JPS60137714A - Parison conveyance device - Google Patents

Abstract

PURPOSE:To prevent damage to a high barrier film by forming a plastic bottomed parison conveyance device in such a manner as the bottomed parison is hung from a vibratory guide rail sloping downward and slided, then adsorbed and pulled out from the rail to be transferred to a mobile head. CONSTITUTION:A parison 5, with its neck part 5a held upward, is hung from a vibrated guide rail 8 sloping downward and slided toward the downstream. When the parison 5 touches a stopper 11, a sensor 12 is actuated to lower a vacuum adsorptive cup 3a, which adsorbs a parison 5x. Subsequently, when the cup 3a is elevated until the upper face of a mobile head 6 and the undersurface of a support ring 5a are flush with each other, elevation is stopped and the mobile head 6 is closed to hold the parison 5x. Here adsorption is released and the parison 5x is held by the mobile head 6 to be transferred to a neck part holding mold 7. Due to this structure, damage to a high barrier film can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a parinone conveying device, and more particularly to a device for conveying a plastic bottom ring to a mouth and neck holding mold.

Plastic bottles made of plasti or resin-bottomed parinone are used for a variety of purposes. For example, biaxially stretched blow-molded polyethylene terephthalate bottles have excellent container properties such as gas barrier properties, and have recently been used for beer. It is often used as a container for carbonated drinks. However, there is a growing desire to improve the gas barrier properties (especially against carbon dioxide gas) and extend the shelf life, and as a countermeasure, there is a need to provide high barrier properties mainly to the inner and/or outer surfaces of the body wall of bottomed Parinon. It has been proposed to form a coating (eg of polyvinylidene chloride thread).

This coating can be applied, for example, by injecting a barrier paint into the bottomed parison and then draining it, or by immediately coating it, or by applying it to the body wall and bottom of the bottomed parison.
By immersing the paint into the barrier coating layer and then pulling it up, a coating was formed mainly on the inner and outer surfaces of /lIa + walls and bottom parts.
It is formed by drying 1Jξ·1 film.

After heating and drying the f1', E; It is held, heated and shaped by
This conveyance is carried out according to the conventional method, for example, by placing the ξlinon horizontally and transferring it on a conveyor, or by inserting a conveyance lot into the inside with the neck downward. , bottomed, o phosphorus 7/The problem arises that the rupture of the membrane is easily damaged, and the gas barrier properties are therefore likely to be impaired.

This study aims to find a method that is particularly suitable for solving such problems.
(Nara Kui) For the purpose of providing conveyance equipment for bottom parisons -4
“Ru.

1.: :L: l:I In order to achieve the goal, this research is a device for conveying a plastic parison with a bottom, in which a support ring is formed below the mouth and neck, to a mouth and neck holding mold. The device includes a guide rail that suspends the parison by engaging the lower surface of the support ring and has a slight downward inclination toward the downstream, and a vibration device that supports vibration on the guide rail. a guide device, a suction cup device which is arranged to be able to move up and down above the parison transferred and positioned at the downstream end of the guide rail, and which is capable of vacuum suctioning the mouth and neck of the crinone; An openable and closable ae that suspends the parison delivered by the cup device by engaging with the lower surface of the port ring in the closed state.
IJ sonon moving head and the parison moving head,
A parinon conveying device characterized by comprising a moving head device having a drive device that moves back and forth between directly below the vacuum suction cup device located at the top dead center and directly below the mouth and neck holding type. I'll take care of you.

The present light ψA will be explained below with reference to the drawings which are examples.

In FIGS. 1, 2, and 3, the IJ sonon transfer device 1 transfers the transfer guide device 2 and the bottomed parison 5 from the transfer guide device 2 to the rad 6 for movement of the moving head device 4. Vacuum suction cup device 3 and Parinon 5 are used as mouth and neck holding type 7'! A moving head device 4 is provided, which moves at 1: and is held by a holding mold 7.

The bottomed spear non-stick 5 is made of thermoplastic plastic, e.g. evaporated polyethylene terephthalate, and has a mouth and neck part 5J'N with a slightly tapered body wall part 5b and bottom part 5c.
It is equipped with The mouth and neck portion 5a includes a threaded portion 5a and a threaded portion 5.
It has a support ring 5a2 formed below a1. The y-tring 5a2 is attached to the formed bottle (
When the cap is plugged into the threaded portion 5a1 (not shown), it engages with a support (not shown) and the axial load increases to d? This is usually provided to prevent the bottle from being applied to the thin and deformable body and bottom of the bottle.

The conveying device 1 is particularly suitable when a gas barrier coating (not shown) is formed on the inner and/or outer surfaces of the body wall portion 5b and bottom portion 5c of the parison 5 to be fed into the conveying device 1. However, it is not necessarily necessary that the coating described in “2” be formed.

The transfer guide device 2 includes an elongated box-shaped transfer guide 8, the upper surface of which is covered with a Zaport ring 5a2 of Parinon 5.
The parison 5 is engaged with the lower surface of the guide rail 8a, and the parison 5 is suspended from a pair of guide rails 8a. Opposing guide rail 8
In order to ensure smooth transfer, the width of the 13ii portion 8b between a and a is slightly larger than the outer diameter of the upper end 5b of the body wall of the spear (usually about 0.1 to 20 larger). , and is set smaller than the outer diameter of the support ring 5a2.

Furthermore, the thickness of the end surface 8a of the rail 8a is preferably as thin as possible so that even if it comes into contact with the upper end 5b of the trunk wall portion during transportation, it will not have an adverse effect on the outer surface coating. is set at approximately 1 to 10 mm.

The guide rail 8a is sloped so that it becomes lower in the direction in which the parison 5 is transported, that is, toward the downstream. When the guide rail 8a is made of stainless steel such as stainless steel, the slope, that is, the angle θ (Fig. 2) between the upper surface of the guide rail 8a and the horizontal plane, is preferably 3 to 30 degrees, or more. Preferably it is set at 5 to 15 degrees. Transfer guide 8
is attached to the frame 9 via a lifting device 10 (for example, a magnetic gibrator), and as the transfer guide 8 and therefore the guide rail 8a vibrate, the spear sono 5 vibrates and moves downstream. That is, the port ring 5a2 is transferred by sliding on the guide rail 8a in the direction of arrow A. In this case, if the angle θ is smaller than 3 degrees, the above-mentioned transfer will not be carried out smoothly, while if it is larger than 30 degrees, the linon 5 will suddenly slide on the guide rail 8a, and the linon will mutually move. Collision or contact with other objects can easily cause problems such as scratches.

At the downstream end of the guide rail 8a, a stock/mother 11 is installed.
is provided, and it is also detected that the leading sono 5X of the transfer guide 8 (near the downstream end of the 1111 wall portion 8c is located at the position where it is locked by the strike and par 11). A sensor 12 (for example, of a photoelectric type) is provided for this purpose.

The vacuum suction force lug device 3 is used to apply vacuum suction oil to the mouth end 5x of the ml Chrysono 5X.
It is provided with a conduit 3b that connects the solenoid 3a and the stem to the Jji and υ mouse via a valve 3C. Vacuum suction It ノ) Sono 0
; 3a is driven by a drive mechanism (not shown) to
'1 Vertical win passing through the center of the mouth end 5xl of Nonn 5X and 1iiJ! A lower end surface 3al that is movable up and down at Iq11 and at its top dead center (position shown in Fig. 2),
The height between the mouth ends 5 x 1 of the first Reririnon 5X is:
It is configured to be higher than the height of the spear 5 (Figure 2).

The movable head 6 of the movable head device 4 is attached to the tip of the -no'-munogu-14, and the air/ring-
13, it is arranged so as to be able to reciprocate in the underwater direction perpendicular to the transfer guide 8. The movable rod 6 has a pair of head pars 6a, and an arcuate four rfll fi b is formed on the inner surface near the tip of the head nozzle 6a. To move, the sea urchin opens in a wedge shape using the arm nog-14 side as a fulcrum as shown by the solid line in Figure 1 by air drive, and is also moved /'fZ by the dotted line in the same figure. The sodopa 6a is configured to close in parallel. Note that the recess 6b is designed such that the inner diameter of the cylindrical inner surface 6b formed in the closed state is approximately equal to the width of the transfer gap 8b. In the closed state, the upper end gl5b of the body wall of the glossy plate is held on the upper surface of the doper 6a, without contacting the recess (61). This is to allow the parison 5 to be moved and suspended from the ladder 6. In the event that the parison body wall 5b
Even if the concave part 6b comes into contact with the body,
So that the power of the body will not be easily damaged,
-＼Radpar 6a is a relatively low coefficient of friction silastic.
For example, it is preferably made of nylon or fluororesin.

The above-mentioned horizontal reciprocating motion of the movement -\, I'6 is caused by the position P(
3), and the position Q (indicated by the dashed line in FIG. 3) coaxial with and below the holding mold 7 (1-■'rt f'tl) in the closed state position)
It is held between. Note that the drawer is configured to open immediately upon returning to position P.

Further, the moving head 6 is raised via the piston rod 16 by the air/ring 15 at the position l[tQ,
Mouth and neck holding mold 7 in the open state as shown in FIG.
By raising the oral part 5a of the IJ sonon to the level of f, and then closing the holding mold 7, - delivering the Gurinon 5 to the holding mold 7 having a capitivity inner surface corresponding to the oral neck part 5a. It is configured so that it can be done.

The parison 5 is transported by the transport device 1 as follows.

The rinone 5, which is sent from the pre-process of the alignment conveyance device, etc., is supplied to the upstream end C (right end in FIG. 1) of the transfer guide 8 with the mouth and neck part 5a facing up. , the support ring 5a2 is engaged with the guide rail 8a and suspended. Since the guide rail 8a is slightly lower toward the downstream side and is subjected to vibration, the parison 5 gradually slides along the guide rail 8a in the direction of arrow A and is transferred one after another. Sa71,ru. Meanwhile/'P IJ non's body wall part 5b o,]:Hisoko RII! Since the inner and outer surfaces of the transfer guide 8 are substantially in contact with the transfer guide 8, even if a gas barrier nuclear crotch is formed on the inner and outer surfaces, there is a risk that this coating will be false. do not have.

The plurality of parisons 5 transferred in the above manner are
1'1's No + Rinon 5X is locked to the stock horn and -11 and No1. In this state, the subsequent adjacent rings 1 to 5a2 of the IJ sosono are in contact with each other. When the sensor 12 detects the leading ・P resonator 5
), based on the (r+bow) of the position sensor (not shown) that is emitted when it is wet, the vacuum suction force horn 3a descends one step, contacts the eye end 5xl of the leading ・P resonator 5X, and ・spear. Vacuum adsorption of Sono 5X.

At this time, the moving rod 6 is open, so there is no risk of injury due to the above-mentioned lowering being obstructed. Immediate vacuum suction force, n''3a
is raised and stopped when the downward direction of the support ring 5a2 reaches the level of the upper surface of the moving head 1-6, and at the same time a signal is emitted from a position sensor (not shown). Based on this signal, the Rad 6 closes to move, ・e IJ Sosono x
Preparations are being made for hanging. Based on the signal emitted at this time, the vacuum pulp 3c is closed, all suction A is released, and after the Parison 5X is suspended, the vacuum suction force horn 3a rises to the top dead center.

Guide rail 8a” 1st end of 5X opening l51
(15 Since it is set slightly larger than
- There is virtually no possibility that 166 will come into contact with the body wall portion 5b of the 9-linon 5X during movement.

Immediately after the vacuum suction is released, the armper 14 moves forward until the IJ sensor X engaged with the moving head 6 reaches position Q, and then stops. At this point, the mouth and neck holding mold 7 is open (see FIG. 1). Move to □Move, Dro is
Based on a signal emitted by a position sensor (not shown) that detects that the position Q has been reached, the parison head is moved upward until the mouth and neck part 5a of the parsono reaches the level of the inner surface of the cavity corresponding to the holding mold 70. , the position emitted at this point is n-! The holding mold 7 closes in response to a signal 7- (not shown) and holds the variable sonor 5X. Based on a signal emitted by a heater (not shown) that detects this holding, the moving head 6 becomes open, and at the same time
After descending to position Q, the gear 14 returns to position P, and the ladder 6 is opened to prepare for the next delivery of the 4-lison 5.

The present invention is not limited to the above embodiments,
For example, the opening and neck portion of the phantom parison may have a protrusion in place of the threaded portion with a groove-like convex portion for tightening the metal thread 7. Furthermore, even if the moving head is configured to reciprocate in the circumferential direction on a horizontal surface, it is not possible. As the driving device for the ox/C arm bar, an appropriate means such as the electric motor 9 may be employed.

＼The conveyance device of the investigation supports the bottomed parinon on the support ring and conveys it in a suspended state, so...
Even if a gas barrier grade film is formed on the inner and/or outer surface of the body wall and bottom of 1" linon, this film may be scratched and the gas barrier properties of the product bottle may be affected. This has the effect that there is no risk of being exposed.

[Brief explanation of drawings]

Fig. 1 is a plan view of a transport device fat that is an embodiment of the present invention, with the vacuum suction force sono device removed; Fig. 2; 1 is a front view taken from the line ■-■ in Fig. 1; 1 is a side view taken along the line ■-■ in FIG. 1. 1...Parinon conveyance device, 2...Transfer guide device,
3...Vacuum suction cup device, 4...Moving head device 4.5...Bottomed hook, 5a...Mouth and neck, 5a
Double ridge Zaport ring, 6... Moving head, 7... Mouth and neck holding type, 8a... Guide rail, 10... Vibration device, 13° 15... Air cylinder (drive device). No. 1 Figure Soil■

Claims (1)

[Claims] (1) A device for transporting a plastic bottomed ring with a support ring formed below the mouth and neck using a mouth and neck holding type ox, which device engages with the lower surface of the support ring and carries the plastic ring.・A transfer guide device comprising a guide rail on which an O-ring is suspended and has a slight downward slope toward the downstream, and a vibration device that vibrates the guide rail; A vacuum suction force device is disposed vertically movable above the holder and is capable of vacuum suctioning the mouth and neck of the person, and is delivered to the vacuum suction cup device. /H to the opening/closable parinnon movement that engages with the lower surface of the IJ song in the closed state, and moves the parinon moving head to the part located at the top dead center. Go back and forth between directly under the vacuum suction power horn device and directly under the mouth and neck holding type! 117I to avoid movement with a drive device. A non-spear conveying device that is characterized by being equipped with a loading device.