JP2007098792A - Plastic bottle carrying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent bottles from being deformed by colliding with each other when the bottles immediately after being molded are delivered to an air carrying path. <P>SOLUTION: In a system for carrying out the bottles from a blow-molding machine 1, the bottles 10 which have been taken out of molding dies 2 by a rotating type bottle take-out machine 1 are fed to the neck type air carrying path 17 through a star wheel 18. At a recessed place 27 of the star wheel 18, an indent 50 is formed on the advancing side of a surface 29 which regulates the depth of the recessed place 27. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a plastic bottle transport device, and more particularly, to a technology for transporting a bottle immediately after molding in an in-line bottle molding and filling system that molds the bottle in the same facility that fills the plastic bottle with contents.

  It is common to use PET bottles, which are lightweight bottles, to provide the market with contents such as mineral water and beverages such as tea. This PET bottle tends to be thinned by reducing the plastic material per bottle when it is produced, and a 1.5 liter bottle or a 2 liter bottle can be made from a plastic material of 50 g or less, for example, 40 to 50 g. It is being considered.

  By the way, a supplier who fills a PET bottle with a content such as a beverage usually receives supply of a molded bottle from a bottle molding company, but Patent Documents 1 and 2 are the same as filling a PET bottle with the content. Proposes to form bottles in the facility.

  Patent Document 1 discloses an in-line bottle molding and filling system in which bottles are blow-formed one after another from a preform which is a preform of a bottle, and then supplied to a filling device to fill a beverage. Patent Document 2 discloses an in-line bottle molding and filling system that further includes a preform molding process for producing a preform from a resin material by injection molding.

In this way, according to the inline bottle molding and filling system that molds plastic bottles and fills the contents in the same facility, the logistics cost of transporting empty bottles manufactured by bottle molding companies to the contents filling factory is greatly increased. There is an economic advantage that can be reduced.
JP-A-11-198916 JP-A-11-291331

  In addition to the in-line bottle molding and filling system, in the conventional system in which an empty bottle is supplied from a bottle molding company and filled with the contents, the plastic bottle is generally used as a transport line for plastic bottles that are lightweight bottles. A neck type air conveyance method is adopted in which the bottle mouth flange is conveyed by air while sliding.

  By the way, when the drawing (FIG. 6) attached to Patent Document 1 is viewed, a rotary bottle take-out machine is disposed adjacent to the rotary blow molding machine, and a neck type air conveyance path is provided facing this bottle take-out machine. It is arranged. In other words, the bottle molded by the rotary blow molding machine is taken out of the mold by the rotary bottle take-out machine, and the bottle immediately after molding is transferred to the neck type air conveyance path by the bottle take-out machine. . According to such a configuration, the bottles immediately after blow molding are successively put into the inlet of the air conveyance path by the rotary take-out machine, and the bottles thrown into the inlet of the air conveyance path are related to the filling of the next contents. It will be conveyed by air until the process.

  Ideally, the air conveyance is started at the same time as the bottle is introduced into the inlet of the air conveyance path. However, since the air conveyance path conveys the bottle by the air flow, the timing for starting the air conveyance is inadequate. In addition to this, since the bottles are inserted into the inlet of the air conveyance path one after another with a short tact, if the bottle stays at the inlet of the air conveyance path for some reason, this stagnation occurs. There is a problem that the next bottle that is thrown into the bottle collides with the bottle that is being placed. Collisions between bottles in the uncooled state immediately after molding may cause deformation of the bottles, but in the case of thin bottles with a reduced amount of plastic material, the bottles will be deformed due to the collision. The potential increases.

  The purpose of the present invention is to reduce the possibility of bottles colliding with each other in the process of transferring the bottle immediately after molding to the air conveyance path in order to transfer the bottle molded by the molding machine to the next process. It is an object of the present invention to provide a plastic bottle conveying device that can perform the above-described process.

  A further object of the present invention is to, in Patent Document 1 and Patent Document 2, in an inline bottle forming and filling system including a bolt forming process, bottles collide with each other in the process of transferring a bottle immediately after forming to an air conveyance path. An object of the present invention is to provide a plastic bottle transport device capable of reducing the possibility of incurring deformation.

The above technical problem is, according to the first aspect of the present invention,
Immediately after molding the plastic bottle, in the plastic bottle transport device that transports the molded plastic bottle to the next process,
A molding machine having a plurality of molds arranged at equal intervals on the circumference, and molding plastic bottles with each mold while rotating in one direction;
A rotary bottle take-out machine having a plurality of hands for taking out plastic bottles molded by the molding machine from each mold while rotating in the opposite direction to the molding machine;
A plurality of recesses for receiving bottles delivered from each hand of the rotary bottle take-out machine while rotating in the opposite direction to the rotary bottle take-out machine are provided at equal intervals in the circumferential direction and guided between adjacent recesses. A rotating star wheel with protrusions,
An inlet for receiving a bottle sent out from each recess by rotating the star wheel; and a neck type air conveying path for engaging the bottle neck and conveying the bottle by an air flow until the next step. Have
On the surface that defines the recess of the star wheel, a depression or an elastic body is provided on the rotational direction advance side of the star wheel,
The inlet of the neck type air conveyance path is disposed at a position where it interferes with the star wheel when viewed in plan so that the bottle sent out from the star wheel can be received from the star wheel. This is achieved by providing a plastic bottle conveying device characterized by the above.

The above technical problem is also according to the second aspect of the present invention.
In the plastic bottle transport device of the inline bottle molding and filling system that molds bottles in the same facility that fills the contents into plastic bottles,
A molding machine having a plurality of molds arranged at equal intervals on the circumference and molding plastic bottles with each mold while rotating in one direction;
A rotary bottle take-out machine having a plurality of hands for taking out plastic bottles molded by the molding machine from each mold while rotating in the opposite direction to the molding machine;
A plurality of recesses for receiving bottles delivered from each hand of the rotary bottle take-out machine while rotating in the opposite direction to the rotary bottle take-out machine are provided at equal intervals in the circumferential direction and are guided between adjacent recesses. A rotating star wheel with protrusions,
An inlet for receiving bottles sent out from the respective recesses by rotation of the star wheel; and a neck-type air conveyance path for engaging the bottle neck and conveying the bottle by air flow until the next step. Have
On the surface that defines the recess of the star wheel, a depression or an elastic body is provided on the rotational direction advance side of the star wheel,
The inlet of the neck type air conveyance path is disposed at a position where it interferes with the star wheel when viewed in plan so that the bottle sent out from the star wheel can be received from the star wheel. This is achieved by providing a plastic bottle conveying device characterized by the above.

  That is, in the present invention, the bottles taken out from the respective molds of the bottle molding machine are not sent directly to the neck-type air conveyance path, but the star wheel is interposed by using the star wheel to adjust the posture of the bottle one after another. The bottle taken out from the bottle molding machine is sent out to the neck type air conveyance path via the star wheel. For this reason, bottles are successively fed into the inlet of the neck type air conveyance path in a state of being separated by an appropriate interval by the star wheel.

  In this way, instead of putting the bottle into the inlet of the neck type air conveyance path that includes the possibility of bottle stagnation, the bottle is inserted into the inlet of the neck type air conveyance path in a state where the distance between the bottles is mechanically defined. Since the bottles do not collide with each other at the inlet of the air conveyance path, or even if the bottles collide with each other, the impact force can be reduced. The deformation of the bottle due to the collision between the bottles at the entrance of the conveyance path can be suppressed. As described above, as the plastic bottle is thinned by reducing the amount of its material as described above, the above problem of deformation becomes more obvious, but the present invention provides a very effective advantage against the deformation of the thin bottle. Can do.

  Further, in the present invention, since the depression or elastic body is provided on the leading side of the surface defining the star wheel recess, the bottle is recessed when the bottle is transferred from the bottle take-out machine to the star wheel recess. The impact that collides with the surface defining the place can be mitigated by the depression or the elastic body, thereby preventing the bottle from being deformed. For PET bottles, a bottle with a circular cross section and a bottle with a rectangular cross section are known. In particular, with respect to a bottle with a rectangular cross section, the rotation direction on the surface defining the deep portion of the recess, in particular, on the leading side of the recess By providing a depression or an elastic body on the advancing side, deformation of the bottle having a rectangular cross section due to interference with the star wheel can be effectively suppressed. The orientation of the bottle, that is, the direction of the bottle can be adjusted.

  In a preferred embodiment of the present invention, there is a guide surface that slides on the side surface of the bottle and guides the bottle at a position facing the recess of the star wheel, and the bottle conveys the air transport path by the guide surface. Guided to the entrance. According to this preferred embodiment, the guide surface facing the recess of the star wheel cooperates with the guide surface and the recess to feed the bottle into the air conveyance path in a state where the direction and posture of the bottle are adjusted. be able to. This effect is particularly remarkable when the bottle body has a rectangular cross section.

  In a preferred embodiment of the present invention, it further includes a guide slit that engages with a neck of the bottle fed from the star wheel and guides the bottle to the inlet of the air conveyance path. The guide slit is preferably continuous with the conveyance path slit for receiving the neck in the air conveyance path when the air conveyance path is a neck type.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a diagram showing an outline of a bottle molding machine incorporated in an in-line bottle molding and filling system that fills a lightweight bottle, that is, a plastic bottle, with a beverage such as mineral water, and equipment associated therewith. In the figure, reference numeral 1 is a rotary blow molding machine. This blow molding machine 1 has a large number of molding dies 2 arranged at equal intervals on a concentric circle, and an arrow centering on a rotary shaft 3. Blow-molding while rotating in the counterclockwise direction indicated by.

  A preform 5 shown in FIG. 2 is supplied to the blow molding machine 1. Referring to FIG. 2, the preform 5 has a screw portion 6 for screwing a lid (not shown) and a flange 7 adjacent to the screw portion 6, leaving a neck 8 directly below the flange 7. The main body portion 9 is blow-molded, whereby the plastic bottle 10 shown in FIG. 3 is obtained. The material of the plastic bottle 10 is typically polyethylene terephthalate (PET). As can be seen from FIG. 3, the cross-sectional shape of the main body portion of the plastic bottle 10 is a substantially rectangular polygon.

  Returning to FIG. 1, the system for supplying the preform 5 to the blow molding machine 1 receives the preform 5 from the preform supply path 11, and supplies the preform 5 to the heating chamber 12. And an endless transporter 14 for receiving the preforms 5 one by one from the preform delivery device 13 and passing through the heating chamber 12. The endless transporter 14 has the heating chamber 12 in a state where the preforms 5 are aligned. Move in the direction of the arrow. The preform 5 is heated to a predetermined temperature as preparation before blow molding while moving in the heating chamber 12.

  The endless transporter 14 delivers the heated preform 5 to a rotary preform mounting machine 15, and the preform mounting machine 15 mounts the received preform 5 on each mold 2 of the blow molding machine 1. Each mold 2 of the blow molding machine 1 receives the preform 5 from the preform mounting machine 15 in a state where the mold is opened left and right in the horizontal direction and then closes the mold and blows while rotating in the direction of the arrow (counterclockwise). Perform molding.

  The system for carrying out the bottle after molding from the blow molding machine 1 has a rotary bottle take-out machine 16 disposed adjacent to the preform mounting machine 15. Each mold 2 of the blow molding machine 1 blow-molds the bottle 10 while making one round, and when the blow molding is finished, the bottle 10 is taken out by the bottle take-out machine 16. The bottle 10 taken out from each mold 2 is supplied to the neck type air conveyance path 17 via the star wheel 18.

  That is, the system that takes out the bottle 10 after molding from the blow molding machine 1 and conveys it to the next process includes the bottle take-out machine 16 that takes out the bottle 10 from each mold 2 of the blow molding machine 1 and the bottle 10 in the next process. In addition to the neck type air conveyance path 17 for conveying the bottle, a star wheel 18 interposed between the bottle take-out machine 16 and the neck type air conveyance path 17 is included. The bottle molding area including the blow molding machine 1, the bottle take-out machine 16, and the star wheel 18 is partitioned from the outside by a partition 100.

  As shown in FIG. 4, the bottle take-out machine 16 has a plurality of hands 20 arranged at equal intervals in the circumferential direction, and each hand 20 has a variable direction and a separation distance from the rotation center 21. The opening / closing and orientation of each hand 20 and the distance from the rotation center 21 are controlled by two cam grooves 22 and 23. The bottle take-out machine 16 approaches the rotating mold 2 of the blow molding machine 1 with the hand 20 opened, and closes the hand 20 before the corresponding mold 2 starts to open the screw portion of the bottle 10. 6, and the bottle 10 is taken out of the mold 2 in synchronization with the mold 2 being completely opened. Then, in a state where the bottle 10 thus taken out is gripped, the bottle 10 is passed around the halfway in the direction of the arrow (clockwise) to the star wheel 18.

  As shown in FIG. 5, the star wheel 18 has a pair of wheels 25 and 26 that are spaced apart from each other in the vertical direction, and the upper and lower wheels 25 and 26 rotate counterclockwise together. The upper wheel 25 and the lower wheel 26 include a plurality of recesses 27 that are spaced apart at equal intervals in the circumferential direction and opened outward in the radial direction. The recesses 27 have a rectangular cross section of the plastic bottle 10. It has a shape corresponding to the shape. That is, the upper wheel 25 and the lower wheel 26 have a plurality of guide protrusions 28 that protrude outward in the radial direction and a peripheral surface 29 that connects the guide protrusions 28 and 28 adjacent to each other. The plurality of guide protrusions 28 are arranged at equal intervals in the circumferential direction, and the interval between the adjacent guide protrusions 28 corresponds to the width dimension of the plastic bottle 10. The peripheral surface 29 connecting the adjacent guide projections 28, 28, that is, the surface defining the deep portion of the recess 27 depends on the number of the recesses 27 of the star wheel 18, but the rotational axis 30 (see FIG. It is preferably a circular arc surface centering on 4) or a curved surface similar thereto.

  In the embodiment, as described above, the blow molding machine 1 rotates counterclockwise, the bottle take-out machine 20 rotates clockwise, and the star wheel 18 rotates counterclockwise. The bottle 10 taken out from the mold 2 is delivered to the recess 27 of the star wheel 18 by the bottle take-out machine 20.

  The star wheel 18 receives the bottles 10 one after another from the bottle take-out machine 20 and delivers the received bottles 10 to the neck type air conveyance path 17.

  Referring to FIGS. 5 and 7, the frame F of the neck type air conveyance path 17 is disposed at a position where it does not interfere with the star wheel 18, and the inlet 17 a of the air conveyance path 17 is extended from the frame F to the star wheel 18 side. Thus, it is arranged close to the star wheel 18 to a position where it interferes with the star wheel 18 when viewed from above. The inlet 17a is arranged so as to be directed substantially in the tangential direction of the peripheral surface 29 of the star wheel 18. As can be seen from FIG. 5, a guide slit 32 and a guide surface 33 are provided between the star wheel 18 and the inlet 17 a of the air conveyance path 17, and the bottle 10 is separated from the star wheel 18 by both 32 and 33. It is guided to the neck type air conveyance path 17.

  The slit 32 is formed by guide plates 34 and 34 facing each other. The bottom surface of the flange 7 of the bottle 10 is in sliding contact with the opposite edges of the left and right guide plates 34, 34. In this state, the neck 89 of the bottle 10 moves along the guide slit 32, whereby the bottle 10 Then, it is guided to the inlet 17 a of the neck type air conveyance path 17.

  The guide surface 33 is configured by a slip-like belt-like member such as a fluorine resin. The guide surface 33 is disposed substantially opposite to the lower wheel 26, and the bottle 10 is slidably contacted with the flat surface of the main body portion 9 a having a rectangular cross section of the bottle 10, so that the bottle 10 is connected to the neck type air conveyance path 17. To the entrance 17a.

  As can be understood from FIG. 6, the neck type air conveyance path 17 fixed to the frame F rising from the floor is constituted by an elongated passage 36 having a quadrangular cross section having four wall surfaces. The elongated passage 36 is divided into an air chamber 38 and a bottle body chamber 39 vertically by a partition plate 37, and a second guide plate 40 that is continuous with the first guide plates 34, 34 described above is formed on the lower surface of the partition plate 37. , 40, and the second guide plates 40, 40 form a conveyance path slit 41. The conveyance path slit 41 is continuous with the guide slit 32 described above, and the bottom surface of the flange 7 of the bottle 10 guided by the guide slit 32 and entering the inlet 17a of the air conveyance path 17 is the second guide plate 40, The neck 8 is received in the conveyance path slit 41 formed by the second guide plates 40 and 40 while being in sliding contact with the edge portion of the 40.

  The neck type air conveyance path 17 is connected to a partition 100 that defines a bottle molding area where the blow molding machine 1 is installed, and the air chamber 38 and the bottle body chamber 39 of the neck type air conveyance path 17 communicate with the bottle molding area. However, of these, the air chamber 38 is further extended in the bottle forming area in a direction approaching the star wheel 18, and the end of the air chamber 38 reaches a position where it interferes with the star wheel 18 when viewed in plan. It extends. On the other hand, the bottle body chamber 39 is not extended from the partition 100 into the bottle forming area so as not to interfere with the star wheel 18, and the end of the bottle body chamber 39 substantially terminates at the partition 100.

  The air chamber 38 is provided with a driving air chamber 43 that surrounds the transport path slit 41, and a plurality of air discharge ports are provided in a pair of left and right side walls 44 that define the driving air chamber 43 at intervals in the longitudinal direction. 45 is formed.

  Air flows into the driving air chamber 43 from the air discharge port 45, and the bottle 10 is transported toward the downstream side of the air transport path 17 by the inflowing air flow. In the bottle main body chamber 39 of the air conveyance path 17, upper and lower guide rods 46 are disposed on both sides of the bottle main body 10 a so as to be separated from each other in the vertical direction. To prevent.

  As a preferred embodiment of the star wheel 18, the circumferential surface 29 that defines the deep portion of each recess 27 may have a recess 50 on the rotational direction advance side. The recess 50 is not limited, but may have a shape that is cut out with a smooth curve along the surface 28a (FIG. 5) on the rotation direction delay side of the guide projection 28.

  In the above embodiment, the bottle 10 formed by each mold 2 of the blow molding machine 1 is taken out by the hand 20 of the rotary bottle take-out machine 16 and then taken into each recess 27 of the star wheel 18. After that, the star wheel 18 regulates the interval between the adjacent bottles 10 and 10 and is sent to the inlet 17a of the neck type air conveyance path 17 so that the bottle 10 entering the inlet 17a of the neck type air conveyance path 17 It is conveyed to the next process by the flow.

  Thus, in the above embodiment, since the star wheel 18 is interposed between the rotary bottle take-out machine 16 and the neck type air conveyance path 17, the direction and posture of the bottle 10 are determined by the star wheel 18. The bottle 10 can be fed into the neck type air conveyance path 17 while mechanically regulating the interval between the adjacent bottles 10 and 10. As a result, it is possible to prevent the bottles 10 that have not been cooled immediately after blow molding from colliding with each other, and in particular, to prevent the bottles 10 from colliding with each other at the inlet 17a of the neck type air conveyance path 17. And the deformation | transformation of the bottle 10 accompanying the bottles 10 colliding can be suppressed.

  The behavior of the bottle 10 from the rotary bottle take-out machine 16 to the neck type air conveyance path 17 will be described with reference to FIGS. The bottle 10 formed by the blow molding machine 1 is taken out from each mold 2 with the mouth including the screw part 6 held by the hand 20 of the rotary take-out machine 16, and the hand 20 rotates clockwise. While adjusting the direction of the bottle 10, the bottle 10 is delivered to the recess 27 of the star wheel 18. As shown in FIG. 7A, the star wheel 18 receives the bottle 10 by the guide protrusion 28 while rotating counterclockwise, and accommodates the bottle 10 in the recess 27 and faces the star wheel 18. The posture and orientation of the bottle 10 are adjusted in cooperation with the surface 33 (FIG. 7B). When the star wheel 18 further rotates counterclockwise, as shown in FIG. 7C, the bottle 10 is mechanically pushed by the guide protrusion 28 on the delay side of the recess 27 that accommodates the bottle 10, while the bottle 10 is mechanically pushed. 10 is delivered to the guide slit 32, and the bottle 10 is guided by the guide slit 32 and the guide surface 33 and supplied to the inlet 17 a of the air conveyance path 17.

  In the process of delivering the bottle 10 from the rotary take-out machine 16 to the star wheel 18, as can be seen from FIG. 7A, when the star wheel 18 receives the bottle 10 from the hand 20 that moves in the clockwise direction, the counterclockwise direction. The bottle 10 is received in the recess 27 while receiving the bottle 10 by the guide protrusion 28 that moves to the corner. At this time, the corner portion of the bottle 10 collides with the surface defining the deep portion of the recess 27, that is, the peripheral surface 29. May be deformed. On the other hand, in the embodiment, since the recess 50 is provided on the advance side of the peripheral surface 29 of the recess 27, the impact of the corner portion of the bottle 10 colliding with the peripheral surface 29 can be reduced. It is possible to suppress the bottle 10 from being deformed. This deformation suppression effect is effective when the bottle 10 is a thin bottle.

  As a modification, instead of providing the recess 50 on the advance side of the peripheral surface 29 that defines the deep portion of the recess 27 of the star wheel 18, a relatively soft elastic body may be provided for the part.

It is a figure which shows the outline | summary of the bottle molding machine contained in an inline bottle molding filling system, and the facilities accompanying this. It is a side view of the preform for shape | molding a PET bottle. It is a side view of the PET bottle shape | molded from the preform of FIG. It is a top view for demonstrating operation | movement of the bottle taking-out machine for taking out a bottle from the blow molding machine which shape | molds a bottle. It is a fragmentary perspective view of the star wheel for receiving a bottle from a bottle taking-out machine, and sending this to the entrance of a neck type air conveyance path. It is a figure for demonstrating the structure of a neck type air conveyance path. It is a figure for demonstrating the behavior of the bottle accompanying the rotation operation | movement of a star wheel.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Blow molding machine 2 Mold 6 Bottle or preform screw part 7 Bottle or preform flange 8 Bottle or preform neck 10 Plastic (PET) bottle 10a Bottle body 16 Bottle take-out machine 17 Neck type air conveyance path 17a Neck 18 Star wheel 20 Bottle unloader hand 27 Recess for receiving star wheel bottle 28 Star wheel guide protrusion 29 Peripheral surface of star wheel recess (surface defining depth)
32 Guide slit 33 Guide surface 50 Recess provided on the leading side of the peripheral surface (surface defining the deep part) of the recess of the star wheel

Claims (5)

Immediately after molding the plastic bottle, in the plastic bottle transport device that transports the molded plastic bottle to the next process,
A molding machine having a plurality of molds arranged at equal intervals on the circumference, and molding plastic bottles with each mold while rotating in one direction;
A rotary bottle take-out machine having a plurality of hands for taking out plastic bottles molded by the molding machine from each mold while rotating in the opposite direction to the molding machine;
A plurality of recesses for receiving bottles delivered from each hand of the rotary bottle take-out machine while rotating in the opposite direction to the rotary bottle take-out machine are provided at equal intervals in the circumferential direction and guided between adjacent recesses. A rotating star wheel with protrusions,
An inlet for receiving a bottle sent out from each recess by rotating the star wheel; and a neck type air conveying path for engaging the bottle neck and conveying the bottle by an air flow until the next step. Have
On the surface defining the recess of the star wheel, a depression or an elastic body is provided on the rotational direction advance side of the star wheel,
The inlet of the neck type air conveyance path is disposed at a position where it interferes with the star wheel when viewed in plan so that the bottle sent out from the star wheel can be received from the star wheel. A plastic bottle conveying device characterized by that. In the plastic bottle transport device of the inline bottle molding and filling system that molds bottles in the same facility that fills the contents into plastic bottles,
A molding machine having a plurality of molds arranged at equal intervals on the circumference, and molding plastic bottles with each mold while rotating in one direction;
A rotary bottle take-out machine having a plurality of hands for taking out plastic bottles molded by the molding machine from each mold while rotating in the opposite direction to the molding machine;
A plurality of recesses for receiving bottles delivered from each hand of the rotary bottle take-out machine while rotating in the opposite direction to the rotary bottle take-out machine are provided at equal intervals in the circumferential direction and guided between adjacent recesses. A rotating star wheel with protrusions,
An inlet for receiving a bottle sent out from each recess by rotating the star wheel; and a neck type air conveying path for engaging the bottle neck and conveying the bottle by an air flow until the next step. Have
On the surface defining the recess of the star wheel, a depression or an elastic body is provided on the rotational direction advance side of the star wheel,
The inlet of the neck type air conveyance path is disposed at a position where it interferes with the star wheel when viewed in plan so that the bottle sent out from the star wheel can be received from the star wheel. A plastic bottle conveying device characterized by that.   A guide surface that guides the bottle in sliding contact with the side surface of the bottle at a position facing the recess of the star wheel, and the bottle is guided to the inlet of the air conveyance path by the guide surface. The plastic bottle transport device according to claim 1 or 2.   The plastic bottle transport device according to claim 3, further comprising a guide slit that engages with a neck of a bottle fed from the star wheel and guides the bottle to an inlet of the air transport path.   The plastic bottle transport device according to any one of claims 1 to 4, wherein the main body of the bottle has a rectangular cross section.

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