JPH041020A - Preparation of handled bottle - Google Patents

Abstract

PURPOSE:To close a mold as it is and to eliminate the necessity limiting a handle body mounting position by arranging a parison between opposed split molds and temporarily fastening and mounting a handle body to one of the matching surfaces of the split molds and closing the molds to perform blow molding. CONSTITUTION:A mold 3 is opened and a parison 1 heated to stretching temp. is fed in. The mounting head 71 advanced into the mold 3 presses a head positioning pin 74 to a positioning hole 33 in the direction of a split mold 31 as shown by an arrow 8 while allows said pin 74 to engage with the positioning hole 33 and the support pin 5 of the split mold 31 advances into the through-hole 12 of a handle body 2 to press a mounting pin 72 into the mounting head 71 and the handle body 2 is inserted in the handle fitting groove 41 of the split mold 31 up to the almost half thereof to be completed in its temporary fastening and mounting. Simultaneously with the contact of the handle body 2 with the bottom part of the handle fitting groove 41, air is removed from a suction hole 6 to fix the handle body 2 to the handle fitting groove 41 under suction. Respective split molds 31, 32 are closed and high pressure air is blown in the parison 1 to perform blow molding to integrate the handle body 2.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for manufacturing a bottle with a handle, and more specifically, a synthetic resin parison is blow-molded and simultaneously integrated with a handle.

(Prior art) Conventionally, in the case of synthetic resin bottles such as polyethylene terephthalate, where it is difficult to integrally mold the handle due to the resin properties, the synthetic resin parison and the handle body are molded separately, and the handle body is A method was proposed in which the synthetic resin parison was inserted into the mold using a handle holder, the synthetic resin parison was transferred into the mold, the mold was closed, and blow molding was performed (Japanese Patent Application Laid-Open No. 1983-1999).
No. 99350).

(Problems to be Solved by the Invention) In the above conventional method, the mold is closed while the handle body is held in the handle holder, so the mounting position of the handle is limited, and multiple bottles with handles are manufactured at the same time. In the molding mold used for molding, when trying to attach multiple handle bodies without colliding with multiple synthetic resin parisons, the number of handle holders increases, and the operation becomes complicated, resulting in a large-scale molding device. was there.

(Means for Solving the Problems) The present invention aims to solve the above problems by using a half-split mold, and the gist thereof is to place a synthetic resin parison together with a handle body into a half-split mold. In the manufacturing method of a bottle with a handle, which is placed and blow-molded and simultaneously integrated with the handle, a parison is placed between the open molds, and the handle is temporarily attached to one of the mating surfaces of the half mold. death,
This method of manufacturing a bottle with a handle is characterized in that the mold is then closed and blow molding is performed.

Hereinafter, the present invention will be explained in detail based on the drawings.

FIG. 1 is a schematic front view showing an example of an apparatus for carrying out the method for manufacturing a bottle with a handle of the present invention (for ease of understanding, the inner surface of the half-split mold 31 on the front side of the page is shown with a solid line). ,
Fig. 2 is a plan view of Fig. 1, Fig. 3 is an enlarged view of a portion of Fig. 1, Fig. 4 is a front view of the handle body, and Fig. 5 is a v-
■It is a sectional view.

In Figs. 1 to 5, 1 is a synthetic resin parison, 2 is a handle body, 3 is a mold, and 31 and 32 are half molds. Reference numerals 41 and 42 indicate handle fitting grooves provided on the mating surfaces of the half-split molds, and as shown in FIG. is dimensioned so that approximately half of the thickness of the handle body 2 fits therein. Further, in this example, as shown in FIGS. 3 and 5, a holding bottle 5 is provided upright in the handle fitting groove 41 of one half-split type, and a penetrating bottle 5 provided in the handle body 2 shown in FIG. It can be inserted into the hole 21. Furthermore, in this example, as shown in FIGS. 3 and 5, a suction hole 6 is provided in the bottom surface of the fitting groove 41, and when the recess 22 of the handle body 2 comes into contact with the suction passage 61, air is removed from the handle body. It is designed to be able to absorb 2.

Further, in FIGS. 1 and 2, reference numeral 7 denotes a mounting device for mounting the handle body 2 on the half mold 31. The mounting device 7 has a mounting rod 71 at its tip, and the mounting head 71 is formed with a mounting pin 72 that can be inserted into and held in the through hole 21 of the handle body 2, as shown in FIG. Further, as shown in FIGS. 1 and 2, the mounting rod 71 enters between the opened molds 3 by the expansion and contraction of the mounting arm 73 and the forward and backward movement of the mounting device 7 itself.

Further, the mounting head 71 is pressed against the half mold 31 as shown by arrow 8 in FIG. 2 by horizontal movement of the mounting arm 73 perpendicular to the direction of expansion and contraction thereof. At this time, the head positioning pin 74 formed on the mounting head 71 engages with the positioning hole 33 of the half mold 31, and is pressed to an accurate position.

As shown in FIG. 5, the mounting pin 72 is capable of retracting into the mounting head 71, and when pressed against the half mold 31, it is pressed by the holding bottle 5 and retreats into the mounting head.

In this example, the mold 3 has two molds, so two mold surfaces 34 are cut into each half of the mold, and a pair of handle fitting grooves 41 and 42 are formed between them. There is.

Further, mounting pins 72 formed on the mounting head 71 are also provided at two locations corresponding to the handle fitting holes 41 and 42.

As shown in FIG. 1.2, the mold 3 is opened, and the parison 1 heated to the stretching temperature is introduced thereinto.

As shown in FIG. 2, one half mold 31 is opened wider than the other to provide a large gap between it and the parison 1.

Then, the mounting head 71 moves forward into this gap. The mounting head 71 holds the mounting pin 72 in alignment with the through hole 21 of the handle body 2 .

As shown in FIG. 4, the handle body 2 has through holes 21 on the upper and lower sides.
A recess 22 recessed inward is formed on the side surface of the grip portion 23. This handle body 2 may be manufactured by injection molding of polypropylene, polyethylene, or polyethylene terephthalate resin, for example.

The handle body 2 has a mounting part 24 that extends forward above and below the grip part 23.
．． 25, and locking protrusions 26, 27 are provided at the tip of this mounting portion.
is formed. At the same time as the synthetic resin parison 1 is blow-molded, the wall portion wraps around the locking protrusions 26 and 27, and the handle body 2 is attached to the bottle.

The mounting head 71 that has entered between the forming molds 3 is pressed in the direction of the half mold 31 as shown by the arrow 8 in FIG. 2 while the head positioning pin 74 is engaged with the positioning hole 33.
As shown in FIG. 5, a half mold 3 is inserted into the through hole 21 of the handle body 2.
The support bottle 5 of 1 enters and presses the mounting pin 72, so that the pressure bottle 72 is retracted into the mounting head 71, and the handle body 2 is inserted into the handle fitting groove 4 of the half mold 31.
1, and is moved to complete the temporary attachment. The mounting head 71 then leaves the mold half 31 and then retreats from the mold 3 and returns to the initial position of the mounting device 7 .

When the handle body 2 comes into contact with the bottom of the handle fitting groove 41, air is removed from the suction hole 6, and the handle body 2 is sucked into the handle fitting groove 41 and firmly fixed. At this time, the two handle bodies 2 can be securely attached at the same time.

In this state, each half mold 31, 32 has a synthetic resin parison 1
The parison 1 and the handle #2 are firmly fixed by the mold. Then, high-pressure air is blown into the parison 1 to perform blow molding and at the same time integrate it with the handle body 2.

After the handle-equipped bottle thus obtained is cooled and solidified, the mold 3 is opened again and the finished bottle is taken out.

In the above description, the support pin 5 and the suction hole 6 are used in combination to prevent the handle body from falling off the mating surface of the half-split mold, but of course, even if each is used alone, the effect of preventing the handle from falling off is produced.

(Effects of the Invention) The present invention provides a method for manufacturing a bottle with a handle in which a synthetic resin parison is placed in a half-split mold together with a handle body, and is blow-molded and simultaneously integrated with the handle body. The method for producing a bottle with a handle is characterized by placing a parison, temporarily attaching a handle to one of the mating surfaces of the half mold, and then closing the mold and blow molding. By transferring and attaching the handle body to the mold, the mold can be closed as is.
It's time to attach the handle! There is no need to limit the number of handles, and even when manufacturing multiple bottles with handles, multiple parisons and multiple handle bodies can be smoothly manufactured by attaching multiple parisons and multiple handle bodies to predetermined positions in one mold without any hindrance and performing blow molding. I can do it.

[Brief explanation of the drawing]

FIG. 1 shows an apparatus for carrying out the method for manufacturing a bottle with a handle according to the present invention! A schematic front view showing an example, Fig. 2 is a plan view of Fig. 1, Fig. 3 is an enlarged view of a portion of Fig. 1, Fig. 4 is a front view of the handle body, and Fig. 5 is a plan view of Fig. 1. It is a v-■ sectional view of. Figure 3

Claims (1)

[Claims] In a method for manufacturing a bottle with a handle, in which a synthetic resin parison is placed in a half-split mold together with a handle body, and the parison is blow-molded and simultaneously integrated with the handle body, the parison is placed between open molds, and the half-split mold A method for manufacturing a bottle with a handle, which comprises temporarily attaching a handle to one of the mating surfaces of the bottle, and then closing a mold and performing blow molding.