET sheet at the time of molding By providing a heating unit for heating and crystallizing and molding the A-PET sheet, and a vacuum supply unit for supplying a vacuum between the inner surface of the mold and the A-PET sheet at the time of molding Since a food container excellent in heat resistance can be manufactured using inexpensive A-PET without using expensive C-PET, thawing / heating using a heating cooker while reducing manufacturing cost It is possible to manufacture PET containers applicable to

  In the PET container manufacturing apparatus according to claim 2, the mold part is a convex mold part, and a concave mold is disposed in a state of being engaged with the convex mold part at the time of molding the A-PET sheet. The vacuum supply unit is disposed in the convex mold portion and the concave mold portion, and a vacuum is supplied at the time of molding to provide the mold inner surface portion of both the convex mold portion and the concave mold portion. The A-PET sheet can be reliably crystallized by forming the A-PET sheet in intimate contact and providing the heating unit to the convex mold portion, and the appearance can be ensured. It is possible to form a three-dimensional shaped article with good quality.

  In the PET container manufacturing apparatus according to claim 3, a pressurized air supply unit for supplying pressurized air to press the A-PET sheet against the inner surface of the mold of the concave mold at the time of molding is further provided. By providing it, it becomes possible to make the mold be more reliably crimped by the inner side surface part of the mold, thereby enabling more complete crystallization.

  In the PET container manufacturing apparatus according to claim 4, in the vacuum supply unit, the convex mold portion ascends to the conveyance surface of the A-PET sheet at the time of molding, and the convex mold inner side surface portion is A-. The vacuum is supplied when contacting the PET sheet and the vacuum is supplied when the concave mold portion descends to the conveying surface of the A-PET sheet and the inner side surface of the concave mold contacts the A-PET sheet Thus, the A-PET sheet can be brought into close contact with the inner surface of the convex mold for crystallization, and the container in the process of forming the crystallized convex can be adsorbed to the inner surface of the concave mold. Since the molding of the container and the crystallization of the A-PET sheet are performed in one action, the working efficiency can be improved.

  In the PET container manufacturing apparatus according to claim 5, crystallization of the A-PET sheet at the time of molding is further provided by further comprising a preheating unit which preheats the A-PET sheet before the molding by the mold portion. Can be performed efficiently, so that an A-PET sheet having high heat resistance performance can be manufactured.

  In the PET container manufacturing apparatus according to claim 6, the vacuum supply unit and the pressurized air supply unit supply vacuum and pressurized air through the supply holes provided in the convex mold unit and the concave mold unit. By doing this, the A-PET sheet can be crimped to the mold inner side surface of the convex mold part and the mold inner side surface of the concave mold part, so that the contour of the container shape can be cleared.

FIG. 1 is a schematic sectional view showing an embodiment of a PET container manufacturing apparatus according to the present invention. FIG. 2 is a perspective view showing an embodiment when the mold inner side surface portion of the convex mold portion of the PET container manufacturing apparatus according to the present invention is viewed obliquely from above. FIG. 3 is a perspective view showing an embodiment of the mold inner side surface portion of the concave mold portion of the PET container manufacturing apparatus according to the present invention as viewed obliquely from above. FIG. 4 is a perspective view showing an embodiment in which the convex mold portion and the concave mold portion of the PET container manufacturing apparatus according to the present invention are engaged.

Hereinafter, a PET container manufacturing apparatus according to the present invention will be described based on an embodiment with reference to the drawings.
First, the configuration of one embodiment will be described. FIGS. 1-4 is a figure for demonstrating the PET container manufacturing apparatus of one Embodiment which concerns on this invention.
The PET container manufacturing apparatus 10 according to this embodiment, as shown in FIG. 1, includes a mold portion 12 having a mold for molding the transported A-PET sheet 11 into a three-dimensional container, and A-PET at the time of molding. A heating unit 13 for heating the sheet 11 through a mold to crystallize and mold the A-PET sheet 11, and a vacuum supply unit for supplying a vacuum between the inner surface of the mold and the A-PET sheet 11 during molding And fourteen.

  Specifically, in the PET container manufacturing apparatus 10, the mold portion 12 is disposed in a state of being engaged with the convex mold portion 15 (primary mold) and the convex mold portion 15 when the A-PET sheet 11 is molded. The vacuum supply unit 14 is disposed on the convex mold portion 15 and the concave mold portion 16 and supplies a vacuum at the time of molding to form the convex mold portion 15. The A-PET sheet 11 is in close contact with the inner surface of both molds of the concave mold part 16 and the concave mold part 16, and a heating part 13 is provided on the convex mold part 15.

  More specifically, the PET container manufacturing apparatus 10 further includes a pressurized air supply unit 17 for supplying pressurized air in order to press the A-PET sheet 11 against the inner surface of the concave mold portion 16 during molding. Prepare.

  More specifically, in the PET container manufacturing apparatus 10, the convex mold portion 15 ascends to the conveying surface 18 of the A-PET sheet 11 at the time of molding, and the convex mold inner side surface portion is A-. The vacuum is supplied when coming into contact with the PET sheet 11 and the concave mold part 16 descends to the conveying surface of the A-PET sheet 11 so that the vacuum is brought into contact with the A-PET sheet 11. It is configured to supply

  More specifically, the PET container manufacturing apparatus 10 further includes a preheating unit 19 that preheats the A-PET sheet 11 before molding by the mold unit 12.

  As a result, in the PET container manufacturing apparatus 10, vacuum and pressurized air are supplied through the supply holes 20 and 21 provided in the convex mold portion 15 and the concave mold portion 16 by the vacuum supply unit 14 and the pressurized air supply unit 17. Supply.

  The PET container manufacturing apparatus 10 manufactures a PET container by molding the A-PET sheet 11 conveyed by the conveyance line (mold pass line) 22 for conveying the A-PET sheet 11 by the mold unit 12.

The PET container manufacturing apparatus 10 heats the convex mold portion 15 by the heating unit 13, and the inner surface portion of the convex mold portion 15, that is, the surface of the convex mold portion 15 and the A-PET sheet 11 by the vacuum supply unit 14. Supply vacuum through the supply holes 20 between
Thereby, the A-PET sheet 11 is adsorbed to the heated convex mold part 15, and crystallization of the A-PET sheet 11 is started.

  Thereafter, the vacuum supply unit 14 supplies a vacuum through the supply hole 21 between the inner surface of the mold of the concave mold portion 16, that is, the inner surface of the concave mold portion 16 and the A-PET sheet 11. As a result, the container in the process of forming a convex shape of the crystallized A-PET sheet 11 adsorbed to the convex mold portion 15 is adsorbed to the inner surface portion of the concave mold portion 16. By being adsorbed, the convex container in the process of being molded is molded in a state of being in close contact with the concave mold portion 16, and as a result, it is molded into a three-dimensional shape.

  The container molded into a three-dimensional shape by the convex mold portion 15 and the concave mold portion 16 is released (knocked out) from the A-PET sheet 11 by a knockout mechanism 23 formed in the concave mold portion 16 and not shown Trimming of the molded container is performed at the container trimming station.

  More specifically, as shown in FIG. 1, the A-PET sheet 11 transported on the transport line 22 is a PET container manufacturing apparatus 10 with a predetermined sheet feed width (sheet feed pitch) X1, X2. Transported to

  The mold part 12 is composed of two mold parts that can be engaged with the convex mold part 15 and the concave mold part 16, and the A-PET sheet 11 from the top and bottom with respect to the transport surface 18 of the A-PET sheet 11. It is configured to sandwich the

  The heating portion 13 for heating the convex mold portion 15 is fixed to the plug fixing disc 24 and is configured to engage with the concave mold portion 16 without displacement of the convex mold portion 15 at the time of molding. Further, the concave mold portion 16 is fixed to the mold fixing plate 25 and is configured to engage with the convex mold portion 15 without displacement of the concave mold portion 16 at the time of molding. Further, a knockout mechanism 23 is disposed in the concave mold portion 16, and after the three-dimensional shape is formed, the knockout mechanism 23 is operated by oil pressure or the like, and the three-dimensional shaped molded product is released.

As shown in FIG. 2, the convex mold part 15 has a bowl-shaped mold shape, is disposed on the heating part 13, and is attachable to and detachable from the heating part 13. The bowl-shaped mold in this case is a mold having a circumferential line 26 formed on the side of the container. By forming the circumferential line 26, it is possible to increase the strength of the container or to make it easy to hold it.
In addition, as shown in FIG. 3, the concave mold portion 16 is formed with a bowl-shaped circular recess 27 of the same type as the convex mold portion 15 so as to engage with the convex mold portion 15 without a gap. The state in which the convex mold part 15 and the concave mold part 16 are engaged is shown in FIG.

  The heating unit 13 heats the A-PET sheet 11 adsorbed to the convex mold unit 15 in order to crystallize it, and is a heater capable of heating to, for example, 150 ° C to 200 ° C.

  The vacuum supply unit 14 is constituted of, for example, a vacuum pump for supplying a vacuum, and in order to cause the A-PET sheet 11 to be adsorbed to the inner surface of the mold portion of the convex mold portion 15, At this time, vacuum is supplied from the supply hole 20 connected to the vacuum supply unit 14 and connected to the pipe 28 disposed at the lower part of the convex mold portion 15. That is, the vacuum supply unit 14 sucks air to cause the A-PET sheet 11 to be adsorbed to the inner surface of the mold of the convex mold portion 15. At this time, a vent 35 is provided between the pipe 28 and the supply hole 20 so that air can be sucked efficiently. The heating unit 13 is heated to a temperature at which the A-PET sheet 11 can be crystallized, for example, 150 ° C. or more before the convex mold portion 15 rises to the transport line 22.

  In addition, the vacuum supply unit 14 is recessed in order to cause the A-PET sheet 11 adsorbed to the convex mold portion 15, that is, the container in the process of forming the crystallized convex to be adsorbed to the inner surface portion of the concave mold portion 16. When the knockout mechanism 23 of the mold portion 16 is lowered to the transfer line 22, vacuum is supplied from the supply hole 21 connected to the vacuum supply portion 14 and connected to the pipe 29 disposed on the upper portion of the concave mold portion 16. Supply. That is, the vacuum supply unit 14 sucks air to cause the A-PET sheet 11 adsorbed to the inner surface of the mold of the convex mold 15 to be adsorbed to the inner surface of the mold of the concave mold 16. At this time, a vent 36 is provided between the pipe 29 and the supply hole 21 so that air can be efficiently sucked.

  In addition, the valve 30 and the valve 31 are disposed in the pipe 28 and the pipe 29, respectively, and the valve 30 is opened when the A-PET sheet 11 is adsorbed to the inner surface of the convex mold portion 15. Close the valve 31. On the other hand, when the A-PET sheet 11 adsorbed to the convex mold portion 15 is adsorbed to the inner surface of the concave mold portion 16, the valve 30 is closed and the valve 31 is opened. As a result, both suctions can be performed with only one vacuum supply unit 14.

  The pressurized air supply unit 17 is, for example, a compressor for injecting compressed air, and in order to make the shape of the container in the middle of molding adsorbed on the inner surface of the concave mold 16 uniform and sharp, the pressurized air The compressed air is injected from the supply hole 20 connected to the pipe 32 connected to the supply unit 17. That is, the container in the process of molding adsorbed to the inner surface of the concave mold portion 16 is pressure-bonded to the inner surface of the concave mold portion 16 by the injected internal pressure, and the container shape is sharpened.

  When there is a circumferential line 26 or a pattern on the side of the container as in the bowl-shaped mold shown in FIGS. 2 and 3, A is supplied by the supply of pressurized air from the pressurized air supply unit 17. -Since the PET sheet 11 is pressure-bonded to the mold inner surface of the concave mold portion 16, the circumferential line 26 or the pattern on the container side can be more clearly raised.

In addition, the valve 33 is arrange | positioned by the piping 32, and when supplying the compressed air, the valve 33 is opened and the valve 30 and the valve 31 are closed. As a result, compressed air can be injected from the supply hole 20 through the pipe 32.
Further, a dryer 34 is connected to the pressurized air supply unit 17. Since the pressurized air supply unit 17 compresses the air together with water vapor, dust, and dust, use of compressed air mixed with impurities such as water causes an operation trouble of the PET container manufacturing apparatus 10 and the like. Therefore, the dryer 34 is connected to remove moisture and the like to prevent operation troubles and the like from occurring.

  The preheating unit 19 is a preliminary heater for the A-PET sheet 11 and heats the A-PET sheet 11 before the A-PET sheet 11 is molded by the mold unit 12. In FIG. 1, one preheating unit 19 is disposed above and below the A-PET sheet 11. Thereby, since both surfaces of A-PET sheet 11 can be heated before shaping | molding, A-PET sheet 11 can be crystallized efficiently.

Next, the operation and effect of the embodiment will be described.
According to the PET container manufacturing apparatus 10 of one embodiment of the present invention, as shown in FIGS. 1 to 4, the apparatus has the above-described configuration, and thus has a mold for molding the conveyed A-PET sheet into a three-dimensional container. A mold portion 12, a heating portion 13 for heating the A-PET sheet 11 through a mold at the time of molding to crystallize the A-PET sheet 11, and molding, a mold inner side surface portion and an A-PET sheet at the time of molding By providing a vacuum supply unit 14 for supplying a vacuum between 11 and 11, it is possible to manufacture a food container excellent in heat resistance using inexpensive A-PET without using expensive C-PET. Therefore, it is possible to manufacture a PET container applicable to thawing and heating using a heating cooker while reducing the manufacturing cost.

  Further, the mold portion 12 is composed of a convex mold portion 15 and a concave mold portion 16 disposed in a state of being engaged with the convex mold portion 15 when the A-PET sheet 11 is molded, and the vacuum supply portion 14 is It is disposed in the convex mold part 15 and the concave mold part 16 and supplies vacuum at the time of molding to bring the A-PET sheet 11 into close contact with the inner surface of both the convex mold part 15 and the concave mold part 16. Since the A-PET sheet 11 can be crystallized by being provided with the heating part 13 in the convex mold part 15 while being configured as described above, it is possible to form a three-dimensional shape with good appearance quality. Can.

Further, by further comprising a pressurized air supply unit 17 for supplying pressurized air in order to press the A-PET sheet 11 into pressure contact with the mold inner surface of the concave mold portion 16 at the time of molding, it is crimped to the mold inner surface. Since the container shape can be uniformly adjusted, variations in the container shape can be suppressed and the appearance quality can be further improved.
In addition, the vacuum supply unit 14 supplies a vacuum when the convex mold portion 15 ascends to the conveyance surface of the A-PET sheet 11 at the time of molding, and the inner surface of the convex mold abuts the A-PET sheet 11 At the same time, the concave mold portion 16 is lowered to the conveying surface of the A-PET sheet 11 so that the vacuum is supplied when the inner surface of the concave mold abuts on the A-PET sheet 11. The A-PET sheet 11 is brought into close contact with the inner surface of the convex mold to be crystallized, and the container in the middle of forming the crystallized convex can be adsorbed to the inner surface of the concave mold, effectively in a short continuous cycle. Since molding of the container and crystallization of the A-PET sheet 11 are performed, the working efficiency can be improved.

  Further, by further providing the preheating unit 19 for preheating the A-PET sheet 11 before the molding by the mold unit 12, the crystallization of the A-PET sheet 11 can be efficiently performed at the time of molding, A-PET sheet 11 with high heat resistance can be manufactured surely.

In addition, the vacuum supply unit 14 and the pressurized air supply unit 17 supply the vacuum and the pressurized air through the supply holes 20 and 21 provided in the convex die unit 15 and the concave die unit 16, respectively. Since the A-PET sheet 11 can be pressure-bonded to the inner surface of the mold portion of the portion 15 and the inner surface of the mold portion of the concave mold portion 16, the container shape can be sharpened.
Although the embodiment of the PET container manufacturing apparatus according to the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this one embodiment, and a design that does not deviate from the scope of the present invention Changes are included in the present invention.

For example, in the embodiment described above, the three-dimensional shape of the mold is a bowl shape, but is not limited to this shape, and may be a cubic shape or a rectangular parallelepiped shape.
Further, in the above-described embodiment, the convex mold portion 15 is attachable to and detachable from the heating portion 13. However, the present invention is not limited to this, and the convex mold portion 15 and the heating portion 13 are integrated. It may be one.

  The PET container manufacturing apparatus according to the present invention has industrial applicability because it can manufacture and use many PET containers.

DESCRIPTION OF SYMBOLS 10 PET container manufacturing apparatus 11 A-PET sheet 12 Mold part 13 Heating part 14 Vacuum supply part 15 Convex mold part 16 Concave mold part 17 Pressurized air supply part 18 Conveying surface 19 Preheating part 20, 21 Supply hole 22 Conveying line 23 Knock-out mechanism 24 Plug fixed board 25 Mold fixed board 26 Circumferential line 27 Circular hollow 28, 29, 32 Piping 30, 31, 33 Valve 34 Dryer 35, 36 Air vent

Claims (6)

A PET container manufacturing apparatus,
A mold unit having a mold for molding the conveyed A-PET sheet into a three-dimensional container;
A heating unit which heats the A-PET sheet through the mold at the time of molding to crystallize and mold the A-PET sheet;
A PET container manufacturing apparatus comprising: a vacuum supply unit for supplying a vacuum between the inner surface of the mold and the A-PET sheet at the time of molding. The mold part comprises a convex mold part and a concave mold part disposed in a state of being engaged with the convex mold part at the time of molding the A-PET sheet,
The vacuum supply part is disposed in the convex mold part and the concave mold part, and a vacuum is supplied at the time of molding to supply the A-PET sheet to the mold inner surface part of both the convex mold part and the concave mold part. The A-PET container manufacturing apparatus according to claim 1, characterized in that the convex mold portion is provided with the heating portion while being in close contact with each other.   The PET container according to claim 2, further comprising a pressurized air supply unit for supplying pressurized air to press the A-PET sheet against the inner surface of the mold of the concave mold portion during molding. apparatus.   The vacuum supply unit supplies a vacuum when the convex mold portion ascends to the conveying surface of the A-PET sheet at the time of molding and the convex mold inner side surface portion abuts on the A-PET sheet. The apparatus is characterized in that the concave mold portion is lowered to the conveying surface of the A-PET sheet, and a vacuum is supplied when the inner surface of the concave mold abuts on the A-PET sheet. The PET container manufacturing apparatus of any one of 2 or 3.   The PET container manufacturing apparatus according to any one of claims 1 to 4, further comprising a preheating unit for preheating the A-PET sheet before molding by the mold unit.   6. The vacuum supply unit and the pressurized air supply unit according to any one of claims 1 to 5, wherein vacuum and pressurized air are supplied through supply holes provided in the convex mold portion and the concave mold portion. PET container manufacturing equipment.