CN1031559C

CN1031559C - Apparatus for forming blown bottle with handle and method of forming same

Info

Publication number: CN1031559C
Application number: CN 88101970
Authority: CN
Inventors: 长谷川秀夫; 高桥利男; 宫川正幸
Original assignee: Mitsubishi Plastics Inc
Current assignee: Mitsubishi Plastics Inc
Priority date: 1988-04-08
Filing date: 1988-04-08
Publication date: 1996-04-17
Anticipated expiration: 2003-04-08
Also published as: CN1036360A

Abstract

When a blowing bottle with a handle is manufactured as a whole molded article, a thermoplastic blank and the handle are clamped on a correct positional in advance by a respective clamping device and are simultaneously sent into a blowing mold for blow molding.

Description

Make the device of the blown bottle of band handle

The present invention relates to make a kind of device of the thermoplastic bottle of being with handle.

Knowing, is difficult by the thermoplastic bottle of the blowing mould of the single parison of PET resin material being made a band handle.

In a publication, for example in the Japanese unexamined patent that is numbered 99350/1983 was open, the mode that suggestion adopts parison and handle to form was respectively made the blown bottle of band handle; At first handle is placed in the handle anchor clamps, the handle anchor clamps then are placed on the precalculated position in the blowing mould: then parison is put in the blowing mould; Then carry out blowing mould.

In traditional manufacture method,, thereby need an attaching device and come the moving handle anchor clamps because handle is to be fixed on the precalculated position by the handle anchor clamps that separate with parison.In addition, when handle was fixed the mobile parison in back, the position relation between handle and the parison was easy to take place mistake.As a result, the position that is fixed on the blown bottle of handle will misplace.

A kind of device and a kind of method that the purpose of this invention is to provide the blown bottle of making the band handle, in this blown bottle, handle and parison have correct position relation.

One aspect of the present invention, provide a kind of method of making the blown bottle of band handle, this method is blown into compression fluid in handle is placed on blowing mould, is heated in the thermoplastic parison that is suitable for molding temperature, thereby form Unitarily molded product, this method is characterised in that, parison and handle are clamped in advance with correct position relation, and they are moved into blowing mould simultaneously and stand blow-molded.

Another aspect of the present invention provides a kind of device of making the blown bottle of band handle, and this device comprises:

The transfer member that one ring changes;

One is installed on the transfer member, makes parison keep the first vertical anchor clamps,

One is installed on the transfer member, clamps one handle, makes handle with respect to second anchor clamps of parison on the precalculated position,

The heater block of one heating parison,

One is received in the parison on first and second anchor clamps and the blowing mould of handle,

One air blowing parts, in the time of in parison is positioned at blowing mould, it offers parison with air under pressure.

In the accompanying drawings:

Fig. 1 is the blown bottle that is used for making the band handle, with the plane of an embodiment of the device of realizing method of the present invention, wherein shown parison anchor clamps and one handle anchor clamps in detail;

Fig. 2 is the front view of anchor clamps shown in Figure 1;

Fig. 3 is the longitudinal section of blowing mould;

Fig. 4 is the sectional elevation along the A-A ' line among Fig. 3;

Fig. 5 is the stereogram of an embodiment that utilizes the blown bottle of the band handle that method of the present invention obtains;

Fig. 6 is the schematic diagram according to another embodiment of the device of blown bottle of the present invention, as to be used for making the band handle;

Fig. 7 is the cutaway view along the B-B ' line among Fig. 6.

Below in conjunction with accompanying drawing the embodiment that the present invention recommends is described.

In the present invention, use the parison of the band bottom of tubular.This parison or by the synthetic resin injection moulding of PET resin and so on, or after an end of tube-shaped product is closed, be extruded moulding.

Handle can be by polypropylene, the synthetic resin injection moulding of polyethylene and so on.

In the present invention, parison and handle are sandwiched on the correct position.For this reason, the anchor clamps of clamping the anchor clamps of parison and clamping handle are fixed on the precalculated position of same transfer member, and they are synchronously moved in the blowing mould, and this moment, they clamped parison and handle respectively.The parison anchor clamps can have a rotatable axle, and the handle anchor clamps can be in non-rotary state, like this, rotate when having only parison to be heated on making temperature and before being moved into blowing mould.

In addition, parison and handle are injected into type by using shaping mould, the die cavity of a system parison and the die cavity of a system handle are arranged in this shaping mould, they keep correct position relation by blowing the time with box lunch, secondly, when parison and handle immigration blowing mould, the mouth of parison and the cast gate of handle can be maintained on the preposition.

Under above-mentioned situation, parison and handle are side by side placed in the blowing mould, and in blowing mould, handle is positioned in the groove on the blowing mould inwall.Then, compression fluid offers parison in common mode, can obtain the blown bottle that handle is fixed on the band handle on the tram like this.

Fig. 1 is a manufacturing method according to the invention, makes an a kind of example of device of the blown bottle with handle.

In Fig. 1, the transfer member that label 5 representative rings change.First anchor clamps 1 that have a rotatable axle 11 are installed on the outer rim of transfer member 5.Axle 11 is used for supporting parison 3, and the neck that is directed downwards is arranged on the parison 3.Being used for second anchor clamps 2 of carrying-handle 4 also is installed on the outer rim of transfer member 5 in non-rotary mode.First anchor clamps 1 and second anchor clamps 2 have the preposition relation between mutually on transfer member 5.The mat woven of fine bamboo strips one anchor clamps 1 and second anchor clamps 2 change, also are in circularly heated condition and blowing state with the transfer member ring.Label 6 expression heaters.

In this embodiment, parison and handle are made stage by stage, and parison 3 places on the axle 11 with upside down, and promptly the neck of parison is directed downwards.Then, transfer member 5 rings change, and the parison anchor clamps 1 of banding pattern base 3 are shifted to heating location, and parison 3 is heated to the manufacturing temperature by heater 6 there, and axle 11 is in rotation.Then, handle 4 is fixed on the precalculated position of the nail 21 on the handle anchor clamps 2.Then, parison anchor clamps 1 and handle anchor clamps 2 are moved into 8 li of blowing moulds together.

Referring to Fig. 3 and Fig. 4, blowing mould 8 comprises a pair of semicircle mould 81 and 82.Parison 3 and handle 4 are moved into

semicircle mould

81 and 82 simultaneously when

semicircle mould

81 and 82 is in open mode, when type bad 3 and handle 4 are maintained on the

preposition.Semicircle mould

81 and 82 closes up.Then, compression fluid is transfused to parison shown in arrow among the figure makes parison 3 expansions, thereby has and the corresponding shape of the shape of blowing mould 8.Simultaneously, handle 4 is attached on the trunk of blown article.Like this, formation blown bottle as shown in Figure 5.

In the foregoing description, handle and parison are prepared respectively, and are separately fixed on each anchor clamps, and still, they are sent in the blowing mould simultaneously together with anchor clamps, and these anchor clamps are fixed on the transfer member 5 with the preposition relation.

Fig. 6 and Fig. 7 have shown another embodiment according to the method and apparatus of blown bottle of the present invention, as to be used for making the band handle.In this embodiment, form the injection moulding operation of parison and handle and blow-molded the operating in the on-line system of formation blown bottle and carry out continuously.

Injection moulding and blow-molded device that label 10 expression one is online, it comprises that 106, blow-molded 107 of an injection moulding platform 101, one parison warm tables and a blown article remove platform 108, they are round the rounded layout of transfer member.101 li of injection moulding platforms, first injection mould 103 of a system handle and second injection mould 102 of system parison 3 are installed, the mat woven of fine bamboo strips two injection moulds 102 are positioned at the both sides of first injection mould 103, can obtain the part of using for blown bottle like this.The die cavity that is formed at the system handle of 103 li of first injection moulds is to determine that like this it can make handle be fixed on the precalculated position of blown article.For this reason, the length of the cast gate 109 of system handle will suitably be determined.In these cases, utilize injection (mo(u)lding) machine 13, parison is made in injection moulding and handle is carried out at the same time or separately.Then, open each injection mould.At this moment, the cast gate 109 of the mouth of each parison 3 and each handle 4 is clamped respectively by clamping plate 105, clamping plate 105 are parts of

injection mould

102 and 103, the clamping plate 105 that have parison 3 and handle 4 are admitted to parison warm table 106,106 li of parison warm tables, have only parison to be heated by many heater (not shown)s of arranging around parison 3.Then, delivered to blow-molded 107 simultaneously by parison and handle 4 that clamping plate 105 are clamped, and on blow-molded 107 precalculated position that is positioned in the blowing mould.After blowing mould closes up, carry out blow-molded.Then, blowing mould is sent to blown article and removes platform 108 places, and there, blowing mould is opened, and the cast gate 109 of system handle is prescinded.Like this, make the blown bottle of band handle as shown in Figure 5.

According to the present invention, during owing to blow-molded carrying out, handle is sandwiched on the correct position with respect to parison, so handle is connected on the tram of blown bottle.Like this, can make the blown bottle of band handle at an easy rate and not exist in the problem of scattering on the goods.When parison and handle are shaped on preposition by injection moulding, can be positively and produce the blown bottle of a band handle effectively by a single formation device.

Claims

1. device of blown bottle of making the band handle comprises:

One vertically clamps first anchor clamps of a parison;

One clamps second anchor clamps of one handle;

One blowing mould; And

One air blowing parts;

It is characterized in that, also comprise the transfer member of a ring commentaries on classics and the heater block of the described parison of a heating; Wherein, described first anchor clamps are installed on the described transfer member; Described second anchor clamps also are installed on the described transfer member, and the handle on it with respect to the parison on first anchor clamps on the precalculated position; Described blowing mould may be received in parison and the handle on first and second anchor clamps; And described air blowing parts offer described parison with air under pressure in described parison is positioned at described blowing mould the time.

2. device according to claim 1 is characterized in that, comprises that also an injection moulding platform and removes the platform of removing of blown article; Wherein, an injection mould of making parison and handle is arranged in the described injection moulding platform, described first anchor clamps and second anchor clamps be combined into one clamp described parison and described handle, as the clamping plate of described mould removable part; Described blowing mould is combined into blow-molded that described parison is expanded into blown bottle and described bottle is connected with described handle with the air blowing parts; And described injection moulding platform, heater block or warm table, blow-molded and remove platform around the rounded layout of described transfer member.

3. device according to claim 1 is characterized in that, organizes described first anchor clamps and second anchor clamps more and is fixed on the transfer member that described ring changes.