JPH08164556A - Blow molding device - Google Patents

Abstract

PURPOSE: To obtain a blow molding device capable of saving space even when an aligning machine which requires a large installation area is equipped, by arranging a preform aligning machine for supplying preforms to a preform supplying section in an aligned arrangement in a loop of an endless conveying section. CONSTITUTION: A preform aligning machine 104 aligns a preform 22 supplied from a preform stacker 100 through a conveyor 102 so as to supply to a preform supplying section 12, and is arranged in a loop of a preform conveying section 20 on a molding machine stage 10. That is, when a placing member 108 is supported on a support 106 on the machine stage 10 in a state to evade the conveying section 20 and the aligning machine 104 is arranged on the member 108, the aligning machine 104 is arranged in the loop of the conveying section 20, particularly at a part surrounded by a preform heating section 14. Thus, by arranging the aligning machine 104 in the loop of the conveying section 20 on the molding machine stage 10, the space in the loop which is not used much is utilized so as to eliminate an area specifically designed for the aligning machine 104, so that space saving is possible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blow molding apparatus, and more particularly to a blow molding apparatus for heating a synthetic resin preform and then blow molding it.

[0002]

2. Description of the Related Art Preforms (parison) made of synthetic resin
As a method of blow molding a container, a method called a cold parison method or a two-stage method is known.

In this cold parison method, a synthetic resin-made bottomed tubular preform is preliminarily formed by injection molding using an injection molding machine in another process, and the preform molded by other processes is blown. It is supplied to the molding machine.

The blow molding machine is provided with a heating section and a blow molding section. After heating the preform to a predetermined blow molding temperature in the heating section, the preform heated in the blow molding section is blown into a predetermined product shape. I am trying to mold it.

As such a blow molding machine, for example, a machine as disclosed in Japanese Patent Laid-Open No. 64-82916 is known.

In this blow molding machine, a heating station is provided in the middle of a transfer device for conveying the preform, and the preform is heated and then supplied to the blow molding machine for blow molding. A conveyor and an aligner are provided on the side.

Then, the conveyor supplies the preforms from the accumulating portion of the preforms to the aligning machine at a position higher than the preform supplying portion of the transfer device by a predetermined amount and is supplied by the conveyor. The preforms are aligned in a desired direction while the disks are rotated by an aligning machine and supplied to the transfer device.

Further, normally, the preforms are supplied from the aligning machine to the transfer device with the mouths of the preforms aligned upward and the bottoms aligned downward.

[0009]

In the conventional cold parison type blow molding, a conveyor and an aligning machine are required to supply a preform previously molded by another to a molding apparatus. When the machine is combined with the conveyor, it is a very large one that requires more than half the installation area of the molding apparatus, and the molding apparatus becomes large, which requires a large installation space.

In particular, if the molding cycle of the molding machine is improved and the production amount is increased to improve the molding capacity of the molding machine, the aligning machine tends to be enlarged in accordance with the molding capacity of the molding machine. Therefore, there is a problem that an even wider installation space is required.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is blow molding capable of realizing space saving even when an aligning machine having a large installation area is provided. To provide a device.

[0012]

In order to achieve the above object, in a blow molding apparatus according to a first aspect of the invention, a blow molding apparatus for heating a synthetic resin preform and then blow molding the preform is provided. Blow-molding the preform supply unit that delivers the preform, the preform heating unit that heats the preform delivered from the preform supply unit to the blow molding temperature, and the preform heated by the preform heating unit in the shape of the product A blow molding section, a product take-out section for taking out blow-molded products, and a loop-shaped endless conveyance section for circulating and conveying the preform to the respective sections, and the preforms are aligned to the preform supply section. A preform aligning machine for feeding is arranged in the loop of the endless conveying section.

A blow molding apparatus according to a second aspect of the present invention is a blow molding apparatus for heating a synthetic resin preform and then blow molding the preform, and a preform feeding section for delivering a preform and a delivery from the preform feeding section. The preform heating part that heats the formed preform to the blow molding temperature, the blow molding part that blow molds the preform heated by the preform heating part into the shape of the product, and the product unloading part that takes out the blow molded product And a preform aligning machine for feeding the preforms to the respective parts in a circulating state, and a preform aligning machine for feeding the preforms to the preform supplying part in an aligned state. It is characterized by being installed in.

A blow molding apparatus according to a third aspect of the present invention is the first aspect.
Alternatively, in addition to the state of the second invention, the preform aligning machine has a supply rail for supplying the preform to the preform supply section in an upright state, and the preform supply section inverts the upright preform. It is characterized in that it has a reversing mechanism for supplying the preforms to the preform conveying section in an inverted state, and the preform conveying section has a supporting member for supporting the preform in the inverted state.

A blow molding apparatus according to a fourth aspect of the present invention is the first aspect.
Alternatively, in addition to the state of the second invention, a preform stacker for accommodating the preforms is installed on a side portion of the molding machine table, and the preforms are supplied from the preform stacker to the preform aligning machine by the conveying means. I am trying.

The blow molding apparatus according to the fifth aspect of the present invention is the first aspect.
In addition to the state of the invention, the preform supply section is characterized in that it is arranged in a loop of the endless conveyance section.

[0017]

In the first aspect of the present invention having the above-mentioned structure, the preform is circulated and conveyed from the preform supply section to the preform heating section, the blow molding section and the product unloading section in the loop of the endless conveying section. By arranging the preform alignment machine, the preform alignment machine can be housed in the loop by effectively utilizing the inside of the loop that has not been used so far, and the preform alignment machine is molded as in the past. It is not necessary to provide a dedicated installation area for the preform aligning machine, as compared with the case where the preforms are arranged on the side of the apparatus, and the installation area can be reduced to save space.

According to the second aspect of the present invention, by installing the preform aligning machine on the molding machine stand, it is possible to save space by eliminating the need for a dedicated installation space for the preform aligning machine.

According to the third aspect of the invention, the preforms can be easily aligned by aligning the preforms in the upright state by the supply rails in the preform aligning machine, and moreover, the reversing mechanism in the preform supplying section. The preform is inverted and inverted by the above, and the preform is conveyed by the support member in the preform conveying section while being inverted, so that the conveying mechanism can be simplified and downsized, thereby further reducing the area. .

According to the fourth aspect of the invention, the preform stacker is installed on the side of the molding machine base, and the preforms are fed to the preform aligning machine by the conveying means from the side of the molding machine base. It suffices to secure only the installation area of the preform stacker as the area, and it is possible to reduce the area compared to the conventional one.

According to the fifth aspect of the invention, by disposing the preform supplying section in the loop of the endless conveying section, the preform supplying section does not project to the outside of the loop,
It can contribute to space saving.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail below with reference to the drawings.

1 to 5 are views showing a blow molding apparatus according to an embodiment of the present invention.

This blow molding device is a cold parison type blow molding device, which heats and blow-molds a preform molded by using another injection molding machine.

Further, in this blow molding apparatus, as shown in FIGS. 1 and 2, a preform stacker 100 and a conveyor 102 as a conveying means are arranged on a side portion of the molding machine base 10, and the molding machine base is provided. Preform alignment machine 10 on top
4, the preform supply unit 12, the preform heating unit 14, the blow molding unit 16, and the product unloading unit 18 are arranged along the preform transport unit 20 which is a loop-shaped endless transport unit. Has become.

The preform stacker 100 is for accommodating a bottomed cylindrical preform 22 that has been previously molded by another, and is arranged side by side with the molding machine base 10 in a side position. ing.

The conveyor 102 takes out the preforms 22 stored in the preform stacker 100 from the preform stacker 100 by a predetermined amount and supplies the preforms to the preform aligner 104 on the molding machine table 10.
As shown in FIG. 2, the preform stacker 100 and the upper portion of the preform aligning machine 104 are arranged in a steep inclination. Also, this conveyor 102 has
A belt conveyor is used.

The preform aligning machine 104 aligns the preforms 22 supplied from the preform stacker 100 via the conveyor 102 in a desired direction and supplies the preforms to the preform supply unit 12, as shown in FIG. To
It is arranged in the loop of the preform transport unit 20 on the molding machine table 10.

Specifically, the mounting member 108 is supported on the pillar 106 standing upright from the right side in FIGS. 1 and 2 on the molding machine base 10 while avoiding the preform transfer section 20. Then, the preform aligning machine 104 is installed on the mounting member 108, so that the preform transport unit 20
The preform aligning machine 104 is arranged in the loop, particularly in the portion surrounded by the preform heating portion 14. The preform aligner 104 aligns the preforms 22 by rotating the disc.

As described above, by disposing the preform aligning machine 104 in the loop of the preform transporting section 20 on the molding machine table 10, the space in the loop which is not used so much is effectively used and the preform aligning machine is effectively used. It is possible to save space by eliminating the area occupied by 104.

The preform aligning machine 104 aligns the preforms 22 and then supplies the preforms 22 to the preform supplying section 12 by a pair of supply rails 11.
As shown in FIG. 3, by sliding between the pair of supply rails 110, the preform 22 is conveyed and supplied in an upright state with its mouth portion upward and its bottom portion downward. Has become.

In this way, by sliding between the supply rails 110, the neck portion engages with the supply rails 110 and becomes in an upright state by its own weight, so that the preform 22 can be easily taken out. .

The preform supply unit 12 is designed to deliver the preform 22 supplied from the preform arranging machine 104 to the preform transport unit 20.

Specifically, the preform 22 supplied from the preform aligning machine 104 is transferred by the transfer device 112.
Select two pieces at a predetermined pitch, and preform supply section 12
And the two preforms 22 are transported to the preform supply unit 12, and a pair of chuck mechanisms 24 in the preform supply unit 12 hold the neck portion of the preform 22, and as shown in FIG.
By the reversing operation of the chuck mechanism 24, the preform 2
2 is handed over to the preform transport unit 20 in an inverted state with the neck of the unit 2 facing down. The chuck mechanism 24 can be moved up and down, and the preform 22 is delivered to the preform transporting section 20 by the lowering operation.

Further, the preform supply unit 12 is disposed in the loop of the preform transport unit 20, and by preventing the preform feeding unit 12 from projecting outward from the loop, it is possible to further contribute to space saving. It has become.

The preform conveying section 20 circulates and conveys the preform 22 in a loop form from the preform supplying section 12 to the preform heating section 14, the blow molding section 16, and the product unloading section 18. As shown in FIG. As shown, a pair of transport rails 26 are arranged along the transport path. A large number of transport members 28 are engaged with the transport rail 26 at a predetermined pitch.

As shown in FIGS. 4 and 5, the conveying member 28 is composed of a fixed portion 30 and a mounting table 32. The fixed portion 30 engages with the conveying rail 26 via the cam follower 38, and the conveying member 26 is conveyed. The carrier chain 36 is wound around the sprocket 34 and is movable by driving the carrier chain 36.

The mounting table 32 is rotatably attached to the fixed portion 30, and is inserted into the neck portion 40 of the preform 22 on the upper surface thereof so as to support the preform 22 in an inverted state. 42 is projected. By thus conveying the preform 22 in an inverted state, the height of the conveying device can be suppressed to a low level, and the structure can be simplified to contribute to space saving. Further, the mounting table 32 is provided with a sprocket 44 for rotation, and the sprocket 44 for rotation is engaged with the chain 48 wound around the sprocket 46 to drive the preform rotation motor 50.
The mounting table 32 rotates within the range of the preform heating unit 14 to rotate the preform 22.

Here, in the blow molding section 16 described above, two preforms 22 are simultaneously blow-molded, and the preforms 22 are made to correspond to the intervals between the two preforms 22 at the time of blow molding. Reform transport section 2
Even at 0, the distance l ₁ between the two preforms 22 (see FIG.
(See) is set at the same interval as the preform 22 at the time of blow molding.

Also, in the preform supplying section 12, two preforms 22 are supplied to the preform conveying section 20 at the interval l ₁ .

Further, in the preform transfer section 20, the transfer member 28 is intermittently transferred by a constant transfer pitch l ₂ via the transfer sprocket 34 and the transfer chain 36 while keeping the interval l ₁ fixed. There is. This conveyance pitch l ₂ is the same as the preform 2 for the blow molding section 16.
It is set so as to correspond to two supply movement pitches.

By fixing the interval l ₁ between the preforms 22 in the preform transporting section 20 in this manner, a device for changing the interval between the preforms 22 is not required, and the device can be simplified and low. It will not be priced and maintenance will be easy.

The preform heating section 14 is transferred from the preform supply section 12 to the preform transport section 20,
The preform 22 conveyed at a predetermined conveyance pitch l ₂ is heated to the blow molding temperature. In this embodiment, as shown in FIG.
The heating section 52 and the second heating section 54 are divided into two stages. The first heating section 52 uses the preform 22 to raise the temperature to a temperature suitable for blow molding or a temperature slightly lower than it, and the second heating section 54 uses the preform 22. It is used to provide the temperature distribution in the vertical direction. With such a configuration, the energy in the heating step can be used more efficiently.

As shown in FIG. 1, the first heating section 52 is arranged in an L shape from the front part to the right side of the molding machine table 10 so as to ensure a sufficient heating time. In addition, in the first heating unit 52, the preform transport unit 2
At the intermittent stop positions of the preforms 22 corresponding to the transport pitch l _{2 of} 0, the heaters 56 are individually arranged at both sides of the transport path of each of the two preforms 22. Further, as shown in FIGS. 2 and 4, the heater 56 in the first heating section 52 is arranged in a state of extending in the longitudinal direction of the preform 22, and the surroundings thereof are surrounded by a reflection plate 58, whereby The entire heating of the reform 22 in the vertical direction is efficiently performed without waste.

As described above, the spacing l of the preform 22
By fixing ₁ , the gap between the preforms 22 becomes wider, and if a heater that extends in the conveying direction of the preforms 22 is used as in the conventional case, the heater in the empty portion between the preforms 22 is wasted. However, by using the individual heaters 56 that extend in the longitudinal direction of the preform 22 for the first heating unit 52 for raising the temperature, it is possible to arrange the heaters without waste and arrange the heaters 56 at the intermittent stop positions. As a result, the heating time can be shortened, the transportation is not hindered, and the preform 22 can be brought closest to the
The heating efficiency can be improved.

By intermittently conveying two preforms 22 corresponding to the number of preforms 22 to be blow-molded at a time, maintaining an interval l ₁ corresponding to the interval between the preforms during blow molding. The preform 22 suitable for the blow molding cycle can be efficiently heated.

As shown in FIGS. 1 and 3, the second heating section 54 is disposed on the rear side of the molding machine base 10, and the preform 22 is provided on one side of the conveying path in the heating box 60. A plurality of (four) heaters 62a, 62 extending in the transport direction
b, 62c, 62d are arranged in four stages in the vertical direction, and the heating temperature of each of the heaters 62a, 62b, 62c, 62d is adjusted so as to give the temperature distribution in the vertical direction to the preform 22. ing.

The blow molding section 16 blow-molds the preform 22 heated by the preform heating section 14 into a product shape. The blow molding section 16 is composed of a split mold having two molding cavity surfaces. The blow mold clamping device 66 can open and close 64.

The product take-out section 18 takes out the product 68 blow-molded by the blow-molding section 16, and is arranged beside the preform supply section 12 as shown in FIGS. As shown in FIG. 3, the product take-out section 18 is provided with a pair of chuck mechanisms 70 as in the preform supply section 12, and the chuck mechanism 70 conveys the inverted paper through the conveying member 28. Product in state 68
The neck portion 40 of the product 68 is gripped, and by the reversing operation of the chuck mechanism 70, the product 68 is supplied to the takeout conveyor 72 in an upright state with the neck portion 40 of the product 68 facing up.

Next, a blow molding method using the blow molding apparatus according to the above embodiment will be described.

First, the preform 22 is injection-molded by using another injection molding machine, and the preform 22 injection molded in advance is stored in the preform stacker 100.

In this state, when the preform 22 is supplied from the preform stacker 100 to the preform aligning machine 104 via the conveyor 102, the preform aligning machine 1
The preforms 22 aligned by 04 are supplied to the preform supply unit 12 in an upright state.

In this case, the neck portion of the preform 22 is engaged with the supply rail 110, and the preform 22 is supplied in an upright state in which the mouth portion is upward and the bottom portion is downward due to its own weight, and the upright supply is easily performed. Further, the preform aligning machine 104 does not occupy the installation floor surface exclusively, so that the space can be saved.

In the preform supply unit 12, the two preforms 22 are selected by the transfer member 112 at the interval l ₁ corresponding to the interval between the preforms at the time of blow molding, and the chuck mechanism 24 selects the two preforms 22. The neck portion 40 is gripped, and is handed over to the preform transport portion 20 in an inverted state with the neck portion 40 of the preform 22 down by the reversing and descending operation of the chuck mechanism 24 (FIG. 4).
reference).

In the preform conveying section 20, two conveying members 28 arranged at a predetermined interval l ₁ are located at corresponding positions of the preform supplying section 12, and the upper surface of the mounting table 32 of the conveying members 28 is positioned above the mounting table 32. The projecting transport pin 42 is inserted into the neck portion 40 of the preform 22 to support the preform 22 in an inverted state.

Next, after the conveying member 28 supports the preform 22 in an inverted state, when the conveying chain 36 is intermittently rotated by the conveying sprocket 34 for one conveying pitch l ₂ minutes, the conveying member 28 that engages with the conveying chain 36. Is moved by 1 transfer pitch l ₂ and is transferred to the preform heating unit 14. In the preform transport unit 20, the preform 22 is transported in an inverted state, so that the preform 22 can be transported in a low height state, the structure can be simplified, and the apparatus can be made compact.

In the preform heating section 14, the first
The temperature of the preform is raised in the heating section 52, and the temperature of the preform 22 is raised to a temperature suitable for blow molding or a temperature slightly lower than that. Further, in the first heating unit 52, at the intermittent stop position of the preform 22 corresponding to the conveyance pitch l ₂ by the preform conveyance unit 20, the predetermined interval l
_The heaters 56 are individually arranged on both sides of the conveyance path of the two preforms 22 of ₁ , and the heaters 56 are arranged so as to extend in the longitudinal direction of the preforms 22.
Therefore, it is possible to reliably and quickly heat the preform from both sides of the preform over the entire lengthwise direction of the preform at the intermittent conveyance stop position of the preform 22, and to raise the temperature efficiently without waste. Processing can be performed. Furthermore, by intermittently conveying the number of preforms 22 corresponding to the number of blow moldings, it is possible to efficiently heat the preforms 22 suitable for the blow molding cycle. Further, since the distance of the first heating unit 52 is long, a sufficient and reliable temperature raising effect can be obtained.

Thus, by being intermittently transported,
The preform 22 whose temperature is surely raised by the individual heater 56 is supplied to the second heating unit 5 by the preform transport unit 20.
It is transported to 4.

In the second heating section 54, four heaters 62a, 62b, extending in the conveying direction of the preform 22,
By arranging 62c, 62d in four stages in the vertical direction and adjusting the heating temperature of these heaters 62a, 62b, 62c, 62d, the temperature distribution in the vertical direction is surely given to the preform 22. You can

When the preform transport unit 20 transports the preform 22 in the preform heating unit 14,
The sprocket 44 for rotation rotates by the chain 48 wound around the sprocket 46, and the mounting table 32 rotates the preform 22 about its own axis. Therefore, the heating process is surely performed in the circumferential direction at the time of heating.

First heating section 52 of preform heating section 14
The temperature is raised by the second heating unit 54, and the preform conveying unit 20 conveys the preform 22 to the blow molding unit 16 in a state where the temperature distribution in the vertical direction is given to the preform 22 by the second heating unit 54.

In the blow molding section 16, the blow mold 64 is opened by the blow mold clamping device 66, and the preform 22 is supplied to the blow molding section 16 in an inverted state. In this state, the blow mold clamping device 66 clamps the blow mold 64, and blow air is introduced into the preform 22 to blow mold the preform 22 into the shape of the product 68. In this blow molding section 16, two preforms 22 are simultaneously molded.

After completion of the blow molding, the blow mold 64 is opened by the blow mold clamping device 66, and the preform conveying section 20 is opened.
Is intermittently driven to convey the product 68 to the product unloading section 18.

In the product take-out section 18, the neck section 40 of the product 68 in which the chuck mechanism 70 is upside down is gripped, inverted and opened to open the chuck mechanism 70, and the product is supplied to the take-out conveyor 72. This means that the product will be taken out.

The present invention is not limited to the above embodiments, but various modifications can be made within the scope of the gist of the present invention.

For example, in the above-mentioned embodiment, the blow-molding section was used to perform two blow-molding operations at the same time.
Not limited to this example, it is also possible to adopt one that performs blow molding of 1 or 3 or more. In this case, the interval at the time of conveyance may be set corresponding to the interval between the blow mold preforms.

Further, although the conveying sprocket and the conveying chain are used for driving the preform conveying portion and the sprocket and the chain are used for rotating the preform, the present invention is not limited to this example, and a V belt or a chain may be used instead. It is also possible to use a pulley or the like instead of the toothed belt or sprocket.

Further, although the belt conveyor is used as the conveyor, it is not limited to this example, and various kinds of conveyors such as bucket type, screw type and the like can be used.

[0069]

As described above, according to the first aspect of the present invention, the loop-shaped endless conveying section for circulating and conveying the preform from the preform supplying section to the preform heating section, the blow molding section, and the product unloading section is provided. By placing the preform aligning machine in the loop, the preform aligning machine can be housed in the loop by effectively utilizing the loop that has not been used so far. Compared with the case where the machine is arranged on the side of the molding apparatus, there is no need to provide a dedicated installation area for the preform aligning machine, and there is an effect that the installation area can be made small and space can be saved.

According to the second aspect of the present invention, by installing the preform aligning machine on the molding machine stand, there is an effect that the exclusive installation space of the preform aligning machine is unnecessary and the space can be saved. .

According to the third aspect of the invention, the preforms can be easily aligned by arranging the preforms in the upright state by the supply rails in the preform aligning machine.
The preform is inverted and inverted by the inversion mechanism in the preform supply unit, and the preform is conveyed by the support member in the inverted state by the support member in the preform conveyance unit. There is an effect that the area can be increased.

According to the fourth aspect of the present invention, the preform stacker is installed on the side portion of the molding machine table, and the preforms are supplied from the conveying means to the preform aligning machine,
It suffices to secure only the installation area of the preform stacker as an installation area other than the molding machine stand, and there is an effect that the area can be saved as compared with the conventional one.

According to the fifth invention, by disposing the preform supply section in the loop of the endless conveyance section, the preform supply section does not project to the outside of the loop, which contributes to space saving. The effect is that you can.

[0074]

[Brief description of drawings]

FIG. 1 is a plan view showing a blow molding apparatus according to an embodiment of the present invention.

2 is a front view of the blow molding apparatus of FIG. 1. FIG.

FIG. 3 is a side view of the blow molding apparatus shown in FIGS. 1 and 2 as viewed from the blow molding section side.

FIG. 4 is an enlarged cross-sectional view of a heater portion of the first heating section shown in FIGS. 1 and 2.

FIG. 5 is a cross-sectional view showing a structure of a preform transport unit.

[Explanation of symbols]

12 preform supply unit 14 preform heating unit 16 blow molding unit 18 product take-out unit 20 preform transport unit 22 preform 24 chuck mechanism 42 transport pin 52 first heating unit 54 second heating unit 56 heaters 62a, 62b, 62c , 62d Heater 68 Product 100 Preform stacker 102 Conveyor 104 Preform aligner 110 Supply rail l ₁ Conveyance pitch

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Claims (5)

[Claims] 1. A blow molding device for heating a synthetic resin preform and then blow molding the preform, the preform supplying section delivering the preform, and the preform delivered from the preform supplying section up to a blow molding temperature. Preform heating part for heating, blow molding part for blow molding the preform heated by the preform heating part into the shape of the product, product take-out part for taking out the blow-molded product, and circulating the preform to the above parts A blow characterized in that it has a loop-shaped endless conveying section for conveying, and a preform aligning machine for supplying preforms to the preform supplying section in an aligned state is arranged in the loop of the endless conveying section. Molding equipment. 2. A blow molding device for blow molding after heating a synthetic resin preform, wherein a preform supplying section for delivering the preform and a preform transferred from the preform supplying section up to a blow molding temperature. Preform heating part for heating, blow molding part for blow molding the preform heated by the preform heating part into the shape of the product, product take-out part for taking out the blow-molded product, and circulating the preform to the above parts And a preform aligning machine for feeding a preform to the preform supplying section in an aligned state, wherein the preform aligning machine is installed on a molding machine table. Blow molding equipment. 3. The preform aligning machine according to claim 1 or 2, wherein the preform aligning machine has a supply rail for supplying the preforms to the preform supply section in an upright state, and the preform supply section is an upright preform. 1. A blow molding device, comprising: a reversing mechanism for reversing and feeding the preform in an inverted state to the preform transport section, the preform transport section having a support member for supporting the preform in the inverted state. 4. The preform stacker according to claim 1, wherein a preform stacker for accommodating the preforms is installed on a side portion of the molding machine base, and the preforms are supplied from the preform stacker to the preform arranging machine by a conveying means. Blow molding equipment characterized by. 5. The blow molding apparatus according to claim 1, wherein the preform supply unit is arranged in a loop of the endless conveyance unit.